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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 11398332 B1

PDFFull Text
Date of Patent:
Jul. 26, 2022

Filed:

Jan. 02, 2020

Electromagnetic actuator and hydraulic pressure adjustment mechanism

Applicant:

Mitsubishi Electric Corporation, Chiyoda-ku, JP;

Inventors:

Shoji Ishikawa, Chiyoda-ku, JP;

Toru Ogawa, Chiyoda-ku, JP;

Kazumasa Ito, Chiyoda-ku, JP;

Ryuichi Takiguchi, Chiyoda-ku, JP;

Assignee:

MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;

Attorney:

Xsensus LLP

Primary Examiner:

Matthew W Jellett

Int. Cl.
CPC ...
F16K 31/08 (2006.01); H01F 7/08 (2006.01); F15B 13/043 (2006.01); H01F 7/02 (2006.01); H01F 7/16 (2006.01); H01F 27/24 (2006.01); H01F 27/28 (2006.01); F16K 31/06 (2006.01); H01F 7/122 (2006.01); F15B 13/04 (2006.01); F15B 13/044 (2006.01);
U.S. Cl.
CPC ...
H01F 7/081 (2013.01); F15B 13/0402 (2013.01); F15B 13/0433 (2013.01); F16K 31/0675 (2013.01); F16K 31/082 (2013.01); H01F 7/02 (2013.01); H01F 7/122 (2013.01); H01F 7/16 (2013.01); H01F 27/24 (2013.01); H01F 27/28 (2013.01); F15B 2013/0448 (2013.01); Y10T 137/86614 (2015.04); Y10T 137/86622 (2015.04);
Abstract

To obtain an electromagnetic actuator capable of improving a thrust force of a movable element. Provided is an electromagnetic actuator, including: a stator, which has a first surface at one end in an axial direction and a second surface at another end in the axial direction, and is made of a soft magnetic material having a tubular space formed in the axial direction; and a movable element, which is disposed in the tubular space, and is configured to move along the axial direction, wherein the stator includes: a coil; a core portion; and a protrusion portion, wherein the movable element includes a movable element core made of a soft magnetic material and a permanent magnet, and wherein at least one of a radially inner side and a radially outer side of the permanent magnet is covered by a movable element core.

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