US4004413A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combustible mixture supply system
Assignee: Nissan Motor Co Ltd
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Filing: 1973-11-27
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Granted: 1977-01-25
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Expires: 1993-11-27
Abstract
Abstract An oxidizer other than air is decomposed, ignited in combination with a fuel, and fed into a combustion chamber to promote combustion of a main air-fuel mixture, the oxidizer or oxidizing agent does not contain nitrogen, and combustion of the mixture in the combustion chamber produces low levels of nitrogen oxides and other pollutants.
Inventors
- 👤 Zene Ueno
- 👤 Tadahiko Nagaoka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:53
CPC Classifications
F; F02; F02C; F02C3/00; F02B; F02B19/00; F02B19/10; F02B47/00; F02B47/04; F02B47/06; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
128 words
A combustion engine system having a main combustion chamber, comprising a combuster connected through a first passageway to said combustion chamber, a reaction chamber communicated with said combuster through a second passageway, a source of an oxidizing agent connected through a third passageway to said reaction chamber, a main passageway opening at one end thereof into said main combustion chamber and communicated at the other end thereof with the atmosphere, a fuel source, a first fuel passageway communicated with said main passageway at one end thereof, a second fuel passageway communicated with said combuster at one end thereof, and a third fuel passageway having one end connected with the other ends of said first and second fuel passageways and the other end thereof connected with said fuel source.
Claim 2
Dependent Claim
128 words
A combustion engine system having a main combustion chamber, comprising a combuster connected through a first passageway to said combustion chamber, a reaction chamber communicated with said combuster through a second passageway, a source of an oxidizing agent connected through a third passageway to said reaction chamber, a main passageway opening at one end thereof into said main combustion chamber and communicated at the other end thereof with the atmosphere, a fuel source, a first fuel passageway communicated with said main passageway at one end thereof, a second fuel passageway communicated with said combuster at one end thereof, and a third fuel passageway having one end connected with the other ends of said first and second fuel passageways and the other end thereof connected with said fuel source.
Claim 3
Dependent Claim
33 words
A combustion engine system according to claim 1, further comprising a pump disposed in said third passageway to supply the oxidizing agent from said source of an oxidizing agent to said reaction chamber.
Claim 4
Dependent Claim
39 words
A combustion engine system according to claim 2, further comprising a fuel pump which is disposed in said third fuel passageway for supplying the fuel from said fuel source to both of said main combustion chamber and said combuster.
Claim 5
Dependent Claim
26 words
A combustion engine system according to claim 3, further comprising a ignition means which is mounted in said combustor for igniting the combustible mixture in it.
Claim 6
Dependent Claim
27 words
A combustion engine system according to claim 4, in which said main passageway has therein an air compressor for supplying the air into said main combustion chamber.
Claim 7
Dependent Claim
21 words
A combustion engine system according to claim 3, in which said second fuel passageway is provided with an auxiliary fuel reservoir.
Claim 8
Dependent Claim
42 words
A combustion engine system according to claim 6, in which said first passageway is provided with a first flow control valve and said second fuel passageway is provided at the downstream of said auxiliary fuel reservoir with a second flow control valve.
Claim 9
Dependent Claim
31 words
A combustion engine system according to claim 4, in which said first passageway is provided with vortex means for imparting a vortex movement to an exhaust gas exhausted from said chamber.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-01-25 | 1980-07-26 | 1981-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-01-25 | 1984-07-26 | 1985-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-01-25 | 1988-07-26 | 1989-01-25 | $7700.00 | Window Closed / Lapsed |