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US 12,504,053 B2Granted
Position sensitive suspension damping with an active valve
AssigneeFox Factory, Inc.
InventorsChristopher Paul Cox, John Marking, Everet Owen Ericksen
Life of this patent
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Abstract
Methods and apparatus for position sensitive dampening with an active valve. In one aspect a fluid damper is provided comprising a damper chamber divided by a piston into a primary compression and a primary rebound chamber; a secondary compression chamber in fluid communication with the damper chamber; and an active valve controlling fluid flow out of the secondary compression chamber.
Claims8
A damper for a shock absorber comprising:
- a damper chamber divided by a piston and shaft into a compression portion and a rebound portion;
- a bottom out control feature at an end of the compression portion;
- a fluid flow path formed in the bottom out control feature for providing fluid communication from the bottom out control feature to the compression portion of the damper chamber during a compression stroke of the damper;
- an active valve coupled with said fluid flow path, said active valve to meter a fluid flow of a working fluid through said fluid flow path;
- and
- wherein said active valve comprises:
- a solenoid;
- a body having a male hex member;
- and
- a nipple having a female hex profile bore, the female hex profile bore having mating threads formed on an inside diameter thereof, the male hex member of the body extends into the female hex profile bore of the nipple, said solenoid coupled with said body to cause a rotation of said body, said rotation of said body causing said nipple to move toward or away from an orifice of said fluid flow path to meter said fluid flow of said working fluid through said fluid flow path, wherein said body is configured to index at various points of said rotation, wherein said rotation of said body and a corresponding setting of said active valve is automatically adjusted based upon one or more driving conditions.
7 more elements
Dependencies are inferred from the claim text.