Hydrostatic axial piston machine with a control port, a cradle supported swashplate and a swashplate actuating piston
AssigneeLinde Aktiengesellschaft
InventorFranz Forster
Life of this patent
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Abstract
A hydrostatic axial piston machine has a cylinder block with bores holding reciprocating pistons, a swashplate supporting the pistons, and control cams to supply the bores with hydraulic fluid. The swashplate is a pivoting cradle mounted on friction bearings in a cradle receptacle. Hydraulic fluid channels empty into the cradle receptacle and are in communication with supply channels in the cradle connected to the control cams. An actuator piston to adjust the cradle is located between two friction bearing segments of the cradle receptacle and has a toothed rack segment engaging a gearing segment on the back side of the cradle.
Claims18
A hydrostatic axial piston machine, comprising:
- a cylinder block having bores with reciprocating pistons, wherein each piston has a passageway;
- and
- a swashplate on which the reciprocating pistons are supported and in which there are control ports to control supply of hydraulic fluid between the swashplate and the passageway of each piston to supply hydraulic fluid to its respective bore, wherein the swashplate is adjustable.
A hydrostatic axial piston machine, comprising:
- a cylinder block having bores with reciprocating pistons;
- a swashplate on which the reciprocating pistons are supported and in which there are control ports to supply the bores with hydraulic fluid, wherein the swashplate is adjustable and is a pivoting cradle mounted on friction bearings in a cradle receptacle, wherein hydraulic fluid channels empty in the cradle receptacle and, regardless of the rotational position of the cradle, are in communication with supply channels in the cradle which are connected to the control ports;
- and
- means to pivot the cradle, wherein the pivot means comprise an actuator piston that is substantially perpendicular to an axis of rotation of the cylinder block and substantially perpendicular to an axis of rotation of the cradle and is connected with the cradle.
Dependencies are inferred from the claim text.