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특허 상세정보

Inducer tip vortex suppressor

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F04D-027/02   
미국특허분류(USC) 415/058.4; 415/183; 415/186; 415/914
출원번호 US-0737585 (2003-12-16)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 17  인용 특허 : 3
초록

Embodiments of the invention provide a method, device, and turbopump configured to suppress higher order cavitations at an inducer tip in a turbopump. An inducer having a tip is rotated, and a first flow is induced axially through the inducer at a first velocity. A second fluid flow is introduced toward a tip of the inducer substantially parallel to the first fluid flow at a second velocity that is greater than the first velocity, such that back flow through the tip of the inducer is reduced.

대표
청구항

What is claimed is: 1. A method for suppressing cavitation at an inducer blade tip in a pump, the method comprising: rotating an inducer having a tip clearance; inducing a first fluid flow axially through the inducer at a first velocity; and introducing a second fluid flow toward the tip clearance substantially parallel to the first fluid flow at a flow rate with a second velocity, greater than the first velocity, such that back flow through the tip clearance of the inducer is reduced, wherein introducing the second fluid flow includes introducing the s...

이 특허를 인용한 특허 피인용횟수: 17

  1. Clemen, Carsten; Schrapp, Henner. Casing structure for stabilizing flow in a fluid-flow machine. USP2012098262351.
  2. Johann, Erik. Casing treatment for axial compressors in a hub area. USP2012088251648.
  3. Krivitzky, Eric M.; Larosiliere, Louis M.. Centrifugal turbomachines having extended performance ranges. USP2017029567942.
  4. Palko, John. Compressor stage of a turbocharger with flow amplifier. USP2016129528431.
  5. Chen, Hua. Exhaust gas recirculation mixer. USP2010057721542.
  6. Guemmer, Volker. Fluid flow machine. USP2013028382422.
  7. Guemmer, Volker. Fluid flow machine featuring a groove on a running gap of a blade end. USP2012098257022.
  8. Guemmer, Volker; Swoboda, Marius. Fluid flow machine featuring an annulus duct wall recess. USP2013048419355.
  9. Guemmer, Volker. Fluid flow machine with peripheral energization near the suction side. USP2014098834116.
  10. Watanabe, Hiroyoshi. Inducer. USP2018059964116.
  11. Todorovic, Predrag. Noise-reduced aircraft engine and method for reducing noise emissions of an aircraft engine. USP2012078220586.
  12. Guemmer, Volker. Turbomachine exerting dynamic influence on the flow. USP2012098262340.
  13. Guemmer, Volker. Turbomachine with fluid removal. USP2009097594793.
  14. Guemmer,Volker. Turbomachine with fluid removal. USP2008047364404.
  15. Guemmer,Volker. Turbomachine with fluid supply. USP2008067387487.
  16. Gümmer, Volker. Turbomachine with means for the creation of a peripheral jet on the stator. USP2011067967556.
  17. Grabowski, Zbigniew M.; Morris, Robert J.; Carmichael, Ray W.. Variable area fan nozzle fan flutter management system. USP2015079074531.