Hydraulic circuit for supplying a plurality of series-operated o

Details Hydraulic circuit for supplying a plurality of series-operated o Hydraulic circuit for supplying a plurality of series-operated o

1994-12-09

1997-03-25

Lopez, F. Daniel

Power plants

Pressure fluid source and motor

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

60444, 60464, 60475, 60476, 60484, F16D 3102

Patent

active

056133618

ABSTRACT:
A hydraulic circuit for supplying a plurality of series-operated consumers of a hydraulically controlled installation, in particular of an injection molding machine, having a pump with feed-flow pressure control, is described. To be able to slow down greater moving masses with very little expenditure in regard to circuitry and devices, only a portion of the consumers, such as the extruder, the injection unit and possibly the ejector are operated in open circulation, while at least one selected further consumer, such as the clamping unit of the injection molding machine, where a greater mass must be moved in alternating directions, is moved in semi-closed or closed circulation.

REFERENCES:
patent: 3744375 (1973-07-01), Kubik
patent: 3864911 (1975-02-01), Gellatly et al.
Pippenger, J. J., Industrial Hydraulics, N.Y., McGraw-Hill, Inc, 1979, pp. 403, 407, 409, 410, TJ840.P52 1979.

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