| 摘要 |
PROBLEM TO BE SOLVED: To reduce a manufacturing cost of an ejector. SOLUTION: A nozzle 410 is composed of cylindrical first to third refrigerant passage parts 411 to 413 having a constant passage diameter, and a divergent taper part of a diffuser is disused. Thus, since the ejector 400 is easily manufactured only by cutting work such as drill work, the manufacturing cost of the ejector is reduced.
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