Abstract: In a swash-plate type hydrostatic piston engine, a drive unit (10) and a swash plate (17) are received by a pot-shaped housing (1b). According to the invention, the pot-shaped housing (1b) is configured such that it is able to receive drive units (10a, 10b) of at least two rated quantities of a specific product series of the hydrostatic piston engine.

Abstract: The invention relates to a hydrostatic piston engine comprising a cylinder barrel (43) inside of which a first group of cylinder bores (53.1) and a second group of cylinder bores (53.2) are made. The cylinder bores of the first group (53.1) can be connected to a first hydraulic circuit, and the cylinder bores of the second group (53.2) can be connected to a second hydraulic circuit. The cylinder bores of the first group (53.1), and the cylinder bores of the second group (53.2) are realized in the cylinder barrel (43) on a shared partial circuit (76).

Abstract: In a swash-plate type hydrostatic piston engine, a drive unit (10) and a swash plate (17) are received by a pot-shaped housing (1b). According to the invention, the pot-shaped housing (1b) is configured such that it is able to receive drive units (10a, 10b) of at least two rated quantities of a specific product series of the hydrostatic piston engine.

Abstract: The invention relates to a connection block for a hydrostatic piston machine which is provided for simultaneous operation in a first hydraulic circuit and a second hydraulic circuit. A first working pressure duct (60) and a second working pressure duct (61) are formed in the connection block, via which ducts respectively a first and a second working line (7, 8) of the first hydraulic circuit can be connected to respectively a first and a second kidney-shaped control port of a control plate (52) of the hydrostatic piston machine. Furthermore, a third working pressure duct (62) and a fourth working pressure duct (63) are formed in the connection block (25), via which ducts respectively a third and a fourth working line (7?, 8?) of the second hydraulic circuit can be connected to respectively a third and a fourth kidney-shaped control port (70?, 71?) of the control plate of the hydrostatic piston machine.

Abstract: The gear pump unit (100) comprises a pump cover (1), an internal rotor (16) mounted rotatably in a recess (9) of the pump cover (1) and formed in a rotationally fixed manner on a driven plug-in shaft (11), and an external rotor (19), which is rotatably mounted in the recess (9) of the pump cover (1) eccentrically relative to the axis of rotation (A) of the internal rotor (16). The external rotor (19) is in mesh with the internal rotor (16) only in a first angle-of-rotation range (?). In a second angle-of-rotation range (?) lying opposite the first angle-of-rotation range (?), the internal rotor (16) is in contact with an inner surface (25) of a web (23), which is disposed in the recess (9). The outer surface (26) is in contact with the external rotor (19). After closing of the recess (9) by a cover plate (27) fastened to the pump cover (1), an admission pressure chamber (21) and a low-pressure chamber (22) are therefore formed in the recess (9).

Abstract: The invention relates to a reversible axial piston machine (1) consisting of a cylinder drum (5) which rotates about a rotational axis (7) and in which pistons can be displaced in cylinders (6), said pistons being supported against an inclined surface (8). The angle of adjustment (?1, ?2) of the inclined surface (8) can be adjusted in both pivoting directions by means of a control piston (24) pertaining to the adjusting device (12), said control piston extending essentially parallel to the direction of the rotational axis (7) of the cylinder drum (5). The zero position of the adjustment of the inclined surface (8) can be adjusted without play by means of a zero position adjusting device (32).

Abstract: The invention relates to a connection block for a hydrostatic piston machine which is provided for simultaneous operation in a first hydraulic circuit and a second hydraulic circuit. A first working pressure duct (60) and a second working pressure duct (61) are formed in the connection block, via which ducts respectively a first and a second working line (7, 8) of the first hydraulic circuit can be connected to respectively a first and a second kidney-shaped control port of a control plate (52) of the hydrostatic piston machine. Furthermore, a third working pressure duct (62) and a fourth working pressure duct (63) are formed in the connection block (25), via which ducts respectively a third and a fourth working line (7?, 8?) of the second hydraulic circuit can be connected to respectively a third and a fourth kidney-shaped control port (70?, 71?) of the control plate of the hydrostatic piston machine.

Abstract: The gear pump unit (100) comprises a pump cover (1), an internal rotor (16) mounted rotatably in a recess (9) of the pump cover (1) and formed in a rotationally fixed manner on a driven plug-in shaft (11), and an external rotor (19), which is rotatably mounted in the recess (9) of the pump cover (1) eccentrically relative to the axis of rotation (A) of the internal rotor (16). The external rotor (19) is in mesh with the internal rotor (16) only in a first angle-of-rotation range (?). In a second angle-of-rotation range (?) lying opposite the first angle-of-rotation range (?), the internal rotor (16) is in contact with an inner surface (25) of a web (23), which is disposed in the recess (9). The outer surface (26) is in contact with the external rotor (19). After closing of the recess (9) by a cover plate (27) fastened to the pump cover (1), an admission pressure chamber (21) and a low-pressure chamber (22) are therefore formed in the recess (9).

Abstract: The invention relates to a reversible axial piston machine (1) consisting of a cylinder drum (5) which rotates about a rotational axis (7) and in which pistons can be displaced in cylinders (6), said pistons being supported against an inclined surface (8). The angle of adjustment (?1, ?2) of the inclined surface (8) can be adjusted in both pivoting directions by means of a control piston (24) pertaining to the adjusting device (12), said control piston extending essentially parallel to the direction of the rotational axis (7) of the cylinder drum (5). The zero position of the adjustment of the inclined surface (8) can be adjusted without play by means of a zero position adjusting device (32).

Abstract: A dual pump unit comprising two hydraulic pumps (2,3) with coaxially mounted drive shafts (4,5) that are coupled to each other in a non-positive fit by means of a coupling member (28). The coupling member (28) surrounds a connecting member (15), wherein high pressure lines (29,30) and low pressure lines (31,32) are formed. The connecting member (15) extends between two control bodies (33) that are respectively associated with one hydraulic pump (2,3) and which are used to create a cyclic connection between the cylinders (18,19) of the hydraulic pumps (2,3) and the high pressure lines (29,30) and low pressure lines (31,32). The connecting member (15) consists of two connector plates (13,14) defining one of the hydraulic pumps (2,3) respectively on the control bodies (33,43) and an individually formed interchangeable intermediate element (38) arranged between the connector plates (13,14).