WO2006017398A3 - Method and apparatus for attenuating compressor noise - Google Patents

Method and apparatus for attenuating compressor noise Download PDF

Info

Publication number
WO2006017398A3
WO2006017398A3 PCT/US2005/027057 US2005027057W WO2006017398A3 WO 2006017398 A3 WO2006017398 A3 WO 2006017398A3 US 2005027057 W US2005027057 W US 2005027057W WO 2006017398 A3 WO2006017398 A3 WO 2006017398A3
Authority
WO
WIPO (PCT)
Prior art keywords
tubes
noise
chambers
flow path
attenuating
Prior art date
Application number
PCT/US2005/027057
Other languages
French (fr)
Other versions
WO2006017398A2 (en
Inventor
Douglas F Devries
Malcolm R Williams
Original Assignee
Pulmonetic Systems Inc
Douglas F Devries
Malcolm R Williams
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
Priority claimed from US10/912,747 external-priority patent/US7188621B2/en
Application filed by Pulmonetic Systems Inc, Douglas F Devries, Malcolm R Williams filed Critical Pulmonetic Systems Inc
Priority to EP05777464.8A priority Critical patent/EP1773455B1/en
Priority to AU2005271658A priority patent/AU2005271658B9/en
Priority to CA2574018A priority patent/CA2574018C/en
Priority to BRPI0514146A priority patent/BRPI0514146B1/en
Priority to JP2007524871A priority patent/JP4773443B2/en
Publication of WO2006017398A2 publication Critical patent/WO2006017398A2/en
Publication of WO2006017398A3 publication Critical patent/WO2006017398A3/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0057—Pumps therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0057—Pumps therefor
    • A61M16/0063—Compressors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/06—Silencing
    • F04C29/061—Silencers using overlapping frequencies, e.g. Helmholtz resonators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/06—Silencing
    • F04C29/065—Noise dampening volumes, e.g. muffler chambers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0057—Pumps therefor
    • A61M16/0066—Blowers or centrifugal pumps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0057—Pumps therefor
    • A61M16/0066—Blowers or centrifugal pumps
    • A61M16/0069—Blowers or centrifugal pumps the speed thereof being controlled by respiratory parameters, e.g. by inhalation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/42—Reducing noise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C18/126—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with radially from the rotor body extending elements, not necessarily co-operating with corresponding recesses in the other rotor, e.g. lobes, Roots type

Abstract

The invention comprises a method and apparatus for reducing the noise generated by compressors, including Roots-type blowers. The invention has particular use for reducing noise generated by compressors used in mechanical ventilators, though the advantages thereof may be realized in many different applications. One embodiment of the invention comprises a noise-attenuating gas flow path for a compressor contained in a portable ventilator housing. In one embodiment, the gas flow path comprises a plurality of chambers interconnected by flow tubes. The flow path is folded so as to fit into the limited space of a portable ventilator housing. The dimensions of the chambers and the flow tubes are selected so that an impedance mismatch is created between the chambers and the flow tubes. In one embodiment of the invention, the flow path comprises one or more perforated tubes located in one or more of the chambers. The perforated tube has a port through which gas is accepted and at least one exterior tube through which gas exits. Impedance mismatches are created between the inlet chamber and the exterior tubes and between the exterior tubes and the chamber in which the perforated tube is located, which are useful in attenuating noise. One embodiment of the invention comprises a noise attenuating mounting system for a compressor. The mount system comprises flexible mounts that cooperate to dampen vibrations generated by the compressor.
PCT/US2005/027057 2004-08-04 2005-07-29 Method and apparatus for attenuating compressor noise WO2006017398A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP05777464.8A EP1773455B1 (en) 2004-08-04 2005-07-29 Method and apparatus for attenuating compressor noise
AU2005271658A AU2005271658B9 (en) 2004-08-04 2005-07-29 Method and apparatus for attenuating compressor noise
CA2574018A CA2574018C (en) 2004-08-04 2005-07-29 Method and apparatus for attenuating compressor noise
BRPI0514146A BRPI0514146B1 (en) 2004-08-04 2005-07-29 noise attenuation system for a compressor
JP2007524871A JP4773443B2 (en) 2004-08-04 2005-07-29 Method and apparatus for attenuating compressor noise

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US10/912,747 2004-08-04
US10/912,747 US7188621B2 (en) 2003-08-04 2004-08-04 Portable ventilator system
US11/088,316 2005-03-23
US11/088,316 US7527053B2 (en) 2003-08-04 2005-03-23 Method and apparatus for attenuating compressor noise

Publications (2)

Publication Number Publication Date
WO2006017398A2 WO2006017398A2 (en) 2006-02-16
WO2006017398A3 true WO2006017398A3 (en) 2007-11-01

Family

ID=35839823

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/027057 WO2006017398A2 (en) 2004-08-04 2005-07-29 Method and apparatus for attenuating compressor noise

Country Status (7)

Country Link
US (1) US7527053B2 (en)
EP (2) EP1773455B1 (en)
JP (2) JP4773443B2 (en)
AU (1) AU2005271658B9 (en)
BR (1) BRPI0514146B1 (en)
CA (2) CA2765227A1 (en)
WO (1) WO2006017398A2 (en)

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CA2574018C (en) 2014-05-06
AU2005271658B2 (en) 2011-04-28
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EP1773455B1 (en) 2016-11-02
BRPI0514146B1 (en) 2016-12-27
US20050166921A1 (en) 2005-08-04
AU2005271658B9 (en) 2011-06-30
EP3153762A1 (en) 2017-04-12
CA2765227A1 (en) 2006-02-16
US7527053B2 (en) 2009-05-05
JP4773443B2 (en) 2011-09-14
WO2006017398A2 (en) 2006-02-16
EP1773455A4 (en) 2008-12-17
JP2011214576A (en) 2011-10-27
EP1773455A2 (en) 2007-04-18
JP2008509331A (en) 2008-03-27
CA2574018A1 (en) 2006-02-16

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