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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.:

US 10352475 B1

PDFFull Text
Date of Patent:
Jul. 16, 2019

Filed:

Apr. 05, 2018

Electrically operated valve

Applicant:

Fujikoki Corporation, Tokyo, JP;

Inventors:

Satoshi Uehara, Tokyo, JP;

Bunta Narukawa, Tokyo, JP;

Assignee:

FUJIKOKI CORPORATION, Tokyo, JP;

Attorney:

Bacon & Thomas, PLLC

Primary Examiner:

Matthew W Jellett

Int. Cl.
CPC ...
F16K 31/06 (2006.01); F16K 37/00 (2006.01); F16K 31/04 (2006.01); F25B 41/06 (2006.01); H02K 5/128 (2006.01); H02K 7/00 (2006.01); H02K 7/06 (2006.01); H02K 11/215 (2016.01); H02K 37/00 (2006.01);
U.S. Cl.
CPC ...
F16K 37/0033 (2013.01); F16K 31/04 (2013.01); F16K 31/0675 (2013.01); F16K 37/0025 (2013.01); F16K 37/0041 (2013.01); F16K 37/0083 (2013.01); F25B 41/062 (2013.01); H02K 5/128 (2013.01); H02K 7/003 (2013.01); H02K 7/06 (2013.01); H02K 11/215 (2016.01); F25B 2341/0653 (2013.01); H02K 37/00 (2013.01); Y02B 30/72 (2013.01); Y10T 137/8158 (2015.04); Y10T 137/8225 (2015.04); Y10T 137/8242 (2015.04);
Abstract

The invention provides an electrically operated valve which can more accurately detect a position of a valve body. An electrically operated valve is provided with a valve shaft, a valve body, a rotor member which is movable together with the valve shaft in a parallel direction to a first direction, a stator member which applies a turning force to the rotor member, a permanent magnet member which turns together with the rotor member, an angle sensor which detects an angle of rotation of the permanent magnet, and a guide member which guides a relative movement of the rotor member or the valve shaft in relation to the permanent magnet member. A distance between the permanent magnet and the angle sensor is fixed when the permanent magnet member turns.

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