Work Machine
AssigneeHitachi Construction Machinery Co., Ltd.
InventorsRyohei FUKUCHI, Katsuaki KODAKA, Mitsuhiko KANEHAMA, Teruki IGARASHI
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AssigneeHitachi Construction Machinery Co., Ltd.
InventorsRyohei FUKUCHI, Katsuaki KODAKA, Mitsuhiko KANEHAMA, Teruki IGARASHI
Estimating the term…
A work machine includes: a first pump and a second pump that are driven by an engine; a hydraulic actuator driven by a hydraulic working fluid supplied from the first pump; a control valve that controls a flow of the hydraulic working fluid supplied to the hydraulic actuator; a solenoid valve that reduces a pressure of the second pump to generate a pilot pressure for operating the control valve; a controller that controls the solenoid valve; an engine operating section that enables operation for activating the engine; and a rotation speed sensor that senses a rotation speed of the engine. The controller applies a drive current to the solenoid valve to drive the solenoid valve when a current application condition is established, the current application condition including that it is assessed, on the basis of a sensing result of the rotation speed sensor, that the engine is in a stopped state, and including that ON operation of the engine operating section is performed in a state where activation operation is not performed by the engine operating section.
A work machine comprising:
Dependencies are inferred from the claim text.