| 摘要 |
PROBLEM TO BE SOLVED: To provide a refrigerant control valve with a charge port preventing an eddy current of refrigerant inside the valve and noise generated by the eddy current. SOLUTION: In the refrigerant control valve with the charge port, the charge port is screwed in and communicated with a refrigerant passage inside a valve body, and it is composed so that a ring like collar with a hole for a gas passage opened in a center part is fit in a space part between a screwed in tip of the charge port and the refrigerant passage. By filling the space part between the tip of the charge port and the refrigerant passage by the ring like collar and reducing size of a recess formed by the space part to the refrigerant passage, it becomes hard for the refrigerant to flow into the recess, frequency of generated noise exceeds an audible range, and generation of unpleasant noise is resolved. |
