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US 10,118,456 B2Granted
Load leveling emulsion suspension system
OwnerDavid Perrault, Ivan Davisinventors
Life of this patent
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Abstract
A suspension system is disclosed utilizing oil addition and subtraction to actuate an accumulator to control position and stiffness in an Emulsion Shock/Oleo Pneumatic strut/Air spring strut. The strut maintains ride height for a wide variation in sprung mass and adjusts for the expansion/compression of the gas due to variations in temperature. The strut provides spring and damping characteristics.
Claims4
A load leveling strut comprising:
- a main strut body having a strut rod telescopically received within a sleeve, the strut rod and sleeve defining a volume that contains a first compressible fluid;
- and
- a compensation unit defining:
- a first chamber in fluid communication with the volume defined by the strut rod and sleeve, the first chamber containing the first compressible fluid retained by a first piston,
- a second chamber having a stop ring that defines a second chamber volume, the stop ring limiting movement of the first piston in one direction, the second chamber configured to accept a volume of an incompressible fluid, and
- a third chamber having a second piston and a closed end defining a third chamber volume that contains a second compressible fluid;
- wherein the second chamber alters a vehicle ride height in response to the volume of the incompressible fluid in the second chamber.
4 more elements
Dependencies are inferred from the claim text.