CN109989803A - 用于排出内燃机曲轴箱中窜漏气体的装置 - Google Patents
用于排出内燃机曲轴箱中窜漏气体的装置 Download PDFInfo
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- 210000002445 nipple Anatomy 0.000 description 2
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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- F01M13/00—Crankcase ventilating or breathing
- F01M13/0011—Breather valves
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- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
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- F01M13/00—Crankcase ventilating or breathing
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- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
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- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
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- F16L39/02—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies for hoses
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- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
- G01M3/2815—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes using pressure measurements
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Abstract
本发明涉及一种用于排出内燃机的曲轴箱中的窜漏气体(5)的装置(1),其中,所述窜漏气体(5)能够通过软管装置(2)导向新鲜空气装置(3),其中,所述软管装置(2)一侧连接或者能够连接在与新鲜空气装置(3)对应配设的构件(8)上,以及另一侧连接或者能够连接在与曲轴箱处于流体连通的构件上,其中,所述软管装置(2)具有窜漏气体导管(11)。以如下方式避免软管装置(2)不密封或者未正确装配的风险,即所述软管装置(2)具有诊断导管(12),其中,如果不密封地连接或者未连接软管装置(2),则能够通过所述诊断导管(12)检测到故障气流(12)。
Description
技术领域
本发明涉及一种用于排出内燃机曲轴箱中的窜漏气体的装置。
背景技术
在内燃机的运行中,窜漏气体由于在活塞和气缸之间不可避免的泄露而进入到内燃机的曲轴箱中。借助软管装置将窜漏气体导出,从而不在曲轴箱中产生不允许的高气压。为了避免由于加载有害物质的窜漏气体造成环境污染,将所述窜漏气体导入新鲜空气装置中。由此能够使窜漏气体重新输入内燃机的燃烧中。软管装置为此具有窜漏气体导管。
目前由现有技术已知用于将软管装置连接到相应的构件上的不同可能性。
由专利文献DE 2004 063 459 A1已知一种装置,其中,软管通过接管连接到新鲜空气装置的导管上。软管为此以出口区段直接插套在接管的入口区段上。为了紧固连接而在所述出口区段设有至少一个窗口状的侧开口,构造在入口区段上的倒钩嵌入所述侧开口中。至少在出口区段上通过成型和/或材料选择如下设计软管,使得所述软管在插套到接管的入口区段上时灵活地变形。所述至少一个侧开口设计为沿周向延伸30°至45°的长孔。在接管的入口区段上设计有两个环状槽。在所述环状槽中分别设置有密封环。软管设计为波形管。
