Hydraulic actuating system and method

Details Hydraulic actuating system and method Hydraulic actuating system and method

1991-09-24

1993-04-13

Look, Edward K.

Power plants

Pressure fluid source and motor

With control means for structure storing work driving energy

60468, 417540, 91462, F16D 3102

Patent

active

052011755

ABSTRACT:
A hydraulic actuating system and method comprises a pump which continuously circulates hydraulic fluid out of a reservoir into a pressure line limited to a predetermined maximum pressure by a pressure-limiting valve and a control valve connected to the pressure line controlling flow of hydraulic fluid to an operating cylinder. A clearance volume in communication with the pressure line collects compressed air entrained in the hydraulic fluid flow which upon opening of the inlet valve expands to displace a portion of the volume of flow of hydraulic fluid required for actuation of the operating cylinder.

REFERENCES:
patent: 2566381 (1951-09-01), Svenson
patent: 3321909 (1967-05-01), Gordon
patent: 3375760 (1968-04-01), Taplin
patent: 4458791 (1984-07-01), Schneider et al.
patent: 5096400 (1992-03-01), Budecker et al.
Ruckblick auf die Deutsche Industriemesse Hannover 1960, Dr. Ing A. Welte, pp. 375-388, Dec. 1060.

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