US4762098A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating device for overhead valve engine
Assignee: Kawasaki Motors Ltd
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Filing: 1987-07-29
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Granted: 1988-08-09
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Expires: 2007-07-29
Abstract
Abstract A lubricating device for an overhead valve engine having a rocker arm chamber provided with a valve gear, a crank chamber provided with a valve driving gear, and valve drive push rods disposed between the valve gear and the valve driving gear. Provided are paths respectively communicating aforesaid crank chamber to aforesaid rocker arm chamber, aforesaid rocker arm chamber to aforesaid push rod chamber, and the bottom of aforesaid push rod chamber to aforesaid crank chamber through a bearing portion on a power takeoff side, or the bottom of aforesaid push rod chamber is communicated to aforesaid bearing portion of aforesaid power takeoff side with an outlet for breather gas in aforesaid push rod chamber.
Inventors
- 👤 Shinichi Tamba
- 👤 Hitoshi Yamamoto
- 👤 Akihito Shimizu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:04
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/02; F01L1/04; F01L1/06; F01M; F01M13/00; F01M9/00; F01M9/06; F02; F02B; F02B75/00; F02B75/02; F02B2075/022; F02B2075/027; F02F; F02F7/00; F02F7/006
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
84 words
A lubricating device for an overhead valve engine having a rocker arm chamber provided with a valve gear, a crank chamber provided with a valve driving gear, and valve drive push rods disposed between the valve gear and the valve driving gear, comprising: paths respectively communicating said crank chamber to said rocker arm chamber, said rocker arm chamber to said push rod chamber, and the bottom of said push rod chamber to said crank chamber through a bearing portion on a power takeoff side.
Claim 2
Dependent Claim
84 words
A lubricating device for an overhead valve engine having a rocker arm chamber provided with a valve gear, a crank chamber provided with a valve driving gear, and valve drive push rods disposed between the valve gear and the valve driving gear, comprising: paths respectively communicating said crank chamber to said rocker arm chamber, said rocker arm chamber to said push rod chamber, and the bottom of said push rod chamber to said crank chamber through a bearing portion on a power takeoff side.
Claim 3
Dependent Claim
24 words
A lubricating device for an overhead valve engine as claimed in claim 1, wherein said overhead valve engine is of an overhung crank type.
Claim 4
Dependent Claim
91 words
A lubricating device for an overhead valve engine having a rocker arm chamber provided with a valve gear, a crank chamber provided with a valve driving gear, a valve drive push rods disposed between the valve gear and the valve driving gear, comprising: paths respectively communicating said crank chamber to said rocker arm chamber, said rocker arm chamber to said push rod chamber, and the bottom of said push rod chamber to a bearing portion on a power takeoff side, and an outlet for breather gas in said push rod chamber.
Claim 5
Dependent Claim
91 words
A lubricating device for an overhead valve engine having a rocker arm chamber provided with a valve gear, a crank chamber provided with a valve driving gear, a valve drive push rods disposed between the valve gear and the valve driving gear, comprising: paths respectively communicating said crank chamber to said rocker arm chamber, said rocker arm chamber to said push rod chamber, and the bottom of said push rod chamber to a bearing portion on a power takeoff side, and an outlet for breather gas in said push rod chamber.
Claim 6
Dependent Claim
24 words
A lubricating device for an overhead valve engine as claimed in claim 3, wherein said overhead valve engine is of an overhung crank type.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-08-09 | 1992-02-08 | 1992-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-09 | 1996-02-08 | 1996-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-09 | 2000-02-08 | 2000-08-09 | $7700.00 | Window Closed / Lapsed |