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1.发明授权Fuel injection timing control apparatus for a fuel injection pump and control method for the same 失效燃料喷射泵的燃料喷射正时控制装置及其控制方法
公开(公告)号：US5697347A
公开(公告)日：1997-12-16
申请号：US719204
申请日：1996-09-25
CPC分类号： F02D41/401 , F02B3/06 , F02D2200/0406 , F02D41/408 , Y02T10/44
摘要： A target fuel injection timing of the fuel injection pump is calculated based on the operating conditions of a diesel engine (Steps 102; 302; 602), while an actual fuel injection timing is calculated based on crank angle signals (Steps 103; 303: 603). Then, a fuel injection timing error (Terr) is obtained based on a difference between the target fuel injection timing and the actual fuel injection timing (Steps 104; 304; 604). To adjust the actual fuel injection timing based on the error (Terr), a rotational position of a roller ring (10) is controlled through a timer piston (21) slidable and housed in a timer device (28) by a hydraulic pressure control valve (27) in response to a pulse actuating signal having a controllable duty ratio (DFIN). The pulse actuating signal having the controlled duty ratio is generated at a predetermined pulse output timing (Steps 208; 406; 706), so that the fuel injection caused by a force feeding stroke of the fuel injection pump is not overlapped with an actual valve-open duration of hydraulic pressure control valve (27) varying depending on the engine speed (N), thereby completely locking the timer piston (21) during the fuel injection.
摘要翻译： 基于柴油发动机的运行条件，计算出燃料喷射泵的目标燃料喷射正时（步骤102; 302; 602），同时基于曲柄角信号计算实际燃料喷射正时（步骤103; 303：603 ）。 然后，基于目标燃料喷射正时与实际燃料喷射正时之间的差，获得燃料喷射正时误差（Terr）（步骤104; 304; 604）。 为了基于误差（Terr）来调节实际的燃料喷射正时，通过一个定时器活塞（21）来控制滚子环（10）的旋转位置，定时器活塞（21）通过液压控制阀可滑动并容纳在定时装置（28）中 （27）响应具有可控占空比（DFIN）的脉冲致动信号。 具有受控占空比的脉冲致动信号在预定的脉冲输出定时产生（步骤208; 406; 706），使得由燃料喷射泵的力供给冲程引起的燃料喷射不与实际的阀 - 液压控制阀（27）的打开持续时间根据发动机转速（N）而变化，从而在燃油喷射期间完全锁定定时器活塞（21）。
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公开(公告)号：US5421710A
公开(公告)日：1995-06-06
申请号：US130505
申请日：1993-10-01
申请人： Hiroshi Yorita , Toshihiko Igashira , Yasuyuki Sakakibara , Kou Otsuka , Shigeiku Enomoto , Moriyasu Gotoh
发明人： Hiroshi Yorita , Toshihiko Igashira , Yasuyuki Sakakibara , Kou Otsuka , Shigeiku Enomoto , Moriyasu Gotoh
CPC分类号： F02M59/14 , F02M59/105 , F02B1/04
摘要： A fuel injection apparatus which, when raising fuel of a low viscosity and a low lubricating ability such as gasoline or methanol to a high pressure by a fuel injection pump and injecting it into a combustion chamber of an internal combustion engine etc., prevents the lubricating oil for the fuel injection pump from being diluted by this fuel by pressurizing a separate working oil with a viscosity and lubricating ability higher than the fuel by the fuel injection pump and raising the pressure of the fuel by a diaphragm apparatus by the pressure of the high pressure working oil and thereby supplies the same to the fuel injector.
摘要翻译： 一种燃料喷射装置，当通过燃料喷射泵将低粘度和低润滑能力如汽油或甲醇提高至高压并将其注入内燃机等的燃烧室时，防止润滑 燃料喷射泵的油被该燃料稀释，通过对具有高于燃料喷射泵的燃料的粘度和润滑能力的分离的工作油加压，并通过隔膜装置通过高压的压力提高燃料的压力 并且由此将其提供给燃料喷射器。
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公开(公告)号：US5655502A
公开(公告)日：1997-08-12
申请号：US592860
申请日：1996-01-24
CPC分类号： F02M41/128 , F02D1/183 , F02B3/06 , F02D2001/186
摘要： An injection timing control device for a fuel injection pump includes an oil-pressure control valve for controllably changing the fuel injection timing of the fuel injection pump. The oil-pressure control valve includes a valve cylinder having a valve seat. The valve seat has a first truncated-conical surface. The oil-pressure control valve further includes a valve needle slidably received in the valve cylinder and movable by a control unit. The valve needle has a second truncated-conical surface for engaging with the first truncated-conical surface to close the oil-pressure control valve and disengaging from the first truncated-conical surface to open the oil-pressure control valve. The first and second truncated-conical surfaces, when engaged, form a circular seal line on which the first and second truncated-conical surfaces abut each other. The circular seal line has a diameter which is substantially the same as a diameter of the valve needle. In the oil-pressure control valve, a fuel pressure applied to the valve needle at one axial end thereof is introduced to an opposite axial end thereof for equalizing fuel pressures applied to the valve needle at the opposite ends thereof.
