Air foil bearing installation structure
AssigneePyong Hwa Valeo Co., Ltd.
InventorJu Hyung Na
Life of this patent
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Abstract
The present invention relates to an airfoil bearing installation structure in which a spacer is provided on a bent portion of a foil assembly, the spacer has catching pieces having elasticity, and catching projections are formed on an inner wall surface of a slot formed in a housing so that the catching pieces are caught by the catching projections. Therefore, it is possible to prevent an axial movement and separation of the foil assembly without additionally installing a separate component for blocking an inlet of the slot.
Claims6
An airfoil bearing installation structure configured to be installed in a housing of an air compressor, the airfoil bearing installation structure comprising:
- a foil assembly including a bump foil and a top foil that overlap each other in a cylindrical shape;
- and
- a spacer mounted on a bent portion protruding from the foil assembly in a radial direction, the spacer comprising two opposite side plate portions extending in an axial direction and a connection portion connecting axially rear ends of the two opposite side plate portions,
- wherein the foil assembly and the bent portion are inserted into a bearing installation hole and a slot formed in the housing
- wherein the spacer is configured to eliminate a circumferential gap in the slot by fitting between the foil assembly and an inner surface of the slot, and
- wherein catching pieces are formed by cutting axially front end portions of the side plate portions and bending upper portions of the cut areas outward in radial directions.
Dependencies are inferred from the claim text.