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US 4,034,653 AGranted
Axial piston motor
OwnerArthur F. Andersoninventor
Life of this patent
Estimating the term…
Abstract
An axial piston motor having a fixed spindle and a rotatable assembly to which is secured a wheel or the like, wherein the motor is disposed within the wheel with the thrust races being removably secured to the angle plates and having a pair of spaced relief ports disposed opposite the inlet port and the outlet port respectively which are fluidly connected to the opposite port for balancing the load of the rotor assembly on the spindle thus providing a fixed clearance between the assembly and the spindle.
Claims9
An axial piston motor comprising:
- a fixed spindle having at least one annular bearing groove formed therein and including a plurality of axial aligned needle bearings disposed in said groove;
- at least one angle plate secured to said spindle and having a bearing wall disposed at an angle to the axis of the plate;
- a thrust race detachably mounted on said angle plate and disposed parallel to said bearing wall;
- a rotor assembly means rotatably mounted on said spindle, said assembly including an annular sleeve rotatably mounted on said needle bearings and a rotor mounted on said annular sleeve having a plurality of cylinder bores formed therethrough;
- a plurality of pistons mounted in said plurality of cylinder bores in said rotor and coactable with said thrust race;
- fluid conduit means fluidly communicable with said pistons for carrying fluid to and from said pistons to cause said pistons to coact with said thrust race for rotating said assembly;
- pressure balancing means formed in said spindle in fluid communication with said fluid conduit means;
- and
- said pressure balancing means comprises at least one relief hole formed diametrically through said spindle.
6 more elements
An axial piston motor comprising:
- a fixed spindle;
- at least one angle plate secured to said spindle and having a bearing wall disposed at an angle to the axis of the plate;
- a thrust race detachably mounted on said angle plate and disposed parallel to said bearing wall;
- a rotor assembly means rotatably mounted on said spindle;
- a plurality of pistons mounted in said assembly and coactable with said thrust race;
- fluid conduit means fluidly communicable with said pistons for carrying fluid to and from said pistons to cause said pistons to coact with said thrust race for rotating said assembly;
- said angle plate having a collar projecting inwardly therefrom to form a recess behind said bearing wall;
- and said thrust race is annular and in cross section L-shaped, wherein said L-shape provides a base leg connected to a bearing leg and the free end of said base leg coacts with said recess to detachably lock said thrust race to said angle plate.
5 more elements
Dependencies are inferred from the claim text.