CN108679288A - 电磁阀组件 - Google Patents
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- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0644—One-way valve
- F16K31/0655—Lift valves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
- B01D35/04—Plug, tap, or cock filters filtering elements mounted in or on a faucet
- B01D35/046—Plug, tap, or cock filters filtering elements mounted in or on a faucet the filtering element being mounted in the faucet plug
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE 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
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements 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
- B60T8/34—Arrangements 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
- B60T8/36—Arrangements 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 including a pilot valve responding to an electromagnetic force
- B60T8/3615—Electromagnetic valves specially adapted for anti-lock brake and traction control systems
- B60T8/363—Electromagnetic valves specially adapted for anti-lock brake and traction control systems in hydraulic systems
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- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift 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
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift 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
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
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- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
- F16K15/182—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism
- F16K15/1823—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism for ball check valves
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- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/029—Electromagnetically actuated valves
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- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0644—One-way valve
- F16K31/0655—Lift valves
- F16K31/0658—Armature and valve member being one single element
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE 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
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements 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
- B60T8/34—Arrangements 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
- B60T8/36—Arrangements 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 including a pilot valve responding to an electromagnetic force
- B60T8/3615—Electromagnetic valves specially adapted for anti-lock brake and traction control systems
- B60T8/3675—Electromagnetic valves specially adapted for anti-lock brake and traction control systems integrated in modulator units
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Abstract
电磁阀组件。一种电磁阀组件包括限定通路的磁芯。阀座由通路容纳并限定隔室。流出腔室被限定在磁芯与阀座之间。阀座限定将阀座的隔室与流出腔室流体地连接的孔口。推杆可轴向移动以打开和关闭孔口。阀座进一步限定将阀座的隔室与流出腔室流体地连接的止回阀孔口。球覆盖止回阀孔口。过滤器座被固定到所述阀座。球引导件被设置成与止回阀孔口对准并且限定引导通道,该引导通道容纳球,用于朝向和远离止回阀孔口引导球。引导通道由阀座和过滤器座限定。
Description
技术领域
本公开涉及一种用于为车辆系统提供液压控制的电磁阀组件。
背景技术
电磁阀组件在本领域中已知用于通过控制作用在车轮制动器的轮缸上的液压来为车辆系统(诸如防抱死制动系统)提供液压控制。
图1例示出了传统的电磁阀组件100。所述阀组件100包括调节器块(block)102,该调节器块102限定流体地连接到主缸的孔(bore)104。磁芯106由孔104容纳。阀座108由磁芯106的通路(channel)110容纳并且限定隔室112。流出腔室114被限定在磁芯106与阀座108之间。出口115流体地连接到制动组件。阀座108限定将阀座108的隔室112与流出腔室114流体地连接的孔口(orifice)116。推杆(tappet)118轴向可移动以打开和关闭孔口116以将阀座108的隔室112与流出腔室114流体地连接和断开。电枢120和相应的螺线管(未示出)提供推杆118的移动。模制的过滤器支撑件122连接到阀座108并且限定止回阀通道124。球126设置在止回阀通道124中,其允许流体从流出腔室114流出到主缸,同时防止流体从主缸流入流出腔室114。
仍然存在改进这种电磁止回阀组件的需要。
发明内容
提供了一种电磁阀组件。所述电磁阀组件包括围绕轴线并沿轴线延伸并且限定通路的磁芯。阀座由磁芯的通路容纳并限定隔室。流出腔室被限定在磁芯与阀座之间。阀座限定将阀座的隔室与流出腔室流体地连接的孔口。推杆轴向可移动以打开和关闭孔口,以将阀座的隔室与流出腔室流体地连接和断开。阀座进一步限定止回阀孔口,该止回阀孔口进一步将阀座的隔室与流出腔室流体地连接。球覆盖止回阀孔口并且允许流体通过止回阀孔口从流出腔室流到阀座的隔室,同时防止流体通过止回阀孔口从阀座的隔室流到流出腔室。过滤器座被固定到阀座。球引导件被设置成与止回阀孔口对准并且限定引导通道(passage),该引导通道容纳球,用于朝向和远离止回阀孔口引导球。引导通道由阀座和过滤器座限定。
因此,本发明在其最广泛的方面提供了一种耐用且不易泄漏的电磁阀组件。更具体地,将止回阀孔口集成到阀座中减少了在止回阀孔口处随时间而磨损的风险,因为具有很少的部件,并且阀座可以由耐用材料(如金属)制成。
此外,由阀座和过滤器座限定引导通道提供了引导通道的简单且紧凑的设计,其允许电磁阀组件根据需要容易地拆卸和重新组装成适当的对准。
此外,电磁阀组件的整体设计紧凑、设计简单、制造容易且制造成本低廉。
附图说明
将容易理解本发明的其它优点,因为通过参考以下结合附图考虑的详细说明,本发明的其它优点将变得更好理解,其中:
图1是现有技术的电磁阀组件的侧横截面侧视图;
图2是根据本公开的一个方面的电磁阀组件的示例实施方式的侧横截面图;
图3是图2的电磁阀组件的示例实施方式的阀座和过滤器座的立体横截面图;
图4是图2的电磁阀组件的阀座的正面立体图;
图5是图2的电磁阀组件的过滤器座的背面立体图;以及
图6是图2的电磁阀组件的过滤器座的背面立体图。
具体实施方式
参照图2、图3、图4、图5和图6,其中贯穿这几个视图,相同的附图标记表示相应的部件,总体上示出了电磁阀组件20。题述电磁阀组件20被配置成通过控制作用在车轮制动器的轮缸上的液压来为车辆系统(诸如防抱死制动系统、牵引力控制系统或电子稳定程序系统)提供液压控制。应当理解,题述电磁阀组件20可以用于各种类型的车辆,包括但不限于汽车和摩托车。
如图2中最佳例示出的,电磁阀组件20包括限定孔24的调节器块22。孔24连接到与主缸相连接的内部流动路径26。孔24从主缸接收流体并将流体传递到主缸。磁芯28由孔24容纳并且围绕并沿着中心轴线A延伸,并且限定沿轴线A延伸的通路30。推杆34由通路30容纳并且响应于由电枢32和相关联的螺线管(未示出)提供的移动可相对于磁芯28沿着轴线A移动。
阀座36由磁芯28的通路30容纳并且限定流体地连接到内部流动路径26的隔室38。阀座36优选地由诸如金属的坚固(robust)材料制成。流出腔室40被限定在磁芯28与阀座36之间。阀座36进一步限定沿轴线A的孔口42,该孔口42将阀座36的隔室38与流出腔室40流体地连接。调节器块22进一步限定至少一个出口44,该至少一个出口44流体地连接到流出腔室40并且流体地连接到制动组件,用于在它们之间传输流体。
