公开(公告)号：US6142121A

公开(公告)日：2000-11-07

申请号：US155573

申请日：1998-10-01

申请人： Terukazu Nishimura ,  Tsutomu Fuseya ,  Shigehisa Takase

发明人： Terukazu Nishimura ,  Tsutomu Fuseya ,  Shigehisa Takase

IPC分类号： F02M47/02 ,  F02D41/00 ,  F02D41/04 ,  F02D41/34 ,  F02D41/38 ,  F02D41/40 ,  F02M51/00 ,  F02M55/02 ,  F02M63/00 ,  F02M41/00 ,  F02M7/00

CPC分类号： F02D41/008 ,  F02D41/2467 ,  F02D41/3809 ,  F02M63/0225 ,  F02D2041/389 ,  F02D2200/0602 ,  F02D2200/703 ,  F02D2250/31 ,  F02D41/2477 ,  F02D41/3845 ,  F02D41/401

摘要： In the fuel injection method and device for engines, information obtained from the differential value of the common rail pressure is used to correct the parameters of the command pulses to the flow control valve and the solenoid valve of each injector and thereby limit deviations of the fuel injection characteristic of the injector from the target injection characteristic. From the curves of the differential values R of the common rail pressure Pc, the actual fuel injection parameters for the injectors-injection start timing Tis, gross injection amount Qt, initial injection amount Qe and maximum injection rate Rmax-are obtained. The command pulse output timing (PTpf, PTif) for the flow control valve, which controls the amount of fuel delivered from the fuel pump, and for the solenoid valve of each injector and the gross or initial command pulse width (PWit, PWief) for the solenoid valves of each injector are controlled so that the above parameters agree with the target injection characteristic determined from the corresponding operating states of the engine.

摘要翻译： PCT No.PCT / JP98 / 00507 Sec。 371日期：1998年10月1日 102（e）1998年10月1日日期PCT提交1998年2月6日PCT公布。 公开号WO98 / 35150 PCT 日期1998年8月13日在用于发动机的燃料喷射方法和装置中，使用从共轨压力的差分值获得的信息来校正每个喷射器的流量控制阀和电磁阀的指令脉冲的参数，从而 喷射器的燃料喷射特性与目标喷射特性的极限偏差。 根据共轨压力Pc的差分值R的曲线，求出喷射器喷射开始时刻Tis，总喷射量Qt，初始喷射量Qe和最大喷射率Rmax的实际燃料喷射参数。 用于控制从燃料泵输送的燃料量以及每个喷射器的电磁阀的流量控制阀的指令脉冲输出定时（PTpf，PTif）以及大体或初始指令脉冲宽度（PWit，PWief）用于 控制每个喷射器的电磁阀，使得上述参数与从发动机的相应操作状态确定的目标喷射特性一致。

公开(公告)号：US06793161B1

公开(公告)日：2004-09-21

申请号：US10203434

申请日：2002-08-05

申请人： Mahoro Fujita ,  Hermann Breitbach ,  Terukazu Nishimura ,  Akihiko Minato ,  Shigehisa Takase

发明人： Mahoro Fujita ,  Hermann Breitbach ,  Terukazu Nishimura ,  Akihiko Minato ,  Shigehisa Takase

IPC分类号： F02M5100

CPC分类号： F02M47/027 ,  F02M47/02 ,  F02M47/022 ,  F02M55/04 ,  F02M2200/304

摘要： An object of the present invention is to obtain a consistently stable needle lift damping effect in an injector 8b for fuel injection. In an injector 8b that relieves fuel pressure inside a pressure control chamber 37 and lifts a needle valve 36, there are provided a damper member 62 that is slidably mounted to the needle valve 36, a damping chamber 63 formed between the damper member 62 and the needle valve 36, a leak passage 64 for extracting and leaking out the fuel in the damping chamber 63, and a stopper member 41 to restrict the lift position of the damper member 62. Damping of the lift of the needle valve 36 is carried out by extracting and leaking out the fuel in the damping chamber 63 through the leak passage 64. The needle valve 36 functions as a guide for the damper member 62, and prevents vibration of the damper member 62, allowing a consistently stable damping effect to be obtained.

