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公开(公告)号：US4667638A
公开(公告)日：1987-05-26
申请号：US723897
申请日：1985-04-16
CPC分类号： F02M47/02 , F02M51/0671 , F02M59/107 , F02M59/42 , F02B1/04 , F02B3/06 , F02M2200/24
摘要： A fuel injection apparatus including a fuel injector, a high pressure feed pump, and an auxiliary pump. The high pressure feed pump supplies highly pressurized fuel to the fuel injector while the engine is driven. The auxiliary pump supplies highly pressurized fuel at least on starting of the engine. The auxiliary pump is driven independent of the engine while the high pressure feed pump is driven by the engine.
摘要翻译： 一种燃料喷射装置，包括燃料喷射器，高压进料泵和辅助泵。 当发动机被驱动时，高压给料泵向燃料喷射器提供高度加压的燃料。 至少在发动机起动时，辅助泵提供高压燃油。 辅助泵独立于发动机驱动，而高压给水泵由发动机驱动。
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2.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：US5284121A
公开(公告)日：1994-02-08
申请号：US917209
申请日：1992-07-22
CPC分类号： F02D41/0045 , F02M25/08 , F02M25/0836 , F02D41/0042
摘要： An internal combustion engine has an evaporated fuel purge system for directly feeding evaporated fuel of a fuel tank into an intake pipe of the engine during the engine is running. This system comprises a purge control valve for opening or closing a flow line which connects an upper space of the fuel tank with the intake pipe, a controller for controlling the operation of the valve, a throttle section formed in series with the purge control valve, and pressure and temperature sensors which are located on the upstream side of the throttle section for detecting a pressure and a temperature of the evaporated fuel. When a value detected by the pressure sensor exceeds a predetermined value of pressure for providing a critical pressure ratio at which a flow rate of the evaporated fuel at the throttle section substantially equals to a sonic velocity, the controller opens the purge control valve to cause a purged flow of the evaporated fuel whose flow rate is constant. Simultaneously, the controller calculates a purged flow rate of the evaporated fuel from the detected values of the pressure and temperature sensors and a time period during which the purge control valve is opened. On the basis of the calculated purged flow rate, a reduction correction is made to an amount of the fuel to be supplied to the engine in order to maintain an air-fuel ratio in the optimum condition. The calculated purged flow rate may be indicated.
摘要翻译： 内燃机具有蒸发的燃料净化系统，用于在发动机运行期间将燃料箱的蒸发燃料直接进入发动机的进气管。 该系统包括用于打开或关闭连接燃料箱的上部空间与进气管的流路的清洗控制阀，用于控制阀的操作的控制器，与清洗控制阀串联形成的节流部， 以及压力和温度传感器，其位于节流部分的上游侧，用于检测蒸发燃料的压力和温度。 当由压力传感器检测到的值超过预定的压力值，以提供临时压力比时，节流部分处的蒸发燃料的流量基本上等于声速，则控制器打开净化控制阀，使得 吹扫流量恒定的蒸发燃料。 同时，控制器根据压力和温度传感器的检测值以及清洗控制阀打开的时间段来计算蒸发燃料的净化流量。 基于所计算的净化流量，为了将空燃比维持在最佳状态，对要供给到发动机的燃料的量进行减小修正。 可以指示计算的净化流速。
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4.发明授权Pump for supplying pressurized fuel to fuel injector of internal combustion engine 失效用于向内燃机的燃料喷射器供应加压燃料的泵
公开(公告)号：US4649887A
公开(公告)日：1987-03-17
申请号：US689374
申请日：1985-01-07
CPC分类号： F02M59/18 , F02M47/027 , F02M59/105 , F02M63/0007 , F02B2075/027
摘要： A pump including a plunger slidably disposed in a pump body, a transmitting member connected to the plunger, a coil spring which urges the plunger, and a cam urging the plunger against the coil spring. The plunger defines a pump chamber in the pump body. The coil spring urges the plunger in a direction such that the plunger contracts the pump chamber. The cam rotates in synchronization with the rotation of the engine and engages with the transmitting member for part of the cycle of the rotation of the engine so that the plunger increases the volume of the pump chamber. The cam releases the plunger in the remaining cycle of the rotation of the engine to allow the coil spring to urge the plunger so that the plunger displaces in a direction to reduce the volume of the pump chamber.
