REFRIGERATION CYCLE FOR VEHICULAR AIR-CONDITIONING DEVICE, AND VEHICLE EQUIPPED THEREWITH

WIPO Patent Application WO/2017/086343

A1

The present disclosure relates to a vehicular air-conditioning refrigeration cycle including an internal heat exchanger, and a vehicle equipped with said refrigeration cycle, and the purpose of the present disclosure is to provide: a vehicular air-conditioning refrigeration cycle that includes an internal heat exchanger and in which it is possible to suppress a reduction in the coefficient of performance without adding components; and a vehicle equipped with said refrigeration cycle. This refrigeration cycle (1) for a vehicular air-conditioning device comprises: a refrigerant circuit (100) including a compressor (2), a condenser (3), an electronically controlled expansion valve (4), and an evaporator (5); an internal heat exchanger (10); a pressure sensor (31) that detects the pressure of a refrigerant between the condenser and the internal heat exchanger; a first temperature sensor (32) that detects the temperature of the evaporator, or a second temperature sensor (33) that has a measurement point between the evaporator and the internal heat exchanger; and a valve opening control device (40). The valve opening control device employs, as the degree of superheat, a calculated degree-of-superheat value calculated by using, as parameters, a detection value of the pressure sensor and a detection value of the first temperature sensor or a detection value of the second temperature sensor.

TSUJI TERUAKI (JP)
AKAHOSHI MITSUHIKO (JP)
YOSHIDA MAKOTO (JP)

PCT/JP2016/083960

May 26, 2017

November 16, 2016

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VALEO JAPAN CO LTD (JP)

B60H1/32; F25B1/00

JP2004061061A	2004-02-26
JP2001001754A	2001-01-09
JPH1163624A	1999-03-05
JP2014119200A	2014-06-30

IMASHITA, Katsuhiro et al. (JP)

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