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:
Dec. 27, 2022

Filed:

Aug. 27, 2018
Applicant:

Eagle Industry Co., Ltd., Tokyo, JP;

Inventors:

Kohei Fukudome, Tokyo, JP;

Daichi Kurihara, Tokyo, JP;

Keigo Shirafuji, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 31/06 (2006.01); F04B 27/18 (2006.01);
U.S. Cl.
CPC ...
F16K 31/0675 (2013.01); F04B 27/1804 (2013.01); F16K 31/0603 (2013.01); F16K 31/0693 (2013.01); F04B 2027/185 (2013.01); F04B 2027/1827 (2013.01); F04B 2027/1854 (2013.01); F04B 2027/1859 (2013.01);
Abstract

An electromagnetic valve has a valve housing; a valve body disposed inside the valve housing and movable in a reciprocating manner; an urging member configured to urge the valve body in one direction; and a drive device which is connected to the valve housing and applies a drive force to the valve body. A drive rod of the drive device includes a guide portion which faces an inner peripheral surface of a fixed iron core such that a movement of the drive rod is guided in an axial direction and a groove portion which is recessed in an inward radial direction from the guide portion and the groove portion is continuously formed from an inside of the valve housing to an inside of a movable iron core.


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