CN107690513A - 可调节体积流量的座阀 - Google Patents

可调节体积流量的座阀 Download PDF

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CN107690513A
CN107690513A CN201680030772.7A CN201680030772A CN107690513A CN 107690513 A CN107690513 A CN 107690513A CN 201680030772 A CN201680030772 A CN 201680030772A CN 107690513 A CN107690513 A CN 107690513A
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tappet
capacity control
control drive
valve seat
valve
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沃尔弗拉姆·麦沃尔德
斯特凡·巴思
弗洛里恩·舒尔兹
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Kendelon (philippines) Co Ltd
Kendrion Villingen GmbH
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    • 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
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/02Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0644One-way valve
    • F16K31/0655Lift valves
    • 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
    • F16K27/00Construction of housing; Use of materials therefor
    • F16K27/02Construction of housing; Use of materials therefor of lift valves
    • F16K27/0245Construction of housing; Use of materials therefor of lift valves with ball-shaped valve members
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2066Selective catalytic reduction [SCR]
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/20Varying fuel delivery in quantity or timing
    • F02M59/36Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages
    • F02M59/366Valves being actuated electrically
    • F02M59/367Pump inlet valves of the check valve type being open when actuated
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/44Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • F02M59/445Selection of particular materials
    • 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
    • F16K1/00Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/12Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with streamlined valve member around which the fluid flows when the valve is opened
