Spring devices – Vehicle – Comprising compressible fluid
Patent
1995-07-05
1996-10-22
Oberleitner, Robert J.
Spring devices
Vehicle
Comprising compressible fluid
267 6427, F16F 904
Patent
active
055669298
ABSTRACT:
A rolling-lobe air spring is made of elastomeric material and includes a reinforcement layer made of rubberized textile cord fabric layers. The reinforcement layer extends over the length of the flexible member of the air spring. The cord threads of the textile cord fabric layers are arranged so that they are inclined relative to the peripheral direction of the flexible member. During operation, a rolling lobe is formed which changes during spring operation. The reinforcement layer includes three rubberized cord fabric layers (21, 22, 23) one atop the other. This provides a rolling-lobe air spring having a longer service life at higher internal pressures and smaller roll-off radii in the rolling lobe. The threads of the middle cord fabric layer 22 are arranged so as to cross the threads of the first and third layers. The middle cord fabric layer 22 has a strength which corresponds to the sum of the strengths of the first and third layers.
REFERENCES:
patent: 3897941 (1975-08-01), Hirtreiter et al.
patent: 4763883 (1988-08-01), Crabtree
patent: 5201499 (1993-04-01), Elliott et al.
patent: 5286010 (1994-02-01), Pahl et al.
patent: 5346187 (1994-09-01), Drescher
Continental Aktiengesellschaft
Oberleitner Robert J.
Ottesen Walter
Schwartz Chris
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