Fluid handling – Systems – Multi-way valve unit
Patent
1977-07-07
1978-09-12
Cohan, Alan
Fluid handling
Systems
Multi-way valve unit
251175, 251185, F16K 1102
Patent
active
041129733
ABSTRACT:
Control arrangement for a reversible hydrostatic axial or radial piston machine comprises a fluid guiding outer annular space surrounding a control body consisting of an eccentric disk connected to the shaft of the machine for rotation therewith and an inner control ring which is freely turnable on the periphery of the disk, as well as an outer control ring telescopingly and sealingly guided on the inner control ring, in which the rings are hydraulically and by spring pressed apart in axial direction, with one of the control rings engaging with an end face thereof a planar control face of the machine and the other of the control rings engages with an end face thereof a planar support face, which is axially spaced from and parallel to the planar control face, and wherein the eccentric disk has a hub surrounding the shaft and having an end face which, supported by the force of a spring, is hydraulically pressed against the control face, whereby the disk with the end face on its hub and one of the control rings with its end face pressed against the support face limit a fluid guiding inner annular space which is sealed towards the shaft.
REFERENCES:
patent: 3584648 (1971-06-01), Lubos
patent: 3626981 (1971-12-01), Nilsen
Cohan Alan
G. Duesterloh GmbH
Striker Michael J.
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