Radial retainer for single lobe turbine blade attachment and method for radially retaining a turbine blade in a turbine blade slot
First Claim
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1. A blade retention system for a rotating machine comprising:
- a hub having a plurality of shaped, generally axially extending, radially open slots at circumferentially spaced positions about the hub;
a blade having complimentary shaped base portion axially received in a said slot and extending radially outwardly therefrom; and
a radial retainer for spacing a radially inner end of said blade from a bottom surface of said slot, said retainer including a main body and a resilient component for resiliently urging the blade radially outwardly of said slot.
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Abstract
The invention provides for a simple and inexpensive fabrication to provide radial position retention to minimize the problems associated with single lobe attachment radial slop.
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Citations
20 Claims
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1. A blade retention system for a rotating machine comprising:
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a hub having a plurality of shaped, generally axially extending, radially open slots at circumferentially spaced positions about the hub;
a blade having complimentary shaped base portion axially received in a said slot and extending radially outwardly therefrom; and
a radial retainer for spacing a radially inner end of said blade from a bottom surface of said slot, said retainer including a main body and a resilient component for resiliently urging the blade radially outwardly of said slot. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A radial retainer for spacing a radially inner end of a turbine blade from a bottom surface of a respective slot, comprising:
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a generally planer main body including a base portion and a frame portion; and
a resilient component, said resilient component being coupled to and extending from said base portion. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A method of radially retaining a turbine blade in a turbine blade slot, comprising:
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providing a hub having a plurality of shaped, generally axially extending, radially open slots at circumferentially spaced positions about the hub;
engaging a blade having complimentary shaped base portion with a said slot so that said base of said blade is axially slidably disposed in said slot and said blade extends radially outwardly therefrom; and
inserting a radial retainer between a radially inner end of said blade and a bottom surface of said slot, said radial retainer including a main body and a resilient component for resiliently urging the blade radially outwardly of said slot. - View Dependent Claims (17, 18, 19, 20)
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Specification