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公开(公告)号：US4457278A
公开(公告)日：1984-07-03
申请号：US479215
申请日：1983-03-28
CPC分类号： F02M71/02 , Y10S261/74
摘要： A fuel supply system for a mixture-compressing internal combustion engine employs a controllable differential pressure for the removal of air from a main air duct into a carrier air duct for proportioning the fuel to be used. The fuel system includes a fuel proportioning device and a vane pump for withdrawing a carrier air flow from the main air duct and for transporting the fuel through feed lines to the internal combustion engine. The pressure of the air at the fuel outlet and the differential pressure for fuel proportioning is controlled by a differential pressure valve located in the carrier air duct spaced from the main air duct. The differential pressure valve has a diaphragm dividing the interior of the valve into chambers with one side of the diaphragm acted upon by the air pressure in the carrier duct between the differential pressure valve and the main air duct. The other side of the diaphragm is acted upon by the pressure in the carrier air duct downstream from the differential pressure valve and also by a variable force depending on the parameters of the engine. To prevent pulsations in the air flow from disadvantageously affecting the differential pressure valve, the diaphragm in the valve is separated by a partition from a space in which such pulsations are effective. The air pressure in the carrier air duct upstream from the differential pressure valve acts in the space and the partition has a nozzle for admitting the air pressure to the one side of the diaphragm.
摘要翻译： 用于混合压缩内燃机的燃料供应系统采用可控制的压差，以将空气从主空气管道移除到用于使所用燃料配比的载体空气管道中。 燃料系统包括燃料配比装置和叶片泵，用于从主空气管道中抽出载气流并将燃料通过进料管路输送到内燃机。 燃料出口处的空气压力和燃料配比的差压由位于与主风道隔开的载气管道中的差压阀控制。 差压阀具有将阀的内部分隔成室的隔膜，隔膜的一侧由差压阀和主风道之间的载体管道中的空气压力作用。 隔膜的另一侧由差压阀下游的承载空气管道中的压力和取决于发动机参数的可变力作用。 为了防止空气流中的脉动不利地影响差压阀，阀中的隔膜由这样的脉动有效的空间分隔开。 在差压阀上游的载气导管中的空气压力作用在空间中，并且分隔件具有用于将空气压力承认到隔膜一侧的喷嘴。
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公开(公告)号：US4433662A
公开(公告)日：1984-02-28
申请号：US405232
申请日：1982-08-04
申请人： Hans-J/u/ rgen M/u/ ller , Karl Schmidt , Asoke Chattopadhayay , Rolf P. Heidemanns , Georg Habel , Ortwin Wittman
发明人： Hans-J/u/ rgen M/u/ ller , Karl Schmidt , Asoke Chattopadhayay , Rolf P. Heidemanns , Georg Habel , Ortwin Wittman
CPC分类号： F02M71/02 , F02M17/09 , Y10S261/74
摘要： a fuel system for mixture-compressing internal combustion engines controls the pressure differential of the extraction air required for proportioning the fuel. The system includes a fuel proportioning device and a vane pump for generating a carrier air stream for transporting the fuel into the suction tube of the internal combustion engine. A control valve constructed as a differential pressure valve influences the air pressure at the fuel outlet area and consequently the differential pressure for fuel proportioning. The throttle point is located in the carrier air channel upstream from the fuel proportioning area. A change in differential pressure adapts the mixture composition for various operating conditions. The signal level of the differential pressure is determined by the pressure decrease at the air quantity measuring valve formed as a pivotal flap and reaches the air channel where it is superimposed by the negative pressure, generated by the vane pump, and can be stabilized by the differential pressure valve and can be varied in dependence on motor operating parameters. To generate adequately high signal levels in the higher load range, the carrier air channels open into a Venturi arranged upstream from the main throttle valve. During different operating phases of the engine, various devices make it possible to maintain an adequately high signal value of the differential pressure.
摘要翻译： 用于混合压缩内燃机的燃料系统控制比例燃料所需的提取空气的压力差。 该系统包括燃料配比装置和叶片泵，用于产生用于将燃料输送到内燃机的吸入管中的载气流。 构造为差压阀的控制阀影响燃料出口区域处的空气压力，并因此影响燃料配比的差压。 节流点位于燃料配比区域上游的载体空气通道中。 差压的变化适应各种操作条件下的混合物组成。 差压的信号水平由形成为枢转挡板的空气量测量阀的压力降低确定，并且通过由叶片泵产生的负压叠加到空气通道上，并且可以由 差压阀，可根据电机运行参数变化。 为了在较高负载范围内产生足够高的信号电平，载体空气通道打开到设置在主节流阀上游的文氏管。 在发动机的不同运行阶段，各种装置使得可以保持压差的足够高的信号值。
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公开(公告)号：US3936237A
公开(公告)日：1976-02-03
申请号：US416283
申请日：1973-11-15
申请人： Asoke Chattopadhayay , Georg Habel
发明人： Asoke Chattopadhayay , Georg Habel
CPC分类号： F04B45/041 , F04B49/24 , G01P3/28
摘要： A membrane-air pump functioning as a tachometer, having a first flow circuit whose pneumatic flow or pressure values serve as speed-dependent guide parameters for control or regulating apparatus. A second flow circuit leads from the pressure or delivery side of the membrane-air pump to the suction side thereof, and in which there is incorporated a flow throttle and a spring-loaded relief pressure valve in series connection with the second flow circuit. Preferably, the flow throttle, as well as the relief pressure valve are adjustable.
