Hydrostatic Drive System In A Closed Circuit

摘要

A hydrostatic drive system (1) has a hydrostatic pump (3) driven by a drive motor (2) and connected in a closed circuit with a hydrostatic motor (4). The hydrostatic motor (4) drives a consumer (5) and the closed circuit is formed by a first hydraulic connection (6a) and a second hydraulic connection (6b). A hydrostatic accumulator (30) can be connected with at least one of the two hydraulic connections (6a, 6b). A hydrostatic drive unit is located in an accumulator flow path (21) between one of the two hydraulic connections (6a, 6b) and the hydrostatic accumulator (30) and an additional hydrostatic drive unit is located in a tank flow path (22) between the other of the two hydraulic connections (6a, 6b) and a tank (17). The hydrostatic drive unit and the additional hydrostatic drive unit are a hydrostatic dual-flow double drive unit (20) provided in the accumulator flow path (21) and in the tank flow path (22).

主权项

1. A hydrostatic drive system, comprising:
a hydrostatic pump driven by a drive motor and connected in a closed circuit with a hydrostatic motor, wherein the hydrostatic motor is in a drive connection with a consumer, wherein the closed circuit is formed by a first hydraulic connection and a second hydraulic connection; a hydrostatic accumulator connectable with at least one of the hydraulic connections for the storage of energy and the output of energy; a hydrostatic drive unit located in an accumulator flow path between one of the hydraulic connections and the hydrostatic accumulator; and an additional hydrostatic drive unit located in a tank flow path between the other of the two hydraulic connections and a tank, wherein the hydrostatic drive unit and the additional hydrostatic drive unit comprise a hydrostatic dual-flow double drive unit provided with the accumulator flow path between one of the two hydraulic connections and the hydrostatic accumulator and with the tank flow path between the other of the two hydraulic connections and the tank.