Hydraulic control system for industrial vehicle

Details Hydraulic control system for industrial vehicle Hydraulic control system for industrial vehicle

1982-07-19

1985-03-19

Garrett, Robert E.

Power plants

Pressure fluid source and motor

Condition responsive control of or by input to input pump...

60911, F16D 3100

Patent

active

045051119

ABSTRACT:
The rotational speed of a hydraulic pump motor for a fork lift hydraulic control system is varied basically in accordance with the displacement of spools of manual control valves to allow the pressure supplied to servo cylinders to be smoothly increased. The rotational speed may also be varied in response to additional parameters such as the load to be moved by the servo cylinders, the amount of displacement of the load and the rate at which the spools of the manual control valves are moved to provide improved start free safe load handling characteristics.

REFERENCES:
patent: 2565293 (1951-08-01), Aydelott et al.
patent: 3911677 (1975-10-01), Collins
patent: 4102132 (1978-07-01), Palmer
patent: 4144946 (1979-03-01), Melocik

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