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.

Date of Patent:
Jul. 02, 2002

Filed:

Oct. 25, 2000
Applicant:
Inventors:

Kouichi Ikoma, Saitama-ken, JP;

Yoshinori Onohara, Saitama-ken, JP;

Osamu Suzuki, Saitama-ken, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 3/312 ; F01L 9/04 ;
U.S. Cl.
CPC ...
H02K 3/312 ; F01L 9/04 ;
Abstract

There is provided a provide a solenoid actuator which is capable of smoothly driving a driven member, with enhanced durability, and at the same time permits the stroke of the driven member to be changed with ease. A solenoid actuator drives a valve by an electromagnetic force such that the valve performs reciprocating motion. An armature is connected to the valve, for performing reciprocating motion in accordance with energization and deenergization of at least one electromagnet to thereby drive the valve such that the valve performs the reciprocating motion. The armature has two end faces extending in parallel with each other in a direction orthogonal to a direction of the reciprocating motion thereof. Two guide joints have respective two guide surface opposed to the two end faces of the armature, each formed with two armature guides. The two guide joints slidably guide the reciprocating motion of the armature in a state of the two end faces of the armature being in line contact with the four armature guides of the two guide surfaces thereof.


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