DE2749665A1 - Sound dampening flexible pipe - has porous wall sealed on outside and braced by spiral insert - Google Patents

Sound dampening flexible pipe - has porous wall sealed on outside and braced by spiral insert

Info

Publication number
DE2749665A1
DE2749665A1 DE19772749665 DE2749665A DE2749665A1 DE 2749665 A1 DE2749665 A1 DE 2749665A1 DE 19772749665 DE19772749665 DE 19772749665 DE 2749665 A DE2749665 A DE 2749665A DE 2749665 A1 DE2749665 A1 DE 2749665A1
Authority
DE
Grant status
Application
Patent type
Prior art keywords
sound dampening
braced
outside
flexible pipe
porous wall
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.)
Pending
Application number
DE19772749665
Other languages
German (de)
Inventor
Eckhard Faehnrich
Original Assignee
Eckhard Faehnrich
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

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/02Energy absorbers; Noise absorbers
    • F16L55/033Noise absorbers
    • F16L55/0336Noise absorbers by means of sound-absorbing materials
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00Hoses, i.e. flexible pipes
    • F16L11/26Hoses, i.e. flexible pipes made of sound-absorbing materials or with sound-absorbing structure

Abstract

The sound dampening flexible pipe has a flexible outer pipe wall (2) bonded to an inner porous lining (1) and with the shape of the pipe controlled by an insert spiral spring (6). The ends of the pipe section have pressed fittings for simple bonding to neighbouring sections. The pipes are self-supporting and require no preparation for use. They have corrosion resistant springs so that they can be used in exhaust systems.
DE19772749665 1977-11-05 1977-11-05 Sound dampening flexible pipe - has porous wall sealed on outside and braced by spiral insert Pending DE2749665A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19772749665 DE2749665A1 (en) 1977-11-05 1977-11-05 Sound dampening flexible pipe - has porous wall sealed on outside and braced by spiral insert

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772749665 DE2749665A1 (en) 1977-11-05 1977-11-05 Sound dampening flexible pipe - has porous wall sealed on outside and braced by spiral insert

Publications (1)

Publication Number Publication Date
DE2749665A1 true true DE2749665A1 (en) 1979-05-10

Family

ID=6023152

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19772749665 Pending DE2749665A1 (en) 1977-11-05 1977-11-05 Sound dampening flexible pipe - has porous wall sealed on outside and braced by spiral insert

Country Status (1)

Country Link
DE (1) DE2749665A1 (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3220023A1 (en) * 1982-05-27 1983-12-01 Dynamit Nobel Ag Schallgedaempfter flow channel and process for its manufacture
EP0318636A1 (en) * 1987-11-30 1989-06-07 A. KAYSER GmbH & Co. KG. Flexible pipe
DE4230823C1 (en) * 1992-09-15 1993-08-26 Alcan Deutschland Gmbh, 3400 Goettingen, De
DE4445794C1 (en) * 1994-12-21 1996-01-25 Norres Richard Gas-duct inner tube externally joined to heavy metal formers
DE4429045A1 (en) * 1994-08-16 1996-02-22 Missel Gmbh & Co E insulating material
DE4445795C1 (en) * 1994-12-21 1996-03-07 Norres Richard Gas feed component for inhibiting and dampening noise spreading in main channels
US5548093A (en) * 1993-08-20 1996-08-20 Toyoda Gosei Co., Ltd. Low noise hose
EP0780621A1 (en) 1995-12-20 1997-06-25 Richard Norres Pipe element used for decreasing and attenuating noise propagated by main pipes and having a sound absorber and/or a branch pipe
DE19600730A1 (en) * 1996-01-11 1997-07-17 Juergen Dr Kaesser Dewatering pipe component
DE19635799A1 (en) * 1996-09-04 1998-03-05 Opel Adam Ag Noise-damping hose, especially for air-suction system of internal combustion engine
DE10058479A1 (en) * 2000-11-24 2002-05-29 Mann & Hummel Filter Wide band damper for induction tract of internal combustion engine has resonance chamber adjoining induction tract and filled with absorption material separated from duct section by barrier layer on partitioning wall
DE10302049A1 (en) * 2003-01-21 2004-08-05 Daimlerchrysler Ag Water run off channels for a motor vehicle, especially a car, has a tubular foam body at the channel exit to reduce air noise
EP1870629A3 (en) * 2004-02-04 2008-06-11 Davlaras Apostolos Flexible air-duct with internal insulation of foamed polyethylene
DE102007015114A1 (en) 2007-03-29 2008-10-02 Meteor Gummiwerke K.H. Bädje GmbH & Co. KG A process for preparing a usable as a media line mounting module and mounting module

