WO2019127187A1 - 一种进气流量传感器适配管路及发动机进气系统 - Google Patents

一种进气流量传感器适配管路及发动机进气系统 Download PDF

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Publication number
WO2019127187A1
WO2019127187A1 PCT/CN2017/119259 CN2017119259W WO2019127187A1 WO 2019127187 A1 WO2019127187 A1 WO 2019127187A1 CN 2017119259 W CN2017119259 W CN 2017119259W WO 2019127187 A1 WO2019127187 A1 WO 2019127187A1
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Prior art keywords
intake
flow sensor
elbow
pipe
air flow
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PCT/CN2017/119259
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English (en)
French (fr)
Inventor
张文霞
代子阳
侯晓良
吴晓林
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潍柴动力股份有限公司
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Priority to PCT/CN2017/119259 priority Critical patent/WO2019127187A1/zh
Publication of WO2019127187A1 publication Critical patent/WO2019127187A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems

Definitions

  • the present invention relates to the field of engine technology, and in particular, to an intake air flow sensor adapter line. It also relates to an engine intake system including the intake flow sensor adapter line.
  • MAF (short for English Mass air flow sensor, Chinese name for intake air flow sensor) is a key component to ensure the normal operation of Euro VI diesel engine. It is mainly used to measure the intake air volume of fresh air entering the engine cylinder. MAF is in progress. The gas flow rate is extremely sensitive. The piping used to install the MAF needs to recalibrate the flow characteristic curve of the MAF after the connection is completed or every minor change in the connecting line.
  • the object of the present invention is to provide an intake air flow sensor fitting pipeline to ensure that the intake air flow rate in the pipeline is consistent and avoid the MAF calibration process being repeated.
  • Another object of the present invention is to provide an engine intake system including the intake flow sensor adapter line to ensure uniform intake flow rate in the pipeline and avoid repeated MAF calibration processes.
  • the present invention provides the following technical solutions:
  • An intake air flow sensor adapter line includes:
  • An elbow pipe the two ends of the elbow pipe are respectively an intake end and an outlet end;
  • a steady flow tube located at an elbow in the elbow tube, and an axis of the steady flow tube is parallel to an axis of the outlet end;
  • An intake air flow sensor is fixed to the elbow pipe and located at an exit of the steady flow tube;
  • a rectifying assembly is disposed in the intake end of the elbow pipe.
  • the elbow pipe is a right angle elbow pipe.
  • the steady flow tube is located at a lower position of the elbow in the elbow tube.
  • the intake air flow sensor is located at a center position of the outlet of the steady flow tube.
  • the rectifying assembly includes a grid plate, and each of the plate faces of the grating plate is parallel to the intake air flow.
  • the rectifying assembly further includes a homogenizing rectifying plate disposed in parallel at a lower portion of the grating plate.
  • the homogenizing rectifying plate is a cross-shaped rectifying plate.
  • the present application also provides an engine intake system including an engine, an air cleaner, and a turbocharger, the outlet of the air cleaner being in communication with a front line of a compressor of the turbocharger,
  • the rear line of the compressor is in communication with the intake port of the engine; and the intake flow sensor adapter line according to any of the above, the intake flow sensor is adapted to the intake end of the line Communicating with the outlet of the air cleaner, the outlet end of the intake flow sensor adapter line is in communication with the front line of the compressor.
  • the intake flow sensor adapting pipeline provided by the invention comprises an elbow pipe, and the temperature flow zone of the elbow of the elbow pipe is provided with a steady flow pipe, and the axis of the steady flow pipe is parallel with the gas outlet end of the elbow pipe, and the intake flow rate
  • the sensor is fixed on the elbow pipe and located at the outlet of the steady flow pipe; a rectifying component is arranged in the intake end of the elbow pipe.
  • the gas Before the gas enters the elbow pipe, the gas is rectified by the rectifying component through the rectifying component in the inlet end, so that the gas flow rate into the elbow pipe is stable and uniform, and the gas flow sensor is fitted through the inlet pipe.
  • the road ensures that the flow rate of the intake air in the pipeline is consistent, which avoids the repetition of the MAF calibration process and saves manpower and financial resources.
  • the engine air intake system provided by the invention adopts the intake air flow sensor fitting pipeline in the application, which ensures the same intake air flow rate in the intake pipeline, avoids the repetition of the MAF calibration process, and saves manpower and financial resources.
  • FIG. 1 is a schematic structural view of an air intake amount sensor fitting pipeline according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of an internal structure of an intake air sensor adapter pipeline according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a grid plate of a rectifying component of an air intake amount sensor fitting pipeline according to an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of a homogenizing rectifying plate of a rectifying component of an air intake amount sensor fitting pipeline according to an embodiment of the present invention
  • FIG. 5 is a schematic diagram of connection of an engine intake system according to an embodiment of the present invention.
  • 1 is an elbow pipe
  • 2 is a steady flow pipe
  • 3 is a rectifying component
  • 31 is a grid plate
  • 32 is a homogenizing rectifying plate
  • 4 is an air intake amount sensor
