公开(公告)号：US06298300B1

公开(公告)日：2001-10-02

申请号：US09450135

申请日：1999-11-26

Applicant: Yoshishige Ohyama ,  Mamoru Fujieda ,  Toshiharu Nogi ,  Takuya Shiraishi ,  Minoru Ohsuga

Inventor： Yoshishige Ohyama ,  Mamoru Fujieda ,  Toshiharu Nogi ,  Takuya Shiraishi ,  Minoru Ohsuga

IPC: F02D1702

CPC classification number: F02D13/0215 ,  F01L13/0036 ,  F01L2201/00 ,  F02B3/06 ,  F02B23/101 ,  F02B39/12 ,  F02B2075/125 ,  F02B2275/32 ,  F02D13/0207 ,  F02D13/0223 ,  F02D13/0234 ,  F02D13/0269 ,  F02D41/0002 ,  F02D41/04 ,  F02D41/34 ,  F02D2013/0292 ,  F02D2041/001 ,  F02D2041/389 ,  F02D2200/501 ,  F02M41/123 ,  F02M45/08 ,  F02M47/02 ,  F02M47/027 ,  F02M51/0671 ,  F02M59/102 ,  F02M61/06 ,  F02M61/161 ,  F02M61/18 ,  F02M2200/21 ,  Y02T10/123 ,  Y02T10/142 ,  Y02T10/42 ,  Y02T10/44 ,  Y10T477/67

Abstract: A drive system composed of an engine and a transmission is controlled in accordance with a desired wheel toque corresponding to a position of an accelerator, and a present vehicle speed in such a way that a speed ratio of the transmission is determined in consideration with torque factors such as an air-fuel ratio on the engine side, thereby it possible to optimize the control in order to reduce the emission of exhaust substance such as NOx and to enhance the acceleration performance and the fuel economy.

Abstract translation: 由发动机和变速器构成的驱动系统根据与加速器的位置相对应的期望的车轮转矩进行控制，以及当前车速，以使变速器的变速比与转矩因子 例如发动机侧的空燃比，从而可以优化控制以减少排放物质如NOx的排放，并且提高加速性能和燃料经济性。

公开(公告)号：US06213098B1

公开(公告)日：2001-04-10

申请号：US09653258

申请日：2000-08-31

Applicant: Masaaki Kato ,  Satoru Sasaki

Inventor： Masaaki Kato ,  Satoru Sasaki

IPC: F02M4100

CPC classification number: F02M61/163 ,  F02M45/08 ,  F02M45/083 ,  F02M47/027 ,  F02M61/1806 ,  F02M63/0026

Abstract: A fuel injection device is composed of a valve member to open and close an injection hole, a high pressure passage for generating a basic pressure force to urge the valve member in a direction of opening the injection hole, an electromagnetic valve, first and second springs for generating biasing forces to urge the valve member in a direction of closing the injection hole, and first and second control chambers disposed in the fuel passages. The respective control chambers are communicated with the high pressure passage when the electromagnetic valve is not actuated and respective fuel pressure in the first and second control chambers urge the valve member in a direction of closing the injection hole, and the respective control chambers are communicated one after another at different timings to a low pressure conduit to reduce fuel pressure therein when the electromagnetic valve is actuated. With the device mentioned above, the valve member may be stepwise lifted to achieve variable fuel injection rate by controlling the control chambers in order to change a force balance with the basic pressure force and the biasing force.

Abstract translation: 燃料喷射装置由打开和关闭喷射孔的阀构件，用于产生沿着打开喷射孔的方向推压阀构件的基本压力的高压通道，电磁阀，第一和第二弹簧 用于产生偏压力以沿关闭喷射孔的方向推动阀构件，以及设置在燃料通道中的第一和第二控制室。 当电磁阀未致动时，相应的控制室与高压通道连通，并且第一和第二控制室中的相应的燃料压力沿着关闭喷射孔的方向推动阀构件，并且各个控制室被连通 另一个在不同的时间到低压管道，以在电磁阀致动时减少其中的燃料压力。 利用上述装置，可以通过控制控制室来逐步提升阀构件以实现可变燃料喷射速率，以便改变与基本压力和偏置力的力平衡。

公开(公告)号：US06189509B1

公开(公告)日：2001-02-20

申请号：US09462836

申请日：2000-01-13

Applicant: Jean-Louis Froment

Inventor： Jean-Louis Froment

IPC: F02M3704

CPC classification number: F02M45/00 ,  F02M45/08 ,  F02M47/02 ,  F02M47/025 ,  F02M47/027 ,  F02M59/366 ,  F02M61/205

Abstract: The invention concerns a device for injecting fuel into a diesel engine using a pulsating flow pump for improving the fuel performance of the engines by controlling the beginning and the end of the injection. It comprises a device (20) controlling the closing and opening of the nozzle needle (5) provided with a discharge circuit (21, 21′) controlled by an electrovalve (25) in branched connection between the high pressure supply conduit (7) and the low pressure return conduit (8). The discharge circuit (21, 21′) comprises a discharge valve (22) whereof the opening and the closing are slowed down by a calibrated orifice (23). The discharge valve (22) located upstream of a discharge orifice (27) provided on the return conduit (8) enables to deviate part of the non-injected fuel flow towards the nozzle needle (5) to exert thereon a closing pressure. Consequently, this results in a better control over the opening and closing of the nozzle needle (5). A calibrated valve (24) ensures that the pressure in the discharge circuit (21) is maintained between two injections. During the injection cycle, the supply of fuel towards the nozzle needle (5) is not impeded by the control device (20) components. The invention is applicable to diesel engines using pulsating injection pumps.

Abstract translation: 本发明涉及一种用于使用脉动流泵将燃料喷射到柴油发动机中的装置，用于通过控制喷射的开始和结束来改善发动机的燃料性能。 它包括一个控制喷嘴针（5）的关闭和打开的装置（20），该装置设置有由电压阀（25）控制的放电回路（21,21'），该电动阀在高压供应管道（7）和 低压回流管道（8）。 放电回路（21,21'）包括排出阀（22），其中开口和关闭通过校准孔（23）减慢。 设置在返回管道（8）上的排放孔（27）上游的排放阀（22）使得能够将部分未喷射的燃料流朝向喷嘴针（5）偏转以在其上施加关闭压力。 因此，可以更好地控制喷嘴针（5）的打开和关闭。 校准阀（24）确保在两次喷射之间保持放电回路（21）中的压力。 在注射循环期间，向喷嘴针（5）供应的燃料不受控制装置（20）组件的阻碍。 本发明适用于使用脉动注射泵的柴油发动机。

公开(公告)号：US06168096A

公开(公告)日：2001-01-02

申请号：US09465844

申请日：1999-12-17

Applicant: Roger Potschin ,  Friedrich Boecking

Inventor： Roger Potschin ,  Friedrich Boecking

IPC: F23D1468

CPC classification number: F02M47/027 ,  F02M45/08 ,  F02M63/0035 ,  F02M63/0056

Abstract: A fuel injection device for internal combustion engines which under the control of a control unit supplies fuel injection valves with fuel from a high-pressure fuel source. The fuel injection valve has an injection valve member, whose opening and closing position is determined by a pressure acting upon the injection valve member set in a control chamber. To perform an injection, the pressure in the control chamber must be relieved, which is accomplished with a control valve that opens two different outflow cross sections of an outflow conduit of the control chamber in succession. It is thus possible to accomplish an adapted opening of a fuel injection valve member for a preinjection and a main injection.

Abstract translation: 一种用于内燃机的燃料喷射装置，其在控制单元的控制下为燃料喷射阀提供来自高压燃料源的燃料。 燃料喷射阀具有喷射阀构件，其打开和关闭位置由作用在设置在控制室中的喷射阀构件的压力决定。 为了进行注射，必须释放控制室中的压力，这是通过控制阀连续打开控制室的流出管道的两个不同流出横截面来实现的。 因此，可以实现用于预喷射和主喷射的燃料喷射阀构件的适当打开。

公开(公告)号：US5984201A

公开(公告)日：1999-11-16

申请号：US946971

申请日：1997-10-08

Applicant: Karl Hofmann ,  Wolfram Gerwing

Inventor： Karl Hofmann ,  Wolfram Gerwing

IPC: F02M45/08 ,  F02M47/00 ,  F02M51/06 ,  F02M61/16 ,  F02M63/00 ,  F02M47/02

CPC classification number: F02M61/161 ,  F02M45/08 ,  F02M45/083 ,  F02M2200/505

Abstract: A fuel injection valve for internal combustion engines, having a valve member that is guided so that it can slide axially in a bore of a valve body. The valve member has a valve sealing face on one end which cooperates with a valve seat face on the valve body and this valve member, on an end remote from the valve sealing face, is acted on in the closing direction toward the valve seat by a valve spring, as well as having another adjusting member that controls a two-stage opening stroke course of the valve member. In order to control the two-stage opening stroke course of the valve member, the adjusting member is embodied as an adjustable stop, in which the valve member comes into at least indirect contact with after passing through a partial stroke and which in a first position, is locked in its initial position and in a second position, can be moved in the opening direction by means of the valve member.

