US3085559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double injection device for internal combustion engines
Assignee: IFP Energies nouvelles
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Filing: 1961-03-06
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Granted: 1963-04-16
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Expires: 1981-03-06
Abstract
No abstract record available.
Inventors
- 👤 Larbre Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:17
CPC Classifications
F; F02; F02B; F02B7/00; F02B7/02; F02M; F02M45/00; F02M45/02; F02M59/00; F02M59/12; F02M59/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
IN AN INTERNAL COMBUSTION ENGINE OF THE COMPRESSION IGNITION TYPE HAVING AN INJECTION PUMP WITH AN EVEN NUMBER OF DELIVERY LINES LEADING FROM THE PUMP TO THE CYLINDERS OF THE ENGINE, A DOUBLE-INJECTION DEVICE COMPRISING A BODY CONNECTED BETWEEN A PAIR OF DELIVERY LINES WHICH ARE FED BY A PUMP AT INTERVALS OF TIME CORRESPONDING TO A HALF CYCLE OF THE ENGINE, THERE BEING A CYLINDER WITHIN SAID BODY BETWEEN THE INNER WALLS THEREOF, A FREELY MOVEABLE PISTON IN SAID CYLINDER HAVING ITS STROKE LIMITED BY THE END FACES THEREOF, SAID PISTON DEFINING A PAIR OF CHAMBERS THEREIN, MEANS FOR ESTABLISHING FREE COMMUNICATION BETWEEN EACH CHAMBER OF A PAIR THEREOF AND ONE OF THE PAIR OF SAID DELIVERY LINES, AND MEANS FOR SLOWING DOWN THE MOVEMENT OF THE PISTON TOWARD THE END OF ITS STROKE.
Claim 2
Dependent Claim
135 words
IN AN INTERNAL COMBUSTION ENGINE OF THE COMPRESSION IGNITION TYPE HAVING AN INJECTION PUMP WITH AN EVEN NUMBER OF DELIVERY LINES LEADING FROM THE PUMP TO THE CYLINDERS OF THE ENGINE, A DOUBLE-INJECTION DEVICE COMPRISING A BODY CONNECTED BETWEEN A PAIR OF DELIVERY LINES WHICH ARE FED BY A PUMP AT INTERVALS OF TIME CORRESPONDING TO A HALF CYCLE OF THE ENGINE, THERE BEING A CYLINDER WITHIN SAID BODY BETWEEN THE INNER WALLS THEREOF, A FREELY MOVEABLE PISTON IN SAID CYLINDER HAVING ITS STROKE LIMITED BY THE END FACES THEREOF, SAID PISTON DEFINING A PAIR OF CHAMBERS THEREIN, MEANS FOR ESTABLISHING FREE COMMUNICATION BETWEEN EACH CHAMBER OF A PAIR THEREOF AND ONE OF THE PAIR OF SAID DELIVERY LINES, AND MEANS FOR SLOWING DOWN THE MOVEMENT OF THE PISTON TOWARD THE END OF ITS STROKE.
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) | 1966-04-15 | 1966-10-15 | 1967-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-15 | 1970-10-15 | 1971-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-15 | 1974-10-15 | 1975-04-16 | $7700.00 | Window Closed / Lapsed |