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Fluidborne noise attenuator

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F01N-001/04    F16L-055/02   
미국특허분류(USC) 181/233 ; 181/248 ; 181/252 ; 181/276
출원번호 US-0081219 (1979-03-07)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 45  인용 특허 : 2
초록

A fluidborne noise attenuator (14) comprises a dampening medium (27) which exhibits a bulk modulus (e.g., 50,000 psi to 180,000 psi) substantially greater than that of an inert gas, such as nitrogen, and substantially less than that of a hydraulic working fluid (e.g., 225,000 psi). The attenuator (14) is capable of attenuating noise levels of hydraulic fluid over wide frequency and mean system pressure ranges in contrast to conventional attenuators which are “tuned”for the attenuation of noise levels at a specific frequency and mean system pressure.

대표
청구항
▼

A hydraulic fluidborne noise attenuator (14) comprising a rigid, tubular outer casing (22), flow passage means (14′) for communicating hydraulic fluid through said attenuator (14), said flow passage means (14′) having an inlet (13) at a first end thereof and an outlet (15) at a second end thereof, and fluidborne noise means (27) for exhibiting a bulk modulus substantially greater than the bulk modulus of a gas and substantially less then the bulk modulus of said hydraulic fluid to attenuate noise levels at frequencies that vary over at least substantiall...

이 특허에 인용된 특허 (2)

  1. Malecha ; Richard J.. Fluid-borne noise-suppressor for hydraulic pump. USP1978014067195.
  2. Johansson ; Folke Ingvar. Vibration damper for impact tool. USP1978054086984.

