US2811145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of operating a compression ignition internal combustion engine
Assignee: SINCLAIR RES LAB Inc
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Filing: 1956-02-28
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Granted: 1957-10-29
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Expires: 1976-02-28
Abstract
No abstract record available.
Inventors
- 👤 Hobert D Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:38
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/04; C10L1/08; F; F02; F02B; F02B3/00; F02B3/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
IN THE OPERATION OF INTERNAL COMBUSTION ENGINES OF THE COMPRESSION IGNITION TYPE, THE IMPROVEMENT WHICH COMPRISES BURNING A NORMALLY LIQUID PRIMARY FUEL HAVING A CETANE NUMBER NOT GREATER THAN ABOUT 40, SAID OPERATION BEING EFFECTED WHILE INDUCTING WITH THE AIR SUPPLY ABUT 1 TO 20 PERCENT BY VOLUME BASED ON THE PRIMARY FUEL OF A RELAVIVELY HIGH CETANE NUMBER SECONDARY FUEL GENERALLY CHARACTERIZED BY SUBSTANTIALLY STRAIGHTCHAIN, PARAFFINIC STRUCTURE AND HAVING A CETANE NUMBER OF AT LEAST ABOUT 45.
Claim 2
Dependent Claim
78 words
IN THE OPERATION OF INTERNAL COMBUSTION ENGINES OF THE COMPRESSION IGNITION TYPE, THE IMPROVEMENT WHICH COMPRISES BURNING A NORMALLY LIQUID PRIMARY FUEL HAVING A CETANE NUMBER NOT GREATER THAN ABOUT 40, SAID OPERATION BEING EFFECTED WHILE INDUCTING WITH THE AIR SUPPLY ABUT 1 TO 20 PERCENT BY VOLUME BASED ON THE PRIMARY FUEL OF A RELAVIVELY HIGH CETANE NUMBER SECONDARY FUEL GENERALLY CHARACTERIZED BY SUBSTANTIALLY STRAIGHTCHAIN, PARAFFINIC STRUCTURE AND HAVING A CETANE NUMBER OF AT LEAST ABOUT 45.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-28 | 1961-04-29 | 1961-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-28 | 1965-04-29 | 1965-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-28 | 1969-04-29 | 1969-10-29 | $7700.00 | Window Closed / Lapsed |