Title:
EXPANDER AND REFRIGERATING APPLIANCE
Document Type and Number:
Japanese Patent JP2009186064
Kind Code:
A
Abstract:
To surely convey refrigerant oil in a casing of a low pressure atmosphere to a sliding part of an expansion mechanism.
In an expander (30), the pressure inside an expander casing (34) is set to be the same as a refrigerant reduced in pressure in the expansion mechanism (31). In the expansion mechanism (31), the refrigerant oil in an oil reservoir (37) is pumped from an oil pump (48) of an output shaft (40), and this refrigerant oil is supplied to the expansion mechanism (31) via an in-shaft oil passage (90). The expansion mechanism (31) includes seal rings (121, 122, 123, 124) for preventing leakage of a high pressure refrigerant in fluid chambers (52, 72, 82) into the in-shaft oil passage (90).
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Inventors:
KUMAKURA EIJI
OKAMOTO MASAKAZU
HOKOTANI KATSUMI
OKAMOTO MASAKAZU
HOKOTANI KATSUMI
Application Number:
JP2008025138A
Publication Date:
August 20, 2009
Filing Date:
February 05, 2008
Export Citation:
Assignee:
DAIKIN IND LTD
International Classes:
F25B11/02; F25B1/00; F25B43/02
Domestic Patent References:
| JP2005264748A | 2005-09-29 | |||
| JP2006336597A | 2006-12-14 | |||
| JP2007285677A | 2007-11-01 |
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
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