US4506633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal combustion engine
Assignee: Robert Bosch GmbH
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Filing: 1982-06-29
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Granted: 1985-03-26
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Expires: 2002-06-29
Abstract
Abstract An internal combustion engine has a fuel supply, an accumulating container, first and second blocking elements, and a plurality of cylinders of which at least one cylinder is separable from the fuel supply by the first blocking element and connected at its outlet side to the accumulating container, and at least another of the cylinders is connected at its inlet side with the accumulating container and is separable from the fuel supply by the second blocking element.
Inventors
- 👤 Heinz Britsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:02
CPC Classifications
F; F02; F02D; F02D17/00; F02D17/02; F02D17/023; F02D17/026; F02B; F02B1/00; F02B1/02; F02B1/04
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
157 words
An internal combustion engine, comprising a plurality of cylinders each having inlet and outlet sides and used differently for starting and operation; fuel supply means; an accumulating container; a plurality of aspirating passages each for a respective one of said cylinders; first blocking means; second blocking means, at least one of said cylinders being separable from said fuel supply means by said first blocking means and connected at its outlet side with said accumulating container for a medium aspirated therethrough, and at least another of said cylinders being connected at its inlet side with said accumulating container and separable from said fuel supply means by said second blocking means; and separate throttles provided in the aspirating passages of both said one and said other cylinders, each of said first and second blocking means including a check valve arranged in the aspirating passage of a respective one of said one and other cylinders provided with said separate throttles.
Claim 2
Dependent Claim
157 words
An internal combustion engine, comprising a plurality of cylinders each having inlet and outlet sides and used differently for starting and operation; fuel supply means; an accumulating container; a plurality of aspirating passages each for a respective one of said cylinders; first blocking means; second blocking means, at least one of said cylinders being separable from said fuel supply means by said first blocking means and connected at its outlet side with said accumulating container for a medium aspirated therethrough, and at least another of said cylinders being connected at its inlet side with said accumulating container and separable from said fuel supply means by said second blocking means; and separate throttles provided in the aspirating passages of both said one and said other cylinders, each of said first and second blocking means including a check valve arranged in the aspirating passage of a respective one of said one and other cylinders provided with said separate throttles.
Claim 3
Dependent Claim
63 words
An internal combustion engine as defined in claim 1; and further comprising two connecting passages each connecting said accumulating container with a respective one of said one and other cylinders and having an inlet to the inlet side of the latter, each of said check valves being located between the inlets of a respective one of said connecting passages and said aspirating passage.
Claim 4
Dependent Claim
27 words
An internal combustion engine as defined in claim 2; and further comprising at least one further check valve arranged in at least one of said connecting passages.
Claim 5
Dependent Claim
122 words
An internal combustion engine, comprising a plurality of cylinders each having inlet and outlet sides and used differently for starting and operation; fuel supply means; an accumulating container; first blocking means; and second blocking means, at least one of said cylinders being separable from said fuel supply means by said first blocking means and connected at its outlet side with said accumulating container for a medium aspirated therethrough, and at least another of said cylinders being connected at its inlet side with said accumulating container and separable from said fuel supply means by said second blocking means, said cylinders which are separable from said fuel supply means each having an additional outlet connected with said accumulating container via an additional outlet passage.
Claim 6
Dependent Claim
122 words
An internal combustion engine, comprising a plurality of cylinders each having inlet and outlet sides and used differently for starting and operation; fuel supply means; an accumulating container; first blocking means; and second blocking means, at least one of said cylinders being separable from said fuel supply means by said first blocking means and connected at its outlet side with said accumulating container for a medium aspirated therethrough, and at least another of said cylinders being connected at its inlet side with said accumulating container and separable from said fuel supply means by said second blocking means, said cylinders which are separable from said fuel supply means each having an additional outlet connected with said accumulating container via an additional outlet passage.
Claim 7
Dependent Claim
44 words
An internal combustion engine as defined in claim 4; and further comprising a plurality of aspirating passages each for a respective one of said cylinders, the aspirating passages of at least one of said one and other cylinders being provided with a separate throttle.
Claim 8
Dependent Claim
27 words
An internal combustion engine as defined in claim 5, wherein the aspirating passages of both said one and said other cylinders are provided with such separate throttles.
Claim 9
Dependent Claim
37 words
An internal combustion engine as defined in claim 4, wherein said fuel supply means includes a common aspirating conduits for all cylinders, said other cylinder being separable by said second blocking means from said common aspirating conduit.
Claim 10
Dependent Claim
33 words
An internal combustion engine as defined in claim 7; and further comprising a pressure regulating valve, said accumulating container being connected with said aspirating conduit for all cylinders through said pressure regulating valve.
Claim 11
Dependent Claim
21 words
An internal combustion engine as defined in claim 7, wherein said common aspirating conduit for all cylinders has a common throttle.
Claim 12
Dependent Claim
72 words
An internal combustion engine as defined in claim 4; and further comprising a plurality of pistons each movable in a respective one of said cylinders, and additional outlet valves each arranged in a respective one of said additional outlets, each of said additional outlet valves being open during upward movement of the piston in the respective cylinder preceding the aspiration stroke, when the respective cylinder is separated from said fuel supply means.
Claim 13
Dependent Claim
56 words
An internal combustion engine as defined in claim 10, wherein each of said cylinders has a normal outlet and a normal outlet valve arranged in the latter for normal operation, said normal outlet valve being open during a piston stroke serving as a working stroke when the respective cylinder is separated from said fuel supply means.
Claim 14
Dependent Claim
48 words
An internal combustion engine as defined in claim 10; and further comprising electronic performance controlling means arranged for controlling fuel supply of said fuel supply means, blocking of at least one of said cylinders from said fuel supply means, and opening and closing of said additional outlet valves.
Claim 15
Dependent Claim
42 words
An internal combustion engine as defined in claim 4, wherein said cylinders each have a branching passage extending from said outlet passage and communicating with said accumulating container, and a reverse valve arranged in said outlet passage prior to said branching passage.
Claim 16
Dependent Claim
45 words
An internal combustion engine as defined in claim 13; and further comprising electronic performance controlling means arranged for controlling fuel supply of said fuel supply means, blocking of at least one of said cylinders from said fuel supply means, and controlling of said reverse valves.
Claim 17
Dependent Claim
48 words
An internal combustion engine as defined in claim 13, wherein said reverse valve is movable between a first position in which it opens said outlet passage and closes said branching passage, and a second position in which it fully opens said branching passage and closes said outlet passage.
Claim 18
Dependent Claim
42 words
An internal combustion engine as defined in claim 15, wherein said cylinders includes a cylinder which is not separable from said fuel supply means, one of said reverse valves being also provided in said not separable cylinder for return of exhaust gases.
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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) | 1988-03-25 | 1988-09-24 | 1989-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-03-25 | 1992-09-24 | 1993-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-03-25 | 1996-09-24 | 1997-03-26 | $7700.00 | Window Closed / Lapsed |