CN101048581A - Exhaust for automobile - Google Patents

Exhaust for automobile Download PDF

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Publication number
CN101048581A
CN101048581A CN 200580036840 CN200580036840A CN101048581A CN 101048581 A CN101048581 A CN 101048581A CN 200580036840 CN200580036840 CN 200580036840 CN 200580036840 A CN200580036840 A CN 200580036840A CN 101048581 A CN101048581 A CN 101048581A
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China
Prior art keywords
exhaust gas
exhaust
vehicle
tail pipe
muffler
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CN 200580036840
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Chinese (zh)
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CN100554659C (en
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金寿元
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金寿元
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Priority to KR10-2004-0087548 priority Critical
Priority to KR1020040087548A priority patent/KR100684568B1/en
Application filed by 金寿元 filed Critical 金寿元
Publication of CN101048581A publication Critical patent/CN101048581A/en
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Publication of CN100554659C publication Critical patent/CN100554659C/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/08Other arrangements or adaptations of exhaust conduits
    • F01N13/082Other arrangements or adaptations of exhaust conduits of tailpipe, e.g. with means for mixing air with exhaust for exhaust cooling, dilution or evacuation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2260/00Exhaust treating devices having provisions not otherwise provided for
    • F01N2260/06Exhaust treating devices having provisions not otherwise provided for for improving exhaust evacuation or circulation, or reducing back-pressure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2270/00Mixing air with exhaust gases
    • F01N2270/08Mixing air with exhaust gases for evacuation of exhaust gases, e.g. in tail-pipes

Abstract

The present invention relates to an exhaust gas-discharging device for exhausting the burned gas utilized in an internal combustion engine, and more particularly, to an exhaust gas- discharging device of a vehicle for exhausting the burned gas to a muffler tail pipe, provided in an exhaust gas -discharging path of a vehicle, using airflow to improve fuel efficiency and torque of the vehicle. The exhaust gas -discharging device includes first and second fixed vanes (30 and 40), which are formed in the form of streamline shapes by cutting a side of a tail pipe (20) formed at the rear end of a muffler (10), provided on an exhaust gas-discharging path through which exhaust gas discharged from an engine of a vehicle passes, and which the same are bent inward, and spaced apart from each other to face each other, and a circulation exhaust gas-discharging device (50) having a pipe body (52) welded to the tail pipe and communicated with the first and second fixed vanes (30 and 40) to seal the first and second fixed vanes (30 and 40) from ambient air.

Description

车辆的排气装置 An exhaust device for a vehicle

技术领域 FIELD

本发明涉及一种用于对在内燃机中使用的燃烧过气体进行排放的废气排放装置,更具体地说,本发明涉及这样一种废气排放装置,其中该装置用于利用气流把燃烧过气体排放到消声器尾管以提高燃料效率和车辆扭矩,其中该消声器尾管设置在车辆废气排放路径上。 The present invention relates to an exhaust gas discharge device for use in an internal combustion engine through the combustion exhaust gas and, more particularly, the present invention relates to an exhaust system, wherein the means for utilizing the gas flow through the combustion gases to a muffler tail pipe of the vehicle to improve fuel efficiency and torque, wherein the muffler is disposed on the vehicle tailpipe emissions path.

背景技术 Background technique

已经公知的是,利用内燃机的车辆通过四冲程循环获得驱动功率,其中该四冲程循环由吸入冲程、压缩冲程、燃烧冲程和排放冲程组成。 It is well known that a vehicle using an internal combustion engine driving power obtained by the four-stroke cycle, where the four-stroke cycle of an intake stroke, a compression stroke, combustion stroke and exhaust stroke of the composition.

由于在发动机冲程(吸入冲程和排放冲程)期间的气流作用,在吸入冲程期间,当空气穿过空气净化器、节流阀等时,在没有相对较大阻力情况下空气被引入到内燃机内。 Since the gas flow in the engine stroke (intake stroke and a discharge stroke) period, during the intake stroke, when the air passes through the air cleaner, throttle, etc., in the absence of a relatively large resistance to the air is introduced into the internal combustion engine.

然而,在排放冲程期间,由于燃烧过气体穿过使用催化剂和消声器的空气净化器排放到尾管,因此在燃烧过气体流中出现相对较大阻力。 However, during the discharge stroke, a relatively large resistance occurs due to the combustion gases through the use of a catalyst and a muffler through an air cleaner to the exhaust tail pipe, so during combustion gas stream.

