... closed coolingMain parameters for gas engine Model No.H16V190ZLT-2Type4-stroke, water cooling,boosting intercooling, air ... engine driving coupler power set, 4-stroke, water cooling, boosting intercooling, air combustion ratio control, plug ... , crankcase)Protection for high cooling water temperatureIncluded (warning)Protection for high lub.oil temperatureIncluded (warning)Protection for low lub.oil ...