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:
Jan. 01, 1980

Filed:

Mar. 27, 1978
Applicant:
Inventors:

Shizuo Yagi, Asaka, JP;

Hiroshi Kogure, Tokorozawa, JP;

Saburo Matsuoka, Wako, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02B / ; F02B / ;
U.S. Cl.
CPC ...
123 / ; 1231 / ; 1231 / ; 123 / ; 123 / ; 123 / ; 123 / ;
Abstract

The auxiliary combustion chamber of a four-cycle stratified-charge piston engine is divided into a primary cavity, and a secondary cavity provided with a baffle. The primary cavity receives a relatively rich mixture which passes into the secondary cavity, and the main combustion chamber receives a relatively lean mixture. The primary cavity is in communication with a spark plug. A long torch passage insert piece connects the primary cavity with the central portion of the main combustion chamber, and one or more short torch passages connect the secondary cavity with a peripheral portion of the main combustion chamber. The purpose is to reduce emission of NO.sub.x without adversely affecting emissions of CO and HC, and to improve fuel economy.


Find Patent Forward Citations

Yagi, Shizuo. (1980). Divided auxiliary combustion chamber for internal combustion engine (U.S. Patent No. 4181102). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4181102

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

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