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CA2432094A1 - Double layer acoustic liner and a fluid pressurizing device and method utilizing same - Google Patents

Double layer acoustic liner and a fluid pressurizing device and method utilizing same Download PDF

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Publication number
CA2432094A1
CA2432094A1 CA002432094A CA2432094A CA2432094A1 CA 2432094 A1 CA2432094 A1 CA 2432094A1 CA 002432094 A CA002432094 A CA 002432094A CA 2432094 A CA2432094 A CA 2432094A CA 2432094 A1 CA2432094 A1 CA 2432094A1
Authority
CA
Canada
Prior art keywords
liner
series
openings
cells
resonators
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
CA002432094A
Other languages
French (fr)
Other versions
CA2432094C (en
Inventor
Zheji Liu
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.)
Dresser Rand Co
Original Assignee
Individual
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 US09/745,862 external-priority patent/US6550574B2/en
Application filed by Individual filed Critical Individual
Publication of CA2432094A1 publication Critical patent/CA2432094A1/en
Application granted granted Critical
Publication of CA2432094C publication Critical patent/CA2432094C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4213—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps suction ports
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/663—Sound attenuation
    • F04D29/665—Sound attenuation by means of resonance chambers or interference
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/172—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using resonance effects
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/50—Inlet or outlet
    • F05D2250/51—Inlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/50—Inlet or outlet
    • F05D2250/52—Outlet

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

This invention relates to a double layer acoustic liner (28) for attenuation noise and consisting of a plurality of cells (34) formed in a plate (32) in a manner to form an array of resonators, and a fluid processing device and method incorporating same.

Claims (35)

1. A noise attenuation assembly comprising a first one-piece, unitary, acoustic liner comprising a unitary plate, and a plurality of cells formed in the plate in a manner to form an array of resonators to attenuate acoustic energy; and a second one-piece, unitary, acoustic liner disposed in an abutting relationship to the first liner, the second liner comprising a unitary plate, and a plurality of cells formed in the plate in a manner to form an array of resonators to attenuate acoustic energy.
2. The assembly of claim 1 wherein the cells of the second liner are aligned with the cells of the first liner so that a series of resonators are formed in the lateral direction.
3. The assembly of claim 1 wherein the resonators are either Helmholtz resonators or quarter-wave resonators.
4. The assembly of claim 1 wherein the cells of each liner are in the form of a first series of openings extending from one surface of the plate, and a second series of openings extending from the opposite surface of the plate
5. The assembly of claim 4 where a plurality of openings of the second series of openings extend to one of each of the first series of openings.
6. The assembly of claim 4 wherein each opening of the first series of openings is larger than each opening of the second series of openings.
7. The assembly of claim 4 wherein the surface of the first liner through which the first series of opening extends abuts the surface of the second liner through which the second series of cells extend.
8. The assembly of claim 4 wherein the first and second series of openings are uniformly dispersed in their respective plates.
9. The assembly of claim 4 wherein the number and size of the openings are constructed and arranged to tune their corresponding liner to attenuate the dominant noise component of acoustic energy associated with the assembly.
10. A fluid pressurizing device comprising a casing defining an inlet, and an outlet;
an impeller mounted in the casing and having a plurality of flow passages extending therethrough, the impeller adapted to rotate to flow fluid from the inlet, through the passages, and to the outlet for discharge from the casing; a one-piece, unitary, acoustic liner disposed in the casing, the liner comprising a unitary plate, and a plurality of cells formed in the plate in a manner to form an array of resonators to attenuate acoustic energy generated by the device; and an additional one-piece, unitary, acoustic liner disposed in the casing; the additional liner comprising a unitary plate, and a plurality of cells formed in the plate in a manner to form an array of resonators to attenuate acoustic energy generated by the device.
11. The device of claim 10 wherein the resonators are either Helmholtz resonators or quarter-wave resonators.
12. The device of claim 10 wherein the liners are disposed in an abutting relationship in the casing.
13. The device of claim 12 wherein the cells of the additional liner are aligned with the cells of the first-mentioned liner.
14. The device of claim 10 wherein the cells of each liner are in the form of a first series of openings extending from one surface of the plate, and a second series of openings extending from the opposite surface of the plate.
15. The device of claim 14 wherein a plurality of openings of each second series of openings extend to one of each of the corresponding first series of openings.
16. The device of claim 14 wherein each opening of the first series of openings is larger than each opening of the second series of openings.
17. The device of claim 14 wherein the surface of the first-mentioned liner through which the first series of opening extends abuts the surface of the additional liner through which the second series of cells extend.
18. The device of claim 14 wherein the first and second series of openings of each liner are uniformly dispersed in their corresponding plate.
19. The device of claim 14 wherein the number and size of the openings of each liner are constructed and arranged to attenuate the dominant noise component of the acoustic energy.
20. The device of claim 10 wherein the first-mentioned liner is attached to a wall defining a portion of the chamber and the additional liner abuts the first-mentioned liner.
21. The device of claim 20 further comprising at least one-piece, unitary, acoustic liner disposed in the casing and attached to a wall defining a portion of the chamber and extending opposite the first-mentioned wall, the last-mentioned liner comprising a unitary plate, and a plurality of cells formed in the plate in a manner to form an array of resonators to attenuate acoustic energy generated by the device.
22. The device of claim 10 wherein the casing further comprises a diffuser area in fluid flow communication with the impeller passages and the outlet, and wherein the first-mentioned liner is attached to a wall defining a portion of the diffuser area, and the additional liner abuts the first-mentioned liner.
23. The device of claim 10 further comprising an inlet conduit connected to the inlet for supplying fluid to the inlet, and further comprising a liner attached to the inlet conduit and comprising a unitary curved shell, and a plurality of cells formed in the shell in a manner to form an array of resonators to attenuate additional acoustic energy generated by the device.
24. The device of claim 23 further comprising a liner extending around the liner attached to the inlet conduit and comprising a unitary curved shell, and a plurality of cells formed in the shell in a manner to form an array of resonators to attenuate additional acoustic energy generated by the device.
25. A fluid pressurizing device comprising a casing defining an inlet and an outlet; an impeller mounted in the chamber and adapted to rotate to flow fluid from the inlet and to the outlet for discharge from the casing; a conduit connected to the inlet for supplying fluid to the inlet; a one-piece, unitary, acoustic liner attached to the conduit, the liner comprising a curved shell, and a plurality of cells formed in the shell in a manner to form an array of resonators to attenuate acoustic energy generated by the device; and an additional one-piece, unitary, acoustic liner extending around the first-mentioned conduit in an abutting relationship thereto, the additional comprising a curved shell, and a plurality of cells formed in the shell in a manner to form an array of resonators to attenuate acoustic energy generated by the device.
26. The device of claim 25 wherein the cells of the additional liner are aligned with the cells of the first-mentioned liner.
27. The device of claim 25 wherein the cells of each liner are the form of a first series of openings extending from one surface of the plate, and a second series of openings extending from the opposite surface of the plate.
28. The device of claim 27 wherein a plurality of openings of the second series of openings extend to one of each of the first series of openings of each liner.
29. The device of claim 27 wherein each opening of the first series of openings is larger than each opening of the second series of openings of each liner.
30. The device of claim 27 wherein the surface of the first-mentioned liner through which the first series of opening extends abuts the surface of the additional liner through which the second series of cells extend.
31. The device of claim 27 wherein the first and second series of openings of liner are uniformly dispersed in their corresponding plate.
32. The device of claim 27 wherein the number and size of the openings are constructed and arranged to attenuate the dominant noise component of the acoustic energy.
33. The device of claim 25 wherein the first-mentioned liner is attached to the inner wall of the conduit and the second-mentioned liner abuts the first-mentioned liner.
34. A noise attenuation method for a fluid pressurizing device in which an impeller rotates to flow fluid through a casing; comprising a one-piece, unitary, acoustic liner disposed in the casing and having a plurality of cells forming an array of resonators;
providing an additional a one-piece, unitary, acoustic liner disposed in the casing and having a plurality of cells forming an array of resonators, and tuning the resonators to the impeller blade passing frequency to increase the noise reduction.
35. The method of claim 34 wherein the step of tuning comprises varying the number, size and/or volume of the cells.
CA2432094A 2000-12-21 2001-11-08 Double layer acoustic liner and a fluid pressurizing device and method utilizing same Expired - Lifetime CA2432094C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US09/745,862 2000-12-21
US09/745,862 US6550574B2 (en) 2000-12-21 2000-12-21 Acoustic liner and a fluid pressurizing device and method utilizing same
US09/929,193 US6601672B2 (en) 2000-12-21 2001-08-14 Double layer acoustic liner and a fluid pressurizing device and method utilizing same
US09/929,193 2001-08-14
PCT/US2001/047515 WO2002052110A1 (en) 2000-12-21 2001-11-08 Double layer acoustic liner and a fluid pressurizing device and method utilizing same

