An Experimental Study on the Metal Surface Temperature and Heat Transfer by Improving Gasoline Engine Cooling Passages

가솔린엔진의 냉각계 유로 변경을 통한 금속면 온도 및 전열에 관한 실험적 연구

  • 이재헌 (현대자동차 파워트레인연구소) ;
  • 류택용 (현대자동차 파워트레인연구소) ;
  • 신승용 (현대자동차 파워트레인연구소) ;
  • 최재권 (현대자동차 파워트레인연구소)
  • Published : 2002.01.01

Abstract

Metal surface temperatures around the combustion chamber in a gasoline engine directly affect thermal durability and performance of the engine. Metal surface temperatures are influenced by many cooling factors such as drilled water passage, deflector, combustion chamber wall thickness, pillar, and coolant flow pattern. The object of this study is to learn how the coolant passages and coolant flow pattern in an engine influence to the engine metal surface temperature at engine full load and speed. From the test result, it is suggested a plan to reinforce the engine stiffness and to reduce the thermal stress simultaneously. Also, approaches are introduced to reduce the thermal load on the engine by adjusting the discharging direction from the water pump and by optimizing the water transfer holes in the cylinder head gasket. These methods and the optimized engine cooling system, which were suggested in this paper, were adapted for an engine in progress to eliminate the exhaust valve seat wear.

Keywords

References

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