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公开(公告)号：US5921261A
公开(公告)日：1999-07-13
申请号：US853015
申请日：1997-05-08
IPC分类号： F16L55/052 , G05D7/01 , G05D16/02 , F16K31/40
CPC分类号： G05D16/02 , F16L55/052 , G05D16/2093 , Y10T137/0318
摘要： A diaphragm type flow regulator has an electrically operated bleed valve to control fluid signal pressure in a chamber on one side of the diaphragm. A valve member mounted on the opposite side of the diaphragm is moved, in response to the difference in pressure between the signal chamber and a flow regulating chamber, with respect to a valve seat for controlling flow of a compressible fluid between an inlet and outlet in the flow regulating chamber. An auxiliary chamber communicates with the flow regulating chamber through a restricting orifice which function to dampen or attenuate diaphragm vibration caused by pressure pulses or transients which may occur in the fluid supply conduit. In one arrangement the auxiliary chamber is formed as part of the regulator housing. In other arrangements, the auxiliary chamber is formed as part of a separate fitting attached to the regulator flow regulating chamber inlet.
摘要翻译： 隔膜式流量调节器具有电动放气阀，以控制隔膜一侧的腔室中的流体信号压力。 响应于信号室和流量调节室之间的压力差相对于阀座移动安装在隔膜的相对侧上的阀构件，用于控制可压缩流体在入口和出口之间的流动 流量调节室。 辅助室通过限制孔与流量调节室连通，该限制孔用于抑制或衰减由可能在流体供应管道中发生的压力脉冲或瞬变引起的隔膜振动。 在一种布置中，辅助室形成为调节器壳体的一部分。 在其他布置中，辅助室形成为附接到调节器流量调节室入口的单独配件的一部分。
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公开(公告)号：US5853018A
公开(公告)日：1998-12-29
申请号：US808557
申请日：1997-02-28
CPC分类号： G05D16/02 , F16K47/00 , G05D16/2093
摘要： A diaphragm type flow regulator has an electrically operated bleed valve to control fluid signal pressure in a chamber on one side of the diaphragm. A valve member mounted on the opposite side of the diaphragm is moved, in response to the difference in pressure between the signal chamber and a flow regulating chamber, with respect to a valve seat for controlling flow of a compressible fluid between an inlet and outlet in the flow regulating chamber. An inertial mass is mounted for limited, resiliently opposed movement on the diaphragm, and serves to dampen diaphragm vibration caused by pressure pulses in the fluid supply conduit.
摘要翻译： 隔膜式流量调节器具有电动放气阀，以控制隔膜一侧的腔室中的流体信号压力。 响应于信号室和流量调节室之间的压力差相对于阀座移动安装在隔膜的相对侧上的阀构件，用于控制可压缩流体在入口和出口之间的流动 流量调节室。 安装惯性质量块用于隔膜上的有限的弹性相对的运动，并且用于抑制由流体供应管道中的压力脉冲引起的隔膜振动。
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公开(公告)号：US5967183A
公开(公告)日：1999-10-19
申请号：US6266
申请日：1998-01-13
CPC分类号： F02M25/0836 , F17C13/04 , Y10T137/86187 , Y10T137/86324 , Y10T137/88054
摘要： A fuel vapor canister purge control valve assembly has an electric valve and a pressure regulator valve for connection at its inlet to a canister fluidically in series in a common housing. The electric valve has a spherical magnetically permeable operator biased closed against the seat by a balanced rotary armature. A C-shaped solenoid pole frame defines diametrally oppositely disposed radial working air gaps with the armature. Upon PWM energization of the solenoid, the armature rotation permits the spherical valve member to move from the seat to open the valve. A venturi is formed in the electric valve inlet and the venturi throat has a pressure tap connected to provide a reference pressure for one side of the pressure regulator diaphragm. The opposite side of the regulator diaphragm has an elastomeric obturator and is exposed to the outlet pressure of the electric valve. The elastomeric obturator is moveable with respect to another valve seat for controlling flow to the outlet for connection to an engine inlet manifold.
