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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：US5363816A
公开(公告)日：1994-11-15
申请号：US184060
申请日：1994-01-21
CPC分类号： F01L9/02 , F01L2001/34446 , F02B3/06
摘要： A hydraulic valve drive device for intake/exhaust valves of an internal combustion engine using an oil pump similar to a distributor type injection pump. A plunger rotates and engages in reciprocating motion to pressurize hydraulic fluid taken into a pressure chamber and opens to discharge the same into a hydraulic cylinder of a specific intake/exhaust valve in register with the passage. The intake/exhaust valve maintains its valve lift to continue remaining open when the supply of the hydraulic fluid is stopped, but closes when the plunger rotates so that the passage is communicated with a relief channel and the relief valve opens.
摘要翻译： 一种使用类似于分配器型注射泵的油泵的内燃机的进气/排气阀的液压阀驱动装置。 柱塞旋转并接合往复运动，以将进入压力室的液压流体加压并打开以将其排放到与通道对准的特定进气/排气阀的液压缸中。 当液压油的供给停止时，进气/排气阀保持其气门升程继续保持打开，而当柱塞旋转时关闭，使得通道与释放通道连通并且安全阀打开。
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3.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：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：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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6.发明授权Apparatus for controlling electroexpansive actuator avoiding deterioration of polarization 失效用于控制电膨胀致动器避免极化恶化的装置
公开(公告)号：US4705003A
公开(公告)日：1987-11-10
申请号：US788485
申请日：1985-10-17
申请人： Yasuyuki Sakakibara , Seiko Abe , Masahiro Tomita , Hiroshi Yorita , Takeshi Tanaka , Toshihiko Igashira
发明人： Yasuyuki Sakakibara , Seiko Abe , Masahiro Tomita , Hiroshi Yorita , Takeshi Tanaka , Toshihiko Igashira
CPC分类号： F02M59/22 , F02D41/2096 , F02M41/123 , H02N2/06 , H02N2/062 , H02N2/065 , F02B3/06 , F02D2041/2003 , F02D2041/201 , F02D41/408 , F02M2200/21
摘要： In an apparatus for controlling an electroexpansive actuator, a high voltage is applied to the electroexpansive actuator at a non-load state after an expansion and contraction operation thereupon is completed.
摘要翻译： 在用于控制电膨胀致动器的装置中，在膨胀和收缩操作完成之后，在非负载状态下将高电压施加到电膨胀致动器。
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7.发明授权Control apparatus for electroexpansive actuator enabling variation of stroke 失效用于电动膨胀致动器的控制装置，能够改变行程
公开(公告)号：US4732129A
公开(公告)日：1988-03-22
申请号：US850696
申请日：1986-04-11
CPC分类号： F02M47/06 , F02D41/2096 , F02B1/04 , F02B2075/027 , F02D2041/2003 , F02D2041/2006 , F02D2041/201 , F02D2041/2013 , F02D2041/2075 , F02M2200/21 , H02N2/06 , H02N2/067
摘要： A color apparatus includes an electroexpansive actuator, a unit for supplying a charge to the electroexpansive actuator, and a unit for controlling an amount of charge discharged from the electroexpansive actuator, and a stroke of the electroexpansive actuator is controlled in accordance with the amount of charge discharged therefrom. When such an electroexpansive actuator is applied to a control apparatus for a fuel injection valve, a fuel injection amount per ON/OFF operation of the fuel injection valve or a fuel injection rate can be freely controlled.
摘要翻译： 彩色装置包括电膨胀致动器，用于向电膨胀致动器提供电荷的单元和用于控制从电膨胀致动器排出的电荷量的单元，并且电膨胀致动器的行程根据电荷量来控制 从中排出。 当这种电膨胀式致动器被施加到用于燃料喷射阀的控制装置时，可以自由地控制燃料喷射阀的每次ON / OFF操作的燃料喷射量或燃料喷射速率。
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8.发明授权Diesel engine fuel injection system with a rate-of-injection control arrangement 失效柴油发动机燃油喷射系统具有喷射速率控制装置
公开(公告)号：US4730585A
公开(公告)日：1988-03-15
申请号：US878772
申请日：1986-06-25
CPC分类号： F02D41/403 , F02D41/2096 , F02M41/126 , F02M59/22 , H02N2/06 , H02N2/067 , F02B3/06 , F02D41/402 , F02D41/408 , Y02T10/44
摘要： A fuel injection system comprising a fuel injection pump, at least one fuel injection nozzle connected thereto, and a control device for varying the rate of injection of the system according to varying engine parameters. The control device has a variable volume chamber, the volume of which is varied by a piston located by a piezoelectric actuator. The variable volume chamber and a pumping chamber of the pump is intermittently connected by a passage which is specifically designed in such a manner that the fluid communication between the chambers, during the delivery stroke of a pump plunger, is provided only for an initial stage of the delivery stroke. A rate of injection is controlled in the initial stage to perform a pilot injection. In the subsequent stage, in which there is no need for rate-of-injection control, the variable volume chamber is isolated from the pumping chamber in order to relieve the piezoelectric actuator from an excessively high fuel pressure that would cause degradation of the piezoelectric elements.
