Hydraulic pump and piston for such a hydraulic pump
AssigneeHydac Drive Center GmbH
InventorBernd WYKYDAL
Life of this patent
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Abstract
The invention relates to a hydraulic pump, in particular an adjustable axial piston pump, having at least one piston (22) which is movable in a reciprocating manner in a longitudinal direction within a pump housing during operation of the hydraulic pump, said piston (22) having a link head (24) and a piston top (54) opposite the link head (24), and also at least one hollow chamber (60) which is surrounded at least partially by a piston housing (62) which substantially or completely terminates each hollow chamber (60) towards the outside. The invention also relates to a piston (22) for such a hydraulic pump.
Claims13
A hydraulic pump, in particular an adjustable axial piston pump, having at least one piston (22) that can move back and forth in a longitudinal direction (18) inside a pump housing (16) when the hydraulic pump is in operation, having a link head (24) and a piston base (54) lying opposite the link head (24), as well as at least one hollow chamber (60), which is at least partially encompassed by a piston housing (60), which closes, substantially or entirely, the respective hollow chamber (60) to the outside.
Dependencies are inferred from the claim text.