CN110325740B - 汽车液体摆式叶片泵 - Google Patents

汽车液体摆式叶片泵 Download PDF

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CN110325740B
CN110325740B CN201780087187.5A CN201780087187A CN110325740B CN 110325740 B CN110325740 B CN 110325740B CN 201780087187 A CN201780087187 A CN 201780087187A CN 110325740 B CN110325740 B CN 110325740B
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CN110325740A (zh
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R.斯夸西尼
A.迪帕斯
E.佩莱格里尼
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Pierburg Pump Technology GmbH
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C2/32—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having both the movement defined in groups F04C2/02 and relative reciprocation between co-operating members
    • F04C2/332—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having both the movement defined in groups F04C2/02 and relative reciprocation between co-operating members with vanes hinged to the outer member and reciprocating with respect to the inner member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/08—Rotary pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/08—Rotary pistons
    • F01C21/0809—Construction of vanes or vane holders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/18—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber
    • F04C14/22—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/18—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber
    • F04C14/22—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members
    • F04C14/223—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members using a movable cam
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/18—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber
    • F04C14/22—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members
    • F04C14/223—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members using a movable cam
    • F04C14/226—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members using a movable cam by pivoting the cam around an eccentric axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C2/32—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having both the movement defined in groups F04C2/02 and relative reciprocation between co-operating members
    • F04C2/332—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having both the movement defined in groups F04C2/02 and relative reciprocation between co-operating members with vanes hinged to the outer member and reciprocating with respect to the inner member
    • F04C2/336—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having both the movement defined in groups F04C2/02 and relative reciprocation between co-operating members with vanes hinged to the outer member and reciprocating with respect to the inner member and hinged to the inner member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
    • F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F04C2/3448—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member with axially movable vanes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
    • F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F04C2/348—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the vanes positively engaging, with circumferential play, an outer rotatable member

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

本发明涉及一种汽车液体摆式叶片泵(10)。每个摆式叶片(30)包括：圆形摆头(32)，其与转子环(16)处的相应的圆形底切凹部(70)一起形成摆式铰链(33)；圆形摆脚(34)，其布置为可径向偏移并可在相应的叶片槽(50)中枢转；以及连接摆头(32)和摆脚(34)的叶片腿(35)。叶片槽(50)的接触槽壁(54)在叶片槽(50)的开口区域中设有切向接触鼻(58)。摆式叶片(30)设置有接触路径(36)，接触路径具有接触路径表面(36')，其在接触扇区(CO)中与接触鼻(58)接触。接触路径表面(36')的径向内端限定内切向突起(40)。大致平面的接触槽壁(54)设有下潜凹部(56)，并且切向摆突起(40)暂时潜入下潜凹部(56)中。