摘要翻译： 燃料蒸汽罐清洗控制阀组件具有电动阀和压力调节阀，用于在其入口处与流体地串联连接在公共壳体中的罐连接。 电动阀具有通过平衡的旋转电枢偏压靠在座上的球形导磁操作器。 C形螺线管极框架与电枢限定径向相对设置的径向工作气隙。 在螺线管的PWM通电时，电枢旋转允许球形阀构件从阀座移动以打开阀。 文丘里管形成在电动阀入口中，并且文氏管喉部具有连接的压力分接头，以为压力调节器膜片的一侧提供参考压力。 调节器隔膜的相对侧具有弹性闭塞器并暴露于电动阀的出口压力。 弹性闭塞器相对于另一个阀座可移动，用于控制到出口的流动以连接到发动机入口歧管。
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公开(公告)号：US5277167A
公开(公告)日：1994-01-11
申请号：US13750
申请日：1993-02-04
CPC分类号： F02M25/0836 , F02M2025/0845
摘要： A flow regulator for automotive vehicles of the type having a computer-controlled emission control system. The flow regulator has an electric vacuum regulator (EVR) valve that regulates the vacuum signal provided to a vacuum regulator valve in accordance with the current signal supplied to the EVR valve by the engine controller unit. The vacuum regulator valve includes a control chamber and a valve chamber that are separated by a movable diaphragm valve assembly. The preload on a biasing spring acting on the diaphragm valve assembly can be adjusted during calibration of the flow regulator for setting a first calibration point. An adjustable flow restrictor provided in the inlet portion of the vacuum regulator valve can be varied during calibration for setting a second calibration point. In operation, the flow regulator is operable to generate substantially linear output flow characteristic between the two calibration points as a function of the current signal in a manner that is independent of changes in manifold vacuum.
摘要翻译： 一种用于具有计算机控制的排放控制系统的类型的汽车的流量调节器。 流量调节器具有电动真空调节器（EVR）阀，其根据由发动机控制器单元提供给EVR阀的电流信号来调节提供给真空调节阀的真空信号。 真空调节阀包括由可移动隔膜阀组件分开的控制室和阀室。 作用在隔膜阀组件上的偏置弹簧上的预载荷可以在用于设定第一校准点的流量调节器的校准期间被调节。 设置在真空调节阀的入口部分中的可调节流量限制器可以在校准期间改变以设置第二校准点。 在操作中，流量调节器可操作为以与歧管真空度的变化无关的方式，作为电流信号的函数，在两个校准点之间产生基本线性的输出流特性。
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5.发明授权Method of controlling fuel vapor canister purge flow and vapor management valve therefor 失效控制燃油蒸汽罐吹扫流量和蒸汽管理阀的方法
公开(公告)号：US5893354A
公开(公告)日：1999-04-13
申请号：US154117
申请日：1998-09-16
CPC分类号： F02M25/0836 , F02M2025/0845
摘要： A fuel vapor management valve or VMV having an electrically operated vent valve for controlling atmospheric bleed flow to a vacuum signal pressure chamber. The pressure in the signal pressure chamber controls the differential pressure acting on opposite sides of a diaphragm which moves a valve member for regulating fuel vapor purge flow from a canister to the engine intake manifold. Vacuum is applied to the signal pressure chamber through restrictive passages in a connector which prevent sonic flow choking. In one embodiment two orifices are spaced fluidically in series. In another embodiment fluidically parallel laminar flow passages are provided in an element comprising a porous filter preferably formed of fibrous material or sintered metal. In another embodiment, the laminar flow element is disposed fluidically in series with a flow restricting orifice.
