CN103282653B - 具有保持件的活塞泵 - Google Patents

具有保持件的活塞泵 Download PDF

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CN103282653B
CN103282653B CN201180060935.3A CN201180060935A CN103282653B CN 103282653 B CN103282653 B CN 103282653B CN 201180060935 A CN201180060935 A CN 201180060935A CN 103282653 B CN103282653 B CN 103282653B
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piston pump
component
maintenance part
cylinder element
spring
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CN103282653A (zh
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O·格特纳
H·雅恩
M·齐默曼
D·戈塞
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Robert Bosch GmbH
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/04Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/40Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/40Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system
    • B60T8/4031Pump units characterised by their construction or mounting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/40Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system
    • B60T8/4068Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system the additional fluid circuit comprising means for attenuating pressure pulsations
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/04Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/0404Details or component parts
    • F04B1/0421Cylinders
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B11/00Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B11/00Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
    • F04B11/0091Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using a special shape of fluid pass, e.g. throttles, ducts
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12Casings; Cylinders; Cylinder heads; Fluid connections
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/125Cylinder heads
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/001Noise damping
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/007Cylinder heads
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/16Casings; Cylinders; Cylinder liners or heads; Fluid connections
    • F04B53/162Adaptations of cylinders

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Transportation (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Reciprocating Pumps (AREA)

Abstract

一种活塞泵(10),特别用于能够电控的车辆制动装置的液压设备,所述活塞泵具有缸元件(22),在所述缸元件内部形成具有出口端的压力腔(32),在所述缸元件外部,在具有第一保持件(40)的构件(38)上保持有限制出口元件(42)。

Description

具有保持件的活塞泵
技术领域
本发明涉及一种活塞泵,其特别设置用于液压的车辆制动装置,该活塞泵具有缸元件,在缸元件内部形成具有出口端的压力腔。
背景技术
已知的活塞泵具有缸元件,在缸元件中形成压力腔。活塞可轴向移动地在该压力腔中导引。一方面,活塞可以在轴向上被驱动做往返冲程运动,该往返冲程运动以已知的方式实现流体的传输。为了避免形成噪音的压力脉冲,这种活塞泵通常在液压方面置于缓冲器腔室和节流件之后,缓冲器腔室和节流件二者都设置在缸元件之外并且通常还与活塞泵分离地设置。
在文献DE10314979B3中公开了这种活塞泵。为了避免在封闭的液压***中形成噪音的压力脉冲,已知的活塞泵具有用于减振的置于压力介质出口之后的节流件。在此,该节流件包括在液压方面前置的过滤器。压力介质出口至少部分地沿着衬套的外表面导引,并且在此部分的区域中,过滤器和节流件单件式地构造在衬套的外表面上。
发明内容
根据本发明提供一种活塞泵,特别地用于能够电控的车辆制动装置的液压设备,所述活塞泵具有缸元件,在所述缸元件内部形成具有出口的压力腔。在所述缸元件上,在具有第一保持件的构件上保持有限制出口元件。换句话说,在本发明的缸元件上设有具有用于限制出口元件的第一保持件的构件。该限制出口元件可以特别优选为节流件。
在本发明的一个优选设计方案中,节流件构造成节流盘。为此,随后容纳节流盘的第一保持件可以具有支承面。因此,该节流盘可以限定性地预紧。节流盘也可以集成在根据本发明的这种第一保持件中。通过这种第一保持件可以实现节流件的非常精确的打开压力。
该节流件自身在液压方面后置于活塞泵的出口阀,即在流动方向上设置在活塞泵的出口阀之后。节流件可以设置在泵孔中,或者设置在泵壳的出口通道中,并且根据本发明保持在第一保持件中。该节流件用于缓冲通过活塞泵传输的流体的压力脉冲,活塞泵由于其脉冲式传输方式而引起该压力脉冲。
在具有用于限制出口元件的第一保持件的构件中,优选另外设置或集成有用于弹簧的第二保持件。在一个优选的设计方案中,该弹簧是用于出口阀-闭合体的出口阀弹簧。该弹簧放置在构件中的第二保持件上。对此,第二保持件可以具有支承面。因此,活塞泵的出口阀的、包括出口阀-闭合体和弹簧的构件由第二保持件来支撑。
在一个可替换的设计方案中,弹簧集成在第二保持件中。在此,弹簧可以容纳在该第二保持件中。根据弹簧的设计方案,保持件以不同形式构成。如果弹簧是螺旋弹簧,那么保持件具有用于螺旋弹簧的盆状容纳部。如果弹簧是板簧或涡卷弹簧,那么容纳部构造成平面式。
此外,优选在构件中设置或集成有用于液压缓冲器的第三保持件。
在此,传输的流体优选首先通过出口阀的开孔流入到缓冲腔中。然后通过根据本发明的构件上的其他限定的开孔实现流出到所提及的节流盘。这些开孔可以构造不同的形式,特别为圆形或狭缝形。节流盘由于环流或压力差而弯曲,并且流体可以经由其他限定的开孔流出。在此,同时将缓冲容积针对出口密封,并由此实现节流件的强迫穿流
缓冲器形成液压容量,该液压容量同样被强迫穿流,并由此实现优化的响应性能,因为节流件形成用于流体的、后置的液压阻抗。
在本发明的构件中,优选还设有用于液压蓄能器的组装腔。该蓄能器可以形成所提及的液压容量的一部分。
可选地,为了补偿构件的组装腔的误差以及实现在节流件之后的出口孔,可以设置呈细支座(Füsschen)形式的间隔保持件。
构件与至少一个保持件一起优选构造成注塑件、金属车削件或冷锻件。
根据本发明的活塞泵的构造,即该活塞泵具有带有用于限制出口元件的第一保持件以及其他有利的保持件(设置在该构件中或集成在该构件中)的构件,具有的优点是,仅在一个构件中实现多重功能。这些功能之间的误差可以通过所述仅一个构件的相应地精确的成型而保持很小。
该构件特别用于出口阀和出口孔之间的液压连接,该出口阀实现与压力腔的分离。因此,出口阀和出口孔之间的这种液压连接可以在没有显著更多消耗的同时具有可压缩的体积。
本发明的活塞泵特别地具有泵缸,该泵缸安装在液压块中。泵缸形成在本发明意义上的缸元件,并且具有作为压力腔的圆柱形凹部,活塞在该圆柱形凹部中可轴向位移地被导引。
本发明的活塞泵特别用作车辆的制动装置中的泵,并且用于车轮制动缸内的压力的控制。这种制动装置以通常已知的形式包括车辆滑动控制***(ABS或ASR)、驱动防滑控制***(TCS)、用作转向辅助的制动装置(FDR)、电力液压制动装置(EHB)和/或电子稳定程序(ESP)。在这样的制动装置中,泵用于将制动液从车轮制动缸传输回主制动缸中,和/或用于将制动液从储备容器传输到车轮制动缸中。
附图说明
下面将参照示意性附图对本发明的实施例进行详细描述。其中:
图1示出了具有本发明构件的第一实施例的活塞泵的纵截面图,该构件具有用于螺旋弹簧的容纳部;
图2示出了具有本发明构件的第二实施例的活塞泵的纵截面图,该构件具有用于涡卷弹簧的容纳部;
图3示出了图1的构件的倾斜的俯视图;
图4示出了图3中Ⅳ-Ⅳ线的截面图;
图5示出了图1的构件的倾斜的仰视图;
图6示出了图5的装有限制出口元件的视图;
图7示出了图1的构件的一种变型的倾斜的俯视图;以及
图8示出了图7中Ⅷ-Ⅷ线的截面图。
具体实施方式
图1示出了活塞泵10。活塞泵10包括活塞12,该活塞能够在其轴向上往返运动。这样的运动通过未示出的偏心轮传动机构来实现。活塞12具有轴向孔14和多个径向孔16。在活塞12上设有具有贯穿孔20的导引元件18,该导引元件在缸元件22中导引活塞12。缸元件22大致上呈管状地构造在泵壳11中。在导引元件18远离活塞12的端部上设有入口阀24。入口阀24包括罩壳26、复位弹簧28和作为闭合体的板件30。罩壳26固定在导引元件16上。板件30封闭和打开导引元件18中的贯穿孔20。入口阀24由此设置在缸元件22内、在压力腔32中,在该压力腔中还设有活塞复位弹簧34。
此外,活塞泵10包括出口阀36,该出口阀设置在缸元件22的远离活塞12的端面上。出口阀36包括阀体39,该阀体通过涡卷弹簧形式的阀弹簧62被压向构造在该端面中的阀座41。
在远离压力腔32的端面一侧,贴靠缸元件22地设置有构件38,该构件具有第一保持件40,该第一保持件以具有通孔的环形盘的形式用于至少一个限制出口元件42。该限制出口元件42构造成节流盘。
另外,在构件38上构造或集成有第二保持件44,用以支撑出口阀36的阀弹簧62。第二保持件44包括用于阀弹簧62的环形的支撑面或支承面。可选地,阀弹簧62还可以容纳在第二保持件44中。该保持件44能够容易与待使用的阀弹簧62的形状相匹配。针对这里构造成螺旋弹簧的阀弹簧62而言,该保持件44构造成盆状。
在轴向上位于构件38之后,在与缸元件22连接的呈帽状的封闭元件46中设有额外的或另外的腔48用于未进一步示出的液压蓄能器的组装。
构件38构造成注塑件、金属车削件或冷锻件。
在图2中示出了图1的活塞泵10的另一变型。
在该变型中,第二保持件44构造成相对平面式的、大致呈盘形的容纳部,用于容纳构造成板簧或涡卷弹簧的阀弹簧62。
在图3至图5中,构件38具有呈盆状的容纳部形式的保持件40以及构造成在外边缘弯曲的环形盘的保持件44。
在保持件40的盆底设有中心孔54,用以将来自阀体39的流体传递到构件38的背面。在保持件44的环形盘上以在一圆圈上均匀间隔地分布的方式设置开孔52,来自构件38的背面的流体可以通过这些开孔向外再流到其前面上。因此,流体必然使位于开孔之前的、构造成节流盘的限制出口元件摆动,从而能够在前侧通过开孔52排出。在此设有六个这样的开孔52。
在保持件44的环形盘的弯曲的边缘上,同样以均匀间隔地分布的方式形成为边缘的凹陷部或凹孔形式的流出孔56。通过流出孔56,流体可以在从限制出口元件42后面到大致径向的出口孔37的流动方向上被引出,该出口孔构造在泵壳11中。
在图6中,另外示出了在构件38上被保持件44包围的限制出口元件42,该元件构造成能够偏转的节流盘。
图7和图8示出了构件38的一种变型,其中,开孔52构造成径向定向的狭缝。在此,狭缝作为凹陷部延伸通过用于保持件40的盆状的伸长部分以及通过用于保持件44的环形盘。
这种类型活塞泵10的功能如下:
在活塞泵10的吸入阶段,出口阀36闭合,入口阀24打开。由此,流体通过流体输入管道17在经由过滤元件19、径向孔16、轴向孔14和导引元件18的纵向孔20的方向上导引至入口阀24。通过打开的入口阀24将流体吸入到压力腔32中。在活塞12的下方止点处,活塞12的运动方向改变,由此入口阀24闭合。这时,活塞12沿出口阀36的方向运动。因此,在压力腔32中实现压力上升,直到其中的压力大于出口阀36的阀弹簧62的复位力。
在出口阀36的远离压力腔32的一侧,作为节流盘的限制出口元件42设置在构件38的保持件40上。在此,构件38在内部于保持件40的弯曲的边缘上具有凸肩,节流盘以其外边缘区域贴靠在凸肩上并由此在轴向上预紧。这样的预紧实现了用于在开孔52前的节流盘的限定的开孔压力。
对此,构件38通过限制出口元件42在泵壳11中保持在在缸元件22与封闭元件46之间。
在打开出口阀36时,流体经由本发明的构件38流过该构件的中心孔54,然后在限制出口元件42上流过并通过开孔52回流,并且再然后流入到作为压力管道起作用的出口孔37中。当在限制出口元件42上导引经过时,该元件从大致径向定向的位置或延伸偏移到轴向上并由此对于流体防止产生节流和/或缓冲作用。
所有在说明书、所附的权利要求以及附图中所示的特征既能够单独地也能够以相互任意组合的方式作为本发明的实质特征。

Claims (10)

1.一种活塞泵(10),所述活塞泵具有缸元件(22),在所述缸元件内部形成具有出口的压力腔(32),构件(38)贴靠在所述缸元件(22)的远离该压力腔(32)的端面一侧上,其特征在于,所述构件(38)具有多个开孔(52),在所述缸元件(22)外部、在液压方面置于活塞泵的出口阀(36)之后、在具有第一保持件(40)的构件(38)的开孔(52)前保持有作为节流盘的限制出口元件(42),使得在导引流体通过所述开孔(52)时,所述限制出口元件(42)从其径向定向的延伸偏移到轴向上。
2.如权利要求1所述的活塞泵,其特征在于,所述构件(38)贴靠在所述缸元件(22)上定位。
3.如权利要求1或2所述的活塞泵,其特征在于,所述构件(38)大致为板状。
4.如权利要求1或2所述的活塞泵,其特征在于,所述构件(38)具有用于出口阀(36)的阀弹簧(62)的第二保持件(44)。
5.如权利要求4所述的活塞泵,其特征在于,所述阀弹簧(62)为板簧或涡卷弹簧。
6.如权利要求1或2所述的活塞泵,其特征在于,所述构件(38)的第一保持件(40)具有用于将所述限制出口元件(42)预紧的凸肩。
7.如权利要求1或2所述的活塞泵,其特征在于,所述开孔(52)设置成分布在所述第一保持件(40)中。
8.如权利要求1或2所述的活塞泵,其特征在于,所述构件(38)通过封闭元件(46)来保持,在该封闭元件中构造有用于缓冲器的腔(48)。
9.如权利要求1或2所述的活塞泵,其特征在于,所述构件(38)为注塑件、金属车削件或冷锻件。
10.如权利要求1所述的活塞泵,其特征在于,所述活塞泵(10)是用于能够电控的车辆制动装置的液压设备的活塞泵。
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