    • F16K1/123Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with streamlined valve member around which the fluid flows when the valve is opened with stationary valve member and moving sleeve
    • 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
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/02Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0644One-way valve
    • F16K31/0655Lift valves
    • F16K31/0665Lift valves with valve member being at least partially ball-shaped
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00Adding substances to exhaust gases
    • F01N2610/02Adding substances to exhaust gases the substance being ammonia or urea
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00Adding substances to exhaust gases
    • F01N2610/14Arrangements for the supply of substances, e.g. conduits
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00Adding substances to exhaust gases
    • F01N2610/14Arrangements for the supply of substances, e.g. conduits
    • F01N2610/1453Sprayers or atomisers; Arrangement thereof in the exhaust apparatus
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012Valves
    • F02M63/0031Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/0033Lift valves, i.e. having a valve member that moves perpendicularly to the plane of the valve seat
    • F02M63/0036Lift valves, i.e. having a valve member that moves perpendicularly to the plane of the valve seat with spherical or partly spherical shaped valve member ends
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

本发明涉及一种用于对机动车辆中的流体进行控制和/或计量的容量控制阀(1)。该容量控制阀(1)包括:具有驱动端(24)和自由端(22)的挺杆(18),所述挺杆(18)被容置于轴套(32)中并且沿其驱动轴线而安装以便可沿其纵向轴线来回地移动;和座阀(20),该座阀连接到流体通道(26)并且相对于挺杆而布置使得挺杆的自由端可以接合在阀座中并且当自由端接合在所述阀座中时将流体通道关闭;并且还包括沿挺杆的纵向轴线而布置的压力弹簧(30)。根据本发明,将焊接板(34)紧固和/或焊接和/或形成于具有布置在其上的压力弹簧的挺杆上,该挺杆被支撑在焊接板和轴套上。

Description

可调节体积流量的座阀
技术领域
本发明涉及一种根据权利要求1的前序部分的用于对机动车辆中的流体进行控制和/或分配的容量控制阀、包括控制燃料供给的容量控制阀的机动车辆、以及包括分配还原剂的容量控制阀的柴油机动车辆。