推杆34与阀座36的孔口42对准并且可与电枢32一起轴向移动以打开和关闭孔口42以将阀座36的隔室38与流出腔室40流体地连接和断开。弹簧46在阀座36与推杆34之间延伸并且轴向偏置推杆34远离阀座36。
阀座36具有大致管状的边缘部分48和远离边缘部分48轴向地延伸的大致管状的延伸部分50。延伸部分50具有比边缘部分48更小的直径。肩部52径向地延伸并且将边缘部分48与延伸部分50互连。延伸部分50限定所述孔口42。应当理解,边缘部分48和延伸部分50可以具有其它横截面形状。
带式过滤器54径向地设置在磁芯28与调节器块22之间,用于过滤在流出腔室40与出口44之间通过的流体。此外,O形环56径向地定位在阀座36的边缘部分48与调节器块22之间,用于防止流体在它们之间通过。支承环60轴向地定位在O形环56与带式过滤器54之间,用于轴向地将O形环56和带式过滤器54固定就位。
阀座36的肩部52限定将阀座36的隔室38与流出腔室40流体地连接的止回阀孔口62。在示例实施方式中,与限定常规阀组件20的止回阀孔口的材料相比,阀座36的肩部52由薄片材料构成,以允许止回阀孔口62容易地贯穿其穿孔。球64覆盖止回阀孔口62,以允许流体通过止回阀孔口62从流出腔室40流到阀座36的隔室38,并且防止流体通过止回阀孔口62从阀座36的隔室38流到流出腔室40。
应当理解,与通常利用塑料过滤器支撑件来限定止回阀孔口62的传统电磁阀组件20相比,使用深冲(deep drawn)阀座36来限定止回阀孔口62有利地提供了由于金属球64到金属阀座36的界面(interface)而导致的电磁阀组件20的改进的初始性能和延长的耐用性。题述布置还有利地降低了在止回阀孔口62处形成泄漏的风险。此外,深冲阀座36被用于限定阀气隙,诸如在电枢32与推杆34之间的阀气隙,因此维持通电的(energize)气隙设定顺序。
过滤器座68固定到阀座36的边缘部分48。过滤器座68包括大致管状的外壁70和大致管状的内壁72,内壁72从外壁70径向向内设置以在内壁72与外壁70之间限定狭槽74并且限定从内壁72径向向内的通道58。应当理解,外壁70和内壁72可以具有其它形状。过滤器66横跨过滤器座68的通道58垂直于轴线A延伸,用于过滤在通道58与内部流动路径之间的流体。
球引导件76被设置成与止回阀孔口62对准。球引导件76限定引导通道78,该引导通道78容纳球64并且轴向延伸,用于轴向地朝向和远离止回阀孔口62引导球64。引导通道78沿着比球64的直径大的长度轴向延伸,使得球可以在引导通道78内轴向移动。如图2和图3中最佳例示出的,引导通道78部分地由阀座36的边缘部分48的内表面和由过滤器座68限定的引导壁80限定。如图3、图5和图6中最佳例示出的,引导壁80是弧形的,并且从过滤器座68的内壁72径向向内突出。球引导件76还包括部分筒形部分82和从部分筒形部分82大致朝向止回阀孔口62轴向延伸的多个对准构件84。对准构件84沿引导壁80彼此均匀地间隔开。由于对准构件84彼此间隔开,所以引导通道78流体地连接到阀座36的隔室38。
球引导件76还包括限制球64远离止回阀孔口62的轴向移动的至少一个止动元件86。在示例实施方式中,止动元件86包括多个肋86,所述多个肋86从引导壁80的部分筒形部分82向内延伸。所述肋86中的每一个彼此均匀地间隔开并且与对准构件84中的一个轴向对准,以提供球引导件76的简单制造。
如图2和图3中最佳例示出的,阀座36的边缘部分48由过滤器座68的狭槽74容纳。过滤器座68固定到阀座36的边缘部分48的一端。过滤器座68还包括位于内壁72与外壁70之间的基部90。基部90限定轴向开口92。翼片(tab)94从阀座36的边缘部分48的末端轴向延伸到开口中,用于适当地将阀座36相对于过滤器座68周向对准,以确保球引导件76与止回阀孔口62适当对准。应当理解,可以使用任何数量的轴向开口92和相应的翼片94。
应当理解,球引导件76的设计以及阀座36与过滤器座68之间的界面使得电磁阀组件20紧凑、设计简单、成本低廉且易于制造,并且易于根据需要拆卸和重新组装。
显然,根据上述教导,本发明的许多修改和变型是可能的,并且这些修改和变型可以以与具体描述不同的方式来实施,同时在所附权利要求的范围内。这些在先陈述应该被理解为涵盖本发明新颖性实践其实用性的任何组合。
本申请要求于2017年6月14日提交的题为“Electromagnetic Valve Assembly”的序列号为62/519,646的美国临时专利申请以及2018年4月25日提交的序列号为15/963,084的美国正式专利申请的权益,其全部公开通过引用并入本文。
Claims (18)
1.一种电磁阀组件,所述电磁阀组件包括:
磁芯,所述磁芯围绕轴线并且沿着所述轴线延伸,并且限定通路;
阀座,所述阀座由所述磁芯的所述通路容纳并且限定隔室;
流出腔室,所述流出腔室被限定在所述磁芯与所述阀座之间;
所述阀座限定将所述阀座的所述隔室与所述流出腔室流体地连接的孔口;
推杆,所述推杆能够轴向移动以打开和关闭所述孔口,以将所述阀座的所述隔室与所述流出腔室流体地连接和断开;
所述阀座进一步限定将所述阀座的所述隔室与所述流出腔室流体地连接的止回阀孔口;
球,所述球覆盖所述止回阀孔口,允许流体通过所述止回阀孔口从所述流出腔室流到所述阀座的所述隔室,并且防止流体通过所述止回阀孔口从所述阀座的所述隔室流到所述流出腔室;
过滤器座,所述过滤器座被固定到所述阀座;以及
球引导件,所述球引导件与所述止回阀孔口对准并且限定引导通道,所述引导通道容纳所述球,用于朝向和远离所述止回阀孔口引导所述球,其中,所述引导通道由所述阀座和所述过滤器座限定。
