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:
Oct. 23, 2018

Filed:

Jan. 25, 2017
Applicant:

Mando Corporation, Pyeongtaek-si, Gyeonggi-do, KR;

Inventors:

Ki Don Jung, Seongnam-si, KR;

Myeong Su Hwang, Suwon-si, KR;

Assignee:

MANDO CORPORATION, Pyeongtaek-si, Gyeonggi-do, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16F 9/34 (2006.01); F16F 9/46 (2006.01);
U.S. Cl.
CPC ...
F16F 9/34 (2013.01); F16F 9/466 (2013.01); F16F 2222/12 (2013.01); F16F 2230/24 (2013.01);
Abstract

The present disclosure relates to a damping force variable valve assembly, which is installed in a damping force variable shock absorber for adjustment of a damping force of the shock absorber, includes at least: a solenoid that generates a magnetic force when an electric current is supplied thereto; a plunger configured to be moved by the magnetic force of the solenoid; a spool that is moved together with the plunger and change a damping force between a hard mode and a soft mode by changing an inner passage of the damping force variable valve assembly; and a spool position determination member that locates the spool at a fail position, which does not correspond to the hard mode and the soft mode, so as to maintain the damping force of the shock absorber at a medium level between the hard mode and the soft mode upon fail of the solenoid.


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