US20020069922A1 - Fluid stream pulse damper - Google Patents
Fluid stream pulse damper Download PDFInfo
- Publication number
- US20020069922A1 US20020069922A1 US09/731,634 US73163400A US2002069922A1 US 20020069922 A1 US20020069922 A1 US 20020069922A1 US 73163400 A US73163400 A US 73163400A US 2002069922 A1 US2002069922 A1 US 2002069922A1
- Authority
- US
- United States
- Prior art keywords
- fluid
- expansion chamber
- damper
- path
- conduit
- 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
Links
Images
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
- F16L55/033—Noise absorbers
- F16L55/0332—Noise absorbers by inserting a body of compressible material in the pipe
-
- 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
- F16L55/02709—Throttle passages in the form of perforated plates
- F16L55/02718—Throttle passages in the form of perforated plates placed transversely
Definitions
- the present invention relates to fluid stream control devices, and more particularly to a damping device for attenuating pulses in a gaseous fluid stream.
- Large industrial engine exhaust streams include strong pulses corresponding to combustion cylinder cycles. Some engines demonstrate strong pulses in the inlet air stream as well. Other industrial processes including highly pressurized gas streams from reciprocating compressors also may exhibit pulses in the fluid stream. Such fluid streams can be objectionably noising.
- Mufflers are known for reducing sound in engine exhaust streams.
- Known engine exhaust mufflers include expansion chambers and perforated baffles and tubes for reducing noise. It is known to use exhaust stream operated valves for controlling flow through an engine exhaust muffler.
- Dissipative mufflers are known for reducing sound in gaseous fluid exhaust streams.
- U.S. Pat. No. 5,489,753 teaches one such dissipative muffler in which an expansion chamber includes perforated walls through which the exhaust air stream can escape, and an outlet passage having an auto adjusting baffle assemble. Normally, such mufflers are used near the end of an exhaust stream, just preceding release to ambient. Some such mufflers are of relatively complex construction.
- the present invention is directed to overcoming one or more of the problems as set forth above.
- a fluid stream pulse damper comprises a fluid conduit defining a fluid path and a fluid flow direction in the fluid path.
- the conduit has an inlet end and an outlet end for all fluid flowing along the fluid path.
- a damper body is disposed in the conduit intersecting the fluid path.
- An energy absorber is attached to the damper body.
- a method for damping pulse energy of a fluid stream comprises providing a fluid flow path and a body in the path; conducting a fluid along the fluid flow path; intercepting with the body at least a portion of the fluid flowing along the path; translating pulse energy in the fluid to mechanical energy in the body; and conducting away from the body all of the fluid conducted toward the body.
- a gaseous fluid circuit comprises a source of gaseous fluid and a gaseous fluid destination.
- a fluid conduit defines a fluid path from the source to the destination.
- the conduit has an inlet end and an outlet end for all fluid flowing along the fluid path.
- a damper body is disposed in the conduit, intersecting the fluid path.
- An energy absorber is attached to the damper body.
- FIG. 1 is a schematic representation of a gaseous fluid circuit having a fluid stream pulse damper of the present invention
- FIG. 2 is a partial schematic representation of a gaseous fluid circuit having a second embodiment of the fluid stream pulse damper of the present invention.
- FIG. 3 is a partial schematic representation of a gaseous fluid circuit having a third embodiment of the fluid stream pulse damper of the present invention.
- Pulse damper 12 is disposed between a source 14 of gaseous fluid and a gaseous fluid destination 16 . Pulse damper 12 is provided for acting upon a fluid flowing from source 14 to destination 16 , the fluid flowing along a fluid path in a fluid flow direction.
- the fluid path and fluid flow direction are each indicated in the drawings by arrows designated with the numeral 18 .
- Source 14 and destination 16 may be of many different embodiments.
- source 14 may be an internal combustion engine, and the fluid flowing along fluid path 18 may be exhaust gas from an exhaust manifold of the internal combustion engine.
- destination 16 may be subsequent exhaust gas processing, which may include an intake manifold of the internal combustion engine if pulse damper 12 is provided for an internal combustion engine having exhaust gas re-circulation.
- source 14 and destination 16 may also be stations in an industrial process having a fluid stream in which an undesirably high pulse is present, such as a high pressure gas stream from a reciprocating compressor.
- Pulse damper 12 includes a fluid conduit 20 defining fluid path and flow direction 18 from source 14 to destination 16 .
- a damper body 22 is disposed in fluid conduit 20 , intersecting fluid path 18 .
- An energy absorber 24 or a plurality thereof, are attached to damper body 22 , generally in a manner to resist forces applied to damper 22 by a fluid flowing along fluid path and flow direction 18 .
- Energy absorbers 24 may be springs, compressed fluid cylinders, elastomeric mountings, or the like.
- damper body 22 includes a solid plate 30 disposed in fluid conduit 20 at an angle to fluid path and flow direction 18 .
- Solid plate 30 is connected to fluid conduit 20 at a hinge 32 , which allows solid plate 30 to be deflected by fluid flowing along fluid path and flow direction 18 .
- One or more energy absorbers 24 are disposed between solid plate 30 and fluid conduit 20 , in a manner to resist deflection of solid plate 30 caused by fluid flowing along fluid path and flow direction 18 . At least some of the fluid flowing along fluid path and flow direction 18 impacts solid plate 30 as the fluid moves from an inlet end 34 to an outlet end 36 of fluid conduit 20 .
- damper body 22 includes a perforated plate 40 disposed in fluid conduit 20 , generally transverse to the direction of fluid path and flow direction 18 .
- Perforated plate 42 extends outwardly of fluid conduit 20 , and is connected by a plurality of energy absorbers 24 to an external frame or mounting structure 42 .
- Perforated plate 40 includes a plurality of openings or holes 44 therein, allowing fluid flowing along fluid path and flow direction 18 to pass through perforated plate 40 , as the fluid passes from inlet end 34 to outlet end 36 of fluid conduit 20 .
- Expansion chamber 50 includes a plurality of outer walls, and in the embodiment shown includes four outer walls 52 , 54 , 56 and 58 , defining an enclosed space 60 .
- Expansion chamber 50 has an inlet opening 62 and an outlet opening 64 in fluid flow communication with enclosed space 60 .
- Inlet end 34 of fluid conduit 20 is disposed in inlet opening 62
- outlet end 36 of fluid conduit 20 is disposed in outlet opening 64 .
- inlet opening 62 and outlet opening 64 are both provided in the same outer wall 52 .
- Damper body 22 is provided within enclosed space 60 , on outer wall 56 , directly opposite outer wall 52 .
- Damper body 22 is a solid deflection plate 66 , which substantially fills a cross section of enclosed space 60 , and is secured by a plurality of energy absorbers 24 to outer wall 56 , or to a frame or support, not shown.
- a partition 68 extends within enclosed space 60 from outer wall 52 , between inlet opening 62 and outlet opening 64 .
- pulse damper 12 is provided in gaseous fluid circuit 10 , and receives a gaseous fluid stream from source 14 , providing the fluid stream to destination 16 . More specifically, inlet end 34 of fluid conduit 20 is in fluid flow communication with source 14 , and provides a fluid path and flow direction 18 for fluid received from source 14 . Outlet end 36 of fluid conduit 20 is in fluid flow communication with destination 16 . Along fluid path and flow direction 18 , between inlet end 34 and outlet end 36 , at least some of the fluid impacts damper body 22 , with at least some of the pulse energy of the fluid being transferred to energy absorber or absorbers 24 .
- solid plate 30 In use of the embodiment shown in FIG. 1, solid plate 30 impedes flow as fluid flowing along fluid path and flow direction 18 encounters solid plate 30 . Energy in the fluid stream forces solid plate 30 rearward, pivoting solid plate 30 at hinge 32 . Movement of solid plate 30 is resisted by energy absorber or absorbers 24 , which allow limited movement of solid plate 30 . If the fluid stream contains significant pulse energy, solid plate 30 may pulsate in response to the energy pulses. Much of the pulse energy in the fluid stream is translated to mechanical energy in moving solid plate 30 .
- perforated plate 40 In use of the embodiment shown in FIG. 2, as fluid flowing along fluid path and flow direction 18 encounters perforated plate 40 , perforated plate 40 is caused to vibrate. Vibrations of perforated plate 40 are transferred to energy absorbers 24 . Again, pulse energy in the fluid stream is damped.
- energy absorbers 24 should be provided of sufficient resistive force, in sufficient numbers and at appropriate placements to prevent damper body 22 from “bottoming out” in any but the most extreme operating conditions.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
- Fluid-Pressure Circuits (AREA)
- Surgical Instruments (AREA)
- Exhaust Silencers (AREA)
- Compressor (AREA)
Abstract
A fluid stream pulse damper having a fluid conduit defining a fluid path and a fluid flow direction. The conduit has an inlet end and an outlet end. A damper body in the conduit intersects the fluid path. An energy absorber attached to the damper body operates in resistance to fluid flowing in the conduit.
Description
- The present invention relates to fluid stream control devices, and more particularly to a damping device for attenuating pulses in a gaseous fluid stream.
