Title:
冷凍装置
Document Type and Number:
Japanese Patent JP4715615
Kind Code:
B2
Abstract:
A refrigerant circuit (11) of an air conditioner (10) includes a compressor (20) and an expander (30). In the compressor ( 20), refrigerator oil is supplied from an oil reservoir (27) t o a compression mechanism (21 ). In the expander (30) , the refrigerator oil is supplied from an oil reservoir (37) t o an expansion mechanism (31). The inner pressures of the compressor casing (24) and the expander casing (34) are the high pressure and the low pressure of the refrigeration cycle, respectively. An oil adjusting valve (52) is provided in an oil pipe (42) connecting the compressor casing (24) and the expander casing (34) . The oil amount adjusting valve (52) is operated on the basis of an output signal of an oil level sensor (51) . When the oil amount adjusting valve (52) is opened, the refrigerator oil flows from the oil reservoir (27) in the compressor casing (24) toward the oil reservoir (37 ) in the expander casing (34) through the oil pipe (42).
Inventors:
Katsumi Hokoya
Tetsuya Okamoto
Masakazu Okamoto
Eiji Kumakura
Tetsuya Okamoto
Masakazu Okamoto
Eiji Kumakura
Application Number:
JP2006116694A
Publication Date:
July 06, 2011
Filing Date:
April 20, 2006
Export Citation:
Assignee:
Daikin Industries, Ltd.
International Classes:
F25B1/00; F25B11/02; F25B49/02
Domestic Patent References:
| JP2004325019A | ||||
| JP2003240366A | ||||
| JP2001141315A | ||||
| JP2004257303A | ||||
| JP200724439A | ||||
| JP2007113815A |
Attorney, Agent or Firm:
Hiroshi Maeda
Hiroshi Takeuchi
Takahisa Shimada
Yuji Takeuchi
Katsumi Imae
Atsushi Fujita
Kazunari Ninomiya
Tomoo Harada
Iseki Katsumori
Seki Kei
Yasuya Sugiura
Hiroshi Takeuchi
Takahisa Shimada
Yuji Takeuchi
Katsumi Imae
Atsushi Fujita
Kazunari Ninomiya
Tomoo Harada
Iseki Katsumori
Seki Kei
Yasuya Sugiura