  • 01 is an air cleaner
  • 02 is an intake air sensor adapter line
  • 03 is a turbocharger
  • 04 is an engine.
  • the core of the invention provides an intake air flow sensor adapter line, which ensures that the intake air flow rate in the pipeline is consistent, and the MAF calibration process is avoided.
  • the invention also provides an engine intake system including the intake flow sensor adapter line, which ensures that the intake flow rate in the pipeline is consistent, and the MAF calibration process is avoided.
  • an embodiment of the present invention provides an intake air flow sensor adapter pipe, including an elbow pipe 1, a steady flow pipe 2, an intake flow sensor 4, and a rectifying component 3;
  • the tube 1 has an elbow, and the two ends of the elbow tube 1 are respectively an intake end and an outlet end;
  • the steady flow tube 2 is disposed in the elbow tube 1 and is located at the elbow of the elbow tube 1 and the steady flow tube 2
  • the axis is parallel to the axis of the outlet end, that is, the steady flow tube 2 is disposed in the steady flow region of the elbow pipe 1;
  • the intake flow sensor 4 is fixed on the elbow pipe 1 and located at the outlet of the steady flow tube 2 for detecting The flow rate of the gas flowing out of the steady flow tube 2;
  • the rectifying unit 3 is disposed in the intake end of the elbow pipe 1.
  • the working principle of the intake flow sensor adapting pipeline is as follows: the gas enters the elbow pipe 1 and is concentrated at the elbow to form a steady flow zone, and the gas is concentrated by setting a steady flow pipe 2 in the steady flow zone, and The gas flow sensor 4 is disposed at the outlet of the steady flow tube 2, and is capable of detecting the flow rate of the stable air flow.
  • the gas Before the gas enters the elbow pipe 1, the gas is first passed through the rectifying unit 3 in the intake end and through the rectifying unit 3.
  • the rectification ensures that the flow rate of the gas entering the elbow pipe 1 is stable and uniform, and the intake flow sensor is adapted to ensure that the flow rate of the intake air in the pipeline is consistent, thereby avoiding the repetition of the MAF calibration process and saving manpower and financial resources.
  • the elbow pipe 1 is a right angle elbow pipe. That is, the corner of the elbow pipe 1 is 90 degrees, the gas passes through the elbow of 90 degrees, and a steady flow region is formed behind the elbow, and the flow velocity of the gas is initially stabilized by the elbow, and the steady flow effect of the elbow pipe 1 of 90 degrees is achieved. better.
  • the elbow tube 1 can also be of other angles.
  • the flow regulating tube 2 is located at a lower position at the elbow in the elbow pipe 1. Since the steady flow area of the elbow pipe 1 is close to the lower part of the elbow, the steady flow pipe 2 is disposed therein, so that the steady flow pipe 2 can face the steady flow zone, and the gas passing through the steady flow pipe 2 is stabilized. gas. Of course, the position of the flow tube 2 is set in accordance with the position of the steady flow region of the elbow pipe 1.
  • the intake air flow sensor 4 is located at the center of the outlet of the steady flow tube 2. Since the gas in the steady flow tube 2 is a steady flow gas, and the flow rate of the gas at the center position at the outlet of the steady flow tube 2 is the most stable, the intake flow rate sensor 4 is disposed at the center of the outlet of the steady flow tube 2 The position is to ensure that the detection of the intake air flow sensor 4 is accurate.
  • the present embodiment provides a specific rectifying assembly 3 including a grid plate 31.
  • the respective plates of the grid plate 31 are parallel to each other and are parallel to the intake air flow, that is, the grille.
  • the flow direction of the plate 31 is parallel to the flow direction of the gas, and the gas entering the elbow pipe 1 is rectified to stabilize the flow rate of the gas entering the elbow pipe 1.
  • the rectifying assembly 3 further includes a homogenizing rectifying plate 32 disposed in parallel at a lower portion of the grid plate 31. After the grid plate 31 preliminary rectifies the gas, the gas is further homogenized by the homogenization rectifying plate 32, thereby improving the uniformity of the gas flow rate.
  • the homogenizing rectifying plate 32 is a criss-crossing rectifying plate, that is, a grid on which the uniform rectifying plate 32 is disposed with a uniform crisscross pattern.
  • the gas is homogenized by a uniform cross-roughness rectifying plate 32.
  • the homogenizing rectifying plate 32 can also be of other shapes, such as a triangular combined grain rectifying plate, a circular combined grain rectifying plate, a honeycomb grain rectifying plate, and the like.
  • an embodiment of the present invention further provides an engine air intake system, as shown in FIG. 5, including the engine 04, the air filter 01, and the turbo generator.
  • the compressor 03 wherein, the outlet of the air cleaner 01 is in communication with the front line of the compressor of the turbocharger 03, and the rear line of the compressor is in communication with the intake port of the engine 04;
  • the engine intake system further includes The intake air flow sensor fitting line 02 described in any of the above embodiments, the intake end of the intake air flow sensor fitting line 02 communicates with the outlet of the air cleaner 01, and the intake air flow sensor adapts the line 02 The outlet end is in communication with the front line of the compressor.
  • the engine intake system is performing MAF calibration. Since the intake flow sensor of the present application is adapted to the pipeline 02, the intake flow rate in the intake pipeline is ensured to be uniform, and the MAF calibration process is avoided, saving Human and financial resources.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Measuring Volume Flow (AREA)