摘要翻译： 一种泵，包括可滑动地设置在泵体中的柱塞，连接到柱塞的传动构件，推动柱塞的螺旋弹簧和将柱塞推向螺旋弹簧的凸轮。 柱塞在泵体中限定泵室。 螺旋弹簧沿着使柱塞收缩泵室的方向推动柱塞。 凸轮与发动机的旋转同步地旋转，并与发送构件接合，用于发动机旋转循环的一部分，使得柱塞增加泵室的容积。 凸轮在发动机旋转的剩余循环中释放柱塞，以允许螺旋弹簧推动柱塞，使得柱塞朝向减小泵室体积的方向移动。
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公开(公告)号：US4635849A
公开(公告)日：1987-01-13
申请号：US729144
申请日：1985-04-30
CPC分类号： F02M57/027 , B05B17/0607 , F02M51/04 , F02M61/047 , Y10T137/7862 , Y10T137/789
摘要： A piezoelectric fuel injector for use in fuel injection systems of spark-ignition engines is provided with a normally closed valve assembly in the form of a reed valve. The valve assembly includes a valve plate having one or more outlet ports having an overall cross-sectional flow area sufficient to ensure an unobstructed flow path therethrough. The valve assembly also includes a generally flat, thin, resilient closure member cooperating with the valve set of the valve plate. The pressure wave created in the fuel in the pumping chamber upon excitation of the piezoelectric actuator propagates into the outlet ports to directly reach the thin closure member, which readily resiliently yields to permit a desired amount of fuel to be injected into the engine cylinders. The fuel injector is particularly suitable to be operated by a high-frequency drive signal in order to ensure precise metering of fuel quantity over a wide range of engine operating conditions.
摘要翻译： 用于火花点火发动机的燃料喷射系统的压电式燃料喷射器设置有以簧片阀形式的常闭阀组件。 阀组件包括具有一个或多个出口端口的阀板，其具有足以确保穿过其中的不阻碍流动通道的整个横截面流动面积。 阀组件还包括与阀板的阀组配合的大致平坦，薄的弹性闭合件。 在压电致动器激励时，在泵送室中的燃料中产生的压力波传播到出口端口，以直接到达薄的封闭构件，其容易弹性地产生以允许将期望量的燃料喷射到发动机气缸中。 燃料喷射器特别适合于通过高频驱动信号操作，以便确保在大范围的发动机运行条件下精确计量燃料量。
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公开(公告)号：US4579283A
公开(公告)日：1986-04-01
申请号：US619193
申请日：1984-06-11
CPC分类号： F02M51/0603 , F02M2200/21 , F02M2200/703
摘要： A fuel injector for an internal combustion engine, the injector being actuated by a piezoelectric actuator. The piezoelectric actuator operates a piston, which changes the volume of a pump chamber formed between the piston and a nozzle needle. The nozzle needle moves up and down in response to a pressure in the pump chamber to open and close a port for injecting fuel. The piston is pressed toward the pump chamber by a fluidic force or a spring force and so on.
摘要翻译： 一种用于内燃机的燃料喷射器，所述喷射器由压电致动器致动。 压电致动器操作活塞，其改变形成在活塞和喷嘴针之间的泵室的容积。 喷嘴针响应于泵室中的压力而上下移动以打开和关闭用于喷射燃料的端口。 活塞通过流体力或弹簧力等压向泵室。
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公开(公告)号：US5398660A
公开(公告)日：1995-03-21
申请号：US71010
申请日：1993-06-02
申请人： Nobuhiko Koyama , Kazuto Maeda , Yuzi Ishiguro , Seiko Abe , Toshihiko Igashira , Yasuyuki Sakakibara , Shinichiro Kamohara
发明人： Nobuhiko Koyama , Kazuto Maeda , Yuzi Ishiguro , Seiko Abe , Toshihiko Igashira , Yasuyuki Sakakibara , Shinichiro Kamohara
IPC分类号： F02M25/08
CPC分类号： F02M25/0854
摘要： A fuel vapor purging system includes a container in which a set of divided chambers are formed by partition walls. Absorbent is disposed in the divided chambers. The divided chambers are sequentially connected to form a zigzag passage. Fuel vapor can enter the container from a fuel tank via a vapor line connecting the fuel tank and the container. In the container, an end of the vapor line faces the divided chamber which occupies an end of the set of the divided chambers. In the container, the fuel vapor is absorbed by the absorbent. Air can escape from the container via an opening in the container. The fuel vapor can be separated from the absorbent. The separated fuel vapor can be drawn into a suitable drawing device such as an engine air induction device via a purge line connecting the container and the drawing device. Fresh air can flow into the container via an air inlet provided on the container. Among the divided chambers, at least the divided chamber which occupies the end of the set of the divided chambers has a cross-sectional area equal to or smaller than 40 cm.sup.2.
