AU2002364469A1 - Silent gas expansion diffuser - Google Patents

Silent gas expansion diffuser

Info

Publication number
AU2002364469A1
AU2002364469A1 AU2002364469A AU2002364469A AU2002364469A1 AU 2002364469 A1 AU2002364469 A1 AU 2002364469A1 AU 2002364469 A AU2002364469 A AU 2002364469A AU 2002364469 A AU2002364469 A AU 2002364469A AU 2002364469 A1 AU2002364469 A1 AU 2002364469A1
Authority
AU
Australia
Prior art keywords
tube
sheath
gas
intake
holes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
AU2002364469A
Other versions
AU2002364469A8 (en
Inventor
Philippe Gregoire Gerard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Societe dAcoustique Industrielle SARL
Original Assignee
Societe dAcoustique Industrielle SARL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Societe dAcoustique Industrielle SARL filed Critical Societe dAcoustique Industrielle SARL
Publication of AU2002364469A1 publication Critical patent/AU2002364469A1/en
Publication of AU2002364469A8 publication Critical patent/AU2002364469A8/en
Abandoned legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/002—Air treatment devices
    • B60T17/008—Silencer devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
    • F01N1/10—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling in combination with sound-absorbing materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/24—Silencing apparatus characterised by method of silencing by using sound-absorbing materials

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Pipe Accessories (AREA)
  • Exhaust Silencers (AREA)
  • Ink Jet Recording Methods And Recording Media Thereof (AREA)
  • Paper (AREA)
  • Devices For Medical Bathing And Washing (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

The invention concerns a silent diffuser for compressed gas expansion, comprising a tube (3) for intake of the gas to be expanded, an elongated sheath (1) containing a lining (6) made of a sound damping material, one end of said sheath communicating with the tube (3) through a series of holes (9), and its opposite end emerging laterally outside through a series of orifices (2) for exhausting the expanded gas, the total surface of said orifices being significantly greater than that of said holes, such that the gas passes therethrough at sonic velocity and its velocity upstream of said intake is maintained at a subsonic level. The intake tube (3) penetrates into the elongated sheath (1) and extends centrally over the whole length thereof while being closed at its end opposite the one through which the gas to expanded enters, the lining (6) taking up the entire space extending between the sheath inner wall and the tube; the series of holes (9) is arranged directly on the tube (3) wall, immediately downstream of the location whereat it penetrates into the sheath (1).
AU2002364469A 2001-12-27 2002-12-19 Silent gas expansion diffuser Abandoned AU2002364469A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR01/16931 2001-12-27
FR0116931A FR2834312B1 (en) 2001-12-27 2001-12-27 SILENT DIFFUSER FOR GAS RELAXATION
PCT/FR2002/004455 WO2003056147A2 (en) 2001-12-27 2002-12-19 Silent gas expansion diffuser

Publications (2)

Publication Number Publication Date
AU2002364469A1 true AU2002364469A1 (en) 2003-07-15
AU2002364469A8 AU2002364469A8 (en) 2003-07-15

Family

ID=8871024

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2002364469A Abandoned AU2002364469A1 (en) 2001-12-27 2002-12-19 Silent gas expansion diffuser

Country Status (6)

Country Link
EP (1) EP1461513B1 (en)
AT (1) ATE338197T1 (en)
AU (1) AU2002364469A1 (en)
DE (1) DE60214432T2 (en)
FR (1) FR2834312B1 (en)
WO (1) WO2003056147A2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100755722B1 (en) * 2007-03-08 2007-09-05 한국뉴매틱(주) Silencer for pneumatic device
DE102009052884A1 (en) * 2009-11-13 2011-05-19 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH silencer
US10704464B2 (en) 2016-02-16 2020-07-07 General Electric Company Acoustic nozzles for inlet bleed heat systems
CN108224740A (en) * 2018-03-09 2018-06-29 中建安装工程有限公司 A kind of multistage impedance composite silencer and sound reduction method
CN110861628A (en) * 2019-11-29 2020-03-06 安徽江淮汽车集团股份有限公司 Airflow silencer and unloading valve with same
US11391207B2 (en) 2020-01-16 2022-07-19 General Electric Company Anti-icing system having a nozzle with a deflector plate and method
US11459951B2 (en) 2020-12-22 2022-10-04 General Electric Company Anti-icing system with a flow-deflector assembly
US11473501B2 (en) 2020-12-22 2022-10-18 General Electric Company Anti-icing for gas turbine system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2745509A (en) * 1950-09-22 1956-05-15 Connor Eng Corp Noise reduction device
DE1480406A1 (en) * 1963-12-05 1969-04-24 Volkswagenwerk Ag Silencer for the heating air duct of motor vehicles
DE1294393B (en) * 1965-06-08 1969-05-08 Klein Ferdinand Muffler for motor vehicles
US3561561A (en) * 1969-11-28 1971-02-09 John B Trainor Sound attenuating device
FR2518714A1 (en) * 1981-12-22 1983-06-24 Nicoll Raccords Plastiques Ventilation duct fittings for acoustic damping - pref. with walls of expanded resin lined with mineral wool
DE3832029C2 (en) * 1988-09-21 1997-12-11 Wabco Gmbh Compressed air ventilation device
FR2642470A1 (en) * 1989-01-27 1990-08-03 Glaenzer Spicer Sa SILENCER FOR EXHAUST GASES AND EXHAUST LINE PART COMPRISING SUCH SILENCER

Also Published As

Publication number Publication date
FR2834312B1 (en) 2006-11-24
DE60214432T2 (en) 2007-09-13
EP1461513B1 (en) 2006-08-30
ATE338197T1 (en) 2006-09-15
EP1461513A2 (en) 2004-09-29
FR2834312A1 (en) 2003-07-04
AU2002364469A8 (en) 2003-07-15
WO2003056147A3 (en) 2004-04-15
WO2003056147A2 (en) 2003-07-10
DE60214432D1 (en) 2006-10-12

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase