Mitsubishi Denki Kabushiki Kaisha

Mitsubishi Electric Corporation

Munehiro Yamanaka

Tomohiko Kasai

Daisuke Shimamoto

Hidekazu Tani

Masahiro Tsuda

Makoto Saitou

Shuji Oura

Tsukasa Tanigawa

A check valve unitincludes: a container bodyincluding a valve body housing portion, a valve seat, and a protruding portion, the valve body housing portionhaving a cylindrical shape, the valve seatbeing formed at one end portion of the valve body housing portionand protruding from an inner peripheral surface of the valve body housing portion, the protruding portionbeing formed at the other end portion of the valve body housing portionand protruding from the inner peripheral surface of the valve body housing portion; and a valve bodyincluding a valve portionand a guide portionand disposed in the container body, the valve portioncoming into contact with the valve seatat a time of preventing backflow of refrigerant, the guide portionincluding a plurality of blades.

Check valve unit and air-conditioning apparatus, and method for manufacturing check valve unit

An air conditioning apparatus has plural indoor units having: plural heat exchangers; and flow controllers respectively corresponding to the heat exchangers. In each of the indoor units, one heat exchanger is used as a condenser, and another heat exchanger is used as an evaporator, thereby causing the indoor unit to perform a temperature and humidity controlling operation. An indoor unit(s) which is not set to perform the temperature and humidity controlling operation may be caused to perform a heating operation or a cooling operation. Capacity controls on the condensers and the evaporators are performed by corresponding flow controllers. Gas refrigerants ejected from plural heat exchangers serving as evaporators are joined together, and then distributed to plural heat exchangers serving as condensers.

Air conditioning apparatus

Air conditioner

Growing community of inventors

Tokyo, Japan

Munehiro Yamanaka