Invention Grant
- Patent Title: Damper with hydraulic end stop
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Application No.: US16509731Application Date: 2019-07-12
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Publication No.: US10989268B2Publication Date: 2021-04-27
- Inventor: Diego Alves de Oliveira , Nirupam Kar , Matthew Ryan Schelosky , Matthew Roessle
- Applicant: Tenneco Automotive Operating Company Inc.
- Applicant Address: US IL Lake Forest
- Assignee: Tenneco Automotive Operating Company Inc.
- Current Assignee: Tenneco Automotive Operating Company Inc.
- Current Assignee Address: US IL Lake Forest
- Agency: McGarry Bair PC
- Main IPC: F16F9/36
- IPC: F16F9/36 ; B60G13/08 ; F16F9/58 ; F16F9/49

Abstract:
A damper includes a pressure tube and a piston. The piston defines a rebound chamber and a compression chamber. The damper further includes a piston rod that reciprocates with the piston. The damper includes a sealing ring slidably disposed around the piston rod. The sealing ring includes a locking mechanism adapted to lock the sealing ring around the piston rod. The sealing ring also includes an inner surface having a plurality of concave surfaces and a plurality of convex surfaces. Each of the plurality of concave surfaces is located adjacent to a corresponding convex surface of the plurality of convex surfaces. The sealing ring further includes an upper surface extending between the outer and inner surfaces. The upper surface defines a plurality of channels. The sealing ring further includes grooves and bleeds for tuning energy dissipated by the damper during rebound stroke to help reduction of noise.
Public/Granted literature
- US20210010559A1 DAMPER WITH HYDRAULIC END STOP Public/Granted day:2021-01-14
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