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:
May. 30, 1978
Filed:
Jan. 15, 1976
Keiichi Okabayashi, Miyoshi, JA;
Toyota Jidosha Kogyo Kabushiki Kaisha, Toyota, JA;
Abstract
An improvement in a vacuum advancer which controls the ignition timing of a gasoline engine responding to an engine load comprises a first pipe which is connected between a port in a wall of a carburetor adjacent a throttle valve and a diaphragm chamber of a distributor, a second pipe provided between another port in the wall of a carburetor adjacent the throttle valve and the first pipe, the second pipe being provided with a heat sensitive valve and a restricted orifice that make the second pipe communicable with the first pipe after the engine has been warmed. Thus the negative pressure therein escapes through the second pipe for said port in a wall of a carburetor adjacent the throttle valve so that the advance angle for the distributor becomes lagged, and the engine is prevented from overheat to the result that suppress generation of NO.sub.x in the exhaust.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile