Pumps – Processes
Patent
1994-04-26
1996-07-09
Korytnyk, Peter
Pumps
Processes
417218, 60450, F04B 4908
Patent
active
055338674
ABSTRACT:
A hydrostatic drive system including an adjustable pump and a hydraulic fluid delivery line connecting the outlet of the pump to the inlet of a hydraulic energy consuming device. An adjustable throttle is located in the hydraulic fluid delivery line between the outlet of the pump and the inlet of the hydraulic energy consuming device. A load-sensing controller is connected to the hydraulic fluid delivery line on opposite sides of the throttle and is operatively connected to the pump to determine the displacement of the pump and to reproduce the pressure drop at the throttle. The load-sensing controller coordinates the pressure difference, .DELTA.p, and the size of the opening of the throttle in accordance with the set speed of movement of the hydraulic energy consuming device.
REFERENCES:
patent: 4067664 (1978-01-01), Robeller
patent: 4325677 (1982-04-01), Nonnenmacher
patent: 4518322 (1985-05-01), Nonnenmacher
patent: 4710106 (1987-12-01), Iwata et al.
patent: 4892465 (1990-01-01), Born et al.
patent: 4976106 (1990-12-01), Noerskau et al.
patent: 5190445 (1993-03-01), Ikari
patent: 5203678 (1993-04-01), Sugiyama et al.
patent: 5326230 (1994-07-01), Fischer et al.
Korytnyk Peter
Linde Aktiengesellschaft
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