Damping air spring for heavy-duty vehicle axle/suspension systems
AssigneeHendrickson USA, L.L.C.
InventorsDamon Delorenzis, Jeff R. Zawacki
Life of this patent
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Abstract
A damping air spring for heavy-duty vehicle axle/suspension systems. The damping air spring includes a first chamber and a second chamber and at least one opening between the first chamber and second chamber to provide restricted fluid communication between the first chamber and the second chamber. An adsorptive material is disposed within the first chamber or the second chamber and works in conjunction with the at least one opening to provide damping characteristics to the air spring over a first and second critical range of frequencies.
Claims17
A damping air spring for a heavy-duty vehicle axle/suspension system comprising:
- a. a first chamber comprising a bellows chamber of a bellows;
- b. a second chamber comprising a piston chamber of a piston, said piston including a sidewall and a top plate, said top plate being sealingly engaged with said sidewall to form said piston chamber;
- c. at least one opening, said at least one opening being formed in the top plate of the piston between said first chamber and said second chamber and providing restricted fluid communication between the first chamber and the second chamber;
- and
- d. an adsorptive material disposed within said first chamber or said second chamber, said adsorptive material working in conjunction with said first chamber, said second chamber, and said at least one opening to provide damping characteristics to the damping air spring.
A damping air spring for a heavy-duty vehicle axle/suspension system comprising:
- a. a first chamber comprising a bellows chamber of a bellows;
- b. a second chamber, said second chamber being remote from said bellows;
- c. an air conduit, said air conduit fluidly connecting said bellows chamber to the second chamber, the air conduit providing restricted fluid communication between the first chamber and the second chamber;
- and
- d. an adsorptive material disposed within said second chamber, said adsorptive material working in conjunction with said first chamber, said second chamber, and said air conduit to provide damping characteristics to the damping air spring.
Dependencies are inferred from the claim text.