US6328003B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal combustion engine with a separately operable additional valve in the cylinder head and method of operating same
Assignee: Mercedes Benz Group AG
•
Filing: 1999-10-29
•
Granted: 2001-12-11
•
Expires: 2019-10-29
Abstract
Abstract A multi-cylinder internal combustion engine is provided which includes an exhaust gas driven turbocharger. Each cylinder includes at least one inlet port controllable by an inlet valve, at least one outlet port controlled by an outlet valve, and at least one separate additional auxiliary valve arranged in the cylinder head of the engine. A line for gas flow communicates with the additional auxiliary valves. The line from the auxiliary valve of at least a first cylinder is connected directly or indirectly with at least one second cylinder, and the gas flow through that line from the first cylinder to the second cylinder is controllably guided also to a pressure storage device and/or a turbine of the turbocharger.
Inventors
- 👤 Uwe Gaertner
- 👤 Michael Hoffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:41
CPC Classifications
F; F02; F02D; F02D13/00; F02D13/02; F02D13/0276; F02M; F02M26/00; F02M26/01; F02M26/13; F02M26/37; F02M26/42; F02M26/43; F02B; F02B21/00; F02B29/00; F02B29/04; F02B29/0406; F02M26/02; F02M26/04; F02M26/05; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 69
Claim 1
Independent Claim
179 words
An internal combustion engine comprising: a first cylinder, a first intake valve operable to control an intake port of the first cylinder, a first exhaust valve operable to control an exhaust port of the first cylinder, a first additional valve operable to control gas flow from the first cylinder separately from the first intake valve and the first exhaust valve, a second cylinder, a second intake valve operable to control an intake port of the second cylinder, a second exhaust valve operable to control an exhaust port of the second cylinder, a second additional valve operable to control gas flow from the second cylinder separately from the second intake valve and the second exhaust valve, a gas flow line communicating with the first additional valve, and a gas flow control arrangement operable to control gas flow in the gas flow line from the first cylinder to the second cylinder, further comprising a compressed air system, wherein said gas flow control arrangement is operable to selectively connect the gas flow line with a storage tank of the compressed air system.
Claim 2
Dependent Claim
179 words
An internal combustion engine comprising: a first cylinder, a first intake valve operable to control an intake port of the first cylinder, a first exhaust valve operable to control an exhaust port of the first cylinder, a first additional valve operable to control gas flow from the first cylinder separately from the first intake valve and the first exhaust valve, a second cylinder, a second intake valve operable to control an intake port of the second cylinder, a second exhaust valve operable to control an exhaust port of the second cylinder, a second additional valve operable to control gas flow from the second cylinder separately from the second intake valve and the second exhaust valve, a gas flow line communicating with the first additional valve, and a gas flow control arrangement operable to control gas flow in the gas flow line from the first cylinder to the second cylinder, further comprising a compressed air system, wherein said gas flow control arrangement is operable to selectively connect the gas flow line with a storage tank of the compressed air system.
Claim 3
Dependent Claim
206 words
An internal combustion engine comprising: a first cylinder, a first intake valve operable to control an intake port of the first cylinder, a first exhaust valve operable to control an exhaust port of the first cylinder, a first additional valve operable to control gas flow from the first cylinder separately from the first intake valve and the first exhaust valve, a second cylinder, a second intake valve operable to control an intake port of the second cylinder, a second exhaust valve operable to control an exhaust port of the second cylinder, a second additional valve operable to control gas flow from the second cylinder separately from the second intake valve and the second exhaust valve, a gas flow line communicating with the first additional valve, and a gas flow control arrangement operable to control gas flow in the gas flow line from the first cylinder to the second cylinder, wherein said engine is a diesel engine with an exhaust gas driven turbocharger, and wherein said gas flow control arrangement is operable to communicate gas from the first cylinder to the second cylinder during operation of said first cylinder with gas pressure of the first additional valve which is above an outlet gas pressure of the turbocharger.
