Hydrostatic drive systems

Details Hydrostatic drive systems Hydrostatic drive systems

1984-04-03

1986-10-21

Look, Edward K.

Power plants

Pressure fluid source and motor

Condition responsive control of pump or motor displacement

60420, 91446, 13762568, F16D 3102

Patent

active

046177981

ABSTRACT:
A hydrostatic drive is provided having an adjustable pump connected with a pump servo positioned by a control pressure from a line connected between the consumer and an adjustable measuring restrictor which in turn is connected to a switching means which includes a plurality of hollow ended main spools in boreholes in a housing, and secondary spools in said hollow ends acting with radial passages in the main spool to form parallel connected restrictors.

REFERENCES:
patent: 3565110 (1971-02-01), Hodgson
patent: 4122865 (1978-10-01), Budzich
patent: 4187877 (1980-02-01), Hodgson et al.

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