在从内燃机缸体到尾管的排放期间,在排气集管中,出现这样的现象,即在内燃机四冲程期间,进气阀和排气阀同时立即打开,也就是说,出现通常所说的“阀门重叠”的时刻。 During the internal combustion engine cylinder to tailpipe emissions in the exhaust manifold in such a phenomenon, i.e. during the four-stroke internal combustion engine, the intake and exhaust valves simultaneously open immediately, that is, there is generally said the "valve overlap" moment. 在此过程期间,出现了这样的现象,即废气被再次引入到缸体内,从而排气集管即刻成为真空,导致形成第一排气压力,干扰废气的排放。 During this process, there has been such a phenomenon that the exhaust gas is reintroduced into the cylinder, an exhaust manifold whereby a vacuum immediately, resulting in formation of a first exhaust pressure, exhaust emissions interference.

此外,在作为空气净化器的三元催化净化器中,废气流速如此显著地降低,以致于当废气通过HoneyCom型废气净化器的细孔时,产生第二排气压力,同时当废气穿过用于把消声器分为多个隔间的间隔件时,产生第三排气压力,从而声音被消声器吸收。 Further, three-way catalytic converter as an air purifier, the exhaust gas flow rate thus significantly reduced, so that when the gas passes through the pores HoneyCom type exhaust gas purifier, producing a second exhaust pressure, while when the exhaust gas passes through a when in the muffler into a plurality of compartments of spacers, generating a third exhaust pressure, so that the sound is absorbed muffler. 在此排气过程中,由于废气以3到5公斤/厘米的压力以及在大约600摄氏度下排放,因此消声器是必要的。 In this process the exhaust gas, and since the discharge pressure of the exhaust gas 3 to 5 kg / cm at about 600 degrees Celsius, and therefore the muffler is necessary. 该消声器设计成是发动机容积的十五到二十倍。 The muffler is designed to be fifteen to twenty times the volume of the engine. 由于具有空气阻力导致废气不能穿过消声器排放,因此发动机扭矩减少了百分之五到十。 Because air resistance can not pass through the muffler leads the exhaust emission, so that the engine torque is reduced by five to ten percent.

这样,可以理解的是,仅通过更有效地排放废气就可提高发动机的扭矩和燃料效率。 Thus, it is understood that only can improve torque and fuel efficiency of the engine by the exhaust gas more efficiently.

为了更有效地排放废气,已经提出了各种方法。 In order to more effectively discharge the exhaust gas, various methods have been proposed.

第2000-56951号韩国专利申请公开文件提出了利用当行驶车辆时产生的空气流的车辆排放管。 Korean Patent Application No. 2000-56951 publication proposes the use of air generated by the vehicle when driving the vehicle exhaust pipe flow. 在该排放管中,排放管的流线体与尾管结合,从而通过迅速穿过流线体的空气流而形成低压区,而由于低压而废气迅速地被吸到排放管内,以辅助废气排放。 In the discharge pipe, the streamlined body and the tail pipe of the discharge pipe combined, thereby to form a low pressure region by air stream rapidly passing through the streamline body and the exhaust gas due to the low pressure is rapidly sucked into the exhaust pipe, the exhaust emission to assist .

然而,传统的车辆排放容器安装到车辆时太大并且复杂。 However, the conventional vehicle emissions and too complicated when the container is mounted to the vehicle. 此外,由于当车辆停止或者在低速行驶时不能产生空气流,因此狭窄的排气通路反而干扰废气排放。 Further, since the vehicle is stopped or not when the air flow is generated at low speeds, but so narrow exhaust passage interference emissions. 这样就难以使传统排放管付诸于实际应用。 This makes it difficult to make the conventional discharge tube put into practical use.

根据在第1998-75223号韩国专利申请文件中公开的具有旋涡发生器的主消音器的尾管,涡流叶片设置在尾管的中间区段,以通过利用废气而旋转,从而涡流叶片在废气作用下旋转,以产生涡流并排放废气。 The tail pipe, swirl vanes disposed disclosed in Korean Patent Application No. 1998-75223 documents main silencer having a vortex generator in the intermediate section of the tail pipe to be rotated by utilizing the exhaust gas, whereby the exhaust gas swirl vanes action rotating, and exhaust gas to produce a vortex. 然而,由于此结构反而产生阻力并干扰废气流而实际上难以使用此结构。 However, since this structure in fact have resistance to the exhaust gas flow and disturb fact difficult to use this configuration.

根据在第99434号韩国注册的实用新型中公开的车辆废气排放装置,通过螺钉把管道固定到尾管端部,而在径向,用于产生涡流的多个叶片形成在管道的内圆周上,从而废气转换为涡流,以提高排放效率。 Disclosure vehicle emission device disclosed in Korean Registered No. 99434 according to the pipe by a screw secured to the tail pipe end portion, in the radial direction, a plurality of blades for generating vortex are formed in the inner circumference of the pipes, whereby the exhaust gas is converted into vortex to improve the discharge efficiency. 然而,把废气形成涡流的结构不足以迅速和平稳地排放废气,由于排放压力的原因,它的效果不明显,除了自然排放外,只部分地辅助形成排放涡流,因此效率非常低。 However, the exhaust gas is insufficient to form a vortex structure quickly and smoothly emissions, due to the discharge pressure, its effect is not obvious, in addition to natural emissions, is formed only partially discharging the auxiliary vortex, the efficiency is very low.

此外,根据在第257874号韩国专利文件中公开的利用涡流的废气排放装置,涡流产生管道设置在安装在废气路径上的消声器前部管道上,并包括用于引入外界空气并形成涡流的叶片,而分管道包括阀门,阀门开启程度与节流阀的开启程度成比例。 In addition, exhaust system No. 257,874 Korean Patent documents using the disclosed swirl according vortex generating duct is provided on the front silencer mounted on the exhaust path of the conduit, and comprising means for introducing ambient air and form a blade vortices, and the sub-duct includes a valve, the valve opening degree proportional to the opening degree of the throttle valve.

然而,由于穿过其中而引入外界空气的管道安装在除去排气噪声的消声器前部管道上,因此排气噪声形成在管道上,从而噪音较大。 However, since the outside air introduced therethrough duct mounted on a front muffler pipe portion of the exhaust noise is removed, so the exhaust noise in the duct is formed so noisy. 当加速时阀门开启程度较大,从而排气噪声较大。 When the valve opening degree of acceleration is large, so that the exhaust noise is large. 此外,由于废气排放到比消声器内部具有较低空气阻力的分管道上,引入空气与阻力相遇,从而废气排放装置难以实现实际用途。 Further, since the charge to track emissions having a lower air resistance than inside the muffler, and the air is introduced encounter resistance to the exhaust system is difficult to achieve practical use.

根据传统的废气排放装置,由于外界空气被引入消声器的入口,在该消声器中保留有空气阻力,此效应对于迅速排放废气而没用的。 According to a conventional exhaust system, since the outside air is introduced into the inlet of the muffler, the muffler retains air resistance, this effect for the exhaust gas and quickly useless. 由于设置了与发动机节流阀协同操作的外界空气调节风门,因此导致排放装置的结构及其制造设备复杂。 Since the outside air is provided with co-operating engine throttle damper, thus resulting in a complicated structure and discharge device manufacturing apparatus. 由于外界空气引入并穿过消声器,例如灰尘、沙子等等包含在外界空气中的异物聚集在消声器中,从而消声器性能降低。 Since the outside air is introduced and passes through the muffler, such as dust, sand and the like foreign matters contained in the ambient air is accumulated in the muffler, thereby reducing the performance of the muffler.

本发明的申请人已经在韩国知识产权局(KIPO)提交了车辆的废气排放装置的第2002-13963号韩国专利申请以及第287763号韩国实用新型申请。 Korean Patent Application No. 2002-13963 present applicant has filed a vehicle in the Korean Intellectual Property Office (KIPO), and exhaust emission apparatus No. 287,763 Korean Utility Model Application.

所有前者专利申请和后者实用新型申请均公开了这样一种车辆消声器,其中当车辆行驶时产生的外界空气通过喇叭状管道被压缩,以增加排放尾管的排气压力,从而流速增加。 All the former patent applications and the latter utility model applications disclose a muffler of a vehicle, wherein ambient air generated when the vehicle is traveling is compressed by the flared pipe to increase exhaust pressure of exhaust tail pipe, thereby increasing the flow rate.

换句话说,外界空气被浓缩以增加穿过较小横截面的空气的压力,从而在排气管中废气被迅速地排放。 In other words, the external air is concentrated to increase the pressure of air passing through the smaller cross-section, so that the exhaust gas is rapidly discharged in the exhaust pipe.

这些传统装置具有增加废气流速以提高扭矩和燃料效率的一些优点,然而当车辆停止或者在低速行驶时效果微不足道。 These conventional devices have an increased flow rate of the exhaust gas to improve torque and fuel efficiency advantages, but insignificant effect when the vehicle is stopped or at low speeds.

此外,如在第2004-13721号韩国专利申请中公开的那样,本申请人已经提出两个固定叶片从朝向尾管侧的弯曲部上切去,并彼此隔开,从而产生快速排放废气流,而在阀门重叠期间再引入的外界空气排放到叶片以增加发动机的扭矩。 Further, as disclosed in the Korean Patent Application No. 2004-13721, the present applicant has proposed two stationary blades cut from the curved portion toward the side of the tail pipe, and spaced apart from each other, resulting in rapid flow of exhaust gas, while the outside air is introduced during the valve overlap is discharged again to the blade to increase torque of the engine.

本发明提出对在第2004-13721号韩国专利申请中公开的装置进行改进,以获得改进的效果。 The present invention provides for the device disclosed in Korean Patent Application No. 2004-13721 are improved, in order to obtain improved results.

发明内容 SUMMARY

技术问题因此,针对以上问题以及针对改进由本发明申请人提交的相关装置以及它们的效率提出本发明,同时本发明的一个目的是提供车辆的废气排放装置,其中穿过消声器尾管排放的废气产生射流,利用文氏管现象增加废气的排放速度,而引入的外界空气被循环和排放,以增加排放速度,从而废气被迅速地排放。 Technical Problem Accordingly, the present invention addresses the above problems and related apparatus for improving filed by the applicant of the present invention and their efficiency, and it is an object of the present invention is to provide a vehicle exhaust system, wherein through the exhaust gas pipe discharge muffler tail produced jet, using a venturi phenomenon increases the discharge rate of the exhaust gas, and the introduced outside air is circulated and discharged to increase the discharge rate, so that the exhaust gas is rapidly discharged.

本发明的另一个目的是提供一种这样的车辆废气排放装置,其中该废气排放装置用于迅速地排放废气,并对再引入的废气排放到尾管的中间区段,从而阻止了使废气被再次引入到发动机内的阀门重叠,同时发动机的扭矩增加。 Another object of the present invention is to provide such a vehicle exhaust system, wherein the means for rapidly discharging exhaust emissions, and exhaust gas reintroduced to the intermediate section of the tail pipe, thereby preventing the exhaust gas is reintroduced into the valve overlap in the engine, while increasing the torque of the engine.

本发明的还一个目的是提供一种这样的车辆废气排放装置,其中该废气排放装置具有坚固的结构,以显著地增加耐久性,并当应用于没有改变传统消声器结构的发动机上时具有良好的兼容性。 Still another object of the present invention is to provide such a vehicle exhaust system, wherein the exhaust system has a robust structure, to significantly increase the durability, and when applied to the conventional engine muffler structure having good no change compatibility.

本发明的再一个目的是提供一种这样的车辆废气排放装置,其中该装置用于显著地降低废气的再引入,以阻止例如碳的燃烧后物质聚集在其中,从而发动机的寿命延长,同时例如昂贵废气净化器的排气系统各种元件可保持清洁。 A further object of the present invention is to provide such a vehicle exhaust system, wherein the means for significantly reducing re-introduced exhaust gas, for example, to prevent the combustion of carbon material aggregated therein, thereby extended the life of the engine, while e.g. expensive exhaust gas purifier in the exhaust system of the various elements can be kept clean.

技术方案根据发明的一个方面,上述和其他方面可通过提供这样一种车辆的废气排放装置而实现,其中该装置包括:第一和第二固定叶片,这些叶片通过切割尾管的侧部而形成流线形,其中尾管设置在消声器的废气排放路径上,从车辆发动机排放的废气穿过该废气排放路径,该固定叶片向内弯曲,并彼此隔开以彼此相对;以及循环废气排放装置,该装置具有管道主体,该主体焊接到尾管上,并与第一和第二固定叶片连通,以把第一和第二固定叶片与外界空气密封隔离。 Technical Solution In accordance with one aspect of the invention, the above and other aspects can be achieved by providing a vehicle exhaust system, wherein the apparatus comprises: a first and second fixed vanes formed by cutting the side portions of the tail pipe streamlined, wherein the tail pipe is provided in the exhaust gas discharge path muffler, exhaust from the vehicle engine emissions through the exhaust gas discharge path, the stationary blade is bent inwardly and spaced apart from each other opposite to each other; and a circulation exhaust gas discharge device, the device has a pipe body, the body welded to the tail pipe and communicated with the first and second fixed vanes to the first and second fixed blade and is sealed from the outside air.