背景技术
机动车辆中的容量控制阀是用于对泵压进行简单控制,例如在如现代的量产机动车辆中所使用的共轨系统中,例如用于控制高压泵中的体积流量。在这种系统中,燃料被高度加压地提供于高压储罐中,然后经由共用管路被喷射入各个气缸中。这里为各气缸提供一个喷射器,该喷射器在打开状态中喷射燃料。这种容量控制阀可具体化为座阀。座阀例如是从DE 19810241 A1、DE 10308482 A1、DE 4430509 A1、或DE 102004057873 A1中获知。在DE 102004057873 A1中所揭示的座阀尤其适合于一个实例,当不提供功率时该座阀具体化为独立于任何压力的闭合形式,并且优选地用于高压用途。
现有技术的座阀(其在默认状态中是闭合的)除了快速响应的优点外还显示有大的通道截面,这确保高流量,然而它们的缺点在于由于施加到阀座上的压力因而这里需要强力弹簧以便将该阀保持在闭合状态。这导致非常高的产生任何流动所需的最小操作压力。为了频繁地控制流量,首先必须施加强的力,然后需要对该力进行精密调整。这使精确分配的可能性降低。现有技术的这些座阀的另一个缺点是它们的设计相对较为复杂。例如,在许多实例中,反向锚杆经由弹簧元件挤压到锚杆上,并且挺杆的前端挤压到阀座上从而阻止流体的流动。
发明内容
因此,本发明的目的是提供一种在默认状态中是开启的容量控制阀,该容量控制阀允许流体的精确分配、经过该阀的流体的可精确调整流动,并且可以以简单、紧凑的方式进行设计并且没有磨损和破裂。
这个目的是通过以下而实现:根据权利要求1的用于控制和/或分配机动车辆中的流体的容量控制阀、根据权利要求11的包括控制机动车辆的燃料供给的这种容量控制阀的机动车辆、以及根据权利要求12的这种容量控制阀用于分配柴油机动车辆的还原剂的使用。
在从属权利要求中公开了本发明的优选实施例。
用于控制和/或分配机动车辆中的流体的容量控制阀(也被称为体积流量调整座阀)包括:具有驱动端和自由端的挺杆,该挺杆沿其纵向轴线被容置并支撑从而可在轴套中来回地移动;连接到流体通道的阀座,该阀座是相对于挺杆而布置使得挺杆的自由端可与阀座接合并且当自由端与阀座接合时关闭流体通道;以及沿挺杆的纵向轴线而布置的压力弹簧。根据本发明,将焊接板紧固和/或焊接和/或成型于挺杆上,并且将压力弹簧布置在焊接板与轴套之间,其中压力弹簧被支撑在焊接板和轴套上。
这种布置简化了容量控制阀的设计,因为这里联接到弹簧的反向锚杆可弃用。此外,该系统显示如下的优点:尤其当把润滑的流体(例如柴油燃料)引导经过阀管路时,同时地产生对阀系统的机械结构的润滑,这导致无磨损和破裂的阀设计。
这里焊接板被紧固和/或焊接到和/或包括在挺杆上,使得当把最小压力(其值大于在零以上的某个值)施加到挺杆上时,被支撑在焊接板与轴套之间的压力弹簧可使挺杆首先向阀座的方向上移动。这里最小压力具有使得压力弹簧在线性范围内操作的强度,即一旦压力超过最小压力那么压力变化与挺杆的位移成比例。这样可减弱流量的振荡变化(该变化是例如当流体的流量或温度变化时发生)或者通过由锚杆传递到挺杆上的脉冲而形成挺杆的瞬态运动,因为挺杆可以不允许这些运动。
压力弹簧优选地具体化为被布置在挺杆周围的螺旋弹簧。当把轴套布置在挺杆的自由端和焊接板间时,由此形成容量控制阀,该容量控制阀在默认状态中是开启的并且可利用施加到挺杆驱动端上的充分强的力而在朝向阀衬套的方向上移动。
然而,如果应当提供在默认状态中为闭合的容量控制阀,则将支撑压力弹簧的轴套有利地紧固和/或布置在挺杆的驱动端与焊接板之间。在这种情况下可提供容量控制阀,该容量控制阀在容量控制阀不被致动时以由压力弹簧所决定且大于零的最小压力而与阀座发生触碰。在这种情况下,与挺杆的驱动端接合的拉力大体上是在挺杆的纵向轴线方向上并且大于弹簧将挺杆推动到阀座上的最小压力,可使挺杆在远离阀座的方向上移动,并且基于远离阀座的移动距离可控制经过阀的流量。
挺杆的自由端优选地具体化为球形或半球形,或者仅在密封座附近具体化为部分地球形。该球形或半球形实施例可以具体地是挺杆的增厚部。挺杆的自由端优选地具体化为与挺杆为一体。球形或半球形自由端的有利之处在于在挺杆端部不存在边缘或拐角,这些边缘或拐角可能导致通过流体的湍流或涡流,并由此会引起在被引导流体中的共振效应。球形挺杆端部的另一个优点是这里当挺杆端部是在阀座附近时可执行流量的精细调整和精细控制的事实。为了这个目的,阀座通常呈凹形(如同容器),常常显现V形状、漏斗形状或碗形状,并由此与挺杆端相匹配。
