Patent ID: 6283721
Filing Date: 2001-09-04
Classification: F03C,F04B

Abstract:
Adjustable hydrostatic axial piston machine whose angle can be varied by means of a servo-piston (9; 21; 25; 37; 38) to which actuating pressure can be applied and which is connected to an electrohydraulic control valve whose control piston (15; 27; 33) and control sleeve (22; 30; 36; 39) can be moved axially relative to one another, characterized in that the control piston (15; 27; 33) can be adjusted axially by means of a stepper motor engaging a motion transmitting screw that extends axially with respect to the control piston, and the control sleeve (22; 36) is supported in a fashion loaded by fluid pressure on an adjusting mechanism for the angle (9; 7; 29) in order to feed back the angle, and executes an axial stroke in the event of a change in the swash angle.