CN112984097A - 液体泵 - Google Patents

液体泵 Download PDF

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Publication number
CN112984097A
CN112984097A CN202011388127.7A CN202011388127A CN112984097A CN 112984097 A CN112984097 A CN 112984097A CN 202011388127 A CN202011388127 A CN 202011388127A CN 112984097 A CN112984097 A CN 112984097A
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valve
plate
liquid pump
pump
pump according
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W.赫布纳
R.斯托塞尔
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FTE Automotive GmbH
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FTE Automotive 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
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/0021—Generation or control of line pressure
    • F16H61/0025—Supply of control fluid; Pumps therefore
    • 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
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/102—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member the two members rotating simultaneously around their respective axes
    • 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
    • F01C21/10—Outer members for co-operation with rotary pistons; Casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/1087—Valve seats
    • 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
    • F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
    • F04C13/001—Pumps for particular liquids
    • F04C13/002—Pumps for particular liquids for homogeneous viscous liquids
    • 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
    • F04C14/04—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations specially adapted for reversible machines or pumps
    • 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
    • F04C14/10—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by changing the positions of the inlet or outlet openings with respect to the working chamber
    • 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
    • F04C14/24—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
    • 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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
    • F04C15/008—Prime movers
    • 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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F04C15/064—Arrangements 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
    • F04C15/066—Arrangements 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 of the non-return type
    • 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
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02—Lubrication; Lubricant separation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
    • F16H57/0435—Pressure control for supplying lubricant; Circuits or valves therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
    • F16H57/0436—Pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/0003—Arrangement or mounting of elements of the control apparatus, e.g. valve assemblies or snapfittings of valves; Arrangements of the control unit on or in the transmission gearbox
    • F16H61/0009—Hydraulic control units for transmission control, e.g. assembly of valve plates or valve units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N13/00—Lubricating-pumps
    • F16N13/20—Rotary pumps
    • 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
    • F04C2210/00—Fluid
    • F04C2210/14—Lubricant
    • 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
    • F04C2240/00—Components
    • F04C2240/30—Casings or housings
    • 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
    • F04C2240/00—Components
    • F04C2240/40—Electric motor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2210/00—Working fluid
    • F05B2210/10—Kind or type
    • F05B2210/11—Kind or type liquid, i.e. incompressible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/0021—Generation or control of line pressure
    • F16H2061/0037—Generation or control of line pressure characterised by controlled fluid supply to lubrication circuits of the gearing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0467—Elements of gearings to be lubricated, cooled or heated
    • F16H57/0473—Friction devices, e.g. clutches or brakes

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

Abstract

本发明涉及一种液体泵，特别是用于向机动车辆的传动系中的变速器或离合器提供供应的液体泵，具有驱动马达(2)，所述液体泵具有泵模块(3)，所述泵模块能够在两个相反的旋转方向上操作，并且所述泵模块具有至少一个入口(26)和多个出口(28、30、32)，其中每个分配有至少一个止回阀(36、38、39)，其特征在于，所述泵模块(3)分配有阀板(5)，其中对于每个止回阀(38、39)，设置阀座(34)和用于与阀座(34)相互作用的阀元件(36、38、39)的容器(40)。

Description

液体泵
技术领域
本发明涉及一种液体泵，特别是用于向机动车辆的传动系中的变速器或离合器提供供应的液体泵，具有驱动马达，所述液体泵具有泵模块，该泵模块能够在两个相反的旋转方向上操作，并且该泵模块具有入口和多个出口，其中每个分配有至少一个止回阀。
背景技术
所述类型的液体泵用于以期望的方式向变速器和/或离合器盘中的润滑点供应润滑剂，即油。
在两个相反的旋转方向上操作液体泵的可能性允许液体泵的不同出口以不同方式被提供供应。例如，在沿第一旋转方向的操作期间，可向通向离合器的出口提供仅小的润滑剂流(“最小量润滑”)，这例如导致打开离合器的低阻力损失，但在相反旋转方向的操作过程中，提供更大的润滑剂流。
发明内容
本发明的目的是提供一种液体泵，其特征在于高度紧凑的结构并且仍然可以以低成本制造。
为了实现所述目的，在引言中提到的类型的液体泵的情况下，泵模块分配有阀板，其中对于每个止回阀，设置阀座和用于与阀座相互作用的阀元件的容器。本发明基于将不同的止回阀组装在一个部件特别是阀板中的基本构思，这使得在沿相反的旋转方向操作期间能够在每个情况下输送期望的油流。这使得所有的止回阀都可以附接到液体泵从而直接集成。
优选地，每个阀座与所分配的容器一起形成基本沿轴向方向布置的通流通道。“轴向方向”在这里是指平行于泵模块的驱动轴的方向。其优选地也平行于油从泵模块的出流方向。轴向定向的通流通道的特别优点在于，阀板可以无底切(undercut-free)方式制造，例如通过铸造工艺或通过机械加工，而不必存在复杂的横向孔。
在阀板中可以设置有至少一个流动传输开口，其从一个通流通道延伸至另一通流通道并且其暴露在阀板的平坦侧之一处。这种流动传输开口可以用很少的费用生产并且提供附加功能。
如果流动传输开口是节流部的形式，则例如可以确保润滑剂流与液体泵的旋转方向无关。
可以规定，泵模块具有泵板，其中阀板布置在泵板上，并且泵板具有将两个通流通道彼此连接的至少一个流动传输通道。为此，也可以在不要求阀板具有复杂几何形状的情况下，为流动传输通道提供附加功能或油流。
根据优选实施例，在阀板的背离泵模块的一侧上布置封闭板并且封闭板设置有至少一个入口开口和至少两个出口开口。利用封闭板，可以实现特别紧凑的设计，其中阀板可以被夹在封闭板和泵模块之间。
从封闭板开始，至少两个冷却介质通道可以延伸穿过阀板和泵模块至驱动马达。借助于冷却介质通道，可以将一部分润滑剂流分支并引导通过驱动马达以冷却后者。
在此，可以在阀板中设置用于至少一个冷却介质通道的节流部，以便将通流设定为期望值。
根据本发明的一种配置规定，阀元件具有中心主体和多个外轴向延伸引导翼。利用引导翼，可以确保容器的壁与中心主体之间的足够流动横截面，同时引导翼能够限制阀元件在打开方向上的最大调节距离。
根据本发明的一实施例规定，阀元件没有复位弹簧。已经发现，可以省去复位弹簧，因为阀元件在阀元件上的压力下降的作用下可靠地关闭并且通过主要的压力差提供足够的密封。
附图说明
下面将基于在附图中示出的实施例描述本发明。在这些附图中：
-图1以透视图示出了根据本发明的液体泵；
-图2示出了图1中的液体泵的从下面看的视图；
-图3示出了图2中的液体泵的侧视图；
-图4示出了液体泵的分解透视图；
-图5示出了液体泵的液压流程图；
-图6示出了通过液体泵的纵向横截面；
-图7示出了通过液体泵的另一纵向横截面；
-图8以放大比例示出了图7中的细节VIII；
-图9以透视图示出了在液体泵中使用的阀板；
-图10示出了通过液体泵的另一纵向横截面；以及
-图11以放大比例示出了图1中的细节XI。
具体实施方式
附图示出了液体泵1，液体泵1具有作为主要组成部分的驱动马达2、泵模块3、泵板4、阀板5和封闭板6(具体参见图1至4)。
驱动马达2是电动马达，具有马达壳体10、定子12和转子14，该转子14通过转子轴16驱动泵模块3的泵转子18。泵转子18是齿环泵的一部分，其具有外环20，泵转子18啮合在外环20中。外环20在泵壳体22中滑动。这种泵类型也被称为“盖劳特泵(gerotor pump)”。
在泵板4中设置有通向泵空间的开口，泵空间被界定在泵转子18和外环20之间。在图4中仅可以看到两个切口24。
流动传输通道25设置在泵板4中且用于使泵的泄漏油返回到吸入区域，该泄漏油可以通过驱动轴的轴承装置逸出。同时，孔可用于减轻重量或避免质量积聚，这在某些生产过程中可能是妨碍的。
泵模块3可以在相反的旋转方向上操作，从而入口和出口根据旋转方向具有不同的功能；在一个旋转方向上构成泵的吸入侧的开口或狭槽在相反旋转方向上是压力侧。
在封闭板6中，为液体泵1提供了作为入口的入口开口26和作为出口的三个出口开口28、30、32，它们用作液体泵1的压力出口。
在阀板5中形成的总共六个止回阀用于“切换”泵模块3的不同旋转方向的各种流体流。
每个止回阀由阀座34形成，在每个情况下有一个阀元件36、38、39与阀座34相互作用。每个阀元件36、38、39布置在容器40中，容器40同样形成在阀板5中。
每个阀元件36、38、39具有主体42和多个轴向延伸引导翼44。引导翼被支撑在相应容器40的壁上并且在容器40的壁与主体42的外表面之间限定有通流通道。
只要其中一个止回阀还具有限压阀的功能，便为其分配复位弹簧(参见图6中的阀元件39的复位弹簧46)。
液体泵的功能将在下面基于图5进行说明。为了更清楚起见，相应的止回阀在下面用“其”阀元件的附图标记表示。
如果液体泵沿第一旋转方向(在这种情况下假定为逆时针方向)操作，则开口B构成泵模块3的吸入侧。液体泵3经由图5右侧的止回阀36和封闭板6的入口开口26吸入。这里，液体泵1可以装配在变速器壳体上，使得其直接从变速器吸入。可替代地，液体泵1还可以从单独的存储容器中吸入。
油通过出口开口A被输送，然后被引导通过止回阀38之一至出口开口32，其中向油冷却器48(示意性示出)提供供应。如果油冷却器中的通流阻力过高(例如在油温度非常低的情况下)，则由于弹簧的预加载而构成限压阀的止回阀39将打开。
然后，通过限压阀39的油流流向出口开口30，并通过节流部50和另一节流部52流到出口开口28。出口开口28可以通向一个或多个离合器，并尤其确保在此最小量润滑。
此外，向通向变速器中的润滑点的出口开口30提供供应。
如果液体泵沿相反方向(在这种情况下为顺时针)操作，则开口A构成泵模块3的吸入侧。液体泵3通过图5左侧的止回阀36和封闭板6的入口开口26吸入。油从泵模块3的吸入侧通过止回阀38和节流部52流到出口开口28。此外，部分油通过节流部50流到出口开口28。与此平行，另外的油流可以通过止回阀38和另一节流部54流到出口开口30。
止回阀的特别特征是，它们总体上(至少基本上)在轴向方向上延伸，也就是说，容器和由阀座形成的流动横截面在平行于泵的纵向轴线以及转子轴16的延伸方向的方向上限定油流。这在组装期间也具有优势，因为所有部件都可以沿轴向方向组装。
如图4所示，可以使用组装螺钉60，通过其可以将封闭板6、阀板5、泵板4和泵壳体22沿轴向方向拧入马达壳体10中。在该过程中，止回阀的阀元件36、38、39也适当地固定在阀板5中，特别是在相应的阀座与泵板(止回阀36)之间或者在阀板5中的相应阀座与封闭板6(止回阀38、39)之间。
由于止回阀的轴向布置，阀板5可以无底切的方式设计(例如参见图6、7和9)。阀板5可以通过铸造工艺生产，而无需滑动，或者可以通过机加工材料块来生产。无需隐藏的横向孔。
如图8所示，节流部50可以集成到止回阀(在这种情况下为止回阀38)中，特别是在阀座中设置有凹槽。这确保了特定的最小通量，而不必打开止回阀38。
如图9所示，出口开口28、30之间的连接可以由在阀板中的两个容器之间形成的流动传输开口62形成。可以通过横截面以期望的方式设定流动传输体积。
从封闭板6开始，提供了两个冷却介质通道64，其延伸穿过阀板5和泵模块3至驱动马达2。冷却介质通道64用于分支一部分油流并用于引导所述部分通过驱动马达2从而冷却后者。
通过冷却介质通道的流动可以通过阀板中的节流点66以所需的方式设定(参见图11)。

Claims (10)

1.一种液体泵，特别是用于向机动车辆的传动系中的变速器或离合器提供供应的液体泵，具有驱动马达(2)，所述液体泵具有泵模块(3)，所述泵模块能够在两个相反的旋转方向上操作，并且所述泵模块具有入口(26)和多个出口(28、30、32)，其中每个分配有至少一个止回阀(36、38、39)，其特征在于，所述泵模块(3)分配有阀板(5)，其中对于每个止回阀(36、38、39)，设置阀座(34)和用于与所述阀座(34)相互作用的阀元件(38、39)的容器(40)。
2.根据权利要求1所述的液体泵，其特征在于，每个阀座(34)与所分配的所述容器(40)一起形成基本沿轴向方向布置的通流通道。
3.根据权利要求2所述的液体泵，其特征在于，在所述阀板(5)中设置有至少一个流动传输开口(62)，所述至少一个流动传输开口从一个通流通道(40)延伸至另一通流通道(40)并且所述至少一个流动传输开口暴露在所述阀板(5)的平坦侧之一处。
4.根据权利要求3所述的液体泵，其特征在于，所述流动传输开口(62)形成节流部。
5.根据前述权利要求中任一项所述的液体泵，其特征在于，所述泵模块(3)具有泵板(4)，其中，所述阀板(5)布置在所述泵板(4)上，并且所述泵板(4)具有将两个通流通道(40)彼此连接的至少一个流动传输通道(25)。
6.根据前述权利要求中任一项所述的液体泵，其特征在于，在所述阀板(5)的背离所述泵模块(3)的一侧上布置封闭板(6)并且所述封闭板(6)设置有至少一个入口开口(26)和至少两个出口开口(28、30、32)。
7.根据权利要求6所述的液体泵，其特征在于，从所述封闭板(6)开始，至少两个冷却介质通道(64)延伸穿过所述阀板(5)和所述泵模块(3)至所述驱动马达(2)。
8.根据权利要求7所述的液体泵，其特征在于，在所述阀板(5)中设置用于至少一个所述冷却介质通道(64)的节流部(66)。
9.根据前述权利要求中任一项所述的液体泵，其特征在于，所述阀元件(36、38、39)具有中心主体(42)和多个外轴向延伸引导翼(44)。
10.根据前述权利要求中任一项所述的液体泵，其特征在于，所述阀元件(38)没有复位弹簧。
CN202011388127.7A 2019-12-02 2020-12-01 液体泵 Pending CN112984097A (zh)

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