摘要翻译： 燃料蒸气吹扫系统包括容器，其中一组分隔室由分隔壁形成。 吸收剂设置在分隔的室中。 分开的室依次连接形成之字形通道。 燃料蒸汽可以通过连接燃料箱和容器的蒸汽管线从燃料箱进入容器。 在容器中，蒸汽管线的一端面对分隔的室，该分隔室占据了分隔室的一端的一端。 在容器中，燃料蒸气被吸收剂吸收。 空气可以通过容器中的开口从容器逸出。 燃料蒸气可以与吸收剂分离。 分离出的燃料蒸汽可以通过连接容器和抽拉装置的清除管线被吸入合适的绘图装置，例如发动机空气感应装置。 新鲜空气可以通过设置在容器上的空气入口流入容器。 在分隔室中，至少分隔室的占据分隔室的一端的分隔室的截面积等于或小于40cm 2。
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8.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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公开(公告)号：US4546749A
公开(公告)日：1985-10-15
申请号：US532912
申请日：1983-09-16
CPC分类号： F02M59/366 , F02D41/408 , F02M41/125 , Y02T10/44
摘要： In a fuel injection apparatus for an internal combustion engine, the fuel injection is ended by a spill mechanism provided in a spill passage communicating with a pumping chamber. A piston opening and closing the spill passage is a free piston, and a solenoid valve to open and close a cylinder in which the free piston is disposed, is also provided. As the solenoid valve closes the cylinder, the free piston closes the spill passage, thus enabling the fuel feed to the fuel injection valve. When the solenoid valve opens the cylinder, the free piston opens the spill passage. Thus, the fuel flows through the spill passage to the fuel reservoir.
摘要翻译： 在用于内燃机的燃料喷射装置中，燃料喷射由设置在与泵送室连通的溢流通道中的溢流机构结束。 打开和关闭溢流通道的活塞是自由活塞，并且还提供了用于打开和关闭其中设置有自由活塞的气缸的电磁阀。 当电磁阀关闭气缸时，自由活塞关闭溢流通道，从而使得燃料供给到燃料喷射阀。 当电磁阀打开气缸时，自由活塞打开溢流通道。 因此，燃料流过溢流通道进入燃料储存器。
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公开(公告)号：US4529164A
公开(公告)日：1985-07-16
申请号：US470540
申请日：1983-02-28
CPC分类号： F02M63/0007 , F02M59/366 , F02M63/0026
摘要： A piezo-type valve with piezo-elements as a valve actuator. The piezo-elements are interposed by two freely movable pistons. A pressure chamber is formed on the outer side of one of the pistons to limit its outward movement. Thus, the substantial part of the expansion of the piezo-elements is transmitted to the other piston. The other piston is connected to a valve element. At least one flow port and a relief port are formed in the valve body. When voltage is applied to the piezo-elements, the at least one flow port and the relief port are communicated.
摘要翻译： 具有压电元件作为阀门执行器的压电式阀。 压电元件由两个可自由移动的活塞插入。 在一个活塞的外侧形成有压力室，以限制其向外运动。 因此，压电元件的大部分膨胀传递到另一个活塞。 另一个活塞连接到阀元件。 在阀体中形成至少一个流动口和释放口。 当电压施加到压电元件时，至少一个流动端口和释放端口被连通。
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