| 摘要 |
To provide a work machine configuration provided with a closed-circuit pump and an open-circuit pump, wherein the pumping operation of each of the closes-circuit pump and the open-circuit pump can be stabilized and ease of mounting the closed-circuit pump and the open-circuit pump can be enhanced. The present invention is provided with: a closed circuit (A) in which a closed-circuit pump (12) and a boom hydraulic cylinder (1) are annularly connected; and an open circuit (E) having an open-circuit pump (13) for inflow and outflow of hydraulic fluid from a hydraulic fluid tank (25), and connection channels (305a-305d) capable of introducing hydraulic fluid to the closed circuit (A); and the closed-circuit pump (12) is disposed higher than the open-circuit pump (13). |