Abstract

一种进气流量传感器适配管路（02）及发动机进气系统，其中，进气流量传感器适配管路（02）包括：弯头管（1），弯头管（1）的两端分别为进气端和出气端；稳流管（2），位于弯头管（1）内的弯头处，且其轴线与出气端的轴线平行；进气流量传感器（4），固定于弯头管（1）上且位于稳流管（2）的出口处；整流组件（3），设置于弯头管（1）的进气端内。气体在弯头管（1）的弯头处集中形成稳流区，通过在稳流区内设置稳流管（2）将气体集中，并将进气流量传感器（4）设置在稳流管（2）的出口处，能够对稳定的气流进行流量检测，气体进入弯头管（1）内之前，先经过进气端内的整流组件（3），通过整流组件（3）对气体进行整流，使进入弯头管（1）中的气体流速稳定均匀，保证了管路中进气流速一致，避免了MAF标定过程反复，节约了人力和财力。

Description

一种进气流量传感器适配管路及发动机进气系统 技术领域
本发明涉及发动机技术领域，特别涉及一种进气流量传感器适配管路。还涉及一种包含该进气流量传感器适配管路的发动机进气系统。
背景技术
MAF(是英文Mass air flow sensor的缩写，中文名称为进气流量传感器)是保证欧VI柴油机正常工作的关键零部件，主要用来测量进入发动机气缸内的新鲜空气的进气量，MAF对进气流速极为敏感，用于安装MAF的管路在连接完毕或每一次连接管路的微小改动都需要重新对MAF的流量特性曲线进行标定。
但是，在标定的过程中，由于管路中的进气流速存在波动，导致标定工作反复，标定过程较为繁琐，且浪费了人力和财力。
综上所述，如何解决管路中气流波动导致MAF标定过程反复的问题，成为了本领域技术人员亟待解决的问题。
发明内容
有鉴于此，本发明的目的在于提供一种进气流量传感器适配管路，以保证管路中进气流速一致，避免MAF标定过程反复。
本发明的另一个目的在于提供一种包含该进气流量传感器适配管路的发动机进气系统，以保证管路中进气流速一致，避免MAF标定过程反复。
为达到上述目的，本发明提供以下技术方案：
一种进气流量传感器适配管路，包括：
弯头管，所述弯头管的两端分别为进气端和出气端；
稳流管，位于所述弯头管内的弯头处，且所述稳流管的轴线与所述出气端的轴线平行；
进气流量传感器，固定于所述弯头管上且位于所述稳流管的出口处；
整流组件，设置于所述弯头管的进气端内。
优选地，在上述的进气流量传感器适配管路中，所述弯头管为直角弯头管。
优选地，在上述的进气流量传感器适配管路中，所述稳流管位于所述弯头管内的弯头处靠下位置。
优选地，在上述的进气流量传感器适配管路中，所述进气流量传感器位于所述稳流管的出口处中心位置。
优选地，在上述的进气流量传感器适配管路中，所述整流组件包括格栅板，所述格栅板的各个板面均与进气气流平行。
优选地，在上述的进气流量传感器适配管路中，所述整流组件还包括平行设置于所述格栅板下部的均匀化整流板。
优选地，在上述的进气流量传感器适配管路中，所述均匀化整流板为十字交叉纹路整流板。
本申请还提供了一种发动机进气系统，包括发动机、空气滤清器和涡轮增压器，所述空气滤清器的出口与所述涡轮增压器的压气机的前管路连通，所述压气机的后管路与所述发动机的进气口连通；还包括如以上任一项所述的进气流量传感器适配管路，所述进气流量传感器适配管路的进气端与所述空气滤清器的出口连通，所述进气流量传感器适配管路的出气端与所述压气机的前管路连通。
与现有技术相比，本发明的有益效果是：
本发明提供的进气流量传感器适配管路包括弯头管，弯头管的弯头处温流区设置有稳流管，稳流管的轴线与弯头管的出气端平行，进气流量传感器固定于弯头管上且位于稳流管的出口处；弯头管的进气端内设置有整流组件。通过设置弯头管将气体在弯头处形成稳流区，通过在稳流区内设置稳流管将气体集中，并将进气流量传感器设置在稳流管的出口处，能够对稳定的气流进行流量检测，气体进入弯头管内之前，先经过进气端内的整流组件，通过整流组件对气体进行整流，使进入弯头管中的气体流速稳定均匀，通过该进气流量传感器适配管路保证了管路中进气流速一致，避免了MAF标定过程反复，节约了人 力和财力。
本发明提供的发动机进气系统采用了本申请中的进气流量传感器适配管路，保证了进气管路中进气流速一致，避免了MAF标定过程反复，节约了人力和财力。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据提供的附图获得其他的附图。
图1为本发明实施例提供的一种进气量传感器适配管路的结构示意图；
图2为本发明实施例提供的一种进气量传感器适配管路的内部结构示意图；
图3为本发明实施例提供的一种进气量传感器适配管路的整流组件的格栅板的结构示意图；
图4为本发明实施例提供的一种进气量传感器适配管路的整流组件的均匀化整流板的结构示意图；
图5为本发明实施例提供的一种发动机进气系统的连接示意图。
其中，1为弯头管、2为稳流管、3为整流组件、31为格栅板、32为均匀化整流板、4为进气量传感器；
01为空气滤清器、02为进气量传感器适配管路、03为涡轮增压器、04为发动机。
具体实施方式
本发明的核心是提供了一种进气流量传感器适配管路，保证了管路中进气流速一致，避免了MAF标定过程反复。
本发明的还提供了一种包含该进气流量传感器适配管路的发动机进气系 统，保证了管路中进气流速一致，避免了MAF标定过程反复。
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
请参考图1-图2，本发明实施例提供了一种进气流量传感器适配管路，包括弯头管1、稳流管2、进气流量传感器4和整流组件3；其中，弯头管1具有弯头，弯头管1的两端分别为进气端和出气端；稳流管2设置于弯头管1内，且位于弯头管1的弯头处，且稳流管2的轴线与出气端的轴线平行，即稳流管2设置于弯头管1的稳流区内；进气流量传感器4固定于弯头管1上且位于稳流管2的出口处，用于检测从稳流管2中流出的气体的流量；整流组件3设置于弯头管1的进气端内。
该进气流量传感器适配管路的工作原理为：气体进入弯头管1后在弯头处集中，形成稳流区，通过在稳流区内设置稳流管2将气体集中，并将进气流量传感器4设置在稳流管2的出口处，能够对稳定的气流进行流量检测，气体进入弯头管1内之前，先经过进气端内的整流组件3，通过整流组件3对气体进行整流，使进入弯头管1中的气体流速稳定均匀，通过该进气流量传感器适配管路保证了管路中进气流速一致，避免了MAF标定过程反复，节约了人力和财力。
进一步地，在本实施例中，弯头管1为直角弯头管。即弯头管1的拐角为90度，气体经过90度的弯头，在弯头后方形成稳流区，通过弯头对气体的流速进行初步稳定，90度的弯头管1的稳流效果更好。当然，弯头管1还可以为其它角度。
更进一步地，在本实施例中，稳流管2位于弯头管1内的弯头处靠下位置。由于弯头管1的稳流区靠近弯头下方，因此，将稳流管2设置在此处，能够使稳流管2正对稳流区中，使通过稳流管2的气体为稳流气体。当然，根据弯头管1的稳流区的位置设置稳流管2的位置。
作为优化，在本实施例中，进气流量传感器4位于所述稳流管2的出口处 中心位置。由于稳流管2中的气体为稳流气体，而稳流管2的出口处的中心位置的气体的流速最稳定，因此，将进气流量传感器4设置于稳流管2的出口处的中心位置，以保证进气流量传感器4的检测准确。
如图3和图4所示，本实施例提供了一种具体的整流组件3，其包括格栅板31，格栅板31的各个板面相互平行且均与进气气流平行，即格栅板31的导流方向平行于气体的流向，对进入弯头管1中的气体进行整流，稳定进入弯头管1中的气体的流速。
进一步地，在本实施例中，整流组件3还包括平行设置于格栅板31下部的均匀化整流板32。格栅板31对气体进行初步整流后，再通过均匀化整流板32将气体进一步进行均匀化处理，提高了气体流速的均匀一致性。
作为优化，在本实施例中，如图4所示，均匀化整流板32为十字交叉纹路整流板，即均匀化整流板32上布置有均匀的十字交叉纹路的格栅。通过均匀的十字交叉纹路整流板32对气体进行均匀化处理。当然，均匀化整流板32还可以为其他形状，如三角组合纹路整流板、圆形组合纹路整流板、蜂窝纹路整流板等。
基于以上任一实施例所描述的进气流量传感器适配管路，本发明实施例还提供了一种发动机进气系统，如图5所示，包括发动机04、空气滤清器01和涡轮增压器03；其中，空气滤清器01的出口与涡轮增压器03的压气机的前管路连通，压气机的后管路与发动机04的进气口连通；发动机进气系统还包括如以上任一实施例所描述的进气流量传感器适配管路02，进气流量传感器适配管路02的进气端与空气滤清器01的出口连通，进气流量传感器适配管路02的出气端与压气机的前管路连通。
该发动机进气系统在进行MAF标定时，由于采用了本申请中的进气流量传感器适配管路02，因此，保证了进气管路中进气流速一致，避免了MAF标定过程反复，节约了人力和财力。
本说明书中各个实施例采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似部分互相参见即可。
对所公开的实施例的上述说明，使本领域专业技术人员能够实现或使用本发明。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的，本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下，在其它实施例中实现。因此，本发明将不会被限制于本文所示的这些实施例，而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。

Claims (8)

  1. 一种进气流量传感器适配管路，其特征在于，包括：
    弯头管，所述弯头管的两端分别为进气端和出气端；
    稳流管，位于所述弯头管内的弯头处，且所述稳流管的轴线与所述出气端的轴线平行；
    进气流量传感器，固定于所述弯头管上且位于所述稳流管的出口处；
    整流组件，设置于所述弯头管的进气端内。
  2. 根据权利要求1所述的进气流量传感器适配管路，其特征在于，所述弯头管为直角弯头管。
  3. 根据权利要求1所述的进气流量传感器适配管路，其特征在于，所述稳流管位于所述弯头管内的弯头处靠下位置。
  4. 根据权利要求1所述的进气流量传感器适配管路，其特征在于，所述进气流量传感器位于所述稳流管的出口处中心位置。
  5. 根据权利要求1所述的进气流量传感器适配管路，其特征在于，所述整流组件包括格栅板，所述格栅板的各个板面均与进气气流平行。
  6. 根据权利要求5所述的进气流量传感器适配管路，其特征在于，所述整流组件还包括平行设置于所述格栅板下部的均匀化整流板。
  7. 根据权利要求6所述的进气流量传感器适配管路，其特征在于，所述均匀化整流板为十字交叉纹路整流板。
  8. 一种发动机进气系统，包括发动机、空气滤清器和涡轮增压器，所述空气滤清器的出口与所述涡轮增压器的压气机的前管路连通，所述压气机的后管路与所述发动机的进气口连通；其特征在于，还包括如权利要求1-7任一项所述的进气流量传感器适配管路，所述进气流量传感器适配管路的进气端与所述空气滤清器的出口连通，所述进气流量传感器适配管路的出气端与所述压气机的前管路连通。
PCT/CN2017/119259 2017-12-28 2017-12-28 一种进气流量传感器适配管路及发动机进气系统 WO2019127187A1 (zh)

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USD902255S1 (en) * 2019-07-31 2020-11-17 PRL Motorsports LLC Intake system
CN117664261A (zh) * 2024-02-01 2024-03-08 安徽天康(集团)股份有限公司 一种弯管侧置式气体流量仪

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