Spring-tensioned piston accumulator with detent function
AssigneeRausch & Pausch GmbH
InventorFrank Lauterbach
Life of this patent
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Abstract
A piston accumulator (10) comprises a pressure chamber (40) which on one side is closed by a piston (50) axially displaceable in a pipe (20) in order to change its volume depending on the axial position of the piston (50). A detent mechanism is provided in order to hold back the piston (50) against a spring preload (190) in a second position differing from a first position. The piston (50) is formed in a multi-part fashion and comprises at least a first piston part (52) and a second piston part (54), wherein at least one of the two piston parts (52) is hardened and disposed to cooperate with the detent mechanism in a catching fashion.
Claims32
A spring-tensioned piston accumulator having detent function, comprising:
- a pressure chamber which on one side is closed by a piston axially displaceable in a pipe for changing the volume of the pressure chamber depending on the axial position of the piston;
- a spring preload which pushes the piston into a first position;
- and
- a detent mechanism for holding back the piston in a second position different from the first position against the spring preload,
- wherein the piston is formed in a multi-part fashion and comprises at least a first piston part and a second piston part, wherein at least one of the two piston parts is hardened and is disposed to cooperate with the detent mechanism in a catching fashion.
Dependencies are inferred from the claim text.