Claim 4
Dependent Claim
206 words
An internal combustion engine comprising: a first cylinder, a first intake valve operable to control an intake port of the first cylinder, a first exhaust valve operable to control an exhaust port of the first cylinder, a first additional valve operable to control gas flow from the first cylinder separately from the first intake valve and the first exhaust valve, a second cylinder, a second intake valve operable to control an intake port of the second cylinder, a second exhaust valve operable to control an exhaust port of the second cylinder, a second additional valve operable to control gas flow from the second cylinder separately from the second intake valve and the second exhaust valve, a gas flow line communicating with the first additional valve, and a gas flow control arrangement operable to control gas flow in the gas flow line from the first cylinder to the second cylinder, wherein said engine is a diesel engine with an exhaust gas driven turbocharger, and wherein said gas flow control arrangement is operable to communicate gas from the first cylinder to the second cylinder during operation of said first cylinder with gas pressure of the first additional valve which is above an outlet gas pressure of the turbocharger.
Claim 5
Independent Claim
249 words
A method of operating an internal combustion engine comprising: a first cylinder, a first intake valve operable to control an intake port of the first cylinder, a first exhaust valve operable to control an exhaust port of the first cylinder, a first additional valve operable to control gas flow from the first cylinder separately from the first intake valve and the first exhaust valve, a second cylinder, a second intake valve operable to control an intake port of the second cylinder, a second exhaust valve operable to control an exhaust port of the second cylinder, a second additional valve operable to control gas flow from the second cylinder separately from the second intake valve and the second exhaust valve, a gas flow line communicating with the first additional valve, and a gas flow control arrangement operable to control gas flow in the gas flow line from the first cylinder to the second cylinder, said method comprising operating the gas flow control arrangement to communicate gas from the first cylinder to the second cylinder as a function of engine operating conditions, including the operating cycle of the first cylinder, wherein said engine is a diesel engine with an exhaust gas driven turbocharger, and wherein said operating the gas glow arrangement includes communicating gas from the first cylinder to the gas flow line and the second cylinder during operation of said first cylinder with gas pressure at the first additional valve which is above an outlet gas pressure of the turbocharger.
Claim 6
Independent Claim
249 words
A method of operating an internal combustion engine comprising: a first cylinder, a first intake valve operable to control an intake port of the first cylinder, a first exhaust valve operable to control an exhaust port of the first cylinder, a first additional valve operable to control gas flow from the first cylinder separately from the first intake valve and the first exhaust valve, a second cylinder, a second intake valve operable to control an intake port of the second cylinder, a second exhaust valve operable to control an exhaust port of the second cylinder, a second additional valve operable to control gas flow from the second cylinder separately from the second intake valve and the second exhaust valve, a gas flow line communicating with the first additional valve, and a gas flow control arrangement operable to control gas flow in the gas flow line from the first cylinder to the second cylinder, said method comprising operating the gas flow control arrangement to communicate gas from the first cylinder to the second cylinder as a function of engine operating conditions, including the operating cycle of the first cylinder, wherein said engine is a diesel engine with an exhaust gas driven turbocharger, and wherein said operating the gas glow arrangement includes communicating gas from the first cylinder to the gas flow line and the second cylinder during operation of said first cylinder with gas pressure at the first additional valve which is above an outlet gas pressure of the turbocharger.
Claim 7
Dependent Claim
143 words
Multicylinder internal combustion engine which has a plurality of cylinders, a first cylinder having at least one intake port and one intake valve, an exhaust port and an exhaust valve, and at least one separately operable additional valve located in a cylinder head of the engine and by which a gas flow in a line is controllable, wherein the line is connected with at least one second cylinder directly or indirectly and with the additional valve, a gas flow from the first cylinder being controllable to selectively flow into at least one of the second cylinder, a compressed air system, and a turbine of an exhaust gas driven turbocharger, and wherein the line from the one additional valve of the first cylinder is connected through a switching valve with a pressure tank or with the exhaust side of at least one second cylinder.
Claim 8
Dependent Claim
143 words
Multicylinder internal combustion engine which has a plurality of cylinders, a first cylinder having at least one intake port and one intake valve, an exhaust port and an exhaust valve, and at least one separately operable additional valve located in a cylinder head of the engine and by which a gas flow in a line is controllable, wherein the line is connected with at least one second cylinder directly or indirectly and with the additional valve, a gas flow from the first cylinder being controllable to selectively flow into at least one of the second cylinder, a compressed air system, and a turbine of an exhaust gas driven turbocharger, and wherein the line from the one additional valve of the first cylinder is connected through a switching valve with a pressure tank or with the exhaust side of at least one second cylinder.
