Panasonic Intellectual Property Management Co., Ltd.

Yuki Yamaoka

Ko Inagaki

Masaaki Nagai

Tsuneko Imagawa

Naoki Yoshida

Jun Yoshida

Yasuhiko Isayama

Yasuaki Bando

Shunji Moriwaki

Kazuki Koishihara

Kazuhito Nakatani

Shigeo Aoyama

Kazuhiko Machida

Chihsuan Hsu

Yohei Matsunami

A vapor compression refrigeration cycle device includes a main refrigerant circuit formed by sequentially connecting a compressor, a use-side heat exchanger, an intermediate heat exchanger, a first expansion device, and a heat source-side heat exchanger to one another through a refrigerant pipe; a bypass refrigerant circuit which branches off from the refrigerant pipe located between the use-side heat exchanger and the first expansion device, and which is formed by sequentially connecting a second expansion device, the intermediate heat exchanger, and a compression midstream of the compressor; and a controller. When a pressure ratio of discharge pressure of refrigerant discharged from the compressor and suction pressure of refrigerant sucked into the compressor is equal to or smaller than a reference pressure ratio, the controller is configured to control the compressor such that the number of rotations of the compressor is increased.

Vapor compression refrigeration cycle device

Growing community of inventors

Shiga, Japan

Yuki Yamaoka