Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
330 words
An axial piston machine, preferably an axial piston pump of the inclined disc or skew axis type, with a cylinder which rotates about an axis of rotation and in which, on a pitch circle, several pistons are movable guided in piston bores extending substantially along the axis of rotation, by means of an inclined or driving disc, or the like, the piston bores opening at the face of the cylinder which is remote from the inclined or driving disc, the face resting against a control surface in which there are arranged control openings, positioned on the pitch circle of the pistons which, in set positions of rotation of the cylinder, are covered by the openings of the piston bores, loading cylinders being distributed over the circumference and acting upon the cylinder against the control surface, and of which loading cylinders the working spaces are connected, by means of connecting channels, each with a respective piston bore, and the cylinder being mounted on a drive shaft in an axially slidable manner, spring-loadable in the direction of the control face and supported radially, directly or indirectly, against a support mounting which is fixed relative to the housing and which is spaced axially from the control surface, characterized in that the piston bores open, without narrowing of cross section, at said face; in that said face is spherically concave and the control surface is correspondingly spherically convex; in that the axial portion of a control surface force, which acts upon the cylinder in the direction of the inclined or driving disc, counterbalances the loading force which acts upon the cylinder in the opposite direction; and in that the size of the radius of the control surface is such that the intersecting point of the control surface force perpendicular to the control surface and of the loading force lies in a plane which extends transversely to the axis of rotation and which is arranged in the region of the support mounting of the cylinder.
Claim 2
Dependent Claim
330 words
An axial piston machine, preferably an axial piston pump of the inclined disc or skew axis type, with a cylinder which rotates about an axis of rotation and in which, on a pitch circle, several pistons are movable guided in piston bores extending substantially along the axis of rotation, by means of an inclined or driving disc, or the like, the piston bores opening at the face of the cylinder which is remote from the inclined or driving disc, the face resting against a control surface in which there are arranged control openings, positioned on the pitch circle of the pistons which, in set positions of rotation of the cylinder, are covered by the openings of the piston bores, loading cylinders being distributed over the circumference and acting upon the cylinder against the control surface, and of which loading cylinders the working spaces are connected, by means of connecting channels, each with a respective piston bore, and the cylinder being mounted on a drive shaft in an axially slidable manner, spring-loadable in the direction of the control face and supported radially, directly or indirectly, against a support mounting which is fixed relative to the housing and which is spaced axially from the control surface, characterized in that the piston bores open, without narrowing of cross section, at said face; in that said face is spherically concave and the control surface is correspondingly spherically convex; in that the axial portion of a control surface force, which acts upon the cylinder in the direction of the inclined or driving disc, counterbalances the loading force which acts upon the cylinder in the opposite direction; and in that the size of the radius of the control surface is such that the intersecting point of the control surface force perpendicular to the control surface and of the loading force lies in a plane which extends transversely to the axis of rotation and which is arranged in the region of the support mounting of the cylinder.
Claim 3
Dependent Claim
40 words
An axial piston machine of the inclined disc type, according to claim 1, characterised in that said plane and the support mounting are arranged in the region of the end of the cylinder which is remote from the control surface.
Claim 4
Dependent Claim
26 words
An axial piston machine of the inclined axis type, according to claim 1, characterised in that said plane extends in the region of the driving disc.
Claim 5
Dependent Claim
31 words
An axial piston machine, according to claim 1, characterised in that said plane and the wobble plane of the inclined disc or driving disc cross at the axis of ro- tation.
Claim 6
Dependent Claim
22 words
An axial piston machine, according to claim 1, characterised in that the piston bores extend in a straight line through the cylinder.
Claim 7
Dependent Claim
26 words
An axial piston machine, according to claim 1, characterised in that axes of the pistons and piston bores converge in the direction of the control surface.
Claim 8
Dependent Claim
39 words
An axial piston machine, according to claim 1, characterised in that in at least some of the loading cylinders evenly divided around the circumference there are positioned springs which load the cylinder in the direction of the control surface.
Claim 9
Dependent Claim
28 words
An axial piston machine, according to claim 1, characterised in that the loading pistons of the loading cylinders are supported against the housing through slip or bearing rings.
Claim 10
Dependent Claim
20 words
An axial piston machine, according to claim 1, characterised in that there is a respective loading cylinder for each piston.
Claim 11
Dependent Claim
35 words
An axial piston machine, according to claim 1, characterised in that the loading cylinders are offset by an angle (w 1 ), with respect to the pistons and piston bores in the direction of rotation.