Claim 9
Dependent Claim
22 words
Internal combustion engine according to claim 4 , wherein a check valve is located between the additional valve and the switching valve.
Claim 10
Independent Claim
222 words
A method of operating an internal combustion engine comprising: a first cylinder, a first intake valve operable to control an intake port of the first cylinder, a first exhaust valve operable to control an exhaust port of the first cylinder, a first additional valve operable to control gas flow from the first cylinder separately from the first intake valve and the first exhaust valve, a second cylinder, a second intake valve operable to control an intake port of the second cylinder, a second exhaust valve operable to control an exhaust port of the second cylinder, a second additional valve operable to control gas flow from the second cylinder separately from the second intake valve and the second exhaust valve, a gas flow line communicating with the first additional valve, and a gas flow control arrangement operable to control gas flow in the gas flow line from the first cylinder to the second cylinder, said method comprising operating the gas flow control arrangement to communicate gas from the first cylinder to the second cylinder as a function of engine operating conditions, including the operating cycle of the first cylinder, wherein said engine includes an exhaust gas driven turbocharger, and wherein said operating the gas flow control arrangement includes communicating the gas flow through the gas flow line in bypassing relation to the turbocharger.
Claim 11
Independent Claim
222 words
A method of operating an internal combustion engine comprising: a first cylinder, a first intake valve operable to control an intake port of the first cylinder, a first exhaust valve operable to control an exhaust port of the first cylinder, a first additional valve operable to control gas flow from the first cylinder separately from the first intake valve and the first exhaust valve, a second cylinder, a second intake valve operable to control an intake port of the second cylinder, a second exhaust valve operable to control an exhaust port of the second cylinder, a second additional valve operable to control gas flow from the second cylinder separately from the second intake valve and the second exhaust valve, a gas flow line communicating with the first additional valve, and a gas flow control arrangement operable to control gas flow in the gas flow line from the first cylinder to the second cylinder, said method comprising operating the gas flow control arrangement to communicate gas from the first cylinder to the second cylinder as a function of engine operating conditions, including the operating cycle of the first cylinder, wherein said engine includes an exhaust gas driven turbocharger, and wherein said operating the gas flow control arrangement includes communicating the gas flow through the gas flow line in bypassing relation to the turbocharger.
Claim 12
Dependent Claim
35 words
A method according to claim 6 , wherein said operating the gas flow control arrangement includes opening the first additional valve during portions of a power stroke and an exhaust stroke of the first cylinder.
Claim 13
Dependent Claim
35 words
A method according to claim 6 , wherein said operating the gas flow control arrangement includes opening the first additional valve during portions of a power stroke and an exhaust stroke of the first cylinder.
Claim 14
Dependent Claim
118 words
Multicylinder internal combustion engine which has a plurality of cylinders, a first cylinder having at least one intake port and one intake valve, an exhaust port and an exhaust valve, and at least one separately operable additional valve located in a cylinder head of the engine and by which a gas flow in a line is controllable, wherein the line is connected with at least one second cylinder directly or indirectly and with the additional valve, a gas flow from the first cylinder being controllable to selectively flow into at least one of the second cylinder, a compressed air system, and a turbine of an exhaust gas driven turbocharger, and wherein a cooler is located in the line.
Claim 15
Dependent Claim
118 words
Multicylinder internal combustion engine which has a plurality of cylinders, a first cylinder having at least one intake port and one intake valve, an exhaust port and an exhaust valve, and at least one separately operable additional valve located in a cylinder head of the engine and by which a gas flow in a line is controllable, wherein the line is connected with at least one second cylinder directly or indirectly and with the additional valve, a gas flow from the first cylinder being controllable to selectively flow into at least one of the second cylinder, a compressed air system, and a turbine of an exhaust gas driven turbocharger, and wherein a cooler is located in the line.
Claim 16
Dependent Claim
24 words
Internal combustion engine according to claim 9 , wherein a storage tank is located in the line and is made integral with the cooler.
Claim 17
Dependent Claim
19 words
Internal combustion engine according to claim 10 , wherein a shutoff valve is located downstream from the storage tank.
