Constant pressure sealed fluid storage tank for hydraulic system

Details Constant pressure sealed fluid storage tank for hydraulic system Constant pressure sealed fluid storage tank for hydraulic system

1976-11-22

1977-10-11

Geoghegan, Edgar W.

Power plants

Pressure fluid source and motor

Ram driven by fluid pumped from reservoir

138 30, F15B 106

Patent

active

040528529

ABSTRACT:
A closed rigid tank stores oil or other liquid for use in operating hydraulic jacks or other fluid-driven devices. A flexible bladder within the tank is coupled to a source of compressed air and to an air pressure regulator in order to maintain a constant positive pressure in the tank as the bladder expands and contracts in response to the withdrawal and return of oil. The sealed regulated pressure tank may be smaller, lighter and less costly than the tank structures heretofore used in hydraulic systems and the construction is more adaptable to variations in tank shape and location relative to other system components. Fluid lines which connect the tank and fluid pump may be smaller and the total volume of oil required for the hydraulic system may be reduced.

REFERENCES:
patent: 2337771 (1943-12-01), Roberts
patent: 2492014 (1949-12-01), Spalding et al.
patent: 2597050 (1952-05-01), Audemar

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