CN202250501U - car engine intake manifold - Google Patents

car engine intake manifold Download PDF

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CN202250501U
CN202250501U CN201120312799XU CN201120312799U CN202250501U CN 202250501 U CN202250501 U CN 202250501U CN 201120312799X U CN201120312799X U CN 201120312799XU CN 201120312799 U CN201120312799 U CN 201120312799U CN 202250501 U CN202250501 U CN 202250501U
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intake manifold
intake
manifold
elbow
pressure stabilizing
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王亮
黄寅桂
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Lifan Technology Group Co Ltd
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Lifan Industry Group Co Ltd
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    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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Abstract

The utility model discloses an automobile engine air intake manifold, the inlet manifold, pressure stabilizing cavity and inlet elbow communicate with each other in proper order, throttle valve mounting flange links to each other with the inlet manifold, cylinder cap mounting flange links to each other with the inlet elbow, be 123 ~ 128 contained angle between inlet manifold and the pressure stabilizing cavity, the hookup location department at inlet manifold and pressure stabilizing cavity is provided with the transition circular arc of R90 ~ R110mm, the interval of each inlet elbow in middle part position department is less than the interval at both ends, the length of each inlet elbow is 350 ~ 370mm, the internal diameter is 46 ~ 48mm, this inlet manifold's length size L is less than or equal to 1435mm, width size W is less than or equal to 1320mm, height size H is less than or equal to 200 mm. The utility model discloses guarantee that air intake manifold admits air smoothly, under the prerequisite of engine wholeness ability, provide a more compact, the lower automobile engine air intake manifold of cost of structure.

Description

汽车发动机进气歧管car engine intake manifold

技术领域 technical field

本实用新型涉及一种汽车构件,具体地讲,是一种用在汽车发动机上的进气歧管。 The utility model relates to an automobile component, in particular to an intake manifold used on an automobile engine.

背景技术 Background technique

 汽车发动机进气歧管安装在发动机缸头与节气门之间,一般由进气总管、稳压腔、进气弯管、节气门安装法兰和缸盖安装法兰构成。从进气总管进入的气流经稳压腔流入不同的进气弯管,进气弯管的数量与气缸的数量相等,分别为不同的气缸单独进气。传统结构中稳压腔与进气总管的夹角为130~135°,由于该夹角较小,气流从进气总管经稳压腔向进气弯管流动的过程中会产生急弯,使得气流不畅,从而影响气缸的充气效率,导致发动机性能较差;另外,进气弯管通常按梳形分布,各进气弯管的长短不一,而内径基本相等(均在40mm左右),致使各气缸的进气量不均匀,发动机振动及噪声大。 The intake manifold of the automobile engine is installed between the engine cylinder head and the throttle valve, and generally consists of an intake manifold, a pressure stabilizing chamber, an intake elbow, a throttle valve mounting flange and a cylinder head mounting flange. The airflow entering from the intake manifold passes through the plenum chamber and flows into different intake elbows. The number of intake elbows is equal to the number of cylinders, and different cylinders are fed separately. In the traditional structure, the included angle between the plenum chamber and the intake manifold is 130-135°. Due to the small angle, the airflow will produce a sharp bend in the process of flowing from the intake manifold through the plenum chamber to the intake elbow, so that the airflow Not smooth, thus affecting the charging efficiency of the cylinder, resulting in poor engine performance; in addition, the intake elbows are usually distributed in a comb shape, the lengths of each intake elbow are different, and the inner diameters are basically equal (all around 40mm), resulting in The intake air volume of each cylinder is uneven, and the engine vibration and noise are large.

国家知识产权局于2010年5月12日公开了一种“汽车发动机进气歧管”,公开号为 101705890A,该进气歧管对传统的进气歧管进行了改进,将稳压腔与进气总管的夹角增大到145~155°,有效地避免了气流流动过程中产生急弯,使得气流更加顺畅,提高了气缸的充气效率及发动机性能;另外,限定了各进气弯管的形状相同、长度相等,并将各进气歧管的长度调整到390~410mm,内径调整到34~37mm,以进一步提高气缸的充气效率,改善发动机的性能,降低了发动机的振动及噪声。但在使用过程中发现,虽然该进气歧管整体性能得到了显著地提高,但因为其外形尺寸较大、整体结构仍不够紧凑,所以常常受到车内安装空间的限制,且成本仍然较高。 The State Intellectual Property Office disclosed a kind of "automobile engine intake manifold" on May 12, 2010, and the publication number is 101705890A. The included angle of the intake manifold is increased to 145-155°, which effectively avoids sharp bends in the air flow process, makes the air flow smoother, improves the cylinder charging efficiency and engine performance; in addition, limits the angle of each intake elbow The shape is the same, the length is equal, and the length of each intake manifold is adjusted to 390-410mm, and the inner diameter is adjusted to 34-37mm to further improve the charging efficiency of the cylinder, improve the performance of the engine, and reduce the vibration and noise of the engine. However, in the process of use, it was found that although the overall performance of the intake manifold has been significantly improved, it is often limited by the installation space in the car because of its large size and insufficient overall structure, and the cost is still high .