Claim 18
Dependent Claim
21 words
Internal combustion engine according to claim 10 , wherein a throttle is located in the line downstream from the storage tank.
Claim 19
Dependent Claim
19 words
Internal combustion engine according to claim 12 , wherein a shutoff valve is located downstream from the storage tank.
Claim 20
Dependent Claim
172 words
Multicylinder internal combustion engine which has a plurality of cylinders, a first cylinder having at least one intake port and one intake valve, an exhaust port and an exhaust valve, and at least one separately operable additional valve located in a cylinder head of the engine and by which a gas flow in a line is controllable, wherein the line is connected with at least one second cylinder directly or indirectly and with the additional valve, a gas flow from the first cylinder being controllable to selectively flow into at least one of the second cylinder, a compressed air system, and a turbine of an exhaust gas driven turbocharger, wherein the line is connected with an intake side of the second cylinder, and wherein the additional valve of the first cylinder in exhaust gas recirculation operation each time following an end of combustion opens during a power stroke or exhaust stroke and closes before cylinder pressure in the exhaust stroke falls below the pressure on the intake side of the second cylinder.
Claim 21
Dependent Claim
172 words
Multicylinder internal combustion engine which has a plurality of cylinders, a first cylinder having at least one intake port and one intake valve, an exhaust port and an exhaust valve, and at least one separately operable additional valve located in a cylinder head of the engine and by which a gas flow in a line is controllable, wherein the line is connected with at least one second cylinder directly or indirectly and with the additional valve, a gas flow from the first cylinder being controllable to selectively flow into at least one of the second cylinder, a compressed air system, and a turbine of an exhaust gas driven turbocharger, wherein the line is connected with an intake side of the second cylinder, and wherein the additional valve of the first cylinder in exhaust gas recirculation operation each time following an end of combustion opens during a power stroke or exhaust stroke and closes before cylinder pressure in the exhaust stroke falls below the pressure on the intake side of the second cylinder.
Claim 22
Dependent Claim
16 words
Internal combustion engine according to claim 14 , wherein a cooler is located in the line.
Claim 23
Dependent Claim
16 words
Internal combustion engine according to claim 15 , wherein the cooler is a boost air cooler.
Claim 24
Dependent Claim
17 words
Internal combustion engine according to claim 14 , wherein a storage tank is located in the line.
Claim 25
Dependent Claim
21 words
Internal combustion engine according to claim 17 , wherein a throttle is located in the line downstream from the storage tank.
Claim 26
Dependent Claim
19 words
Internal combustion engine according to claim 17 , wherein a shutoff valve is located downstream from the storage tank.
Claim 27
Dependent Claim
180 words
An internal combustion engine comprising: a first cylinder, a first intake valve operable to control an intake port of the first cylinder, a first exhaust valve operable to control an exhaust port of the first cylinder, a first additional valve operable to control gas flow from the first cylinder separately from the first intake valve and the first exhaust valve, a second cylinder, a second intake valve operable to control an intake port of the second cylinder, a second exhaust valve operable to control an exhaust port of the second cylinder, a second additional valve operable to control gas flow from the second cylinder separately from the second intake valve and the second exhaust valve, a gas flow line communicating with the first additional valve, and a gas flow control arrangement operable to control gas flow in the gas flow line from the first cylinder to the second cylinder, further comprising an exhaust gas driven turbocharger, wherein said gas flow control arrangement controls the gas flow from the first cylinder to the second cylinder in bypassing relation to the turbocharger.
Claim 28
Dependent Claim
180 words
An internal combustion engine comprising: a first cylinder, a first intake valve operable to control an intake port of the first cylinder, a first exhaust valve operable to control an exhaust port of the first cylinder, a first additional valve operable to control gas flow from the first cylinder separately from the first intake valve and the first exhaust valve, a second cylinder, a second intake valve operable to control an intake port of the second cylinder, a second exhaust valve operable to control an exhaust port of the second cylinder, a second additional valve operable to control gas flow from the second cylinder separately from the second intake valve and the second exhaust valve, a gas flow line communicating with the first additional valve, and a gas flow control arrangement operable to control gas flow in the gas flow line from the first cylinder to the second cylinder, further comprising an exhaust gas driven turbocharger, wherein said gas flow control arrangement controls the gas flow from the first cylinder to the second cylinder in bypassing relation to the turbocharger.