由专利文献WO 2007/000125 A1已知一种用于排出内燃机曲轴箱中的窜漏气体的装置。所述装置具有用于将软管与套筒相连的耦连系统。所述软管在其端部具有接管,所述接管能够插入套筒中并且所述接管在其外侧上具有至少一个环状槽和固定轮廓。套筒在其外侧上具有卡锁轮廓。设有相对于套筒和接管单独制造的耦连元件,所述耦连元件从外部插套在接管上,其中,所述耦连元件具有多个卡锁钩,所述卡锁钩嵌入卡锁轮廓中。耦连元件具有至少一个固定钩,所述固定钩与固定轮廓配合作用以便使耦连元件沿轴向固定在接管上。软管可以和相应的接管一同设计为吹塑件。每个卡锁钩都配设有脱扣杆。通过操作所述脱扣杆能够使相应的卡锁钩从卡锁轮廓上脱开卡锁。脱扣杆构成了相应卡锁钩的延长部。基础环的区域在此用作通过脱扣杆延长的卡锁钩的旋转支承。
按照现有技术的装置尚不是最佳的设计。尽管简化了软管的连接,然而仍必须确保避免不期望的不密封的或者未正确装配的软管装置。
发明内容
因此本发明所要解决的技术问题在于,避免软管装置不密封或者未正确装配的风险。
本发明所要解决的技术问题目前通过一种用于排出内燃机的曲轴箱中的窜漏气体的装置解决,在所述装置中,窜漏气体能够通过软管装置导向新鲜空气装置,其中,软管装置在一侧连接或者能够连接在与新鲜空气装置对应配设的构件上,并且在另一侧连接或者能够连接在与曲轴箱处于流体连通的构件上,其中,所述软管装置具有窜漏气体导管,按照本发明,所述软管装置具有诊断导管,其中,如果软管装置不密封或者未被密封地连接或者未被连接,则能够通过所述诊断导管检测到故障气流。这具有的优点在于,确保了软管装置的通风功能。如果软管装置被正确地装配并且软管装置自身是密封的,则没有故障气流流经诊断导管。然而如果软管装置不密封、未被正确连接或者根本没有被连接,则有借助压力传感器被检测到的故障气流流经诊断导管。故障气流在此导向新鲜空气装置、尤其吸气管。
如果软管装置正确地装配并且是密封的,则诊断导管自由的、开放的端部密封地贴靠在构件上。外罩作为封闭的、密封的端部固定在涡轮增压机壳体上。在构成了诊断导管端部的耦连件的端侧和构件之间优选布置有密封环,以便确保连接的密闭性。
在特别优选的设计方案中,软管装置具有管中管(Rohr-In-Rohr)的结构。软管装置为此具有内部软管和外部软管,其中,所述内部软管布置在所述外部软管内。目前通过内部软管排出窜漏气体。所述内部软管因此用作窜漏气体导管。在满负荷运行中,窜漏气体从分油器输送至新鲜空气系统中。在满负荷时,废气涡轮增压机确保较高的增压并且在吸气管中存在升高的压强。在内燃机的部分负荷中,在吸气管中产生负压并且涡轮增压机仅提供较小的增压或者不提供增压。在此,新鲜空气从进气系统、即从涡轮增压机通过窜漏气体导管输送至抽吸管中。在内部软管和外部软管之间尤其留有环状空间,所述环状空间现在用作诊断导管。如果内部软管不密封,则又在诊断导管、也就是内部软管和外部软管之间的环状空间中产生故障气流。这种装置仅需要较小的结构空间。在特别优选的设计方案中,外部软管和/或内部软管设计为波状管。
软管装置具有耦连件,其中,内部软管嵌接在所述耦连件的第一外周面上并且外部软管嵌接在第二外周面上,其中,进气开口通入耦连件中的外部导管中,其中,外部导管用作诊断导管。
软管装置在一侧能够连接在油分离器壳体上,其中,所述油分离器壳体与吸气管处于流体连通并且所述油分离器壳体具有与诊断导管处于流体连通的诊断通道。在此能够借助压力传感器检测诊断通道中的压力波动。故障气流被导入吸气管中并且能够在这里借助压力传感器被检测。当在涡轮增压机处错误地装配、外部软管损坏和在吸气管处错误地装配时,形成了通向外部空气的开口,吸气软管能够由此吸入空气。通过内燃机的换气调节识别这种故障空气,接着识别并且报出故障。
耦连件建立了内部软管和外部软管之间以及例如和连接管之间的连接。耦连件具有第一外周面,内部软管插套在所述第一外周面上。此外耦连件具有第二外周面,外部软管插套在所述第二外周面上。为此可以基本上将耦连件设计为管形。现在能够通过内部导管将窜漏气体从该内部软管继续导送。此外耦连件具有外部导管,所述外部导管尤其至少部分地在耦连件的壳体表面中延伸。诊断导管的故障气流能够通过所述外部导管向诊断通道导流。所述外部导管在外周面上具有流通口,在插入的状态下由连接管的内周面限定所述流通口。优选通过两个布置在内部件的外周上的密封环、尤其是相应的O形环限定内部空间。