- Gaseous fluid streams, from industrial processes or the like, can exhibit wide swings or variations in characteristics such as velocity and pressure, often exhibiting significant pulses. Large industrial engine exhaust streams include strong pulses corresponding to combustion cylinder cycles. Some engines demonstrate strong pulses in the inlet air stream as well. Other industrial processes including highly pressurized gas streams from reciprocating compressors also may exhibit pulses in the fluid stream. Such fluid streams can be objectionably noising.
- Mufflers are known for reducing sound in engine exhaust streams. Known engine exhaust mufflers include expansion chambers and perforated baffles and tubes for reducing noise. It is known to use exhaust stream operated valves for controlling flow through an engine exhaust muffler.
- Dissipative mufflers are known for reducing sound in gaseous fluid exhaust streams. U.S. Pat. No. 5,489,753 teaches one such dissipative muffler in which an expansion chamber includes perforated walls through which the exhaust air stream can escape, and an outlet passage having an auto adjusting baffle assemble. Normally, such mufflers are used near the end of an exhaust stream, just preceding release to ambient. Some such mufflers are of relatively complex construction.
- It is further known to compensate for pulses in a fluid stream by passing the fluid stream through a multi-chambered apparatus in which the chambers are separated by a bladder or other flexible membrane. One of the chambers is charged with a compressible fluid. As the process fluid stream passes through the other of the chambers, fluctuations in the pressure of the process fluid stream are evened out by compression of the pre-charged fluid.
- The present invention is directed to overcoming one or more of the problems as set forth above.
- In one aspect of the invention, a fluid stream pulse damper comprises a fluid conduit defining a fluid path and a fluid flow direction in the fluid path. The conduit has an inlet end and an outlet end for all fluid flowing along the fluid path. A damper body is disposed in the conduit intersecting the fluid path. An energy absorber is attached to the damper body.
- In another aspect of the invention, a method for damping pulse energy of a fluid stream comprises providing a fluid flow path and a body in the path; conducting a fluid along the fluid flow path; intercepting with the body at least a portion of the fluid flowing along the path; translating pulse energy in the fluid to mechanical energy in the body; and conducting away from the body all of the fluid conducted toward the body.
- In yet another aspect of the invention, a gaseous fluid circuit comprises a source of gaseous fluid and a gaseous fluid destination. A fluid conduit defines a fluid path from the source to the destination. The conduit has an inlet end and an outlet end for all fluid flowing along the fluid path. A damper body is disposed in the conduit, intersecting the fluid path. An energy absorber is attached to the damper body.
- FIG. 1 is a schematic representation of a gaseous fluid circuit having a fluid stream pulse damper of the present invention;
- FIG. 2 is a partial schematic representation of a gaseous fluid circuit having a second embodiment of the fluid stream pulse damper of the present invention; and
- FIG. 3 is a partial schematic representation of a gaseous fluid circuit having a third embodiment of the fluid stream pulse damper of the present invention.
- Referring now to the drawings, and particularly to FIG. 1, there is shown a
gaseous fluid circuit 10 having a fluidstream pulse damper 12 of the present invention.Pulse damper 12 is disposed between asource 14 of gaseous fluid and agaseous fluid destination 16.Pulse damper 12 is provided for acting upon a fluid flowing fromsource 14 todestination 16, the fluid flowing along a fluid path in a fluid flow direction. The fluid path and fluid flow direction are each indicated in the drawings by arrows designated with thenumeral 18. -
Source 14 anddestination 16 may be of many different embodiments. For example,source 14 may be an internal combustion engine, and the fluid flowing alongfluid path 18 may be exhaust gas from an exhaust manifold of the internal combustion engine. So also,destination 16 may be subsequent exhaust gas processing, which may include an intake manifold of the internal combustion engine ifpulse damper 12 is provided for an internal combustion engine having exhaust gas re-circulation. Those skilled in the art will readily understand thatsource 14 anddestination 16 may also be stations in an industrial process having a fluid stream in which an undesirably high pulse is present, such as a high pressure gas stream from a reciprocating compressor. -
Pulse damper 12 includes afluid conduit 20 defining fluid path andflow direction 18 fromsource 14 todestination 16. Adamper body 22 is disposed influid conduit 20, intersectingfluid path 18. An energy absorber 24, or a plurality thereof, are attached todamper body 22, generally in a manner to resist forces applied todamper 22 by a fluid flowing along fluid path andflow direction 18.Energy absorbers 24 may be springs, compressed fluid cylinders, elastomeric mountings, or the like. - In a first embodiment of
pulse damper 12, shown in FIG. 1,damper body 22 includes asolid plate 30 disposed influid conduit 20 at an angle to fluid path andflow direction 18.Solid plate 30 is connected tofluid conduit 20 at ahinge 32, which allowssolid plate 30 to be deflected by fluid flowing along fluid path andflow direction 18. One ormore energy absorbers 24 are disposed betweensolid plate 30 andfluid conduit 20, in a manner to resist deflection ofsolid plate 30 caused by fluid flowing along fluid path andflow direction 18. At least some of the fluid flowing along fluid path andflow direction 18 impactssolid plate 30 as the fluid moves from aninlet end 34 to anoutlet end 36 offluid conduit 20. - In a second embodiment of
pulse damper 12, shown in FIG. 2,damper body 22 includes aperforated plate 40 disposed influid conduit 20, generally transverse to the direction of fluid path andflow direction 18.Perforated plate 42 extends outwardly offluid conduit 20, and is connected by a plurality of energy absorbers 24 to an external frame ormounting structure 42.Perforated plate 40 includes a plurality of openings orholes 44 therein, allowing fluid flowing along fluid path andflow direction 18 to pass throughperforated plate 40, as the fluid passes frominlet end 34 tooutlet end 36 offluid conduit 20. - In a third embodiment of
pulse damper 12, shown in FIG. 3, anexpansion chamber 50 is provided.Expansion chamber 50 includes a plurality of outer walls, and in the embodiment shown includes fourouter walls space 60.Expansion chamber 50 has aninlet opening 62 and an outlet opening 64 in fluid flow communication with enclosedspace 60. Inletend 34 offluid conduit 20 is disposed ininlet opening 62, andoutlet end 36 offluid conduit 20 is disposed inoutlet opening 64. In the embodiment shown, inlet opening 62 andoutlet opening 64 are both provided in the sameouter wall 52.Damper body 22 is provided within enclosedspace 60, onouter wall 56, directly oppositeouter wall 52.Damper body 22 is asolid deflection plate 66, which substantially fills a cross section of enclosedspace 60, and is secured by a plurality of energy absorbers 24 toouter wall 56, or to a frame or support, not shown. To further direct flow within enclosedspace 60, apartition 68 extends within enclosedspace 60 fromouter wall 52, between inlet opening 62 and outlet opening 64. - In use,
pulse damper 12 is provided ingaseous fluid circuit 10, and receives a gaseous fluid stream fromsource 14, providing the fluid stream todestination 16. More specifically, inlet end 34 offluid conduit 20 is in fluid flow communication withsource 14, and provides a fluid path and flowdirection 18 for fluid received fromsource 14.Outlet end 36 offluid conduit 20 is in fluid flow communication withdestination 16. Along fluid path and flowdirection 18, betweeninlet end 34 andoutlet end 36, at least some of the fluidimpacts damper body 22, with at least some of the pulse energy of the fluid being transferred to energy absorber orabsorbers 24. - In use of the embodiment shown in FIG. 1,
solid plate 30 impedes flow as fluid flowing along fluid path and flowdirection 18 encounterssolid plate 30. Energy in the fluid stream forcessolid plate 30 rearward, pivotingsolid plate 30 athinge 32. Movement ofsolid plate 30 is resisted by energy absorber orabsorbers 24, which allow limited movement ofsolid plate 30. If the fluid stream contains significant pulse energy,solid plate 30 may pulsate in response to the energy pulses. Much of the pulse energy in the fluid stream is translated to mechanical energy in movingsolid plate 30. - In use of the embodiment shown in FIG. 2, as fluid flowing along fluid path and flow
direction 18 encounters perforatedplate 40, perforatedplate 40 is caused to vibrate. Vibrations ofperforated plate 40 are transferred toenergy absorbers 24. Again, pulse energy in the fluid stream is damped. - In use of the embodiment shown in FIG. 3, as fluid flowing along fluid path and flow
direction 18 entersexpansion chamber 50 viainlet end 34, it is directed towarddeflection plate 66, and is restricted from flowing directly to outlet end 36 bypartition 68. The fluid streamimpacts deflection plate 66, causing the plate to vibrate. Again,energy absorbers 24 are used to remove pulse energy from the fluid stream. After impactingdeflection plate 66, the fluid stream rebounds fromdeflection plate 66 towardoutlet end 36. - In any of the aforedescribed embodiments of
pulse damper 12,energy absorbers 24 should be provided of sufficient resistive force, in sufficient numbers and at appropriate placements to preventdamper body 22 from “bottoming out” in any but the most extreme operating conditions. - Other aspects, objects and advantages of this invention can be obtained from a study of the drawings, the disclosure and the appended claims.
Claims (26)
1. A fluid stream pulse damper, comprising;
a fluid conduit defining a fluid path and a fluid flow direction in said fluid path, said conduit having an inlet end and an outlet end for all fluid flowing along said fluid path;
a damper body disposed in said conduit, said damper body intersecting said fluid path; and
an energy absorber attached to said damper body, and operating in resistance to fluid flowing in said fluid flow direction.