摘要翻译： 一种燃料蒸汽管理阀或VMV，具有用于控制大气排放到真空信号压力室的电动排气阀。 信号压力室中的压力控制作用在隔膜的相对侧上的压差，其使阀构件移动，以将燃料蒸气吹扫流从罐排出到发动机进气歧管。 真空通过连接器中的限制通道施加到信号压力室，防止声流窒息。 在一个实施例中，两个孔是串联地间隔开的。 在另一个实施例中，流体平行的层流通道设置在包括优选由纤维材料或烧结金属形成的多孔过滤器的元件中。 在另一个实施例中，层流元件与流动限制孔流体地配置。
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公开(公告)号：US5749349A
公开(公告)日：1998-05-12
申请号：US738939
申请日：1996-10-24
CPC分类号： F02M25/0836 , F02M2025/0845
摘要： An electrically controlled vacuum operated valve controls flow of fuel vapors from a collector canister to the engine intake manifold. A pressure regulator controls fuel vapor flow from the canister to the inlet of the electric valve and is normally closed. During engine operation, if the control valve maintains a threshold level of vacuum at the regulator outlet, the regulator will permit fuel vapor flow from the canister to the control valve, otherwise the regulator is closed.
摘要翻译： 电控真空操作阀控制燃料蒸汽从收集器罐到发动机进气歧管的流动。 压力调节器控制从罐到燃气蒸汽流到电动阀的入口，并且通常是关闭的。 在发动机运行期间，如果控制阀在调节器出口处保持阈值水平的真空度，则调节器将允许燃料蒸气从罐到流量到控制阀，否则调节器关闭。
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公开(公告)号：US6119661A
公开(公告)日：2000-09-19
申请号：US135602
申请日：1998-08-18
CPC分类号： F02M25/0836 , F02M25/089
摘要： A fuel tank vapor management valve (VMV) for controlling purge flow from a vapor storage canister to an engine inlet manifold. In one embodiment, an existing VMV utilizing an electrically operated atmospheric bleed valve or EVR for controlling vacuum pressure on one side of the regulator valve diaphragm is modified to have an additional vacuum ported valve seat in the EVR to be opened and closed by the bleed valve instead of providing a vacuum port in the regulator diaphragm signal pressure chamber. The inlet of the EVR is connected to the storage canister instead of being ported to the atmosphere which equalizes canister pressure across the regulator diaphragm thus preventing undesired opening of the regular valve when the engine is shut off. In another embodiment, an existing VMV is unmodified, with the EVR bleed port connected to the canister and the shut-off valve is connected in the line connecting the engine manifold with the regulator valve diaphragm signal pressure chamber. The shut-off valve may be either electrically operated or pressure actuated by engine manifold vacuum.
摘要翻译： 一种用于控制从蒸气储存罐到发动机入口歧管的吹扫流的燃料箱蒸气管理阀（VMV）。 在一个实施例中，利用电动大气排放阀或EVR控制调节阀隔膜一侧上的真空压力的现有VMV被修改为在EVR中具有附加的真空端口阀座，以通过排放阀打开和关闭 而不是在调节器膜片信号压力室中提供真空端口。 EVR的入口连接到储存罐，而不是被输送到大气中，这样可以使整个调节器隔膜上的罐压力相等，从而防止了在发动机关闭时常规阀的不期望的打开。 在另一个实施例中，现有的VMV未被修改，其中EVR排出口连接到罐，截止阀连接在将发动机歧管与调节阀隔膜信号压力室相连接的管路中。 截止阀可以由发动机歧管真空电动操作或压力驱动。
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公开(公告)号：US5941218A
公开(公告)日：1999-08-24
申请号：US45781
申请日：1998-03-20
CPC分类号： F02M25/0836 , Y10T137/7895
摘要： An electrically controlled fuel vapor canister purge pressure regulator valve assembly has the regulator valve housing formed integrally with the solenoid operated valve body. A pressure responsive diaphragm is disposed in the housing to form on opposite sides thereof, an inlet chamber and an outlet chamber. The valve body has an inlet passage communicating with the inlet chamber and an outlet passage communicating with the outlet passage. The solenoid controls by-pass flow around the diaphragm to the outlet chamber. The outlet passage is closed by a closure member defining an outlet passage and valve seat. The diaphragm has a plate thereon moveable with the diaphragm to control flow over the valve seat. The outlet closure member encloses the diaphragm periphery and is sealed to the housing by a weld ring which may be spin friction or ultrasonically welded to the housing. An inlet chamber closure member forms an inlet fitting and inlet passage and retains a filter in the inlet chamber. The inlet closure member is sealed to the housing by a weld ring similar to the outlet closure member.
