| 摘要 |
PURPOSE:To reduce the passage resistance by making the inside diameter size of a guide pipe on the compressor side of the step provided in a guide pipe case equal to or smaller than that of a refrigerant passage pipe connected and by making the inside diameter of the refrigerant passage pipe large. CONSTITUTION:A guide pipe 21 connected to a suction pipe 22 is provided with a step 23 where its inside diameter size is changed in a closed case 1. The inside diameter size d of the guide pipe 21 on the compressor 5 side of the step 23 is made equal to or smaller than that D of the suction pipe 22. Thereby, the inside diameter size of the suction pipe 22 can be made large, and the passage resistance of the refrigerant can be reduced. In addition, when the inside diameter size d on the compressor 5 side of the step 23 is made equal to that D of the suction pipe 22, the passage resistance of the refrigerant flowing from the suction pipe 22 into the guide pipe 21 can be also reduced, resulting in a smooth supply of the refrigerant into the compressor 5. |
