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. 07, 1987
Filed:
Jan. 02, 1986
Applicant:
Inventor:
Takeo Kushida, Higashi-Matsuyama, JP;
Assignee:
Diesel Kiki Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
137-1 ; 251 75 ; 25112916 ; 2511291 ; 25112906 ; 310328 ;
Abstract
A high speed electromagnetic valve is disclosed in which an electromagnetic actuator is provided in which an armature is moved relative to a stator having excitation coils, and a valve rod fixed to the armature and a holding means capable of holding the armature and the valve rod according to electric current. This holding means is formed in such way that a plurality of piezoelectric elements are sandwiched in a plurality of electrode plates, and holding power by the piezoelectric operation is generated to hold the armature and the valve rod.