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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 4438736 B1

PDFFull Text
Date of Patent:
Mar. 27, 1984

Filed:

Mar. 09, 1982

Variable valve timing arrangement with automatic valve clearance

Applicant:
Inventors:

Seinosuke Hara, Yokosuka, JP;

Hiromichi Ofuji, Yokosuka, JP;

Takaharu Gotou, Yokosuka, JP;

Assignee:

Nissan Motor Co., Ltd., Kanagawa, JP;

Attorney:

Lowe, King, Price & Becker

Primary Examiner:

Ira S Lazarus

Assistant Examiner:

R S Bailey

Int. Cl.
CPC ...
F01L / ;
U.S. Cl.
CPC ...
123 9016 ; 123 9027 ; 123 9046 ;
Abstract

A variable valve timing system has a lever pivoted at one end on a piston reciprocally disposed in a cylinder and the other end in engagement with a poppet valve. A first cam cooperates with a second bell crank lever like cam which is eccentrically mounted on a rotatable shaft. Rotation of this shaft moves the second cam toward or away from the engine proper to vary the movement of the lever with which the second cam cooperates. The piston is biased out of the cylinder by a spring and maintained in position by hydraulic fluid introduced into the cylinder through a one way flow arrangement.

Find Patent Forward Citations

Hara, Seinosuke. (1984). Variable valve timing arrangement with automatic valve clearance (U.S. Patent No. 4438736). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4438736

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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