摘要翻译： 本发明的目的是获得用于燃料喷射的喷射器8b中一贯稳定的针提升阻尼效果。 在释放压力控制室37内的燃料压力并提升针阀36的喷射器8b中设置有可滑动地安装在针阀36上的阻尼室62，形成在阻尼器构件62和 针阀36，用于提取和泄漏阻尼室63中的燃料的泄漏通道64以及限制阻尼器构件62的升降位置的止动构件41.针阀36的升程阻尼通过 通过泄漏通道64将阻尼室63内的燃料抽出和泄漏。针阀36用作阻尼器构件62的引导件，并且防止阻尼构件62的振动，从而获得一致稳定的阻尼效果。

公开(公告)号：US20090050717A1

公开(公告)日：2009-02-26

申请号：US12279885

申请日：2006-12-08

申请人： Shigehisa Takase

发明人： Shigehisa Takase

IPC分类号： F02M61/10

CPC分类号： F02M61/1886

摘要： To provide an injector nozzle that enables the increase in the maximum injection rate of fuel. An injector nozzle 1 has a sac portion 21 for storing a fuel which is formed in a distal end portion of a nozzle body 2 and in which injection holes 11 for injecting the stored fuel are formed; and, a seat portion 22 which is formed at a proximal end side of the sac portion 21 and in which a needle valve 3 for closing the sac portion 21 can be seated. The needle 3 valve has a distal end portion which is tapered towards the distal side and which is formed by cutting off a portion located on the distal side beyond an abutment position where the seat portion can be contacted.

摘要翻译： 提供能够增加燃料的最大喷射速率的喷射器喷嘴。 喷射器喷嘴1具有用于存储燃料的囊部21，其形成在喷嘴体2的前端部，并且形成有用于喷射储存燃料的喷射孔11; 以及座部22，其形成在囊部21的基端侧，并且用于封闭囊部21的针阀3能够就座。 针3阀具有朝向远端侧渐缩的远端部分，并且通过将位于远端侧的部分切除超过座部可接触的邻接位置而形成。

公开(公告)号：US6155500A

公开(公告)日：2000-12-05

申请号：US340163

申请日：1999-06-28

申请人： Shigehisa Takase

发明人： Shigehisa Takase

IPC分类号： F02M47/00 ,  F02D41/20 ,  F02M47/02 ,  F02M51/06 ,  F02M59/46 ,  F02M63/00 ,  H01L41/04 ,  H02N2/00 ,  F02M39/00 ,  F02M41/00 ,  F02M43/00 ,  F02M55/00

CPC分类号： H02N2/06 ,  F02D41/2096 ,  F02M47/027 ,  F02M63/0026 ,  F02M63/0035 ,  F02M2200/30

摘要： A piezoelectric actuator is disclosed, wherein a superposing pulse is generated just after a command pulse falls to thereby reduce oscillations of displacement in piezoelectric elements. In the piezoelectric actuator, an exciting pulse having a preselected pulse width is applied across terminals of the piezoelectric elements to cause strains in dimension for the piezoelectric elements. A pulse is superposed such that it is superposed at a timing a at which the exciting pulse is turned on, and then the exciting pulse is once turned off for a minute length of time, or an interval between b and b', and turned on again at c. The pulse to be superposed is supplied with a timing less than one-fourth a period of an oscillation of the piezoelectric elements. The piezoelectric actuator is effective to prevent the resonance phenomenon and preferably employed for the fuel-injection apparatus.

摘要翻译： 公开了一种压电致动器，其中在命令脉冲下降之后产生叠加脉冲，从而减少压电元件中的位移振荡。 在压电致动器中，在压电元件的端子上施加具有预选脉冲宽度的激励脉冲，以使得压电元件的尺寸变大。 将脉冲叠加在激励脉冲导通的定时a叠加，然后激励脉冲一度关闭一段时间，或者b和b'之间的间隔，并且导通 再次在c。 要叠加的脉冲被提供有小于压电元件的振荡周期的四分之一的定时。 压电致动器有效地防止共振现象，并且优选地用于燃料喷射装置。

公开(公告)号：US06250285B1

公开(公告)日：2001-06-26

申请号：US09340162

申请日：1999-06-28

申请人： Shigehisa Takase

发明人： Shigehisa Takase

IPC分类号： F02M4100

CPC分类号： F02D41/221 ,  F02D41/2496 ,  F02D41/3809 ,  F02D2041/225

摘要： Disclosed a common-rail, fuel-injection system in which an actual quantity of fuel injected is found in consideration for a quantity of dynamic fuel leakage, thereby making it possible to inject a desired quantity of fuel per cycle in accordance with the engine operating conditions. A quantity of fuel to be supplied from the common rail is found from a first mapped data defined previously, in conformity with a common-rail pressure Pch and a difference &Dgr;Pc in pressure taking place between the common-rail pressures just before and after the fuel injection. Moreover, a quantity of dynamic fuel leakage is found from a second mapped data defined previously, in conformity with a common-rail pressure Pch just before the fuel injection and a command-pulse width for controlling the fuel injection. The actual quantity of fuel injected is found by subtracting the quantity of dynamic fuel leakage from the quantity of fuel supplied and the fuel injection is controlled so as to correct the consequent actual quantity of fuel injected to a desired quantity of fuel injected.

