Cnh Industrial America LLC

Cnh America LLC

Cnh Industrial Italia S.p.a.

Giuseppina Razetto

Andrea Gravili

Adriano Garramone

Marco Pietro Ciarrocchi

Gianpiero Negri

Massimo Pinto

Paolo Ferracin

Michael Read

A compact wheel loader having a hydrostatic transmission and two modes of operation. In a normal mode, a demand lever is used to set the engine speed, and displacement of the swash plate of the hydraulic pump of the transmission is set by a hydraulic pilot pressure (Ps) that increases with engine speed, so that the transmission ratio automatically decreases as the engine speed increased. In a creeper mode, the engine is set to operate at a high speed to meet the demand of powered implements of the loader, and the wheel speed is controlled by the demand lever setting the transmission ratio by varying the hydraulic pilot pressure (Ps).

Compact wheel loader

A working machine including a movable implement, a hydraulic actuator for displacing the implement, and a hydraulic control system for enabling an operator to control movement of the implement. The control system allows the implement to be returned to a desired position or state, such as a return to dig position or a return to float state, in a single automated operation that is initiated by the operator actuating a switch at the same time as moving a joystick in a desired direction. A pilot-operated valve is used to supply hydraulic fluid under pressure to the actuator acting on the implement and the operation of the joystick is detected by means of a pressure sensor connected to a control line of the pilot-operated valve.

Working machine having a hydraulically operated implement

Roll over protection structure

Growing community of inventors

Turin, Italy

Giuseppina Razetto