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:
Jan. 03, 1978
Filed:
Feb. 19, 1975
Takao Suzuki, Shizuoka, JA;
Toyota Jidosha Kogyo Kabushiki Kaisha, Toyota, JA;
Abstract
An internal combustion engine provided with a precombustion chamber which utilizes a stratified charge type combustion process and is of a spark ignition type. This engine includes a main combustion chamber confined between the head of a piston, which is reciprocably fitted in a cylinder and one end wall of said cylinder a precombustion chamber defined in the head of said cylinder above said main combustion chamber and provided with an ignition plug and a fuel injection nozzle, a transer passage communicating said main combustion chamber with said precombustion chamber and an air intake port communicated through an air intake valve with said main combustion chamber. This precombustion chamber has an oval-shape in every section taken along a longitudinal axis thereof and incorporates many considerations such as the direction and cross sectional area of the transfer passage and the volume of the precombustion chamber as well as the direction of the fuel injection nozzle, thereby reducing the amount of NOx contained in exhaust gases from the engine.