Radial piston machine with shaft radial position stroke control
AssigneeG. Dusterloh GmbH
InventorDieter Schneeweiss
Life of this patent
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Abstract
A hydraulic radial piston machine with steplessly adjustable volumetric displacement and piston stroke has a bank of pistons with axes in a common plane transverse to the shaft and machine axes. A radially displaceable supporting member pivotably connected to a shaft longitudinal portion turnable from the machine longitudinal axis supports the pistons. The longitudinal portion is pivotably connected at one end to a further longitudinal shaft portion. The second end connects to a turning link transmission which rotates. Rotation of the first--mentioned longitudinal shaft portion causes the supporting member to travel a circular path around the machine axis. A force--loaded translating operating displacing member steplessly varies the diameter of this circle to steplessly adjust piston stroke.
Claims10
A fluid radial piston machine, particularly a hydraulic radial piston machine, comprising a plurality of working pistons having central axes arranged in a common transverse plane extending transversely to the longitudinal axis of the machine;
- a supporting member on which said working pistons slidingly lie at least directly;
- a force-loaded translating operating displacing member;
- a machine shaft connected with said supporting member, said supporting member being displaceable radially relative to said machine shaft, said machine shaft having a longitudinal portion which extends through said transverse plane and is turnable from said longitudinal axis of the machine under the action of said displacing member, said longitudinal portion being pivotably connected with said supporting member, said machine shaft having a further longitudinal portion which is rotatable about said longitudinal axis of the machine and axially non-displaceable, said first-mentioned longitudinal portion of the machine shaft having a first end which coincides with said longitudinal axis of the machine and is pivotably connected with said further longitudinal portion of said machine shaft, said first-mentioned longitudinal portion of said machine shaft having a second end which is radially displaceable from said longitudinal axis of the machine and is located at an opposite side of said common transverse plane, relative to said first end;
- and a turning link transmission which is supported rotatably about said longitudinal axis of the machine and has turning axes extending normally to said longitudinal axis of the machine, said second end of said first mentioned longitudinal portion of said machine shaft, which is located at an opposite side of said common transverse plane, being connected with said turning link transmission so as to rotate together with the latter.
Dependencies are inferred from the claim text.