Journal-Foil Air Bearing
First Claim
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1. A journal foil air bearing comprising:
- a bearing housing provided with a hole in which a rotor is arranged;
at least two bump foils disposed to be distanced from each other along an inner periphery of the hole in the bearing housing; and
a top foil provided by one foil along a circumferential direction and disposed along the top of the bump foils;
whereby the top foil deforms outward on spaces where the bump foils are distanced from each other and forms lobe shapes thereon at high speed rotation of the rotor.
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Accused Products
Abstract
A journal foil air bearing 5000 according to the present invention is provided with one top foil 300 along an inner periphery of a hole 18 of a bearing housing 10. Bump foils 20c and 20d are installed at the inner periphery of the hole 18 of the bearing housing 10 where they are distanced from each other. Both ends of the top foil 300 form bent portions 308a and 308b and the bent portions 308a and 308b are mounted in a slot 414 of a slot body 40 mounted in a slot 140 provided in the inner periphery of the hole 18 in the bearing housing 10 and the top foil 300 is elastically movable therein.
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Citations
12 Claims
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1. A journal foil air bearing comprising:
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a bearing housing provided with a hole in which a rotor is arranged; at least two bump foils disposed to be distanced from each other along an inner periphery of the hole in the bearing housing; and a top foil provided by one foil along a circumferential direction and disposed along the top of the bump foils; whereby the top foil deforms outward on spaces where the bump foils are distanced from each other and forms lobe shapes thereon at high speed rotation of the rotor. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A journal foil air bearing comprising:
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a bearing housing provided with a hole in which a rotor is arranged; a bump foil disposed along an inner periphery of the hole in the bearing housing; and a top foil provided by one foil along a circumferential direction and disposed along the top of the bump foil; wherein the top foil has bent portions at both end and the bent portions are mounted on a slot provided in the inner periphery of the hole in the bearing housing to be elastically movable therein in circumferential and radial directions. - View Dependent Claims (9, 10, 11, 12)
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Specification