Publications (2)

Publication Number Publication Date
CA2432094A1 true CA2432094A1 (en) 2002-07-04
CA2432094C CA2432094C (en) 2010-07-27

Family

ID=27114526

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2432094A Expired - Lifetime CA2432094C (en) 2000-12-21 2001-11-08 Double layer acoustic liner and a fluid pressurizing device and method utilizing same

Country Status (6)

Country Link
EP (1) EP1356169B1 (en)
JP (1) JP4088155B2 (en)
CN (1) CN1318710C (en)
CA (1) CA2432094C (en)
DE (2) DE60120769T2 (en)
WO (1) WO2002052110A1 (en)

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US8304181B2 (en) 2004-10-07 2012-11-06 Transmedics, Inc. Method for ex-vivo organ care and for using lactate as an indication of donor organ status
US9301519B2 (en) 2004-10-07 2016-04-05 Transmedics, Inc. Systems and methods for ex-vivo organ care
US12010987B2 (en) 2004-10-07 2024-06-18 Transmedics, Inc. Systems and methods for ex-vivo organ care and for using lactate as an indication of donor organ status
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US9078428B2 (en) 2005-06-28 2015-07-14 Transmedics, Inc. Systems, methods, compositions and solutions for perfusing an organ
CA2649703C (en) 2006-04-19 2019-01-08 Transmedics, Inc. Systems and methods for ex vivo organ care
US9457179B2 (en) 2007-03-20 2016-10-04 Transmedics, Inc. Systems for monitoring and applying electrical currents in an organ perfusion system
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Also Published As

Publication number Publication date
JP4088155B2 (en) 2008-05-21
CN1489662A (en) 2004-04-14
JP2004525290A (en) 2004-08-19
CN1318710C (en) 2007-05-30
DE60120769T2 (en) 2007-05-24
EP1356169A4 (en) 2004-10-13
WO2002052110A1 (en) 2002-07-04
EP1356169A1 (en) 2003-10-29
EP1356169B1 (en) 2006-06-14
CA2432094C (en) 2010-07-27
DE60120769D1 (en) 2006-07-27
DE01996188T1 (en) 2005-07-14

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