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:
Aug. 22, 2006
Filed:
Jul. 18, 2003
Takanobu Ichihara, Hitachinaka, JP;
Masami Nagano, Hitachinaka, JP;
Kozo Katogi, Hitachi, JP;
Hiroaki Saeki, Hitachinaka, JP;
Takanobu Ichihara, Hitachinaka, JP;
Masami Nagano, Hitachinaka, JP;
Kozo Katogi, Hitachi, JP;
Hiroaki Saeki, Hitachinaka, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi Car Engineering Co., Ltd., Hitachinaka, JP;
Abstract
To improve startability and reduce the amount of HC emission at start-up with the aid of a construction where vaporized fuel is supplied to the bypass passage that bypasses the main passage. The main air control valveis installed near the intake portof the main air passageand the main air control valve is closed or throttled at the time of start-up or additional injection from the port injection valveis given in the beginning of start-up cranking. With a apparatus equipped with the main air control valve, vaporization of the fuel injected from the auxiliary injection valveis facilitated in the beginning of cranking and also intake delay of the vaporized fuel is reduced, and hence startability can improve and the amount of HC emission at the time of start-up can decrease. With a apparatus where additional injection is given from the port injection valvein the beginning of cranking, fuel supply into the cylinder is achieved quickly, and hence startability can improve and the amount of HC emission at the time of start-up can decrease.