有益效果如上所述,根据本发明的废气排放装置,废气穿过其中废气被排放的消声器尾管排放,由于该废气排放速度增加,同时外界空气被迅速地引入,从而废气被迅速地排放,因此车辆被有效地加速,同时车辆的爬坡性能也得到提高。 Advantageous Effects As described above, the exhaust gas discharge device according to the present invention, an exhaust gas pipe through which exhaust gas is discharged discharge muffler tail, since the emission speed increases, while the outside air is rapidly introduced, so that the exhaust gas is rapidly discharged, and therefore the vehicle is effectively accelerated, while climbing performance of the vehicle is also enhanced. 由于废气被迅速地排放,而引入的外界空气在尾管中间区段循环并排放到外面,阻止了使废气被再引入到发动机内的阀门重叠,同时发动机的扭矩增加。 Since the exhaust gas is rapidly discharged, and the outside air is introduced in the middle of the tail pipe into the outer zone circulating side by side, it prevents the exhaust gas is reintroduced to the valve overlap in the engine, while increasing the torque of the engine. 结构简单并且坚固,其耐久性显著地增加,并在传统消声器结构没有改变情况下能够应用到车辆上,从而兼容性是良好的。 Simple and sturdy structure, durability significantly increased, and the case where no change can be applied to the vehicle structure in the conventional muffler, so that the compatibility is good. 此外,阻止了废气和例如碳的污染物被再次引入,从而发动机的寿命延长,同时例如排气系统排气净化器的各种部件保持清洁,而它们的寿命也得到延长。 Further, to prevent the contaminants such as carbon and the exhaust gas is introduced again, to extend the life of the engine, for example, while the various components of the exhaust gas purifier of the exhaust system clean, but also extend their life.

尽管已经针对车辆废气排放装置描述了本发明,然而本领域技术人员可以理解的是,本发明的废气排放装置可用于任何的内燃机消声器上,同时在附加权利要求书公开的本发明范围内,改型非常容易。 Having described the present invention is directed to a vehicle exhaust system, those skilled in the art will be appreciated that the exhaust gas discharge device according to the present invention may be used in any internal combustion engine muffler, while within the scope of the present invention, the appended claims disclosed, change type very easy.

附图说明 BRIEF DESCRIPTION

从以下结合附图的详细描述中,本发明的特征和其他优点将更加清楚地得到理解,其中在附图中:图1为示出了由本申请发明人提交的作为传统技术的车辆废气排放装置的剖视图;图2为示出了根据本发明优选实施例的车辆废气排放装置的剖视图;图3为示出了根据本发明另一个优选实施例的车辆废气排放装置的剖视图;以及图4为示出了根据本发明再一个优选实施例的车辆废气排放装置的剖视图。 From the following detailed description in conjunction with the drawings, other features and advantages of the invention will be more clearly understood, the accompanying drawings in which: FIG. 1 is a diagram illustrating a vehicle exhaust system submitted by the present inventor in a conventional technique the cross-sectional view; FIG. 2 is a diagram showing a cross-sectional view of a vehicle exhaust system of an embodiment of the present invention preferably; FIG. 3 is a diagram showing a cross-sectional view of the exhaust gas discharge device of a vehicle embodiment in accordance with another preferred embodiment of the invention; and Figure 4 is a diagram a cross sectional view of a further embodiment of the vehicle exhaust system according to the preferred embodiment of the present invention.

实现发明的最佳方式在下文中,将参考附图来详细描述根据本发明优选实施例的车辆的废气排放装置。 BEST MODE FOR CARRYING invention Hereinafter, the exhaust emission device for a vehicle according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

图2示出了根据本发明基本优选实施例的车辆的废气排放装置。 FIG. 2 shows a vehicle exhaust gas discharge device according to the basic embodiment of the preferred embodiment of the present invention.

根据本发明基本优选实施例的车辆废气排放装置包括第一和第二固定叶片30、40和循环废气排放装置50。 Vehicle exhaust system according to an embodiment of the present invention preferably comprises a basic and a second fixed vanes 30, 40 of the first cycle and the exhaust gas discharge device 50. 通过把形成在传统消声器10后端上的尾管20侧部切去而形成流线形固定叶片30、40,其中消声器10设置在废气排放路径上,从车辆发动机排放的废气穿过该废气排放路径,该固定叶片30、40向内弯曲,并彼此隔开以彼此相对;而循环废气排放装置50具有管道主体52,该主体焊接到尾管上,并与第一和第二固定叶片30、40连通,以把第一和第二固定叶片30、40与外界空气密封隔离。 Streamlined fixed vanes 30, 40 are formed by the side portion 20 of the tail pipe 10 is formed on the rear end of a conventional muffler cut, wherein the muffler 10 is provided in the exhaust gas discharge path, through which the exhaust emissions from vehicle exhaust emissions of the engine path, the stationary vanes 30, 40 are bent inwardly and spaced relative to each other to each other; circulated emission device 50 has a duct body 52, the body welded to the tail pipe, and the first and second fixed vanes 30, communication 40 to the first and second fixed vanes 30 and 40 are sealed from the outside air and.

