B - Operations – Transporting – 60 – G
Patent
B - Operations, Transporting
60
G
B60G 17/04 (2006.01) B60G 11/30 (2006.01) B60G 11/46 (2006.01) B60G 17/052 (2006.01) B60G 21/06 (2006.01) F16F 9/04 (2006.01)
Patent
CA 2112715
A pneumatically damped vehicle suspension system. The suspension system provides damping which is load-dependent, i.e., the amount of damping varies in approximate proportion to the load supported by the suspension system, thereby maintaining a nearly constant fraction of critical damping over the normal range of operating loads. The damping provided by the system is also frequency-dependent, a characteristic not achievable with hydraulic dampers. Two independent damping circuits provide maximum damping at the suspension's two resonant frequencies, or modes of vibration--the bounce mode and the axle-hop mode. Relatively little damping is provided at other frequencies, resulting in improved isolation of road inputs.
Penzotti Roger P.
Stephens Donald L.
Oyen Wiggs Green & Mutala Llp
Paccar Inc.
LandOfFree
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