The utility model belongs to the technical field of automobile product development power assembly, in particular to a vertical intake pipe with a throat muffler. The utility model is characterized in that: the utility model comprises an air inlet grille, a conduit body, a Helmholtz muffler, an embedded throat and an air outlet; the cross section of the conduit body is flat, the right side of the conduit body is provided with an air inlet grille, among which an air inlet main channel is provided with an air outlet at the bottom; the left side of the air inlet main channel is a resonance cavity of the Helmholtz muffler; the air inlet main channel is separated from the resonance cavity, wherein And is communicated by the embedded throat pipe and removed into the inner part of the resonant cavity. On the premise of meeting the requirements of air intake flow and air intake resistance of the whole vehicle, the utility model is embedded with a throat pipe in the Helmholtz muffler, and by adjusting the pipe diameter and length size of the built-in throat pipe, the single low-frequency air intake noise of the engine is eliminated, so as to change the silencing frequency and improve the transmission loss in the limited layout space, which has good silencing performance and improves the NVH level of the whole vehicle.
【技术实现步骤摘要】
一种带喉管消声器的竖直进气导管
本技术属于汽车产品开发动力总成
,具体涉及一种带喉管消声器的竖直进气导管。
技术介绍
目前市场大部分卡车为后置高位进气,进气口布置在驾驶室后部的竖直进气导管上,且车辆的进气消声器中广泛采用有赫尔姆兹谐振消声机构,该机构包括供气体流过的进气流道、与进气流道连通的连通管以及与连通管相连的谐振腔,气体在进气流道运动时,连通管内的气体在声波的压力下像活塞一样往复运动,当其频率与谐振腔频率相同时,会产生共振,达到消声目的,赫尔姆兹谐振消声机构能够消除低频噪音。影响赫姆霍兹消声器消声频率和传递损失的参数有消声器的本体容积、连通管的长度、连通管道截面面积和主管道的截面面积。在有限布置空间的情况下,消声器的本体容积和主管道的截面积因布置空间不能无限加大,进而导致赫姆霍兹消声器消声频率和传递损失的适用范围窄小。
技术实现思路
本技术在满足整车进气流量及进气阻力需求的前提下,在赫姆霍兹消声器内嵌喉管,并通过调整内置喉管的管径和长度尺寸,消除发动机单一低频进气噪声,达到在有限布置空间内改变消音 ...
【技术保护点】
1.一种带喉管消声器的竖直进气导管,其特征在于:包括进气格栅(1),导管本体(2),赫姆霍兹消声器(3),内嵌喉管(4)和出气口(6);所述导管本体(2)截面为扁平状,其右侧设置进气格栅(1),其中间为进气主通道,其底部设置出气口(6);所述进气主通道左侧为赫姆霍兹消声器(3)的谐振腔;所述进气主通道与所述谐振腔隔开,中间由所述内嵌喉管(4)连通并拆入所述谐振腔内部。/n
【技术特征摘要】
1.一种带喉管消声器的竖直进气导管,其特征在于:包括进气格栅(1),导管本体(2),赫姆霍兹消声器(3),内嵌喉管(4)和出气口(6);所述导管本体(2)截面为扁平状,其右侧设置进气格栅(1),其中间为进气主通道,其底部设置出气口(6);所述进气主通道左侧为赫姆霍兹消声器(3)的谐振腔;所述进气主通道与所述谐振腔隔开,中间由所述内嵌喉管(4)连通并拆入所述谐振腔内部。
2.根据权利要求1所述的一种带喉管消声器的竖直进气导管,其...
【专利技术属性】
技术研发人员:蔡青,陈国进,王艳君,刘汉青,
申请(专利权)人:江铃汽车股份有限公司,
类型:新型
国别省市:江西;36
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