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특허 상세정보

Hollow blade for a turbomachine and method of manufacturing said blade

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B23P-015/00   
미국특허분류(USC) 29/8897 ; 416/233
출원번호 US-0111892 (1993-08-26)
우선권정보 FR-0010470 (1992-09-02); JP-0234982 (1992-09-02)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 13  인용 특허 : 0
초록

A hollow blade for a turbomachine comprises a unitary body having a multiplicity of transverse cavities in at least the airfoil shaped portion of the blade, and plugs disposed within the cavities and restoring the surface continuity of the intrados and extrados faces of the aerofoil shaped portion, the plugs being rigidly secured to the unitary body, such as by welding.

대표
청구항

A method of manufacturing a hollow blade for a turbomachine comprising the following steps: a) producing a unitary blade blank by forging, said blade blank including an airfoil shaped portion; b) machining a multiplicity of holes in said airfoil shaped portion such that a zone of specific width is left clear at the edge of said airfoil shaped portion and said holes are substantially evenly distributed over the remaining area of said airfoil portion and provide a cavity ratio of about 90% in said remaining area; c) producing plugs with a shape adapted to ...

이 특허를 인용한 특허 피인용횟수: 13

  1. Lewis, Thomas M.; Parin, Michael L.. Air-film vibration damping apparatus for windows. USP2013058439154.
  2. Lewis, Thomas M.; Parin, Michael L.. Air-film vibration damping apparatus for windows. USP2014108851423.
  3. Henderson Daniel A. ; Townsley Darren. Dialer programming system and device with integrated printing process. USP2000026028926.
  4. Samit Marc ; Welch Douglas A. ; Duesler Paul W. ; Markham Patrick D. ; Penda Allan R.. Impact resistant hollow airfoils. USP2000046048174.
  5. Eilert,Theodore J.; Harkins,Henry D.; Kornfeld,Roger E.; Breer,Marlin D.. Method and apparatus for forming complex contour structural assemblies. USP2008107431196.
  6. Nash, Grant. Method and apparatus for reducing noise transmission through a window. USP2017059645120.
  7. Michael A. Taras, Jr. ; Stephen M. Sabol. Method for closing core printout holes in superalloy gas turbine blades. USP2002096454156.
  8. Mathon, Richard; Magnaudeix, Dominique; Souhaite, Noemie; Marchal, Yann; Gimat, Matthieu. Method for producing preforms. USP2018039919457.
  9. Clarke Richard D.. Outsole of a shoe. USP199911D417065.
  10. Eilert, Theodore J.; Harkins, Henry D.; Kornfeld, Roger E.; Breer, Marlin D.. Preform for forming complex contour structural assemblies. USP2011017866535.
  11. Sjogren,John F.; Eilert,Theodore J.; Harkins,Henry D.. System and method for processing a preform vacuum vessel to produce a structural assembly. USP2006057049548.
  12. Krause, Gregory Thomas. System and method for sealing vacuum in hollow fan blades. USP2013088510925.
  13. Lewis, Thomas M.; Parin, Michael L.. Vibration damping apparatus for windows using viscoelastic damping materials. USP2010057721844.