被切去向内弯曲的第一和第二固定叶片30、40分别具有45度的最大弯曲角,并具有延伸到尾管20中心线的弯曲端部。 Is cut inwardly curved first and second fixed vanes 30 and 40 each have a maximum bending angle of 45 degrees, and having a curved end portion 20 extends into the tail pipe centerline.

下面详细描述根据本发明优选实施例的废气排放装置的操作。 Operation of the exhaust gas discharge device according to a preferred embodiment of the present invention is described in detail below.

当循环废气排放装置50用于尾管20时,当发动机启动时通过通常过程排放的废气送入消声器10,并在噪音在消声器膨胀室被吸收后排放到外面。 When the recirculated exhaust gas discharge means 50 for the tail pipe 20, when the engine starts into the muffler 10 through the process gas usually emitted, and the noise is absorbed into the outside of the rear muffler expansion chamber.

根据如图1所示的由本发明申请人提交的前者韩国专利申请的操作,由于第一固定叶片30的弯曲表面导致废气向下流动,并由于文氏管现象而迅速穿过较窄横截面。 The operation of FIG former Korean Patent Application filed by the applicant of the present invention shown in FIG 1, since the curved surface of the first stationary blade 30 leads the exhaust gas to flow downward, and due to the venturi phenomenon rapidly through a narrow cross-section. 废气与第二固定叶片40的弯曲表面冲撞而向上流动,而由于废气流速而导致产生射流。 The curved surface of the exhaust gas and the second stationary blade 40 flows upward by collision, and as the exhaust gas flow rate results in a jet. 这时,外界空气穿过第二固定叶片40的开口被引入到内部气流的高压侧,从而引入的外界空气被加速以进行快速排气。 In this case, the outside air passes through the high-pressure side opening of the second stationary blade 40 is introduced into the interior gas stream, thereby introducing outside air is accelerated for rapid venting.

此时,在第一固定叶片30的开口,压力下降,而由发动机阀门重叠期间产生的废气回流现象而导致的回流穿过第一固定叶片30的开口排放到外界,从而废气的回流被去除,以阻止回流干扰排气系统通过消声器的排气性能。 At this time, the opening of the first stationary blade 30, the pressure drops, the exhaust gas recirculation flow phenomenon generated during the valve overlap caused by the engine through the first opening 30 of the fixed vane discharged to the outside, so that the exhaust gas reflux is removed, to prevent interference of the exhaust system through an exhaust reflux muffler performance.

如上所述,穿过尾管20的废气穿过第一和第二固定叶片30、40,其中这些叶片的直径变狭窄,而由于文氏管现象同时导致流速迅速变大,废气流形成射流,并被加速,从而废气迅速排放。 As described above, the exhaust gas passing through the tail pipe 20 through the first and second fixed vanes 30 and 40, wherein the diameter of the blades is narrowed, and since the venturi phenomenon while causing rapid flow rate becomes large, the exhaust gas jet flow is formed, and are accelerated to quickly emissions. 在非常短时间内重复引起发动机阀门重叠期间,由于回流排放到作为第一固定叶片30的低压力区域的开口,从排气集管到消声器的区域立即在负压以下,从而燃料入口没有干扰。 During the very short period of time due to repeated engine valve overlap, due to the reflux discharge opening 30 as a first fixed blade low pressure region, from the exhaust manifold to the muffler of the negative pressure region immediately below the fuel inlet such that no interference.

在这里,在本发明中,由于循环废气排放装置用于使第一和第二固定叶片30、40互相连通并覆盖尾管20使其与外界空气密封,因此相反地,废气流增加并加速。 Here, in the present invention, the means for circulating an exhaust gas discharge the first and second fixed vanes 30 and 40 communicate with each other and covering the tail pipe 20 so that the seal from the outside air, conversely, to increase and accelerate the exhaust gas flow.

