AIR SPRING DAMPER FOR VEHICLE SUSPENSION

摘要

An air spring damper used in a vehicle suspension system includes upper (174), intermediate (96) and lower (86) chambers and incorporates a reservoir tube (30) which has an anti-friction rod guide and bearing assembly (56,63) therein which lubricates the hollow rod (62) of a valved piston assembly (65) as the piston assembly strokes in the reservoir tube in jounce and rebound. An elastomeric air sleeve (164) is connected to a top mount (112) fastened to the vehicle body (26). An elastomeric isolator (120) of this mount pivotally connects the piston rod to the body while sealing the upper end of the air sleeve. The air sleeve is supported full-time by an outer elastomeric sleeve (184), for improved air sleeve operation. A jounce bumper (102) mounted internally of the reservoir tube is compressible to resist and cushion jounce strokes of the piston. This air spring damper thereby provides optimised vehicle body isolation and damping of both the vehicle body and the wheel axle (10) at their natural frequencies.