Railway rolling stock – Trucks – Radial
Patent
1992-06-08
1993-04-27
Le, Mark T.
Railway rolling stock
Trucks
Radial
105138, 105133, 1052061, 105136, 105101, B61F 500
Patent
active
052052206
ABSTRACT:
An improvement in railway trucks having a flexible frame and independent drive mechanism particularly adapted to accommodate the flexing frame. The frame includes parallel first and second frame members, a first cross-member rigidly attached to the first frame member and loosely attached to the second frame member. A second cross-member is rigidly connected to the second frame member and loosely engaged by the first frame member. Hydraulic motors are pivotally connected to the second cross-member by pivotal arms and pivotally secured to a pair of rail way truck axles supporting the frame members such that flexion of the frames and cross-members will not affect the distance between the motor and the axles. Chain and sprocket assemblies are provided to operatively connect the motors and the axles. An engine and hydraulic pumps are connected to the first cross-member to drive the motors. The pumps are operatively connected to the motors with flexible conduit. The flexible conduit is particularly effective in accommodating relative movement between the motors and the pumps caused by the relative deflection between the various cross-members and frame members.
REFERENCES:
patent: 4537138 (1985-08-01), Bullock
patent: 4679507 (1987-07-01), Rassaian
patent: 4787318 (1988-11-01), Vogel
patent: 5086706 (1992-02-01), Boivin
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