Claim 29
Dependent Claim
38 words
An internal combustion engine according to claim 20 , comprising a compressed air system, wherein said gas flow control arrangement is operable to selectively connect the gas flow line with a storage tank of the compressed air system.
Claim 30
Dependent Claim
52 words
An internal combustion engine according to claim 20 , wherein said engine includes a further plurality of cylinders with respective intake, exhaust and additional valves, and wherein said gas flow line is a common line communicating with the first additional valve and with the additional valves of the further plurality of cylinders.
Claim 31
Dependent Claim
39 words
An internal combustion engine according to claim 20 , further comprising a compressed air system, wherein said gas flow control arrangement is operable to selectively connect the gas flow line with a storage tank of the compressed air system.
Claim 32
Dependent Claim
37 words
An internal combustion engine according to claim 20 , wherein said gas flow control arrangement is operable to open the first additional valve during portions of a power stroke and an exhaust stroke of the first cylinder.
Claim 33
Dependent Claim
66 words
An internal combustion engine according to claim 24 , wherein said engine is a diesel engine with an exhaust gas driven turbocharger, and wherein said gas flow control arrangement is operable to communicate gas from the first cylinder to the second cylinder during operation of said first cylinder with gas pressure of the first additional valve which is above an outlet gas pressure of the turbocharger.
Claim 34
Independent Claim
229 words
A method of operating an internal combustion engine comprising: a first cylinder a first intake valve operable to control an intake port of the first cylinder, a first exhaust valve operable to control an exhaust port of the first cylinder, a first additional valve operable to control gas flow from the first cylinder separately from the first intake valve and the first exhaust valve, a second cylinder, a second intake valve operable to control an intake port of the second cylinder, a second exhaust valve operable to control an exhaust port of the second cylinder, a second additional valve operable to control gas flow from the second cylinder separately from the second intake valve and the second exhaust valve, a gas flow line communicating with the first additional valve, and a gas flow control arrangement operable to control gas flow in the gas flow line from the first cylinder to the second cylinder, said method comprising operating the gas flow control arrangement to communicate gas from the first cylinder to the second cylinder as a function of engine operating conditions, including the operating cycle of the first cylinder, wherein a compressed air system is provided in conjunction with the engine, and wherein said operating the gas flow control arrangement includes selectively communicating the gas flow in the gas flow line with a storage tank of the compressed air system.
Claim 35
Independent Claim
229 words
A method of operating an internal combustion engine comprising: a first cylinder a first intake valve operable to control an intake port of the first cylinder, a first exhaust valve operable to control an exhaust port of the first cylinder, a first additional valve operable to control gas flow from the first cylinder separately from the first intake valve and the first exhaust valve, a second cylinder, a second intake valve operable to control an intake port of the second cylinder, a second exhaust valve operable to control an exhaust port of the second cylinder, a second additional valve operable to control gas flow from the second cylinder separately from the second intake valve and the second exhaust valve, a gas flow line communicating with the first additional valve, and a gas flow control arrangement operable to control gas flow in the gas flow line from the first cylinder to the second cylinder, said method comprising operating the gas flow control arrangement to communicate gas from the first cylinder to the second cylinder as a function of engine operating conditions, including the operating cycle of the first cylinder, wherein a compressed air system is provided in conjunction with the engine, and wherein said operating the gas flow control arrangement includes selectively communicating the gas flow in the gas flow line with a storage tank of the compressed air system.
Claim 36
Dependent Claim
68 words
A method according to claim 26 , wherein said engine is a diesel engine with an exhaust gas driven turbocharger, and wherein said operating the gas flow arrangement includes communicating gas from the first cylinder to the gas flow line and the second cylinder during operation of said first cylinder with gas pressure at the first additional valve which is above an outlet gas pressure of the turbocharger.
Claim 37
Dependent Claim
50 words
A method according to claim 26 , wherein said engine includes a further plurality of cylinders with respective intake, exhaust and additional valves, and wherein said gas flow line is a common line communicating with the first additional valve and with the additional valves of the further plurality of cylinders.