Abstract translation: 一种用于内燃机的燃料喷射阀，其具有被引导以使其能够在阀体的孔中轴向滑动的阀构件。 阀构件在一端具有与阀体上的阀座面配合的阀密封面，并且该阀构件在远离阀密封面的端部上沿关闭方向朝向阀座作用一个 阀弹簧，以及具有控制阀构件的两级打开行程的另一个调节构件。 为了控制阀构件的两级打开行程，调节构件被实施为可调节止动件，其中阀构件经过部分行程至少间接接触，并且在第一位置 被锁定在其初始位置并且在第二位置中，可以通过阀构件在打开方向上移动。

公开(公告)号：US5975433A

公开(公告)日：1999-11-02

申请号：US959050

申请日：1997-10-28

Applicant: Toshiyuki Hasegawa ,  Takashi Kobayashi

Inventor： Toshiyuki Hasegawa ,  Takashi Kobayashi

IPC: F02M45/08 ,  F02M61/04 ,  F02M61/10 ,  F02M61/16 ,  F02M61/18

CPC classification number: F02M61/16 ,  F02M45/08 ,  F02M61/042 ,  F02M61/1806 ,  F02M2200/29

Abstract: A fuel injection nozzle with which it is possible to control the nozzle hole area and the injection period so that the injection pressure, the injection period and the injection amount are suited to the load and the speed of the engine and with which it is possible to conduct a pilot injection and a main injection certainly and precisely by simple control using a small actuator just by rotating this actuator in one direction. The fuel injection nozzle is of a type having a rotary valve disposed in a well, the rotary valve being rotated by an actuator to adjust the opening area of the nozzle holes formed in an enclosing wall bounding the well; the enclosing wall has a conical inner surface and the rotary valve has at its upper end a pressure-receiving surface for receiving the pressure of the pressurized fuel and has at its circumferential periphery a conical seat surface of an angle matching the angle of the conical inner surface of the enclosing wall. A plurality of pairs of fuel passages each pair consisting of a first passage and a second passage whose opening area is smaller than that of the first passage each passage having one end opening at the pressure-receiving surface and the other end connectable with the nozzle holes are provided in the rotary valve spaced in the direction of its rotation.

Abstract translation: 一种能够控制喷嘴孔面积和喷射周期的燃料喷射喷嘴，使得喷射压力，喷射期间和喷射量适合于发动机的负载和速度，并且可以通过喷嘴 通过使用小型执行器的简单控制，只需通过在一个方向上旋转执行器，就可以精确地进行引燃喷射和主喷射。 燃料喷嘴是具有设置在井中的旋转阀的类型，旋转阀由致动器旋转以调节形成在围绕井的封闭壁中的喷嘴孔的开口面积; 封闭壁具有锥形内表面，并且旋转阀的上端具有用于承受加压燃料的压力的压力接收表面，并且在其圆周周边处具有与圆锥形内表面的角度匹配的锥形座表面 围墙的表面。 多对燃料通道，每对由第一通道和第二通道组成，其开口面积小于第一通道的开口面积，每个通道在受压表面处具有一端开口，另一端与喷嘴孔连接 设置在沿其旋转方向间隔开的旋转阀中。

公开(公告)号：US5826793A

公开(公告)日：1998-10-27

申请号：US739546

申请日：1996-10-30

Applicant: James Martin Anderton Askew

Inventor： James Martin Anderton Askew

IPC: F02M45/08 ,  F02M61/20 ,  F02M47/00

CPC classification number: F02M45/08 ,  F02M61/205

Abstract: An injector is described which comprises a valve element engageable with a seating, the valve element being resiliently biased into engagement with the seating. The valve element includes a thrust surface arranged, in use, to have high pressure fuel applied thereto to lift the valve element from the seating. A stop in the form of a second valve member is arranged to restrict movement of the valve element away from the seating, the second valve member being arranged to have high pressure fluid applied thereto and being movable under the influence of the valve element against the action of the high pressure fluid, in use.

Abstract translation: 描述了一种注射器，其包括可与座位接合的阀元件，该阀元件被弹性地偏置成与座部接合。 阀元件包括推力表面，该推力表面在使用中被布置成具有施加到其上的高压燃料以从阀座提升阀元件。 布置成以第二阀构件的形式的止动件限制阀元件远离阀座的运动，第二阀构件布置成具有施加到其上的高压流体并且可在阀元件的作用下抵抗动作 的高压流体，在使用中。

公开(公告)号：US5743237A

公开(公告)日：1998-04-28

申请号：US788494

申请日：1997-01-28

Applicant: George M. Matta

Inventor： George M. Matta

IPC: F02M45/08 ,  F02M45/12 ,  F02M57/02 ,  F02M63/00 ,  F02M37/04

CPC classification number: F02M57/025 ,  F02M45/08 ,  F02M45/12 ,  F02M2200/40

Abstract: A hydraulically-actuated fuel injector includes an injector body that defines an actuation fluid cavity, a piston bore, a plunger bore, a nozzle chamber and a nozzle outlet that opens to the nozzle chamber. A piston is slidably received in the piston bore and moveable between an upper position and a lower position. A plunger is slidably positioned in the plunger bore and moveable between a retracted position and an advanced position. A portion of the plunger and the plunger bore define a fuel pressurization chamber that opens to the nozzle chamber. The injector body further defines a nozzle supply passage extending between the fuel pressurization chamber and the nozzle chamber, a spill passage extending between the nozzle supply passage and the nozzle chamber, and a fuel return passage opening into the nozzle chamber. A needle valve member is positioned in the nozzle chamber and moveable a distance between an open position in which the nozzle outlet is open and a closed position in which the nozzle outlet is blocked. The needle valve member blocks the spill passage and the fuel return passage when the needle valve member is in its open position and when it is in its closed position. However, an annulus in the needle valve member opens the spill passage to the fuel return passage over a portion of the travel distance of the needle valve member between its open position and its closed position.

Abstract translation: 液压致动的燃料喷射器包括限定致动流体腔的喷射器主体，活塞孔，柱塞孔，喷嘴室和对喷嘴室开口的喷嘴出口。 活塞可滑动地容纳在活塞孔中并可在上部位置和下部位置之间移动。 柱塞可滑动地定位在柱塞孔中并且可在缩回位置和前进位置之间移动。 柱塞和柱塞孔的一部分限定了通向喷嘴室的燃料加压室。 喷射器主体还限定在燃料加压室和喷嘴室之间延伸的喷嘴供应通道，在喷嘴供应通道和喷嘴室之间延伸的溢流通道以及通向喷嘴室的燃料返回通道。 针阀构件定位在喷嘴室中，并且在喷嘴出口打开的打开位置和喷嘴出口被封闭的关闭位置之间可移动一定距离。 针阀构件在针阀构件处于其打开位置时和当其处于其关闭位置时阻塞溢流通道和燃料返回通道。 然而，针阀构件中的环形空气通过针阀构件在其打开位置和其关闭位置之间的行进距离的一部分上的燃料返回通道的溢流通道。

公开(公告)号：US5533481A

公开(公告)日：1996-07-09

申请号：US452755

申请日：1995-05-30

Applicant: Maximilian Kronberger

Inventor： Maximilian Kronberger

IPC: F02M41/12 ,  F02M45/08 ,  F02M61/10 ,  F02M61/20 ,  F02B3/00

CPC classification number: F02M61/205 ,  F02M45/08 ,  F02M61/20 ,  F02M2200/28

Abstract: A fuel injection system having a fuel injection pump whose high-pressure delivery is determined by means of an electrically controlled valve, which controls a relief conduit; the phase of the preinjection quantity supply and the main injection quantity supply are determined by the closing of this valve. To increase the precision of the injection, the injection system is provided with an injection valve, whose valve needle withdraws fuel from a damping chamber during the opening stroke via a throttle opening, which decreases with increasing valve needle stroke. Hence the opening motion of the valve needle becomes invulnerable to pressure surges, and the precision of the controlled fuel injection is increased.

Abstract translation: 一种燃料喷射系统，具有燃料喷射泵，其高压输送通过控制排气管的电控阀确定; 预注射量供给的阶段和主喷射量供给通过关闭该阀来确定。 为了提高注射精度，注射系统设置有一个注射阀，其阀针通过节气门开口在打开行程期间从阻尼室中抽出燃料，随着阀针行程的增加而减小。 因此，阀针的打开运动变得不受压力冲击，并且控制燃料喷射的精度增加。

公开(公告)号：US5219122A

公开(公告)日：1993-06-15

申请号：US936650

申请日：1992-08-28

Applicant: Takashi Iwanaga

Inventor： Takashi Iwanaga

IPC: F02M45/08 ,  F02M47/02

CPC classification number: F02M47/027 ,  F02M45/08 ,  Y10S239/90

Abstract: A feel injection system for an engine controls a behavior of a nozzle needle for controlling a fuel injection timing and a fuel injection amount. The system controls a hydraulic pressure applied to the nozzle needle for displacing the nozzle needle between its fully opened position and its fully closed position. The system so controls the hydraulic pressure applied to the nozzle needle as to quickly displace the nozzle needle from the fully opened position to a given position which is located between the fully opened and closed positions, on the other hand, slowly displace the nozzle needle from the given position to the fully closed position so as to decrease an impact load applied to a valve seat for the nozzle needle when the nozzle needle is seated onto the valve seat.