摘要翻译： 用于燃料喷射泵的喷射定时控制装置包括用于可控地改变燃料喷射泵的燃料喷射正时的油压控制阀。 油压控制阀包括具有阀座的阀筒。 阀座具有第一截锥形表面。 油压控制阀还包括可滑动地容纳在气缸中并由控制单元移动的阀针。 阀针具有用于与第一截锥形表面接合的第二截锥形表面，以关闭油压控制阀并与第一截锥形表面脱离以打开油压控制阀。 第一和第二截锥形表面在接合时形成圆形密封线，第一和第二截锥形表面彼此邻接。 圆形密封线具有与阀针的直径基本相同的直径。 在油压控制阀中，在其一个轴向端施加到阀针的燃料压力被引入到其相对的轴向端部，以使在其相对端处施加到阀针的燃料压力相等。
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公开(公告)号：US5939811A
公开(公告)日：1999-08-17
申请号：US815453
申请日：1997-03-11
申请人： Shigeiku Enomoto , Moriyasu Gotoh , Koji Takasu
发明人： Shigeiku Enomoto , Moriyasu Gotoh , Koji Takasu
CPC分类号： H01F7/081 , H01F7/1638
摘要： An electromagnetic device includes a solenoid stator comprised of a plurality of magnetic plates stacked spirally and regulated to prevent displacement. The stator is constructed by spirally disposing around its central axis a plurality of magnetic plates each having a uniform thickness and being bent in a curved shape. A support body of the device is so assembled to the stator as to abut its bottom face and a through hole. The support body has a disk part having an outer diameter generally corresponding to that of the stator and a cylindrical part extending upwardly from the central part of the disk part. The top end part of the cylindrical part is fixedly joined to the stator by laser welding. A push rod coupled with an armature is disposed slidably in a hole of the support body. The bottom face of a cap housing abuts the peripheral part of the top face of the stator to press the peripheral part from the upperside.
摘要翻译： 一种电磁装置包括一螺线管定子，该螺线管定子包括多个螺旋状并被调节以防止位移的磁性板。 定子通过围绕其中心轴线螺旋地设置，每个磁性板均具有均匀的厚度并弯曲成弯曲形状。 该装置的支撑体如此组装到定子上以抵靠其底面和通孔。 支撑体具有大体上对应于定子的外径的圆盘部分和从圆盘部分的中心部分向上延伸的圆柱形部分。 圆柱形部件的顶端部分通过激光焊接固定在定子上。 与电枢耦合的推杆可滑动地设置在支撑体的孔中。 盖壳的底面与定子的顶面的周边部分抵接，以从上侧按压周边部分。
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公开(公告)号：US5647327A
公开(公告)日：1997-07-15
申请号：US628450
申请日：1996-04-05
申请人： Shigeiku Enomoto , Moriyasu Gotoh
发明人： Shigeiku Enomoto , Moriyasu Gotoh
CPC分类号： F02M41/128 , F02D1/183
摘要： An injection timing control device for a fuel injection pump includes a timer cylinder and a timer piston slidably received in the timer cylinder to define a high-pressure chamber and a low-pressure chamber at opposite axial ends thereof. The high-pressure chamber communicates with a high pressure side, while the low-pressure chamber communicates with a low pressure side and is provided therein with a spring for biasing the timer piston toward the high-pressure chamber. A servo valve having a spool is further provided. Communication between the high-pressure and low-pressure chambers is allowed or prohibited depending on movement of the spool of the servo valve. When the communication is allowed, a fuel pressure in the high-pressure chamber is released into the low-pressure chamber so that the timer piston moves toward the high-pressure chamber due to a biasing force of the spring. This movement of the timer piston is transmitted to a roller ring to retard a fuel injection timing. On the other hand, when the communication is prohibited, the piston moves in the opposite direction so that the fuel injection timing is advanced.
