FR2319072A1 - Flow noise silencer for ducts - has apertured plate abutted on downstream side by cellular material - Google Patents

Flow noise silencer for ducts - has apertured plate abutted on downstream side by cellular material

Info

Publication number
FR2319072A1
FR2319072A1 FR7522714A FR7522714A FR2319072A1 FR 2319072 A1 FR2319072 A1 FR 2319072A1 FR 7522714 A FR7522714 A FR 7522714A FR 7522714 A FR7522714 A FR 7522714A FR 2319072 A1 FR2319072 A1 FR 2319072A1
Authority
FR
France
Prior art keywords
cellular material
downstream side
ducts
plate
flow noise
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.)
Granted
Application number
FR7522714A
Other languages
French (fr)
Other versions
FR2319072B1 (en
Inventor
Christian Pailly
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.)
Electricite de France SA
Original Assignee
Electricite de France SA
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 Electricite de France SA filed Critical Electricite de France SA
Priority to FR7522714A priority Critical patent/FR2319072A1/en
Publication of FR2319072A1 publication Critical patent/FR2319072A1/en
Application granted granted Critical
Publication of FR2319072B1 publication Critical patent/FR2319072B1/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/02—Energy absorbers; Noise absorbers
    • F16L55/027—Throttle passages
    • F16L55/02745—Throttle passages by passing through a mass of particles or a porous member

Abstract

The device to silence the noise of flowing fluid has a plate formed of a cellular material which is placed against a perforated plate. The cellular material plate is placed on the downstream side of the perforated plate. The cellular material is formed of a metal which may be nickel, nickel-chrome, an iron chrome alloy or copper. The perforated plate pref. has a porosity between 3% and 30% and a thickness between 1mm and 10mm. The cellular plate thickness is pref. between 10mm and 50mm, the assembly of the plates being carried by an annular member with an axial locating flange.
FR7522714A 1975-07-21 1975-07-21 Flow noise silencer for ducts - has apertured plate abutted on downstream side by cellular material Granted FR2319072A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7522714A FR2319072A1 (en) 1975-07-21 1975-07-21 Flow noise silencer for ducts - has apertured plate abutted on downstream side by cellular material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7522714A FR2319072A1 (en) 1975-07-21 1975-07-21 Flow noise silencer for ducts - has apertured plate abutted on downstream side by cellular material

Publications (2)

Publication Number Publication Date
FR2319072A1 true FR2319072A1 (en) 1977-02-18
FR2319072B1 FR2319072B1 (en) 1981-02-06

Family

ID=9158146

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7522714A Granted FR2319072A1 (en) 1975-07-21 1975-07-21 Flow noise silencer for ducts - has apertured plate abutted on downstream side by cellular material

Country Status (1)

Country Link
FR (1) FR2319072A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0126346A2 (en) * 1983-05-18 1984-11-28 KÜBA Kühlerfabrik Heinrich W. Schmitz GmbH Apparatus for dividing a stream of a liquid-gas mixture into a multitude of partial streams
EP0479620A1 (en) * 1990-10-04 1992-04-08 Masayuki Hiraoka Filter device
EP1564475A1 (en) * 2004-02-17 2005-08-17 Gaz De France Flow conditioner for fluid conveying conduit
EP3540207A1 (en) * 2013-12-09 2019-09-18 Dayco IP Holdings, LLC Noise attenuation unit for engine systems

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0126346A2 (en) * 1983-05-18 1984-11-28 KÜBA Kühlerfabrik Heinrich W. Schmitz GmbH Apparatus for dividing a stream of a liquid-gas mixture into a multitude of partial streams
EP0126346A3 (en) * 1983-05-18 1985-03-13 Kuba Kuhlerfabrik Heinrich W. Schmitz Gmbh Apparatus for dividing a stream of a liquid-gas mixture into a multitude of partial streams
EP0479620A1 (en) * 1990-10-04 1992-04-08 Masayuki Hiraoka Filter device
EP1564475A1 (en) * 2004-02-17 2005-08-17 Gaz De France Flow conditioner for fluid conveying conduit
FR2866410A1 (en) * 2004-02-17 2005-08-19 Gaz De France FLOW CONDITIONER FOR FLUID TRANSPORT PIPING
US7370675B2 (en) 2004-02-17 2008-05-13 Gaz De France Flow conditioner for a fluid transport pipe
CN100414167C (en) * 2004-02-17 2008-08-27 法国天然气公司 Flow conditioner for a fluid transport pipe
EP3540207A1 (en) * 2013-12-09 2019-09-18 Dayco IP Holdings, LLC Noise attenuation unit for engine systems

Also Published As

Publication number Publication date
FR2319072B1 (en) 1981-02-06

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Legal Events

Date Code Title Description
ST Notification of lapse