B - Operations – Transporting – 60 – G
Patent
B - Operations, Transporting
60
G
267/47
B60G 11/26 (2006.01) B60G 7/00 (2006.01) B60G 7/04 (2006.01) B60G 11/27 (2006.01) B60G 13/10 (2006.01) B60G 21/05 (2006.01)
Patent
CA 1307800
AXLE SUSPENSION SYSTEM Abstract of the Disclosure A front axle suspension for a vehicle that is soft in ride and stiff in roll is provided. The front axle is coupled to a solid beam. The beam is a relatively nonflexible member. The beam is pivotally coupled at one end thereof to the frame and is freely movable at the other end thereof, being coupled to said frame through a two-shackle coupling that permits verti- cal displacement and prevents horizontal displacement. Two air bags are coupled between said b am and said frame. The two air bags carry substantially all the weight of the vehicle over the front axle. The two bags are designed to provide a very soft ride. The two bags are positioned longitudinally along the beam such that one of the air bags is displaced a greater dis- tance than the other from the pivotal connection of the beam to the frame. An air line couples the two air bags to each other to permit air to flow from one air bag to the other during move- ment of the front axle with respect to the frame. An orifice restricts the flow of air between the bags to ensure that damp- ing occurs at a selected frequency, such as the system natural frequency. PC 70-1
594036
Saunders James
Stephens Donald L.
Oyen Wiggs Green & Mutala Llp
Paccar Inc
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