Coolant liquefier has coolant passage with tube inner passage height selected in range from 0.5 to 0.7 millimeters

摘要

A coolant liquefier (10) has: - several tubes (14) containing coolant passages, the tubes being arranged in layers; - a cooling fin (15) that is located between each of the neighbouring tubes; and - collector boxes (11,12) which are located at both longitudinal ends of the tubes and communicate with the coolant passage. The coolant passage has a height in the tube coating direction as a tube inner passage height and the tube inner passage height is selected in a range from 0.35 to 0.8 millimeters. Actually it is selected in a range from 0.5 to 0.7 millimeters.