Patent ID: 8756931

Claim:
A device for adjusting a swept volume of a hydraulic piston machine of a transverse axis design comprising: a first piston machine ( 1 ) arranged adjacent to a second piston machine ( 2 ), working lines ( 3 ) hydraulically connecting the first and the second piston machines to one another, and a common component ( 4 ) connected to adjustable axles on each of the first and the second piston machines such that the adjustable axles are simultaneously adjusted by movement of the common component ( 4 ); wherein a common component adjuster facilitates adjustment of a position of the common component ( 4 ) into first and second positions, and in the first position of the common component ( 4 ), the first hydraulic piston machine ( 1 ) is adjusted to one of a small and a zero swept volume and the second hydraulic piston machine ( 2 ) is adjusted to one of a large and a maximum swept volume, and, in the second position of the common component ( 4 ), the first hydraulic piston machine ( 1 ) is adjusted to one of a large and a maximum swept volume and the second hydraulic piston machine ( 2 ) is adjusted to one of a small and a minimum swept volume; depending on an input from a first manual input device ( 10 ), the common component ( 4 ) is adjusted in one of a direction toward the first position and in a direction toward the second position; independently of the manual input ( 10 ), the common component ( 4 ) is adjusted, in the direction toward the first position if a predefined pressure is exceed in one of the working lines ( 3 ); an additional manual input device ( 22 ) is provided; and when the additional manual input device ( 22 ) is actuated, the common component ( 4 ) is adjusted in the direction toward the first position as a function of both a pressure in the working lines ( 3 ) and the actuation of the additional manual input device ( 22 ) such that with an unchanged actuation of the manual input device ( 10 ) and with actuation of the additional manual input device ( 22 ), the common component ( 4 ) is adjusted in the direction of the first position at a lower pressure in the working lines ( 3 ) than in a case of the additional manual input device ( 22 ) being un-actuated.