Matsushita Electric Industrial Co., Ltd.

Panasonic Corporation

Masato Mekata

Masatoshi Takahashi

Kazuo Nakatani

Noriho Okaza

Daisuke Kawazoe

Jun Akiyama

Narito Yamaguchi

Masaharu Ebihara

Shigeo Aoyama

Masaru Yonezawa

Hideaki Nakagawa

Hiroshi Arashima

Masahiro Bamba

Hiroyuki Daimon

Toshihiro Horiuchi

In a refrigeration cycle apparatus having an expansion mechanism, a method to swiftly generate a pressure difference upstream and downstream of the expansion mechanism of, thereby enhancing the starting performance of the refrigeration cycle apparatus The apparatus has a compression mechanism, a utilizing-side heat exchange, an expansion mechanism for recovering power, and a heat source-side heat exchanger. The revolution number of the heat source fluid transfer means is made smaller than a target revolution number or the heat source fluid transfer means is stopped during a predetermined time after the compression mechanism is started. When the compression mechanism is started, the pressure difference can be generated upstream and downstream of the expansion mechanism for a short time, the operation of the expansion mechanism does not become unstable, vibration and noise can be prevented, and the refrigeration cycle apparatus can swiftly be started.

Start-up control method for refrigeration cycle apparatus and refrigeration cycle control apparatus using the same

Growing community of inventors

Shiga, Japan

Masato Mekata