Agco Corporation

Gunther Groger

Robert Honzek

Richard Heindl

Theodor Bosl

A system operated by what is referred to as a clutch pedal, which adjusts the traction power of an infinitely variable, hydrostatic-mechanical transmission. The transmission contains at least one pump (,) and at least one motor (,), arranged in a hydraulic circuit. In order to reduce the traction power, pressure is leaked between the two sides of the motor (,) by reducing the pressure at the control parts (,) of two proportional valves (,) in respective lines bridging the motor (,). The control parts (,) of the proportional valves (,) are connected via a shift valve (,) to an intermediate valve (,), the closing force of which is reduced as the clutch pedal (,) is opened by means of a closing spring (,).

Growing community of inventors

Lengenwang, Germany

Gunther Groger