Invention Grant
- Patent Title: Hybrid metal and composite spool for rotating machinery
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Application No.: US14628311Application Date: 2015-02-23
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Publication No.: US09777593B2Publication Date: 2017-10-03
- Inventor: Bowden Kirkpatrick , Nicholas Joseph Kray , Todd Alan Anderson , Stefaan Guido Van Nieuwenhove , Po-Ching Yeh
- Applicant: General Electric Company
- Applicant Address: US NY Schenectady
- Assignee: General Electric Company
- Current Assignee: General Electric Company
- Current Assignee Address: US NY Schenectady
- Agency: General Electric Company
- Agent William Scott Andes
- Main IPC: F01D5/30
- IPC: F01D5/30 ; F01D25/00 ; F01D11/02 ; F01D5/06 ; F01D5/28

Abstract:
A hybrid metal and composite spool includes metal rings on an outer diameter of a composite spool shell. Metal rings may include features such as annular or axial dovetail slots. Adhesive layers may be between the metal rings and composite shell which may be connected by a shrink bonded joint. The metal rings may include a single seal tooth ring with an annular radially extending seal tooth. A method for fabricating the spool may include fabricating one or more metal rings with the features therein, positioning the metal rings in place on an outer surface of an uncured composite spool shell of the spool before curing the shell, and curing the shell with the one or more metal rings positioned in place. Alternatively, rings may be heated to a temperature at least sufficient to slide rings over a cured composite shell, and allowed to cool and shrink onto shell.
Public/Granted literature
- US20160245086A1 HYBRID METAL AND COMPOSITE SPOOL FOR ROTATING MACHINERY Public/Granted day:2016-08-25
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