Elizabeth M Robbins

US Patent:

20140332332, Nov 13, 2014

Filed:

May 12, 2014

Appl. No.:

14/275235

Inventors:

- Lake Forest IL, US
Chad Rummel - Oxford MI, US
Elizabeth Robbins - Adrian MI, US
Daniel T. Keil - Temperence MI, US
Jeroen K. Paenhuysen - Ypsilanti MI, US
John McGahey - Trenton MI, US
Dajun Zhang - Troy MI, US

Assignee:

Tenneco Automotive Operating Company Inc. - Lake Forest IL

International Classification:

F16F 9/348
F16F 9/512

US Classification:

188313

Abstract:

A shock absorber for a vehicle includes a pressure tube that defines a fluid chamber. A piston disposed within the fluid chamber divides the fluid chamber into an upper working chamber and a lower working chamber. The piston defines a compression passage and a rebound passage which extend through the piston between the upper working chamber and the lower working chamber. A valve disc assembly engages the piston and controls the flow of fluid between the upper working chamber and the lower working chamber. The valve disc assembly includes a bleed disc that defines an orifice with a substantially non-linear contour. The orifice extends to an outer diameter of the bleed disc, and forms a bleed channel between the upper working chamber and the lower working chamber.