US3976034A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing a combustible gas by partial oxidation for use in internal combustion engines
Assignee: Toyota Motor Corp
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Filing: 1974-01-25
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Granted: 1976-08-24
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Expires: 1994-01-25
Abstract
Abstract A method of operating an internal combustion engine with a combustible gas which comprises the steps of: transforming a refined product of crude oil into a combustible gas in a gas generator by admitting said refined product into said gas generator with 60-120 % of the stoichiometric volume of oxygen needed to oxidize said refined product under the partial oxidation conditions of 400˜800°C with a space velocity ranging from 5000˜50,000 V/VC × hr.sup. -1 ; passing the combustible gas produced to an internal combustion engine to start and operate said internal combustion engine; and discharging the exhaust gases from said internal combustion engine.
Inventors
- 👤 Hiroshi Shinohara
- 👤 Kunihiko Masunaga
- 👤 Toshihito Kondo
- 👤 Kazuhiko Ishiguro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:25
CPC Classifications
F; F02; F02B; F02B43/00; F02B43/02; F02B43/04; F02B1/00; F02B1/02; F02B1/04; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/30
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
136 words
A method of operating an internal combustion engine with a combustible gas, which comprises the steps of: transforming a refined product of crude oil into a combustible gas characterized by a composition comprising 10% - 70% hydrogen, 20% - 75% carbon monoxide, 5 - 60% methane, 0 - 5% carbon dioxide, and up to 20% dry hydrocarbon gases in a generator by admitting said refined product into said gas generator with 60 - 120% of the stoichiometric volume of oxygen needed to oxidize said refined product under the partial oxidation conditions of 400°˜800°C with a space velocity ranging from 5000 ˜ 50,000 V/VC × hr - 1 ; passing the combustible gas produced to an internal combustion engine to start and operate said internal combustion engine; and discharging the exhaust gases from said internal combustion engine.
Claim 2
Independent Claim
136 words
A method of operating an internal combustion engine with a combustible gas, which comprises the steps of: transforming a refined product of crude oil into a combustible gas characterized by a composition comprising 10% - 70% hydrogen, 20% - 75% carbon monoxide, 5 - 60% methane, 0 - 5% carbon dioxide, and up to 20% dry hydrocarbon gases in a generator by admitting said refined product into said gas generator with 60 - 120% of the stoichiometric volume of oxygen needed to oxidize said refined product under the partial oxidation conditions of 400°˜800°C with a space velocity ranging from 5000 ˜ 50,000 V/VC × hr - 1 ; passing the combustible gas produced to an internal combustion engine to start and operate said internal combustion engine; and discharging the exhaust gases from said internal combustion engine.
Claim 3
Dependent Claim
24 words
The method of claim 1, wherein said refined product is oxidized with said oxygen in said gas generator in the presence of a catalyst.
Claim 4
Dependent Claim
26 words
The method of claim 1, wherein said exhaust gases are sent to said gas generator to heat said gas generator before said exhaust gases are discharged.
Claim 5
Dependent Claim
26 words
The method of claim 1, wherein said exhaust gases are sent to a heat exchanger to heat said heat exchanger before said exhaust gases are discharged.
Claim 6
Dependent Claim
87 words
The method of claim 1, which further comprises: cooling said combustible gas in a heat exchanger; passing said cooled combustible gas to a carburetor; passing said cooled combustible gas from said carburetor into said internal combustion engine together with air from an air cleaner to start the engine; discharging the exhaust gas from the engine to a heat exchanger which contains a gas generator; heating an air and fuel mixture within said gas generator with said discharged exhaust gas; and discharging said exhaust gas into the atmosphere.
Claim 7
Dependent Claim
111 words
The method of claim 1, which further comprises: cooling said gas in the upper layer of a heat exchanger which contains an upper and lower layer; passing said cooled combustible gas into a carburetor; passing the combustible gas from said carburetor into said internal combustion engine together with the air from an air cleaner; starting and operating said engine with said combustible gas and air; passing the evolved exhaust gases from said operating engine into the lower layer of said heat exchanger, whereby the combustible gas present in the upper layer of said heat exchanger is more intensely heated; and discharging the exhaust gas from the heat exchanger into the atmosphere.
Claim 8
Dependent Claim
23 words
The method of claim 2, wherein said catalyst is nickel, iron, cobalt, chromium, platinum, tungsten, rhodium, molybdenum, palladium, uranium, rhenium or oxides thereof.
Claim 9
Dependent Claim
36 words
The method of claim 2, wherein said catalyst is combined with a reaction promoter selected from the group consisting of the oxides, carbonates and nitrates of sodium, lithium, cesium, potassium, magnesium, beryllium, calcium, strontium and barium.
Claim 10
Dependent Claim
21 words
The method of claim 2, wherein said catalyst is supported on a silica, alumina, magnesia, dolomite, zeolite, cement or brick carrier.
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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) | 1979-08-24 | 1980-02-23 | 1980-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-24 | 1984-02-23 | 1984-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-24 | 1988-02-23 | 1988-08-24 | $7700.00 | Window Closed / Lapsed |