CN201794690U - Gas inlet pipe of diesel engine - Google Patents

Gas inlet pipe of diesel engine Download PDF

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Publication number
CN201794690U
CN201794690U CN2010205190885U CN201020519088U CN201794690U CN 201794690 U CN201794690 U CN 201794690U CN 2010205190885 U CN2010205190885 U CN 2010205190885U CN 201020519088 U CN201020519088 U CN 201020519088U CN 201794690 U CN201794690 U CN 201794690U
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CN
China
Prior art keywords
gas inlet
intake
pipe
intake manifold
header pipe
Prior art date
Application number
CN2010205190885U
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Chinese (zh)
Inventor
张媛
薛锦飞
邹义明
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安徽全柴动力股份有限公司
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Priority to CN2010205190885U priority Critical patent/CN201794690U/en
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Publication of CN201794690U publication Critical patent/CN201794690U/en

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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/14Technologies for the improvement of mechanical efficiency of a conventional ICE
    • Y02T10/146Charge mixing enhancing outside the combustion chamber

Abstract

The utility model relates to an air inlet pipe of a diesel engine, which comprises a gas inlet header pipe and a gas inlet connecting pipe, wherein the gas inlet header pipe is communicated with the gas inlet connecting pipe through a flange connecting port; four vortex gas inlet manifolds are uniformly arranged in the gas inlet header pipe; and an exhaust gas recirculation valve mounting seat is arranged in the middle of the gas inlet connecting pipe, so that exhaust gas from an exhaust gas recirculation (EGR) valve can be sufficiently mixed with fresh air before entering the gas inlet header pipe, the gas inlet uniformity can be ensured and the aims of improving the emission can be achieved. The inside diameter of the gas inlet header pipe is 50-52mm, so that the gas has a constant gas inlet pressure before entering a combustion chamber, the fluctuation of the gas inlet pressure can be avoided and the uniformity of the gas inlet amount of each cylinder can be ensured. The gas inlet of each vortex gas inlet manifold on the gas inlet header pipe is rectangular, so that the inflation efficiency of each cylinder can be improved.

Description

一种柴油机进气管 A diesel intake pipe

技术领域 FIELD

[0001] 本实用新型属于内燃机技术领域,具体涉及一种柴油机进气管。 [0001] The present invention belongs to the technical field of internal combustion engines, particularly to a diesel engine intake pipe. 背景技术 Background technique

[0002] 为了满足国家对柴油机欧III排放及欧IV排放甚至以及欧V等更加严格的排放法规的要求,采用新技术、新工艺压铸成型,表面光滑无需清砂,降低进气阻力,使各缸的进气均勻,从而达到降低排放的目的。 [0002] In order to meet national requirements for diesel Euro III and Euro IV emission even and Euro V et more stringent emission regulations, use of new technologies, new processes of casting, smooth surface without sand, to reduce intake resistance, the respective the cylinder intake air uniformly, so as to achieve the purpose of reducing emissions. 而传统进气管的设计一般均为铸铁件,并浇铸成一体,采用这种一体结构存在如下问题:脱模不方便,清砂困难,加工成本高,而且铸铁不仅重量大,还易生锈,最主要的是充气效率低,各缸进气不均勻,难以满足日益严格的排放要求。 The traditional design of the intake pipe are typically cast iron, and cast integral, unitary structure using the presence of such a problem: the release inconvenient, difficult sand, high processing costs and large weight not only iron, but also rust, the main charging efficiency is low, the intake of each cylinder uneven, they are difficult to meet increasingly stringent emissions requirements.

实用新型内容 SUMMARY

[0003] 为了解决充气效率低,各缸进气的不均勻性以及废气中NOxW含量等问题,本实用新型提供一种新结构柴油机进气管。 [0003] In order to solve the low charging efficiency of intake air in each cylinder, and the exhaust gas non-uniformity problem NOxW content, etc., the present invention provides a new structure of a diesel engine intake pipe.

[0004] 具体的结构改进技术方案如下: [0004] The specific configuration improved technical solutions as follows:

[0005] 一种柴油机的进气管包括进气总管2和进气接管1,进气总管2与进气接管1通过法兰连接口相连通,进气总管2内均布设有四个涡旋状进气歧管,所述进气接管1中部安装有废气再循环阀安装座1-1,进气总管的内径为50-52mm;进气总管2上的每个涡旋状进气歧管的进气口2-3形状为矩形。 [0005] An intake pipe of a diesel engine 2 includes an intake manifold and the intake connecting piece 1, the intake manifold 2 and an inlet connection flange connection port communicates via the intake manifold 2 there are four spiral laid an intake manifold, the intake connecting piece 1 is attached to the middle of the EGR valve mounting seat 1-1, the intake manifold of an internal diameter of 50-52mm; each spirally wound on the intake manifold 2 of the intake manifold 2-3 intake port is rectangular in shape.

[0006] 所述进气总管2上的每个涡旋状进气歧管的矩形进气口2-3尺寸为34x40mm。 [0006] The intake manifold 2 each rectangular spiral intake manifold of an intake port 2-3 size 34x40mm.