2. The damper of claim 1 , said damper body being a perforated plate extending across said conduit.
3. The damper of claim 2 , said perforated plate disposed substantially transverse to said fluid flow direction.
4. The damper of claim 1 , said conduit including an expansion chamber and an inlet and an outlet for said expansion chamber, said damper body disposed in said expansion chamber opposite said expansion chamber inlet.
5. The damper of claim 4 , said expansion chamber outlet being opposite said damper body in said expansion chamber.
6. The damper of claim 4 , said damper body being a solid plate.
7. The damper of claim 6 , said expansion chamber outlet being opposite said damper body in said expansion chamber.
8. The damper of claim 7 , including a partition in said chamber between said expansion chamber inlet and said expansion chamber outlet.
9. The damper of claim 1 , said damper body extending only partially across said fluid flow path.
10. A method for damping pulse energy of a fluid stream, comprising;
providing a fluid flow path and a body in said path;
providing an energy absorber for said body;
conducting a fluid along said fluid flow path;
intercepting with said body at least a portion of the fluid flowing along said path;
translating pulse energy in said fluid to mechanical energy in said body; and
conducting away from said body all of the fluid conducted toward said body.
11. The method of claim 10 , wherein said step of intercepting comprises intercepting only a portion of the fluid flowing along said path.
12. The method of claim 10 , wherein said step of intercepting comprises intercepting substantially all of the fluid flowing along said path.
13. The method of claim 12 , including providing a plurality of openings in said plate, and directing substantially all of the fluid flowing along said path to flow through said plurality of openings.
14. The method of claim 10 , including providing a plurality of openings in said plate, and directing substantially all of the fluid flowing along said path to flow through said plurality of openings.
15. The method of claim 10 , including providing an expansion chamber in said fluid flow path and an inlet and an outlet for said expansion chamber, mounting said body in said expansion chamber, and directing substantially all of the fluid in said fluid flow path against said body.
16. A gaseous fluid circuit, comprising;
a source of gaseous fluid;
a gaseous fluid destination;
a fluid conduit defining a fluid path from said source to said destination, and having a fluid flow direction in said fluid path, said conduit having an inlet end and an outlet end for all fluid flowing along said fluid path;
a damper body disposed in said conduit, said damper body intersecting said fluid path; and
an energy absorber attached to said damper body, and operating in resistance to fluid flowing in said fluid flow direction.
17. The gaseous fluid circuit of claim 16 , said source being an internal combustion engine.
18. The gaseous fluid circuit of claim 16 , said destination being an internal combustion engine.
19. The gaseous fluid circuit of claim 16 , said damper body being a perforated plate extending across said conduit.
20. The gaseous fluid circuit of claim 19 , said perforated plate disposed substantially transverse to said fluid flow direction.
21. The gaseous fluid circuit of claim 16 , said conduit including an expansion chamber and an inlet and an outlet for said expansion chamber, said damper body disposed in said expansion chamber opposite said expansion chamber inlet.
22. The gaseous fluid circuit of claim 21 , said expansion chamber outlet being opposite said damper body in said expansion chamber.
23. The gaseous fluid circuit of claim 21 , said damper body being a solid plate.
24. The gaseous fluid circuit of claim 23 , said expansion chamber outlet being opposite said damper body in said expansion chamber.
25. The gaseous fluid circuit of claim 24 , including a partition in said chamber between said expansion chamber inlet and said expansion chamber outlet.
