| 摘要 |
A method for detecting trapped air in an engine cooling system includes the steps of delivering a volume of test air pressure under pressure to the radiator of the cooling system, measuring the volume of test air delivered, measuring the pressure of test air delivered, and calculating the volume of trapped air in the cooling system using Boyle's law and the measured volume and pressure of test air. A device for carrying out the method comprises a pump for delivering test air to the radiator, a motor for driving the pump, a pressure gauge or pressure switch for sensing the pressure of test air delivered, and means for determining the volume of test air delivered.
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