| 摘要 |
<P>PROBLEM TO BE SOLVED: To disable a normal work of an operator when the operator disregards a warning signal requesting inspection of an intake system due to clogging of an air cleaner or the like. <P>SOLUTION: This apparatus includes a pressure sensor 30 provided in at a conduit between an air cleaner 20 and an engine combustion chamber 10, detecting outside air pressure in the conduit, and outputting pressure signal corresponding to the detected pressure; and an electronic control unit 40 comparing the pressure signal input from the pressure sensor with predetermined reference pressure value, outputting warning signal for requiring an operator to check the air cleaner 20 if the pressure signal exceeds the reference pressure value, and lowering the engine revolutions and reducing flow rate from a hydraulic pump 60 if the operator disregards the warning signal and continues work after the transfer of the warning signal. <P>COPYRIGHT: (C)2009,JPO&INPIT |
