US3236344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement for improving the operation of internal combustion engines
Assignee: Audi AG
•
Filing: 1961-02-09
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Granted: 1966-02-22
•
Expires: 1981-02-09
Abstract
No abstract record available.
Inventors
- 👤 Wawrzinick Erwin
- 👤 Alt Ernst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:03
CPC Classifications
F; F02; F02M; F02M25/00; F02M25/06; F01; F01N; F01N3/00; F01N3/08; F01N3/10; F01N3/18; F01N3/20; F02B; F02B1/00; F02B25/00; F02M3/00; F02M3/02; F02M3/04; F02M3/045; F02B2700/00; F02B2700/02; F02B2700/021; F02B2700/03; F02B2700/031; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12; Y10; Y10S; Y10S60/00; Y10S60/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
ARRANGEMENT FOR REGULATING THE AMOUNT OF UNBURNT HYDROCARBONS IN EXHAUST GASES OF INTERNAL COMBUSTION ENGINES COMPRISING AN ENGINE, A FUEL SUPPLY CONNECTED TO SAID ENGINE, VALVE MEANS FOR REGULATING SAID FUEL SUPPLY TO SAID ENGINE MEANS FOR PROVIDING AN AIR SUPPLY CONNECTED TO SAID ENGINE, MEANS FOR COMBINING SAID FUEL SUPPLY WITH SAID AIR SUPPLY AT A PREDETERMINED RATIO, NEEDLE VALVE MEANS FOR INCREASING THE RATIO OF AIR TO FUEL SUPPLIED TO SAID ENGINE, A CLUTCH, CLUTCH OPERATING MEANS CONNECTED TO SAID CLUTCH AND MEANS FOR CONTROLLING THE NEEDLE VALVE MEANS INCLUDING SWITCH MEANS OPERATING CONNECTED TO AND RESPONSIVE TO ENGINE OPERATION AND RESPONSIVE TO SAID CLUTCH OPERATING MEANS FOR CONTROLLING THE AMOUNT OF FUEL SUPPLIED TO SAID ENGINE DURING OPERATION WITHOUT LOAD.
Claim 2
Dependent Claim
123 words
ARRANGEMENT FOR REGULATING THE AMOUNT OF UNBURNT HYDROCARBONS IN EXHAUST GASES OF INTERNAL COMBUSTION ENGINES COMPRISING AN ENGINE, A FUEL SUPPLY CONNECTED TO SAID ENGINE, VALVE MEANS FOR REGULATING SAID FUEL SUPPLY TO SAID ENGINE MEANS FOR PROVIDING AN AIR SUPPLY CONNECTED TO SAID ENGINE, MEANS FOR COMBINING SAID FUEL SUPPLY WITH SAID AIR SUPPLY AT A PREDETERMINED RATIO, NEEDLE VALVE MEANS FOR INCREASING THE RATIO OF AIR TO FUEL SUPPLIED TO SAID ENGINE, A CLUTCH, CLUTCH OPERATING MEANS CONNECTED TO SAID CLUTCH AND MEANS FOR CONTROLLING THE NEEDLE VALVE MEANS INCLUDING SWITCH MEANS OPERATING CONNECTED TO AND RESPONSIVE TO ENGINE OPERATION AND RESPONSIVE TO SAID CLUTCH OPERATING MEANS FOR CONTROLLING THE AMOUNT OF FUEL SUPPLIED TO SAID ENGINE DURING OPERATION WITHOUT LOAD.
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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) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |