Patent ID: 6804996
Filing Date: 2004-10-19
Classification: G01M

Abstract:
A testing apparatus for use in rapidly cooling an engine coolant for use in a liquid cooled engine, the testing apparatus comprising:a liquid nitrogen heat exchanger; a pump in fluid communication with an outlet of the engine; a valve in fluid communication with an outlet of the pump; wherein the valve is adapted to direct engine coolant flowing from the pump to flow in a first direction if the temperature of the engine coolant is above a predetermined value, and wherein the valve is adapted to direct the engine coolant to flow in a second direction if the temperature of the coolant is below the predetermined valve, wherein when the engine coolant is directed to flow in the second direction, the engine coolant is directed into the liquid nitrogen heat exchanger; and a liquid heat exchanger having an inlet adapted to receive engine coolant directed to flow in the first direction by the valve, and an outlet in fluid communication with the engine.