公开(公告)号：US10479160B2

公开(公告)日：2019-11-19

申请号：US16103068

申请日：2018-08-14

Applicant: Tenneco Automotive Operating Company Inc.

Inventor： Matthew Roessle

IPC: B60G17/08 ,  F16F9/32 ,  B60G13/00 ,  B60G13/08

Abstract: An electrically adjustable hydraulic shock absorber includes a tube defining a fluid chamber and a piston assembly positioned within the tube. The piston assembly divides the fluid chamber into a first working chamber and a second working chamber. A piston rod is attached to the piston assembly and projects out of the tube. Further, a rod guide guides the piston rod and an electronically-controlled valve is positioned within the rod guide for controlling a damping state of the shock absorber. A circuit board is positioned around the piston rod for actuating the electronically-controlled valve. A carrier housing receives the circuit board and engages with the rod guide. The carrier housing includes an inner column and an outer column. A bumper cap is mounted on the carrier housing and is engaged with the inner and outer columns.

公开(公告)号：US20210010559A1

公开(公告)日：2021-01-14

申请号：US16509731

申请日：2019-07-12

Applicant: Tenneco Automotive Operating Company Inc.

Inventor： Diego Alves de Oliveira ,  Nirupam Kar ,  Matthew Ryan Schelosky ,  Matthew Roessle

IPC: F16F9/36 ,  B60G13/08 ,  F16F9/49 ,  F16F9/58

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.

公开(公告)号：US10989268B2

公开(公告)日：2021-04-27

申请号：US16509731

申请日：2019-07-12

Applicant: Tenneco Automotive Operating Company Inc.

Inventor： Diego Alves de Oliveira ,  Nirupam Kar ,  Matthew Ryan Schelosky ,  Matthew Roessle

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.

公开(公告)号：US20180370320A1

公开(公告)日：2018-12-27

申请号：US16103068

申请日：2018-08-14

Applicant: Tenneco Automotive Operating Company Inc.

Inventor： Matthew Roessle

IPC: B60G17/08 ,  B60G13/00 ,  F16F9/32

CPC classification number: B60G17/08 ,  B60G13/001 ,  B60G13/08 ,  B60G2202/24 ,  B60G2204/112 ,  B60G2400/7162 ,  B60G2500/10 ,  F16F9/3242 ,  F16F9/3292

Abstract: An electrically adjustable hydraulic shock absorber includes a tube defining a fluid chamber and a piston assembly positioned within the tube. The piston assembly divides the fluid chamber into a first working chamber and a second working chamber. A piston rod is attached to the piston assembly and projects out of the tube. Further, a rod guide guides the piston rod and an electronically-controlled valve is positioned within the rod guide for controlling a damping state of the shock absorber. A circuit board is positioned around the piston rod for actuating the electronically-controlled valve. A carrier housing receives the circuit board and engages with the rod guide. The carrier housing includes an inner column and an outer column. A bumper cap is mounted on the carrier housing and is engaged with the inner and outer columns.