WO2003044341A1 - Procede pour ameliorer le rendement d'un moteur par traitement des gaz d'echappement et dispositif d'application du procede - Google Patents

Procede pour ameliorer le rendement d'un moteur par traitement des gaz d'echappement et dispositif d'application du procede Download PDF

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Publication number
WO2003044341A1
WO2003044341A1 PCT/CN2002/000837 CN0200837W WO03044341A1 WO 2003044341 A1 WO2003044341 A1 WO 2003044341A1 CN 0200837 W CN0200837 W CN 0200837W WO 03044341 A1 WO03044341 A1 WO 03044341A1
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WIPO (PCT)
Prior art keywords
exhaust gas
end surface
vortex
cone
vortex device
Prior art date
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PCT/CN2002/000837
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English (en)
French (fr)
Inventor
Shusheng Li
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Shusheng Li
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Publication date
Application filed by Shusheng Li filed Critical Shusheng Li
Priority to AU2002349747A priority Critical patent/AU2002349747A1/en
Publication of WO2003044341A1 publication Critical patent/WO2003044341A1/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 present invention relates to a method for treating exhaust gas from an internal combustion engine and a device using the method, and more particularly, to a method for increasing the power of an internal combustion engine through exhaust gas, and a device for implementing the method.
  • one of the objectives of the present invention is to provide a method for increasing power by processing exhaust gas, the method including steps:
  • the processor is a vortexer
  • step b) is performed by introducing exhaust gas into an airflow guide device in the vortexer, and the airflow guide device is provided in the vortexer An internal cone opposite the exhaust inlet on the vortex.
  • the method of the present invention further comprises the step of subjecting the tail gas to a catalytic reaction in a vortex.
  • the catalytic reaction is accomplished by exhaust gas and alumina in a vortex.
  • Another object of the present invention is to provide a swirler for exhaust gas treatment of an internal combustion engine, by which the method for improving the power of an internal combustion engine of the present invention can be realized.
  • a swirler for treating exhaust gas of an internal combustion engine includes: a housing including a first end surface and a second end surface; an air inlet port located at the first end surface of the housing and communicating with an exhaust pipe of the internal combustion engine; an air outlet port located at the second end surface
  • a restrictor plate which is arranged parallel to the first end surface and is fixedly connected to the casing, and is provided with a plurality of ventilation holes; an airflow guide device is located between the first end surface and the restrictor plate, and is fixed to the restrictor plate connection.
  • the airflow guiding device in the present invention may be one or more metal spheres, hemispheres, or cones connected to the restrictor plate, preferably a cone is used, and the cone tip of the cone faces the air inlet.
  • the projection of the cone covers the position of the air inlet and the orifice of the restrictor plate, so that after the exhaust gas enters the vortex device, it first contacts the airflow guide device to form a vortex in the vortex device.
  • the airflow guiding device and the restrictor are connected by a cylindrical connecting member.
  • the cross-sectional radius of the connecting member is preferably smaller than the cross-sectional radius of the connecting body.
  • the inner wall of the casing may be an aluminum oxide layer, and the surface of the current limiting plate may be a metal copper layer.
  • the casing is cylindrical or approximately cylindrical.
  • the housing further includes a thermal insulation layer.
  • the swirler includes a housing including a first end surface and a second end surface; an air inlet is located at a first end surface of the housing and communicates with an exhaust pipe of an internal combustion engine; an air outlet is located at a second end surface; Is a hollow cone with a bottom surface connected to the first end surface, and a wall of the cone has a plurality of restricting holes.
  • the inner wall of the cone may be an alumina layer or a mixed layer of alumina and copper.
  • the exhaust gas discharged from the previous working cylinder cannot be immediately discharged from the exhaust pipe, but is re-entered into the next working cylinder for combustion through the exhaust manifold, so that the fuel combustion is more sufficient, and the power of the internal combustion engine is effectively improved.
  • the exhaust gas is brought into contact with alumina on the inner wall of the vortexer under a temperature rising condition, and a series of catalytic reactions are performed to break the large molecules into small molecules.
  • FIG. 1 is a structural diagram of a vortex device of the present invention
  • FIG. 2 is a sectional view of the vortex device shown in FIG. 1;
  • FIG. 3 is a schematic axial sectional view of another vortex device according to the present invention.
  • FIG. 4 is a schematic diagram of an embodiment of a current limiting plate in the vortex device of the present invention. Detailed description of the invention
  • a vortex device of the present invention includes a housing 100.
  • the housing 100 includes a first end surface 10 and a second end surface 20.
  • the first end surface has an air inlet 11 connected to the exhaust pipe of the internal combustion engine, and the second end surface has an air outlet 21.
  • the restrictor plate 104 is disposed in the housing in parallel with the first end surface and the second end surface.
  • the surface of the current limiting plate 104 is provided with protrusions or depressions for enhancing the eddy current effect, and a current limiting hole 1041 is opened between the protrusions or depressions.
  • An airflow guiding device 103 is connected to the restrictor plate 104.
  • the airflow guiding device 103 may be a cone 102 directly connected to the restrictor plate 104.
  • the cone 102 may also be connected to the current limiting plate through a connecting body 110.
  • the cone 102 may also have other shapes, such as a sphere and a hemisphere.
  • Restrictor plate surface and cone The surface can be plated with metallic copper.
  • the airflow guide device 103 is disposed directly opposite the air inlet 11 so that the exhaust gas can directly contact the airflow guide device after entering the swirler.
  • the position of the restriction hole 1041 provided in the restriction plate is preferably covered by the projection of the cone. The distance between the cone tip of the cone and the air inlet can be determined according to the situation, which is well known to those skilled in the art.
  • a portion of the inner wall of the housing between the first end surface 10 and the retarder 104 may be A1 2 0 3 layers.
  • the exhaust gas when the exhaust gas enters the swirler from the air inlet 11, the exhaust gas generates a vortex under the action of the airflow guide device 103, thereby increasing the temperature of the exhaust gas.
  • the temperature of the exhaust gas can be increased to about 500 ° C.
  • the restrictor plate due to the effect of the restrictor plate, the exhaust gas cannot immediately escape from the air outlet 21 on the second end surface 20, and its pressure is maintained or even relatively increased.
  • the NOx, CO, and HC in the tail gas can be further reacted under the catalysis of A1 2 0 3 and Cu to convert CO into CO 2 and decompose the remaining macromolecular hydrocarbons in the tail gas into small molecular hydrocarbons.
  • the exhaust gas discharged from an exhaust manifold of the internal combustion engine is not immediately discharged from the exhaust pipe, but enters other manifolds to return to the internal combustion engine.
  • the inner wall of the casing may further include a thermal insulation layer 108.
  • the thermal insulation layer 108 can be completed by filling a thermal insulation material between the inner and outer walls of the housing.
  • the exhaust gas that escapes from the air hole 1041 on the restrictor plate 104 enters the cavity 105 and is discharged from the air outlet 21 on the second end surface.
  • Fig. 3 shows a schematic diagram of another vortex device according to the present invention.
  • the eddy current device includes a housing 200 including a first end surface 30 and a second end surface 40 thereon.
  • the air inlet 31 is located on the first end surface 30 and communicates with the exhaust pipe of the internal combustion engine.
  • the air outlet 41 is located on the second end surface 40.
  • the airflow guide 202 is a hollow cone 203 with a bottom surface connected to the first end surface 30.
  • the inner wall surface of the cone 203 is provided with protrusions or depressions for enhancing the eddy current effect.
  • a restriction hole 2041 is provided around these protrusions or depressions.
  • the side wall of the carcass 204 functions as a restrictor.
  • the inner wall of the side wall 204 may be an aluminum oxide layer, or an alternate layer of aluminum oxide and metallic copper.
  • the vortex When the exhaust gas enters the vortex, the vortex is also generated by the cone 203. And can make the exhaust gas warm up and pressurize in it. In addition, due to the role of the catalyst, the tail gas undergoes further chemical reactions therein. The exhaust gas overflowing from the restriction hole 2041 is discharged through the exhaust port 21 on the second end surface 20.

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  • 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

通过处理尾气提高内燃机功率的方法
以及实现该方法的设备 本发明领域
本发明涉及内燃机尾气处理方法以及使用该方法的设备， 更确切地说， 涉 及通过尾气提高内燃机功率的方法， 以及实施该方法的设备。 本发明技术背景
目前， 一般内燃机尾气经气鉦排出后， 大多不经过特殊处理， 有的直接排 空， 有的则进入尾气处理装置进行催化转化以消除尾气中有害物盾， 但是这些 处理对内燃机功率本身并没有太大影响。
然而本发明人发现， 如果提高内燃机气缸的尾气排放压力（同时，尾气的排 放温度相应提高），使前一气缸的排放气体进入后一汽缸内继续燃烧， 则对提高 内燃机的功率将产生很大影响， 由此， 本发明人完成本发明。 本发明概述
因此， 本发明的目的之一是提供一种通过处理尾气提高功率的方法， 该方 法包括步骤： ,
a)将内燃机管排出的尾气通过一进气口引入一处理器，
b)将尾气在处理器内提高尾气的排放压力。
在本发明的一优选实施方案中， 上述处理器是一涡流器， 而步骤 b)是通过 将尾气引入到该涡流器中的气流导向装置上完成的， 所述气流导向装置为设置 在涡流器内部的与涡流器上尾气引入口相对的一圆锥体。
在本发明的一实施方案中， 本发明方法进一步包括在涡流器内将尾气进行 催化反应的步骤。 催化反应是通过尾气和设在涡流器内的氧化铝来完成的。
本发明的另一目的是提供一种内燃机尾气处理的涡流器， 通过该涡流器， 可以实现本发明提高内燃机功率的方法。
根据本发明， 处理内燃机尾气的涡流器包括： 壳体， 包括第一端面和第二 端面； 进气口， 位于壳体的第一端面， 与内燃机排气管连通； 出气口， 位于第 二端面上； 限流板， 与第一端面平行而设， 与壳体固定连接， 其上设有多个通 气孔； 气流导向装置， 位于第一端面和限流板之间， 并与限流板固定连接。
本发明中的气流导向装置可以为一个或多个与限流板连接的金属球体、 半 球体或圆锥体，优选使用一圆锥体， 并且锥体的锥尖正对进气口。在此情况下， 锥体的投影覆盖进气口和限流板通气孔所在位置， 使得尾气进入涡流器后， 首 先与气流导向装置接触， 在涡流器内形成涡流。 ' 在本发明的一实施方案中， 气流导向装置与限流板通过一圆柱形连接件连 接。 在此情况下， 连接件的截面半径优选小于连接体的截面半径。
本发明涡流器中， 壳体内壁可为氧化铝层， 限流板表面可为金属铜踱层。 在本发明的一优选方案中， 壳体为圆柱形或近似圆柱形。 壳体进一步包括 一保温层。
本发明的再一目的是提供另一实现本发明方法的涡流器。 该涡流器包括一 壳体， 其上包括第一端面和第二端面； 进气口， 位于壳体的笫一端面， 与内燃 机排气管连通； 出气口， 位于第二端面上； 气流导向装置， 为底面与第一端面 连接的空心锥体， 所述锥体的壁上具有多个限流孔。
在本发明中，所述锥体内壁可为氧化铝层，也可以为氧化铝与铜的混合层。 借助于本发明的涡流器， 尾气在排出汽缸时进入涡流器后， 由于涡流器中 气流导向装置的设置， 可以将进入涡流器的尾气最大程度地产生涡流， 并得到 升温， 同时， 由于限流板的作用， 使尾气不能被立即排出涡流器， 从而使其压 力得到维持甚至升高。 其结果是， 从前一工作汽缸排出的尾气不能立即从排气 管排出， 而是经过排气岐管重新进入下一工作汽缸内燃烧， 则燃料燃烧更加充 分， 使内燃机功率得到有效地提高。 并且， 尾气在温度升高的条件下与涡流器 内壁上的氧化铝接触， 进行系列催化反应， 将其中的大分子裂解成的小分子，
CO和 NOx也得到有效的转变， 为以后的尾气进一步处理提供了有利的条件。 附图筒要说明
图 1为本发明一种涡流器的结构图；
图 2为图 1所示涡流器的剖面图；
图 3为本发明另一种涡流器的轴向剖面示意图；
图 4为在本发明的涡流器中笫一限流板的实施例的示意图。 本发明详述
以下结合附图对本发明作进一步详细描述。
参见图 1和图 2，本发明的一种涡流器包括壳体 100。 壳体 100包括第一端 面 10和第二端面 20。 在第一端面上具有与内燃机排气管连接的进气口 11 , 而 在第二端面上则有出气口 21。限流板 104与第一端面和第二端面平行而设于壳 体内。如图 4所示，限流板 104表面设置有用于增强涡流效果的凸起或凹陷，在 所述凸起或凹陷之间开设限流孔 1041。限流板 104上连接有气流导向装置 103。 在本发明的一实施方案中， 气流导向装置 103可以是直接连接于限流板 104上 的锥体 102。 而在另一实施方案中， 所述锥体 102也可通过一连接体 110与限 流板连接。 锥体 102也可以为其它形状, 如球体和半球体。 限流板表面和锥体 表面可镀上金属铜。
气流导向装置 103设置为正对进气口 11， 以便当尾气进入涡流器后能够直 接接触气流导向装置。为此目的，设于限流板的限流孔 1041的位置最好被锥体 的投影覆盖。 锥体的锥尖与进气口的距离可根据 情况而定， 这是本领域技^ 员熟知的。
在本发明的该涡流器实施方案中， 壳体的内壁位于第一端面 10 与緩流板 104之间部分可为 A1203层。 如此， 当尾气从进气口 11进入涡流器后， 尾气在 气流导向装置 103的作用下产生涡流， 从而提高了尾气的温度。 在本发明中， 尾气的温度可以提高到 500°C左右。 同时， 由于限流板的作用， 尾气不能马上 从第二端面 20上的出气口 21逸出， 则其压力得到保持甚至相对提高。 在此情 况下， 尾气中的 NOx, CO, HC在 A1203和 Cu的催化下， 可进一步反应， 将 CO 转化为 C02, 并将尾气中残留的大分子烃分解为小分子烃。 由于压力因素， 使 得从内燃机某一排气歧管排出的尾气并不马上从排气管中排出， 而是进入其它 歧管重返内燃机内燃烧。 为保证涡流器内的尾气不因散热太快而降温， 在壳体 的内壁还可包括一保温层 108。 保温层 108可以通过在壳体内、 外壁间填充保 温材料的方式完成。
从限流板 104上气孔 1041逸出的尾气进入空腔 105后从笫二端面上的出气 口 21排出。
图 3示出了本发明另一种涡流器的示意图。 该涡流器包括一壳体 200, 其上 包括第一端面 30和第二端面 40。 进气口 31位于第一端面 30上， 与内燃机排气管 连通。 出气口 41位于第二端面 40上。气流导向装置 202为底面与第一端面 30连接 的空心锥体 203。 锥体 203内壁表面设置有用于增强涡流效果的凸起或凹陷，在 这些凸起或凹陷的周围开设限流孔 2041。在该实施方案中，雉体 204的侧壁起限 流板的作用。侧壁 204的内壁可以为氧化铝层，也可为氧化铝与金属铜的交替层。
当尾气进入该涡流器内后， 在锥体 203的作用下， 同样产生涡流。 并能够使 尾气在其中升温增压。 又， 由于催化剂的作用， 使得尾气在其中进行进一步的 化学反应。 从限流孔 2041中溢出的尾气经第二端面 20上的排气口 21排出。
上述描述和具体实施方式仅用来说明本发明 ,但并非作为对 ^发明的限制。 未离开本发明实廣的任何修改和变动都应属于本发明的等同范围。

Claims

权 利 要 求 书
1.一种通过处理尾气提高内燃机功率的方法， 包括：
a)将内燃机排气管排出的尾气通过一进气口引入一处理器，
b)将尾气在处理器内提高尾气的排放压力。
2. 根据权利要求 1 的方法， 其中所述的处理器是一涡流器， 所述步骤 b) 是通过将尾气引入到所述涡流器中的气流导向装置上完成的，所述气流导向装 置为设置在所述涡流器内部的与涡流器上进气口相对的一圆锥体。
3.根据权利要求 2的方法，其中所述方法进一步包括在涡流器内将尾气进 行催化反应的步驟。
4.根据权利要求 3的方法，其中所述方法进一步包括在涡流器内将尾气进 行催化反应的步骤。
5.根据权利要求 4的方法，其中催化反应是通过尾气和设在涡流器内的氧 化铝接触来完成的。
6.根据权利要求 5 的方法，其中催化反应是通过尾气和设在涡流器内的氧 化铝接触来完成的。
7. 一种处理内燃机尾气的涡流器， 包括：
壳体， 包括第一端面和第二端面；
进气口， 位于壳体的第一端面， 与内燃机排气管连通；
出气口， 位于第二端面上；
限流板， 与第一端面平行而设, 并与壳体固定连接， 其上设有多个限流孔; 气流导向装置， 位于第一端面和限流板之间， 并与限流板固定连接。
8.根据权利要求 7的涡流器，其中所述气流导向装置与第一限流板通过一 圆柱形连接件连接。
9.根据权利要求 8的涡流器， 其中所述气流导向装置为一锥体， 所述连接 体截面的半径小于所述锥体底面的半径。
10.根据权利要求 7的涡流器， 其中所述涡流器的壳体内壁为氧化铝层。
11.根据权利要求 8的涡流器， 其中所述涡流器的壳体内壁为氧化铝层。
12.根据权利要求 9的涡流器， 其中所述涡流器的壳体内壁为氧化铝层。
13.根据权利要求 7-12任一项的涡流器， 其中所述的限流板表面包括金属 铜镀层。
14.根据权利要求 13的涡流器，其中所述气流导向锥体的锥尖正对进气口, 锥体的投影覆盖进气口和限流板通气孔所在位置。
15.根据权利要求 7-12任一项的涡流器， 其中所述限流板表面设置有用于 增强涡流效果的凸起或凹陷，在所述凸起或凹陷之间开设限流孔。
16.根据权利要求 13的涡流器， 其中所述壳体进一步包括一保温层。
17. 一种处理内燃机尾气的涡流器， 包括：
壳体， 包括第一端面和第二端面；
进气口， 位于壳体的第一端面， 与内燃机排气管连通；
出气口， 位于第二端面上；
气流导向装置， 为底端与第一端面连接的空心锥体， 所述锥体的壁上具有 多个限流孔。
18.根据权利要求 17的涡流器，其中所述锥体内壁表面设置有用于增强涡 流效果的凸起或凹陷， 在所述凸起或凹陷的周围开设限流孔。
19.根据权利要求 18的涡流器， 其中所述锥体内壁为氧化铝层。
20.根据权利要求 18的涡流器，其中所述锥体内壁为氧化铝与铜的混合层。
PCT/CN2002/000837 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 WO2003044341A1 (fr)

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