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특허 상세정보

Noise reducing stator assembly for a gas turbine engine

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F02C-070/45   
미국특허분류(USC) 60/226.1 ; 181/222 ; 415/119
출원번호 US-0780072 (1996-12-23)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Krasinski
인용정보 피인용 횟수 : 7  인용 특허 : 17
초록

A stator assembly for reducing noise in the outermost portion of the working medium flow path is disclosed. Various construction details are developed which relate to the reduction in noise within the outer twenty percent (20%) of the working medium flow path. In one particular embodiment, an annular channel extends rearwardly from a location between the blades and the vanes for capturing a significant portion of the wake turbulent flow from the tip region of the rotor blades. The annular channel is bounded by a pair of circumferentially extending walls,...

대표
청구항

[ What is claimed is:] [1.] A stator assembly for a gas turbine engine having an axis of rotation A.sub.r, a flow path for working medium gases disposed about the axis of rotation, a first outer wall extending circumferentially about the axis of rotation and outwardly bounding the flow path for working medium gases, an array of rotor blades having an axial location, each rotor blade extending radially outwardly across the flow path and having a tip region such that the tip region is in close proximity with the outer wall, an array of stator vanes spaced ...

이 특허에 인용된 특허 (17)

  1. Arcas Noe (Plainview NY) Parente Charles A. (Oyster Bay NY). Acoustic liner. USP1991055014815.
  2. Arcas Noe (Plainview NY) Parente Charles A. (Oyster Bay NY). Acoustic liner. USP1990114969535.
  3. Bammert ; Karl ; Staude ; Rudolf. Device for extending the working range of axial flow compressors. USP1978094116584.
  4. Larson Richard S. (Rocky Hill CT) Packman Allan B. (West Hartford CT). Gas turbine noise suppressor. USP1981084284170.
  5. Torkelson Delbert W. (Claremore OK). Jet engine fixed plug noise suppressor. USP1992125167118.
  6. Torkelson Delbert W. (Claremore OK). Jet engine noise reduction system. USP1991105060471.
  7. Torkelson Delbert W. (Claremore OK). Jet engine noise suppression system. USP1990034909346.
  8. Shaw ; Jr. Leonard L. (Troy OH). Jet noise suppressor and method. USP1992035092425.
  9. Paulson Allen E. (P.O. Box 2206 Savannah GA 31402). Method and apparatus for quieting a turbojet engine. USP1993045203164.
  10. Harris Alfred W. (Bellevue WA). Noise reducing air inlet for gas turbine engines. USP1980124240250.
  11. Batey John G. (Cordova TN) Burrets Park W. (Memphis TN) Grewe William F. (Memphis TN) Whitestone Bruce G. (Germantown TN) Yerger Mark D. (Collierville TN). Noise reduction kit for jet turbine engines. USP1992075127602.
  12. Fletcher James C. Administrator of the National Aeronautics and Space Administration ; with respect to an invention of ( Palo Alto CA) Cheng Dah Y. (Palo Alto CA). Noise suppressor for turbo fan jet engines. USP1983024372110.
  13. Carr Thomas W. (Chula Vista CA) Rose Philip M. (Chula Vista CA). Quiet nacelle system and hush kit. USP1988024723626.
  14. Carr Thomas W. (Chula Vista CA) Rose Philip M. (Chula Vista CA) Marsh Alan H. (Huntington Beach CA). Quiet nacelle system and hush kit. USP1989044817756.
  15. Shuttleworth, Richmond G.; Snyder, Gene R.; Ballou, Richard P.. Sound absorbing structure. USP1983054384634.
  16. Mathews Douglas C. (Marlborough CT) Peracchio Aldo A. (South Windsor CT). Sound absorbing structure for a gas turbine engine. USP1984064452335.
  17. Bonneau Hilaire (Boucherville CAX). Sound suppressor liner. USP1984024433751.