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公开(公告)号：US06467754B2
公开(公告)日：2002-10-22
申请号：US09788740
申请日：2001-02-20
IPC分类号： F16K3144
摘要： A shield for a gas management pintle valve, such as an exhaust gas recirculation valve for an internal combustion engine, for mitigating leakage of gas and moisture along the valve pintle into the actuator, to prevent corrosion and failure of the actuator. The shield is a tubular member having an equatorial radial flange and is slidably mounted on the pintle in an annular chamber between the valve body and the actuator. The inner diameter of the tube is selected to be as close-fitting to the pintle as possible while still being slidable thereupon to be adapted to either of two operating positions. During engine shutdowns, the shield is drawn by gravity toward the valve body to form a first seal with the flange against the pintle bearing or a bearing splash shield, preventing or minimizing the escape of moist, hot gases under low pressure from the valve along the pintle. During engine running, high-pressure exhaust gases within the valve may be forced along the pintle through the bearing bore and bearing splash shield toward the actuator. The gases force the shield to slide along the pintle, opening the first seal and forming a second seal with the flange against the actuator, allowing the leaked gases to escape radially from the pintle without invading the actuator.
摘要翻译： 用于气体管理枢轴阀的屏蔽件，例如用于内燃机的废气再循环阀，用于减轻沿着气门栓的气体和湿气泄漏到致动器中，以防止致动器的腐蚀和故障。 屏蔽是具有赤道径向凸缘的管状构件，并且在阀体和致动器之间的环形室中可滑动地安装在枢栓上。 管的内径被选择为尽可能紧密地对应枢轴，同时仍然可以滑动以适应于两个操作位置中的任一个。 在发动机关闭期间，护罩通过重力被引导到阀体，以形成第一密封件，凸缘抵靠枢轴轴承或轴承防溅罩，防止或最小化低压下潮湿的热气体从阀沿着沿着 枢轴 在发动机运转期间，阀内的高压废气可能沿着枢轴通过轴承孔和轴承防溅罩朝致动器被迫。 气体迫使屏蔽件沿着枢轴滑动，打开第一密封件并与凸缘相对于致动器形成第二密封，允许泄漏的气体从枢轴径向脱离而不侵入致动器。
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公开(公告)号：US06543746B2
公开(公告)日：2003-04-08
申请号：US09790271
申请日：2001-02-21
申请人： Raul A. Bircann , Dwight O. Palmer
发明人： Raul A. Bircann , Dwight O. Palmer
IPC分类号： F16K3144
摘要： A system for containing leakage along a pintle shaft in a pintle-type gas control valve, such as an exhaust gas recirculation valve for an internal combustion engine or a reformate diverter valve for a fuel cell, comprising a novel seal element and means for sealing the element to the valve's pintle shaft bearing and to an interrupted pintle shaft. The system comprises two elements: a positive vapor block in the form of an elastomeric boot or folded diaphragm disposed across the pintle interruption, and a pintle shaft bearing disposable in the valve's body and sealingly secured to the boot or diaphragm. The system may include a coil spring disposed in compression within the boot or diaphragm.
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公开(公告)号：US06604542B1
公开(公告)日：2003-08-12
申请号：US09721257
申请日：2000-11-22
申请人： Raul A. Bircann , Dwight O. Palmer
发明人： Raul A. Bircann , Dwight O. Palmer
IPC分类号： F16K3102
CPC分类号： F02M26/68 , F02M26/53 , F02M26/67 , Y10T137/5109 , Y10T137/5283
摘要： A modular EGR valve includes an actuator subassembly and a metering subassembly. The metering subassembly defines a metering port and a metering chamber. The metering port and the metering chamber have a predetermined relative configuration. The metering subassembly is configured for being coupled to the actuator subassembly and for being coupled to an engine.
摘要翻译： 模块化EGR阀包括致动器子组件和计量子组件。 计量组件限定计量口和计量腔。 计量口和计量腔具有预定的相对构型。 测量子组件被配置为联接到致动器子组件并且被耦合到发动机。
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公开(公告)号：US06497226B2
公开(公告)日：2002-12-24
申请号：US09778609
申请日：2001-02-07
申请人： Raul A. Bircann , Dwight O. Palmer
发明人： Raul A. Bircann , Dwight O. Palmer
IPC分类号： F02M2507
摘要： An improved modular, radially-compliant, redundantly-sealing journal-type bearing assembly comprising two bearing elements retained in a housing and positively loaded in opposing directions by a compression spring disposed therebetween. A shaft to be supported and sealed against leakage by the bearing, such as a valve pintle shaft, is disposed in an axial bore in each of the bearing elements, which bores are fitted as closely to the diameter of the shaft as is possible without causing the shaft to bind in the bores. Each of the radial bearing faces opposite the spring forms a seal with a corresponding internal surface of the housing, defining thereby a redundant sealing system. The bearings are radially compliant within the housing by a predetermined small distance to allow the shaft to be operatively self-centered, such as by an attached valve head mating into a valve seat. The improved bearing assembly may be pre-assembled offline to facilitate its incorporation into an apparatus, for example, a fuel cell valve, and may also be retrofitted into existing apparatus, for example, an exhaust gas recirculation valve.
