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:
Apr. 24, 2001
Filed:
May. 25, 1999
Applicant:
Inventors:
Assignee:
NOK Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
F16K 3/102 ;
U.S. Cl.
CPC ...
F16K 3/102 ;
Abstract
The solenoid valve (,) has an armature chamber (,) communicated with the outlets (,) of the valve to receive feed of fluid. The fluid in the chamber (,) is drained through drain passages (,) which are arranged to open into the chamber (,) at a location radially outwardly offset from the axis of the valve. The flow of fluid flowing into the chamber (,) is directly transferred to the drain passages (,) to thereby wash ferrous particles away from the magnetic gap to self-clean the gap each time the valve is opened. A spacer (,) made of a non-magnetizable material covers the upper end face of the armature (,) to prevent accumulation of ferrous particles.