US3963000A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for reforming engine fuel into hydrogen gas-containing mixture by catalytic reaction
Assignee: Nissan Motor Co Ltd
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Filing: 1974-12-19
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Granted: 1976-06-15
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Expires: 1994-12-19
Abstract
Abstract The system fundamentarily consists of a means to prepare a substantially gaseous mixture of a fuel, e.g., hydrocarbons, oxygen and water, a heated catalyst chamber and a reciprocating compressor. The compressor is arranged and valve-controlled such that the fuel mixture is pressurized before the feeding into the catalyst chamber and the heated and pressurized H 2 -containing mixture is drawn into and expanded in the working chamber of the compressor before the feeding into an engine. The means to prepare the starting fuel mixture may include a sub-system for producing oxygen and water from hydrogen peroxide.
Inventors
- 👤 Katuaki Kosaka
- 👤 Zene Ueno
- 👤 Tadahiko Nagaoka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:27
CPC Classifications
F; F02; F02B; F02B1/00; F02B1/02; C; C01; C01B; C01B3/00; C01B3/02; C01B3/32; C01B3/34; C01B3/38; C01B3/386
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
194 words
A system for the preparation of a fuel mixture to feed into an engine, comprising: first means to prepare a substantially gaseous first mixture at least of an organic fuel, oxygen and water; a reaction chamber containing therein a catalyst capable of converting said first mixture into a gaseous second mixture at least of hydrogene and carbon monoxide at elevated temperatures; second means to heat said catalyst; and a reciprocating compressor having at least one working chamber defined above a piston and provided with an intake valve and a discharge valve; said compressor being fluidly connected with said first means, said reaction chamber and the engine such that both said first means and the engine communicate with said reaction chamber through said working chamber, said compressor being constructed such that said first mixture is compressed in said working chamber and subsequently forced out into said reaction chamber to enhance the efficiencies of the reactions in said reaction chamber, and that said second mixture is drawn into and expanded in said working chamber to reduce the temperature of said second mixture and sustain the operation of said compressor, and subsequently discharged therefrom to the engine.
Claim 2
Independent Claim
194 words
A system for the preparation of a fuel mixture to feed into an engine, comprising: first means to prepare a substantially gaseous first mixture at least of an organic fuel, oxygen and water; a reaction chamber containing therein a catalyst capable of converting said first mixture into a gaseous second mixture at least of hydrogene and carbon monoxide at elevated temperatures; second means to heat said catalyst; and a reciprocating compressor having at least one working chamber defined above a piston and provided with an intake valve and a discharge valve; said compressor being fluidly connected with said first means, said reaction chamber and the engine such that both said first means and the engine communicate with said reaction chamber through said working chamber, said compressor being constructed such that said first mixture is compressed in said working chamber and subsequently forced out into said reaction chamber to enhance the efficiencies of the reactions in said reaction chamber, and that said second mixture is drawn into and expanded in said working chamber to reduce the temperature of said second mixture and sustain the operation of said compressor, and subsequently discharged therefrom to the engine.
Claim 3
Dependent Claim
153 words
A system according to claim 1, wherein said compressor has a single reciprocating piston and a single working chamber defined above said piston, said working chamber being communicable with said first means and the engine through said intake port and said discharge port thereof, respectively, and communicating with said reaction chamber through an interjacent port thereof, said intake and discharge ports being equipped with an intake valve and a discharge valve, respectively, said intake and discharge valves being timed such that said first mixture is sucked into said working chamber on a first and downward stroke of said piston and then compressed and forced out into said reaction chamber during a second and upward stroke of said piston, and that said second mixture is sucked into said working chamber on a third and downward stroke of said piston and then discharged into the engine on a fourth and upward stroke of said piston.
Claim 4
Dependent Claim
22 words
A system according to claim 2, further comprising a gas reservoir arranged between said discharge port of said compressor and the engine.
Claim 5
Dependent Claim
42 words
A system according to claim 2, wherein said interjacent port is equipped with a valve timed in such a manner that said valve is opened at a later stage of said second stroke and closed at the end of said third stroke.
Claim 6
Dependent Claim
182 words
A system according to claim 1, wherein said compressor has two pistons connected to a single crank so as to reciprocate in the opposite directions to each other and two separate working chambers defined above the respective pistons, the first working chamber being communicable with said first means and said reaction chamber through an intake port and a discharge port thereof, respectively, the second working chamber being communicable with said reaction chamber and the engine through an intake port and a discharge port thereof, respectively, all of said intake and discharge ports of said first and second working chambers being equipped with intake and discharge valves, respectively, said intake and discharge valves being timed such that said first mixture is sucked into said first working chamber on a first and downward stroke of said first piston and then compressed and forced out into said reaction chamber during a second and upward stroke of said first piston, and that said second mixture is sucked into said second working chamber on said second stroke and then discharged into the engine on said first stroke.
Claim 7
Dependent Claim
29 words
A system according to claim 1, wherein said first means includes third means to prepare oxygen and water by a catalytic decomposition of an aqueous solution of hydrogen peroxide.
Claim 8
Dependent Claim
35 words
A system according to claim 1, wherein said first means is fluidly connected with an exhaust system of the engine such that a portion of the engine exhaust gas is mixed with said first mixture.
Claim 9
Dependent Claim
36 words
A system according to claim 1, wherein said second means is a heat exchanger disposed in said reaction chamber and arranged such that at least a portion of the exhaust gas from said engine passes therethrough.
References Cited (Backward Citations)
US3798005A
Cited
US3635200A
Cited
US3672341A
Cited
US3717129A
Cited
US3828736A
Cited
US3682142A
Cited
US3709203A
Cited
US3817232A
Cited
US3871838A
Cited
US3897225A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-15 | 1979-12-15 | 1980-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-15 | 1983-12-15 | 1984-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-15 | 1987-12-15 | 1988-06-15 | $7700.00 | Window Closed / Lapsed |