摘要翻译： 电控燃油蒸汽罐吹扫压力调节阀组件具有与电磁阀体一体形成的调节阀壳体。 压力响应膜片设置在壳体中以在其相对侧，入口室和出口室上形成。 阀体具有与入口室连通的入口通道和与出口通道连通的出口通道。 螺线管控制隔膜周围的旁路流到出口室。 出口通道由限定出口通道和阀座的封闭构件封闭。 隔膜具有可与隔膜一起运动的板，以控制阀座上的流动。 出口关闭构件包围隔膜周边，并且通过可以旋转摩擦或超声波焊接到壳体的焊接环密封到壳体。 入口室关闭构件形成入口配件和入口通道并将过滤器保持在入口室中。 入口关闭构件通过类似于出口闭合构件的焊接环密封到壳体。
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公开(公告)号：US06412335B1
公开(公告)日：2002-07-02
申请号：US09708941
申请日：2000-11-08
IPC分类号： G01M308
CPC分类号： F02M25/0836 , F02M25/0809 , F02M2025/0845
摘要： A solenoid operated valve is connected in series with a resistor and a PTC thermistor. Upon coil energization, the armature moves to close the valve member against a valve seat and further armature movement to close an air gap with a pole piece is absorbed by a spring between the armature and valve member. Upon closure of the air gap, the magnetic reluctance between the armature and pole piece is decreased such that significantly less current is required in the coil to hold the valve closed. Upon heating of the thermistor, the resistance is increased sufficiently to reduce the current to the hold-close level and less power is required thereafter to maintain the valve closed. The valve is applied to on-board vehicle diagnostic procedures performed after engine shut-down where current must be minimized to prevent battery drain to a level preventing re-start.
摘要翻译： 电磁阀与电阻和PTC热敏电阻串联连接。 在线圈通电时，衔铁移动以关闭阀座抵靠阀座，并且进一步的电枢运动以与极片关闭气隙由电枢和阀构件之间的弹簧吸收。 在关闭气隙时，电枢和极片之间的磁阻减小，使得在线圈中需要明显更少的电流来保持阀关闭。 在加热热敏电阻时，电阻增加到足以将电流降低到保持 - 关闭电平，并且之后需要较少的功率来维持阀关闭。 发动机关闭后，阀门应用于车载诊断程序，其中电流必须最小化，以防止电池排放到防止再启动的水平。
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公开(公告)号：US5970958A
公开(公告)日：1999-10-26
申请号：US949106
申请日：1997-10-10
CPC分类号： F02M25/0836 , F02M2025/0845
摘要： A variable area valve and pressure regulator for providing fuel vapor purge control in an evaporative emission control system of an automotive vehicle. A solenoid valve assembly selectively controls fluid communication between a fuel vapor source and an intake manifold by varying the area of an orifice associated with the solenoid valve assembly. A pressure regulator assembly is responsive to pressure differentials between an inlet cavity and an outlet cavity to further control the flow through the purge regulator. In operation, the purge regulator assembly is operable to generate nonlinear output flow characteristics which are independent of changes in the intake manifold vacuum, as well as the inlet pressure, and which further provides the desired nonlinear response.
摘要翻译： 一种用于在汽车的蒸发排放控制系统中提供燃料蒸汽清除控制的可变区域阀和压力调节器。 电磁阀组件通过改变与电磁阀组件相关联的孔的面积选择性地控制燃料蒸气源和进气歧管之间的流体连通。 压力调节器组件响应于入口腔和出口空腔之间的压力差，以进一步控制通过吹扫调节器的流量。 在操作中，净化调节器组件可操作以产生独立于进气歧管真空以及入口压力的变化的非线性输出流动特性，并进一步提供期望的非线性响应。
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