Spring devices – Vehicle – Comprising compressible fluid
Patent
1989-09-29
1991-10-29
Butler, Douglas C.
Spring devices
Vehicle
Comprising compressible fluid
280711, 267122, B25G 300, F16F 904
Patent
active
050609165
ABSTRACT:
A plunger piston system used, for example, to support and guide a pneumatic spring bellows of an air suspension axle of a commercial vehicle or the like, includes a plunger piston that has a cylindrical plunger piston skirt with a bottom foot region for connection with an air spring bearing arm and an upper plunger piston edge that adjoins the plunger piston edge that adjoins the plunger piston skirt. A trough section which extends radially inward from the edge has a trough base with an opening for the passage of a bolt for a force-fit connection with a base of the air spring bellows. The trough section defines a trough to accommodate a convex base of the air spring bellows. A supporting body fits in an inner space of the plunger piston is surrounded by the skirt thereof. A lower foot area of the supporting body rests on the lower foot area of the plunger piston. The plunger piston and the supporting body may be of plastic. The plunger piston is configures so as to be pot-shaped with an essentially cylindrical casing, and the supporting body is configures as a separate part of essentially truncated conical shape with a diameter that becomes smaller form the lower foot area to the trough base of the plunger piston. The upper base plate of the supporting body contacts the underside of the trough base of the plunger piston.
REFERENCES:
patent: 4506910 (1985-03-01), Bierens
patent: 4784376 (1988-11-01), Ecktman
patent: 4787606 (1988-11-01), Geno et al.
patent: 4787608 (1988-11-01), Elliott
patent: 4798369 (1989-01-01), Geno et al.
patent: 4852861 (1989-08-01), Harris
patent: 4890823 (1990-01-01), Koschinat et al.
Frohlke Manfred
Koschinat B. Hubert
Butler Douglas C.
Otto Sauer Achsenfabrik Keilberg
LandOfFree
Plunger piston system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Plunger piston system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Plunger piston system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1394669