Title:
COMPRESSOR, REFRIGERATION CYCLE DEVICE, AND HEAT PUMP HOT-WATER SUPPLY DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/083901
Kind Code:
A1
Abstract:
The purpose of the present invention is to use a simple configuration and reduce the amount of refrigerator oil that flows out from a first discharge path in a compressor having a first intake path, the first discharge path, a second intake path, and a second discharge path. This compressor comprises: the first intake path that guides low-pressure refrigerant to a compression element without releasing same to an internal space of a sealed container; the first discharge path that discharges a high-pressure refrigerant compressed by the compression element, to outside the sealed container without releasing same to the internal space of the sealed container; the second intake path that guides the high-pressure refrigerant that has passed through an external heat exchanger to the internal space of the sealed container; the second discharge path that discharges the high-pressure refrigerant in the internal space of the sealed container, to outside the sealed container; and an oil return flow path that guides the refrigerator oil from the first discharge path either to the internal space of the sealed container or into the second intake path. The pressure inside the internal space of the sealed container and inside the second intake path is lower than the pressure inside the first discharge path, as a result of pressure loss in the external heat exchanger, and the refrigerator oil travels inside the oil return flow path as a result of this pressure difference.
Inventors:
NOMOTO SO (JP)
HATANAKA KENSAKU (JP)
TAKAYAMA KEISUKE (JP)
SAKAI DAISUKE (JP)
HATANAKA KENSAKU (JP)
TAKAYAMA KEISUKE (JP)
SAKAI DAISUKE (JP)
Application Number:
PCT/JP2013/073336
Publication Date:
June 05, 2014
Filing Date:
August 30, 2013
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B43/02; F25B1/00
Foreign References:
| JP2006132427A | 2006-05-25 | |||
| JP2009109102A | 2009-05-21 | |||
| JP2003013858A | 2003-01-15 | |||
| JPH10148422A | 1998-06-02 | |||
| JP2006322701A | 2006-11-30 | |||
| JPH03114585U | 1991-11-25 | |||
| JPH0517459U | 1993-03-05 | |||
| JPH0462359A | 1992-02-27 | |||
| JPH11173707A | 1999-07-02 | |||
| JPH0320707Y2 | 1991-05-02 | |||
| JPH06323697A | 1994-11-25 | |||
| JP2006132427A | 2006-05-25 |
Other References:
See also references of EP 2930449A4
Attorney, Agent or Firm:
TAKADA, Mamoru et al. (JP)
Takada 守 (JP)
Takada 守 (JP)
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