Gas spring assembly for a vehicle suspension system
AssigneeOshkosh Defense, LLC
InventorsRoy Venton-Walters, Aaron J. Rositch, Jesse L. Knoble, Erik Ellifson, Mark L. Steckling
Life of this patent
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Abstract
A vehicle suspension system includes a gas spring. The gas spring includes a cylinder and a rod movable relative to the cylinder. The rod and the cylinder at least partially define a chamber having a variable volume and containing a first pressurized gas therein. The gas spring further includes an accumulator in communication with the chamber and containing a second pressurized gas therein. The gas spring provides a first spring rate when the first pressurized gas is pressurized below a threshold pressure and a second spring rate when the first pressurized gas is pressurized above the threshold pressure.
Claims20
A vehicle suspension system comprising a gas spring, the gas spring comprising:
- a cylinder;
- a rod movable relative to the cylinder, the rod and the cylinder at least partially defining a chamber having a variable volume and containing a first pressurized gas therein;
- and
- an accumulator in communication with the chamber and containing a second pressurized gas therein, the gas spring providing a first spring rate when the first pressurized gas is pressurized below a threshold pressure and a second spring rate when the first pressurized gas is pressurized above the threshold pressure.
A vehicle suspension system comprising a gas spring, the gas spring comprising:
- a cylinder defining an inner chamber;
- a rod disposed within the cylinder and movable relative to the cylinder to adjust a volume of the inner chamber;
- and
- a sensor coupled to at least one of the rod and the cylinder, wherein the sensor is configured to provide a signal indicative of a ride height of the vehicle suspension system based upon a relative position of the rod and the cylinder.
A vehicle suspension system comprising a gas spring, the gas spring comprising:
- a rod movable relative to a cylinder, the rod and the cylinder at least partially defining a variable volume chamber;
- and
- an accumulator in fluid communication with the variable volume chamber,
- wherein the variable volume chamber receives a first gas and the accumulator receives a second gas fluidly separate from the first gas, the second gas being pressurized to a threshold pressure, and wherein the first gas provides different spring rates when the first gas is above or below the threshold pressure.
Dependencies are inferred from the claim text.