26. The gaseous fluid circuit of claim 16 , said damper body extending only partially across said fluid flow path.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/731,634 US6390132B1 (en) | 2000-12-07 | 2000-12-07 | Fluid stream pulse damper |
DE10196315T DE10196315T5 (en) | 2000-12-07 | 2001-10-31 | Fluid flow pulse damper |
PCT/US2001/046069 WO2002046585A2 (en) | 2000-12-07 | 2001-10-31 | Fluid stream pulse damper |
JP2002548290A JP2004515682A (en) | 2000-12-07 | 2001-10-31 | Fluid stream pulse damper |
AU2002228740A AU2002228740A1 (en) | 2000-12-07 | 2001-10-31 | Fluid stream pulse damper |
GB0220255A GB2381044A (en) | 2000-12-07 | 2001-10-31 | Fluid stream pulse damper |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/731,634 US6390132B1 (en) | 2000-12-07 | 2000-12-07 | Fluid stream pulse damper |
Publications (2)
Publication Number | Publication Date |
---|---|
US6390132B1 US6390132B1 (en) | 2002-05-21 |
US20020069922A1 true US20020069922A1 (en) | 2002-06-13 |
Family
ID=24940344
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/731,634 Expired - Fee Related US6390132B1 (en) | 2000-12-07 | 2000-12-07 | Fluid stream pulse damper |
Country Status (6)
Country | Link |
---|---|
US (1) | US6390132B1 (en) |
JP (1) | JP2004515682A (en) |
AU (1) | AU2002228740A1 (en) |
DE (1) | DE10196315T5 (en) |
GB (1) | GB2381044A (en) |
WO (1) | WO2002046585A2 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150019022A1 (en) * | 2013-07-12 | 2015-01-15 | John C. Karamanos | Fluid control measuring device |
US10030882B2 (en) | 2013-07-12 | 2018-07-24 | Best Technologies, Inc. | Low flow fluid controller apparatus and system |
US10088821B2 (en) | 2013-07-12 | 2018-10-02 | Best Technologies, Inc. | Self balancing air fixture |
US10175669B2 (en) | 2013-07-12 | 2019-01-08 | Best Technologies, Inc. | Fluid control measuring and controlling device |
US11429121B2 (en) | 2013-07-12 | 2022-08-30 | Best Technologies, Inc. | Fluid flow device with sparse data surface-fit-based remote calibration system and method |
US11815923B2 (en) | 2013-07-12 | 2023-11-14 | Best Technologies, Inc. | Fluid flow device with discrete point calibration flow rate-based remote calibration system and method |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100390492B1 (en) * | 2000-07-13 | 2003-07-04 | 엘지전자 주식회사 | Apparatus for reducing noise of suction muffler in compressor |
JP4581354B2 (en) * | 2003-08-26 | 2010-11-17 | パナソニック株式会社 | Hermetic compressor |
JP4641387B2 (en) | 2004-06-01 | 2011-03-02 | 日産自動車株式会社 | Fluid coupling |
DE102007046256A1 (en) * | 2007-09-26 | 2009-04-02 | Continental Automotive Gmbh | Acoustically optimized fluid line |
US20090229913A1 (en) * | 2008-02-08 | 2009-09-17 | Waldron's Antique Exhaust | Dual Mode Exhaust Muffler |
DE102008015016B3 (en) * | 2008-03-19 | 2009-08-27 | Audi Ag | Silencer arrangement for exhaust system of motor vehicle, has silencer housing divided into two chambers, where one chamber is formed as Helmholtz resonator that amplifies frequency portion of sound passing through separating wall |
US8591208B2 (en) * | 2009-06-24 | 2013-11-26 | Southwest Research Institute | Multi-frequency pulsation absorber at cylinder valve cap |
US8307855B2 (en) * | 2009-07-07 | 2012-11-13 | King Saud University | Fluid pressure spike suppression device |
JP5597386B2 (en) * | 2009-12-02 | 2014-10-01 | 株式会社Nttファシリティーズ | Blowing head and gas fire extinguishing system |
US7896126B1 (en) * | 2009-12-18 | 2011-03-01 | Raytheon Company | Methods and apparatus for sound suppression |
CN108194750B (en) * | 2018-01-02 | 2022-02-22 | 美的集团股份有限公司 | Water flow pressure pulsation attenuation device and water household electrical appliance thereof |
US11149602B2 (en) | 2018-05-22 | 2021-10-19 | Faurecia Emissions Control Technologies, Usa, Llc | Passive flap valve for vehicle exhaust system |
Family Cites Families (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US585084A (en) | 1897-06-22 | Safety-valve | ||
US947431A (en) | 1908-12-16 | 1910-01-25 | Pierre Ajasson De Grandsagne | Silencer for explosive-engines. |
US1013183A (en) | 1910-10-04 | 1912-01-02 | Andrew A Kramer | Outdoor toilet. |
US1163128A (en) | 1915-08-13 | 1915-12-07 | Paul E Brauer | Muffler. |
