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.

Date of Patent:
Dec. 14, 1993

Filed:

Mar. 06, 1992
Applicant:
Inventors:

Masatoshi Suzuki, Urawa, JP;

Takaaki Tsukui, Tokyo, JP;

Takashi Ichimura, Tokorozawa, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01L / ; F02B / ; F02P / ;
U.S. Cl.
CPC ...
123310 ; 123 9016 ; 123308 ; 123315 ; 123432 ; 1231935 ; 123638 ; 123661 ;
Abstract

A four-stroke cycle internal-combustion engine having two large- and small-diameter intake valves and two large- and small-diameter exhaust valves in one cylinder and mounted with a valve-operating mechanism on either of the intake valve side and the exhaust valve side. Each valve-operating mechanism comprises a first valve-operating cam of a narrow total valve-opening angle and a low lift, a second valve-operating cam of a wide total valve-opening angle and a high lift, a rocker arm for the small-diameter valve in direct engagement with the first valve-operating cam, a rocker arm for the large-diameter valve, and a connecting means capable of simultaneously operatively connecting the second valve-operating cam with the rocker arm for the small-diameter valve and the rocker arm for the large-diameter valve. In each cylinder at least three spark plugs are mounted. The combustion chamber is formed high on one side and low on the other side.


Find Patent Forward Citations

Quick Actions:

Suzuki, Masatoshi. (1993). Four-stroke cycle internal-combustion engine (U.S. Patent No. 5269270). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5269270

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

Loading…