公开(公告)号：WO00052325A1

公开(公告)日：2000-09-08

申请号：PCT/DE2000/000424

申请日：2000-02-24

IPC: F02M59/10 ,  F02M59/46 ,  F16K11/048

CPC classification number: F16K11/048 ,  F02M59/105 ,  F02M59/466

Abstract: The invention relates to a control valve (10) for the injection system of a diesel engine with a fuel injector and a pressure intensifier. Said control valve comprises a housing (12) with an inlet connection (16) and an outlet connection (18) and a valve body (20). Said valve body has a first valve surface (22) which in a first state closely fits a first valve seat (24) and in a second state is removed therefrom. A valve element (36) at the valve body (20) has a second valve surface (38) which in a first state is removed from a second valve seat (40) and in a second state closely fits said valve seat.

Abstract translation: 用于柴油发动机的与一个增压器，其包括具有第一阀表面的输入端子（16）和输出端子（18）和阀体（20），（22），外壳（12），其在燃料喷射器中的喷射系统中的控制阀（10） 在第一阀座（24）邻接的第一状态和在第二状态其被抬起。 在阀主体（20）的阀元件（36）具有在所述第一状态（40）被提升和施加在第二状态下在其上的第二阀座的第二阀面（38）。

公开(公告)号：WO99061784A1

公开(公告)日：1999-12-02

申请号：PCT/US1999/010541

申请日：1999-05-12

IPC: F02M45/02 ,  F02M57/02 ,  F02M59/10 ,  F02M59/36 ,  F02M59/46

CPC classification number: F02M45/02 ,  F02M57/025 ,  F02M59/105 ,  F02M59/366 ,  F02M59/466 ,  Y10T137/86622 ,  Y10T137/86702

Abstract: A hydraulically-actuated fuel injector (10) includes an injector body (11) that defines a high pressure inlet (15), a low pressure drain (16), an upper actuation fluid cavity (41), a lower actuation fluid cavity (44), and a nozzle outlet (18). A piston (50) is positioned in the injector body (11) and moveable between a retracted position and an advanced position. The piston (50) has a primary hydraulic surface (47) exposed to fluid pressure in the upper actuation fluid cavity (41), and an opposing hydraulic surface (46) exposed to fluid pressure in the lower actuation fluid cavity (44). A control valve (12) is attached in the injector body (11) and includes a spool valve member (30) that is moveable between a first position and a second position. When the spool valve member (30) is in its first position, the piston (50) is biased toward its retracted position since the upper actuation fluid cavity (41) is open to the low pressure drain, but the lower actuation fluid cavity (44) is open to the high pressure inlet. During an injection event, the spool valve member (30) is moved to its second position where the upper actuation fluid cavity (41) is open to the high pressure inlet, but the lower actuation fluid cavity (44) is open to the low pressure drain. At the end of an injection event, the spool valve member (30) is move through an intermediate position in which both the upper and lower actuation fluid cavities (41,44) are exposed to the high pressure inlet. This causes the piston (50) to abruptly cease its downward pumping stroke, resulting in a quicker drop in fuel pressure, a faster closure of the needle check valve (60), and hence a more abrupt end to the injection event.

Abstract translation: 液压致动燃料喷射器（10）包括限定高压入口（15），低压排放（16），上致动流体腔（41），下致动流体腔（44）的喷射器主体（11） ）和喷嘴出口（18）。 活塞（50）定位在喷射器主体（11）中并且能够在缩回位置和前进位置之间移动。 活塞（50）具有在上致动流体腔（41）中暴露于流体压力的主液压表面（47）和在下致动流体腔（44）中暴露于流体压力的相对液压表面（46）。 控制阀（12）安装在喷射器主体（11）中，并包括可在第一位置和第二位置之间移动的滑阀构件（30）。 当滑阀构件（30）处于其第一位置时，活塞（50）被朝向其缩回位置偏置，因为上致动流体腔（41）对低压排水开口，而下致动流体腔 ）对高压入口开放。 在注射事件期间，滑阀构件（30）移动到其上致动流体腔（41）向高压入口开放的第二位置，但是下致动流体腔（44）打开到低压 排水。 在注射事件结束时，滑阀构件（30）移动通过上下致动流体腔（41,44）暴露于高压入口的中间位置。 这导致活塞（50）突然停止其向下的泵送行程，导致燃料压力的更快下降，针止回阀（60）的更快的关闭，并且因此喷射事件的更突然的结束。

公开(公告)号：WO99015781A1

公开(公告)日：1999-04-01

申请号：PCT/US1998/019321

申请日：1998-09-14

IPC: F02M57/02 ,  F02M59/36 ,  F02M59/46 ,  F16K31/06

CPC classification number: F16K31/0655 ,  F02M57/02 ,  F02M59/366 ,  F02M59/466

Abstract: A control valve (30), preferably for use in a fuel injector (14), includes a valve body (41, 42) defining an inlet passage (32) separated from an outlet passage (33-35) by a valve seat (58). A single pole solenoid (60) is attached to the valve body (41, 42), and includes a pole piece (81) and an armature (61). A valve member (65) with a centerline (37) is positioned in the valve body (41, 42), attached to the armature (61) and moveable between an open position in which the inlet passage (32) is open to the outlet passage (33-35), and a closed position in which the inlet passage (32) is closed to the outlet passage (33-35). The pole piece (81) is positioned between the valve seat (58) and the armature (61) along the centerline (37) of the valve member (65).

