Abstract: The disclosure relates to a hydrostatic axial piston machine having a housing, having a drive shaft, to which a flange disc is fastened in a rotationally fixed manner, and having a swash plate, to which a rotor disc, driven by the drive shaft or the flange disc, is rotatably mounted, and having a plurality of displacement units arranged distributed between the flange disc and the rotor disc and around the axis of the drive shaft, each displacement unit comprising a cylinder sleeve and a piston which extends into the cylinder sleeve and has a ball head and a spherical joint head which extends into the cylinder sleeve, wherein during operation, the piston plunges more or less far into the cylinder sleeve.

Abstract: The disclosure relates to a hydrostatic axial piston machine having a housing, having a drive shaft, to which a flange disc is fastened in a rotationally fixed manner, and having a swash plate, to which a rotor disc, driven by the drive shaft or the flange disc, is rotatably mounted, and having a plurality of displacement units arranged distributed between the flange disc and the rotor disc and around the axis of the drive shaft, each displacement unit comprising a cylinder sleeve and a piston which extends into the cylinder sleeve and has a ball head and a spherical joint head which extends into the cylinder sleeve, wherein during operation, the piston plunges more or less far into the cylinder sleeve.

Abstract: An electromagnetically actuated valve with a valve body which is assigned to a valve seat, is mechanically prestressed in a first direction toward a first switching position and can be adjusted by means of a magnetic actuator in a second, opposite direction into a second switching position is disclosed. The valve body has a planar contact surface which can be brought into sealing contact with a surface of the valve seat, which surface is planar at least in sections.

Abstract: A valve-controlled hydrostatic positive displacement machine (DDU) is proposed, with a plurality of cylinder-piston units which are each activatable or deactivatable, via at least one low-pressure valve and via one high-pressure valve, for adjusting a volume flow of the positive displacement machine. According to the invention a valve body of the high-pressure valve is embodied as a valve slide, and operative faces acted upon in or counter to a displacement direction are essentially pressure-balanced.

Abstract: An electromagnetically actuated valve with a valve body which is assigned to a valve seat, is mechanically prestressed in a first direction toward a first switching position and can be adjusted by means of a magnetic actuator in a second, opposite direction into a second switching position is disclosed. The valve body has a planar contact surface which can be brought into sealing contact with a surface of the valve seat, which surface is planar at least in sections.