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Bolt Windage Breaking Ring

IP.com Disclosure Number: IPCOM000198712D
Original Publication Date: 2010-Aug-23
Included in the Prior Art Database: 2010-Aug-23
Document File: 1 page(s) / 91K

Publishing Venue

Siemens

Related People

Juergen Carstens: CONTACT

Abstract

Due to protruding components in gas turbines such as bolt and nut heads on rotating parts or in cavities adjacent to discs or rotor, the cooling air can be heated up. Therefore, it is proposed to add a windage breaking ring into the rotating assembly where the protruding nuts or bolts are placed.

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Bolt Windage Breaking Ring

Idea: Johan Friis, SE-Finspång

Due to protruding components in gas turbines such as bolt and nut heads on rotating part cavities adjacent to discs or rotor, the cooling air can be heated up. Therefore, it is p windage breaking ring into the rotating assembly where the protruding nuts or bolts
ring can be produced as a solid ring or as a hollow plate ring. Furthermore, the ring
for bolts/nuts. In Figure 1 a windage ring in a disc assembly including disc bol
the conceptual layout of the ring is shown. Furthermore, it is p

of local protrusions around the circumference. The thre

     s or in roposed to add a are placed. The

                                                     has countersinks ts is depicted. In Figure 2 ossible to seal the countersinks for holes with threaded plugs. The mounting of the windage ring leads to an axi-symmetric rotating part instead aded plugs, if used, lead to an entire axi- symmetric bolt windage ring. Hence the windage heating can be minimized.

Figure 1: Windage ring in a disc assembly including disc bolts

Figure 2: Ring with countersinks for bolts/nuts

© SIEMENS AG 2010 file: 2010J10918.doc page: 1

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