US3152584A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diesel engines
Assignee: Individual
•
Filing: 1963-03-04
•
Granted: 1964-10-13
•
Expires: 1983-03-04
Abstract
No abstract record available.
Inventors
- 👤 Michael I Petroff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:37
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/12; F02; F02M; F02M63/00; F02M2700/00; F02M2700/05; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18288
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
233 words
THE METHOD OF IMPROVING PERFORMANCE OF A DIESEL ENGINE HAVING A PISTON OPERATING ON A CRANKSHAFT TO RECIPROCATE IN A CYLINDER, A FUEL PUMP CONNECTED TO DELIVER FUEL TO SAID CYLINDER, A CAMSHAFT, A CAM FIXED ON SAID CAMSHAFT FOR ROTATION THEREWITH AND HAVING A CAM LOBE THEREON, SAID CAM LOBE HAVING A BEGINNING OF RISE, A MAXIMUM POINT OF RISE AND AN END OF RISE, A CAM FOLLOWER IN ENGAGEMENT WITH SAID CAM, AND A FUEL PUMP OPERATOR ACTUATED BY MOVEMENT OF SAID CAM FOLLOWER, SAID CAMSHAFT BEING GEARED TO SAID CRANKSHAFT AND SAID CAM BEING FIXED TO SAID CAMSHAFT SUCH THAT SAID CAM ROLLER ENGAGES THE BEGINNING OF RISE OF SAID CAM PRIOR TO THE COMPLETION OF THE COMPRESSION STROKE OF SAID PISTON, THE METHOD COMPRISING: DECREASING THE ANGULAR WIDTH OF SAID CAM LOBE BETWEEN THE BEGINNING OF RISE OF SAID CAM LOBE AND THE POINT OF MAXIMUM RISE THEREOF WHILE RETAINING THE SAME ANGULAR POSITION OF THE POINT OF MAXIMUM RISE OF SAID CAM LOBE BY A GIVEN RATIO; DECREASING THE RADIAL ANGLE OF SAID CAM LOBE BETWEEN THE POINT OF MAXIMUM RISE OF SAID LOBE AND THE END OF RISE OF SAID LOBE BY THE SAME RATIO; DECREASING THE MAXIMUM HEIGHT OF SAID CAM LOBE BY A GIVEN PROPORTION; AND MULTIPLYING THE MOVEMENT OF THE FUEL PUMP OPERATOR PRODUCED BY THE CAM FOLLOWER BY THE RECIPROCAL OF GIVEN PROPORTION.
Claim 2
Independent Claim
233 words
THE METHOD OF IMPROVING PERFORMANCE OF A DIESEL ENGINE HAVING A PISTON OPERATING ON A CRANKSHAFT TO RECIPROCATE IN A CYLINDER, A FUEL PUMP CONNECTED TO DELIVER FUEL TO SAID CYLINDER, A CAMSHAFT, A CAM FIXED ON SAID CAMSHAFT FOR ROTATION THEREWITH AND HAVING A CAM LOBE THEREON, SAID CAM LOBE HAVING A BEGINNING OF RISE, A MAXIMUM POINT OF RISE AND AN END OF RISE, A CAM FOLLOWER IN ENGAGEMENT WITH SAID CAM, AND A FUEL PUMP OPERATOR ACTUATED BY MOVEMENT OF SAID CAM FOLLOWER, SAID CAMSHAFT BEING GEARED TO SAID CRANKSHAFT AND SAID CAM BEING FIXED TO SAID CAMSHAFT SUCH THAT SAID CAM ROLLER ENGAGES THE BEGINNING OF RISE OF SAID CAM PRIOR TO THE COMPLETION OF THE COMPRESSION STROKE OF SAID PISTON, THE METHOD COMPRISING: DECREASING THE ANGULAR WIDTH OF SAID CAM LOBE BETWEEN THE BEGINNING OF RISE OF SAID CAM LOBE AND THE POINT OF MAXIMUM RISE THEREOF WHILE RETAINING THE SAME ANGULAR POSITION OF THE POINT OF MAXIMUM RISE OF SAID CAM LOBE BY A GIVEN RATIO; DECREASING THE RADIAL ANGLE OF SAID CAM LOBE BETWEEN THE POINT OF MAXIMUM RISE OF SAID LOBE AND THE END OF RISE OF SAID LOBE BY THE SAME RATIO; DECREASING THE MAXIMUM HEIGHT OF SAID CAM LOBE BY A GIVEN PROPORTION; AND MULTIPLYING THE MOVEMENT OF THE FUEL PUMP OPERATOR PRODUCED BY THE CAM FOLLOWER BY THE RECIPROCAL OF GIVEN PROPORTION.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-10-13 | 1968-04-13 | 1968-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-13 | 1972-04-13 | 1972-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-13 | 1976-04-13 | 1976-10-13 | $7700.00 | Window Closed / Lapsed |