Claim 38
Dependent Claim
41 words
A method according to claim 26 , wherein said engine includes an exhaust gas driven turbocharger, and wherein said operating the gas flow control arrangement includes communicating the gas flow through the gas flow line in bypassing relation to the turbocharger.
Claim 39
Dependent Claim
50 words
A method according to claim 29 , wherein said engine includes a further plurality of cylinders with respective intake, exhaust and additional valves, and wherein said gas flow line is a common line communicating with the first additional valve and with the additional valves of the further plurality of cylinders.
Claim 40
Dependent Claim
48 words
A method according to claim 30 , wherein a compressed air system is provided in conjunction with the engine, and wherein said operating the gas flow control arrangement includes selectively communicating the gas flow in the gas flow line with a storage tank of the compressed air system.
Claim 41
Independent Claim
142 words
A method of operating an internal combustion engine which has a plurality of cylinders, a first cylinder having at least one intake port and one intake valve, an exhaust port and an exhaust valve, and at least one separately operable additional valve located in a cylinder head of the engine and by which a gas flow in a line is controllable, wherein the line is connected with at least one second cylinder directly or indirectly and with the additional valve, a gas flow from the first cylinder into the at least one second cylinder being controllable to selectively flow into one of a compressed air system and a turbine of an exhaust gas driven turbocharger, said method comprising controlling the additional valve to communicate gas from the first cylinder to the line as a function of operating cycles of the first cylinder.
Claim 42
Independent Claim
142 words
A method of operating an internal combustion engine which has a plurality of cylinders, a first cylinder having at least one intake port and one intake valve, an exhaust port and an exhaust valve, and at least one separately operable additional valve located in a cylinder head of the engine and by which a gas flow in a line is controllable, wherein the line is connected with at least one second cylinder directly or indirectly and with the additional valve, a gas flow from the first cylinder into the at least one second cylinder being controllable to selectively flow into one of a compressed air system and a turbine of an exhaust gas driven turbocharger, said method comprising controlling the additional valve to communicate gas from the first cylinder to the line as a function of operating cycles of the first cylinder.
Claim 43
Dependent Claim
36 words
A method according to claim 32 , wherein said controlling the additional valve includes opening the additional valve at the first cylinder during portions of a power stroke and an exhaust stroke at the first cylinder.
Claim 44
Dependent Claim
50 words
A method according to claim 32 , wherein said engine includes a further plurality of cylinders with respective intake, exhaust and additional valves, and wherein said gas flow line is a common line communicating with the first additional valve and with the additional valves of the further plurality of cylinders.
Claim 45
Dependent Claim
70 words
A method according to claim 34 , wherein said controlling includes opening respective additional valves of those cylinders which are in a power stroke and opening those of the additional valves of the cylinders which are in an intake stroke and communicating exhaust gas to flow from the cylinders in the power stroke through the additional valves and through the common line into the other cylinders during their intake stroke.
Claim 46
Dependent Claim
72 words
A method according to claim 34 , wherein said controlling includes opening respective additional valves of the cylinders which are in an exhaust cycle and opening respective additional valves of the cylinders which are in intake stroke and communicating exhaust gas from the respective cylinders to flow away from the cylinders in the exhaust stroke through the additional valves and through the common line into other respective cylinders in the intake stroke.
Claim 47
Dependent Claim
73 words
A method according to claim 34 , wherein said controlling includes opening the additional valve of respective cylinders which are in a compression cycle and opening respective additional valves of cylinders which are in a power stroke when the compression pressure exceeds the working pressure such that fresh air flows from the cylinders in the compression stroke through the additional valves and through the common line into the cylinders in the power stroke.
Claim 48
Dependent Claim
37 words
A method according to claim 34 , wherein at higher pressures on an exhaust side, exhaust gases recirculating from the exhaust side through the common line and through a respective additional valve and at least one cylinder.
Claim 49
Dependent Claim
43 words
A method according to claim 34 , wherein said first cylinder is operated without fuel injection to thereby operate to move compressed air via the additional valve to respective other cylinders to thereby increase delivery of air and power for the remaining cylinders.