[0007] 本实用新型将废气再循环(EGR)阀安装座1-1安装于进气接管1中间部位, 从而使来自于废气再循环(EGR)阀的废气在进入进气总管2之前,能够充分地与新鲜空气混合,保证了每缸的进气均勻性,达到改善排放的目的。 [0007] The present invention is an exhaust gas recirculation (EGR) valve 1-1 is mounted on the mount intermediate intake connecting portion 1, so that the exhaust gas from the exhaust gas recirculation (EGR) valve prior to entering the intake manifold 2, can be sufficiently mixed with the fresh air, to ensure the uniformity of each cylinder intake air to achieve the purpose of improving emissions. 进气总管2的内径为50-52mm,使气体在进入燃烧室前,有一个恒定的进气压力,避免了进气压力的波动, 保证了每缸进气量的均勻性。 The inner diameter of the intake manifold 2 is 50-52mm, the gas before entering the combustion chamber, there is a constant intake pressure, to avoid the intake pressure fluctuations, to ensure the uniformity of the intake air amount per cylinder. 每缸具有一个34x40mm矩形进气歧管口2-3,它一端与进气总管相连通,另一端分别与气缸盖上的螺旋进气道相连,提高各缸的充气效率。 Each cylinder has a rectangular 34x40mm intake manifold port 2-3, one end of which communicates with the intake manifold, cylinder head and the other end is connected to helical intake port, improving the filling efficiency of each cylinder.

附图说明 BRIEF DESCRIPTION

[0008] 图1为本实用新型结构示意图。 [0008] Figure 1 is a schematic view of practical new structure. 具体实施方式 Detailed ways

[0009] 下面结合附图,通过实施例对本实用新型作进一步地说明。 [0009] DRAWINGS by examples further illustrate embodiments of the present invention is made.

[0010] 实施例: [0010] Example:

[0011] 一种柴油机的进气管包括进气总管2和进气接管1,进气总管2与进气接管1通过接管法兰连接口1-2和总管法兰连接口2-2相连通。 [0011] An intake pipe of a diesel engine 2 includes an intake manifold and the intake connecting piece 1, 2 and the intake manifold inlet connection flange 1 via the piping manifold ports 1-2 and 2-2 are connected through the flange opening. 进气总管2上均布设有两个高压共轨安装座2-1,进气总管2内均布设有四个涡旋状进气歧管。 The intake manifold 2 there are laid two common rail mounts 2-1, the intake manifold 2 there are four spiral-shaped layout of the intake manifold. 所述进气接管1中部安装有废气再循环阀安装座1-1,进气接管的内径为50-52mm;进气总管2上的每个涡旋状进气歧管的进气口2-3形状为矩形,矩形进气口2-3的尺寸为34x40mm。 The middle of the intake connecting piece 1 is attached to the EGR valve mounting seat 1-1, the inner diameter of the inlet connection is 50-52mm; scroll-shaped intake port of each of the intake manifold in the intake manifold 22- 3 is rectangular in shape, a rectangular inlet size 2-3 of 34x40mm. [0012] 使用时,根据不同工况下废气再循环(EGR)阀的开启与关闭是废气和新鲜空气充分混合后,进入进气总管2是进气压力保持稳定,然后通过进气歧管2-3进入燃烧室, 从而保证各缸进气的均勻性,实现降低排放的目的。 [0012] When used, depending on the open and closed conditions exhaust gas recirculation (EGR) valve in the exhaust and fresh air is mixed into the intake manifold 2 is the intake pressure remains stable, then the intake manifold 2 -3 enters the combustion chamber, thus ensuring uniformity of each cylinder intake air to achieve the purpose of reducing emissions.

Claims (2)

1. 一种柴油机进气管,包括进气总管(2)和进气接管(1),进气总管(2)与进气接管(1)通过法兰连接口相连通,进气总管(2)内均布设有四个涡旋状进气歧管,其特征在于:所述进气接管(1)中部安装有废气再循环阀安装座(1-1),进气总管的内径为50-52mm ;进气总管(2)上的每个涡旋状进气歧管的进气口(2_3)形状为矩形。 A diesel engine intake pipe, comprising an intake manifold (2) and an intake nozzle (1), an intake manifold (2) with an intake nozzle (1) communicating through a port flange, an intake manifold (2) there are four inner spiral laid intake manifold, wherein: the intake nozzle (1) is attached to the middle of the EGR valve mounting seat (1-1), the intake manifold of an internal diameter of 50-52mm ; the intake manifold (2) each spiral intake port (2_3) of the intake manifold is rectangular.
2.根据权利要求1所述的一种柴油机进气管,其特征在于:所述进气总管(2)上的每个涡旋状进气歧管的矩形进气口(2-3)尺寸为34x40mm。 The a diesel intake pipe according to claim 1, wherein: said rectangular intake port on the intake manifold (2) each spiral intake manifold (2-3) size 34x40mm.
CN2010205190885U 2010-09-02 2010-09-02 Gas inlet pipe of diesel engine CN201794690U (en)

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CN2010205190885U CN201794690U (en) 2010-09-02 2010-09-02 Gas inlet pipe of diesel engine

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103437922A (en) * 2013-07-16 2013-12-11 东风朝阳朝柴动力有限公司 Optimization device for intake pipe of diesel engine
CN103742297A (en) * 2013-12-13 2014-04-23 潍柴动力股份有限公司 Engine, EGR system of engine and exhaust manifold of EGR system
CN103758665A (en) * 2013-12-31 2014-04-30 广西玉柴机器股份有限公司 Arrangement structure of electric control EGR (Exhaust Gas Recirculation) system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103437922A (en) * 2013-07-16 2013-12-11 东风朝阳朝柴动力有限公司 Optimization device for intake pipe of diesel engine
CN103742297A (en) * 2013-12-13 2014-04-23 潍柴动力股份有限公司 Engine, EGR system of engine and exhaust manifold of EGR system
CN103758665A (en) * 2013-12-31 2014-04-30 广西玉柴机器股份有限公司 Arrangement structure of electric control EGR (Exhaust Gas Recirculation) system

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