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:
Jul. 01, 1986
Filed:
May. 21, 1982
Applicant:
Inventor:
Seishi Yasuhara, Yokohama, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M / ;
U.S. Cl.
CPC ...
123458 ; 1231 / ; 123501 ;
Abstract
A fuel cut-off valve in the fuel injection pump of an internal combustion engine is provided with a device for facilitating the opening of the valve against pressure forces normally biasing the valve closed. A pair of solenoids may be provided, with both being used to open the valve and only one to hold the valve open. Alternately, a single solenoid may be supplied with a large quantity of power to open the valve, and considerably small power to hold the valve open. In a second alternative, an auxiliary passageway is formed in the valve, and a pressure relief valve normally blocking the auxiliary passageway can be opened to alleviate the pressure on the first valve.