CN103080552B - 带有封闭件的活塞泵的阀 - Google Patents

带有封闭件的活塞泵的阀 Download PDF

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CN103080552B
CN103080552B CN201180040047.5A CN201180040047A CN103080552B CN 103080552 B CN103080552 B CN 103080552B CN 201180040047 A CN201180040047 A CN 201180040047A CN 103080552 B CN103080552 B CN 103080552B
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valve
piston
closure elements
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dashpot piston
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CN103080552A (zh
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M·齐默曼
O·亨尼希
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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
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/06Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F04C15/064Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston machines or pumps
    • 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
    • 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
    • F04B53/10Valves; Arrangement of valves
    • F04B53/1002Ball valves
    • F04B53/1017Semi-spherical ball valves
    • 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
    • F04B53/10Valves; Arrangement of valves
    • F04B53/108Valves characterised by the material
    • 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
    • F16K15/00Check valves
    • F16K15/02Check valves with guided rigid valve members
    • 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
    • F16K15/00Check valves
    • F16K15/02Check valves with guided rigid valve members
    • F16K15/025Check valves with guided rigid valve members the valve being loaded by a spring
    • F16K15/026Check valves with guided rigid valve members the valve being loaded by a spring the valve member being a movable body around which the medium flows when the valve is open
    • 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
    • F16K17/00Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • 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
    • F04B53/10Valves; Arrangement of valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/06Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • 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
    • F16K25/00Details relating to contact between valve members and seats

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Transportation (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Safety Valves (AREA)
  • Reciprocating Pumps (AREA)

Abstract

本发明涉及一种活塞泵的阀(20),特别是用于车辆液压制动设备的活塞泵的阀(20),该阀带有封闭件(28),该封闭件以在轴向上被引导的方式可相对于密封座(18)运动,根据本发明,封闭件(28)为两件式的且被构造为具有减振活塞(30)和置入在该减振活塞中的封闭元件(32)。

Description

带有封闭件的活塞泵的阀
技术领域
本发明涉及一种尤其用于车辆液压制动系统的活塞泵的阀,其带有以在轴向上引导的方式可相对于密封座运动的封闭件。
背景技术
现有技术DE19928913A1公开了一种活塞泵,其中,在泵壳体中构建有一个单独的泵元件或者由泵活塞构成的泵单元,该泵活塞可移位地支承在泵缸中。泵活塞在此将制动液吸入到泵缸中且通过阀将制动液从泵缸中输送出去。
发明内容
本发明的目的在于,提供一种活塞泵的阀,该阀可价格上有利地制造和安装,且仍显示出特别好的打开和关闭特性。
根据本发明,应实现一种尤其用于车辆液压制动系统的活塞泵的阀,其带有以在轴向上引导的方式可相对于密封座运动的封闭件。封闭件为两件式的且被构造为具有减振活塞和置入在减振活塞中的封闭元件。
利用两件式的封闭件实现了一种在装配技术上特别有利的结构,此外,该结构也特别好地适用于补偿制造误差且适用于实现在使用寿命中所要求的密封性。本发明给出了待装配的构件的一种有利的装配顺序,该装配顺序可利用可移动的工件载体以可良好自动化的方式实现。因此,根据本发明的阀可以简单的方式制造且仍可对所属的泵单元的主要功能起非常积极的作用。利用封闭件的两件式设计也可同时实现对阀的功能特别有利的前提条件,如接下来还要进一步阐述的那样。
封闭元件优选由贴靠在减振活塞的端侧上的头部和插入到减振活塞中的杆构成。头部优选设计成罩帽形且/或杆优选设计成圆柱形。
这类设计成蘑菇形的封闭元件可借助于其插入到减振活塞中的杆以可特别良好自动化的方式安装,特别是在可移动的工件载体上。
在封闭元件中,尤其在该封闭元件的头部中优选在面向密封座的端侧上构造有中央凹口。
中央凹口在封闭元件的端侧上形成凹陷区域,该区域面向流向阀的液体。该凹陷区域对流入的液体产生抑制作用且使阀的打开特性特别好。
封闭元件借助于卡锁装置优选保持在减振活塞上,该卡锁装置特别地被构造为在杆上的至少一个止动件的形式。
这类杆可通过简单的插入或置入和卡锁或止动安装在减振活塞上且固定在那里。至少一个止动件优选设计成凸肩、夹子或突出部。
此外有利的是,封闭元件以有径向间隙的方式保持在减振活塞上,该间隙由杆相对于围绕的减振活塞的径向间隔形成。
在该改进方案中,圆柱形杆的直径特别地构造成略微小于成型在减振活塞中的圆柱形开口的直径,该开口用于容纳和保持杆。以如上方式形成的径向间隙使,封闭元件可在减振活塞中略微径向运动且可由此特别地以其头部沿着减振活塞的端侧滑动。该径向运动使得封闭元件可以整个表面地贴靠到所属的阀座上而在此不会出现所不希望的封闭元件相对于阀座的错位。
在减振活塞面向封闭元件的端侧上优选构造有至少一个通道,穿过该通道实现了径向由外向内的在封闭元件下面的流动
穿过阀座的开口而进入的液体可通过通道进入减振活塞中,到达头部的后侧且也到达减振活塞的后侧。该液体可以用于对减振活塞的运动的针对性地调节的减振。
通道优选构成穿过减振活塞到达该减振活塞另一端侧的流动连通部的一个区段。
在流动方向上位于所提及的通道之后有利地借助于在减振活塞中的中央通孔构成余下的流体连通部,蘑菇形的封闭元件也借助于其杆以间隙置入其中。
在通道中有利地构造有狭窄部,借助于该狭窄部构成节流部。
节流部使得,可针对性地减缓或阻止液体流出进入减振活塞内部和到达该减振活塞的后侧。考虑到配属的封闭元件的较差振动特性,以该方式可针对性地加强减振活塞的减振作用。
通道优选借助于成型在减振活塞中的、径向指向的槽构成,该槽的开口横截面在轴向上的一个位置处变小。
通道带有被分配的节流部这一设计方案可通过简单的铣削工艺而成本上特别有利地制造。
此外,本发明还涉及一种带有这类根据本发明的阀的车辆制动设备的活塞泵。
附图说明
接下来借助于随附的示意图详细描述根据本发明的解决方案的实施例。其中:
图1示出了根据现有技术的活塞泵的局部纵剖图,
图2示出了根据本发明的带有从属的封闭件的活塞泵的第一实施例的根据图1的视图,
图3示出了根据图2的封闭件的立体图,
图4示出了根据本发明的带有配属的封闭件的活塞泵的第二实施例的根据图1的视图,以及
图5示出了根据图4的封闭件的立体图。
具体实施方式
在图1中示出了用于未进一步示出的车辆液压制动设备的、根据现有技术的活塞泵10,该活塞泵10用于使在车辆制动设备内部的制动液产生流体压力。活塞泵10为此具有杯形的缸体12,在该缸体12中克服螺旋弹簧14可移位地支承有未示出的活塞。活塞输送制动液穿过构造在缸体12的底部区域中的环形流出口16。流出口16由阀座或者说密封座18围绕,该阀座或者说密封座18为流出阀20的一部分。流出阀20还包括单件式的、球冠状的封闭件22,该封闭件22借助于螺旋弹簧24抵靠在密封座12上。螺旋弹簧24支撑在泵盖26上,该泵盖26在端侧围绕缸体12。
图2和3示出了根据本发明的活塞泵10的第一实施例,其中,流出阀20由一个两件式的封闭件28构成。封闭件28包括减振活塞30以及置入在减振活塞30中的蘑菇形的封闭元件32。
以该方式实现了这样一种结构,即,借助于该结构可补偿尤其在密封座18和封闭件28之间在径向上的制造误差。封闭元件32在此以其杆侧的端面贴靠在减振活塞30的端面上且可略微在径向上运动。封闭元件32包括以如上方式贴靠的头部34以及插入到减振活塞30中且在那里伸入的杆36。
封闭元件32以其杆36插入到构造在减振活塞30中的中央通孔38中,且在其头部34处在面向密封座18的端侧上具有中央凹口40。该中央凹口40对流入的液体产生抑制作用(Stauwirkung)且使流出阀20的打开特性得到改进。
封闭元件32借助于卡锁装置保持在减振活塞30上,在图2和3示出的实施例中,该卡锁装置由构造在杆36的自由端部上的环形的凸肩42构成。凸肩42的直径仅略微大于通孔38的直径。杆36的余下部分的直径略微小于通孔38。封闭元件32以该方式以有径向间隙的方式保持在减振活塞30上,这一点尤其通过杆36相对于围绕其的减振活塞30的径向间隔得到确保。
在减振活塞30面向封闭元件32的端侧44上成型有径向取向的通道46,在头部34之下的液体可穿过该通道46流动进入减振活塞30的内部且到达该减振活塞30的后侧。该液体有利于实现在不同的工作压力下对减振活塞30的运动的有针对性地进行调节的减振。在此,减振活塞30在其后侧上同样借助于螺旋弹簧24以弹性的方式预紧,该螺旋弹簧24支撑在泵盖26上。
在通道46中构造有狭窄部(Verengung)48,借助于该狭窄部48形成节流部(Drossel)。该节流部针对性地减缓液体流出进入减振活塞30的内部。
为了将封闭元件32通过其杆36接合到通孔38中,在杆36的自由端部上和在通孔38的端侧的边缘上分别构造有渐变部(Phase)50或52。
在图4和5中示出了根据本发明的两件式封闭件28的实施例,其中,借助于突起部54形成在减振活塞30和蘑菇形的封闭元件32之间的卡锁装置。突起部54位于配属的杆36的圆周上且以均匀的间隔分布在那里,在该处,在根据图2和3的实施例中构造有凸肩42。

Claims (11)

1.一种活塞泵的阀(20),该阀带有封闭件(28)和密封座(18),所述封闭件(28)以在轴向上被引导的方式能相对于所述密封座(18)运动,其中,所述封闭件(28)为两件式的且被构造为具有减振活塞(30)和置入在所述减振活塞(30)中的封闭元件(32),其特征在于,所述封闭元件(32)以有径向间隙的方式保持在所述减振活塞(30)上,在减振活塞(30)面向封闭元件(32)的端侧(44)上构造有至少一个通道(46),穿过所述通道实现了沿径向由外向内在封闭元件(32)下面的流动,并且通道(46)构成穿过减振活塞(30)达到所述减振活塞(30)的另一端侧的流动连通部的一个区段。
2.根据权利要求1所述的阀,其特征在于,封闭元件(32)由贴靠在减振活塞(30)的端侧上的头部(34)和插入所述减振活塞(30)中的杆(36)构成。
3.根据权利要求2所述的阀,其特征在于,所述径向间隙由杆(36)相对于围绕的减振活塞(30)的径向间隔实现。
4.根据权利要求1至3中任一项所述的阀,其特征在于,在封闭元件(32)中,在面向密封座(18)的端侧上构造有中央凹口(40)。
5.根据权利要求4所述的阀,其特征在于,在所述封闭元件(32)的头部(34)中,在面向密封座(18)的端侧上构造有中央凹口(40)。
6.根据权利要求1至3中任一项所述的阀,其特征在于,封闭元件(32)借助于卡锁装置(42;54)保持在减振活塞(30)上。
7.根据权利要求6所述的阀,其特征在于,所述卡锁装置(42;54)构造为在所述封闭元件的杆(36)上的至少一个止动件的形式。
8.根据权利要求1至3中任一项所述的阀,其特征在于,在通道(46)中构造有狭窄部(48),借助于所述狭窄部(48)构成节流部。
9.根据权利要求8所述的阀,其特征在于,通道(46)借助于成型在减振活塞(30)中的径向指向的槽构成,所述槽的开口横截面在轴向上的一个位置处减小。
10.根据权利要求1至3中任一项所述的阀,其特征在于,所述阀(20)是用于车辆液压制动设备的活塞泵的阀(20)。
11.一种带有根据权利要求1至10中任一项所述的阀(20)的车辆制动设备的活塞泵。
CN201180040047.5A 2010-08-19 2011-06-21 带有封闭件的活塞泵的阀 Active CN103080552B (zh)

Applications Claiming Priority (3)

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DE102010039501.3 2010-08-19
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US20130240773A1 (en) 2013-09-19
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CN103080552A (zh) 2013-05-01
KR20130137132A (ko) 2013-12-16
WO2012022522A1 (de) 2012-02-23
DE102010039501A1 (de) 2012-02-23
EP2606233A1 (de) 2013-06-26
US9982671B2 (en) 2018-05-29
JP2013538968A (ja) 2013-10-17
KR101876781B1 (ko) 2018-07-10
JP5677574B2 (ja) 2015-02-25

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