Invention Grant
- Patent Title: Damper with electro-magnetic actuator
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Application No.: US15903571Application Date: 2018-02-23
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Publication No.: US10690215B2Publication Date: 2020-06-23
- Inventor: Monzer Al Sakka , Miguel Dhaens , Christophe Lauwerys , Thibault Le Polain
- 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
- Agent Donald G. Walker
- Main IPC: F16F9/512
- IPC: F16F9/512 ; B60G17/015 ; F16F9/32

Abstract:
A damper system for a vehicle is provided that includes an outer tube, a piston rod, and a piston assembly that is mounted to the piston rod and separates the outer 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 magnetic rotor is fixed to and extends annularly about the outer tube. A stator assembly is coupled to the piston rod by a spherical bearing assembly. The stator assembly includes a plurality of coils that apply an active damping force to the piston rod when energized. The coils can also generate electricity from axial movements of the piston rod relative to the outer tube. One or more glide bearings are disposed radially between the coils and the magnetic rotor in a sliding fit to stabilize the stator assembly.
Public/Granted literature
- US20190264771A1 Damper With Electro-magnetic Actuator Public/Granted day:2019-08-29
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