Control arrangement for at least two hydraulic consumers fed by

Details Control arrangement for at least two hydraulic consumers fed by Control arrangement for at least two hydraulic consumers fed by

1987-12-29

1989-07-25

Look, Edward K.

Power plants

Pressure fluid source and motor

Having condition responsive control in a system of distinct...

60426, 60427, 60433, 60452, 60459, 91511, 91532, F16D 3900

Patent

active

048501913

ABSTRACT:
A pump supplies a plurality of consumers each via a directional control valve with pressure balance. When the pump delivery is not adequate, manifesting itself in a dropping of the pump pressure, the pressure balance of the consumer with the highest load pressure is displaced out of the end position of its regulating position into a further control position in which a control pressure line is connected via a throttle point to a discharge so that by means of the throttle point a control pressure is generated which is used for equiproportional reduction of the supply flow to the consumers. This is done either by reducing the stroke of the directional control valves or by acting on the pressure balances in the closure direction.

REFERENCES:
patent: 4327549 (1982-05-01), Bianchetta et al.
patent: 4708596 (1987-11-01), Palm et al.
patent: 4712375 (1987-12-01), Kauss et al.
patent: 4712376 (1987-12-01), Hadank et al.
patent: 4738103 (1988-04-01), Tha
patent: 4739617 (1988-04-01), Kreth et al.
patent: 4756156 (1988-07-01), Appel
patent: 4759183 (1988-07-01), Kreth et al.

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