Engine exhaust gas purification system
Abstract
Abstract DESCRIBED IS A SYSTEM FOR THE PURIFICATION OF EXHAUST GASES EMANATING FROM AN INTERNAL COMBUSTION ENGINE. THE SYSTEM INCLUDES A CATALYTIC CONVERTER AND MEANS FOR SUPPLYING FUEL TO THE CATALYTIC CONVERTER WHEN THE ENGINE IS INOPERATIVE. THE SYSTEM MAY INCLUDE A FUEL CONTAINER, A FUEL PUMP, A CHECK VALVE, AN ACCUMULATOR, AND A PRESSURE REGULATOR. FUEL FROM THE PRESSURE REGULATOR MAY BE SUPPLIED TO A GAS-PERMEABLE CHAMBER POSITIONED PROXIMATE THE CATALYST IN THE CATALYTIC CONVERTER. FUEL SUPPLIED TO THE CATALYTIC CONVERTER FROM THE PRESSURE REGULATOR EXOTHERMICALLY REACTS WITH AIR. THE REACTION IS ASSISTED BY THE CATALYST IN THE CONVERTER, AND THE REACTION HEAT MAINTAINS THE CATALYST AT AN EFFECTIVE TEMPERATURE.
Inventors
- 👤 C Schwartz
Bibliographic Details
Claims Analysis
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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) | 1976-09-24 | 1977-03-26 | 1977-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-24 | 1981-03-26 | 1981-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-24 | 1985-03-26 | 1985-09-25 | $7700.00 | Window Closed / Lapsed |