Patent US4546843A successfully refreshed from Google Patents.
US4546843A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling system
Assignee: Honda Motor Co Ltd
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Filing: 1983-08-31
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Granted: 1985-10-15
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Expires: 2003-08-31
Abstract
Abstract A system for cooling the engine compartment and for providing clean air to the air cleaner of a motorized cycle having a body cover, including an engine fan, a fan cover extending between the fan and a head cover surrounding the cylinder head, and a vent hole in the shroud formed by the fan cover and the head cover directing the air flow induced by the fan, after it has been used to cool the cylinder head, into the engine compartment defined by the body cover and towards the air cleaner intake port.
Inventors
- 👤 Yutaka Koinuma
- 👤 Yasuo Ikenoya
- 👤 Akira Hayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:27
CPC Classifications
B; B62; B62M; B62M7/00; B62M7/12; B62J; B62J50/00; B62J50/30; F; F01; F01P; F01P1/00; F01P1/02; F01P11/00; F01P11/12; B62K; B62K2202/00; F02; F02B; F02B61/00; F02B61/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
87 words
A cooling system for an engine compartment of a motorized cycle having a body cover and an air cooled engine with a cylinder head within the body cover, and an air cleaner having an intake port thereto, comprising a fan mounted on the engine and driven thereby; a shroud mounted on the engine provided so as to surround the cylinder head and said fan; and a vent hole formed at the upper end of said shroud having an opening facing the intake port of the air cleaner.
Claim 2
Dependent Claim
87 words
A cooling system for an engine compartment of a motorized cycle having a body cover and an air cooled engine with a cylinder head within the body cover, and an air cleaner having an intake port thereto, comprising a fan mounted on the engine and driven thereby; a shroud mounted on the engine provided so as to surround the cylinder head and said fan; and a vent hole formed at the upper end of said shroud having an opening facing the intake port of the air cleaner.
Claim 3
Dependent Claim
23 words
The cooling system of claim 1 wherein the air cleaner intake port is located at the same elevation as said vent hole opening.
Claim 4
Dependent Claim
90 words
A motorized cycle, comprising a body; a body cover; an air cooled engine mounted within said body cover and having a cylinder head, an air cleaner intake port, and a crankshaft extension; a fan fixed to said crankshaft extension for rotation therewith; a shroud fixed to said engine surrounding said cylinder head and said shroud having a hole at the top of the cylinder head; and a vent hole formed at the top of said shroud beside said shroud hole, said vent hole opening towards said air cleaner intake port.
Claim 5
Dependent Claim
90 words
A motorized cycle, comprising a body; a body cover; an air cooled engine mounted within said body cover and having a cylinder head, an air cleaner intake port, and a crankshaft extension; a fan fixed to said crankshaft extension for rotation therewith; a shroud fixed to said engine surrounding said cylinder head and said shroud having a hole at the top of the cylinder head; and a vent hole formed at the top of said shroud beside said shroud hole, said vent hole opening towards said air cleaner intake port.
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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) | 1988-10-14 | 1989-04-15 | 1989-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-10-14 | 1993-04-15 | 1993-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-10-14 | 1997-04-15 | 1997-10-15 | $7700.00 | Window Closed / Lapsed |