Swash plate type compressor having a surface coating layer on the surface of swash plate
AssigneeKabushiki Kaisha Toyoda Jidoshokki Seisakusho
InventorsMasafumi Kato, Takenori Sawa, Futoshi Sakata, Yoshifumi Kato
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Abstract
A swash plate type compressor is provided with a surface coating layer on the surface of a swash plate. The surface coating layer acts to prevent the frictional resistance which leads to seizure conventionally occurring by the direct contact of the shoes and the swash plate body. The swash plate body is produced from aluminum or aluminum alloy and the surface coating layer is made of tin and at least one metal selected from the group consisting of copper, nickel, zinc, lead and indium.
Claims10
A swash plate type compressor comprising:
- a cylinder block having a cylinder bore disposed parallel to the axis of said cylinder block;
- a rotary shaft rotatably mounted within said cylinder block;
- a swash plate fixed to said rotary shaft for rotation with said rotary shaft within said cylinder block;
- a piston reciprocally fitted in said cylinder bore;
- and
- shoes which slidably intervene between said piston and said swash plate and reciprocate said piston by rotations of said swash plate;
- wherein said swash plate comprises a matrix composed of aluminum or aluminum alloy and at least a part of the surface of said swash plate is coated with a surface coating layer comprising at least 50% by weight of tin and the balance substantially comprising at least one metal selected from the group consisting of copper, nickel, zinc, lead and indium, and said part of the surface of said swash plate is in slidable contact with said shoes.
The swash plate type compressor of claim 5, wherein the copper content in the composition of said surface coating layer is from 0.1% to 50%, by weight.
Dependencies are inferred from the claim text.