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    4.
    发明专利
    未知

    公开(公告)号：DE602005008311D1

    公开(公告)日：2008-09-04

    申请号：DE602005008311

    申请日：2005-05-27

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： MONGILLO JR DOMINIC J ,  LEVINE JEFFREY R ,  GREGG SHAWN J ,  PIETRASZKIEWICZ EDWARD

    IPC: F01D5/18 ,  F02C7/18

    Abstract: A rotor blade (14) is provided that includes a root (20) and a hollow airfoil (22). The hollow airfoil (22) has a cavity defined by a suction side wall (38), a pressure side wall (36), a leading edge (32), a trailing edge (34), a base (28), and a tip (30). An internal passage configuration (40) is disposed within the cavity. The configuration includes a passage (50) disposed adjacent the leading edge (32), and an axially extending passage (52) disposed adjacent the tip (30). The first passage (50) is connected to the second passage (52). The second passage (52) includes an opening disposed at the trailing edge (34) of the airfoil. A conduit (42) is disposed within the root (20) that is operable to permit airflow through the root (20) and into the leading edge passage (50), wherein the conduit (42) provides the primary path into the leading edge passage (42).

    6.
    发明专利
    未知

    公开(公告)号：NO20045594L

    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

    Abstract: A cast vane cluster (32) with enhanced cooling contains an inner and an outer platform (34, 36) and at least two airfoils (38) for directing a primary fluid stream axially rearward . A duct (56) is bounded by inner and outer endwall surfaces (40, 44), and adjacent airfoil fluid directing surfaces. One or more cooling holes (62) 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 (62), located in portions of the duct, may not be visible when viewed from an external location. Additionally, one or more cooling holes (62) may only have an outlet cross sectional ar ea (66) visible when viewed along a longitudinal axis from an external location.

    Cooled vane cluster
    10.
    发明专利
    Cooled vane cluster 未知

    公开(公告)号：AU2004240240A1

    公开(公告)日：2005-07-07

    申请号：AU2004240240

    申请日：2004-12-21

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： PIETRASZKIEWICZ EDWARD ,  COONS TODD

    IPC: F01D9/02 ,  F01D5/18 ,  F01D9/04 ,  F01D9/00 ,  F02C7/24

    Abstract: A cast vane cluster (32) with enhanced cooling contains an inner and an outer platform (34, 36) and at least two airfoils (38) for directing a primary fluid stream axially rearward . A duct (56) is bounded by inner and outer endwall surfaces (40, 44), and adjacent airfoil fluid directing surfaces. One or more cooling holes (62) 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 (62), located in portions of the duct, may not be visible when viewed from an external location. Additionally, one or more cooling holes (62) may only have an outlet cross sectional ar ea (66) visible when viewed along a longitudinal axis from an external location.

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