US3343526A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubrication of the radial segments of rotary engines
Assignee: Renault SA
•
Filing: 1964-03-16
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Granted: 1967-09-26
•
Expires: 1984-03-16
Abstract
No abstract record available.
Inventors
- 👤 Peras Lucien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:02
CPC Classifications
F; F01; F01C; F01C19/00; F02; F02B; F02B53/00; F02B2053/005; F02B75/00; F02B75/02; F02B2075/022; F02B2075/027; F02B2730/00; F02B2730/01; F02B2730/018; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A ROTARY ENGINE COMPRISING A LOBED STATOR; A ROTATABLE CRANKSHAFT HAVING AN ECCENTRIC PORTION; A LOBED ROTOR MOUNTED ON SAID ECCENTRIC PORTION OF SAID CRANKSHAFT, SAID ROTOR ROTATING RELATIVE TO SAID CRANKSHAFT IN AN OPPOSITE DIRECTION THEREFROM AND SHAPED SO AS TO FORM WITH SAID STATOR A PLURALITY OF CHAMBERS; A PLURALITY OF RADIAL SEGMENTS CARRIED BY SAID STATOR; MEANS TO BIAS SAID SEGMENTS INTO ENGAGEMENT WITH THE OUTER SURFACE OF THE LOBES OF SAID ROTOR TO DEFINE SAID CHAMBERS; A FIRST OIL PASSAGE FORMED IN AT LEAST ONE COLD LOBE OF SAID ROTOR; AND A SECOND OIL PASSAGE FORMED IN SAID CRANKSHAFT AND COMMUNICATING WITH AN EXTERNAL OIL SOURCE; SAID PASSAGES BEING LOCATED SO, AND SAID RELATIVE ROTATION BEING SUCH, THAT WHEN SAD FIRST OIL PASSAGE PASSES IN FRONT OF EACH OF SAID RADIAL SEGMENTS, SAID FIRST AND SECOND PASSAGES REGISTER TO LUBRICATE SAID SEGMENTS.
Claim 2
Dependent Claim
146 words
A ROTARY ENGINE COMPRISING A LOBED STATOR; A ROTATABLE CRANKSHAFT HAVING AN ECCENTRIC PORTION; A LOBED ROTOR MOUNTED ON SAID ECCENTRIC PORTION OF SAID CRANKSHAFT, SAID ROTOR ROTATING RELATIVE TO SAID CRANKSHAFT IN AN OPPOSITE DIRECTION THEREFROM AND SHAPED SO AS TO FORM WITH SAID STATOR A PLURALITY OF CHAMBERS; A PLURALITY OF RADIAL SEGMENTS CARRIED BY SAID STATOR; MEANS TO BIAS SAID SEGMENTS INTO ENGAGEMENT WITH THE OUTER SURFACE OF THE LOBES OF SAID ROTOR TO DEFINE SAID CHAMBERS; A FIRST OIL PASSAGE FORMED IN AT LEAST ONE COLD LOBE OF SAID ROTOR; AND A SECOND OIL PASSAGE FORMED IN SAID CRANKSHAFT AND COMMUNICATING WITH AN EXTERNAL OIL SOURCE; SAID PASSAGES BEING LOCATED SO, AND SAID RELATIVE ROTATION BEING SUCH, THAT WHEN SAD FIRST OIL PASSAGE PASSES IN FRONT OF EACH OF SAID RADIAL SEGMENTS, SAID FIRST AND SECOND PASSAGES REGISTER TO LUBRICATE SAID SEGMENTS.
References Cited (Backward Citations)
US2050533A
Cited
US2227740A
Cited
US2476383A
Cited
US2648952A
Cited
US3082747A
Cited
DE1145428B
Cited
US3193186A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |