WO2003044336A1 - Dispositif de refroidissement et d'insonorisation pour le traitement des gaz d'echappement d'un moteur a combustion interne - Google Patents

Dispositif de refroidissement et d'insonorisation pour le traitement des gaz d'echappement d'un moteur a combustion interne Download PDF

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Publication number
WO2003044336A1
WO2003044336A1 PCT/CN2002/000835 CN0200835W WO03044336A1 WO 2003044336 A1 WO2003044336 A1 WO 2003044336A1 CN 0200835 W CN0200835 W CN 0200835W WO 03044336 A1 WO03044336 A1 WO 03044336A1
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Prior art keywords
cover body
cover
cooling device
hole
end surface
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PCT/CN2002/000835
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English (en)
French (fr)
Inventor
Shusheng Li
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Shusheng Li
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Priority to AU2002349744A priority Critical patent/AU2002349744A1/en
Publication of WO2003044336A1 publication Critical patent/WO2003044336A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/0217—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters the filtering elements having the form of hollow cylindrical bodies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
    • F01N3/035—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors, e.g. catalysed diesel particulate filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/037—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of inertial or centrifugal separators, e.g. of cyclone type, optionally combined or associated with agglomerators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2882—Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2882—Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices
    • F01N3/2885—Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices with exhaust silencers in a single housing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2370/00—Selection of materials for exhaust purification
    • F01N2370/40—Activated carbon or charcoal

Definitions

  • the first aspect of the present invention relates to a device for processing exhaust gas of an internal combustion engine, particularly a device for muffling and cooling exhaust gas discharged from an internal combustion engine. Background technique
  • the processing of the exhaust emissions of internal combustion engines include not only the processing of the CO, C0 2, HC and NOx and other harmful substances, but also should include handling of noise and heat generated when the internal combustion engine exhaust emissions. Minimize its environmental impact.
  • the present invention proposes a muffler cooling device for processing noise and heat generated when exhaust gas from an internal combustion engine is discharged.
  • the silencing cooling device of the present invention includes: an outer casing having a first end surface and a second end surface; an air inlet on the first end surface; an air outlet on the second end surface; a first cover body having one end and the first end surface Connected; and a second cover body, located in the first cover body, one end of which is in communication with the air inlet on the first end surface.
  • Both the side wall of the first cover body and the side wall of the second cover body have a plurality of ventilation holes.
  • the other end of the first cover body contains a restriction hole, and the other end of the second cover body shares the same restriction hole with the first cover body.
  • vent holes of the first cover body and the vent holes of the second cover body are staggered in the circumferential direction.
  • it further includes a third cover body disposed in the outer shell body, a side wall of which is provided with a vent hole, and one end is connected to the second end face of the outer shell body, and the other end is connected to the first The end faces of the cover body with limited flow holes are opposite.
  • the silencing cooling device of the present invention has a simple structure, but can obtain a good silencing cooling effect.
  • FIG. 1 is a schematic diagram of a muffled cooling device according to the present invention
  • FIG. 2 is a cross-sectional view of the silencing cooling device shown in FIG. 1.
  • Figures 1 and 2 show a preferred embodiment of a silencing cooling device 200 of a system according to the invention.
  • the silencing cooling device 200 includes: a cover body 2000 having a first end surface 30 and a fourth end surface 40.
  • a first cover body 201 is provided in the cover body 2000, one end of which is connected to the first end surface 30, and the other end has a restriction hole 2013.
  • a second cover 202 is also provided in the first cover 201.
  • the first cover body and the second cover body 201 and 202 are fixed to the first end surface 30.
  • a restriction hole 2013 may be provided on the end surface 2012 of the first cover 201 to communicate with the air inlet 31 on the first end surface 30.
  • the other end of the second cover body shares the same restriction hole as the first cover body.
  • the first and second cover bodies are cylindrical and have a plurality of vent holes in their side walls.
  • vent holes of the first cover body and the vent holes of the second cover body are preferably arranged staggered in the circumferential direction to enhance the reversing effect of the tail gas.
  • the diameter of the restriction hole 2013 can be smaller than the diameter of the opening of the air inlet 31, so that the exhaust gas cannot be easily discharged directly from the hole 2013, but enters the space defined by the first cover and the second cover. It is then discharged from the outlet 41 on the fourth end surface 40.
  • FIG. 1 and 2 also show another embodiment of the silencing cooling device 200.
  • it also includes a third cover 204 fixedly connected to the second end surface 40 of the system.
  • the third cover 204 has a closed end 2042 and a plurality of vent holes 2041 in the side wall. In this case, the exhaust gas discharged from the holes 2013 and 2011 first enters the third cover 204 through the vent hole 2041, and is then discharged from the output port 41.
  • the exhaust gas in the inner cavity 203 enters the third cover body 204 through the hole 2041, and is then discharged from the air outlet 41. After multi-stage diffusion, the exhaust gas temperature will be reduced. Because the frequency of the tail gas changes due to changes in the flow direction, noise can be significantly reduced.
  • the vent holes 2011, 2021, and 2041 are preferably designed as irregular surfaces to enhance the sound attenuation effect.
  • the temperature of the exhaust gas drops H. Water vapor (if any) in the exhaust gas is cooled to liquid water. At the same time, the exhaust is silenced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Biomedical Technology (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Processes For Solid Components From Exhaust (AREA)
  • Exhaust Silencers (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Description

处理内燃机尾气的消音冷却装置 技术领域
本发明一^:涉及处理内燃机尾气的装置 , 特别是将内燃机排出的尾气进行 消音和冷却的装置。 背景技术
内燃机已被广泛用于各种不同的交通工具。 从内燃机排出的尾气含有 CO, C02, HC和 NOx, 这些气体是导致大气污染和地球温室效应的主要因素之一。
另一方面， 随着城市车辆的不断增加， 各种机动车辆中的内燃机在工作中 排放尾气时所产生的噪声污染也成为越来越严重的问题。 而且由于各种内燃机 所排放的尾气温度较高， 因此也成为夏季在车辆较多的城市中产生热岛效应的 主要原因之一。
因此， 对内燃机所排放的尾气的处理不仅应包含对 CO, C02, HC和 NOx 等有害物质的处理， 而且也应当包含对内燃机排放尾气时产生的噪音和热量的 处理。 使之对环境的影响降低到最低的限度。
本发明针对上述问题而提出了一种用于处理内燃机排放尾气时产生的噪音 和热量的消音冷却装置。 本发明概述
本发明的消音冷却装置包括： 外壳体， 具有第一端面和第二端面； 进气口， 位于第一端面上； 出气口， 位于第二端面上； 第一罩体， 其一端与第一端面连 接； 和第二罩体， 位于第一罩体内， 其一端与第一端面的进气口连通。 第一罩 体的侧壁和第二罩体的侧壁都具有多个通气孔。
在本发明的一个优选实施方案中， 第一罩体的另一端含有限流孔， 并且第 二罩体的另一端与第一罩体共用相同的限流孔。
在本发明的又一个优选实施方案中， 第一罩体的通气孔和第二罩体的通气 孔在圆周方向上错开排列。
在本发明的又一个优选实施方案中，还包括一设置于外壳体内的第三罩体， 其侧壁上开有通气孔， 并且一端与上述外壳体的第二端面连接， 另一端与第一 罩体带有限流孔的端面相对。
本发明的消音冷却装置结构简单 , 但可以收到很好的消音冷却效果。 附图筒要说明
图 1是根据本发明的消音冷却装置的示意图； 图 2是图 1所示的消音冷却装置的剖视图。 本发明优选实施方式
图 1和图 2显示了根据本发明的系统的消音冷却装置 200的一优选实施方 式。
消音冷却装置 200包括： 罩体 2000, 具有第一端面 30和第四端面 40。 在 罩体 2000中设置有第一罩体 201 , 其一端与第一端面 30连接， 另一端具有限 流孔 2013。 第一罩体 201内还设置有第二罩体 202。 第一罩体和第二罩体 201 ,202固定在第一端面 30上。在第一罩体 201的端面 2012上可以设置限流孔 2013， 与第一端面 30上的进气口 31连通。 第二罩体的另一端与第一罩体共用相同的 限流孔。 在该实施例中， 第一和第二罩体为圆柱形的， 并且在它们的侧壁上具 有多个通气孔。 第一罩体的通气孔和第二罩体的通气孔最好在圆周方向上错开 排列， 以增强尾气流的换向效果。 限流孔 2013的直径可以比进气口 31的开口 直径小，从而使尾气不能轻易地从孔 2013直接排出，而是进入到由第一罩体和 第二罩体所限定的空间内， 最后再从第四端面 40上的出口 41排出。
图 1和图 2还显示了消音冷却装置 200的另一实施例。 在该实施例中， 它 还包括一个固定连接于系统的第二端面 40上的笫三罩体 204。第三罩体 204具 有封闭的端 2042， 并在侧壁上有多个通气孔 2041。 在这种情况下， 从孔 2013 和 2011排出的尾气先通过通气孔 2041进入第三罩体 204，再从输出口 41排出。
这样， 当尾气进入消音冷却装置 200时，一部分尾气通过孔 2021进入由第 一罩体 201和第二罩体 202所限定的空间内，然后从孔 2011扩散出去。 另一部 分尾气则通过限流孔 2013进入消音冷却装置 200的内腔 203。
在第三罩体 204存在的情况下，在内腔 203中的尾气通过孔 2041进入第三 罩体 204内， 再从出气口 41排出。 在经过多级扩散后， 尾气温度将被降低。 因 为尾气流的频率会由于流向的改变而改变， 因此可以显箸地降低噪声。 优选通 气孔 2011、 2021和 2041设计为不规则的表面， 以增强消音效果。
在用消音冷却装置处理之后， 尾气的温度降 H 尾气中的水蒸汽（如果有 的话）被冷却为液体水。 同时尾气被消音。
本领域的技术人员应当理解，上述实施例和说明只是对本发明的举例说明。 在本发明的精神和实质范围内的各种修改都应属于本发明的范围。

Claims

权 利 要 求 书
1.一种用于内燃机尾气处理的消音冷却装置， 包括：
外壳体， 具有第一端面和第二端面；
进气口， 位于所述第一端面上；
出气口， 位于所述第二端面上；
第一罩体， 其一端与所述第一端面连接； 和
第二罩体， 位于所述第一罩体内， 其一端与所述第一端面的进 气口连通，
其中， 在所述第一罩体的侧壁和所述第二罩体的侧壁上都具有多个 通气孔。
2. 才艮据权利要求 1 的消音冷却装置， 其中第一罩体的另一端含 有限流孔， 并且所述第 罩体的另一端与所述第一罩体共用相同的 限流孔。
3. 才艮据权利要求 2的消音冷却装置， 进一步包括设置于所述外 壳体内的第三罩体， 其侧壁上开有通气孔， 并且其一端与所述外壳 体的所述第二端面连接， 另一端与第一罩体带有限流孔的端面相对。
4. 才艮据权利要求 3的消音冷却装置， 其中所述第三罩体的所述 另一端为封闭端。
5. 才 据权利要求 2的消音冷却装置， 其中所述第一罩体的通气 孔和第二罩体的通气孔在圓周方向上错开排列。
6. 才艮据权利要求 3的消音冷却装置， 其中所述第一罩体和第二 罩体的通气孔在圓周方向上错开排列。
7. 才艮据权利要求 1的消音冷却装置， 其中所述第一罩体的所述 限流孔的孔径小于所述进气口的孔径。
8. 才 据权利要求 3的消音冷却装置， 其中所述第一罩体的所述 限流孔的孔径小于所述进气口的孔径。
9. 才艮据权利要求 6的消音冷却装置， 其中所述通气孔和限流孔 具有不规则表面。
10. 根据权利要求 8 的消音冷却装置， 其中所述通气孔和限流 .孔具有不规则表面。
3
更正页（细则第 91条)
PCT/CN2002/000835 2001-11-22 2002-11-22 Dispositif de refroidissement et d'insonorisation pour le traitement des gaz d'echappement d'un moteur a combustion interne WO2003044336A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002349744A AU2002349744A1 (en) 2001-11-22 2002-11-22 A cooling and silencing device for processing the exhaust gas from an internal combustion engine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN01129977.0 2001-11-22
CNB011299770A CN1171007C (zh) 2001-11-22 2001-11-22 内燃机高功率输出、尾气低温排放净化系统

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WO2003044336A1 true WO2003044336A1 (fr) 2003-05-30

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Family Applications (5)

Application Number Title Priority Date Filing Date
PCT/CN2002/000837 WO2003044341A1 (fr) 2001-11-22 2002-11-22 Procede pour ameliorer le rendement d'un moteur par traitement des gaz d'echappement et dispositif d'application du procede
PCT/CN2002/000838 WO2003044340A1 (fr) 2001-11-22 2002-11-22 Dispositif de tourbillonnement et systeme de traitement des gaz d'echappement d'un moteur a combustion interne
PCT/CN2002/000834 WO2003044337A1 (fr) 2001-11-22 2002-11-22 Dispositif d'absorption utilise pour le traitement des gaz d'echappement d'un moteur
PCT/CN2002/000836 WO2003044339A1 (fr) 2001-11-22 2002-11-22 Dispositif filtrant les gaz d'echappement
PCT/CN2002/000835 WO2003044336A1 (fr) 2001-11-22 2002-11-22 Dispositif de refroidissement et d'insonorisation pour le traitement des gaz d'echappement d'un moteur a combustion interne

Family Applications Before (4)

Application Number Title Priority Date Filing Date
PCT/CN2002/000837 WO2003044341A1 (fr) 2001-11-22 2002-11-22 Procede pour ameliorer le rendement d'un moteur par traitement des gaz d'echappement et dispositif d'application du procede
PCT/CN2002/000838 WO2003044340A1 (fr) 2001-11-22 2002-11-22 Dispositif de tourbillonnement et systeme de traitement des gaz d'echappement d'un moteur a combustion interne
PCT/CN2002/000834 WO2003044337A1 (fr) 2001-11-22 2002-11-22 Dispositif d'absorption utilise pour le traitement des gaz d'echappement d'un moteur
PCT/CN2002/000836 WO2003044339A1 (fr) 2001-11-22 2002-11-22 Dispositif filtrant les gaz d'echappement

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AU2002349749A1 (en) 2003-06-10
AU2002349746A1 (en) 2003-06-10
US20030106310A1 (en) 2003-06-12
WO2003044339A1 (fr) 2003-05-30
US6725654B2 (en) 2004-04-27
CN1171007C (zh) 2004-10-13
CN1360139A (zh) 2002-07-24
WO2003044340A1 (fr) 2003-05-30
AU2002349744A1 (en) 2003-06-10
WO2003044341A1 (fr) 2003-05-30
WO2003044337A1 (fr) 2003-05-30
AU2002349747A1 (en) 2003-06-10

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