换句话说,由于第二固定叶片40比位于废气穿过其中排放的尾管20内侧的第一固定叶片30更接近外界环境,同时由于第一和第二固定叶片30、40形成在其中的管道主体通过循环废气排放装置管道主体52与外界环境密封隔离,因此废气在相反方向流动,正如上述韩国专利申请中公开的那样。 In other words, since the second fixed vane 40 wherein the ratio of the exhaust gas through the exhaust tail pipe 20 inside the first fixed vane 30 is closer to the external environment, and because the first and second fixed vanes 30 and 40 formed therein duct body by circulating exhaust gas discharge conduit 52 and the main body is sealed from the external environment, and therefore the exhaust gas flow in the opposite direction, as disclosed in the aforementioned Korean Patent application above.

这样,废气流的加速与以上描述的韩国专利申请中的相同,然而,在发动机阀门重叠期间外界空气的引入和废气流被颠倒。 Thus, Korean Patent Application accelerated exhaust gas stream with the above described are the same, however, the introduction of ambient air and the exhaust gas flow is reversed during engine valve overlap. 外界空气的引入通过第二固定叶片40进行,而由于通过文氏管现象产生的低压力区,引入的外界空气穿过第一固定叶片30,并用来使废气的排放速度加速。 Outside air is introduced through the second fixed vane 40, but due to the low pressure region generated by the venturi phenomenon, outside air is introduced through the first fixed vane 30, and to accelerate the discharge rate of the exhaust gas.

因此,由于出现推拉反应,即由于第一固定叶片30的较低压力导致引入外界空气,从而朝第二固定叶片40引入的高压气流朝第一固定叶片加速并向外排放,因此废气比在上述韩国专利申请公开的情况中更迅速地排放。 Accordingly, since the sliding reaction occurs, i.e., due to the lower pressure in the first stationary blade 30 result in the introduction of the outside air, and to accelerate outwardly to discharge high-pressure air introduced into the second fixed vane 40 toward the first stationary blade, so the above ratio of the exhaust gas emissions more rapidly the situation disclosed in the Korean Patent application.

因此,废气穿过在其中废气被排放的消声器更迅速地排放。 Thus, the exhaust gas passes through a muffler wherein the exhaust gas is discharged more quickly discharged. 同时地,在发动机阀门重叠期间,在循环废气排放装置50中,废气的回流被引入和排放,并直接排放到尾管外面,从而该回流不干扰废气流。 Meanwhile, during the valve overlap of the engine, the exhaust emission in the circulation device 50, exhaust gas recirculation is introduced and discharged, and is discharged directly to the outside of the tail pipe, so that the exhaust gas flow does not interfere with reflux. 由于废气被平稳地排放,因此发动机的扭矩增加,而且还节省了燃料。 Since the exhaust gas is smoothly discharged, and therefore the engine torque is increased, but also saves fuel. 此外,在燃料燃烧期间产生的滞留在排放系统中的异物被有效地排放,从而排放系统的昂贵元件得到保护,以及它们的寿命得到延长。 Furthermore, retention in the exhaust system, foreign matter generated during combustion of the fuel is effectively discharged, so that expensive components of the exhaust system are protected and their life extended.

发明模式如上所述构造的废气排放装置可如图3和4所示进行改型。 Mode for the Invention exhaust gas discharge device constructed as described above and shown in Figure 3 can be modified 4. 换句话说,如图3所示,废气排放装置包括多个尾管,在其中循环废气排放装置50相应地包括上述第一和第二固定叶片30、40形成在其中的尾管20和用于围绕该固定叶片30、40的管道主体52,并以相互并联关系连接到消声器的排气侧。 In other words, as shown in FIG. 3, the exhaust system comprises a plurality of tail pipes, in which circulation exhaust gas discharge means 50 respectively comprise said first and second fixed vanes 30 and 40 formed therein and a tail pipe 20 around the pipe body 30, 40 of the fixed blade 52, and is connected in a parallel relationship to the side of the exhaust muffler. 这样,废气排放装置的横截面增加,从而废气平稳地排放,而该废气排放装置的外形可改进。 Thus, the cross section of the exhaust system increases, so that the exhaust gas smoothly discharged, while the shape of the exhaust system can be improved.

如图4所示,废气排放装置包括循环废气排放装置50,其中该循环废气排放装置50包括第一和第二固定叶片30、40形成在其中的尾管20和用于围绕固定叶片30、40的管道主体52,并且通过夹持件54与消声器10的排气侧联接。 As illustrated, the exhaust system 50 includes a circulation exhaust gas discharge device, wherein the circulation exhaust gas discharge device 50 comprises first and second fixed vanes 30 and 40 4 formed therein for surrounding the tail pipe 20 and the stationary blade 30, 40 the duct body 52, and the exhaust-side coupling member 54 by the clamp 10 and the muffler. 废气排放装置容易联接到传统的车辆废气排放装置的端部。 Easily coupled to the exhaust system of an end portion of a conventional exhaust gas discharge device of the vehicle.

