公开(公告)号：US3621952A

公开(公告)日：1971-11-23

申请号：US3621952D

申请日：1969-11-05

Applicant: GEN MOTORS CORP

Inventor： LONG PAUL J JR ,  PENDERGAST JOSEPH P

IPC: F16F9/36 ,  F16J15/32

CPC classification number: F16F9/364 ,  F16J15/3232

Abstract: In preferred form, a hydraulic shock absorber piston rod seal of resilient material having an annular collar portion supporting the seal and having radially inwardly projecting end portions on opposite sides of the collar portion which contact the piston rod. One end portion extends axially outward from the shock absorber to prevent the entry of dirt between the piston rod and the seal. The second end portion has a V-shaped cross section adapted to contact the piston rod at a pointed edge to prevent the escape of hydraulic fluid between the piston rod and the seal. An annular garter spring encircles the second end portion to bias the pointed edge of the V-shaped second end portion against the piston rod.