The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 26, 2020

Filed:

Feb. 04, 2016
Applicant:

Denso Corporation, Kariya, Aichi-pref., JP;

Inventor:

Hiroaki Kawano, Kariya, JP;

Assignee:

DENSO CORPORATION, Kariya, Aichi-pref., JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60H 1/00 (2006.01); F25B 41/04 (2006.01); F25B 41/00 (2006.01); F25B 49/02 (2006.01); B60H 1/22 (2006.01); B60H 1/32 (2006.01); F25B 6/04 (2006.01); F25B 5/04 (2006.01);
U.S. Cl.
CPC ...
B60H 1/00899 (2013.01); B60H 1/00885 (2013.01); B60H 1/00907 (2013.01); B60H 1/00921 (2013.01); B60H 1/22 (2013.01); B60H 1/3213 (2013.01); F25B 41/003 (2013.01); F25B 41/04 (2013.01); F25B 49/02 (2013.01); B60H 2001/3267 (2013.01); F25B 5/04 (2013.01); F25B 6/04 (2013.01); F25B 2341/0662 (2013.01); F25B 2400/0403 (2013.01); F25B 2400/0409 (2013.01); F25B 2400/0411 (2013.01); F25B 2400/13 (2013.01); F25B 2400/23 (2013.01); F25B 2600/2501 (2013.01); F25B 2700/04 (2013.01); F25B 2700/195 (2013.01); F25B 2700/1931 (2013.01); F25B 2700/2104 (2013.01); F25B 2700/2106 (2013.01); F25B 2700/21161 (2013.01); F25B 2700/21163 (2013.01); F25B 2700/21173 (2013.01); F25B 2700/21175 (2013.01);
Abstract

A heat pump cycle includes a compressor, a first interior heat exchanger, a separator that separates a refrigerant discharged from the compressor into a gas-phase refrigerant which does not include a lubricant and a remaining refrigerant, an exterior heat exchanger that performs heat exchange between the remaining refrigerant flowing out of the separator and an outside air, a second interior heat exchanger, a control valve, an accumulator, and a first bypass passage that bypasses the second interior heat exchanger and connects to an inlet side of the accumulator. The heat pump cycle heats an air flow in the first interior heat exchanger and controls the control valve to reduce the pressure of the refrigerant, in a state where the refrigerant circulates in a refrigerant circuit including the first bypass passage while accumulating the gas-phase refrigerant flowing out of the separator in the second interior heat exchanger.


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