EJECTOR, EJECTOR PRODUCTION METHOD, AND METHOD FOR SETTING OUTLET FLOW PATH OF DIFFUSER
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United States of America Patent
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Issued Date -
Jan 31, 2019
app pub date -
Sep 28, 2018
filing date -
Apr 1, 2016
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Abstract
An ejector includes a nozzle, a suction chamber, and a diffuser. An outlet flow path includes a narrowed flow path having a first tapered surface narrowed toward downstream, a parallel flow path having a constant sectional area, and a parallel flow path having a second tapered surface expanded toward downstream. The diffuser further includes an attachment configured to change the dimensions of the outlet flow path. The attachment changes the dimensions of the outlet flow path such that the ratio of the tapered angle of the first tapered surface to the tapered angle of the second tapered surface is higher as the sectional area, i.e., the inner diameter, of the parallel flow path is smaller.
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