Agco Corporation

Agco Gmbh & Co.

Johann Wittman

Richard Heindl

Martin Brenninger

Theodor Bosl

Johann Reisch

Described is a utility vehicle, in particular an agricultural tractor, with a front axle (), which can be driven by a drive element of a first multi-disc clutch (), connected in a driven manner to the drive train () and a power take-off shaft () which can be driven by the drive train () at speed proportionately to the speed of the vehicle over the ground (ground speed power take-off). In order to keep expenditure low on the control of the disc clutch () and the power take-off shaft (), it is proposed that the power take-off shaft can be driven at a speed proportional to the speed of the vehicle over the ground by a second multi-disc clutch () which has a drive element connected in a driven manner to the drive train (), and that both multi-disc clutches () are actuated in common.

Utility vehicle drive train

A power-take-off of a utility vehicle such as an agricultural tractor has a clutch (3) and a brake (18) to retain the output shaft against rotation when the clutch is disengaged. The invention provides a means of automatically disengaging the brake to permit rotation of the output shaft for the purpose of coupling an implement thereto. In one embodiment, the clutch and brake are engaged by fluid under pressure, and are disengaged by stopping the vehicle engine and thus allowing engine generated fluid pressure to decay.

Growing community of inventors

Marktoberdorf, Germany

Johann Wittman