Gas spring and gas damper assemblies as well as suspension systems including same
AssigneeFirestone Industrial Products Company, LLC
InventorJoshua R. Leonard
Life of this patent
Estimating the term…
Abstract
A gas spring and gas damper assembly includes a gas spring and a gas damper. The gas spring includes a flexible spring member with opposing end members secured thereto and at least partially defining a spring chamber. The gas damper includes an inner sleeve that is at least partially received within one of the end members and at least partially forms a damping chamber. A damper piston assembly is received within the damping chamber and secured to the other of the end members. An elongated damping passage fluidically connects the damping chamber and the spring chamber. Suspension systems and methods are also included.
Claims21
A gas spring and gas damper assembly comprising:
- a gas spring including:
- a flexible spring member having a longitudinal axis and including a flexible wall extending longitudinally between first and second ends and peripherally about said axis to at least partially define a spring chamber;
- a first end member secured across said first end of said flexible spring member such that a substantially fluid-tight seal is formed therebetween;
- and,
- a second end member disposed in spaced relation to said first end member and secured across said second end of said flexible spring member such that a substantially fluid-tight seal is formed therebetween, said second end member including an end member wall having an outside surface dimensioned for abutting engagement with said flexible wall of said flexible spring member and an inside surface at least partially defining an end member cavity;
- and,
- a gas damper including:
- an inner sleeve extending longitudinally between opposing sleeve ends, said inner sleeve including a sleeve wall with an inner surface and an outer surface, said inner sleeve at least partially received within said end member cavity such that said outer surface of said sleeve wall is disposed in facing relation to said inside surface of said end member wall, said inner surface of said sleeve wall at least partially defining a damping chamber;
- and,
- a damper piston assembly including a damper piston and an elongated damper rod operatively connected to said damper piston, said damper piston positioned within said damping chamber and including an outer side wall disposed adjacent said inner surface of said inner sleeve, said damper piston separating said piston chamber into first and second chamber portions with at least one of said first and second chamber portions disposed in fluid communication with said spring chamber through one or more elongated damping passages that are capable of providing pressurized gas damping;
- said damper rod operatively connected to said first end member such that upon extension and compression of said gas spring and gas damper assembly, said damper piston is reciprocally displaced within said damping chamber.
(canceled)
Dependencies are inferred from the claim text.