CN106286035B - 一种适用于发动机的多管路系统 - Google Patents

一种适用于发动机的多管路系统 Download PDF

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CN106286035B
CN106286035B CN201610635627.3A CN201610635627A CN106286035B CN 106286035 B CN106286035 B CN 106286035B CN 201610635627 A CN201610635627 A CN 201610635627A CN 106286035 B CN106286035 B CN 106286035B
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张执南
贾维新
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Shanghai Dachuang Automotive Technology Co Ltd
Shanghai Jiaotong University
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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
    • F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B27/00—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues
    • F02B27/02—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means
    • F02B27/0205—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means characterised by the charging effect
    • F02B27/021—Resonance charging
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B27/00—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues
    • F02B27/02—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means
    • F02B27/0226—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means characterised by the means generating the charging effect
    • F02B27/0268—Valves
    • F02B27/0273—Flap valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B27/00—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues
    • F02B27/02—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means
    • F02B27/0226—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means characterised by the means generating the charging effect
    • F02B27/0268—Valves
    • F02B27/0278—Multi-way valves
    • 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
    • F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
    • F02M35/10255—Arrangements of valves; Multi-way valves
    • 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
    • F02M35/104—Intake manifolds
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Characterised By The Charging Evacuation (AREA)
  • Electric Cable Installation (AREA)

Abstract

本发明公开了一种适用于发动机的多管路系统，包括管道外壳、设置于所述管道外壳内的短增压管道和长增压管道、以及用于切换所述短增压管道和长增压管道气流方向的气道切换阀；在所述短增压管道与长增压管道之间设有用于改变长增压管道长度的腔体。本发明设置的腔体主要用于改变长增压管道所缠绕的圆柱体的直径，在不改变圆柱体的整体长度的情况下改变增压长管道的总长度，从而获得较强的谐振效应，提升发动机的扭矩。

Description

一种适用于发动机的多管路系统
技术领域
本发明涉及发动机管路领域，具体地说，特别涉及到一种适用于发动机的多管路系统。
背景技术
涡轮增压发动机可以显著提高发动机的热效率,提升额定功率和最大扭矩,从而使车辆在高速时动力充沛,从而达到节约燃油的目的。可是众所周知，涡轮增压发动机在增压器开始工作之前的低速段却存在明显的扭矩滞后的现象。提升增压发动机的低速扭矩一方面可以提高车辆的加速性能，另一方面可以通过调节变速箱的速比从而达到节油的目的。
目前的技术路线多采用在进气管路上使用辅助电动增压系统(E-Booster)，在涡轮增压器开启之前，用电动增压系统来提升发动机的进气量。缺点是成本较高。
内燃机进气系统内的压力波动可以提升发动机的充气效率，合适的进气长度可以在相匹配的发动机转速上提升发动机的充气效率，从而提升发动机的扭矩。由于压气机开始运转之前的发动机转速范围大概在怠速至1500-1800RPM，转速相对较低，所需要的进气管路较长，才能起到谐振效应，从而提升此转速范围的扭矩。而较长的进气管道随之带来压降的升高，会对发动机中高速工况产生影响，此时的压降升高带来的负影响会超过压力波谐振效应带来的正影响。
现有技术中有在低速使用长增压管道，而在高速使用短增压管道的发动机管路系统，但是其管路系统中的长增压管道受限于发动机内有限的空间，长增压管道的总长度受到严重制约，仍具有较多的高进空间。
发明内容
本发明旨在提出一种适用于发动机的多管路系统，能在有限的空间设置出远大于现有技术的长增压管道长度，从而解决现有技术中存在的问题。
本发明所解决的技术问题可以采用以下技术方案来实现：
一种适用于发动机的多管路系统，包括管道外壳、设置于所述管道外壳内的短增压管道和长增压管道、以及用于切换所述短增压管道和长增压管道气流方向的气道切换阀；在所述短增压管道与长增压管道之间设有用于改变长增压管道长度的腔体。
进一步的，所述腔体为环形封闭腔体结构，所述短增压管道穿过环形封闭腔体的内圆周，长增压管道沿环形封闭腔体的外圆周面螺旋设置，长增压管道的总长度随着腔体的增大而增加。
进一步的，所述短增压管道具有直筒形管路，直筒形管路的两端分别与管道外壳的进气口和出气口连通；
所述长增压管道包括设置于直筒形管路外表面的螺旋形挡板，螺旋形挡板的外侧与管道外壳的内壁相切构成用于气体通过的螺旋形管路，螺旋形管路的两端分别与管道外壳的进气口和出气口连通。
进一步的，所述气道切换阀通过可翻转结构设置于短增压管道和长增压管道的出气口端；当气道切换阀翻转至水平状态时，短增压管道导通，长增压管道关闭，气体经过直筒形管路流出；当气道切换阀翻转至竖直状态时，短增压管道关闭，长增压管道导通，气体经过螺旋形管路流出。
与现有技术相比，本发明的有益效果如下：
1、本发明设置的腔体主要用于改变长增压管道所缠绕的圆柱体的直径，在不改变圆柱体的整体长度的情况下改变增压长管道的总长度，从而获得较强的谐振效应，提升发动机的扭矩。
附图说明
图1为本发明所述的多管路系统的结构示意图。
图2为本发明所述的多管路系统的爆炸图及工作原理图。
图3为本发明所述的低转速的气流运动模式示意图。
图4为本发明所述的中高转速的气流运动模式示意图。
图中标号说明：1-管道外壳，2-长增压管道，3-短增压管道，4-气道切换阀5-腔体。
具体实施方式
为使本发明实现的技术手段、创作特征、达成目的与功效易于明白了解，下面结合具体实施方式，进一步阐述本发明。
参见图1和图2，本发明所述的一种适用于发动机的多管路系统，包括管道外壳1、以及设置于所述管道外壳1内的短增压管道3，在所述管道外壳1的内部还设有长增压管道2，所述短增压管道3和长增压管道2通过一气道切换阀4切换气流方向。
尤其需要指出的是，在所述短增压管道3与长增压管道2之间设有用于改变长增压管道长度的腔体5。所述腔体5为环形封闭腔体结构，所述短增压管道3穿过环形封闭腔体的内圆周，长增压管道2沿环形封闭腔体的外圆周面螺旋设置，所述腔体主要用于改变长增压管道2所缠绕的圆柱的直径DL，从而在不改变整体长度L的情况下改变增压长管道的总长度。
在本实施例中，所述短增压管道3具有直筒形管路，直筒形管路的两端分别与管道外壳1的进气口和出气口连通；所述长增压管道2包括设置于直筒形管路外表面的螺旋形挡板，螺旋形挡板的外侧与管道外壳1的内壁相切构成用于气体通过的螺旋形管路，螺旋形管路的两端分别与管道外壳的进气口和出气口连通。
本发明的工作过程和原理如下：
本发明通过在适用于低转速的长增压管道和适用于中高转速的短增压管道的来回切换的模式，可替换掉传统技术中的辅助电动增压系统，节约了成本，提升了发动机的扭矩和性能。
参见图3，当发送机处于低速状态时，气道切换阀翻转至水平状态，切换至长增压管道，从而获得谐振效应，提升发动机的扭矩。
参见图4，当发送机处于中高速状态时，气道切换阀翻转至竖直状态，切换至短增压管道，减少因管路过长带来的压降的升高，减轻对发动机中高速工况产生影响。
以上显示和描述了本发明的基本原理和主要特征和本发明的优点。本行业的技术人员应该了解，本发明不受上述实施例的限制，上述实施例和说明书中描述的只是说明本发明的原理，在不脱离本发明精神和范围的前提下，本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等效物界定。

Claims (1)

1.一种适用于发动机的多管路系统，包括管道外壳、设置于所述管道外壳内的短增压管道和长增压管道、以及用于切换所述短增压管道和长增压管道气流方向的气道切换阀；其特征在于：在所述短增压管道与长增压管道之间设有用于改变长增压管道长度的腔体；
所述腔体为环形封闭腔体结构，所述短增压管道穿过环形封闭腔体的内圆周，长增压管道沿环形封闭腔体的外圆周面螺旋设置，长增压管道的总长度随着腔体的增大而增加；
所述短增压管道具有直筒形管路，直筒形管路的两端分别与管道外壳的进气口和出气口连通；所述长增压管道包括设置于直筒形管路外表面的螺旋形挡板，螺旋形挡板的外侧与管道外壳的内壁相切构成用于气体通过的螺旋形管路，螺旋形管路的两端分别与管道外壳的进气口和出气口连通；
所述气道切换阀通过可翻转结构设置于短增压管道和长增压管道的出气口端；当气道切换阀翻转至水平状态时，短增压管道导通，长增压管道关闭，气体经过直筒形管路流出；当气道切换阀翻转至竖直状态时，短增压管道关闭，长增压管道导通，气体经过螺旋形管路流出。
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CN1924340A (zh) * 2005-08-29 2007-03-07 奇瑞汽车有限公司 可变长度螺旋进气管装置
CN1995716A (zh) * 2005-12-29 2007-07-11 比亚迪股份有限公司 可变进气管以及包括该可变进气管的进气系统

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JPS60216064A (ja) * 1984-04-10 1985-10-29 Mazda Motor Corp 多気筒エンジンの吸気装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1362578A (zh) * 2001-12-27 2002-08-07 干方飞 真空负压式可变长度的内燃机进气系统
CN1924340A (zh) * 2005-08-29 2007-03-07 奇瑞汽车有限公司 可变长度螺旋进气管装置
CN1995716A (zh) * 2005-12-29 2007-07-11 比亚迪股份有限公司 可变进气管以及包括该可变进气管的进气系统

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