Hydraulic power system

Details Hydraulic power system Hydraulic power system

1986-03-20

1988-04-19

Wayner, William E.

Power plants

Pressure fluid source and motor

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

60433, 60484, F16D 3102

Patent

active

047381043

ABSTRACT:
A hydraulic power system is disclosed which comprises an internal combustion engine having a speed regulator, and which serves to drive a hydraulic system including a pump and a consumer or load. A throttle valve is positioned in the hydraulic system, and the throttle valve is connected to an adjustable controller, such that the volume flow rate to the consumer is proportional to the control signal delivered to the throttle valve by the controller. The same control signal of the controller is also delivered to the speed regulator of the engine. In one disclosed embodiment, the hydraulic system includes a plurality of consumers connected to a common pump, and each consumer includes an associated throttle valve and controller. Also, means are provided for weighting the several control signals from the controllers, and summing the weighted signals so that a composite adjusting signal is delivered to the speed regulator of the engine.

REFERENCES:
patent: 3589130 (1971-06-01), Flaschar
patent: 4355655 (1982-10-01), Hertell et al.
patent: 4505111 (1985-03-01), Okamoto et al.
patent: 4535966 (1985-08-01), Post et al.

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