US3140697A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compression ignition engines
Assignee: Renault SA
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Filing: 1963-05-21
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Granted: 1964-07-14
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Expires: 1983-05-21
Abstract
No abstract record available.
Inventors
- 👤 Peras Lucien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:36
CPC Classifications
F; F02; F02B; F02B19/00; F02B19/14; F02B2019/006; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A COMPRESSION-IGNITION ENGINE COMPRISING A CYLINDER, A CYLINDER HEAD, A PRE-COMBUSTION CHAMBER MOUNTED IN THE CYLINDER HEAD AND INCLUDING SEPARATE UPPER AND LOWER PORTIONS, SAID UPPER PORTION BEING SPACED FROM THE CYLINDER HEAD SO AS TO BE HEAT INSULATED THEREFROM BY AIR IN THE SPACE WHEREBY THE UPPER PORTION IN OPERATION PROVIDES A HOT VAULT, SAID UPPER PORTION HAVING A SUBSTANTIALLY FLAT INNER SURFACE, A FUEL INJECTOR ARRANGED TO DIRECT FUEL JETS AGAINST THE INNER FACE OF SAID VAULT AT A SMALL ANGLE OF INCIDENCE WITH RESPECT THERETO, AND AN AIR
Claim 2
Dependent Claim
91 words
A COMPRESSION-IGNITION ENGINE COMPRISING A CYLINDER, A CYLINDER HEAD, A PRE-COMBUSTION CHAMBER MOUNTED IN THE CYLINDER HEAD AND INCLUDING SEPARATE UPPER AND LOWER PORTIONS, SAID UPPER PORTION BEING SPACED FROM THE CYLINDER HEAD SO AS TO BE HEAT INSULATED THEREFROM BY AIR IN THE SPACE WHEREBY THE UPPER PORTION IN OPERATION PROVIDES A HOT VAULT, SAID UPPER PORTION HAVING A SUBSTANTIALLY FLAT INNER SURFACE, A FUEL INJECTOR ARRANGED TO DIRECT FUEL JETS AGAINST THE INNER FACE OF SAID VAULT AT A SMALL ANGLE OF INCIDENCE WITH RESPECT THERETO, AND AN AIR
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) | 1967-07-14 | 1968-01-13 | 1968-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-14 | 1972-01-13 | 1972-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-14 | 1976-01-13 | 1976-07-14 | $7700.00 | Window Closed / Lapsed |