US 12,162,346 B2 · Working vehicle

Abstract

A working vehicle includes a first hydraulic pump (e.g., a variable displacement pump) with a delivery flow rate controlled by load sensing control, a second hydraulic pump (e.g., a fixed displacement pump), at least one working-machine-related control valve to control at least one working-machine-related hydraulic actuator, a power shift valve to control at least one traveling-power-transmission-related hydraulic actuator, and a power steering controller to control a steering-related hydraulic actuator. The at least one working-machine-related control valve is provided in a first hydraulic system supplied with hydraulic fluid by the first hydraulic pump, and at least one of the power shift valve or the power steering controller is provided in a second hydraulic system supplied with hydraulic fluid by the second hydraulic pump.

Claims11

Dependent claims

A working vehicle comprising:

a first hydraulic pump which is a variable displacement pump with a delivery flow rate controlled by load sensing control;
a second hydraulic pump which is a fixed displacement pump;
at least one working-machine-related control valve to control at least one working-machine-related hydraulic actuator;
a power shift valve to control at least one traveling-power-transmission-related hydraulic actuator;
and
a power steering controller to control a steering-related hydraulic actuator;
wherein
the at least one working-machine-related control valve is provided in a first hydraulic system supplied with hydraulic fluid by the first hydraulic pump;
and
at least one of the power shift valve or the power steering controller is provided in a second hydraulic system supplied with hydraulic fluid by the second hydraulic pump.

7 more elements

A working vehicle comprising:

a first hydraulic pump which is a variable displacement pump with a delivery flow rate controlled by load sensing control;
a second hydraulic pump which is a fixed displacement pump;
a vehicle body which houses a transmission shaft to receive power from a power source;
and
a first shaft and a second shaft which are arranged in a vehicle body width direction on one side of the vehicle body to receive power from the transmission shaft;
wherein
the first shaft is farther from the vehicle body than the second shaft is;
and
the first hydraulic pump and the second hydraulic pump face each other in a front-rear direction such that the first hydraulic pump is driven by the first shaft and the second hydraulic pump is driven by the second shaft.

6 more elements

Dependencies are inferred from the claim text.

Working vehicle

Life of this patent

Working vehicle

Life of this patent

Abstract

Claims11