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:
Nov. 15, 1988
Filed:
Apr. 01, 1987
Applicant:
Inventors:
Takashi Iwanaga, Kariya, JP;
Hideya Fujisawa, Kariya, JP;
Masaaki Kato, Kariya, JP;
Masahiko Miyaki, Obu, JP;
Assignee:
Nippondenso Co., Ltd., Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M / ;
U.S. Cl.
CPC ...
123446 ; 123467 ; 123458 ; 123506 ;
Abstract
A fuel injection control device in which a needle valve of a fuel injector is opened and closed by two valves. The fuel injector has a pressure control chamber and a fuel chamber, and the needle valve opens a fuel injection aperture to inject the fuel in the fuel chamber to the engine when a pressure in the pressure control chamber is relatively high. One valve is provided in a passage which connects a pump, the pressure control chamber, and a reservoir, and the other valve is provided in a passage which connects the pump, the fuel chamber, and the reservoir.