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. 06, 1994
Filed:
Jul. 22, 1993
Toshio Yamaguchi, Higashimatsuyama, JP;
Atsushi Ueda, Higashimatsuyama, JP;
Zexel Corporation, Tokyo, JP;
Abstract
A solenoid valve is installed between a high-pressure side leading to a compressor of a fuel-injection pump and a low-pressure side to adjust the fluidic connection therebetween. This valve comprises a valve body, an armature, a solenoid which moves the armature, and a return spring. In the solenoid valve, a passage connecting an armature chamber and a balance chamber is formed around the edge of the opposite side of the armature, a rising-pressure preventing passage is provided to prevent an increase in pressure in the armature chamber, and compensation mechanism is provided in the junction area between the different members which accommodate the valve body, to thereby absorb a gap or misalignment between the sliding holes of the different members.