Rotary radial piston machine with radial extension on the piston shoe ends
OwnerKarl Eickmanninventor
Life of this patent
Estimating the term…
Abstract
A rotor is rotatably mounted in a housing and formed with angularly spaced radially oriented cylinder bores in each of which a piston is radially reciprocable. The radially outer end of each piston is formed with an inwardly extending recess having a length greater than the length of the piston stroke. A control ring which is eccentric relative to the rotor surrounds the latter, and its inner circumferential surface is slidingly contacted by respective piston shoes each of which is associated with one of the pistons and each of which has a shaft that is freely received in the recess of the associated piston and whose length is also greater than the length of the piston stroke.
Claims11
In a radial-piston fluid-handling machine, a combination comprising a housing;
- a rotor rotatably mounted in said housing and formed with at least two groups of radially oriented working chambers;
- fluid passages communicating with said working chambers;
- at least two groups of pistons, each piston being reciprocably received in a working chamber of one of said groups;
- a common actuator means for said pistons;
- a piston shoe for each of said pistons in engagement with said actuator means, each piston shoe having in axial direction of said rotor an outer end and an inner end, said inner ends of the piston shoes of one group of pistons being located adjacent the inner ends of the piston shoes of the other groups of pistons;
- guide means for retaining said outer ends of said piston shoes;
- and radial extensions on said inner ends and each located adjacent an inner end of a piston shoe of the respective other group of piston.
Dependencies are inferred from the claim text.