US1829737A (en) | 1929-01-22 | 1931-11-03 | John J Compo | Muffler |
US1859400A (en) | 1930-09-25 | 1932-05-24 | Francis E Kersey | Muffler |
US2072372A (en) | 1934-02-23 | 1937-03-02 | Riethmiller Ruth | Exhaust system for automotive engines |
US2787288A (en) * | 1953-09-02 | 1957-04-02 | Buensod Stacey Inc | Flow control devices |
US3153579A (en) | 1961-05-22 | 1964-10-20 | Levey Maurice | Exhaust gas suppressor for motor vehicles |
US3154174A (en) | 1962-11-30 | 1964-10-27 | Alvin S Haining | Dual purpose muffler with valved by-pass means |
US3338265A (en) * | 1964-09-08 | 1967-08-29 | Barber Colman Co | Regulator for constant volumetric rate of gas flow |
US3526239A (en) * | 1964-11-25 | 1970-09-01 | Robertshaw Controls Co | Oxygen diluter system |
US3391756A (en) * | 1967-09-25 | 1968-07-09 | Svenska Flaektfabriken Ab | Damper for regulating the flow of a gaseous medium |
US3620330A (en) | 1969-04-14 | 1971-11-16 | Oldberg Mfg Co | Muffler construction and method of selectively modifying its sound-attenuating characteristics |
US3703937A (en) | 1971-05-21 | 1972-11-28 | William L Tenney | Multiple rpm range tuned exhaust pipe and silencer for two-cycle engine |
US3857413A (en) * | 1971-11-03 | 1974-12-31 | Greer Hydraulics Inc | Pressure pulse dampener device |
US3722854A (en) | 1971-12-01 | 1973-03-27 | Grove Valve & Regulator Co | Valve with perforated ribbon silencing element |
JPS5535615B2 (en) * | 1974-04-23 | 1980-09-16 | ||
JPS5412099Y2 (en) | 1974-11-12 | 1979-05-29 | ||
SE409223C (en) | 1977-01-21 | 1980-10-02 | Atlas Copco Ab | VALVE DEVICE FOR DUMPING THE WASTE SOIL FROM A PRESSURE-DRIVE ENGINE |
US4152786A (en) * | 1977-12-12 | 1979-05-08 | Andros Incorporated | Compensator for implanted blood pump |
US4163461A (en) * | 1978-01-23 | 1979-08-07 | Greer Hydraulics, Inc. | High frequency pulse dampener |
FR2514412A1 (en) | 1981-10-14 | 1983-04-15 | Peugeot Cycles | DEVICE FOR MODULATING THE FLOW OF GASES IN AN EXHAUST MUFFLER OF AN INTERNAL COMBUSTION ENGINE |
JPS6115443U (en) * | 1984-06-30 | 1986-01-29 | 東プレ株式会社 | Constant air flow device for air conditioning |
SE447290B (en) | 1985-03-19 | 1986-11-03 | Volvo Ab | DEVICE NOISE MEASURING MEASUREMENT THROUGH A GAS STAINLESS STEEL VALVE CONTROL VALVE |
US4609068A (en) | 1985-07-29 | 1986-09-02 | Drew Backlund | Exhaust accessory unit for internal combustion engines |
US4903486A (en) | 1987-12-01 | 1990-02-27 | Larry K. Goodman | Performance responsive muffler for internal combustion engines |
US5582210A (en) * | 1992-09-21 | 1996-12-10 | Proprietary Technology, Inc. | Spring metal flow control apparatus |
RU2065979C1 (en) * | 1993-03-29 | 1996-08-27 | Военно-морская академия им.адмирала флота Советского Союза Н.Г.Кузнецова | Exhaust muffler |
RU2062940C1 (en) * | 1993-10-27 | 1996-06-27 | Военно-морская академия им.адм.Флота Советского Союза Н.Г.Кузнецова | Pressure pulse damper |
US5614699A (en) | 1994-05-09 | 1997-03-25 | Nissan Motor Co., Ltd. | Automobile exhaust noise suppressor |
US5489753A (en) | 1994-07-11 | 1996-02-06 | Allied Witan Company | Static dissipative muffler |
US5583325A (en) | 1995-04-26 | 1996-12-10 | Carrier Corporation | Muffler with integral check valve |
US5901751A (en) * | 1996-03-08 | 1999-05-11 | Applied Materials, Inc. | Restrictor shield having a variable effective throughout area |
US5740837A (en) * | 1996-11-05 | 1998-04-21 | Chiang; Swea Tong | Means for automatically regulating water pressure in water pipe |
US5819802A (en) * | 1997-09-12 | 1998-10-13 | Fan; Jui Hua | I-type counterflow absorber |
DE19907583A1 (en) * | 1999-02-22 | 2000-08-24 | Guethler Renate | Drainage system |
-
2000
- 2000-12-07 US US09/731,634 patent/US6390132B1/en not_active Expired - Fee Related
-
2001
- 2001-10-31 JP JP2002548290A patent/JP2004515682A/en active Pending
- 2001-10-31 AU AU2002228740A patent/AU2002228740A1/en not_active Abandoned
- 2001-10-31 DE DE10196315T patent/DE10196315T5/en not_active Withdrawn
- 2001-10-31 GB GB0220255A patent/GB2381044A/en not_active Withdrawn
- 2001-10-31 WO PCT/US2001/046069 patent/WO2002046585A2/en active Application Filing
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150019022A1 (en) * | 2013-07-12 | 2015-01-15 | John C. Karamanos | Fluid control measuring device |
US10030882B2 (en) | 2013-07-12 | 2018-07-24 | Best Technologies, Inc. | Low flow fluid controller apparatus and system |
US10088821B2 (en) | 2013-07-12 | 2018-10-02 | Best Technologies, Inc. | Self balancing air fixture |
US10175669B2 (en) | 2013-07-12 | 2019-01-08 | Best Technologies, Inc. | Fluid control measuring and controlling device |
US10444771B2 (en) * | 2013-07-12 | 2019-10-15 | John C. Karamanos | Fluid control measuring device |
US10591175B2 (en) | 2013-07-12 | 2020-03-17 | Best Technologies, Inc. | Low flow fluid controller apparatus and system |
US10655875B2 (en) | 2013-07-12 | 2020-05-19 | Best Technologies, Inc. | Low flow fluid device and pre-piped hydronics |
US10955159B2 (en) | 2013-07-12 | 2021-03-23 | Best Technologies, Inc. | Variable aperture fluid flow assembly |
US11231195B2 (en) | 2013-07-12 | 2022-01-25 | Best Technologies, Inc. | HVAC self-balancing components and controls |
US11231196B2 (en) | 2013-07-12 | 2022-01-25 | Best Technologies, Inc. | Test stand data table-based fluid flow device with remote calibration system and method |
US11429121B2 (en) | 2013-07-12 | 2022-08-30 | Best Technologies, Inc. | Fluid flow device with sparse data surface-fit-based remote calibration system and method |
US11681306B2 (en) | 2013-07-12 | 2023-06-20 | Best Technologies, Inc. | Low flow fluid device and pre-piped hydronics |
US11687101B2 (en) | 2013-07-12 | 2023-06-27 | Best Technologies, Inc. | HVAC self-balancing components and controls |
US11698646B2 (en) | 2013-07-12 | 2023-07-11 | Best Technologies, Inc. | HVAC self-balancing components and controls |
US11815923B2 (en) | 2013-07-12 | 2023-11-14 | Best Technologies, Inc. | Fluid flow device with discrete point calibration flow rate-based remote calibration system and method |
US11947370B2 (en) | 2013-07-12 | 2024-04-02 | Best Technologies, Inc. | Measuring pressure in a stagnation zone |
Also Published As
Publication number | Publication date |
---|---|
US6390132B1 (en) | 2002-05-21 |
WO2002046585A3 (en) | 2003-02-06 |
GB2381044A (en) | 2003-04-23 |
JP2004515682A (en) | 2004-05-27 |
DE10196315T5 (en) | 2004-07-01 |
WO2002046585A2 (en) | 2002-06-13 |
GB0220255D0 (en) | 2002-10-09 |
AU2002228740A1 (en) | 2002-06-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6390132B1 (en) | Fluid stream pulse damper | |
CN101289952B (en) | Expanding cavity adjustable exhaust silencer | |
JP3645864B2 (en) | Equipment for noise configuration in motor vehicles | |
US5821474A (en) | Muffler with variable damping characteristics | |
US5723827A (en) | Noise suppressing muffler | |
US6932189B2 (en) | Device for noise structuring in a motor vehicle | |
US5708237A (en) | Automobile exhaust noise silencer | |
KR900700723A (en) | Active sound damping system for engine exhaust systems | |
US7779962B2 (en) | Muffler | |
KR100587811B1 (en) | Apparatus to reduce the exhaust pressure of muffler | |
CA2490437A1 (en) | Hydro bearing | |
US8079441B2 (en) | Muffler | |
KR100311156B1 (en) | Muffler valve for internal combustion engine | |
CN220227641U (en) | Vibration isolator | |
JPS62291413A (en) | Exhaust muffler | |
JP3344239B2 (en) | Automotive exhaust silencer | |
JP2005188364A (en) | Muffler for vehicle | |
JPH0861040A (en) | Exhaust silencer of engine for vehicle | |
KR100612750B1 (en) | Variable muffler | |
KR200378658Y1 (en) | The exhaust sensibility of two-way muffler | |
KR20000060181A (en) | Muffler for internal combustion engine | |
KR100501118B1 (en) | Muffler for vehicle | |
JP2004204802A (en) | Muffler for vehicle | |
KR19980036722A (en) | Exhaust Pressure Sensitive Automotive Silencer | |
JP2586345Y2 (en) | Active silencer |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: CATERPILLAR INC., ILLINOIS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:JOHNSON, JOEL S.;KNOX, KEVIN J.;REEL/FRAME:011378/0518 Effective date: 20001017 |
|
FPAY | Fee payment |
Year of fee payment: 4 |
|
REMI | Maintenance fee reminder mailed | ||
LAPS | Lapse for failure to pay maintenance fees | ||
STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
|
FP | Lapsed due to failure to pay maintenance fee |
Effective date: 20100521 |