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:
Oct. 03, 1978
Filed:
Aug. 30, 1976
Shuichi Yamazaki, Kamifukuoka, JP;
Ikuo Kajitani, Niiza, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
An exhaust reaction chamber assembly is provided for a four-cylinder in-line internal combustion engine having two pairs of exhaust ports, the ports in each pair being closely spaced. The assembly includes an exhaust manifold having two preliminary reaction chambers each connected to receive exhaust gases from one of said pairs of exhaust ports, respectively. A main reaction chamber is provided within the exhaust manifold and two curved passages each connect one of the preliminary reaction chambers to the main reaction chamber, respectively, each passage curving for about 90.degree.. The passages have aligned outlets so that the exhaust gases from each passage are directed toward the other passage. The gases are then directed perpendicular to the inlet in an elongated direction through the main reaction chamber. In one embodiment, the aligned outlets are spaced apart within the main reaction chamber, and in a modification the aligned outlets are formed in a single pipe having a side window opening into the main reaction chamber. A restriction may be placed between each passage and the preliminary reaction chamber to which it is connected, in order to increase residence time.