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:
Sep. 26, 1978
Filed:
Feb. 02, 1977
Haruhiko Saito, Nagoya, JP;
Toyota Jidosha Kogyo Kabushiki Kaisha, Toyota, JP;
Abstract
Disclosed is an exhaust gas recirculation apparatus for an internal combustion engine, which has a vacuum operated flow control valve arranged on pipe means connecting the exhaust manifold of the engine with the intake manifold of the engine. When the throttle valve is opened from its idle position during the operation of the engine, the flow control valve is opened in order to recirculate exhaust gas from the exhaust manifold to the intake manifold. The apparatus further has means for opening the flow control valve when so-called 'dieseling' takes place after the operation of the engine is stopped. The exhaust gas due to the dieseling can be recirculated and, thus, the dieseling is instantly stopped.