Shock absorber with deflector for high pressure rebound oil

A shock absorber comprising a cylinder tube having a hydraulic fluid therein, a piston slidably mounted in said cylinder tube, base valve means operatively supported at one end of said cylinder tube for controlling the flow of said fluid to and from said cylinder tube, piston rod guide means operatively disposed at the other end of said cylinder tube having a centralized piston rod opening therein, a piston rod having one end secured to said piston and extending slidably through said piston rod opening to a termination external of said shock absorber, said rod being reciprocally movable in said cylinder tube, a reservoir tube disposed around said cylinder tube and cooperating therewith to form a reservoir for said hydraulic fluid, a seal cover secured to said reservoir tube and disposed around said rod guide, annular resilient seal means operatively disposed between said piston rod guide means and said seal cover, said seal means having an annular fluid sealing lip engaging said piston rod to provide a hydraulic seal for said shock absorber, hydraulic fluid deflector means defining a substantially conical fluid deflecting face disposed beneath said seal means and having an inner annular hydraulic fluid pick-up surface actively engaged with said piston rod for diverting said hydraulic fluid from said cylinder tube above said piston away from said seal means and directing said fluid into said reservoir to thereby prevent said fluid from flexing said seal means and escaping from said shock absorber on the movement of said piston rod outwardly of said cylinder tube.

A shock absorber comprising a cylinder tube having a hydraulic fluid therein, a piston slidably mounted in said cylinder tube, base valve means operatively supported at one end of said cylinder tube for controlling the flow of said fluid to and from said cylinder tube, a piston rod guide operatively disposed at the other end of said cylinder tube having a centralized piston rod opening therein, a cylindrical piston rod having one end secured to said piston and extending axially through said piston rod opening to a termination external of said shock absorber, said rod being movable inwardly and outwardly of said cylinder tube, a reservoir tube disposed around said cylinder tube and cooperating therewith to form a reservoir for said hydraulic fluid, a seal cover secured to said reservoir tube and disposed around said rod guide, annular resilient seal means operatively disposed between said piston rod guide and said seal cover, said seal means having an annular fluid sealing lip engaging said piston rod to provide a hydraulic seal for said shock absorber, an inclined hydraulic fluid deflector means having an annular contact surface disposed in close proximity to the outer surface of said piston rod located in said piston rod guide inboard of said seal means actively engaged with said piston rod for diverting hydraulic fluid from said seal means and directing said fluid into said reservoir to thereby prevent said fluid from flexing said seal means and escaping from said shock absorber on the movement of said piston rod outwardly of said cylinder tube.