摘要翻译： 一种用于燃料喷射泵的喷射定时控制装置，包括定时器气缸和定时器活塞，其可滑动地容纳在定时器气缸中，以在其相对的轴向端限定高压室和低压室。 高压室与高压侧连通，而低压室与低压侧连通，并且在其中设置有用于将定时器活塞偏压向高压室的弹簧。 还设有具有线轴的伺服阀。 根据伺服阀的阀芯的移动，允许或禁止高压和低压室之间的通信。 当允许通信时，高压室中的燃料压力被释放到低压室中，使得定时器活塞由于弹簧的偏置力而向高压室移动。 定时器活塞的这种移动被传递到滚子环以延迟燃料喷射正时。 另一方面，当通信被禁止时，活塞沿相反方向移动，使得燃料喷射定时提前。
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公开(公告)号：US5503364A
公开(公告)日：1996-04-02
申请号：US141970
申请日：1993-10-28
CPC分类号： F02M59/366 , F02M41/125 , F02M59/466
摘要： A solenoid valve provided with a relief passage by means of which a high-pressure side and a low-pressure side communicate with each other for use, for example, in combination with a fuel injection pump, comprises a valve element capable of being advanced into and retracted from the relief passage, a first compression spring for biasing the valve element in the retracting direction, an armature attached to the rear end of the valve element, an electromagnet for attracting the armature to disconnect the high-pressure side and the low-pressure side from each other by advancing the valve element into the relief passage against the resilience of the first compression coil spring, and a second compression coil spring for holding the armature in a predetermined position close to the electromagnet against the biasing force of the first compression coil spring when the electromagnet is demagnetized.
摘要翻译： 一种电磁阀，其具有释放通道，高压侧和低压侧相互连通，例如与燃料喷射泵组合使用，包括能够前进到 并且从所述释放通道缩回用于沿所述回缩方向偏压所述阀元件的第一压缩弹簧，附接到所述阀元件的后端的电枢，用于吸引所述电枢以使所述高压侧和所述低压侧断开的电磁体， 通过克服第一压缩螺旋弹簧的弹力使阀元件进入释放通道彼此相压;以及第二压缩螺旋弹簧，用于克服第一压缩的偏压力将衔铁保持在靠近电磁体的预定位置 当电磁铁退磁时螺旋弹簧。
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公开(公告)号：US06669166B2
公开(公告)日：2003-12-30
申请号：US09903773
申请日：2001-07-13
IPC分类号： F16K3102
CPC分类号： F16K31/0668 , F02M59/466 , F02M63/0225 , F04B1/0404 , F04B49/22 , F16K31/0648
摘要： In an electromagnetic valve, a composite valve case has a cylindrical hollow and a composite valve body formed in spool shape is slidably housed in the cylindrical hollow. The composite valve body has not only an inherent valve function for changing fluid path area according to its movement in the cylindrical hollow but also an armature function for constituting a magnetic circuit. The composite valve case has not only a cylinder function for allowing the valve body to slidably move but also a stator function for constituting a magnetic circuit. The composite valve body and the composite valve case are made of soft magnetic material and are provided at their surfaces with thin hardened layers formed by surface or heat treatment.
摘要翻译： 在电磁阀中，复合阀壳体具有圆柱形中空部，并且以筒状形成的复合阀体可滑动地容纳在圆筒形中空部中。 复合阀体不仅具有根据其在圆柱形中空部中的运动而改变流体路径面积的固有阀功能，还具有用于构成磁路的电枢功能。 复合阀壳体不仅具有允许阀体滑动移动的气缸功能，而且具有构成磁路的定子功能。 复合阀体和复合阀壳由软磁材料制成，并在其表面设置有通过表面或热处理形成的薄的硬化层。
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公开(公告)号：US06752374B2
公开(公告)日：2004-06-22
申请号：US10197889
申请日：2002-07-19
IPC分类号： F16K3102
CPC分类号： F16K31/0668 , B60T8/3665 , F02M59/08 , F02M59/366 , F02M63/004 , F16K27/041 , F16K27/048
摘要： In an electromagnetic valve, after a solenoid assembly, in which a housing surrounds an outer circumference of a solenoid composed of a coil and a bobbin and a resin connector is formed on the housing by injection molding, and a valve body assembly, in which a valve body member is slidably housed to move reciprocatingly in a valve case cylindrical hollow of a valve case member, are independently sub assembled, the valve body assembly is integrated with the solenoid assembly in such a manner that the valve case member is axially inserted into a cylindrical hollow of the bobbin and, then, an axial end of the housing is fixed to an outer circumference of the valve case member by crimping. Accordingly, if a malfunction of a component part occurs during manufacturing processes, less number of component parts are rejected as failure.
