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:
Jun. 27, 2023

Filed:

Nov. 25, 2020
Applicant:

Beijingwest Industries Co., Ltd., Beijing, CN;

Inventors:

Pawel Slusarczyk, Cracow, PL;

Marcin Knapczyk, Cracow, PL;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F16F 9/512 (2006.01); F16F 9/348 (2006.01);
U.S. Cl.
CPC ...
F16F 9/5126 (2013.01); F16F 9/3482 (2013.01); F16F 9/3484 (2013.01);
Abstract

A hydraulic damper assembly comprises a housing defining a fluid chamber. A piston is slidably disposed in the fluid chamber dividing the fluid chamber into a compression and a rebound chamber. A piston rod couples to the piston for movement between a compression and a rebound stroke. The piston has a compression surface and a rebound surface. The piston defines at least one compression channel, at least one rebound channel, and at least one additional channel. A compression valve covers the at least one compression channel. A rebound valve covers the at least one rebound channel. A proportional bleeding system located between the compression valve and the piston to establish a bleeding flow passage between the at least one rebound chamber and the at least one additional channel for reducing operation harshness of the hydraulic damper assembly. A piston for the hydraulic damper assembly is also disclosed herein.


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