Mitsubishi Electric Corporation

Tsukasa Tanigawa

Hideki Takeda

Ryohei Kawabata

Munehiro Yamanaka

A check valve includes a container body and a valve body. The container body includes a cylindrical valve-body housing portion, an inlet portion, an outlet portion, and a valve seat. The inlet portion is formed at one end portion of the valve-body housing portion, and the outlet portion is formed at the other end portion of the valve-body hosing portion. The valve seat is protruded at an inner circumferential surface of the valve-body housing portion. The valve body is provided in the container body and movable in the axial direction thereof.

Check valve, air-conditioning apparatus, and method of manufacturing check valve

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

A heat exchanger includes plural flat tubes each having a flat cross section, and plural flat-tube U-bends each having a flat cross section and a U-shape in external appearance. Plural flat-tube columns each made up of the plural flat tubes installed in plural tiers in a set direction are arranged in a direction intersecting the set direction and in a staggered manner. Each of the plural flat-tube U-bends is placed in a pair of coupling portions of the plural flat tubes. Each of the pair of coupling portions is placed in one of a pair of the plural flat-tube columns. The plural flat-tube U-bends are twisted such that major axes of flat cross sections in both end portions of each of the plural flat-tube U-bends are oriented in the same directions as major axes of flat cross sections of the plural flat tubes connected to the both end portions.

Growing community of inventors

Tokyo, Japan

Tsukasa Tanigawa