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公开(公告)号：US5752484A
公开(公告)日：1998-05-19
申请号：US596248
申请日：1996-09-13
申请人： Peter Apel , Klaus Wilczek , Dirk Wuestenbecker , Georg Habel , Ottmar Kappes , Sergio Hector Rangel Cruz
发明人： Peter Apel , Klaus Wilczek , Dirk Wuestenbecker , Georg Habel , Ottmar Kappes , Sergio Hector Rangel Cruz
CPC分类号： F02D9/1065 , F02D11/107 , F02D9/02 , F02D9/10 , F02D2009/0269 , F02D2009/0277
摘要： The invention relates to a throttle valve device including a housing (4; 54; 54'; 98), a throttle valve spindle (3; 53; 53'; 99) on which a throttle valve (2; 52; 52'; 100) movable in the housing (4; 54; 54'; 98) between a first air passage chamber (62; 62'; 92) and a second such chamber (63; 63'; 103) leading to the vehicle engine is held in at least one closed position (DS), an idling position (MS) and a full-throttle position (VS) and a control unit (11; 61; 61'; 107) having at least one control motor unit (5; 55; 55'; 91) and connected to the throttle valve spindle (3; 53; 53'; 99). The second air passage chamber (63; 63'; 103) is connected to a back-up air control device (2, 3, 8, 9, 10, LHP1; 52, 55, 58, LHP2; 52', 55', 58', LHP3; 95, 102) by which enough air can be fed to the engine in the event of the breakdown of the control motor unit (5; 55; 55'; 91) to allow the vehicle movement.
摘要翻译： PCT No.PCT / EP95 / 02334 Sec。 371日期1996年9月13日 102（e）1996年9月13日PCT PCT 1996年6月16日PCT公布。 公开号WO95 / 35440 日期：1995年12月28日本发明涉及一种包括壳体（4; 54; 54'; 98）的节流阀装置，节气门心轴（3; 53; 53'; 99），节流阀 ; 52'; 100）可在第一空气通道室（62; 62'; 92）和第二这样的室（63; 63'; 103）之间的壳体（4; 54; 54'; 98）中移动， 车辆发动机保持在至少一个关闭位置（DS），怠速位置（MS）和全节气门位置（VS）以及具有至少一个控制电动机单元的控制单元（11; 61; 61'; 107） （5; 55; 55'; 91）并连接到节流阀心轴（3; 53; 53'; 99）。 第二空气通道室（63; 63'; 103）连接到备用空气控制装置（2,3,8,9,10，LHP1; 52,55,58，LHP2; 52'，55'， 58'，LHP3; 95,102），在控制马达单元（5; 55; 55'; 91）发生故障的情况下，可以向发动机供给足够的空气以允许车辆运动。
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公开(公告)号：US4154202A
公开(公告)日：1979-05-15
申请号：US800057
申请日：1977-05-24
摘要： A fuel quantity distributor in which a continuously operating suction pipe injection device is provided with differential pressure valves corresponding to the number of cylinders arranged about the metering unit. The valves maintain the pressure difference of the fuel constant by the metering unit. The valves have, furthermore, a diaphragm which contacts on one side, the delivered fuel. The other side of the diaphragm is exposed to a control pressure. Each of the differential pressure valves is equipped with one of these diaphragms in the form of a metal diaphragm in the plane of the vave seat. A centering ring with a crushing edge for a seal ring, is located in the distributor housing. The metal diaphragm is fixed relative to the valve seat by this centering ring through the use of a cup spring. The diaphragm, moreover, is located in a carrier within the distributor housing. The carrier has a two-part capsule with one half having a diaphragm support ring with inside diameter larger than that of the associated shell of the pressed-on second half of the capsule.
摘要翻译： 一种燃料量分配器，其中连续操作的吸入管注入装置设置有与围绕计量单元布置的气缸数对应的差压阀。 阀门通过计量单元维持燃料的压力差恒定。 此外，阀还具有与一侧接触的隔膜，所输送的燃料。 隔膜的另一侧暴露于控制压力。 每个差压阀在驾驶座的平面中配备有金属隔膜形式的这些隔膜中的一个。 位于分配器壳体中的具有用于密封环的破碎边缘的定心环。 通过使用杯形弹簧，金属隔膜通过该定心环相对于阀座固定。 此外，隔膜位于分配器外壳内的托架中。 载体具有两部分胶囊，其一半具有隔膜支撑环，其内径大于胶囊的按压后半部的相关外壳的直径。
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