Arbeitsmaschine

Details

Veröffentlichungs-Nr.

EP4768738

Anmeldetag

19. August 2024

Veröffentlichung

6. März 2025

Rechtsraum

EP

Abstract

To provide a working machine to improve responsiveness at low temperature. A working machine (1) includes a first outlet port (P1) and a second outlet port (P2) to allow hydraulic fluid to flow out therefrom, a plurality of first hydraulic actuators (A1) to be supplied with hydraulic fluid from the first outlet port, a plurality of second hydraulic actuators (A2) to be supplied with hydraulic fluid from the second outlet port, a load pressure selection valve (V15) to receive input of a load pressure on the plurality of first hydraulic actuators and a load pressure on the plurality of second hydraulic actuators, and output a highest load pressure which is higher one of the load pressure on the plurality of first hydraulic actuators and the load pressure on the plurality of second hydraulic actuators, a regulator (20) to receive input of the highest load pressure output from the load pressure selection valve and control a discharge rate of the hydraulic fluid from the first outlet port and a discharge rate of the hydraulic fluid from the second outlet port according to the input highest load pressure, a passage throttle (43) provided in a load pressure transmission passage (x3) provided between the regulator and the load pressure selection valve, and a bleed path (45) to allow a portion of the hydraulic fluid in a segment passage (44) to escape to a destination other than the regulator, the segment passage being a portion of the load pressure transmission passage that is located between the load pressure selection valve and the passage throttle.

Anmelder

Firma

KUBOTA CORPORATION

Land

🇯🇵 Japan