摘要翻译： 公开了一种共轨燃料喷射系统，其中考虑到一定量的动态燃料泄漏而发现实际的燃料量，从而可以根据发动机工作条件向每个循环喷射所需量的燃料 。 根据共同导轨压力Pch和燃料前后的共轨压力之间的压力发生压力的差异，可以从先前定义的第一映射数据中找到从共轨供应的燃料量。 注射。 此外，根据刚刚在燃料喷射之前的共轨压力Pch和用于控制燃料喷射的命令脉冲宽度，先前定义的第二映射数据找到一定量的动态燃料泄漏。 通过从所供给的燃料量中减去动态燃料泄漏量并控制燃料喷射来实现燃料喷射的实际量，从而将注入的燃料的实际燃料量校正为期望喷射量的燃料。

公开(公告)号：US07063054B2

公开(公告)日：2006-06-20

申请号：US10473256

申请日：2002-03-29

申请人： Akihiko Minato ,  Shigehisa Takase

发明人： Akihiko Minato ,  Shigehisa Takase

IPC分类号： F01L9/02

CPC分类号： F01L9/02 ,  F01L2820/01 ,  Y10T137/0318

摘要： The object of the present invention is to provide a camless valve driving device, without having a cam mechanism, which can reduce the valve driving energy and enhances fuel efficiency. According to the one preferred aspect of the present invention, the valve driving device of an internal combustion engine includes a pressure chamber, to which actuating fluid, to drive opening and closing of a main valve serving as an intake valve or as an exhaust valve of the internal combustion engine, is supplied; a first actuating valve for supplying high-pressure (Pc) actuating fluid to the pressure chamber during a prescribed period (tCP1) of the initial valve opening period of the main valve; a second actuating valve for introducing low-pressure (Pf) actuating fluid to the pressure chamber after the prescribed period (tCP1) has elapsed; a third actuating valve for discharging actuating fluid from the pressure chamber when the main valve is closed. According to the another preferred aspect, the valve driving device of an internal combustion engine further includes a valve spring and a magnet to impel the main valve toward the closed direction. Accordingly, the holding force of the main valve during the main valve opening period is restrained to the minimum, and the valve driving energy is decreased.

摘要翻译： 本发明的目的是提供一种不具有凸轮机构的无凸轮阀驱动装置，其可以减少阀驱动能量并提高燃料效率。 根据本发明的一个优选方案，内燃机的气门驱动装置包括：压力室，致动流体驱动作为进气门的主阀的开闭动作，或作为排气阀 提供内燃机; 第一致动阀，用于在主阀的初始阀打开时段的规定时间段（tCP 1）内向压力室供应高压（Pc）致动流体; 第二致动阀，用于在经过规定时间段（tCP 1）之后将低压（Pf）致动流体引入压力室; 第三致动阀，用于当所述主阀关闭时从所述压力室排放致动流体。 根据另一个优选的方面，内燃机的气门驱动装置还包括阀弹簧和用于将主阀推向关闭方向的磁体。 因此，主阀打开期间的主阀的保持力被抑制到最小，并且阀驱动能量减小。

公开(公告)号：US06192863B1

公开(公告)日：2001-02-27

申请号：US09537096

申请日：2000-03-29

申请人： Shigehisa Takase

发明人： Shigehisa Takase

IPC分类号： F02M3704

CPC分类号： F02D41/3809 ,  F02D41/402 ,  Y02T10/44

摘要： Disclosed a common-rail fuel-injection system employing an auxiliary injection such as a pilot injection system, in which when a desired amount of fuel to be injected in the auxiliary injection is less than a set value, the feedback control ceases to keep the combustion against becoming unstable. When a desired amount of fuel to be injected in the auxiliary injection is proved on comparison at step 15 to be less than a minimum amount of fuel injected, which is the lower limit detectable according to both of the common-rail pressure and a pressure drop in the common-rail pressure owing to the fuel injection, the minimum amount of fuel injected serves on step 18 as a corrected, desired amount of fuel to be injected in the auxiliary injection. Thus, the fuel injection is achieved in accordance with the corrected, desired amount of fuel to be injected in the auxiliary injection, thereby keeping the feedback control at the auxiliary injection from becoming unstable. As an alternative, the minimum amount of fuel injected may be replaced with a set value, which is defined on the basis of the minimum amount of fuel injected.

摘要翻译： 公开了一种使用诸如先导喷射系统的辅助喷射的共轨燃料喷射系统，其中当在辅助喷射中要喷射的期望量的燃料小于设定值时，反馈控制停止保持燃烧 反对变得不稳定。 当在步骤15中比较时证明要在辅助喷射中喷射的所需量的燃料小于最小喷射量时，这是根据共轨压力和压降两者可检测的下限 在由于燃料喷射引起的共轨压力中，喷射的燃料的最小量在步骤18中用作在辅助喷射中喷射的校正的所需量的燃料。 因此，根据要在辅助喷射中喷射的校正的期望量的燃料来实现燃料喷射，从而保持辅助喷射处的反馈控制不会变得不稳定。 作为替代方案，喷射的燃料的最小量可以用设定值来代替，该设定值是基于喷射的最小燃料量来定义的。