Hydropneumatic floating-piston accumulator
AssigneeGesellschaft fuer Hydraulik-Zubehoer mbH
InventorsGunter Peter, Siegfried Klett
Life of this patent
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Abstract
A hydropneumatic accumulator has a separator piston, movable in the chamber of a housing. A switch member is attached to the separator piston by a support for simultaneous movement. Sensors can be influenced by the switch member position. The switch member is surrounded by a tube member which supports the sensors and is attached to the housing. A filling attachment is provided on the tube member. A filling conduit extends within the tube member and adjacent the support to simplify the configuration of the hydropneumatic accumulator.
Claims10
A hydropneumatic accumulator, comprising:
- a tubular housing with a chamber;
- a separator piston movably mounted in said chamber of said housing;
- a tubular piston rod fixedly coupled to and extending axially from said piston for movement simultaneously with said piston, said piston rod having opposite first and second ends with said first end attached to said piston and said second end remote from said piston;
- a switch member mounted on said piston rod at a first distance from said piston;
- a tube member mounted on one end of said housing and surrounding said switch member when said separator piston is in a top position thereof, said tube member having filling means for attaching a filling device to said tube member;
- a filling conduit extending through said tube member and through said piston rod from said first end of said piston rod for conveying fluid into said chamber between said piston and said tube member, said filling conduit including a bore extending radially through said piston rod adjacent said piston and opening into said chamber;
- and
- sensor means, mounted in said tube member, for sensing positions of said switch member in said tube member.
A hydropneumatic accumulator, comprising:
- a tubular housing with a chamber;
- a separator piston movably mounted in said chamber of said housing along a piston axis;
- a tubular piston rod fixedly coupled to and extending axially from said piston for movement simultaneously with said piston, said piston rod having opposite first and second ends with said first end attached to said piston and said second end remote from said piston;
- a switch member mounted on said piston rod at a first distance from said piston;
- a cylindrical tube member mounted on one end of said housing and surrounding said switch member when said separator piston is in a top position thereof, said tube member having filling means for attaching a filling device to said tube member and being coaxially arranged relative to said piston axis;
- a filling conduit extending coaxially through said tube member and through said piston rod from said first end of said piston rod for conveying fluid into said chamber between said piston and said tube member, said filling conduit including a bore extending radially through said piston rod adjacent said first end and opening into said chamber;
- and
- sensor means, mounted in said tube member, for sensing positions of said switch member in said tube member.
Dependencies are inferred from the claim text.