Description

汽车液体摆式叶片泵
技术领域
本发明涉及一种用于提供加压液体的汽车液体摆式叶片泵，优选用加压润滑液体润滑汽车牵引发动机。更优选地，本发明涉及一种机械摆泵，其不是电驱动的，而是由汽车牵引发动机机械驱动，并且优选地设置为可变摆泵，其体积性能是可变的并且与泵的转速无关。
背景技术
与具有简单地沿着圆周壁滑动的转子叶片的传统叶片泵相比，摆泵在叶片处具有小得多的磨损并且具有更高的液压质量，因为由摆式叶片分开的泵腔非常流体紧密。摆泵的机械构造相对复杂，因为提供了可旋转的转子毂以及可旋转的转子环，并且径向连接转子环和转子毂的摆式叶片在其旋转路径处提供摆震荡。
如果应避免转子毂和偏心转子环之间的复杂传动齿轮，则经由摆式叶片，转子毂驱动转子环或转子环驱动转子毂。DE 10 2012 219 847A1和EP 2642073A2都公开了典型的汽车润滑剂摆泵。DE 10 2012 219 847A1公开了一种具有可切换控制环的可变摆泵，用于使转子环在最大偏心距位置和最小偏心距位置之间移动。旋转力从转子毂或转子环传递到摆式叶片。在支撑转子环的控制环的最大偏心距位置中，泵性能最大化，使得最大旋转力在转子毂和转子环之间传递，特别是在从动转子部分和摆式叶片之间传递。但是，旋转力从转子毂或转子环传递到摆式叶片的接触扇区可以很小，以至于暂时不会用旋转力驱动单个摆式叶片或仅驱动单个摆式叶片。这导致传递力峰值，导致相对高的机械磨损。
发明内容
本发明的一个目的是提供一种具有增加的接触扇区的汽车液体摆泵。
该目的通过具有权利要求1的特征的汽车液体摆泵来解决。
根据本发明的汽车液体摆泵设置有：静态泵壳体；可旋转的转子环；可旋转且不可偏移的转子毂，其包括多个基本上径向的叶片槽；以及多个摆式叶片，其机械地连接转子环和转子毂。可旋转的转子环可以设置为可偏移的或不可偏移的。如果可旋转的转子环设置为不可偏移的，则可旋转的转子环总是处于最大偏心距的位置。如果可旋转的转子环设置为可偏移的，则可旋转的转子环可以移位并定位在最大偏心距位置和最小偏心距位置之间。摆式叶片将旋转泵腔室彼此分开，并在转子毂和转子环之间传递旋转力。转子毂处的叶片槽不一定具有精确的径向取向，但槽的方向必须具有大的径向分量。
摆泵是无齿轮的，因此转子毂和转子环之间以及外部齿轮不会传递旋转力。旋转力仅通过摆式叶片从从动转子毂传递到转子环。
每个摆式叶片包括圆形摆头，其与转子环处的相应的圆形底切凹部一起形成摆式铰链。摆式叶片在转子环处不可偏移但可枢转地铰接。摆式铰链设置在摆式叶片的径向外端处。
圆形摆脚设置在摆式叶片的径向内端处。摆脚可径向偏移地并且可枢转地布置在相应的线性叶片槽中。叶片槽基本上是具有平行和平面槽壁的线性叶片槽。圆形摆脚不是闭合的圆形，而是设有圆形和圆柱形部分，这确保了摆脚始终以基本上流体密封的方式被引导和支撑在叶片槽中。圆形部分总是与相应的叶片槽壁限定滑动接触线。摆脚的其他部分不一定是圆形的。
摆头和摆脚通过叶片腿连接。摆式叶片优选地设置为单个单件。
叶片槽设置有接触槽壁，该接触槽壁基本上是平面的。切向接触鼻设置在叶片槽的开口区域中，用于在摆式叶片和转子毂之间传递旋转力。如果转子毂驱动转子环，则接触鼻部设置在叶片槽的开口边缘的滞后侧。如果转子环驱动转子毂，则接触鼻部设置在叶片槽的开口边缘的前进侧。
接触鼻设置为在叶片槽的轴向长度上延伸的轴向轮廓。摆泵的轴向方向是转子毂的旋转轴线的方向。
摆式叶片设置有接触路径，该接触路径由接触路径表面限定，该接触路径表面在泵接触扇区内与接触鼻接触。在最大偏心距处时，接触路径表面仅在泵接触扇区中与接触鼻力传递接触，而接触路径表面在泵接触扇区外部不与接触鼻接触。泵接触扇区越大，越多平均数量的接触路径表面和接触鼻的对在转子毂和摆式叶片之间传递旋转力。
接触路径表面的径向内端限定切向突起，切向突起从摆式叶片腿的主体切向突出。接触路径的径向范围相对较长，并且优选地以某种方式弯曲，使得接触路径优选地限定凹面。接触路径的径向范围越长，径向内切向突起在切向/圆周方向上从叶片腿突出越多。
与接触路径相对的配合接触槽壁在摆脚移动并且可以接触的区域中是完全平面的，但是在叶片槽的径向外端分处设置有下潜凹部。下潜凹部设置在接触鼻的径向内侧并且优选地邻近接触鼻。
切向摆突起暂时潜入下潜凹部中，从而始终避免摆式叶片的径向内切向突起与接触槽壁之间的机械接触，而与旋转位置和偏心距无关。下潜凹部允许显着增加接触路径的径向范围，使得接触扇区也显着增加。结果，每个摆式叶片的平均机械力传递载荷相应地减小，从而泵的可靠性和寿命增加，和/或更高的总旋转力可以在转子毂和摆式叶片之间传递。
接触扇区是旋转扇区，其中接触路径表面与接触鼻力传递接触。
根据本发明的优选实施例，转子毂或转子环是机械驱动的。摆泵不是由单独的电动机驱动，而是由发动机机械驱动，该发动机可以是汽车装置的牵引发动机。由于摆泵由牵引发动机机械驱动，摆泵的转速在很宽的范围内变化，例如500至5000rpm。结果，摆泵的转速与摆泵的所需液压性能不一致。
因此，摆泵设置有可偏移且不可旋转的控制环，其可相对于泵壳体在最小偏心距位置和最大偏心距位置之间偏移。偏心距是转子毂和转子环的旋转轴线的距离。转子环由控制环可旋转且可共同偏移地支撑。偏移路径可以是线性的或可以是圆形的。泵的容积可以通过将控制环偏移到合适的位置来调整，从而限定合适的容积性能。可变摆泵中的几何限制是严格的，因此难以实现大的接触扇区。从径向方向看，相对长的接触路径在转子毂和摆式叶片之间提供相对平滑的旋转力传递。
优选地，摆式叶片的内切向突起至少在可偏移控制环的最大偏心距位置处潜入相应的下潜凹部中，因为最大偏心距构造是相对于待传递的高旋转力的最关键情况。更优选地，切向突起在任何偏心位置处潜入凹部中。
根据优选实施例，接触路径的径向范围很大，使得接触扇区是由两个相邻的摆式叶片之间或相邻的叶片槽之间的角度限定的腔室扇区的至少1.1倍。因此，总是至少一个摆式叶片在每个偏心距处并且特别是在最大偏心距处在转子毂和转子环之间传递旋转力。结果，旋转力被连续传递，从而避免了叶片处的高传递力峰值。
优选地，接触路径表面的径向外端限定外切向突起。转子环设置有与相应的圆形底切凹部相邻的径向凹部，使得外切向叶片突起暂时潜入相应的径向凹部中。外切向突起允许最大程度地延伸接触路径的径向范围，使得接触扇区可以最大化。
根据本发明的优选实施例，参考接触槽壁的大致平面，切向下潜凹部在接触槽壁处的切向深度至少为0.1mm。
优选地，转子毂驱动转子环。转子毂由外部装置机械或电驱动。
附图说明
参考附图描述本发明的一个实施例，其中：
图1示出了根据本发明的打开的汽车液体摆泵的俯视图，
图2示出了图1的放大视图，示出了接触扇区CO中的摆式叶片，并且
图3示出了图1的放大视图，示出了在旋转到接触扇区CO之前的摆式叶片。
具体实施方式
图1示出了打开的，即没有盖的汽车液体摆泵10，其设置为机械驱动。泵10是所谓的可变摆泵，其容积性能可以独立于转速来控制。
摆泵10可以机械地连接到牵引发动机并由牵引发动机驱动，例如通过内燃机。摆泵10提供加压润滑液体，例如用于牵引发动机的润滑和/或用于向液压装置提供致动力。
摆泵10设置有金属泵壳体12，其容纳可偏移且不可旋转的控制环18，可旋转且可偏移的转子环16和可旋转且不可偏移的转子毂14。控制环18设置成可绕枢轴元件20枢转，使得控制环18的偏移路径不是精确线性的而是圆形的。控制环18的偏移位置由两个反作用液压控制室22,24和预加载弹簧26限定。
控制环18支撑可旋转的转子环16，使得控制环18限定转子环16的偏移位置，从而限定转子环16相对于转子毂14的偏心距。由此，转子环16可以偏移并定位在最大偏心距位置(如图1所示)和最小偏心距位置之间，其中偏心距可以接近零或甚至为零，从而仅可以实现最小的容积性能或根本不能实现容积性能。
摆泵10设置有七个摆式叶片30，其机械地连接转子环16和转子毂14。转子毂14由外部动力装置机械驱动，例如通过内燃机，并且直接驱动摆式叶片30并间接驱动转子环16。转子毂14具有大致圆柱形的表面15并且包括七个径向叶片槽50，用于引导叶片30。叶片槽50在圆柱形表面15处限定槽开口。
摆式叶片30具有两个功能，即将旋转泵室彼此分开并将旋转力从转子毂14传递到转子环16，以使转子环16与转子毂14共同旋转。
每个摆式叶片30在径向外端处包括圆形摆头32，该摆头32可枢转地支撑在转子环16处的相应圆形底切凹部70中。圆形摆头32和圆形底切凹部70一起限定摆式铰链33，使得摆式叶片30可相对于转子环16摆动。
摆式叶片30在其径向内端包括圆形摆脚34。摆脚34不是完全圆形的，而是设有两个圆形部分341,342，它们相对于摆脚中心设有恒定的脚半径r。摆脚34在相应的叶片槽50中以近似流体密封的方式设置成可枢转并且可径向偏移。
叶片槽50由四个径向槽壁限定，所述径向槽壁与径向槽中心轴线平行地设置并且由旋转的转子毂14和静态壳体侧壁限定。叶片槽50在由转子毂14限定的滞后叶片槽壁54和平行前进叶片槽壁52之间具有切向槽宽w。槽宽w约为叶片脚34的脚半径r的两倍：w＝2×r。
滞后叶片槽壁限定了接触槽壁54并且在叶片槽50的开口区域中设置有切向接触鼻58。切向接触鼻58在其整个轴向范围内具有恒定的横截面并且具有至少几毫米的半径。接触鼻58不是锋利的边缘。
摆式叶片30设置有由凹形接触路径表面36'限定的接触路径36，凹形接触路径表面36'设置在叶片30的滞后侧，并且当相应的叶片30和槽50在接触扇区C0内旋转时，与相应的接触鼻58接触。接触扇区CO是旋转扇区，其中接触路径表面36'与相应的接触鼻58机械地且力传递地接触，以将旋转力从转子毂14传递到摆式叶片30并且经由叶片30传递到转子环16。
在本实施例中，接触扇区CO是由两个相邻的叶片槽50或两个相邻的摆式叶片30所包围的角度所限定的腔室角度CH的1.5倍。这意味着，在如图1所示的最大偏心距位置处，将旋转力从转子毂14传递到转子环16的摆式叶片30的平均数量在最大偏心距位置处约为1.5。在其他偏心距位置处，接触扇区小于在最大偏心距位置处。
接触路径表面36'的径向内端限定了内切向突起40，该内切向突起40从连接摆头32和摆脚34的叶片腿35切向突出。摆式叶片30由单个叶片主体31限定。
大致平面的接触槽壁54设置有径向向内邻近接触鼻58的凹形下潜凹部56。参考接触槽壁54的大致平面，下潜凹部56具有大于0.5mm的切向深度d。在如图1所示的最大偏心距位置和接触扇区CO内的接触阶段期间，内切向摆突起40潜入下潜凹部56中而不与下潜凹部56的表面接触。
接触路径表面36'的径向外端限定了从叶片腿35切向突出的外切向突起38。外切向突起38径向向内设置在圆形摆头32附近。转子环16设有切向地邻近圆形底切凹部70的径向凹部72。径向凹部72和底切凹部70设置在转子环16的内周表面74处。在转子旋转期间，外切向突起38暂时潜入相应的径向凹部72中，但优选不在接触扇区CO中。

Claims (8)

1.一种汽车液体摆式叶片泵(10)，包括：
泵壳体(12)，
可旋转的转子环(16)，
可旋转且不可偏移的转子毂(14)，其包括多个基本上径向的叶片槽(50)，和
多个摆式叶片(30)，其机械连接转子环(16)和转子毂(14)，
每个摆式叶片(30)包括：
圆形摆头(32)，其与转子环(16)处的相应的圆形底切凹部(70)一起限定摆式铰链(33)，
圆形摆脚(34)，其布置为可径向偏移并可在相应的叶片槽(50)中枢转，以及
连接摆头(32)和摆脚(34)的叶片腿(35)，
其中，叶片槽(50)的接触槽壁(54)在叶片槽(50)的开口区域中设有切向接触鼻(58)，
其中，摆式叶片(30)设置有接触路径(36)，接触路径具有接触路径表面(36')，其在旋转接触扇区(CO)中与接触鼻(58)接触，
其中，接触路径表面(36')的径向内端限定内切向突起(40)，
其中，大致平面的接触槽壁(54)设有下潜凹部(56)，
其中，内切向摆式突起(40)暂时潜入下潜凹部(56)中，而不与下潜凹部的表面接触，并且
其中，始终避免摆式叶片的径向内切向突起与接触槽壁之间的机械接触，而与旋转位置无关。
2.根据权利要求1所述的汽车液体摆式叶片泵(10)，其中
转子毂(14)或转子环(16)由外部发动机机械驱动，
可偏移且不可旋转的控制环(18)设置成可相对于泵壳体(12)在最小偏心距位置和最大偏心距位置之间偏移，并且
转子环(16)由控制环(18)可旋转地和可共同偏移地支撑。
3.根据权利要求2所述的汽车液体摆式叶片泵(10)，其中，内切向突起(40)在控制环(18)的最大偏心距位置处潜入下潜凹部(56)中。
4.根据前述权利要求中任一项所述的汽车液体摆式叶片泵(10)，其中，内切向突起(40)在接触扇区(CO)内潜入下潜凹部(56)中。
5.根据权利要求1至3中任一项所述的汽车液体摆式叶片泵(10)，其中，接触扇区(CO)是由两个相邻的摆式叶片(30)之间的角度限定的腔室扇区(CH)的至少1.0倍。
6.根据权利要求1至3中任一项所述的汽车液体摆式叶片泵(10)，其中，接触路径表面(36')的径向外端限定外切向突起(38)，并且转子环(16)设置有与圆形底切凹部(70)相邻的径向凹部(72)，使得相应的外切向突起(38)暂时潜入相应的径向凹部(72)中。
7.根据权利要求1至3中任一项所述的汽车液体摆式叶片泵(10)，其中，比照接触槽壁(54)的大致平面，下潜凹部(56)的切向深度(d)为至少0.1mm。
8.根据权利要求1至3中任一项所述的汽车液体摆式叶片泵(10)，其中，转子毂(14)驱动转子环(16)。
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