公开(公告)号：US10663027B2

公开(公告)日：2020-05-26

申请号：US15933951

申请日：2018-03-23

Applicant: Tenneco Automotive Operating Company Inc.

Inventor： Prashant Patel ,  Koenraad Reybrouck ,  Justin Hendrix

IPC: F16F9/512 ,  F16F9/18 ,  F16F9/34 ,  F16F9/32

Abstract: A damper system for a vehicle is provided that includes including a pressure tube, a piston rod, and a piston assembly that is mounted to the piston rod and separates the pressure tube into first and second working chambers. A valve assembly, mounted to the piston assembly, controls fluid flow between the first and second working chambers. A frequency dependent damper assembly, coupled to the piston rod at a position below the piston assembly, includes a plunger sleeve that is longitudinally moveable to transmit an adaptive force to a valve assembly. A plunger travel limiter, positioned longitudinally between the frequency dependent damper assembly and the valve assembly, contacts the plunger sleeve and prevents the plunger sleeve from moving further towards the piston assembly to limit the magnitude of the adaptive force applied to the valve assembly.

公开(公告)号：US20190293144A1

公开(公告)日：2019-09-26

申请号：US15933993

申请日：2018-03-23

Applicant: Tenneco Automotive Operating Company Inc.

Inventor： Prashant Patel ,  Koenraad Reybrouck ,  Justin Hendrix

IPC: F16F9/34 ,  F16F9/516 ,  F16F9/348 ,  F16F9/512 ,  F16F9/52

Abstract: A damper system for a vehicle is provided that includes a pressure tube and a piston assembly separating the pressure tube into first and second working chambers. A frequency dependent damper assembly, coupled to a piston rod at a position below the piston assembly, includes a plunger sleeve that is longitudinally moveable to transmit an adaptive force to a first valve assembly mounted to the piston assembly. The frequency dependent damper assembly includes first and second accumulation chambers that are separated by a floating piston. A second valve assembly, carried on the floating piston, controls fluid flow between the second accumulation chamber and the second working chamber. A bleed channel in the floating piston allows fluid flow between the first and second accumulation chambers, which reduces the adaptive force the plunger sleeve applies to the first valve assembly during high frequency, low velocity rebound inputs.

公开(公告)号：US10570983B2

公开(公告)日：2020-02-25

申请号：US15933993

申请日：2018-03-23

Applicant: Tenneco Automotive Operating Company Inc.

Inventor： Prashant Patel ,  Koenraad Reybrouck ,  Justin Hendrix

IPC: F16F9/34 ,  F16F9/516 ,  F16F9/52 ,  F16F9/512 ,  F16F9/348

Abstract: A damper system for a vehicle is provided that includes a pressure tube and a piston assembly separating the pressure tube into first and second working chambers. A frequency dependent damper assembly, coupled to a piston rod at a position below the piston assembly, includes a plunger sleeve that is longitudinally moveable to transmit an adaptive force to a first valve assembly mounted to the piston assembly. The frequency dependent damper assembly includes first and second accumulation chambers that are separated by a floating piston. A second valve assembly, carried on the floating piston, controls fluid flow between the second accumulation chamber and the second working chamber. A bleed channel in the floating piston allows fluid flow between the first and second accumulation chambers, which reduces the adaptive force the plunger sleeve applies to the first valve assembly during high frequency, low velocity rebound inputs.

公开(公告)号：US20190293146A1

公开(公告)日：2019-09-26

申请号：US15933951

申请日：2018-03-23

Applicant: Tenneco Automotive Operating Company Inc.

Inventor： Prashant Patel ,  Koenraad Reybrouck ,  Justin Hendrix

IPC: F16F9/512 ,  F16F9/18 ,  F16F9/32 ,  F16F9/34

Abstract: A damper system for a vehicle is provided that includes including a pressure tube, a piston rod, and a piston assembly that is mounted to the piston rod and separates the pressure tube into first and second working chambers. A valve assembly, mounted to the piston assembly, controls fluid flow between the first and second working chambers. A frequency dependent damper assembly, coupled to the piston rod at a position below the piston assembly, includes a plunger sleeve that is longitudinally moveable to transmit an adaptive force to a valve assembly. A plunger travel limiter, positioned longitudinally between the frequency dependent damper assembly and the valve assembly, contacts the plunger sleeve and prevents the plunger sleeve from moving further towards the piston assembly to limit the magnitude of the adaptive force applied to the valve assembly.