摘要翻译： 在电磁阀中，在螺线管组件之后，通过注射成型在壳体上形成壳体围绕由线圈和筒管构成的螺线管的外周和树脂连接器的阀体组件，其中， 阀体构件可滑动地容纳在阀壳体的阀壳体圆柱形中空件中往复运动，独立地分组装，阀体组件与螺线管组件形成一体，使得阀壳构件轴向插入 然后，通过卷边将壳体的轴向端部固定在阀壳部件的外周。 因此，如果在制造过程中发生部件的故障，则成分数量少的情况被拒绝。
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公开(公告)号：US06719224B2
公开(公告)日：2004-04-13
申请号：US10321429
申请日：2002-12-18
IPC分类号： B05B130
CPC分类号： F02M21/0263 , B60H1/00271 , B60H1/3205 , B60H1/3217 , F02D19/024 , F02M21/0212 , F02M21/0245 , F02M21/0254 , F02M51/061 , F02M51/0653 , F02M51/0671 , F02M53/00 , F02M55/002 , F02M2200/304 , F25B9/002 , F25B19/00 , Y02T10/32
摘要： A fuel supply system has a pump, a common rail, and injectors. Pressurized fuel is stored in the common rail. The common rail distributes the fuel to the injectors. A liquid fuel and a liquefied gas fuel such as dimethyl ether and a liquefied petroleum gas may be used as a fuel. In each injector, a valve element is actuated directly by an electromagnetic actuator. The injector has a low pressure chamber for decreasing a biasing force which acts on the valve element in a valve closing direction. The valve element can be divided for replacement. The injector has means for suppressing the bounce of the valve element. A hydraulic unit which utilizes the fuel suppresses the bounce of the valve element. The fuel supply system is connected to a refrigerating cycle. The fuel leaking from the fuel supply system is cooled and again liquefied by the refrigerating cycle.
摘要翻译： 燃料供应系统具有泵，共轨和喷射器。 加压燃料储存在共轨上。 共轨将燃油分配给喷射器。 可以使用液体燃料和液化气体燃料如二甲醚和液化石油气作为燃料。 在每个喷射器中，阀元件由电磁致动器直接致动。 喷射器具有用于减小沿阀关闭方向作用在阀元件上的偏压力的低压室。 阀元件可以分开更换。 喷射器具有用于抑制阀元件反弹的装置。 利用燃料的液压单元抑制阀元件的反弹。 燃料供应系统连接到制冷循环。 从燃料供应系统泄漏的燃料被冷却并再次通过制冷循环液化。
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公开(公告)号：US6016790A
公开(公告)日：2000-01-25
申请号：US888238
申请日：1997-07-03
申请人： Tadaaki Makino , Shigeiku Enomoto
发明人： Tadaaki Makino , Shigeiku Enomoto
IPC分类号： F02B3/06 , F02D41/38 , F02M59/06 , F02M59/10 , F02M59/36 , F02M59/46 , F02M63/02 , F04B9/04 , F04B49/22 , F02M37/04
CPC分类号： F04B49/225 , F02M59/06 , F02M59/366 , F02M59/367 , F02M59/46 , F02M59/466 , F02M63/0017 , F02M63/0225 , F04B9/042 , F02B3/06 , F02D41/3809
摘要： A high-pressure pump for use in a fuel injection system for diesel engines is provided which includes a plunger slidably disposed within a chamber formed in a pump housing to define a pressure chamber whose volume is changed according to sliding movement of the plunger, a check valve disposed within a fluid inlet line extending from an inlet port to the pressure chamber, and a solenoid valve disposed within the fluid inlet line upstream of the check valve. The check valve establishes fluid communication between the inlet port and the pressure chamber during a fluid suction operation wherein the fluid is sucked into the pressure chamber, while blocking the fluid communication between the inlet port and the pressure chamber during a fluid feeding operation wherein the fluid sucked into the pressure chamber is pressurized and discharged from an outlet port. The solenoid valve controls a flow rate of the fluid sucked into the pressure chamber through the check valve. This pump structure is compact in size, consumes less electric power, and is capable of feeding a desired quantity of fuel into the engine accurately.
摘要翻译： 提供一种用于柴油发动机的燃料喷射系统的高压泵，其包括可滑动地设置在形成在泵壳体中的室内的柱塞，以限定其体积根据柱塞的滑动运动而改变的压力室， 设置在从入口延伸到压力室的流体入口管线内的阀，以及设置在止回阀上游的流体入口管线内的电磁阀。 止回阀在流体抽吸操作期间在入口和压力室之间建立流体连通，其中流体被吸入压力室，同时在流体供给操作期间阻挡入口端口和压力室之间的流体连通，其中流体 吸入压力室的压力从出口被加压和排出。 电磁阀控制通过止回阀吸入压力室的流体的流量。 该泵结构尺寸紧凑，消耗较少的电力，并且能够精确地向发动机供给所需量的燃料。
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