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0095582A1 (en) * 1982-05-27 1983-12-07 Cellofoam Deutschland GmbH Sound insulated flow channel and method of making the same
US4615411A (en) * 1982-05-27 1986-10-07 Dynamit Nobel Ag Sound-insulated flow duct and process for the manufacture thereof
DE3220023A1 (en) * 1982-05-27 1983-12-01 Dynamit Nobel Ag Schallgedaempfter flow channel and process for its manufacture
EP0318636A1 (en) * 1987-11-30 1989-06-07 A. KAYSER GmbH & Co. KG. Flexible pipe
DE4230823C1 (en) * 1992-09-15 1993-08-26 Alcan Deutschland Gmbh, 3400 Goettingen, De
US5548093A (en) * 1993-08-20 1996-08-20 Toyoda Gosei Co., Ltd. Low noise hose
DE4429045A1 (en) * 1994-08-16 1996-02-22 Missel Gmbh & Co E insulating material
DE4429045B4 (en) * 1994-08-16 2005-11-24 E. Missel Gmbh insulation
EP0718539A2 (en) 1994-12-21 1996-06-26 Richard Norres Gas conveying element with soft walls to insulate from and attenuate noises propagating in main channels
DE4445795C1 (en) * 1994-12-21 1996-03-07 Norres Richard Gas feed component for inhibiting and dampening noise spreading in main channels
DE4445794C1 (en) * 1994-12-21 1996-01-25 Norres Richard Gas-duct inner tube externally joined to heavy metal formers
EP0780621A1 (en) 1995-12-20 1997-06-25 Richard Norres Pipe element used for decreasing and attenuating noise propagated by main pipes and having a sound absorber and/or a branch pipe
US5731557A (en) * 1995-12-20 1998-03-24 Richard Norres Fluid guiding element for blocking and damping noise propagating in main passages
DE19600730A1 (en) * 1996-01-11 1997-07-17 Juergen Dr Kaesser Dewatering pipe component
DE19635799B4 (en) * 1996-09-04 2008-11-20 Adam Opel Ag damping hose
DE19635799A1 (en) * 1996-09-04 1998-03-05 Opel Adam Ag Noise-damping hose, especially for air-suction system of internal combustion engine
DE10058479A1 (en) * 2000-11-24 2002-05-29 Mann & Hummel Filter Wide band damper for induction tract of internal combustion engine has resonance chamber adjoining induction tract and filled with absorption material separated from duct section by barrier layer on partitioning wall
DE10302049B4 (en) * 2003-01-21 2008-02-28 Daimler Ag Water drain pipe in a motor vehicle
DE10302049A1 (en) * 2003-01-21 2004-08-05 Daimlerchrysler Ag Water run off channels for a motor vehicle, especially a car, has a tubular foam body at the channel exit to reduce air noise
EP1870629A3 (en) * 2004-02-04 2008-06-11 Davlaras Apostolos Flexible air-duct with internal insulation of foamed polyethylene
DE102007015114A1 (en) 2007-03-29 2008-10-02 Meteor Gummiwerke K.H. Bädje GmbH & Co. KG A process for preparing a usable as a media line mounting module and mounting module
WO2008119437A2 (en) 2007-03-29 2008-10-09 Meteor Gummiwerke K.H. Bädje GmbH & Co. KG Method for producing an integrable module used as a duct for guiding substances, and integrable module

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