Sauer-danfoss Inc.

Danfoss Power Solutions Aps

Dietmar Weiss

Tom Tychsen

Per Nielsen Lindholdt

The invention concerns a fluid rotary machine () with a housing (), a shaft () led out of the housing () and a sensor arrangement () comprising a transmitter () in active connection with the shaft (), and a receiver (). It is endeavored to arrange the sensor arrangement in an advantageous manner on the fluid rotary machine. For this purpose, the sensor arrangement () comprises an accommodation area, in which the transmitter () is arranged, the accommodation area being in fluid connection with the inside of the housing () and sealed towards the outside, and the receiver () is arranged outside the housing () and the accommodation area.

Fluid rotary machine with a sensor arrangement

A variable displacement axial piston machine. The variable displacement axial piston machine includes a cylinder block with at least one main cylinder and main piston, a swash plate, a plunger arrangement with a plunger and auxiliary cylinder, and a sensor. The swash plate is arranged to effect movement of the main piston in the main cylinder upon rotation of the swash plate relative to the cylinder arrangement. The plunger is arranged to tilt the swash plate relative to the cylinder arrangement and to control a stroke of the main cylinder in the main piston. To provide a simple and reliable measurement of displacement of the main piston in the main cylinder, the invention provides a sensor element which is fixed in the auxiliary cylinder and which is adapted to sense movement of the plunger therein.

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Aabenraa, Denmark

Dietmar Weiss