WORKING OIL COOLER OF HYDRAULIC POWER UNIT

摘要

PURPOSE:To have a small-sized cooling device for the working oil and enhance the efficiency of a device by fixing a heat pipe, which penetrates the wall part of high-temperature oil chamber communicating to the external air, to the wall part. CONSTITUTION:A bulkhead 3 furnished partially with an opening 2 is installed in an oil tank 1 to provide a high-temperature oil chamber 4, and the working oil with raised surface level is introduced into this chamber 4 through an oil inlet 5. Only heat of this working oil with raised temperature is quickly sent out to the atmosphere through a heat pipe 7 petentrating and fixed to the wall part 6 of chamber 4 communicating to the external air. Thus the heat is radiated.