To provide an expander integrated compressor so as to protect a heat exchanger against a differential pressure, improve the controllability and save the space in a power recovery refrigeration cycle using the expander.
In an upper side end plate 51 of the rotary expander 3, provided are a passage 51b through which low pressure fluid after the expansion is led into a discharge pipe 54, and a communication passage 8 which is branched from the passage 51b, and is led into an inside space 41a of an airtight container 41 in which high pressure fluid after the compression of an expansion portion outside exists. A switching means 9 to open and close the communication passage 8 is provided inside the airtight container 41a of the upper side end plate 51 being an outlet of the communication passage 8 for making the communication passage 8 communicate and equalizing the pressure by opening the switching means 9.
MATSUI KEIZO
| JP2004190559A | 2004-07-08 | |||
| JP2004197640A | 2004-07-15 | |||
| JP2000297770A | 2000-10-24 | |||
| JP2001116371A | 2001-04-27 | |||
| JP2005240561A | 2005-09-08 | |||
| JP2004251528A | 2004-09-09 |
Hiroki Naito
Daisuke Nagano