在本发明的一个变型中,用于闭合阀座的挺杆或者至少挺杆端部或阀元件是由比阀座自身更硬的材料所构成。例如,阀元件或挺杆的前端可由不锈钢制成,而阀座自身包含所谓的易切削钢。在该座阀的组装期间,阀元件被推动而抵接较软的阀座,因此在这里形成用于阀元件的优化的压印。在本上下文中,还有利的是轴套留出用于挺杆的一些游隙,例如+/-15°的微小倾斜运动。已证明这里该阀元件可最佳地挤压阀座。
容量控制阀优选地包括可被磁化的锚杆、和绕锚杆布置的电磁线圈,其中锚杆是相对于挺杆而布置,使得当给线圈通电时锚杆挤压在挺杆的驱动端上并且使挺杆沿其纵向轴线移动。由此可实现电磁控制阀和/或电磁阀。
这里挺杆可具体化为例如与锚杆为整体。然而,锚杆和挺杆也可具体化为若干个件。如果锚杆与挺杆具体化为单一件,那么这里可在挺杆的操作端施加轻微的使挺杆在远离阀座的方向上移动的张力。如果锚杆和挺杆具体化为多个部件,那么用于容量控制阀的模块化设计是可行的,其中该阀可容易地被组装到匹配的磁单元。当然,也可以以机械或液压的方式操作容量阀。如果容量控制阀是电磁阀,那么优选地在锚杆导向管中引导锚杆,其中锚杆导向管的纵向轴线优选地大体上平行于或等同于挺杆的纵向轴线。也可利用紧固装置将挺杆紧固到锚杆。
挺杆的自由端优选地包含比制造阀座的材料更硬的材料。该自由端可具有比制造阀座的材料更硬的涂层。阀座优选地是由例如11SMn30型的易切削钢所制成。挺杆的自由端可由例如100CR6型的退火钢所制成。
如果流体不是从前面流入,例如因此不是从容量控制阀的自由面区域流入,而是从侧部流入,那么这里软质材料组合也是可行的。例如,在这种情况下,挺杆或至少挺杆的前端可由1.4301型材料的铬-镍钢所制成,同时阀座可包含易切削钢。
挺杆有利地被在阀座与其驱动端之间的阀管所包围,该阀管是用于使流体经过其中通过并且具有至少一个另外的流体孔,该流体孔形成为阀管的侧向孔。这样,例如流体可从容量控制阀的前侧流入,然后可经过阀管的侧向孔而流出,反之亦然。
为了确保挺杆的安全支撑,这里将另一个轴套布置在焊接板与挺杆的驱动端之间,其中挺杆是以可沿其纵向轴线来回移动的方式被支撑。
在机动车辆中的上述类型的容量控制阀频繁地控制机动车辆的燃料供给,并且机动车辆代表例如使用柴油燃料运行的车辆,其中容量控制阀例如对向布置在机动车辆中的高压泵的燃料供给加以控制。
上述类型的容量控制阀在默认状态中或者在没有电流流过的状态中是开启的,然而也可用于分配还原剂,例如具体地以便分配用于使用柴油燃料运行的机动车辆的排气后处理系统的尿素水溶液。
附图说明
下面基于两个优选示例性实施例并参照附图来详细地描述本发明。在附图中:
图1是在默认状态中为开启的、根据本发明的容量控制阀的第一示例性实施例;
图2是根据本发明的容量控制阀的第二示例性实施例。
具体实施方式
图1示出了被设置在壳体2中的容量控制阀1。此外,线圈4和以可移动方式被设置在线圈4中的锚杆6是位于壳体2中,该锚杆可在锚杆导向管中来回地移动并且连同线圈4形成磁操作单元4,6,该磁操作单元4,6被紧固于壳体2中在O形圈10与垫圈12之间。垫圈12被布置在线圈4与布置在壳体2上的环形板14之间,并且垫圈12连同O形圈10将磁操作单元4,6朝向外部密封。
阀管16被引导经过环形板14,该环形板14环绕挺杆18和阀座20。挺杆18显示具有自由端22和驱动端24。挺杆的自由端22呈半球形或圆形,并且可被容置于阀座20中以便封闭流体孔25。流体孔25被布置在阀座20中,在此情况下如同漏斗,并且构成流体通道26的端部,经过该端部可输送流体(例如燃料混合物)。面向流体孔25的阀管16的前部包括另一个流体孔28,该流体孔28被侧向地布置在阀管16并且连接到另一个流体通道29。当挺杆18的自由端22被容置于阀座20中时,在流体孔25与另外的流体孔28之间的流体流动被阻断。当挺杆18的自由端22被布置在与阀座20相距一定距离时,这样流体可例如从阀开口20经由另外的阀孔28流动到另外的流体通道29,或者流体可从流体通道29经由流体孔25流入流体通道26。
这里每时间单位的流量取决于挺杆18的自由端22(在此情况下呈圆形)与阀座20的距离。压力弹簧30沿挺杆18的纵向轴线绕挺杆18设置,该压力弹簧30在轴套32与焊接到挺杆18的焊接板34之间延伸,该压力弹簧30由焊接板34及轴套32两者支撑。挺杆18被引导经过被紧固在阀管16上的另一个轴套36,以便可利用电磁体4,6的锚杆6来操作其驱动端24。
如果未给电磁线圈4通电,那么容量阀1是开启的,因为被支撑在焊接到挺杆18的焊接板34和轴套32上的压力弹簧30将挺杆18保持在与阀座20相隔一定距离处。当以合适的电流方向给线圈4通电时,锚杆6最初在向着流体孔25的方向移动,直到锚杆6与挺杆18的驱动端24碰撞。当增大流动经过线圈4的电流时,锚杆6以逐步增大的压力压在挺杆18的驱动端上。如果此压力大于被固定在阀管16的轴套32支撑挺杆18的力,那么压力弹簧30被压缩并且使挺杆18在阀座20的方向上移动。由此减小在流体开口25与另外的流体孔28之间的流量。这样,可利用经过电磁线圈4的电流强度来控制流体经过流体通道26、29的流量。
图2示出了根据本发明的容量控制阀1的另一个示例性实施例,该实施例与第一示例性实施例不同之处仅在于挺杆18具体化为两个部分,其中第二部分代表挺杆18的自由端22,在本实施例中该自由端22具体化为球体。当使容量控制阀1闭合时,挺杆18的自由端22(具体化为球体)挤压在V形状或漏斗形状的阀座20上并且阻断在流体通道26与另外的流体通道29之间的流动。类似地,如在图1的示例性实施例中,在本示例性实施例中锚杆导向管8被容置于布置在壳体2中的烧结管38中。
附图标记的列表
1 容量控制阀
2 壳体
4 电磁线圈
6 可被磁化的锚杆
8 锚杆导向管
10 O形圈
12 垫圈
14 平板
16 阀管
18 挺杆
20 阀座
22 自由端
24 驱动端
25 流体孔
26 流体通道
28 另外的流体孔
29 另外的流体通道
30 压力弹簧
32 轴套
34 焊接板
36 另外的轴套
38 烧结管

Claims (12)

1.一种用于控制和/或分配机动车中的流体的容量控制阀(1),包括:
具有驱动端(24)和自由端(22)的挺杆(18),所述挺杆(18)以能沿其纵向轴线来回移动的方式被容置于轴套(32)中;
连接到流体通道(26)的阀座(20),所述阀座(20)相对于所述挺杆(18)而布置,使得所述挺杆(18)的所述自由端(22)能与所述阀座(20)接合,并且当所述自由端(22)与所述阀座(20)接合时将所述流体通道(26)关闭;
沿所述挺杆(18)的纵向轴线布置的压力弹簧(30),
其特征在于,焊接板(34)被布置在和/或焊接在和/或包含在所述挺杆(18)上,并且所述压力弹簧(30)被布置在所述焊接板(34)与所述轴套(32)之间,使得所述压力弹簧(30)被支撑在所述焊接板(34)与所述轴套(32)上。
2.根据权利要求1所述的容量控制阀(1),其特征在于,所述压力弹簧(30)是绕所述挺杆(18)设置的螺旋弹簧。
3.根据权利要求1或2所述的容量控制阀(1),其特征在于,所述轴套(32)被布置在所述挺杆(18)的所述自由端(22)与所述焊接板(34)之间。
4.根据前述权利要求中任一项所述的容量控制阀(1),其特征在于,所述挺杆(18)的所述自由端(22)呈球形或半球形。
5.根据前述权利要求中任一项所述的容量控制阀(1),包括可以被磁化的锚杆(6)、和围绕所述锚杆(6)布置的电磁线圈(4),其特征在于,所述锚杆(6)相对于所述挺杆(18)而布置,以便所述锚杆(6)施加压力于所述挺杆(18)的所述驱动端(24)上并且当给所述线圈(4)通电时能使所述挺杆(18)沿其纵向轴线移动。
6.根据权利要求5所述的容量控制阀(1),其特征在于,所述锚杆(6)在锚杆导向管(8)中被引导,并且其纵向轴线优选地平行于所述挺杆(18)的纵向轴线。
7.根据权利要求5或6所述的容量控制阀(1),其特征在于,所述挺杆(18)被紧固在所述锚杆(6)上或者具体化为与所述锚杆(6)为一体。
8.根据前述权利要求中任一项所述的容量控制阀(1),其特征在于,所述挺杆(18)的所述自由端(22)包含比制造所述阀座(20)的材料更硬的材料或者具有比构成所述阀座(20)的材料更硬的涂层,并且所述阀座(20)优选地由易切削钢制成,具体地为11SMn30型。
9.根据前述权利要求中任一项所述的容量控制阀(1),其特征在于,所述挺杆(18)被在所述阀座(20)与所述驱动端(24)之间的阀管(16)所包围,所述阀管(16)具体化为允许流体经过其中而通过并且包括至少一个另外的流体孔(28),所述流体孔(28)具体化为所述阀管(16)的侧向孔。
10.根据前述权利要求中任一项所述的容量控制阀(1),其特征在于,在所述焊接板(34)与所述挺杆(18)的所述驱动端(24)之间布置有另一个轴套(36),所述挺杆(18)以能沿纵向轴线来回移动的方式被容置于其中。
11.一种机动车,包括根据前述权利要求中任一项所述的容量控制阀(1),所述容量控制阀(1)控制向所述机动车的燃料供给,其中所述机动车优选地是使用柴油燃料运行的机动车,并且所述容量控制阀(1)优选地控制向布置在所述机动车中的高压泵的燃料供给。
12.根据权利要求1至10中任一项所述的容量控制阀(1)的使用,用于分配还原剂,具体地用于分配在使用柴油燃料运行的所述机动车的排气后处理系统中的尿素水溶液。
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