由此提供了能够特别简便地装配的连接,即耦连件能够借助卡锁连接而连接在接管上。
能够以如下简单的制造方式建立所述卡锁连接,即在外部环上设计有至少一个卡锁凸鼻,其中,所述至少一个卡锁凸鼻与设计在接管的外周面上的保持轮廓配合作用。
软管装置能够在一端连接在油分离器壳体上,其中所述油分离器壳体具有与吸气管和诊断导管处于流体连通的诊断通道。故障气流通过所述诊断通道导流向吸气管。在吸气管中可以布置相应的检测故障气流的传感器。所述传感器可以设计为压力传感器。
所述构件之一、尤其是油分离器具有连接管。软管装置在每个端部都具有耦连件。在优选设计方案中,在每个端部都布置有相应的耦连件,其中,所述耦连件不必结构相同地设计。
耦连件自身可以设计为双件式或多件式。这样的两个或者多个部分能够通过焊接连接、粘接、插塞连接或者类似的方式彼此相连,以便实现尽可能密封的连接。连接管和耦连件优选通过卡锁连接彼此相连。所述卡锁连接尤其设计为能够打开的。耦连件为此可以具有从外部围卡连接管的环,其中,所述环通过卡锁连接与连接管的外表面配合作用。所述环可以为此具有相应的卡锁凸鼻,在已装配好的状态中,所述卡锁凸鼻在连接管的外周面上啮合在卡锁轮廓处。这形成了能够特别简便地操作的连接。
在备选的设计方案中,软管装置能够通过螺纹连接与相应的构件相连。
附图说明
目前有对按照本发明的装置进行设计和扩展设计的多种可能性。以下根据附图和配属的附图说明详细阐述本发明的一种优选设计方案。在附图中:
图1以示意性的剖视图示出了连接在油分离器上的软管装置的端部,
图2以另一幅示意性的剖视图示出了软管装置的另一部分,所述部分连接在涡轮增压机壳体上,
图3以示意性的立体视图示出了软管装置的耦连件,所述耦连件用于连接到油分离器壳体上的接管上,
图4以示意性的分解视图示出了耦连件。
具体实施方式
从图1至图4中可以清楚地看出用于排出内燃机未示出的曲轴箱中的窜漏气体5的装置1。窜漏气体5能够通过软管装置2导向新鲜空气装置3。在此仅示出了废气涡轮增压机4的一部分。相应的窜漏气体5(在此通过相应的箭头表示)从油分离器6出发通过软管装置2导向涡轮增压机的压缩面。在此尤其示出了油分离器6相应的油分离器壳体7。油分离器6与曲轴箱处于流体连接。软管装置2在一侧连接在与新鲜空气装置对应配设的构件8、即废气涡轮增压机壳体4上,并且另一侧连接在与曲轴箱处于流体连接的构件9、即此处的接管10上。所述接管10装配在油分离器壳体7上。软管装置2目前具有窜漏气体导管11。
现在以如下方式避免开篇提到的缺点,即软管装置2具有诊断导管12,其中,如果软管装置不密封、未被密封地连接或者根本没有被连接,则能够通过所述诊断导管12检测到故障气流13。在此又通过相应的箭头表示故障气流13。在软管装置2正确装配时,诊断导管12封闭地终止在废气涡轮增压机壳体4处的端侧14上。在此,在诊断导管12的流通口的端面与废气涡轮增压机壳体4或者端侧14之间尤其布置有密封环15。
在特别优选的设计方案中,软管装置2具有外部软管16和内部软管17。内部软管17用作窜漏气体导管,也就是说窜漏气体5在内部软管17的内部导流。外部软管16具有大于内部软管17的直径。在外部软管16和内部软管17之间留有环状空间18,所述环状空间构成了诊断导管12的一部分。
软管装置2现在具有两个耦连件19、20。所述耦连件19、20在软管侧、也就是在外部软管16和内部软管17的方向上具有第一外周面21,内部软管17插套在所述第一外周面上。此外,耦连件19、20具有第二外周面22,外部软管16插套在所述第二外周面上。在第一外周面21和第二外周面22之间设计有至少一个、尤其多个进气开口23,所述进气开口通入外部导管24中。所述外部导管构成了诊断导管12的一部分。
耦连件19、20设计为管形并且在所述耦连件的内部、也就是在相应的圆柱空腔25中导流窜漏气体。空腔25因此构成了窜漏气体导管11的一部分。耦连件19、20的这样的第一区域可以由第一构件26或者27构成。为了将软管装置2连接到新鲜空气装置3或者废气涡轮增压机壳体4上,目前在此尤其设置有弯折地设计的构件28,所述构件例如通过焊接或者粘接或者接合连接(Fügeverbindung)与构件27相连。构件28目前具有用于窜漏气体的通道29和通道30,所述通道30构成了诊断导管12的一部分。通道30端侧地终结在废气涡轮增压机壳体4处并且在此通过密封环15密封地布置。通道29略微进一步地延伸至废气涡轮增压机壳体4中并且在此在外周面上借助密封环31密封地布置。相应的管形壁区域32在此限定了通道29。密封环31贴靠在管形壁区域32的外周面上。
以下详细地描述图1和图4:
构件26与另一个构件33相连,外部导管24在所述构件33中延伸。外部导管24在此从外周面34上通出,所述外周面34位于两个环状槽35、36之间。在环状槽35、36中分别布置有O形环37、38。外周面34在此与接管10的内周面39限定了环状空间的部分边界。在构件9或者相应的接管10内,诊断通道40从内周面39穿过,所述诊断通道又通入废气涡轮增压机的另一个诊断通道41中。O形环37、38在此密封了所述外周面34相对于接管10的相应贴靠的内周面之间的环状空间。
耦连件19尤其与废气涡轮增压机壳体4螺纹连接。耦连件20借助卡锁连接而连接在接管10上。耦连件20为此具有外部环42,在所述外部环处设计有至少一个卡锁凸鼻43。外部环42通过两个臂44与其余的构件相连。如果将构件9推套在接管10上,则卡锁凸鼻43通过保持轮廓45推套在接管10的外周上并且在所述保持轮廓上啮合。
Claims (9)
1.一种用于排出内燃机的曲轴箱中的窜漏气体(5)的装置(1),其中,所述窜漏气体(5)能够通过软管装置(2)导向新鲜空气装置(3),其中,所述软管装置(2)在一侧连接在或者能够连接在与新鲜空气装置(3)对应配设的构件(8)上,以及在另一侧连接在或者能够连接在与曲轴箱处于流体连通的构件(9)上,其中,所述软管装置(2)具有窜漏气体导管(11),其特征在于,所述软管装置(2)具有诊断导管(12),其中,如果不密封地连接或者未连接软管装置(2),则能够通过所述诊断导管(12)检测到故障气流(13)。
2.按权利要求1所述的装置,其特征在于,在软管装置(2)正确装配的状态下,所述诊断导管(12)的开放的端部密封地贴靠在其中一个构件(8、9)上。
3.按权利要求2所述的装置,其特征在于,在所述软管装置(2)的端侧、即诊断导管(12)的端部和构件(8)之间布置有密封环(15)。
4.按照前述权利要求之一所述的装置,其特征在于,所述软管装置(2)具有外部软管(16)和内部软管(17)。
5.按前述权利要求所述的装置,其特征在于,所述内部软管(17)用作窜漏气体导管(11)并且外部软管(16)和内部软管(17)之间的环状空间(18)用作诊断导管(12)。
6.按前述权利要求之一所述的装置,其特征在于,所述软管装置(2)具有至少一个耦连件(19、20),其中,内部软管(17)嵌接在所述耦连件(19、20)的第一外周面(21)上并且外部软管(16)嵌接在所述耦连件(19、20)的第二外周面(22)上,其中,进气开口(23)通入耦连件(19、20)内的外部导管(24)中,其中,所述外部导管(24)用作诊断导管(12)。
7.按前述权利要求之一所述的装置,其特征在于,所述软管装置(2)一侧能够连接在油分离器壳体(7)上,其中,所述油分离器壳体(7)与吸气管处于流体连通并且所述油分离器壳体(7)具有与诊断导管(12)处于流体连通的诊断通道(41)。
8.按前述权利要求之一所述的装置,其特征在于,所述耦连件(19)能够借助卡锁连接而连接在接管(10)上。
9.按前述权利要求所述的装置,其特征在于,在耦连件(19、20)的外部环(42)上设计有至少一个卡锁凸鼻(43),其中,所述至少一个卡锁凸鼻(43)与设计在接管(10)的外周面上的保持轮廓(45)配合作用。
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| EP3492794A1 (de) | 2019-06-05 |
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| KR20190065135A (ko) | 2019-06-11 |
| EP3492794B1 (de) | 2021-04-14 |
| CN109989803B (zh) | 2021-11-19 |
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