根据应用于车辆的本发明循环废气排放装置的测试,当压力计安装在具有大约1500立方厘米发动机容积的车辆的排气集管出口以及测量排气压力时,在大约2,500每分钟转数下测量为0.5KPs最大值排气压力。 The test cycle applied to a vehicle exhaust discharge device of the present invention, when the exhaust gas pressure gauge mounted in a vehicle having a set of about 1500 cm3 volume of the engine exhaust pressure and a measuring tube outlet, measured at about 2,500 revolutions per minute the maximum exhaust gas pressure is 0.5KPs. 同时,当在没有应用该循环废气排放装置来进行相同测试时,测量的最大排气压力为1KPs。 Meanwhile, when the circulation in the exhaust system is not applied to the same test, the maximum exhaust pressure is measured 1KPs. 这样,当应用本发明的该循环废气排放装置时最大排气压力减少一半,于是可以肯定的是废气已经有效地排放。 Thus, when the recirculated exhaust gas discharge device according to the present invention is applied to the maximum exhaust pressure is reduced by half, then it is certain that the exhaust gas has been effectively discharged.

本发明的循环废气排放装置可设计成管道主体被粘接或者焊接以与第一和第二固定叶片互相连通。 Circulating exhaust gas discharge device according to the present invention can be designed into a pipe body are bonded or welded to communicate with each other with the first and second fixed vanes. 循环废气排放装置的内体积没有明显地考虑,但足以使两个固定叶片互相连通,导致形成空气流。 The volume of recirculated exhaust gas discharge apparatus is not considered significant, but sufficient to two fixed vanes are interconnected, resulting in an air flow.

Claims (3)

1.一种车辆的废气排放装置,包括:第一和第二固定叶片(30和40),这些叶片通过切割尾管(20)的侧部而形成流线形,其中尾管(20)设置在消声器(10)的废气排放路径上,从车辆发动机排放的废气穿过该废气排放路径,该固定叶片(30和40)向内弯曲,并彼此隔开以彼此相对;以及循环废气排放装置(50),该装置具有管道主体(52),该主体焊接到尾管上,并与第一和第二固定叶片(30和40)连通,以把第一和第二固定叶片(30和40)与外界空气密封隔离。 Emission device for a vehicle, comprising: first and second fixed vanes (30 and 40), streamlined blades are formed by cutting the side portions of the tail pipe (20), wherein the tail pipe (20) is provided silencer in the exhaust gas discharge path (10) from the exhaust emissions from the engine of the vehicle through which the exhaust gas discharge path, the stationary blades (30 and 40) are bent inwardly and spaced relative to each other to each other; and a circulation exhaust gas discharge device ( 50), the apparatus having a duct body (52), the body welded to the tail pipe and communicated with the first and second fixed vanes (30 and 40), to the first and second fixed vanes (30 and 40) sealed from the outside air.
2.如权利要求1所述的车辆废气排放装置,还包括多个尾管,其中循环废气排放装置(50)分别包括:其中形成有第一和第二固定叶片(30和40)的尾管(20),以及用于围绕该固定叶片(30和40)的管道主体(52),并以相互并联关系连接到消声器的排气侧。 The vehicle exhaust system according to claim 1, further comprising a plurality of tail pipes, in which circulation exhaust gas discharge device (50), respectively, comprising: first and second formed therein fixed vanes (30 and 40) of the tail pipe (20), and an exhaust duct for the body side (52) surrounding the fixed vanes (30 and 40), and connected in parallel relationship to the muffler.
3.如权利要求1所述的车辆废气排放装置,其中循环废气排放装置(50)包括其中形成有第一和第二固定叶片(30和40)的尾管(20)以及用于围绕固定叶片(30和40)的管道主体(52),并且循环废气排放装置(50)通过夹持件(54)与消声器(10)的排气侧联接。 3. A vehicle exhaust system as claimed in claim 1, wherein the circulation exhaust gas discharge device (50) formed therein including a first and second fixed vanes (30 and 40) of the tail pipe (20) and a surrounding stationary blade (30 and 40) of the duct body (52), and the circulation exhaust gas discharge device (50) by clamping the exhaust-side coupling member (54) and the muffler (10).
CN 200580036840 2004-10-29 2005-10-28 Exhaust for automobile CN100554659C (en)

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