Invention Grant
- Patent Title: Hydraulic damper assembly including an anti-noise member
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Application No.: US17134407Application Date: 2020-12-26
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Publication No.: US11434969B2Publication Date: 2022-09-06
- Inventor: Piotr Grzegorz Maton , Pawel Edward Kus , Dominik Kasprzyk
- Applicant: BeijingWest Industries Co., Ltd.
- Applicant Address: CN Beijing
- Assignee: BeijingWest Industries Co., Ltd.
- Current Assignee: BeijingWest Industries Co., Ltd.
- Current Assignee Address: CN Beijing
- Agency: Dickinson Wright PLLC
- Agent William H. Honaker
- Priority: CN202011420875.9 20201208
- Main IPC: F16F9/34
- IPC: F16F9/34 ; F16F9/02 ; F16F9/18

Abstract:
A hydraulic damper assembly comprises a main tube extending between a first and a second end and defining a fluid chamber extending therebetween. A main piston slidably disposed in the fluid chamber divides the fluid chamber into a compression chamber and a rebound chamber. A piston rod attaches to the main piston. An additional piston couples to the piston rod axially spaced from the main piston. The additional piston has a top surface and a bottom surface and defines at least one pathway extending through the additional piston. The additional piston defines a recess bounded by an upper surface and a lower surface. A ring slidably is disposed in the recess. The additional piston includes an anti-noise member located in the recess whereby the anti-noise member releases fluid pressure between the ring and the upper surface reducing noise generation during a compression stroke and a rebound stroke.
Public/Granted literature
- US20210199172A1 HYDRAULIC DAMPER ASSEMBLY INCLUDING AN ANTI-NOISE MEMBER Public/Granted day:2021-07-01
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