CN104169561A - 机动车内燃机的混合阀 - Google Patents

机动车内燃机的混合阀 Download PDF

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CN104169561A
CN104169561A CN201380016345.XA CN201380016345A CN104169561A CN 104169561 A CN104169561 A CN 104169561A CN 201380016345 A CN201380016345 A CN 201380016345A CN 104169561 A CN104169561 A CN 104169561A
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flap
mixing valve
adjusting element
valve according
drive unit
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CN104169561B (zh
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洛塔尔·施勒德尔
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Continental Automotive GmbH
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10Air intakes; Induction systems
    • F02M35/10242Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
    • F02M35/10255Arrangements of valves; Multi-way valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/17Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
    • F02M26/21Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system with EGR valves located at or near the connection to the intake system
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/52Systems for actuating EGR valves
    • F02M26/64Systems for actuating EGR valves the EGR valve being operated together with an intake air throttle
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/65Constructional details of EGR valves
    • F02M26/70Flap valves; Rotary valves; Sliding valves; Resilient valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/04Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
    • F16K11/052Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with pivoted closure members, e.g. butterfly valves
    • F16K11/0525Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with pivoted closure members, e.g. butterfly valves the closure members being pivoted around an essentially central axis
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/10Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
    • F16K11/14Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle
    • F16K11/16Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle which only slides, or only turns, or only swings in one plane
    • F16K11/163Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle which only slides, or only turns, or only swings in one plane only turns
    • F16K11/165Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle which only slides, or only turns, or only swings in one plane only turns with the rotating spindles parallel to the closure members

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Exhaust-Gas Circulating Devices (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Valve Device For Special Equipments (AREA)
  • Electrically Driven Valve-Operating Means (AREA)
  • Multiple-Way Valves (AREA)

Abstract

机动车内燃机(1)的混合阀(6)中,两个阀瓣(10,11)的旋转轴(12,13)的间距小于最大的阀瓣(10)的直径。此外,阀瓣(10,11)与唯一的驱动装置(8)相连。驱动装置(8)确保了无碰撞地耦合阀瓣(10,11)的移动。因此特别紧凑地构建了混合阀(6)。

Description

机动车内燃机的混合阀
技术领域
本发明涉及一种机动车内燃机的混合阀,其具有布置在进气通道内的阀瓣和布置在废气再循环通道内的阀瓣,其中进气通道和废气再循环通道汇入到共同的汇流通道中,并且该混合阀具有用于驱动阀瓣的驱动装置。
背景技术
现今,这种混合阀经常安装在机动车内燃机的废气再循环系统中,并且其已经由实践中所公知。如下地控制进气阀瓣和排气阀瓣的移动,即排气阀瓣从第一位置起利用驱动装置的控制信号呈线性地打开。但是,进气阀瓣首先停留在第一位置中,并且仅当超过规定的控制信号时才关闭。
已知的混合阀的阀瓣具有至少与最大阀瓣的直径相等的间距。因此避免了阀瓣的碰撞。阀瓣的不同驱动器需要大量的结构空间,而这通常是无法提供的。
发明内容
本发明基于以下问题,即如下地设计开头所述类型的混合阀,使得其具有特别小的结构空间。
根据本发明,该问题由此解决,即阀瓣旋转轴的间距小于最大阀瓣的直径,并且阀瓣的摆动是无碰撞地耦合的。
通过这种设计确保了阀瓣摆动的耦合,使得阀瓣即使在其摆动相重叠时也没有彼此碰撞。因此可以特别近的共同布置阀瓣的旋转轴。因此同时,用于驱动阀瓣的部件也同样共同布置成特别近的。从而混合阀具有特别小的结构空间。
根据本发明的有利的改进方案,当同向地引导阀瓣时,无碰撞地引导阀瓣是特别简单的。
根据本发明的其他有利的改进方案,当驱动装置具有唯一的电动机并且该电动机通过相应的调节件与阀瓣相连时,可以保持特别低的用于驱动阀瓣的结构需求。由此实现了使混合阀完全替代两个单独的阀。由于本发明,大量的部件、如壳体、罩、传感器机构和插接件,分别仅需要一件。从而,除结构空间优势之外,根据本发明的混合阀还提供了很大的成本优势。
根据本发明的其他有利的改进方案,当调节件中的至少一个包括具有多个齿轮的齿轮传动装置时,电动机可以是具有特别小尺寸的电动机。大多数情况下,这种电动机具有高转速。齿轮传动装置实现了将电动机的高转速转化成阀瓣的规定摆动。
根据本发明的其他有利的改进方案,当在一个调节件与阀瓣之间布置有离合器时,可以简单地控制阀瓣的移动次序。
根据本发明的其他有利的优化方案,当离合器是具有空程的牙嵌式离合器时,离合器在结构上特别简单的。
根据本发明的其他有利的优化方案,当调节件中的至少一个具有用于引导控制部件的控制凸轮时,阀瓣的移动次序和移动速度可以设计为多样的。
根据本发明的其他有利的改进方案,当控制凸轮布置在所驱动的轮的外轮廓上,并且控制部件是与阀瓣相连的、在控制凸轮上滚动的滚子时,控制凸轮和控制部件是结构上特别简单的。优选地,阀瓣利用轮相对于外轮廓弹簧弹性地预加载。特别地,借助控制凸轮的阀瓣驱动与借助齿轮传动装置的阀瓣驱动的组合,实现了特别小的混合阀尺寸。
根据本发明的其他有利的改进方案,当具有控制凸轮的轮布置在齿轮传动装置的一个齿轮上时,可以维持特别小的轴支承部位的数量。这有助于继续减小混合阀的尺寸。
根据本发明的其他有利的优化方案,当在驱动装置的中间位置中两个阀瓣均为打开的并且在末端位置中阀瓣中的一个或另一个是闭合的时,在进气通道中和废气再循环通道中流动的气体可以任意混合。
附图说明
本发明允许大量的实施方式。为了继续明确其原理,附图中示出了这些实施方式中的一个并在下面进行说明。附图示出:
图1是具有根据本发明的混合阀的内燃机,
图2是图1所示混合阀的示意图,
图3是图2所示混合阀的阀瓣摆动的示意图。
具体实施方式
图1示出了具有进气管2并具有排气管3的内燃机1。进气管2具有进气通道4,通过进气通道从周围环境中吸入空气。废气再循环通道5从排气导管3引出经过混合阀6到进气管2中。混合阀6引导进气通道4和废气再循环通道5汇集成汇流通道7。汇流通道7直接通向内燃机1。具有电动机9的驱动装置8实现了对混合阀6的调节。
图2示出了具有驱动装置8的图1所示的混合阀6。为了简化,仅示意性示出驱动装置8。混合阀6具有布置在进气通道4内的可摆动的阀瓣10和布置在废气再循环通道5内的可摆动的阀瓣11。布置在进气通道4内的阀瓣10略微大于布置在废气再循环通道5内的阀瓣11。阀瓣10,11的旋转轴12,13的间距约为较大的、布置在进气通道4内的阀瓣10的直径的80%。
阀瓣10,11通过唯一的电动机9来驱动。阀瓣10,11的摆动方向的走向是相同的,如附图中用箭头示出的。为此,驱动装置8具有第一个、引向布置在进气通道4中的阀瓣10的调节件14和第二个、引向布置在废气再循环通道5中的阀瓣11的调节件15。引向布置在进气通道4内的阀瓣10的调节件14具有带有多个齿轮17的齿轮传动装置16和离合器18。该离合器18具有空程19,通过该空程可以无需带动阀瓣10而驱动齿轮17。
引向布置在废气再循环通道5内的阀瓣11的调节件15具有用于移动控制部件21的控制凸轮20。控制部件21通过杠杆22与布置在废气再循环通道5内的阀瓣11相连。控制凸轮20布置在由齿轮传动装置16所驱动的轮23的外轮廓上。控制部件21构造为在外轮廓上滚动的滚子。
这两个阀瓣10,11由未示出的弹簧元件预加载到打开位置中。因此,驱动装置8将阀瓣10,11带动到关闭位置中。
图3示出了阀瓣10,11关于齿轮传动装置16的移动区域的打开角度α。布置在进气通道4内的阀瓣10的移动用I来标注,并且布置在废气再循环通道5内的阀瓣11的移动用II来标注。为了简化,移动区域以百分值来示出。在此应识别出,在移动区域的初始状态0%时,进气通道4的阀瓣10完全打开,而废气再循环通道5的阀瓣11完全关闭。在齿轮传动装置16的驱动位于移动区域的50%上时,两个阀瓣10,11完全打开。然后布置在进气通道4内的阀瓣10完全关闭,而布置在废气再循环通道5内的阀瓣11停留在完全打开位置。

Claims (10)

1.一种机动车内燃机(1)的混合阀(6),所述混合阀具有布置在进气通道(4)内的阀瓣(10)和布置在废气再循环通道(5)内的阀瓣(11),其中所述进气通道(4)和所述废气再循环通道(5)汇入到共同的汇流通道(7)中;并且所述混合阀具有用于驱动所述阀瓣(10,11)的驱动装置(8),其特征在于,所述阀瓣(10,11)的旋转轴(12,13)的间距小于最大的所述阀瓣(10)的直径,并且所述阀瓣(10,11)的回转移动的耦合是无碰撞的。
2.根据权利要求1所述的混合阀,其特征在于,同向的引导所述阀瓣(10,11)。
3.根据权利要求1或2所述的混合阀,其特征在于,所述驱动装置(8)具有唯一的电动机(9),并且所述电动机(9)通过相应的调节件(14,15)与所述阀瓣(10,11)相连。
4.根据权利要求3所述的混合阀,其特征在于,所述调节件中的至少一个调节件(14)具有带有多个齿轮(17)的齿轮传动器(16)。
5.根据权利要求4所述的混合阀,其特征在于,在一个所述调节件(14)与所述阀瓣(10)之间布置有离合器(18)。
6.根据权利要求5所述的混合阀,其特征在于,所述离合器(18)是具有空程(19)的牙嵌式离合器。
7.根据权利要求3至6中任一项所述的混合阀,其特征在于,所述调节件中的至少一个调节件(15)具有用于引导控制部件(21)的控制凸轮(20)。
8.根据权利要求7所述的混合阀,其特征在于,所述控制凸轮(20)布置在所驱动的轮(23)的外轮廓上,并且所述控制部件(21)是与所述阀瓣中的一个阀瓣(11)相连的、在所述控制凸轮(20)上滚动的滚子。
9.根据权利要求8所述的混合阀,其特征在于,具有所述控制凸轮(20)的所述轮(23)布置在所述齿轮传动器(16)的一个齿轮(17)上。
10.根据权利要求1至9中任一项所述的混合阀,其特征在于,在所述驱动装置(8)的中间位置中,两个所述阀瓣(10,11)是打开的,并且在末端位置时所述阀瓣(10,11)中的一个所述阀瓣或另一个所述阀瓣是闭合的。
CN201380016345.XA 2012-04-05 2013-03-26 机动车内燃机的混合阀 Expired - Fee Related CN104169561B (zh)

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US20150176548A1 (en) 2015-06-25
US9482194B2 (en) 2016-11-01

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