Land vehicles – Wheeled – Running gear
Patent
1990-08-06
1991-10-01
Rice, Kenneth R.
Land vehicles
Wheeled
Running gear
280683, 280704, 280707, 280714, B60G 1126
Patent
active
050527134
ABSTRACT:
Apparatus and process for shifting vehicle loads between the axles of multi-axle vehicles. The apparatus includes means for automatically restoring pneumatic pressure to the suspension system of an axle when the speed of the vehicle exceeds a predetermined speed. The apparatus also includes means for automatically exhausting the pneumatic pressure if the speed of the vehicle falls below the predetermined speed within a predetermined time from actuating the device. The process includes the steps of automatically restoring pressure to the pneumatic suspension system of a dead axle when a predetermined speed has been exceeded, and again exhausting the pressure if a fall in vehicle speed below the predetermined speed occurs within a specified time. An override in both the apparatus and method prevents exhaustion of the pneumatic pressure after a predetermined time from first exhausting the pressure.
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Corey Jeffrey S.
Miles Michael A.
Lufkin Industries, Inc.
Rice Kenneth R.
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