Title:
HEAT PUMP CYCLE
Document Type and Number:
Japanese Patent JP2019105409
Kind Code:
A
Abstract:
To provide a heat pump cycle that can sufficiently recover and use exhaust heat of a compressor.SOLUTION: An exhaust heat recovery part 41 is provided for recovering exhaust heat of a compressor 11 of a heat pump cycle 10 by the refrigerant piping wound around the outer periphery of the compressor 11. Further, in a heating mode of performing heating while using a high-temperature and high-pressure refrigerant discharged from the compressor 11 as a heat source, a low-pressure refrigerant, which is reduced in pressure by an expansion valve 15 for heat absorption and becomes a gas-liquid two-phase state, is caused to flow into the exhaust heat recovery part 41, and the refrigerant flowing out from the exhaust heat recovery part 41 is sucked into the compressor 11. With this, the heat transfer coefficient in the exhaust heat recovery part 41 is improved, a temperature difference between the refrigerant and the compressor 11 is increased, and exhaust heat of the compressor 11 is sufficiently recovered and used as a heat source for heating.SELECTED DRAWING: Figure 1
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Inventors:
OKAMURA TORU
KATO YOSHITAKE
FUSE TAKUYA
KATO YOSHITAKE
FUSE TAKUYA
Application Number:
JP2017238513A
Publication Date:
June 27, 2019
Filing Date:
December 13, 2017
Export Citation:
Assignee:
DENSO CORP
International Classes:
F25B27/02; F25B1/00; F25B47/02
Domestic Patent References:
| JPS53165363U | 1978-12-25 | |||
| JP2016142417A | 2016-08-08 | |||
| JPH01118080A | 1989-05-10 | |||
| JPH0452469A | 1992-02-20 | |||
| JPH1019375A | 1998-01-23 | |||
| JPS5063641U | 1975-06-10 |
Foreign References:
| US20170211861A1 | 2017-07-27 | |||
| US20060123821A1 | 2006-06-15 |
Attorney, Agent or Firm:
Patent Business Corporation Kaisei Patent Office