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:
Jun. 23, 1987
Filed:
Jul. 22, 1986
Applicant:
Inventors:
Assignee:
Mazda Motor Corporation, Hiroshima, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N / ;
U.S. Cl.
CPC ...
60293 ;
Abstract
A secondary air supply system for an engine exhaust system in which the secondary air is drawn to the engine exhaust passage under the suction pressure produced in the exhaust passage. The secondary air supply system includes a non-return valve connected with the engine exhaust passage and an expansion chamber connected with the non-return valve through an elongated connecting passage. The expansion chamber is formed in a casing and the non-return valve is located in a valve chamber formed in the casing and separated from the expansion chamber by a partition wall. The connecting passage is formed by a pipe extending in the expansion chamber from the partition wall.