Daikin Industries, Ltd.

Takashi Hirouchi

Hiroyuki Yamaji

Mikio Kajiwara

Mitsuhiko Kishikawa

Mie Arai

Masanori Masuda

Kazuhiro Furusho

Takayuki Takahashi

Toshihiro Susa

Eiji Kumakura

Hiromichi Ueno

Yasuhiro Murakami

Katsumi Kawahara

Atsushi Suhara

Masahide Higuchi

Tetsuo Nakata

Tsuyoshi Fukunaga

Katsumi Katou

Yasuto Hiraoka

Kenichi Saitou

Takeyoshi Ookawa

Takahiro Kishimoto

Kishikawa Mitsuhiko

The compressor includes a first constituent element and a first slider. The first constituent element is capable of being laser welded. The first slider is composed of cast iron capable of being laser welded and having a carbon content of from 2.0 wt % or more to 2.7 wt % or less. This first slider is joined to the first constituent element by laser welding without using a filler.

Compressor and manufacturing method thereof

A compressor slider has a carbon content of 2.0 wt % to 2.7 wt %, a silicon content of 1.0 wt % to 3.0 wt %, a balance of iron that includes unavoidable impurities, graphite that is smaller than the flake graphite of flake graphite cast iron, and a hardness that is greater than HRB 90 but less than HRB 100 in at least a portion of the slider.

Compressor slider, slider preform, scroll part, and compressor

In a positioning apparatus (), a fixed scroll () is positioned with respect to an assembly body () in which a compressor motor () has been incorporated. In positioning the fixed scroll (), electric power is supplied to the compressor motor () from an inverter () to rotate a crank shaft () by the compressor motor (), thereby shifting a movable scroll (). In the positioning apparatus (), the shift of the movable scroll () leads to calculation of an appropriate position of the fixed scroll (). A striking unit () applies impact force to the fixed scroll () to stir the fixed scroll () to the appropriate position.

Fixed scroll positioning apparatus and fixed scroll positioning method

In a positioning apparatus, a fixed scroll engaged with a movable scroll is pressed against a housing member, and then, is stirred to an appropriate position by applying impact force to the fixed scroll in this state. Thus, the stirring of the fixed scroll terminates in the state that the fixed scroll is pressed against the housing member.

A front head of a cylinder and a mounting plate are tightly fixed to each other. The mounting plate is welded to a casing. The mounting plate is made of steel containing 2.0% or less of carbon therein. Furthermore, a stator core of a compressor motor is welded to the casing. A hermetic sealed compressor is configured in a high-pressure domed type. A supercritical fluid is used as an operating fluid.

Hermetic sealed compressor

Rotary compressor

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Sakai, Japan

Takashi Hirouchi