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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 8770160 B1

PDFFull Text
Date of Patent:
Jul. 08, 2014

Filed:

Sep. 26, 2008

Engine for small vehicle

Applicants:

Hayato Maehara, Saitama, JP;

Yasushi Fujimoto, Saitama, JP;

Inventors:

Hayato Maehara, Saitama, JP;

Yasushi Fujimoto, Saitama, JP;

Assignee:

Honda Motor Co., Ltd., Tokyo, JP;

Attorney:

Westerman, Hattori, Daniels & Adrian, LLP

Primary Examiner:

Thomas Denion

Assistant Examiner:

Daniel Bernstein

Int. Cl.
CPC ...
F01L 9/02 (2006.01); F01L 1/14 (2006.01); F02B 67/04 (2006.01); F02B 61/02 (2006.01); F01L 1/18 (2006.01); F16D 25/0638 (2006.01); F16D 25/10 (2006.01); F16D 21/06 (2006.01); F01L 13/00 (2006.01); F01L 1/02 (2006.01); F01L 1/053 (2006.01); F16H 61/00 (2006.01); F01L 1/20 (2006.01);
U.S. Cl.
CPC ...
F01L 1/182 (2013.01); F01L 2001/0537 (2013.01); F16H 61/0003 (2013.01); F01L 2810/02 (2013.01); F01L 1/143 (2013.01); F02B 67/04 (2013.01); F01L 1/20 (2013.01); F02B 61/02 (2013.01); F01L 2105/00 (2013.01); F16D 25/0638 (2013.01); F16D 25/10 (2013.01); F16D 21/06 (2013.01); F16D 2021/0661 (2013.01); F01L 13/0005 (2013.01); F01L 1/022 (2013.01); F01L 2001/0535 (2013.01);
Abstract

There is provided an engine for a small vehicle where driven sprockets, around which a cam chain for transmitting power from a crankshaft is wound, are provided at one end of camshafts that form a part of a valve system provided with hydraulic valve-operation mode changing mechanisms; and a valve-moving hydraulic pressure control device, which controls hydraulic pressure applied to the valve-operation mode changing mechanisms, is provided in the engine body. In the engine, it is possible to increase the degree of freedom in disposing the oil passage between the valve-operation mode changing mechanism and the valve-moving hydraulic pressure control device while avoiding the increase in the number of parts and assembly man-hours. A valve-moving hydraulic pressure control device is mounted on the side surface of the engine body on the side opposite to a cam chain in an axial direction of a camshaft.

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