摘要翻译： 一种改进的模块化，径向兼容的，冗余密封的轴颈类型轴承组件，其包括保持在壳体中的两个轴承元件并且通过设置在其间的压缩弹簧以相反的方向被正负载。 被支撑和密封以防止诸如阀枢轴的轴承泄漏的轴被布置在每个轴承元件中的轴向孔中，该孔被尽可能地紧密地装配到轴的直径，而不会导致 轴在孔中结合。 与弹簧相对的每个径向支承面形成与壳体的相应内表面的密封，由此形成冗余的密封系统。 轴承在壳体内径向顺应预定的较小距离，以允许轴可操作地自对中，例如通过连接的阀头配合到阀座中。 改进的轴承组件可以离线预组装以便于其结合到装置中，例如燃料电池阀，并且还可以被改装到现有装置中，例如废气再循环阀。
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公开(公告)号：US06634346B2
公开(公告)日：2003-10-21
申请号：US09955528
申请日：2001-09-18
申请人： Raul A. Bircann , Dwight O. Palmer
发明人： Raul A. Bircann , Dwight O. Palmer
IPC分类号： F02M2507
摘要： A subassembly module including a pintle bearing, bearing retaining spring, and bearing splash shield for an exhaust gas recirculation (EGR) valve for an internal combustion engine. The bearing is provided with a circumferential flange for sealing with an outer surface of the valve body, and with an annular step in the flange for receiving the rolled or crimped skirt of the bearing splash shield. The bearing retaining spring surrounding the valve pintle is compressed and captured within the splash shield as the skirt is formed onto the annular step to form the module. The axial length of the module is slightly greater than the assembled distance between the valve body and the actuator of the EGR valve, such that the module is compressed by installation of the actuator onto the valve body, allowing the compressed spring to urge the bearing face sealingly against the valve body. Advantageously, the subassembly module may be pre-assembled offline by known methods to reduce complexity during assembly of the valve.
摘要翻译： 一种组件模块，包括用于内燃机的废气再循环（EGR）阀的枢轴承，轴承保持弹簧和轴承防溅罩。 轴承设置有用于与阀体的外表面密封的圆周凸缘，并且在法兰中具有环形台阶，用于接收轴承防溅罩的卷曲或卷曲的裙部。 当裙部形成在环形台阶上时，围绕阀枢轴的轴承保持弹簧被压缩并捕获在防溅罩内，以形成模块。 模块的轴向长度略大于阀体与EGR阀致动器之间的组合距离，使得模块通过将致动器安装在阀体上而被压缩，从而允许压缩弹簧推动轴承面 密封地抵靠阀体。 有利地，子组件模块可以通过已知方法脱机预组装，以减少在组装阀期间的复杂性。
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公开(公告)号：US06538543B2
公开(公告)日：2003-03-25
申请号：US09777322
申请日：2001-02-06
申请人： Raul A. Bircann , Dwight O. Palmer
发明人： Raul A. Bircann , Dwight O. Palmer
IPC分类号： H01F708
CPC分类号： F16K31/0655 , F02M26/53 , F02M26/58 , F02M26/67 , F02M26/74 , H01F7/1607 , H01F2007/163
摘要： An improved solenoid for providing linear actuation. The outer polepiece of the solenoid is provided with a plurality of radially-dispersed labyrinthine passageways in communication between the exterior of the solenoid and an interior region including the armature and the interior of the windings. The polepiece is further provided with at least one passageway in communication between the exterior of the solenoid and an outer periphery of the windings within the housing. The two sets of passageways impede particles and droplets of moisture from entering the solenoid, while simultaneously permitting moisture such as condensation within the solenoid to evaporate and escape.
摘要翻译： 用于提供线性驱动的改进螺线管。 螺线管的外部极靴设置有多个径向分散的迷路通道，其在螺线管的外部和包括电枢和绕组内部的内部区域之间连通。 磁极还设置有至少一个在螺线管的外部和壳体内的绕组的外周之间连通的通道。 两组通道阻止水分的颗粒和液滴进入螺线管，同时允许水分如螺线管内的冷凝物蒸发并逸出。
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公开(公告)号：US06453934B1
公开(公告)日：2002-09-24
申请号：US09778538
申请日：2001-02-07
申请人： Raul A. Bircann , Dwight O. Palmer
发明人： Raul A. Bircann , Dwight O. Palmer
IPC分类号： F16K1100
CPC分类号： F16J15/3288 , F02M26/50 , F02M26/53 , F02M26/67 , F02M26/74 , F16K51/00 , Y10T137/4273
摘要： The present invention is directed to an annular metal-bristled brush for cleaning the pintle shaft of a pintle valve, such as an exhaust gas recirculation valve for an internal combustion engine, to prevent coking and failure of the valve. The brush surrounds the shaft, the tips of the bristles making contact with the shaft with sufficient force to dislodge incipient coke deposits but with insufficient force to inhibit the axial motion of the pintle shaft in actuation. Preferably, the brush is disposed in an annular space in the valve body between the pintle shaft bearing and the gas-metering chamber such that the shaft is brushed in both directions during each actuative cycle of the valve. Preferably, the annular space is slightly larger both axially and radially than the corresponding dimensions of the brush so that the brush is free to float without binding the pintle shaft.
摘要翻译： 本发明涉及一种用于清洁针阀的枢轴的环形金属刷毛刷，例如用于内燃机的排气再循环阀，以防止阀的结焦和失效。 刷子围绕轴，刷毛的尖端以足够的力与轴接触以移除初始焦炭沉积物，但是具有不足的力以阻止枢轴在致动中的轴向运动。 优选地，刷子设置在枢轴轴承和气体计量室之间的阀体中的环形空间中，使得轴在阀的每个致动循环期间在两个方向上被刷洗。 优选地，环形空间在轴向和径向上略大于刷子的相应尺寸，使得刷子自由浮动而不绑定枢轴。
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公开(公告)号：US06439213B2
公开(公告)日：2002-08-27
申请号：US09788741
申请日：2001-02-20
申请人： Raul A. Bircann , Dwight O. Palmer
发明人： Raul A. Bircann , Dwight O. Palmer
IPC分类号： F02M2502
摘要： A leakage arresting system comprising a novel gas arrestor for installation on an interrupted pintle shaft in a pintle-type valve, such as an exhaust gas recirculation valve for an internal combustion engine, for preventing leakage of gas and moisture along the pintle shaft into the actuator, to prevent corrosion and failure of the actuator. The system comprises two elements: a pintle shaft which is interrupted outside the actuator, and a positive vapor block in the form of a cup-shaped arrestor disposed across the pintle interruption. The invention is applicable to both unbalanced and force-balanced valves.
摘要翻译： 一种泄漏阻止系统，包括新颖的气体放电器，用于安装在枢轴式阀（例如用于内燃机的排气再循环阀）的中断的枢轴上，用于防止气体和水分沿着枢轴转入致动器 ，以防止致动器的腐蚀和故障。 该系统包括两个元件：在致动器外部中断的枢轴，以及设置成跨过枢轴中断的杯形避雷器形式的正蒸汽块。 本发明适用于不平衡和力平衡阀。
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公开(公告)号：US06955336B2
公开(公告)日：2005-10-18
申请号：US09777471
申请日：2001-02-06
申请人： Raul A. Bircann , Dwight O. Palmer
发明人： Raul A. Bircann , Dwight O. Palmer
CPC分类号： H01F7/1607 , F02M26/53 , F02M26/67
摘要： An improved electric solenoid for providing linear mechanical actuation. The outer polepiece of the solenoid is provided with an axial, self-lubricated, non-magnetic bearing for closely supporting and centering an actuating shaft extending coaxially from the solenoid armature. Preferably, the radial tolerance between the diameters of the bearing inner bore and the shaft is as small as in practically possible without inducing drag of the shaft in the bearing, permitting reduction of the air gap between the armature and the polepieces to a minimal thickness. Preferably, the armature is axially tapered to avoid contact of the armature with the polepieces as a result of residual tolerances between the bearing and shaft. A significant increase in actuating force is realized in comparison with a prior art solenoid, and the improved solenoid may be used in any desired orientation.
摘要翻译： 一种改进的电磁线圈，用于提供线性机械驱动。 螺线管的外部极靴设置有轴向，自润滑的非磁性轴承，用于紧密地支撑和定心从螺线管电枢同轴延伸的致动轴。 优选地，轴承内孔和轴的直径之间的径向公差尽可能地小，而不会引起轴在轴承中的阻力，从而允许将电枢和极片之间的气隙减小至最小厚度。 优选地，电枢是轴向锥形的，以避免由于轴承和轴之间的残余公差而导致衔铁与极片接触。 与现有技术的螺线管相比，实现了致动力的显着增加，并且改进的螺线管可以以任何期望的方向使用。
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公开(公告)号：US06759934B2
公开(公告)日：2004-07-06
申请号：US10004638
申请日：2001-12-05
IPC分类号： H01F300
CPC分类号： H01F7/081 , F16K31/0655 , F16K31/0675
摘要： A proportionally-controllable solenoid including primary and secondary pole pieces that surround an armature axially movable along an axial channel within the pole pieces. The pole pieces are separated axially by an air gap and are conically tapered toward the gap. The leading and trailing faces of the armature are substantially orthogonal to its direction of travel to minimize radial parasitic forces on these faces. Further, the armature is also lengthened such that the trailing face is always outside the axial channel in the secondary pole piece at all points of axial travel to minimize the pull-back effect of axial flux vectors on the trailing face.
摘要翻译： 一种按比例控制的螺线管，包括主极和次级极片，其包围可沿着极片内的轴向通道轴向移动的衔铁。 极片由气隙轴向分开，并且朝向间隙锥形渐缩。 电枢的前导面和后表面基本上与其行进方向正交，以最小化这些面上的径向寄生力。 此外，电枢也被延长，使得在轴向行进的所有点处，后面总是在次级极片中的轴向通道的外侧，以最小化轴向通量矢量在后表面上的回拉效应。
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