Kabushiki Kaisha Toyota Jidoshokki

Shino Okubo

Takahiro Sugioka

Manabu Sugiura

Tomohiro Murakami

Akira Onoda

Takayuki Kato

Hideki Mizutani

Hidetaka Hayashi

Naoharu Ueda

Tetsuya Mitsuoka

Atsushi Saito

Taichi Nakamizo

Hiroaki Sato

Atsushi Ichikawa

A sliding member for a compressor includes a base metal, a first layer and a second layer. The base metal is made of an aluminum-based metal. The first layer is formed on or over the base metal and made of a nickel-based plating layer containing at least one material of nitrogen (N), silicon (Si), titanium (Ti), chromium (Cr) and aluminum (Al) as an additive. The second layer is formed on the surface of the first layer and made of a diamond-like carbon layer containing the same additive as the additive contained in the first layer.

Sliding member for compressor

Lubricating films are formed on end surfaces of a swash plate, respectively. The lubricating films make slide contact with shoes, respectively. The lubricating films are composed of a copper based material containing no lead, and solid lubricant other than lead is contained the copper based material. A good slide contact characteristic may be obtained while using no lead.

Component having slide contact area of compressor

A compressor includes pistons, each of which is coupled to a swash plate through a pair of shoes. The swash plate rotates integrally with a drive shaft. The shoes convert the rotation of the swash plate to the reciprocation of the piston. A lubricating coating made of copper-based material is formed on parts of the swash plate along which the shoes slide. The copper-based material includes silicon. The shoes smoothly slide on the swash plate, which is coated by the lubricating coating that uses minimum amount of lead.

Swash plate for compressor

A swash plate type variable displacement compressor has a housing, a drive shaft, a swash plate and a piston. The housing includes a cylinder block, a front housing, and a rear housing. The drive shaft is rotatably supported by the housing. The swash plate is connected to the drive shaft, and is integrally rotatable with the drive shaft and tiltable relative to the drive shaft. The piston engages with the swash plate through a pair of shoes. Rotation of the drive shaft is converted to reciprocation of the piston through the swash plate and the shoes, and the displacement of the compressor is adjusted by varying the inclination angle of the swash plate with respect to the axis of the drive shaft. The swash plate includes a base member made of copper series and a sliding layer coating a sliding surface of the base member with respect to the shoes.

Swash plate in swash plate type compressor

A shoe for use in a swash plate type compressor, interposed between a swash plate and a piston, has a base member and metal plating layer. The base member is made of aluminum alloy. The metal plating layer coats at least a part of surface of the base member. The thickness of the metal plating layer ranges from 20 &mgr;m to 150 &mgr;m.

Swash plate type compressor and shoe for the same

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Kariya, Japan

Shino Okubo