Claim 50
Dependent Claim
111 words
Multicylinder internal combustion engine which has a plurality of cylinders, a first cylinder having at least one intake port and one intake valve, an exhaust port and an exhaust valve, and at least one separately operable additional valve located in a cylinder head of the engine and by which a gas flow in a line is controllable, wherein the line is connected with at least one second cylinder directly or indirectly and with the additional valve, a gas flow from the first cylinder into the at least one second cylinder being controllable to selectively flow into one of a compressed air system and a turbine of an exhaust gas driven turbocharger.
Claim 51
Dependent Claim
111 words
Multicylinder internal combustion engine which has a plurality of cylinders, a first cylinder having at least one intake port and one intake valve, an exhaust port and an exhaust valve, and at least one separately operable additional valve located in a cylinder head of the engine and by which a gas flow in a line is controllable, wherein the line is connected with at least one second cylinder directly or indirectly and with the additional valve, a gas flow from the first cylinder into the at least one second cylinder being controllable to selectively flow into one of a compressed air system and a turbine of an exhaust gas driven turbocharger.
Claim 52
Dependent Claim
32 words
Internal combustion engine according to claim 40 , wherein the additional valve can be hydraulically cycled freely by an actuating piston and a hydraulic pressure increase located upstream of the actuating piston.
Claim 53
Dependent Claim
41 words
Internal combustion engine according to claim 40 , wherein the line from the one additional valve of the first cylinder is connected through a switching valve with a pressure tank or with the exhaust side of at least one second cylinder.
Claim 54
Dependent Claim
22 words
Internal combustion engine according to claim 42 , wherein a check valve is located between the additional valve and the switching valve.
Claim 55
Dependent Claim
31 words
Internal combustion engine according to claim 40 , wherein each of the cylinders have said intake, exhaust and additional valves, and wherein the additional valves are connected by a common line.
Claim 56
Dependent Claim
14 words
Internal combustion engine according to claim 44 , wherein the common line is cooled.
Claim 57
Dependent Claim
31 words
Internal combustion engine according to claim 44 , wherein the common line can be connected by a switching valve with a pressure tank and/or with the exhaust side of the cylinders.
Claim 58
Dependent Claim
38 words
Internal combustion engine according to claim 46 , wherein the common line can be connected through a first switching valve with the exhaust side and through a second switching valve with the pressure tank and the intake side.
Claim 59
Dependent Claim
71 words
Internal combustion engine according to claim 40 , wherein the line is connected with an intake side of the second cylinder, and wherein the additional valve of the first cylinder in exhaust gas recirculation operation each time following an end of combustion opens during a power stroke or exhaust stroke and closes before cylinder pressure in the exhaust stroke falls below the pressure on the intake side of the second cylinder.
Claim 60
Dependent Claim
16 words
Internal combustion engine according to claim 48 , wherein a cooler is located in the line.
Claim 61
Dependent Claim
16 words
Internal combustion engine according to claim 49 , wherein the cooler is a boost air cooler.
Claim 62
Dependent Claim
17 words
Internal combustion engine according to claim 48 , wherein a storage tank is located in the line.
Claim 63
Dependent Claim
21 words
Internal combustion engine according to claim 51 , wherein a throttle is located in the line downstream from the storage tank.
Claim 64
Dependent Claim
19 words
Internal combustion engine according to claim 51 , wherein a shutoff valve is located downstream from the storage tank.
Claim 65
Dependent Claim
16 words
Internal combustion engine according to claim 40 , wherein a cooler is located in the line.
Claim 66
Dependent Claim
24 words
Internal combustion engine according to claim 54 , wherein a storage tank is located in the line and is made integral with the cooler.
Claim 67
Dependent Claim
19 words
Internal combustion engine according to claim 55 , wherein a shutoff valve is located downstream from the storage tank.
Claim 68
Dependent Claim
21 words
Internal combustion engine according to claim 55 , wherein a throttle is located in the line downstream from the storage tank.
Claim 69
Dependent Claim
19 words
Internal combustion engine according to claim 52 , wherein a shutoff valve is located downstream from the storage tank.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-12-10 | 2005-06-11 | 2005-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-12-10 | 2009-06-11 | 2009-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-12-10 | 2013-06-11 | 2013-12-11 | $7700.00 | Window Closed / Lapsed |