US 7,320,469 B2
Ride height control system for walking beam suspension
Braden Bromley, Royal Oak, Mich. (US)
Assigned to ArvinMeritor Technology, LLC, Troy, Mich. (US)
Filed on Oct. 07, 2004, as Appl. No. 10/960,837.
Prior Publication US 2006/0076757 A1, Apr. 13, 2006
Int. Cl. B60G 17/04 (2006.01)
U.S. Cl. 280—5.514 13 Claims
OG exemplary drawing
 
1. A trailer suspension system comprising:
first and second axles with a beam interconnecting the first and second axles, an intermediate portion of the beam providing a fulcrum for the first and second axles;
air bags arranged on the first and second axles; and
a ride height control valve interconnected to the intermediate portion by a linkage, the ride height control valve regulating a pressure in the air bags in response to vertical movement of the intermediate portion transmitted through the linkage to the ride height control valve.