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.:
Date of Patent:
Sep. 26, 1978
Filed:
May. 20, 1977
Hiromichi Yanagihara, Susono, JP;
Nobuo Habu, Susono, JP;
Toyota Jidosha Kogyo Kabushiki Kaisha, Toyota, JP;
Abstract
Disclosed is an internal combustion engine comprising a main chamber and an auxiliary chamber which are interconnected with each other via a connecting passage. An annular raised portion is formed in the inner wall of the auxiliary chamber so as to divide the auxiliary chamber into a first auxiliary chamber and a second auxiliary chamber. The connecting passage is tangentially connected to the second auxiliary chamber for creating a strong swirl motion in the first auxiliary chamber. This strong swirl motion causes a secondary swirl motion in a portion of the recess, which is located at a position opposite to the inner wall to which the connecting passage is tangentially connected with respect to the axis of the auxiliary chamber. The nozzle of a fuel injector is disposed in the auxiliary chamber so as to be directed to the recess portion for forming a rich air-fuel mixture therein. The spark gap of a spark plug is located in the recess portion. An additional connecting passage communicating the recess portion with the main chamber is formed in the cylinder head and is tangentially connected to the inner wall of the recess portion for strengthening the secondary swirl motion.