US4829958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device and method for introducing pressurized gas into a combustion chamber of a reciprocating internal combustion engine
Assignee: IFP Energies nouvelles
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Filing: 1986-12-30
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Granted: 1989-05-16
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Expires: 2006-12-30
Abstract
Abstract A device and method for introducing pressurized gas into a combustion chamber of an engine. The device includes a duct and an intermittent obstruction member, with the placing the cylinder and the combustion chamber in communication via said obstruction member.
Inventors
- 👤 Pierre Duret
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:09
CPC Classifications
F; F02; F02B; F02B47/00; F02B47/04; F02B47/08; F02B13/00; F02B13/10; F02B17/00; F02B41/00; F02B41/02; F02B41/06; F02M; F02M26/00; F02M26/13; F02M26/40; F02M26/52; F02M26/59; F02M26/61; F02B1/00; F02B1/02; F02B1/04; F02B75/00; F02B75/02; F02B2075/022; F02B2075/025; F02B2075/027; F02M26/41; F02M26/42; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
83 words
A method for introducing pressurized gas into a combustion chamber of an internal combustion engine having at least one cylinder, a duct and an intermittent obstruction member, said duct placing a cylinder defining a combustion chamber and said combustion chamber in communication via said obstruction member, said at least one cylinder having at least one spark plug, wherein an axis of the duct at a level of the at least one cylinder is directed towards electrodes of said at least one spark plug.
Claim 2
Independent Claim
83 words
A method for introducing pressurized gas into a combustion chamber of an internal combustion engine having at least one cylinder, a duct and an intermittent obstruction member, said duct placing a cylinder defining a combustion chamber and said combustion chamber in communication via said obstruction member, said at least one cylinder having at least one spark plug, wherein an axis of the duct at a level of the at least one cylinder is directed towards electrodes of said at least one spark plug.
Claim 3
Dependent Claim
53 words
The device as claimed in claim 1, applied to an engine having at least two cylinders, wherein said duct places said combustion chamber in communication with the cylinder defining a combustion chamber in an arrangement such that said chamber and said cylinder defining a combustion chamber do not define the same combustion space.
Claim 4
Dependent Claim
60 words
The device as claimed in claim 1, applied to the case where said cylinder defining a combustion chamber and said combustion chamber define the same combustion space, wherein said duct has at least a second obstruction member situated in a duct portion between said cylinder defining a combustion space and said first obstruction member defining said portion into two volumes.
Claim 5
Dependent Claim
38 words
The device as claimed in claim 2, wherein said duct has a second obstruction member situated in the duct portion between said cylinder defining a combustion chamber and said first obstruction member dividing said portion into two volumes.
Claim 6
Independent Claim
33 words
The device as claimed in one of claims 1, 2, 3 or 4, wherein said duct communicates via an auxiliary duct with a gas source, said auxiliary duct having a third obstruction member.
Claim 7
Dependent Claim
15 words
The device as claimed in claim 5, wherein said duct includes a fuel introduction member.
Claim 8
Dependent Claim
31 words
The device as claimed in claim 5, wherein the end of said duct connected to the cylinder defining a combustion chamber has a convergent shape adapted for collecting the pressure wave.
Claim 9
Independent Claim
68 words
A method for introducing pressurized gas into a combustion chamber of an internal combustion engine having at least one cylinder, said at least one cylinder having at least one spark plug, wherein a cylinder defining a combustion chamber is placed intermittently in communication with a combustion chamber via a duct and the gases from this communication are directed substantially towards electrodes of said at least one spark plug.
Claim 10
Independent Claim
68 words
A method for introducing pressurized gas into a combustion chamber of an internal combustion engine having at least one cylinder, said at least one cylinder having at least one spark plug, wherein a cylinder defining a combustion chamber is placed intermittently in communication with a combustion chamber via a duct and the gases from this communication are directed substantially towards electrodes of said at least one spark plug.
Claim 11
Dependent Claim
62 words
The method as claimed in claim 8, wherein an amount of gas having a mean pressure is collected in said cylinder defining a combustion chamber during a fraction of the operating cycle of said cylinder defining a combustion chamber and this gas amount is injected into said combustion chamber while a pressure less than said mean pressure exist in said combustion chamber.
Claim 12
Independent Claim
32 words
The method as claimed in one of claims 8 or 9, wherein said gas amount is collected during the expansion phase of the operating cycle of said cylinder defining a combustion chamber.
Claim 13
Dependent Claim
25 words
The method as claimed in claim 8, wherein said communication is formed at least during the compression phase of said cylinder defining a combustion chamber.
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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) | 1992-05-15 | 1992-11-14 | 1993-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-15 | 1996-11-14 | 1997-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-15 | 2000-11-14 | 2001-05-16 | $7700.00 | Window Closed / Lapsed |