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Title:
SCROLL EXPANSION MECHANISM
Document Type and Number:
WIPO Patent Application WO/2013/084618
Kind Code:
A1
Abstract:
Provided is a variable-capacity scroll expansion mechanism, wherein the required back pressure can be reduced to improve efficiency. Expansion chambers (40a, 40b) are provided with respective sub intake ports (31a, 31b). The sub intake ports (31a, 31b) are provided with respective corresponding sub port valves. When the intake volume is to be increased, an ECU (8) opens the sub port valve of the expansion chamber having a lower intake volume to increase the intake volume, and when the intake volume is to be reduced, the ECU (8) closes the sub port valve of the expansion chamber having a higher intake volume to reduce the intake volume.

Inventors:
TAMARU KOJIRO (JP)
IGUCHI MASAO (JP)
MORI HIDEFUMI (JP)
ENOKIJIMA FUMINOBU (JP)
TAKEI HIROYUKI (JP)
Application Number:
JP2012/077754
Publication Date:
June 13, 2013
Filing Date:
October 26, 2012
Export Citation:
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Assignee:
KABUSHIKI KAISHA TOYOTA JIDOSHOKKI (2-1 Toyoda-cho, Kariya-shi Aichi, 71, 〒4488671, JP)
International Classes:
F01C20/18; F01C1/02; F01C21/18
Domestic Patent References:
WO2008072575A1
Foreign References:
JP2005030386A
JP2008106668A
Attorney, Agent or Firm:
SOGA, Michiharu et al. (S. Soga & Co, 8th Floor Kokusai Building, 1-1, Marunouchi 3-chome, Chiyoda-k, Tokyo 05, 〒1000005, JP)
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Claims:



 
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