EJECTOR

WIPO Patent Application WO/2014/185069

A1

A swirling space (30a) that creates an air-liquid mixture state by swirling a refrigerant includes an upstream swirling space (301) that swirls a refrigerant flowing in from the exterior and a downstream swirling space (302) that swirls the refrigerant from the upstream swirling space (301) and guides the same to a nozzle channel (13a). Furthermore, the cross sectional shape of an outlet (38e) of the upstream swirling space (301) is formed to be annular along the outer circumference of the upstream swirling space (301). Thus, obstruction of the flow of refrigerant retained and circulating in the downstream swirling space (302) by the refrigerant flowing from the upstream swirling space (301) to the downstream swirling space (302) can be suppressed, and reduction in the proportion of the gas-phase refrigerant in the refrigerant, in an air-liquid mixture state, flowing to the nozzle channel (13a) can be suppressed. As a result, boiling of the refrigerant in the nozzle channel (13a) can be facilitated, and a decrease in nozzle efficiency of the ejector, which causes a decrease in the pressure of a fluid in an air-liquid mixture state due to swirling, can be suppressed.

JP2808058

POROUS TYPE EJECTOR

YAMADA ETSUHISA (JP)
TAKANO YOSHIAKI (JP)
NISHIJIMA HARUYUKI (JP)

PCT/JP2014/002545

November 20, 2014

May 14, 2014

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DENSO CORP (JP)

F04F5/04; F25B1/00

WO2013002872A2

2013-01-03

JP2010210111A	2010-09-24
US6138456A	2000-10-31
US4378681A	1983-04-05
JPS6176800A	1986-04-19
JPH032670B2	1991-01-16

KIN, Junhi (JP)
Gold Junki (JP)

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