Title:
EJECTOR
Document Type and Number:
WIPO Patent Application WO/2017/179321
Kind Code:
A1
Abstract:
An ejector wherein a passage-forming member (35) formed in a conical shape is arranged inside a body (30) in which an inflow space (30a) for allowing the inflow of a high-pressure refrigerant is formed, thereby forming a nozzle passage (13a) having an annular cross section and functioning as a nozzle, and a diffuser passage (13c) having an annular cross section and functioning as a pressure-boosting part. Furthermore, a shaft (38) extending toward the inflow-space side and slidably supported in the body is coupled to the passage-forming member. The ejector is additionally provided with a pressure-receiving part (38a) which, when the load received by the passage-forming member due to the refrigerant pressure inside the inflow space is defined as a first load (Pw1), receives a second load (Pw2) in a direction cancelling out the first load on the shaft. Thus, it is possible to prevent fluctuations in the first load from influencing displacement of the passage-forming member. Thus, regardless of load fluctuations in a refrigeration cycle device to which the ejector is applied, the passage cross-sectional area of an internally formed refrigerant passage can be changed appropriately.
Inventors:
HOTTA TERUYUKI (JP)
YAMADA ETSUHISA (JP)
KAWAMOTO YOICHIRO (JP)
YAMADA ETSUHISA (JP)
KAWAMOTO YOICHIRO (JP)
Application Number:
PCT/JP2017/007583
Publication Date:
October 19, 2017
Filing Date:
February 28, 2017
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
F04F5/04; F04F5/46; F04F5/48
Foreign References:
| JP2013177879A | 2013-09-09 | |||
| US20130277448A1 | 2013-10-24 |
Attorney, Agent or Firm:
JIN Shunji (JP)
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