Sanyo Electric Co., Ltd.

Yonezo Ikumi

Toshitake Nagai

Koji Sato

Norio Sawada

Takahide Kakinuma

Kazuo Takemasa

Takayuki Shimizu

Jiro Yuzawa

Masato Watanabe

Fukuji Yoshida

Katsuhiko Inoue

There is disclosed an apparatus for easily recovering a refrigerant from a refrigerant circuit of a refrigeration apparatus at a low cost. A refrigerant recovery apparatus A is provided with a pipeline for connection to the refrigerant circuit, a valve with a clamping/piercing function disposed on the tip end of this pipeline , and a refrigerant recovery main body A containing a solid adsorbent which can selectively adsorb the refrigerant, and the clamping/piercing function valve is attached to the refrigerant circuit to make a small hole in the refrigerant circuit so that the refrigerant is adsorbed/recovered to the solid adsorbent

REFRIGERANT COLLECTING DEVICE, REFRIGERANT COLLECTING METHOD, REFRIGERATOR HAVING REFRIGERANT COLLECTING DEVICE, CONTROL METHOD FOR REFRIGERANT IN REFRIGERANT CIRCUIT OR REGENERATION DEVICE AND REGENERATION METHOD FOR REFRIGERANT COLLECTING

An object of the invention is to settle an unbalanced refrigerant flow in a heat exchanger thereby to improve a heat exchanging efficiency. In a heat exchanger having a refrigerant conduit provided through a plurality of fins, the refrigerant conduit is divided into a plurality of sets, each consisting of a plurality of parallel conduits, and parallel conduits of a set are put in communication with each other at ends thereof and in communication, through a single passage, with ends of parallel conduits of another set.

Heat exchanger and cooling apparatus mounted with the same

A refrigeration cycle including a compressor, an indoor heat exchanger, an expansion, an outdoor heat exchanger and a six-way change-over valve having a refrigerant passage through which refrigerant flows in a refrigerant circuit comprising the compressor, the indoor heat exchanger, the expansion and the outdoor heat exchanger, wherein the six-way change-over valve serves to selectively switch the refrigerant passage so that the refrigerant passing in the indoor and outdoor heat exchangers flows in the same direction at any time when the refrigerant cycle is switched to a cooling operation cycle and to a heating operation cycle.

Refrigeration cycle using six-way change-over valve

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Gunma, Japan

Yonezo Ikumi