Work vehicle with a fluid pressure circuit system

Details Work vehicle with a fluid pressure circuit system Work vehicle with a fluid pressure circuit system

1977-03-17

1979-01-16

Paperner, L. J.

60484, 91512, 214138R, E02F 332

Patent

active

041345053

ABSTRACT:
A work vehicle with a fluid pressure circuit system comprising an actuator pump, a work equipment mounted on the vehicle and adapted to swivel on a vertical axis, a fluid pressure circuit connected to the actuator pump to actuate the work equipment, and a drive for swivelling the whole of the work equipment. A fluid pressure circuit portion of the fluid pressure circuit is connected to the actuator pump and to the drive to actuate the drive and a control valve is provided on the fluid pressure circuit for actuating the drive. A by-pass route is connected to a supply route and a discharge route of the circuit, at a portion of the fluid pressure circuit between the control valve and the drive. The arrangement is adapted to permit part of the fluid supplied by the actuator pump to short-circuit by way of the by-pass route and smooth the operation of the work equipment.

REFERENCES:
patent: 2722102 (1955-11-01), Pilch
patent: 3156098 (1964-11-01), LaRou
patent: 3172552 (1965-03-01), Metailler
patent: 3922855 (1975-12-01), Bridwell et al.
patent: 4007845 (1977-02-01), Worback
patent: 4030623 (1977-06-01), Bridwell et al.

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