| 摘要 |
A radial-piston machine has a rotor formed with a plurality of each a piston carrying radial cylinders. Each such piston is formed on its radially outer end with a part-spherical seat and a part-spherical portion of a respective piston shoe that rides on an eccentric cam in the housing is engageable in each seat. Each such piston shoe may move radially into and out of engagement with the respective piston. A pair of end members axially flank the piston shoes to prevent their escape in axial-direction. The piston-engaging portions of the shoes are always engaged radially in said cylinders. The cylinders may have outer portions with a cross-slot extending parallel to the axis of the rotor through said cylinders. The pistons and shoes may embrace each other partially or be radially free of each other, so, that either the connected piston and piston shoe assembly moves radially between end elements associated to the rotor or the pistons and shoes move unconnected to each other radially between said end elements. The piston shoes may have one-two-or three-dimensional free play.
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