Title:
POSITIVE DISPLACEMENT EXPANDER AND REFRIGERATION CYCLE DEVICE USING THE POSITIVE DISPLACEMENT EXPANDER
Document Type and Number:
WIPO Patent Application WO/2011/089638
Kind Code:
A1
Abstract:
A positive displacement expander provided with an expansion mechanism for generating power using fluid energy occurring when a high-pressure fluid supplied to expansion chambers (81a, 82a), which are divided by an orbiting scroll or a rocking piston, is reduced in pressure by expansion. The positive displacement expander is also provided with a communication path (71) for connecting each of the expansion chambers (81a, 82a) and the discharge side of the expander. An opening and closing device (72) is provided in the communication path (71). When the supply of the high-pressure fluid is stopped, the opening and closing device (72) stops the orbiting scroll or the rocking piston at a predetermined position by opening during a time period until high pressure and low pressure between each of the expansion chambers (81a, 82a) and the discharge side of the expander are equalized. As a result, the expander (8) can have sufficient drive power at the time of restarting.
Inventors:
TAKAYAMA, Keisuke (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
高山啓輔 (〒10 東京都千代田区丸の内二丁目７番３号三菱電機株式会社内 Tokyo, 〒1008310, JP)
SHIMAZU, Yusuke (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
島津裕輔 (〒10 東京都千代田区丸の内二丁目７番３号三菱電機株式会社内 Tokyo, 〒1008310, JP)
KAKUDA, Masayuki (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
高山啓輔 (〒10 東京都千代田区丸の内二丁目７番３号三菱電機株式会社内 Tokyo, 〒1008310, JP)
SHIMAZU, Yusuke (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
島津裕輔 (〒10 東京都千代田区丸の内二丁目７番３号三菱電機株式会社内 Tokyo, 〒1008310, JP)
KAKUDA, Masayuki (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
Application Number:
JP2010/000257
Publication Date:
July 28, 2011
Filing Date:
January 19, 2010
Export Citation:
Assignee:
Mitsubishi Electric Corporation (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
三菱電機株式会社 (〒10 東京都千代田区丸の内二丁目７番３号 Tokyo, 〒1008310, JP)
TAKAYAMA, Keisuke (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
高山啓輔 (〒10 東京都千代田区丸の内二丁目７番３号三菱電機株式会社内 Tokyo, 〒1008310, JP)
SHIMAZU, Yusuke (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
島津裕輔 (〒10 東京都千代田区丸の内二丁目７番３号三菱電機株式会社内 Tokyo, 〒1008310, JP)
三菱電機株式会社 (〒10 東京都千代田区丸の内二丁目７番３号 Tokyo, 〒1008310, JP)
TAKAYAMA, Keisuke (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
高山啓輔 (〒10 東京都千代田区丸の内二丁目７番３号三菱電機株式会社内 Tokyo, 〒1008310, JP)
SHIMAZU, Yusuke (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
島津裕輔 (〒10 東京都千代田区丸の内二丁目７番３号三菱電機株式会社内 Tokyo, 〒1008310, JP)
International Classes:
F01C13/04; F01C1/02; F01C20/06; F01C20/26; F25B1/00; F25B11/02
Attorney, Agent or Firm:
KOBAYASHI, Hisao et al. (KISA PATENT & TRADEMARK FIRM, The 6th Central Bldg. 19-10, Toranomon 1-chome, Minato-k, Tokyo 01, 〒1050001, JP)
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Claims: