公开(公告)号：US06634339B2

公开(公告)日：2003-10-21

申请号：US10000624

申请日：2001-10-31

Applicant: Junru He ,  Edward Gillis

Inventor： Junru He ,  Edward Gillis

IPC: F02M3704

CPC classification number: F02M47/027 ,  F02M45/02 ,  F02M45/04 ,  F02M45/08 ,  F02M45/12 ,  F02M55/02 ,  F02M57/025 ,  F02M59/466 ,  F02M61/12 ,  F02M63/0056 ,  F02M2200/28

Abstract: A nozzle supply valve is positioned in the nozzle supply passage of a fuel injector, and is constructed to generate a boot shaped rate trace mechanically. The goal of the concept is to restrict the flow area during the first boot step and release the flow area restriction in the second step. During the first stage of injection, the flow to the nozzle only goes through a restricted orifice. When the line pressure is high enough to overcome the valve movement pressure spring preload, the nozzle supply valve moves to an unrestricted position, and the boot shaped rate trace is formed. Since this boot shape rate trace is generated mechanically, it can be combined with fuel injectors having a direct control needle valve in order to get different rate traces including, ramps, squares, pilots, posts and other split injections.

Abstract translation: 喷嘴供给阀定位在燃料喷射器的喷嘴供给通道中，并且被构造成机械地产生靴形速率迹线。 该概念的目标是在第一启动步骤期间限制流动区域并释放在第二步骤中的流动区域限制。 在注射的第一阶段期间，到喷嘴的流动仅通过限制孔。 当管路压力足够高以克服阀门运动压力弹簧预压时，喷嘴供给阀移动到不受限制的位置，形成靴形速率曲线。 由于这种引导形状速率曲线是机械地产生的，所以它可以与具有直接控制针阀的燃料喷射器组合，以便获得不同的速率迹线，包括坡道，平方，飞行员，柱和其他分裂喷射。

公开(公告)号：US20030155449A1

公开(公告)日：2003-08-21

申请号：US10339413

申请日：2003-01-10

Inventor： Motoyuki Abe ,  Yoshio Okamoto ,  Makoto Yamakado ,  Tohru Ishikawa ,  Shuichi Shimizu

IPC: B05B001/30

CPC classification number: F02B23/104 ,  F02B2075/125 ,  F02M45/08 ,  F02M51/0671 ,  F02M61/162 ,  F02M61/168 ,  F02M61/18 ,  F02M61/1806 ,  F02M61/186 ,  F02M61/188 ,  F02M69/045 ,  F02M2200/9038 ,  Y02T10/123 ,  Y02T10/125

Abstract: To supply a method that enables the inclination of the injection direction and the distribution of the penetration force of spray to be adjusted over a wide range, and an axially symmetrical spray shape to be obtained even when the injection hole is inclined, or the shape of the spray to be changed without inclining the injection hole. To provide a fuel passageway 203 as a swirling force adjustment means between the valve seat 201 and injection hole 101 of the fuel injector. This swirling force adjustment means adjusts the distribution of the swirling force of the fuel flowing into injection hole 101, and thus adjusts the spray shape obtained as a result.

Abstract translation: 为了提供能够在宽范围内调整喷射方向的倾斜和喷射的贯通力的分布的方法，即使在喷射孔倾斜时也能获得轴对称的喷雾形状， 喷雾改变而不倾斜注射孔。 在燃料喷射器的阀座201和喷射孔101之间提供作为旋转力调节装置的燃料通道203。 这种旋转力调节装置调节流入喷射孔101的燃料的旋转力的分布，从而调节作为结果获得的喷射形状。

公开(公告)号：US06584953B2

公开(公告)日：2003-07-01

申请号：US09991240

申请日：2001-11-14

Applicant: Koichiro Yomogida

Inventor： Koichiro Yomogida

IPC: F02B310

CPC classification number: F02M63/0225 ,  F02B3/06 ,  F02D41/3836 ,  F02D41/403 ,  F02D2200/0602 ,  F02M45/08 ,  F02M47/027 ,  Y02T10/44

Abstract: This invention provides a common rail fuel injection device, which ensures the functions of pilot injection even at high fuel pressure in the common rails, by changing the injection end delay period of the pilot injection in accordance with the fuel pressure in the common rail. The period displacement &Dgr;SOCp to be applied to the pulse start time of the pilot injection command pulse CPp, with respect to the top dead centre T7, is set to a timing that is advanced by the interval period Tint, pilot injection end delay period Tdpe and injection pulse width Pwp for pilot injection, with respect to the main injection start time T6.

Abstract translation: 本发明提供一种共轨燃料喷射装置，其通过根据共轨中的燃料压力改变引燃喷射的喷射结束延迟时段，确保即使在共轨中的高燃料压力下的先导喷射的功能。 针对上止点T7将针对喷射指令脉冲CPp的脉冲开始时间施加的周期位移DELTASOCp设定为以间隔周期Tint，导频注入结束延迟期间Tdpe为前提的定时， 相对于主喷射开始时间T6，用于先导喷射的喷射脉冲宽度Pwp。

公开(公告)号：US06568369B1

公开(公告)日：2003-05-27

申请号：US09729880

申请日：2000-12-05

Applicant: Chetan J. Desai ,  Xinshaung Nan

Inventor： Chetan J. Desai ,  Xinshaung Nan

IPC: F02M4100

CPC classification number: F02M57/025 ,  F02M45/04 ,  F02M45/08 ,  F02M47/022 ,  F02M59/105 ,  F02M63/0225

Abstract: The present invention relates to common rail fuel injectors, and includes an example of such an injector, a fuel injection system employing such an injector, and a method of injecting fuel. The fuel injector includes an injector body, a fuel pressurization chamber, a nozzle chamber, a needle control chamber, a needle control spill outlet, a fuel inlet, and a nozzle outlet. The present fuel injection system includes a source of intermediate pressure fuel, a low pressure fuel reservoir, a needle valve, a flow control valve, and at least one of the present fuel injectors. The method of injecting fuel consists of the steps of injecting fuel at an intermediate pressure at least in part by fluidly connecting the injector's nozzle chamber to an intermediate fuel source, and injecting fuel at a high pressure at least in part by exposing a pressure intensifying element to the source of intermediate pressure fuel.

Abstract translation: 本发明涉及共轨燃料喷射器，并且包括这种喷射器的示例，使用这种喷射器的燃料喷射系统以及喷射燃料的方法。 燃料喷射器包括喷射器主体，燃料加压室，喷嘴室，针控制室，针控制溢出口，燃料入口和喷嘴出口。 本燃料喷射系统包括中压燃料源，低压燃料储存器，针阀，流量控制阀以及至少一个本燃料喷射器。 喷射燃料的方法包括以下步骤：至少部分地通过将喷射器的喷嘴室流体地连接到中间燃料源来在中压下喷射燃料，并且至少部分地通过暴露加压元件 到中压燃料的来源。

公开(公告)号：US06520143B2

公开(公告)日：2003-02-18

申请号：US09849620

申请日：2001-05-07

Applicant: Andreas Wengert

Inventor： Andreas Wengert

IPC: F02M4504

CPC classification number: F02M45/08 ,  F02M45/04 ,  F02M55/02 ,  Y10T137/7928

Abstract: A preinjection valve with a valve body, in which an inlet conduit is embodied which can be filled with fuel at high pressure via a high-pressure pump. An outlet conduit is embodied in the valve body and discharges laterally into the inlet conduit and communicates with a fuel injection valve via a high-pressure line. A preinjection valve member is guided sealingly in the inlet conduit and is moved counter to a closing force by the fuel pressure in the inlet conduit and after executing a preinjection stroke (hv) comes to rest on a deflection valve member guided, likewise sealingly, in the inlet conduit. By the motion of the preinjection valve member, a preinjection quantity is pumped into the outlet conduit and delivered to the fuel injection valve. When a main injection pressure in the inlet conduit is attained, the deflection valve member is moved by the fuel pressure until, on traversing an opening stroke (h0), the communication from the inlet conduit into the outlet conduit is opened, and fuel can flow to the fuel injection valve.

公开(公告)号：US06516264B2

公开(公告)日：2003-02-04

申请号：US09953291

申请日：2001-09-17

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

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

IPC: G06F1700

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.

公开(公告)号：US20020148444A1

公开(公告)日：2002-10-17

申请号：US10167140

申请日：2002-06-11

Inventor： Gregory W. Hefler ,  Shikui K. Chen

IPC: F02M001/00

CPC classification number: F02M57/026 ,  F02B2275/14 ,  F02G5/00 ,  F02M45/04 ,  F02M45/08 ,  F02M47/027 ,  F02M57/025 ,  F02M59/105 ,  F02M59/366 ,  F02M59/466 ,  F02M59/468 ,  F02M63/0049 ,  Y02T10/123 ,  Y02T10/166

Abstract: A hydraulically actuated fuel injector has an injector body including a barrel and defining a nozzle chamber, a needle control chamber, and a nozzle outlet that opens to the nozzle chamber. The injector body further includes an actuation fluid inlet and an actuation fluid drain. A barrel defines an actuation fluid cavity and a piston bore, which includes an upper bore and a lower bore. Fuel is hydraulically pressurized in the nozzle chamber. A piston with a stepped top slides in the piston bore and moves in between a retracted position and an advanced position. A needle valve member in the nozzle chamber moves between an open position and a closed position. The needle valve member includes a closing hydraulic surface exposed to pressure in the needle control chamber. A needle control valve including an actuator is attached to the injector body and moves between an off position in which the needle control chamber is opened to a source of high pressure fluid and an on position in which the needle control chamber is opened to a low pressure passage. An actuation fluid control valve opens and closes the actuation fluid cavity.

Abstract translation: 液压致动的燃料喷射器具有喷射器主体，该喷射器主体包括一个筒体，并且限定一个喷嘴腔，一个针头控制室和一个通向喷嘴腔的喷嘴出口。 喷射器主体还包括致动流体入口和致动流体排出口。 筒体限定致动流体腔和活塞孔，其包括上孔和下孔。 燃料在喷嘴室中液压加压。 具有台阶顶部的活塞在活塞孔中滑动并在缩回位置和前进位置之间移动。 喷嘴室中的针阀构件在打开位置和关闭位置之间移动。 针阀构件包括暴露于针控制室内的压力的关闭液压表面。 包括致动器的针控制阀被附接到喷射器主体，并且在针控制室打开的关闭位置与高压流体源之间以及针控制室打开的打开位置处于低压 通道。 致动流体控制阀打开和关闭致动流体腔。

公开(公告)号：US20020083920A1

公开(公告)日：2002-07-04

申请号：US09991564

申请日：2001-11-16

Inventor： Gerhard Konig ,  Heinz Oing ,  Gregor Renner

IPC: F02F003/26

CPC classification number: F02M61/1813 ,  F02B1/12 ,  F02B3/06 ,  F02B23/06 ,  F02B23/0669 ,  F02B23/0672 ,  F02B2275/14 ,  F02F3/26 ,  F02M45/08 ,  F02M61/08 ,  F02M61/1826 ,  Y02T10/123 ,  Y02T10/125

Abstract: In a method for the injection of Diesel fuel into a combustion chamber of a Diesel engine by way of a fuel injection valve with a plurality of pilot and main fuel injection ports, the fuel is injected during partial load operation only by way of the pilot injection ports such that a homogeneous mixture is formed and, under full load operation, fuel is additionally injectednullafter a pausenullthrough the main fuel injection ports in such a way that a fuel jet bundle is formed in combination with the fuel jets formed by the pilot ports which is extends over the whole periphery of the combustion chamber. The fuel injection valve has the main fuel ports arranged in a piezo-actuated tappet in series in the direction of the opening movement of the tappet behind the associated pilot ports. With the piezo drive the opening stroke of the tappet can be controlled so as to provide fuel injection pauses between the pilot fuel injection and the main fuel injection.

Abstract translation: 在通过具有多个先导和主燃料喷射口的燃料喷射阀将柴油燃料喷射到柴油发动机的燃烧室中的方法中，仅在部分负载操作期间仅通过先导喷射 端口，使得形成均匀的混合物，并且在全负载操作下，另外喷射燃料 - 在暂停穿过主燃料喷射口之后，使得燃料喷射束与由燃料喷射器形成的燃料喷嘴组合形成 导向口在燃烧室的整个周边上延伸。 燃料喷射阀具有主要燃料端口，其布置在压电致动挺杆中，在相关联的先导端口后面的挺杆的打开运动的方向上串联。 利用压电驱动，可以控制挺杆的打开行程，以便在先导燃料喷射和主燃料喷射之间提供燃料喷射停顿。

公开(公告)号：US20020002963A1

公开(公告)日：2002-01-10

申请号：US09810602

申请日：2001-03-16

Inventor： Dietmar Bertsch ,  Martin Bezner ,  Uwe Schaupp ,  Helmut Schorn ,  Jorg Sievert

IPC: F02B003/00

CPC classification number: F02B17/005 ,  F02B23/101 ,  F02B2023/102 ,  F02B2075/125 ,  F02M45/08 ,  F02M61/08 ,  F02M61/18 ,  Y02T10/123 ,  Y02T10/125

Abstract: A method for the formation of a combustible fuel/air mixture in a combustion chamber of a direct-injection internal combustion engine with an injection nozzle, which has a closure body includes the steps of injecting at least two partial quantities of fuel into the combustion chamber and moving the closure body of the injection nozzle into its closed position after the injection of each of the partial quantities of fuel.

Abstract translation: 在具有注射喷嘴的直喷式内燃机的燃烧室中形成可燃燃料/空气混合物的方法，其具有封闭体，该方法包括以下步骤：将至少两个部分燃料喷入燃烧室 并且在喷射每个部分燃料之后将注射喷嘴的封闭体移动到其关闭位置。

公开(公告)号：US06302080B1

公开(公告)日：2001-10-16

申请号：US09352197

申请日：1999-07-13

Applicant: Masaaki Kato ,  Toshiyuki Yoda ,  Kenji Date

Inventor： Masaaki Kato ,  Toshiyuki Yoda ,  Kenji Date

IPC: F02B310

CPC classification number: F02M45/08 ,  F02D41/3827 ,  F02D41/403 ,  F02D2041/3052 ,  F02D2041/389 ,  F02D2250/31 ,  F02M45/083 ,  F02M47/027 ,  F02M51/0678 ,  F02M61/163 ,  F02M61/18 ,  F02M61/1806 ,  F02M2200/02 ,  Y02T10/44

Abstract: The angle of fuel spray at the time of pre-injection is set to a wider angle of spray and the angle of fuel spray at the time of main injection is set to a narrower angle of spray. The pre-injection timing is set so that when fuel spray after the pre-injection is diffused in a cylinder and stratified, the stratified fuel spray is ignited by a rise in the pressure in the cylinder in association with movement of a piston from the bottom dead center to the top dead center. The main injection timing is set so that when the spray stratified by the pre-injection is burned, the fuel spray injected by the main injection passes through the combustion zone while being ignited in the combustion zone, reaches a combustion chamber of the piston, and is burned in the combustion chamber.

Abstract translation: 预喷射时的燃料喷雾角度被设定为更宽的喷射角度，并且主喷射时的燃料喷射角被设定为较窄的喷射角。 预喷射正时被设定为使得当预注射之后的燃料喷射扩散到气缸中并分层时，分层燃料喷雾随着活塞从底部的移动而引起气缸中的压力升高而被点燃 死中心到上死点。 设定主喷射正时，使得当通过预喷射分层的喷雾被燃烧时，由主喷射喷射的燃料喷雾在燃烧区点燃时通过燃烧区，到达活塞的燃烧室，并且 在燃烧室内燃烧。