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:
Dec. 13, 1977
Filed:
Jun. 21, 1974
Tadahide Toda, Susono, JA;
Toshiaki Konomi, Susono, JA;
Toyota Jidosha Kogyo Kabushiki Kaisha, Toyota, JA;
Abstract
A fuel system for an internal combustion engine comprises a pair of carburetors provided one each on the exhaust and intake side of the engine. The fuel-air mixture from the first carburetor is heated by exhaust gas before being introduced into an intake manifold through a passage within a cylinder head. Throttle valves are associated with the respective carburetors and are controlled in an interlocked manner so as to open the throttle valve associated with the first carburetor while maintaining the other throttle valve closed during a partial load operation, and to open the throttle valve associated with the second carburetor to supply the air enriched mixture to the cylinders while closing the first mentioned throttle valve during a full load operation. Alternatively, a combined use of supply from the first and second carburetors concurrently may be chosen.