公开(公告)号：NO20045594A

公开(公告)日：2005-06-23

申请号：NO20045594

申请日：2004-12-22

Applicant: UNITED TECHNOLOGIES CORP

Inventor： PIETRASZKIEWICZ EDWARD ,  COONS TODD

IPC: F01D9/02 ,  F01D5/18 ,  F01D9/04 ,  F01D5/12 ,  F01D5/00

CPC classification number: F01D9/041 ,  F01D5/18 ,  F05D2230/12 ,  F05D2230/21 ,  F05D2260/202

公开(公告)号：CA2489964A1

公开(公告)日：2005-06-22

申请号：CA2489964

申请日：2004-12-13

Applicant: UNITED TECHNOLOGIES CORP

Inventor： COONS TODD ,  PIETRASZKIEWICZ EDWARD

IPC: F01D9/02 ,  F01D5/18 ,  F01D9/04 ,  F02C7/12

Abstract: A cast vane cluster with enhanced cooling contains an inner and an outer platform and at least two airfoils for directing a primary fluid stream axially rearward. A duct is bounded by inner, an outer endwall surfaces, and adjacent airfoil fluid directing surfaces. One or more cooling holes in the duct are drilled using an electrodischarge machine (EDM) method without a line of sight from the drilling equipment to the cooling hole location. One or more cooling holes, located in portions of the duct, may not be visible when viewed from an external location. Additionally, one or more cooling holes may only have an outlet cross sectional area visible when viewed along a longitudinal axis from an external location.

公开(公告)号：CA2489963A1

公开(公告)日：2005-06-22

申请号：CA2489963

申请日：2004-12-13

Applicant: UNITED TECHNOLOGIES CORP

Inventor： COONS TODD ,  PIETRASZKIEWICZ EDWARD

IPC: B23H7/10 ,  B23H7/26 ,  B23H9/10 ,  B23H9/14 ,  B23K26/38 ,  B23K103/08 ,  F01D9/00 ,  F01D25/00 ,  F02C7/00 ,  B23B49/00 ,  B23B35/00 ,  B23B49/02 ,  B23B47/28

Abstract: A hole-drilling guide for directing a flexible hole-drilling instrument includes: a body made of an electrically insulating material, at least one inlet aperture penetrating a face of the body, at least one exit aperture penetrating a face of the body and a hollow nonlinear raceway linking the inlet and exit apertures.