Diesel engine dme fuel supply device

摘要

A bypass controller ( 30 ) controls ON/OFF of a three-way electromagnetic valve ( 62 ) according to a detection value of a cam chamber sensor ( 12 a). When the cam chamber sensor ( 12 a) detects a viscosity of lubricant exceeding a predetermined allowable value, the three-way electromagnetic valve ( 62 ) is controlled to turn ON so that the output side of an oil separator ( 13 ) communicates with a bypass route ( 61 ). The pressure in the cam chamber ( 12 ) is reduced to or below the atmospheric pressure by suction of a compressor ( 16 ) with a check valve ( 14 ) regulating the pressure in the cam chamber ( 12 ) to the atmospheric pressure or above in the bypassed state. When the detection value of the viscosity of the lubricant output by the cam chamber sensor ( 12 a) has become the predetermined allowable value or below, the three-way electromagnetic valve ( 62 ) is controlled to turn OFF so that the output side of the oil separator ( 13 ) communicates with the check valve ( 14 ) and the bypass route ( 61 ) is cut off.