Patent ID: 9738131
Date: 2017-08-22
CPC Classifications: B60G,F16F,F16J

Claim:
1. An air spring with damping characteristics for a suspension assembly of a heavy-duty vehicle comprising: a bellows and a piston, said bellows including a bellows chamber, the bellows connected to a main member of said heavy-duty vehicle, said bellows to directly connected to a retaining plate which is in turn mounted on a top plate of said piston, the piston having an open bottom, said open bottom of said piston being sealingly closed by a disc attached to the open bottom, whereby the piston and said disc define a piston chamber, said piston mounted on said suspension assembly of said heavy-duty vehicle, said bellows chamber and said piston chamber being in fluid communication with each other via aligned openings formed in said retaining plate and said piston top plate, wherein airflow between the bellows chamber and the piston chamber provides damping to the suspension assembly of said heavy-duty vehicle.