发明授权
- 专利标题: Non-Azeotropic refrigerant mixture and refrigeration cycle apparatus
- 专利标题(中): 非共沸混合制冷剂和制冷循环装置
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申请号: US12997117申请日: 2009-06-12
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公开(公告)号: US08443624B2公开(公告)日: 2013-05-21
- 发明人: Tetsuya Yamashita , Akihiro Nishida , Hirokazu Taniguchi , Takashi Okazaki , Yoshihiro Sumida , Masato Yosomiya , Kazuhiko Shiraishi
- 申请人: Tetsuya Yamashita , Akihiro Nishida , Hirokazu Taniguchi , Takashi Okazaki , Yoshihiro Sumida , Masato Yosomiya , Kazuhiko Shiraishi
- 申请人地址: JP Chiyoda-Ku, Tokyo
- 专利权人: Mitsubishi Electric Corporation
- 当前专利权人: Mitsubishi Electric Corporation
- 当前专利权人地址: JP Chiyoda-Ku, Tokyo
- 代理机构: Buchanan Ingersoll & Rooney PC
- 优先权: JP2008-156805 20080616
- 国际申请: PCT/JP2009/060774 WO 20090612
- 国际公布: WO2009/154149 WO 20091223
- 主分类号: F25B1/00
- IPC分类号: F25B1/00
摘要:
Disclosed is a non-azeotropic refrigerant mixture containing tetrafluoropropane as a high-boiling refrigerant and a refrigeration cycle apparatus in which a non-azeotropic refrigerant mixture containing tetrafluoropropane as a high-boiling refrigerant circulates through a refrigeration cycle so as to avoid occurrence of negative pressure in a low-pressure circuit.The non-azeotropic refrigerant mixture is characterized in that a mixing ratio of a high-boiling refrigerant and a low-boiling refrigerant is determined so that a saturated vapor line where pressure is 0.00 MPa is not higher than −45° C. in a low-pressure circuit formed between the decompressor to the compressor.