Pulley assembly of compressor and method of manufacturing the same
AssigneeHalla Climate Control Corporation
InventorsSung-Taeg Oh, Suk-Jae Chung
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Abstract
Disclosed therein are a pulley assembly for a compressor and a manufacturing method of the same, which can prevent possible damages during processing and is fit for high-temperature environment because a pulley is made of magnesium alloy. The pulley assembly includes: a cylindrical hollow pulley made of magnesium alloy; an inner ring formed integrally with the pulley by insert injection molding, the inner ring being fixed to the inner circumferential surface of the pulley and made of a different material from the pulley; and a bearing forcedly pressed and fixed to the inner circumferential surface of the inner ring.
Claims11
A pulley assembly of a compressor, which includes a cylindrical hollow pulley and a bearing disposed on the inner circumferential surface of the pulley,
- wherein the pulley is made of magnesium alloy,
- wherein a cylindrical inner ring is formed integrally with the inner circumferential surface of the pulley by insert injection molding, the inner ring being made of a different material from the pulley;
- and
- wherein the bearing is fixed to the inner circumferential surface of the inner ring,
- wherein a first coating layer having an oxide film layer formed by spark anodizing is formed on the outer surface of the pulley and a second coating layer having a resin layer formed by electrodeposition is formed on the surface of the first coating layer.
Dependencies are inferred from the claim text.