US4535866A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Three-wheeled motor vehicle
Assignee: Honda Motor Co Ltd
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Filing: 1983-04-22
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Granted: 1985-08-20
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Expires: 2003-04-22
Abstract
Abstract A three-wheeled motor vehicle including one steerable front wheel, two rear wheels serving as driving wheels, a fuel tank disposed on an upper portion of a frame, a seat disposed behind the fuel tank, and an engine mounted below the fuel tank. The above engine is a water-cooled engine. A cylinder portion of the engine is disposed on the rear side in the longitudinal direction of a case portion of the engine which case portion underlies the cylinder portion, and a radiator is disposed within a space formed in front of the cylinder portion. By the above arrangement, a large space is ensured in front of the cylinder portion without the need to enlarge the longitudinal size of the three-wheeled motor vehicle, and cooling devices can be disposed within such space.
Inventors
- 👤 Mitsuo Shiga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:22
CPC Classifications
B; B62; B62K; B62K5/00; B62K5/02; B62K5/027; F; F01; F01P; F01P3/00; F01P3/18; F02; F02B; F02B61/00; F02B61/02; F02B75/00; F02B75/16
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
121 words
A three-wheeled motor vehicle including a frame, one steerable front wheel attached to said frame, two rear wheels attached to said frame and serving as drive wheels, a fuel tank mounted on an upper portion of said frame, a seat mounted on said frame behind said fuel tank, an engine mounted on a lower portion of said frame, said engine being a water cooled engine and comprising a cylinder portion comprising a cylinder head and cylinder block and a crankcase portion which underlies said cylinder portion, a transmission case integral with said crankcase portion having a transmission-containing portion forward of said crankcase portion, and a radiator being disposed within a space formed in front of said cylinder portion of said engine.
Claim 2
Dependent Claim
121 words
A three-wheeled motor vehicle including a frame, one steerable front wheel attached to said frame, two rear wheels attached to said frame and serving as drive wheels, a fuel tank mounted on an upper portion of said frame, a seat mounted on said frame behind said fuel tank, an engine mounted on a lower portion of said frame, said engine being a water cooled engine and comprising a cylinder portion comprising a cylinder head and cylinder block and a crankcase portion which underlies said cylinder portion, a transmission case integral with said crankcase portion having a transmission-containing portion forward of said crankcase portion, and a radiator being disposed within a space formed in front of said cylinder portion of said engine.
Claim 3
Dependent Claim
22 words
A three-wheeled motor vehicle according to claim 1 wherein said radiator is disposed above at least a portion of said transmission case.
Claim 4
Dependent Claim
17 words
A three-wheeled motor vehicle according to claim 1, wherein a cooling fan is disposed behind said radiator.
Claim 5
Dependent Claim
42 words
A three-wheeled motor vehicle according to claim 3, wherein said radiator and said cooling fan are covered with a cover so that cooling air is taken in from the front of said radiator and discharged from an opening formed behind said fan.
Claim 6
Dependent Claim
22 words
A three-wheeled motor vehicle according to claim 1, wherein the circumference and the front of said radiator are covered with a cover.
Claim 7
Dependent Claim
24 words
A three-wheeled motor vehicle according to claim 5, wherein said cover is opened upward in front of said radiator to take in cooling air.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-08-19 | 1989-02-18 | 1989-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-19 | 1993-02-18 | 1993-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-19 | 1997-02-18 | 1997-08-20 | $7700.00 | Window Closed / Lapsed |