이 특허를 인용한 특허 피인용횟수: 45

  1. Saveliev,Michael; Jersey,Steven T.. Accumulator tank assembly and method. USP2006037013925.
  2. Moffat, George H.; Stubbs, Gene Woodard; Voll, William Albert. Acoustic muffler for turbine engine. USP2004026695094.
  3. Quigley,James M.. Acoustic noise filter. USP2007107278514.
  4. Nguyen, Phuong H.; Sikora, Joseph A.; Campbell, Thomas A.. Automatic control systems for aircraft auxiliary power units, and associated methods. USP2011118061650.
  5. Nguyen, Phuong H.; Sikora, Joseph A.; Campbell, Thomas A.. Automatic control systems for aircraft auxiliary power units, and associated methods. USP2011027891605.
  6. Nguyen,Phuong H.; Sikora,Joseph A.; Campbell,Thomas A.. Automatic control systems for aircraft auxiliary power units, and associated methods. USP2008047364116.
  7. Lam, Kam-Kei. Combustor dynamic attenuation and cooling arrangement. USP2015099121610.
  8. Mantel Juval (Simeonistrasse 19 D-8000 Mnchen 19 DEX). Device for reducing static and dynamic pressures in pipelines, particularly of solid-borne sound in tubular conduits. USP1984054448538.
  9. Kandelman Allen (Granada Hills CA). Distributed accumulator. USP1987034651781.
  10. Campbell, Thomas A.; Chambers, David S.; Willie, Robert H.; Rust, Charles W.. Dual flow APU inlet and associated systems and methods. USP2009117611093.
  11. Campbell,Thomas A.; Chambers,David S.; Willie,Robert H.; Rust,Charles W.. Dual flow APU inlet and associated systems and methods. USP2008037344107.
  12. Brown,Daniel V.; Asplund,Kyle D.; Michalski, Jr.,Joseph W.. Eccentric exhaust muffler for use with auxiliary power units. USP2008057367424.
  13. Huff, Dennis L.; Huff, Ronald G.. Exhaust sound attenuation device and method of use. USP2012098256569.
  14. DiPerna, Paul M. Flow regulating stopcocks and related methods. USP2013048408421.
  15. Liu, Zheji; Kuzdzal, Mark Joseph; Benjamin, Dan. Fluid expansion device and method with noise attenuation. USP2011118061961.
  16. Liu, Zheji; Kuzdzal, Mark Joseph. Fluid-carrying conduit and method with noise attenuation. USP2011077984787.
  17. Pawelski Paul C.. Hydraulic noise reduction assembly with variable side branch. USP2001056234758.
  18. Bayliss, Andrew J.; Paterson, John T.; Retz, Kevin. Independent power generation in aircraft. USP2015028950703.
  19. Bayliss, Andrew J.; Paterson, John T.; Retz, Kevin. Independent power generation in aircraft. USP2014028657227.
  20. DiPerna, Paul M.; Brown, David; Rosinko, Mike; Kincade, Dan; Michaud, Michael; Nadworny, John; Kruse, Geoffrey A.; Ulrich, Thomas R.. Infusion pump system with disposable cartridge having pressure venting and pressure feedback. USP2012108298184.
  21. DiPerna, Paul M.; Brown, David; Rosinko, Mike; Kincade, Dan; Michaud, Michael; Nadworny, John; Kruse, Geoffrey A.; Ulrich, Thomas R.. Infusion pump system with disposable cartridge having pressure venting and pressure feedback. USP2015129211377.
  22. Michaud, Michael; Kruse, Geoffrey A.. Infusion pump system with disposable cartridge having pressure venting and pressure feedback. USP2012108287495.
  23. Michaud, Michael; Kruse, Geoffrey A.. Infusion pump system with disposable cartridge having pressure venting and pressure feedback. USP2014068758323.
  24. Verhoef, Erik T.; DiPerna, Paul M.; Rosinko, Mike; Williamson, Mark; Kruse, Geoffrey A.; Ulrich, Thomas R.; Lamb, Phil; Saint, Sean; Michaud, Michael; Trevaskis, William. Infusion pump system with disposable cartridge having pressure venting and pressure feedback. USP2015018926561.
  25. Campbell,Thomas A.; Voll,William A.; Diamond,John A.. Integrated axially varying engine muffler, and associated methods and systems. USP2007097267297.
  26. Lane, Steven A.; Richard, Robert E.; Griffin, Steven F.. Lightweight acoustic damping treatment. USP2010107819221.
  27. Kulikov, Vadim Gennadyevich; Primenko, Vladimir Nikolaevich; Zamataev, Valery Anatolievich. Micro pipeline pressure stabilization apparatus. USP2011017874317.
  28. Tanaka Hideharu (Hyogo JPX) Sekiya Mutsuo (Hyogo JPX) Uchikawa Fusaoki (Kanagawa JPX). Muffler for exhaust gas from an internal combustion engine. USP1985064523662.
  29. Angelo Theodore G. ; Hamrin John ; Stenersen Eivind ; Hiemstra John ; Wagner Wayne M. ; Wiegandt Ted J.. Mufflers for use with engine retarders; and methods. USP2000076082487.
  30. Theodore G. Angelo ; John Hamrin ; Eivind Stenersen ; John Hiemstra ; Wayne M. Wagner ; Ted J. Wiegandt. Mufflers for use with engine retarders; and methods. USP2002036354398.
  31. Young Robert E. (12 Whitnash Road Leamington Spa ; Warwickshire CV31 2HN GB2). Noise silencing systems. USP1988114785909.
  32. Karim, Ahsanul; Vempati, Abhijyoth; Zouani, Abdelkrim. Noise-reduction mechanism for oil pump. USP2018069989059.
  33. DiPerna, Paul M.. Slideable flow metering devices and related methods. USP2013058448824.
  34. Brown, David. Solute concentration measurement device and related methods. USP2014028650937.
  35. Keller,Uwe; Lowe,Hans Joachim; Von Der Hagen,Joachim; Metz,Dietmar; Stonner,Helmut. Sound absorber. USP2008067387188.
  36. Furuta Naoyuki (Tokyo JPX) Yamamura Shinta (Kanagawa JPX). Sound absorbing pipe. USP1990024899846.
  37. Rosinko, Michael J.; Kruse, Geoffrey A.; Harris, Paul. System and method for detecting occlusions in an infusion pump. USP2018059962486.
  38. DiPerna, Paul Mario. System of stepped flow rate regulation using compressible members. USP2011118056582.
  39. Zielinski, Edward; Bernier, Alan T.; Knechtel, Kent W.; Campbell, Thomas A.; White, Jeffrey J.; Ralston, Mark D.. Systems and methods for starting aircraft engines. USP2009047513119.
  40. Metzmaker, Thomas; Saint, Sean; Michaud, Michael; Rosinko, Michael J.; Swanson, Vance. Systems including vial adapter for fluid transfer. USP20190410258736.
  41. Lwasa, Ronald M.; Chow, Allen D.. Thermally compliant APU exhaust duct arrangements and associated systems and methods. USP2010087765784.
  42. Cheng,C. Raymond; Quabili,Zakir Ahmad; Gunderson,Larry T.; Holzmann,Mark V.. Tubular acoustic silencer. USP2009037497301.
  43. DiPerna, Paul M.. Two chamber pumps and related methods. USP2015038986253.
  44. Karimi, Kamiar J.; Liu, Shengyi; Liffring, Mark E.; Helton, Steven B.; Fu, Sheau-Wei (Johnny). Vehicle electrical power management and distribution. USP2014058738268.
  45. Schucker Thomas R. (York PA). Vibration-dampened discharge ring for bulb hydraulic turbines. USP1984064453887.

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