沙特阿拉伯、阿联酋等高温沙漠地区的气候特点是风沙大、光照强、气温高,某些沙漠地区夏季白天温度经常在40℃以上,有时甚至能达到60℃左右。在这种恶劣的工况下施工的工程机械,经常发生发动机水温过高、散热器损坏、密封件老化和胶管破损渗油等一系列故障。目前,国内生产的工程机械的环境适应温度一般在-35～40℃之间, Saudi Arabia, the United Arab Emirates and other high-temperature desert climate is characterized by large sandstorm, strong light, high temperatures, summer temperatures in some desert areas during the daytime often above 40 ℃, and sometimes even up to 60 ℃. In this harsh conditions of construction machinery, often occur engine water temperature is too high, the radiator damage, seal aging and hose damage oil leakage and a series of failures. At present, the environment of domestic construction machinery to adapt to the temperature generally between -35 ~ 40 ℃,