Hydraulic circuitry for an excavator

Details Hydraulic circuitry for an excavator Hydraulic circuitry for an excavator

1976-04-29

1977-06-21

Paperner, L. J.

60421, E02F 332

Patent

active

040306232

ABSTRACT:
A hydraulic circuit is provided for powering and controlling an excavator or the like, with a plurality of pumps supplying pressurized fluid for the circuit. The circuit is arranged so that fluid is provided in a manner to permit positive independent control of the various implement motors of the machine, with means provided so that fluid may also be combined to operate selected implement motors for faster operation and maximum efficiency of the machine.

REFERENCES:
patent: 3641876 (1972-02-01), Wienke
patent: 3646596 (1972-02-01), Bauer
patent: 3720059 (1973-03-01), Schurawski et al.

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