Title:
EJECTOR, EJECTOR PRODUCTION METHOD, AND METHOD FOR SETTING OUTLET FLOW PATH OF DIFFUSER
Document Type and Number:
WIPO Patent Application WO/2017/169219
Kind Code:
A1
Abstract:
An ejector 10 is provided with a nozzle 20, a suction chamber 30, and a diffuser 40. An outlet flow path 50 comprises: a reduction flow path 51 having a first tapered surface 54 that becomes thinner toward the downstream side; a parallel flow path 52 having a fixed cross-sectional area; and an expansion flow path 53 having a second tapered surface 55 that becomes thicker toward the downstream side. The diffuser 40 additionally comprises an attachment 42 for changing the dimensions of the outlet flow path 50. The attachment 42 changes the dimensions of the outlet flow path 50 such that the ratio of the taper angle α of the first tapered surface 54 with respect to the taper angle β of the second tapered surface 55 becomes larger as an inner diameter D, in other words, the cross-sectional area of the parallel flow path 52 becomes smaller.
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Inventors:
KAWASHIMA FUMIHIRO (JP)
ITOGA TOMONORI (JP)
ITOGA TOMONORI (JP)
Application Number:
PCT/JP2017/005469
Publication Date:
October 05, 2017
Filing Date:
February 15, 2017
Export Citation:
Assignee:
TLV CO LTD (JP)
International Classes:
F04F5/44
Foreign References:
| US6877960B1 | 2005-04-12 | |||
| JPS5779152U | 1982-05-15 | |||
| JP135753C |
Other References:
See also references of EP 3438466A4
Attorney, Agent or Firm:
TERAZONO Kenichi et al. (JP)
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