Patent US4031877A successfully refreshed from Google Patents.
US4031877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine lubricating oil pump
Assignee: Kawasaki Motors Ltd
•
Filing: 1976-02-19
•
Granted: 1977-06-28
•
Expires: 1996-02-19
Abstract
Abstract Air-cooled two stroke internal combustion engine having a cooling air blower driven by the engine and a lubricating oil pump for supplying lubricating oil to the engine, said lubricating oil pump being housed in the hub portion of the blower.
Inventors
- 👤 Tetsuzo Fujikawa
- 👤 Kichiji Misawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:43
CPC Classifications
F; F01; F01M; F01M1/00; F01M1/02; F01P; F01P5/00; F01P5/02; F01P5/04; F04; F04B; F04B19/00; F04B19/02; F02; F02B; F02B75/00; F02B75/02; F02B2075/022; F02B2075/025
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
80 words
Internal combustion engine comprising an engine portion having a power output member, cooling blower means driven by said power output member of the engine portion for producing flow of engine cooling air, said blower means having fairing means at hub portion thereof, lubricating oil pump means disposed in said fairing means of the blower means and driven by said power output member of the engine portion to provide supply of lubricating oil to the engine portion as the engine rotates.
Claim 2
Dependent Claim
80 words
Internal combustion engine comprising an engine portion having a power output member, cooling blower means driven by said power output member of the engine portion for producing flow of engine cooling air, said blower means having fairing means at hub portion thereof, lubricating oil pump means disposed in said fairing means of the blower means and driven by said power output member of the engine portion to provide supply of lubricating oil to the engine portion as the engine rotates.
Claim 3
Dependent Claim
20 words
Internal combustion engine in accordance with claim 1 in which said lubricating oil pump means is of a plunger type.
Claim 4
Dependent Claim
29 words
Internal combustion engine in accordance with claim 2 in which said oil pump means include means for adjusting pump stroke to change amount of output in each pumping cycle.
Claim 5
Dependent Claim
45 words
Internal combustion engine in accordance with claim 1 in which said blower means includes a fan having a driving shaft which is connected with the engine power output member and said oil pump means is drivingly connected with the driving shaft to be driven thereby.
Claim 6
Dependent Claim
30 words
Internal combustion engine in accordance with claim 1 in which said blower means includes a casing which stationarily carries said fairing means in which said oil pump means is housed.
References Cited (Backward Citations)
US1913199A
Cited
US2568473A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-06-27 | 1980-12-27 | 1981-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-27 | 1984-12-27 | 1985-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-27 | 1988-12-27 | 1989-06-28 | $7700.00 | Window Closed / Lapsed |