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특허 상세정보

Method and apparatus of pulsed injection for improved nozzle flow control

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F02K-001/30    F02K-001/28   
미국특허분류(USC) 602/04 ; 602/31 ; 602/30 ; 602/71 ; 23/926.519 ; 23/926.517
출원번호 US-0906731 (1997-08-05)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Gray Cary Ware & Freidenrich LLP
인용정보 피인용 횟수 : 18  인용 특허 : 9
초록

An apparatus and method for varying the effective cross sectional area of an opening through a nozzle provides a controller 78 that pulses a fluidic cross flow through an injector associated with the nozzle 68 proximate to the opening of the nozzle. The controller 78 directs the injector 76 to provide a pulsed cross flow having a predetermined frequency, amplitude, or wave form. The pulsed cross flow interacts with a primary flow 14 through the nozzle 68 to partially block the nozzle's opening 72, thereby effectively decreasing the cross sectional area o...

대표
청구항

[ What is claimed is:] [47.] A method for controlling a primary flow through a small area expansion ratio nozzle by varying an effective throat of the nozzle, comprising the steps of:directing a primary flow through the nozzle wherein the primary flow has a subsonic region prior to the effective throat; anddirecting a pulsed cross flow opposed to the primary flow of the nozzle to vary an effective size, location, and orientation of the effective throat, wherein said pulsed cross flow is injected to oppose the primary flow from at least one primary inject...

이 특허를 인용한 특허 피인용횟수: 18

  1. Ruggeri, Robert T.; Gutmark, Ephraim. Active flow control with pulse detonation actuators. USP2014118887482.
  2. Lee, Douglas; Anderson, J. Thomas; Hershberger, Brian K.. Apparatus and method for controlling primary fluid flow using secondary fluid flow injection. USP2004016679048.
  3. Berg, Gerald R.; Messersmith, Nathan L.; Lidstone, Gary L.; Hinkey, John. Combustion nozzle fluidic injection assembly. USP2010087775460.
  4. Hollimon, Charles; Barber, John; Sherrer, John Herman; Laramee, Robert. Engine exhaust system with directional nozzle. USP2012038132755.
  5. Froemming, Kenneth W.; Lerg, Bryan H.. Exhaust nozzle apparatus and method for multi stream aircraft engine. USP2018019863366.
  6. Alhatim, Omair M.. Exhaust nozzle of a gas turbine engine. USP2016039297334.
  7. Patel, Nayan Vinodbhai; Thomsen, Duane Douglas; McCarren, Michael John; Vandevoorde, Kevin. Fuel nozzle structure. USP2016099453461.
  8. Winkler, Chad M.; Dorgan, Andrew J.; Werner, Eric L.. Method and apparatus for nozzle thrust vectoring. USP2017019551296.
  9. Miller, Daniel N.; Yagle, Patrick J.; Ginn, Kerry B.; Hamstra, Jeffrey W.. Method and apparatus of asymmetric injection into subsonic flow of a high aspect ratio/complex geometry nozzle. USP2005116962044.
  10. Saddoughi, Seyed; Pinard, Pierre; Boespflug, Matthew; Steenburgh, Dennis. Mixing-enhancement inserts for pulse detonation chambers. USP2009047520123.
  11. Dressler, Gordon A.; Mueller, Thomas J.; Rotenberger, Scott J.. Pintle injector rocket with expansion-deflection nozzle. USP2003076591603.
  12. Hunter, Louis G.; Miller, Daniel N.; Hagseth, Paul E.. System of pulsed detonation injection for fluid flow control of inlets, nozzles, and lift fans. USP2004076758032.
  13. Alhatim, Omair M.. System of support thrust from wasted exhaust. USP2018019879636.
  14. Smith, III, Crawford F.; Bergeron, Steve. Thrust vector system. USP2014088800259.
  15. Niergarth, Daniel Alan; Prentice, Ian Francis; Kroger, Christopher James. Variable pitch fan blade retention system. USP20181010100653.
  16. Miller, Brandon Wayne; Prentice, Ian Francis; Niergarth, Daniel Alan. Variable pitch fan for gas turbine engine and method of assembling the same. USP20180910072510.
  17. Niergarth, Daniel Alan; Miller, Brandon Wayne; Bradley, Donald Albert. Variable-pitch rotor with remote counterweights. USP2018019869190.
  18. Thomas, Russell H.; Kinzie, Kevin W.. Wet active chevron nozzle for controllable jet noise reduction. USP2011098015819.