Back to results
US 2006/0049014 A1Published application
Shock absorber having a hydraulic stop
AssigneeTenneco Automotive Operating Company Inc.
InventorVincent Vanspauwen
Life of this patent
Estimating the term…
Abstract
A shock absorber includes a hydraulic stop. The hydraulic stop includes two housings connected together by a spring. At the end of the stroke of the shock absorber, the piston causes the two housings to approach each other thereby causing fluid disposed between the housings to flow through a bleed passage. The size or total area of the bleed passage will determine the amount of hydraulic damping provided by the hydraulic stop.
Claims19
A shock absorber comprising:
- a pressure tube defining a working chamber;
- a piston disposed within said working chamber, said piston dividing said working chamber into an upper working chamber and a lower working chamber;
- a piston rod attached to said piston, said piston rod extending from said piston to a position outside said pressure tube;
- an end cap attached to one end of said pressure tube;
- a first retainer disposed within said pressure tube adjacent said end cap, said first retainer slidingly engaging said piston rod;
- a second retainer disposed within and sealingly engaging said pressure tube to prohibit fluid flow between said second retainer and said pressure tube, said second retainer slidingly engaging said piston rod;
- a spring disposed between said first and second retainers;
- wherein:
- said first and second retainers define a damping chamber disposed within said working chamber;
- and
- said second retainer defines a bleed passage in communication with said damping chamber and said working chamber.
8 more elements
A shock absorber comprising:
- a pressure tube defining a working chamber;
- a piston disposed within said working chamber, said piston dividing said working chamber into an upper working chamber and a lower working chamber;
- a piston rod attached to said piston, said piston rod extending from said piston to a position outside said pressure tube;
- an end cap attached to one end of said pressure tube;
- a first retainer disposed within said pressure tube adjacent said end cap, said first retainer slidingly engaging said piston rod;
- a second retainer disposed within said pressure tube, said second retainer slidingly engaging said piston rod;
- a spring press fit within said pressure tube, said spring engaging said first retainer to maintain said first retainer adjacent said end cap, said spring being press fit to said second retainer;
- wherein:
- said first and second retainers define a damping chamber disposed within said working chamber;
- and
- said second retainer defines a bleed passage in communication with said damping chamber and said working chamber.
8 more elements
19-26. (canceled)
Dependencies are inferred from the claim text.