Hydrostatic Variable Displacement Pump Which Can Be Set In Either Direction Of Displacement

摘要

A hydrostatic variable displacement pump (2) has a displacement volume set by an electro-hydraulic control device (10) provided with a safety function. In a fault scenario, the variable displacement pump (2) is set to a neutral position. The electro-hydraulic control device (10) has a single electro-hydraulic setpoint encoder (30) to specify the setpoint of the displacement volume of the variable displacement pump (2) and an electrically actuatable valve device (35) connected in series downstream of the setpoint encoder (30), by which the direction of displacement of the variable displacement pump (2) is controlled and which is provided with the safety function.

主权项

1. A hydrostatic variable displacement pump, comprising:
an electro-hydraulic control device comprising a single electro-hydraulic setpoint encoder configured to specify a setpoint of a displacement volume of a variable displacement pump; and an electrically actuatable control valve located in series downstream of the setpoint encoder, by means of which displacement directions of the variable displacement pump are controlled and which includes a safety function such that in a fault scenario the variable displacement pump is set to a neutral position in which the displacement volume is zero.