Patent ID: 9644644
Date: 2017-05-09
CPC Classifications: F15B

Claim:
1. A hydraulic accumulator, comprising: an accumulator housing having a gas chamber and a fluid chamber; a bellows with a preselected number of pleats located in said accumulator housing and forming a movable separation between said gas chamber and said fluid chamber, said bellows having an interior and an open end; and a spacer device being a separate element being disposed in said accumulator housing in an axially immovable position and being in fluid communication with said interior of said bellows, said spacer device being a pot with a pot opening on said open end of said bellows with a fluid-tight connection between said pot and said bellows, said pot having a pot interior, being defined by a side wall only extending perpendicularly from periphery of a flat base, forming a part of said gas chamber and forming a minimum volume of said gas chamber with said bellows being minimum volume of said gas chamber is selected by selecting a depth of said pot, said side wall being integral with said flat base, said flat base extending perpendicularly to a longitudinal axis of said accumulator housing minimum volume of said gas chamber is selected by selecting a depth of said pot.