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. 15, 1976
Filed:
Sep. 12, 1974
Applicant:
Inventors:
Noboru Matumoto, Toyota, JA;
Takao Nonoyama, Toyota, JA;
Tutomu Tomita, Okazaki, JA;
Yukio Suzuki, Toyota, JA;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
F02M / ; F02B / ;
U.S. Cl.
CPC ...
60278 ; 60290 ; 123 / ; 1231 / ; 1231 / ; 1231 / ; 1231 / ;
Abstract
An exhaust gas purifying system for use in an internal combustion engine for controlling the air injection into an exhaust manifold and the circulation of exhaust gases from the exhaust manifold to a suction pipe, due to a negative pressure prevailing in the suction pipe, in which the negative pressure varies depending on the running conditions of the engine.