Title:
先端摩擦荷重を低減するためのロータブレード及び方法
Document Type and Number:
Japanese Patent JP2012532268
Kind Code:
A
Abstract:
An air foil (42) for use in a rotor assembly is disclosed, the airfoil having a tip- cutter (100) located on a sidewall (44) near a tip portion (60). Wherein the tip-cutter (100) ?s capable of removing a portion of an abradable material (32) during a tip rub. In another embodiment an airfoil (42) has a tip-grinder (120) located on the tip portion (60) wherein the tip-grinder (120) capable of removing a portion of an abradable material (32) during a tip rub in another embodiment an airfoil (42) has a tip-rake (110) that facilitates reducing loading induced to said airfoil (42) during tip rubs. A method (300) for reducing tip rub loads in a rotor blade (15) is described comprising the steps of incorporating a tip-cutter (100) having a selected a cutter-profile (102) on a selected location on the blade (15) such that tip-cutter (100) is capable of removing a portion of a static structure (32) during a tip rub such that tip rub loads are facilitated to be reduced.
Inventors:
Clay, Nicholas Joseph
Clar, David W
Morman, Daniel Yee
Gardner, Donald Lee
Johnson, Marcia Boyle
Weaver, Howard Pea
Furson, Max Robert
Clar, David W
Morman, Daniel Yee
Gardner, Donald Lee
Johnson, Marcia Boyle
Weaver, Howard Pea
Furson, Max Robert
Application Number:
JP2012517542A
Publication Date:
December 13, 2012
Filing Date:
June 02, 2010
Export Citation:
Assignee:
GENERAL ELECTRIC COMPANY
International Classes:
F04D29/38; F01D5/28; F01D11/08; F04D29/52; F04D29/66
Domestic Patent References:
| JP3050537U | 1998-07-21 | |||
| JP2008163949A | 2008-07-17 | |||
| JP3050537U | 1998-07-21 |
Attorney, Agent or Firm:
Arakawa Satoshi
Hirokazu Ogura
Toshihisa Kurokawa
Takuto Tanaka
Hirokazu Ogura
Toshihisa Kurokawa
Takuto Tanaka