发明申请
US20070169743A1 Engine-drive work machine 有权
发动机驱动作业机

Engine-drive work machine
摘要:
An engine-driven work machine having a target engine speed selection unit and a control unit. The target engine speed selection unit selects and specifies an arbitrary target engine speed from among a plurality of target engine speeds that is set in stepwise fashion. The control unit electrically controls the opening and closing of a throttle valve so that the actual engine speed conforms to the specified target engine speed.
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