摘要翻译： 一种燃料喷射系统，包括燃料喷射泵，连接到其上的至少一个燃料喷射喷嘴和用于根据变化的发动机参数改变系统的喷射速率的控制装置。 控制装置具有可变容积室，其体积由通过压电致动器定位的活塞变化。 泵的可变容积室和泵送室通过通道进行间歇地连接，该通道被特别设计成使得在泵柱塞的输送冲程期间，腔室之间的流体连通仅在初始阶段 输送中风。 在初始阶段控制喷射速率以进行引燃喷射。 在不需要喷射速率控制的后续阶段中，可变容积室与泵送室隔离，以便使压电致动器免于过高的燃料压力，这将导致压电元件的劣化 。
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公开(公告)号：US4728074A
公开(公告)日：1988-03-01
申请号：US925251
申请日：1986-10-31
IPC分类号： F02M51/06 , F02D41/20 , F02D41/24 , F02D41/40 , F02M45/06 , F02M47/02 , F02M51/04 , F02M63/00 , F02M63/04 , F16K21/12 , H02N2/02
CPC分类号： F02D41/2096 , F02D41/2406 , F02D41/40 , F02M45/06 , F02M51/04 , F02M63/04 , F02M2200/21 , Y02T10/44
摘要： A piezoelectric flow control valve comprising a slidable closure member (22) for controlling a flow of fluid through a fluid passage (42) between a fluid inlet (40) and a fluid outlet (32). The closure member (22) is biased toward a normally closed position by a plunger (70) responsive to a hydraulic pressure in a pressure chamber (78) which is in fluid communication with the fluid inlet (40) through a restriction and with a pumping chamber (96) of a piezoelectric pump (72). In order to prevent fluid leakage under situations wherein the fluid pressure at the fluid inlet (40) is not high enough to ensure closure of the member (22), the present invention provides spring biased pressure mechanism (106) for biasing the closure member (22) toward the normally closed position and override means (130) for overriding the pressure mechanism (106) in response to a predetermined pressure at the fluid inlet (40).
摘要翻译： 一种压电流量控制阀，包括用于控制流体流过流体入口（40）和流体出口（32）之间的流体通道（42）的可滑动闭合构件（22）。 响应于压力室（78）中的液压，封闭构件（22）通过柱塞（70）被朝向常闭位置偏置，压力室（78）通过限制和泵送与流体入口（40）流体连通 压电泵（72）的室（96）。 为了在流体入口（40）处的流体压力不足以确保构件（22）的闭合的情况下防止流体泄漏，本发明提供了用于偏压闭合构件的弹簧偏置压力机构（106） 22）朝向常闭位置，并且用于响应于流体入口（40）处的预定压力来超压压力机构（106）的超驰装置（130）。
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公开(公告)号：US4603671A
公开(公告)日：1986-08-05
申请号：US639433
申请日：1984-08-10
CPC分类号： F02M59/105 , F02M47/027 , F02M47/043
摘要： An electronically controllable, ultra-high pressure fuel injector comprises a differential pressure type injection nozzle which is opened and closed by an actuating element operated by a hydraulic power cylinder including a piston received in a working chamber. Working fuel to the working chamber of the power cylinder is ON/OFF controlled by an electronically controllable solenoid valve which when energized releases the pressure in the working chamber to open the injection nozzle. In order to ensure that the power cylinder is controlled by a compact, high response solenoid valve, the construction of the power cylinder and the injection nozzle is such that the force applied to the power cylinder piston by the working fuel pressure in the working chamber is substantially greater than the force applied to the actuating element by the fuel pressure in the pressure chamber in the injection nozzle or the fuel pressure in the passage for supplying the working fuel. Preferably, the fuel injector is provided with an injection rate control arrangement such as a flow control arrangement for limiting the flow rate of working fuel as it enters the working chamber and for increasing the flow rate of the working fuel as it is released therefrom, so that the rate of injection increases gradually at the outset of fuel injection but rapidly drops at the completion of the injection.
摘要翻译： 电子可控的超高压燃料喷射器包括压差式喷射喷嘴，其通过由包括接收在工作室中的活塞的液压动力油缸操作的致动元件而打开和关闭。 通过电子可控电磁阀控制动力缸工作室的工作燃油，当通电时释放工作室中的压力以打开喷嘴。 为了确保动力缸由紧凑，高响应的电磁阀控制，动力缸和注射喷嘴的结构使得通过工作室中的工作燃料压力施加到动力缸活塞的力是 明显大于通过喷射喷嘴中的压力室中的燃料压力或用于供应工作燃料的通道中的燃料压力施加到致动元件的力。 优选地，燃料喷射器设置有喷射速率控制装置，例如用于限制工作燃料进入工作室的流量的流量控制装置，并且用于当工作燃料从其释放时增加工作燃料的流量，因此 注射速率在燃料喷射开始时逐渐增加，但在注射完成时迅速下降。
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