Daikin Industries, Ltd.

Keita Kondou

Tetsuya Ukon

Makoto Iwakame

Tomoya Hirano

Takehiko Hiei

Munehiro Okamura

Satoshi Ueda

Yuki Kuwamura

An oxygen concentrating apparatus includes an oxygen supply source, an attaching member, and a photodetector. An oxygen discharger is attached to the attaching member while oxygen from the oxygen supply source is supplied to the oxygen discharger. The photodetector is disposed in the oxygen concentrating apparatus and on an extension of an oxygen supply passage of the attaching member.

Oxygen concentrating apparatus

A reciprocating pump includes a motor having a motor shaft, four cylinders, four pistons disposed in the cylinders and reciprocated by the motor shaft, a casing accommodating the motor shaft, and eight ducts. The four cylinders are disposed at positions offset 90 degrees from each other about the motor shaft. Cylinder shaft directions are perpendicular to a motor shaft direction. The eight ducts include four intake ducts and four exhaust ducts. Gas is introduced into the cylinders through the intake ducts and discharged from the cylinders through the exhaust ducts. The eight ducts are disposed in a region surrounded by the cylinders when viewed along the motor shaft direction. The eight ducts are arranged in four pairs with each pair disposed between adjacent cylinders about the motor shaft. The four pairs of ducts disposed between the adjacent cylinders extend along the motor shaft direction.

Reciprocating pump and oxygen concentrator

A reciprocating compressor includes a motor having a motor shaft, four cylinders provided in perpendicular directions relative to an axial direction of the motor shaft, and four pistons Each piston has a piston head part and a rod part formed integrally with the piston head part. Each piston head part is fitted into one of the four cylinders in a reciprocable fashion. Each rod part is rotatably mounted to an eccentric shaft that is fixed to the motor shaft.

Reciprocating compressor and oxygen concentrator

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Settsu, Japan

Keita Kondou