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US 8,739,948 B2Granted
Support washer for shock absorber valve with blow-off tunability
AssigneeTenneco Automotive Operating Company Inc.
InventorJohn Patrick McGahey
Life of this patent
Estimating the term…
Abstract
A valve assembly for a shock absorber includes a valve body defining a fluid passage. A valve disc engages the valve body to close the fluid passage. A fulcrum disc engages the valve disc at a first position and a second position radially outward from the first position. The fulcrum disc is designed such that the second position is closer to the valve body. In one embodiment, the fulcrum disc is concave with respect to the valve body.
Claims24
A shock absorber comprising:
- a pressure tube forming a fluid working chamber;
- a piston disposed within said fluid chamber, said piston dividing said fluid chamber into an upper working chamber and a lower working chamber, said piston defining a fluid passage;
- a piston rod attached to said piston, said piston rod extending through said fluid working chamber;
- a valve assembly attached to said piston, said valve assembly comprising:
- one or more valve discs disposed adjacent said piston, said one or more valve discs closing said fluid passage;
- and
- a fulcrum disposed adjacent said one or more valve discs, said fulcrum directly engaging said one or more valve discs at a first position adjacent said piston rod and directly engaging said one or more valve discs at a second position spaced from said piston rod, said second position being spaced from said first position in a direction toward said piston.
4 more elements
A shock absorber comprising:
- a pressure tube forming a fluid chamber;
- a valve body engaging said pressure tube, said valve body defining a fluid passage;
- a valve assembly attached to said valve body, said valve assembly comprising:
- one or more valve discs disposed adjacent said valve body, said one or more valve discs closing said fluid passages;
- a fulcrum disposed adjacent said one or more valve discs, said fulcrum having a first surface directly engaging said one or more valve discs at a first position, said fulcrum having a second surface directly engaging said one or more valve discs at a second position, said second position being located radially outward from said first position, said second surface being disposed closer to said valve body than said first surface.
2 more elements
Dependencies are inferred from the claim text.