US3687119A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control device for an oil and gas operated diesel engine
Assignee: Individual
•
Filing: 1971-01-08
•
Granted: 1972-08-29
•
Expires: 1991-01-08
Abstract
Abstract A control device for a compression-ignition engine in which a venturi means forming a part of an exhaust pipe of the engine is connected to a first pipe so that the first pipe receives suction by the passage of exhaust gases through the venturi means. The first pipe is connected to a first chamber from which chamber a second chamber is separated by a flexible diaphragm, and a second pipe connects the second chamber to the exhaust pipe of the engine. A control valve controls the flow of gaseous fuel into the air induction port of the engine and operating means operates the valve in response to movement of the diaphragm. A second venturi means is associated with an air induction pipe for conducting air into the engine for combustion, and a third pipe connected to the second venturi means receives suction by the passage of air through the second venturi means. The third pipe is connected to a third chamber separated by a second flexible diaphragm from the second chamber and separated by a third flexible diaphragm from a fourth chamber. A pipe connects the fourth chamber to the air induction pipe, and the control valve is arranged to control the flow of gaseous fuel into the fourth chamber. An operating member is adapted to be moved by the first, second and third diaphragms to operate the control valve to control the supply of gaseous fuel in accordance with the displacements of the diaphragms.
Inventors
- 👤 Adrianus Johannes Th Hoogeboom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:31
CPC Classifications
F; F02; F02D; F02D9/00; F02B; F02B3/00; F02B3/06; F02D2700/00; F02D2700/02; F02D2700/0202; F02D2700/0215
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
122 words
A control device for a compression-ignition engine having an air induction port and an exhaust pipe, including a venturi means forming a part of the exhaust pipe, a first pipe connected to the venturi means so as to receive suction by the passage of exhaust gasses through the venturi means, a first chamber, said first pipe being connected to the first chamber, a second chamber, a flexible diaphragm separating the second chamber from the first chamber, a second pipe connecting the second chamber to the exhaust pipe, a control valve for controlling the flow of gaseous fuel into the air induction port, and operating means for operating the valve in response to movement of the diaphragm to urge open the control valve.
Claim 2
Dependent Claim
122 words
A control device for a compression-ignition engine having an air induction port and an exhaust pipe, including a venturi means forming a part of the exhaust pipe, a first pipe connected to the venturi means so as to receive suction by the passage of exhaust gasses through the venturi means, a first chamber, said first pipe being connected to the first chamber, a second chamber, a flexible diaphragm separating the second chamber from the first chamber, a second pipe connecting the second chamber to the exhaust pipe, a control valve for controlling the flow of gaseous fuel into the air induction port, and operating means for operating the valve in response to movement of the diaphragm to urge open the control valve.
Claim 3
Dependent Claim
265 words
A control device for a compression-ignition engine having an air induction port and an exhaust pipe, including a venturi means forming part of the exhaust pipe, a first pipe connected to the venturi means so as to receive suction by the passage of exhaust gases through the venturi means, a first chamber, said first pipe being connected to the first chamber, a second chamber, a flexible diaphragm separating the second chamber from the first chamber, a second pipe connecting the second chamber to the exhaust pipe, a control valve for controlling thE flow of gaseous fuel into the air induction port, and operating means for operating the valve in response to movement of the diaphragm to urge open the control valve, an air induction pipe for conducting air into the engine for combustion, a second venturi means constituting a part of the air induction pipe, a third pipe connected to the second venturi means to receive suction by the passage of air through the second venturi means, a third chamber connected to the third pipe, a second flexible diaphragm separating the third chamber from the second chamber, a fourth chamber, a third flexible diaphragm separating the third chamber from the fourth chamber, a pipe connecting the fourth chamber to the air induction pipe, with the control valve being arranged to control the flow of gaseous fuel into the fourth chamber, and an operating member adapted to be moved by the first, second and third diaphragms to operate the control valve to control the supply of gaseous fuel in accordance with the displacements of the diaphragms.
Claim 4
Dependent Claim
265 words
A control device for a compression-ignition engine having an air induction port and an exhaust pipe, including a venturi means forming part of the exhaust pipe, a first pipe connected to the venturi means so as to receive suction by the passage of exhaust gases through the venturi means, a first chamber, said first pipe being connected to the first chamber, a second chamber, a flexible diaphragm separating the second chamber from the first chamber, a second pipe connecting the second chamber to the exhaust pipe, a control valve for controlling thE flow of gaseous fuel into the air induction port, and operating means for operating the valve in response to movement of the diaphragm to urge open the control valve, an air induction pipe for conducting air into the engine for combustion, a second venturi means constituting a part of the air induction pipe, a third pipe connected to the second venturi means to receive suction by the passage of air through the second venturi means, a third chamber connected to the third pipe, a second flexible diaphragm separating the third chamber from the second chamber, a fourth chamber, a third flexible diaphragm separating the third chamber from the fourth chamber, a pipe connecting the fourth chamber to the air induction pipe, with the control valve being arranged to control the flow of gaseous fuel into the fourth chamber, and an operating member adapted to be moved by the first, second and third diaphragms to operate the control valve to control the supply of gaseous fuel in accordance with the displacements of the diaphragms.
Claim 5
Dependent Claim
48 words
The control device as claimed in claim 2 wherein the proportions of the areas of flexibility of the three diaphragms are selected to give the required rate of increase of supply of gaseous fuel with the two rates of increase of suction from the two venturi means respectively.
Claim 6
Dependent Claim
47 words
The control device as claimed in claim 2 wherein the operating member includes a rod connected to each diaphragm, and a control lever pivotably mounted in the fourth chamber arranged to close a port for supplying gaseous fuel to the fourth chamber against which the rod abuts.
Claim 7
Dependent Claim
38 words
The control device as claimed in claim 2 including a storage tank for storing the gaseous fuel under pressure and pressure regulator means for supplying gaseous fuel from said tank to the fourth chamber at a reduced pressure.
References Cited (Backward Citations)
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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) | 1975-08-29 | 1976-02-28 | 1976-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-29 | 1980-02-28 | 1980-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-29 | 1984-02-28 | 1984-08-29 | $7700.00 | Window Closed / Lapsed |