Hydraulic system having selective simultaneous pressure and flow

Details Hydraulic system having selective simultaneous pressure and flow Hydraulic system having selective simultaneous pressure and flow

1977-04-19

1978-11-07

Geoghegan, Edgar W.

Power plants

Pressure fluid source and motor

Condition responsive control of pump or motor displacement

60486, 417212, F16H 3946

Patent

active

041239075

ABSTRACT:
A pressure control valve is connected to selectively supply a control pressure signal to shift a relief valve from a first low pressure mode to a second higher pressure mode and for simultaneously supplying the control pressure signal to an associated variable displacement pump for reducing the relatively high output of the pump to a relatively lower output.

REFERENCES:
patent: 3841795 (1974-10-01), Ferre et al.
patent: 3922855 (1975-12-01), Bridwell et al.

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