| 摘要 |
An axial-piston pump includes a rotatable cylinder barrel having pistons extending from piston bores formed at one end thereof, each piston connected to a shoe by snap-fit joint. A groove/throttle arrangement at the joint provides controlled fluid, depending on its angle of flexion. A spherical, concave swashplate, includes an inclined surface and a spherical, internally form-locked retaining mechanism with two degrees of freedom for engaging and reciprocating the pistons upon rotation of the cylinder barrel. A valve plate, adjacent the end of the cylinder barrel furthest from the swashplate, controls the ingress and egress of the fluid from the piston bores through channels which are tilted towards the centerline and in circumferential direction, reducing the velocity and turbulence of the flow and counterbalancing a tilting moment at the cylinder barrel. The valve plate contains pressure compensating ports to reduce compression losses and delay the pressure adaptation. The swashplate swivels about two axes such that the piston intake stroke begins at top dead-center.
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