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:
Apr. 20, 1976
Filed:
Nov. 27, 1974
Masahiko Nakada, Okazaki, JA;
Toyota Jidosha Kogyo Kabushiki Kaisha, Toyota, JA;
Abstract
A mixture gas heating device for the mixture gas to be introduced into an internal combustion engine, wherein there is provided a change-over flap valve in the vicinity of a mixture gas heating portion within a suction manifold. This change-over flap valve is adapted to switch exhaust gas passages from one to another in a manner that, when said valve is in its open position before the engine warm-up run, there is defined a gas passage, through which exhaust gases from an engine once impinge on the mixture gas heating portion of said suction manifold to be heated thereby, and then into an exhaust manifold, while there is defined another gas passage, through which exhaust gases from the engine is directly fed into the exhaust manifold, when said valve is in its closed position after the engine warm-up run.