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Patent Searching and Data


Title:
EJECTOR
Document Type and Number:
WIPO Patent Application WO/2019/146322
Kind Code:
A1
Abstract:
This ejector is provided with: a nozzle (41) which reduces the pressure of a fluid and sprays the fluid from a fluid spray hole (41e); and a body (42). A fluid suctioning hole (42a), a mixing part (42b), and a pressure raising part (42d) are formed in the body. A suctioning passage (42c), in which the suctioned fluid flows, is formed between an outer peripheral surface of the nozzle and an inner peripheral surface of the body. The mixing part is disposed on the same axis as the center axis (CL) of the nozzle. A narrow tip portion (41b) and a neck portion (41c) are formed in the nozzle passage of the nozzle. The distance of the nozzle passage, in the center axis direction of a fluid passage, from the neck portion to the fluid spray hole is at most two times the opening diameter (φD) of the fluid spray hole. A point at which a nozzle outer peripheral straight line (L1) crosses the center axis (CL) is defined as a nozzle outer peripheral cross point (P1), wherein the nozzle outer peripheral straight line (L1) passes through a point (Pmx1) drawn by a maximum-diameter portion and a point (Pmn1) drawn by a minimum-diameter portion of a suctioning passage-forming region of the nozzle outer peripheral surface in a reference cross-section. The nozzle outer peripheral cross point is located in the mixing part.

Inventors:
TAKATSU MASAHIRO (JP)
Application Number:
PCT/JP2018/046853
Publication Date:
August 01, 2019
Filing Date:
December 19, 2018
Export Citation:
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Assignee:
DENSO CORP (JP)
International Classes:
F04F5/46; F04F5/16; F25B1/00
Foreign References:
JPH062964A1994-01-11
CN105065341A2015-11-18
CN106640777A2017-05-10
CN206636848U2017-11-14
CN103644149A2014-03-19
CN107620743A2018-01-23
JPS5827600U1983-02-22
CN205446214U2016-08-10
JP2004270460A2004-09-30
US20160187037A12016-06-30
Other References:
See also references of EP 3744983A4
Attorney, Agent or Firm:
JIN Shunji (JP)
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