实用新型内容 Utility model content

本实用新型的目的是在保证进气歧管进气顺畅、发动机整体性能的前提下,提供一种结构更为紧凑、成本更低的汽车发动机进气歧管。 The purpose of the utility model is to provide an automobile engine intake manifold with a more compact structure and lower cost under the premise of ensuring the smooth intake of the intake manifold and the overall performance of the engine.

为解决以上技术问题,本实用新型提供的一种汽车发动机进气歧管,包括进气总管(1)、稳压腔(2)、并排设置的多根进气弯管(3)、节气门安装法兰(4)、缸盖安装法兰(5),所述进气总管(1)、稳压腔(2)和进气弯管(3)依次相通,所述节气门安装法兰(4)与进气总管(1)相连,所述缸盖安装法兰(5)与进气弯管(3)相连,关键在于:所述进气总管(1)与稳压腔(2)之间呈123~128°的夹角,在进气总管(1)与稳压腔(2)的连接位置处设置有R90~R110mm的过渡圆弧,各进气弯管(3)在中部位置处的间距小于两端的间距,各进气弯管(3)的长度均为350~370mm,内径均为46~48mm,该进气歧管的长度尺寸L≤1435mm,宽度尺寸W≤1320mm,高度尺寸H≤200mm。 In order to solve the above technical problems, the utility model provides an intake manifold of an automobile engine, which includes an intake manifold (1), a pressure stabilizing chamber (2), multiple intake elbows (3) arranged side by side, and a throttle valve The installation flange (4), the cylinder head installation flange (5), the intake manifold (1), the pressure stabilizing chamber (2) and the intake elbow (3) are connected in sequence, and the throttle valve installation flange ( 4) It is connected to the intake manifold (1), and the cylinder head mounting flange (5) is connected to the intake elbow (3). The angle between them is 123-128°. A transitional arc of R90-R110mm is set at the connection position between the intake manifold (1) and the plenum chamber (2), and each intake elbow (3) is at the middle position The distance between the two ends is smaller than the distance between the two ends. The length of each intake elbow (3) is 350-370mm, and the inner diameter is 46-48mm. The length dimension of the intake manifold is L≤1435mm, the width dimension W≤1320mm, and the height dimension H≤200mm.

本实用新型从四个方面控制进气歧管的外形尺寸,使整体结构更为紧凑、成本更低:(a)改变进气总管与稳压腔的夹角,使进气总管朝进气弯管靠拢,(b)改变传统结构中各进气弯管成梳形分布的结构形式,采用缩小各进气弯管在中间位置处的间距,使各进气弯管呈两端宽、中间窄的分布形式,(c)控制各进气弯管的长度,(d)控制进气歧管的长、宽、高度尺寸;从两个方面来保证气缸的充气效率和发动机的整体性能:(a)在进气总管与稳压腔的连接位置处设置有R90~R110mm的过渡圆弧,以消除进气总管与稳压腔的夹角减小造成的气流干扰,(b)将各进气弯管的内径增大到为46~48mm。 The utility model controls the external dimensions of the intake manifold from four aspects, so that the overall structure is more compact and the cost is lower: (a) Change the angle between the intake manifold and the pressure stabilizing chamber, so that the intake manifold faces the intake bend (b) Change the structure of the intake elbows in the traditional structure in a comb-shaped distribution, and reduce the distance between the intake elbows at the middle position, so that each intake elbow is wide at both ends and narrow in the middle distribution form, (c) control the length of each intake elbow, (d) control the length, width and height of the intake manifold; from two aspects to ensure the charging efficiency of the cylinder and the overall performance of the engine: (a ) A transitional arc of R90~R110mm is provided at the connection position between the intake manifold and the plenum chamber to eliminate the airflow interference caused by the reduced angle between the intake manifold and the plenum chamber, (b) each intake bend The inner diameter of the tube was increased to 46-48mm.

所述进气总管(1)、稳压腔(2)在两者的连接位置处的内腔截面积最大,且进气总管(1)的内腔截面积朝远离稳压腔(2)的方向逐渐减小,稳压腔(2)的内腔截面积朝远离进气总管(1)的方向逐渐减小,进一步保证进气总管与稳压腔连接位置处的气流顺畅,从而提高气缸的充气效率,改善发动机的性能。 The inner cavity cross-sectional area of the intake manifold (1) and the plenum chamber (2) is the largest at the connection position of the two, and the inner cavity sectional area of the intake manifold (1) faces away from the plenum chamber (2). direction gradually decreases, and the cross-sectional area of the plenum chamber (2) gradually decreases toward the direction away from the intake manifold (1), which further ensures smooth air flow at the connection position between the intake manifold and the plenum chamber, thereby improving the cylinder's performance. Inflation efficiency improves engine performance.

作为优选,所述进气总管(1)与稳压腔(2)之间的夹角为128°,进气总管(1)与稳压腔(2)的连接位置处设置的过渡圆弧为R100mm,各进气弯管(3)的长度均为360mm,内径均为47mm,该进气歧管中L×W×H为1433×1316×197mm。 As a preference, the included angle between the intake manifold (1) and the plenum chamber (2) is 128°, and the transition arc set at the connection position between the intake manifold (1) and the plenum chamber (2) is R100mm, the length of each intake elbow (3) is 360mm, and the inner diameter is 47mm, and L×W×H in the intake manifold is 1433×1316×197mm.

本实用新型的有益效果:整体结构紧凑、成本低、气缸的充气效率高、发动机动力性好。 The beneficial effect of the utility model is that the overall structure is compact, the cost is low, the gas charging efficiency of the cylinder is high, and the power performance of the engine is good.

附图说明 Description of drawings

图1  是本实用新型的主视图。 Fig. 1 is the front view of the utility model.

图2  是图1的右视图。 Figure 2 is the right side view of Figure 1.

具体实施方式 Detailed ways

下面结合附图和实施例对本实用新型作进一步说明: Below in conjunction with accompanying drawing and embodiment the utility model is further described:

如图1、2所示的一种汽车发动机进气歧管,由进气总管1、稳压腔2、并排设置的多根进气弯管3、节气门安装法兰4、缸盖安装法兰5构成,各部件均由工程塑料制成。进气总管1、稳压腔2和进气弯管3依次相通,稳压腔2平直设置,进气总管1斜上翘。节气门安装法兰4与进气总管1相连,另一端与节气门相连,缸盖安装法兰5与进气弯管3相连,另一端与气缸相连,气流经节气门进入,依次经过进气总管1、稳压腔2、进气弯管3,为气缸充气,进气弯3管3的数量与气缸的数量相同,以上所述与传统结构相同。 An automobile engine intake manifold as shown in Figures 1 and 2, consists of an intake manifold 1, a pressure stabilizing chamber 2, multiple intake elbows 3 arranged side by side, a throttle valve mounting flange 4, and a cylinder head mounting method Blue 5, each component is made of engineering plastics. The intake main pipe 1, the plenum chamber 2 and the intake elbow 3 are connected in sequence, the plenum chamber 2 is straightly arranged, and the intake main pipe 1 is obliquely upturned. Throttle valve mounting flange 4 is connected with intake manifold 1, the other end is connected with throttle valve, cylinder head mounting flange 5 is connected with intake elbow 3, and the other end is connected with cylinder, the air enters through the throttle valve, and passes through the intake air in turn. Main pipe 1, pressure stabilizing chamber 2, intake elbow 3, are air cylinder inflation, and the quantity of intake elbow 3 pipe 3 is identical with the quantity of cylinder, and above-mentioned is identical with traditional structure.

区别在于:进气总管1与稳压腔2之间的夹角为128°,进气总管1与稳压腔2的连接位置处设置有R100mm的过渡圆弧,各进气弯管3在中部位置处的间距小于两端的间距,使各进气弯管3整体呈两端宽、中间窄的结构形式。各进气弯管3的长度为360mm,进气弯管3的具体形状可以根据特定的车型进行调节;各进气弯管3的内径相同,均为47mm,进气歧管中L×W×H为1433×1316×197mm。进气总管1、稳压腔2在两者的连接位置处的内腔截面积最大,且进气总管1的内腔截面积朝远离稳压腔2的方向逐渐减小,稳压腔2的内腔截面积朝远离进气总管1的方向逐渐减小,进一步保证夹角位置处的气流顺畅。 The difference is that the angle between the intake manifold 1 and the plenum chamber 2 is 128°, the connection position between the intake manifold 1 and the plenum chamber 2 is provided with a transition arc of R100mm, and each intake elbow 3 is in the middle The distance at the position is smaller than the distance between the two ends, so that each intake elbow 3 has a structure with wide ends and a narrow middle as a whole. The length of each intake elbow 3 is 360mm, and the specific shape of the intake elbow 3 can be adjusted according to the specific vehicle model; the inner diameter of each intake elbow 3 is the same, both are 47mm, and the L×W× H is 1433×1316×197mm. The cross-sectional area of the inner cavity of the intake manifold 1 and the plenum 2 at the connection position of the two is the largest, and the sectional area of the inner cavity of the intake manifold 1 gradually decreases toward the direction away from the plenum 2, and the sectional area of the plenum 2 The cross-sectional area of the inner cavity gradually decreases toward the direction away from the intake manifold 1, further ensuring smooth airflow at the angled position.

上述结构的汽车发动机进气歧管(简称“短歧管”)与国家知识产权局公开的 “汽车发动机进气歧管”(公开号101705890A,简称“长歧管”)的扭矩性能对比见下表: The torque performance comparison between the automobile engine intake manifold with the above structure (referred to as "short manifold") and the "automotive engine intake manifold" (public number 101705890A, referred to as "long manifold") disclosed by the State Intellectual Property Office is as follows surface:

Figure 831356DEST_PATH_IMAGE002
Figure 831356DEST_PATH_IMAGE002

从以上扭矩性能对比表中可以看出,配备本实用新型的发动机的转速在3000RPM以下的扭矩均大于长歧管,转速在3500~5500RPM范围的扭矩比长歧管稍低,在5500~6000RPM范围的扭矩也大于长歧管。汽车常用驾驶工况的发动机转速在2000RPM左右,在此转速范围内的发动机扭矩是影响汽车动力性的决定因素,因此,本实用新型的发动机进气歧管气体流动顺畅,在1000~6000RPM的转速下均能保证气缸的充气效率,为发动机提供足够的扭矩,在常用驾驶工况下的发动机扭矩甚至大于长歧管,显著提升发动机的整体性能。 As can be seen from the above torque performance comparison table, the torque of the engine equipped with the utility model at a speed below 3000RPM is greater than that of the long manifold, and the torque at the speed of 3500-5500RPM is slightly lower than that of the long manifold, and it is in the range of 5500-6000RPM The torque is also greater than that of the long manifold. The engine speed in the common driving conditions of automobiles is about 2000RPM, and the engine torque within this speed range is the decisive factor affecting the dynamic performance of the automobile. Both can ensure the charging efficiency of the cylinder and provide sufficient torque for the engine. The engine torque under common driving conditions is even greater than that of the long manifold, which significantly improves the overall performance of the engine.

以上所述为本实用新型的优选,并不局限于上述结构形式及具体尺寸,事实上,通过实验验证,进气总管1与稳压腔2之间呈123~128°的夹角,在进气总管1与稳压腔2的连接位置处设置R90~R110mm的过渡圆弧,各进气弯管3的长度均为350~370mm, 内径均为46~48mm,进气歧管的长度尺寸L≤1435mm,宽度尺寸W≤1320mm,高度尺寸H≤200mm,均能满足设计要求。 The above is the preference of the present utility model, and is not limited to the above-mentioned structural forms and specific dimensions. In fact, it has been verified by experiments that the angle between the intake main pipe 1 and the plenum chamber 2 is 123-128°. A transitional arc of R90-R110mm is set at the connection position between the gas main pipe 1 and the pressure-stabilizing chamber 2, the length of each intake elbow 3 is 350-370mm, the inner diameter is 46-48mm, and the length of the intake manifold is L ≤1435mm, width dimension W≤1320mm, height dimension H≤200mm, all of which can meet the design requirements.

Claims (3)

1.一种汽车发动机进气歧管,包括进气总管(1)、稳压腔(2)、并排设置的多根进气弯管(3)、节气门安装法兰(4)、缸盖安装法兰(5),所述进气总管(1)、稳压腔(2)和进气弯管(3)依次相通,所述节气门安装法兰(4)与进气总管(1)相连,所述缸盖安装法兰(5)与进气弯管(3)相连,其特征在于:所述进气总管(1)与稳压腔(2)之间呈123~128°的夹角,在进气总管(1)与稳压腔(2)的连接位置处设置有R90~R110mm的过渡圆弧,各进气弯管(3)在中部位置处的间距小于两端的间距,各进气弯管(3)的长度均为350~370mm,内径均为46~48mm,该进气歧管的长度尺寸L≤1435mm,宽度尺寸W≤1320mm,高度尺寸H≤200mm。 1. An intake manifold for an automobile engine, including an intake manifold (1), a pressure stabilizing chamber (2), multiple intake elbows (3) arranged side by side, a throttle valve mounting flange (4), and a cylinder head The installation flange (5), the intake manifold (1), the pressure stabilizing chamber (2) and the intake elbow (3) are connected in sequence, and the throttle valve installation flange (4) is connected to the intake manifold (1) connected, the cylinder head mounting flange (5) is connected to the intake elbow (3), and it is characterized in that: the clamp between the intake manifold (1) and the pressure stabilizing chamber (2) is 123-128° corner, a transition arc of R90-R110mm is set at the connection position between the intake manifold (1) and the plenum chamber (2), and the distance between each intake elbow (3) in the middle is smaller than that at both ends. The length of the intake elbow (3) is 350-370mm, and the inner diameter is 46-48mm. The length of the intake manifold is L≤1435mm, the width W≤1320mm, and the height H≤200mm. 2.按照权利要求1所述的汽车发动机进气歧管,其特征在于:所述进气总管(1)、稳压腔(2)在两者的连接位置处的内腔截面积最大,且进气总管(1)的内腔截面积朝远离稳压腔(2)的方向逐渐减小,稳压腔(2)的内腔截面积朝远离进气总管(1)的方向逐渐减小。 2. The automobile engine intake manifold according to claim 1, characterized in that: the inner cavity cross-sectional area of the intake manifold (1) and the pressure stabilizing chamber (2) at the connection position of the two is the largest, and The cross-sectional area of the inner cavity of the intake manifold (1) gradually decreases toward the direction away from the plenum chamber (2), and the cross-sectional area of the inner cavity of the plenum chamber (2) gradually decreases toward the direction away from the intake manifold (1). 3.按照权利要求1所述的汽车发动机进气歧管,其特征在于:所述进气总管(1)与稳压腔(2)之间的夹角为128°,进气总管(1)与稳压腔(2)的连接位置处设置的过渡圆弧为R100mm,各进气弯管(3)的长度均为360mm,内径均为47mm,该进气歧管中L×W×H为1433×1316×197mm。 3. The automobile engine intake manifold according to claim 1, characterized in that: the angle between the intake manifold (1) and the pressure stabilizing chamber (2) is 128°, and the intake manifold (1) The transition arc set at the connection position with the plenum chamber (2) is R100mm, the length of each intake elbow (3) is 360mm, and the inner diameter is 47mm, and the L×W×H in the intake manifold is 1433×1316×197mm.
CN201120312799XU 2011-08-25 2011-08-25 car engine intake manifold Expired - Fee Related CN202250501U (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103423042A (en) * 2012-05-22 2013-12-04 安徽华菱汽车有限公司 Engine and air inlet pipe thereof
CN113818977A (en) * 2021-09-29 2021-12-21 广西玉柴机器股份有限公司 Air inlet pipe of engine
CN115539259A (en) * 2022-10-13 2022-12-30 上汽通用五菱汽车股份有限公司 Intake manifold assembly, engine and automobile

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103423042A (en) * 2012-05-22 2013-12-04 安徽华菱汽车有限公司 Engine and air inlet pipe thereof
CN113818977A (en) * 2021-09-29 2021-12-21 广西玉柴机器股份有限公司 Air inlet pipe of engine
CN113818977B (en) * 2021-09-29 2024-04-05 广西玉柴机器股份有限公司 Engine air inlet pipe
CN115539259A (en) * 2022-10-13 2022-12-30 上汽通用五菱汽车股份有限公司 Intake manifold assembly, engine and automobile

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