This paper carried out a comparative analysis with papers on the analysis and analytic research of conventional solenoid. In case the current of solenoid valve is cut off, a flow path is formed from pressure port (Pc) connected with the crankcase of compressor to Ps port. At this time, the size of Pc port hole was so adjusted (Type-2) that it was smaller than 4.0mm(Type-1) of original hole by 0.2mm. After that, it was thought that an effect would be produced on the flow change of refrigerant which came into the solenoid vale, therefore the flow characteristics in moving from Pc port to Ps port was predicted and comparatively analyzed. According to the results of flow analysis, a velocity of approximately 46m/s and 129m/s was shown at the maximum in case of 0.2 and 1.5 MPa in Type-1, and the maximum velocity of approximately 500m/s and 1400m/s was shown in case of Type-2.

Abstract
 1. 서론
 2. 해석 모델 및 조건
  2.1 솔레노이드 밸브 해석 모델
  2.2 Ansys를 이용한 해석
 3. 유동 해석 결과
  3.1 Pc포트 4.0 mm(Type-1)의 해석 결과
  3.2 Pc포트 3.8 mm(Type-2)의 해석 결과
 4. 결론
 후기
 References

• 김한국(국립 공주대학교 대학원 기계공학과) | H. K. Kim
• 조행묵(국립 공주대학교 기계자동차공학부) | H. M. Cho Corresponding Author