Piston machine
OwnerLars Gunnar Westmaninventor
Life of this patent
Estimating the term…
Abstract
The axial piston machine may be used as a hydraulic pump or hydraulic motor. A rotor of the piston machine includes an outer part having a spherical inner surface and an inner part having a corresponding spherical outer surface. The inner part has a plurality of elongate grooves defined therein to seat pistons therein. A plurality of piston members protrude into the pistons. A sleeve member is disposed inside the inner part. The sleeve member has a plurality of openings defined therein that are connected to chambers in an alternating fashion. The sleeve member may be turned sideways to adjust the position of the inner part relative to the outer part to set the operational volume of the piston machine.
Claims6
An axial piston machine that is usable as a hydraulic pump and hydraulic motor, comprising:
- a housing;
- a rotatable rotor having an outer portion disposed inside the housing, the outer portion having a spherical inner surface;
- an inner part having a spherical outer surface defining a plurality of grooves that are arranged in a ring shape, axial pistons disposed in the grooves, the pistons being movable back and forth along the grooves, the outer portion supporting the pistons;
- and
- an adjustment mechanism in operative engagement with the inner part for adjusting a tilt angle to set an operational volume of the piston machine.
Dependencies are inferred from the claim text.