Title:
STEAM INJECTOR AND HEAT PUMP DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/181804
Kind Code:
A1
Abstract:
A steam injector provided with: an introduction part which introduces a liquid flow of a refrigerant and a steam flow of the refrigerant; a mixing part which has a shape with an interior cross-sectional area decreasing in the direction of movement of the liquid flow, and forms a refrigerant flow by mixing the jet-like liquid flow and the steam flow therein; a throat part which is formed on the output side of the mixing part; and a diffuser part which has a shape with an interior cross-sectional area increasing from the throat part in the direction of the movement of the refrigerant flow, and discharges the refrigerant flow with an increased pressure from a discharge section, wherein the interior cross-sectional area of the throat part is a cross-sectional area smaller than a critical cross-sectional area at which the discharge pressure of the refrigerant flow discharged from the discharge section of the diffuser part nonlinearly increases when the interior cross-sectional area of the throat part is reduced.
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Inventors:
ABE YUTAKA (JP)
TAKEUCHI KOICHIRO (JP)
SUZUKI YUTAKA (JP)
TAKEUCHI KOICHIRO (JP)
SUZUKI YUTAKA (JP)
Application Number:
PCT/JP2014/062271
Publication Date:
November 13, 2014
Filing Date:
May 07, 2014
Export Citation:
Assignee:
UNIV TSUKUBA (JP)
WELCON INC (JP)
WELCON INC (JP)
International Classes:
F04F5/04; F25B1/00; F25B43/00
Foreign References:
| JPH01196000A | 1989-08-07 | |||
| JPS59123700U | 1984-08-20 | |||
| JPH04347400A | 1992-12-02 |
Attorney, Agent or Firm:
SAKAI, HIROAKI (JP)
Hiroaki Sakai (JP)
Hiroaki Sakai (JP)
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