2.根据权利要求1所述的电磁阀组件,其中,所述引导通道沿着比所述球的直径更大的长度轴向地延伸,用于朝向和远离所述止回阀孔口轴向地引导所述球。
3.根据权利要求2所述的电磁阀组件,其中,所述球引导件包括至少一个止动元件,所述至少一个止动元件被定位成在所述引导通道中与所述球轴向对准,用于限制所述球远离所述止回阀孔口的轴向移动。
4.根据权利要求1所述的电磁阀组件,其中,所述过滤器座包括外壁和从所述外壁径向向内设置的内壁,以在所述内壁与所述外壁之间限定狭槽并且限定从所述内壁向内的通道,并且其中,所述阀座包括边缘部分,所述边缘部分轴向地延伸并且由所述过滤器座的所述狭槽容纳。
5.根据权利要求4所述的电磁阀组件,其中,所述引导通道部分地由所述阀座的所述边缘部分限定。
6.根据权利要求5所述的电磁阀组件,其中,所述球引导件包括大致弧形的引导壁,所述引导壁从所述过滤器座的所述内壁径向向内突出。
7.根据权利要求6所述的电磁阀组件,其中,所述引导壁包括部分筒形部分和多个对准构件,所述多个对准构件从所述部分筒形部分大致朝向所述止回阀孔口轴向地延伸。
8.根据权利要求7所述的电磁阀组件,其中,所述对准构件沿着所述引导壁彼此均匀地间隔开。
9.根据权利要求6所述的电磁阀组件,其中,所述球引导件包括至少一个止动元件,所述至少一个止动元件限制所述球远离所述止回阀孔口的轴向移动,并且其中,所述止动元件包括从所述引导壁向内延伸的多个肋。
10.根据权利要求9所述的电磁阀组件,其中,所述多个肋彼此均匀地间隔开。
11.根据权利要求4所述的电磁阀组件,其中,所述过滤器座还包括在所述内壁与所述外壁之间的基部;所述基部限定轴向开口;并且其中,翼片从所述边缘部分轴向延伸到所述轴向开口中,用于将所述阀座相对于所述过滤器座周向对准。
12.根据权利要求4所述的电磁阀组件,其中,所述阀座还包括延伸部分,所述延伸部分大致为管状并且远离所述边缘部分轴向地延伸,其中,所述阀座限定在所述阀座的所述延伸部分与所述边缘部分之间的肩部,并且其中,所述止回阀孔口被轴向地限定到所述肩部中。
13.根据权利要求12所述的电磁阀组件,其中,过滤器横跨所述过滤器座的所述通道延伸,用于过滤通过所述通道的流体。
14.根据权利要求12所述的电磁阀组件,所述电磁阀组件还包括调节器块,所述调节器块限定容纳所述磁芯以及所述阀座和所述过滤器座的孔;所述调节器块限定流体地连接到所述过滤器座的所述通道和所述阀座的所述隔室的内部流动路径;并且所述调节器块限定出口,所述出口流体地连接到所述流出腔室,用于容纳流体以及将流体传递到制动组件。
15.根据权利要求14所述的电磁阀组件,所述电磁阀组件还包括带式过滤器,所述带式过滤器设置在所述出口上方的所述流出腔室中,用于过滤通过所述出口的流体。
16.根据权利要求15所述的电磁阀组件,所述电磁阀组件还包括径向地设置在所述阀座与所述调节器块之间的O形环,用于防止流体在所述调节器块与所述阀座之间通过。
17.根据权利要求16所述的电磁阀组件,所述电磁阀组件还包括轴向地设置在所述带式过滤器与所述O形环之间的支承环,用于将所述O形环和所述带式过滤器轴向固定就位。
18.根据权利要求1所述的电磁阀组件,其中,所述引导通道与所述阀座的所述隔室流体地连接。
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CN1483119A (zh) * | 2000-12-27 | 2004-03-17 | ITT������ҵ��˾ | 具有单向阀的快速连接器 |
CN101541604A (zh) * | 2006-11-16 | 2009-09-23 | 罗伯特·博世有限公司 | 电磁阀 |
CN102177057A (zh) * | 2008-10-10 | 2011-09-07 | 罗伯特·博世有限公司 | 电磁阀 |
CN102458938A (zh) * | 2009-06-09 | 2012-05-16 | 罗伯特·博世有限公司 | 用于电磁阀的阀芯和相应的电磁阀 |
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DE102010038506A1 (de) | 2010-07-28 | 2012-02-02 | Continental Teves Ag & Co. Ohg | Ventilanordnung, insbesondere für schlupfgeregelte Kraftfahrzeug-Bremsanlagen |
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CN1483119A (zh) * | 2000-12-27 | 2004-03-17 | ITT������ҵ��˾ | 具有单向阀的快速连接器 |
CN101541604A (zh) * | 2006-11-16 | 2009-09-23 | 罗伯特·博世有限公司 | 电磁阀 |
CN102177057A (zh) * | 2008-10-10 | 2011-09-07 | 罗伯特·博世有限公司 | 电磁阀 |
CN102458938A (zh) * | 2009-06-09 | 2012-05-16 | 罗伯特·博世有限公司 | 用于电磁阀的阀芯和相应的电磁阀 |
CN204372242U (zh) * | 2014-12-30 | 2015-06-03 | 浙江佰通防腐设备有限公司 | 一种缓闭消锤衬氟立式止回阀 |
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