Abstract This invention relates to a pressure vessel of the type having a rigid container to be filled with fluid, usually oil and gas under pressure and having a deformable partition intervening between such fluids and more particularly relates to a pressure accumulator of relatively large size in the order of say 40gallon capacity and which is extremely heavy and in the order of say 300 to 400 pounds. The partition is a bladder closed at one end and having an open mouth at its other end. The container has longitudinally aligned ports at opposed ends and is designed to be mounted in vertical position with the upper port receiving a gas fitting to which the mouth of the bladder is secured, for charging of the bladder with gas under pressure and the lower port having an oil fitting for charging the container with a fluid such as oil under pressure. The oil fitting has a mounting flange associated therewith to permit rigid mounting of the container in upright position on a suitable complementary flange that is connected to a source of oil under pressure such as an oil line. The gas fitting is mounted in the upper port so that it may readily be removed together with the bladder without need to disconnect the accumulator from the oil line and without need to handle the heavy accumulator.
A hydraulic system comprising a pressure vessel adapted to be connected to a source of fluid under pressure, and mounted in vertical position, said pressure vessel weighing at least in excess of about 300 pounds and comprising a rigid container having axially aligned ports at opposed ends thereof defining respectively a gas port at the upper end of said container and a liquid port at the lower end of said container, a deformable and expansible bladder in said container intervening between said ports, said bladder having a mouth at one end, a gas charging fitting secured in the mouth of said bladder and extending outwardly therefrom, means releasably mounting said fitting in the gas port of said container, said means comprising an annular shoulder associated with said fitting and of diameter slightly less than the diameter of the opening in said port, a locking member encompassing said fitting and having an outer diameter greater than that of said port and an inner diameter less than the outer diameter of said shoulder, said locking member intervening between said shoulder and the periphery of said port with said shoulder abutting againsT said locking member, said locking member being conformed to permit introduction thereof into said container and such seating, a sleeve secured in the liquid port of said container and extending outwardly therefrom, axially aligned with said fitting, and mounting means associated with said sleeve for connection of the latter to said source of fluid under pressure with said sleeve and said container in substantially vertical position.
Claim 2
Dependent Claim
255 words
A hydraulic system comprising a pressure vessel adapted to be connected to a source of fluid under pressure, and mounted in vertical position, said pressure vessel weighing at least in excess of about 300 pounds and comprising a rigid container having axially aligned ports at opposed ends thereof defining respectively a gas port at the upper end of said container and a liquid port at the lower end of said container, a deformable and expansible bladder in said container intervening between said ports, said bladder having a mouth at one end, a gas charging fitting secured in the mouth of said bladder and extending outwardly therefrom, means releasably mounting said fitting in the gas port of said container, said means comprising an annular shoulder associated with said fitting and of diameter slightly less than the diameter of the opening in said port, a locking member encompassing said fitting and having an outer diameter greater than that of said port and an inner diameter less than the outer diameter of said shoulder, said locking member intervening between said shoulder and the periphery of said port with said shoulder abutting againsT said locking member, said locking member being conformed to permit introduction thereof into said container and such seating, a sleeve secured in the liquid port of said container and extending outwardly therefrom, axially aligned with said fitting, and mounting means associated with said sleeve for connection of the latter to said source of fluid under pressure with said sleeve and said container in substantially vertical position.