Daikin Industries, Ltd.

Kousuke Araki

Yoshitomo Tsuka

Kenji Nagahara

Tetsuya Nagamichi

A tube assembly includes inner and outer tubes, and a brazing material. The inner tube has an outer peripheral surface first portion and an outer peripheral surface second portion. The outer tube has an inner peripheral surface first portion and an inner peripheral surface second portion. The inner and outer tubes form a refrigerant passage of a compressor. The inner peripheral surface first portion is located adjacent an end of the outer tube. The inner peripheral surface second portion is located spaced from the end as compared with the inner peripheral surface first portion. The outer peripheral surface first portion is press-fitted into the inner peripheral surface first portion. The brazing material is disposed in a brazing gap between the outer peripheral surface second portion and the inner peripheral surface second portion. The brazing material fixes the outer peripheral surface second portion and the inner peripheral surface second portion.

Tube assembly, compressor, refrigeration apparatus, and method of manufacturing tube assembly

A scroll compressor includes a casing, a scroll compression mechanism, a motor, a crankshaft, a bearing, a frame fixed to the casing; and an oil separation member fixed to the frame. The motor includes a stator and a rotor rotatable in a rotational direction. The bearing rotatably supports the crankshaft. The oil separation member suppresses mixing of a refrigerant and a lubricating oil. The frame supports the bearing and has first and second fixed legs fixed to the casing. The oil separation member has a first horizontal and inclined surfaces. The first inclined surface has a first inclined surface upstream portion and a first inclined surface downstream portion. The first inclined surface downstream portion is disposed higher than the first inclined surface upstream portion. The first horizontal surface, the first inclined surface, and the first fixed leg are disposed in order from upstream to downstream in the rotational direction.

Growing community of inventors

Osaka, Japan

Kousuke Araki