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:
Mar. 20, 1979
Filed:
Mar. 23, 1977
Toru Hatanaka, Urawa, JP;
Yoshitoku Iizuka, Toda, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
An internal combustion piston engine has a prechamber or auxiliary chamber associated with each main combustion chamber and connected thereto by a plurality of torch openings. Ignition of a relatively rich mixture in the auxiliary chamber causes flames to be projected through the torch openings to ignite the relatively lean mixture in the main combustion chamber. At least three torch openings are provided in the bottom wall of the auxiliary chamber; one is directed toward the main intake valve in the main combustion chamber, another is directed toward the exhaust valve in the main combustion chamber, and a third directs a flame toward a region of the main combustion chamber remote from both valves. Additional torch openings are employed for larger engines. The relative positions of the torch openings are defined as well as their total cross sectional area compared to the volume of the auxiliary combustion chamber.