Abstract translation: 优选地用于燃料喷射器（14）的控制阀（30）包括阀体（41,42），其限定通过阀座（58）与出口通道（33-35）分离的入口通道（32） ）。 单极螺线管（60）附接到阀体（41,42），并且包括极靴（81）和衔铁（61）。 具有中心线（37）的阀构件（65）定位在阀体（41,42）中，附接到电枢（61），并且能够在入口通道（32）打开的打开位置与出口 通道（33-35），以及关闭位置，其中入口通道（32）关闭到出口通道（33-35）。 极片（81）沿着阀构件（65）的中心线（37）定位在阀座（58）和衔铁（61）之间。

公开(公告)号：WO99015780A1

公开(公告)日：1999-04-01

申请号：PCT/US1998/019229

申请日：1998-09-16

IPC: F02M57/02 ,  F02M59/36 ,  F02M59/46 ,  F16K31/08 ,  H01F7/122 ,  H01F7/16

CPC classification number: F02M59/366 ,  F02M57/023 ,  F02M59/466 ,  F16K31/082 ,  H01F7/122 ,  H01F7/1646

Abstract: A control valve (30), preferably for use with a fuel injector (14), includes a valve body (41-43) defining an inlet passage (32) separated from an outlet passage (33-35) by a valve seat (58). A solenoid (60) is attached to the valve body (41-43), and includes a coil (80) and an armature (61). A portion of the armature (61) is a permanent magnet (63). The polarity of the permanent magnet (63) is oriented such that the armature (61) is pushed away from the coil (80) when the solenoid (60) is energized. A valve member (65) us positioned in the valve body (41-43) and attached to the armature (61). The valve member (65) is moveable between an open position in which the inlet passage (32) is open to the outlet passage (33-35), and a closed position in which the inlet passage (32) is closed to the outlet passage (33-35).

Abstract translation: 优选地与燃料喷射器（14）一起使用的控制阀（30）包括限定通过阀座（58）与出口通道（33-35）分离的入口通道（32）的阀体（41-43） ）。 螺线管（60）附接到阀体（41-43），并且包括线圈（80）和电枢（61）。 电枢（61）的一部分是永磁体（63）。 永磁体（63）的极性被定向成使得当螺线管（60）通电时，电枢（61）被推离线圈（80）。 阀构件（65），其定位在阀体（41-43）中并且附接到电枢（61）。 阀构件（65）可以在入口通道（32）与出口通道（33-35）打开的打开位置和关闭位置之间移动，在该位置，入口通道（32）关闭到出口通道 （33-35）。

公开(公告)号：WO98049441A1

公开(公告)日：1998-11-05

申请号：PCT/DE1998/000507

申请日：1998-02-20

IPC: F02M41/14 ,  F02M59/46

CPC classification number: F02M59/466 ,  F02M41/1411

Abstract: The invention relates to a distributor fuel injection pump having a reciprocatingly driven piston (17) which is stress-bearing in a rotating distributor shaft (11) and delivers fuel from a pump working area (18) via a distributor opening (20) to various fuel injection valves. In order to control the duration of the high-pressure injection, an electrically operated valve (16) is fitted, having a valve element (35) which separates a first valve area (36) connected to the pump working area (18) from a second valve area (24) connected to a low-pressure area (36). In order to end high-pressure injection, the valve element (35) establishes a connection between both valve areas, whereby the fuel outflow is controlled by a narrowing (57) in the diameter (57) of the connecting conduit, thus reducing cavitation tendency.

Abstract translation: 所以建议分配器类型，其包括往复运动驱动的泵活塞（17），其在一个旋转分配器轴（11）和燃料经由分配开口的泵的工作空间（18）（20）不同的燃料喷射阀供给轴承的燃料喷射泵。 为了控制高压喷射的持续时间，电操作阀（16）设置有一个阀件（35），连接到第一到由第二连接至低压区域中的泵的工作空间（18）（36）的阀空间（45）的阀空间（24） 分离。 以终止该高压喷射时，阀件（35）建立在两个阀空间之间的连接，其中，所述电动机电流的流出在于控制在所述连接线（127）具有一个直径收缩（57）被布置成使得一个空化减少。

公开(公告)号：WO1996026378A1

公开(公告)日：1996-08-29

申请号：PCT/US1996002235

申请日：1996-02-20

Applicant: APPLIED POWER INC.

Inventor： APPLIED POWER INC. ,  STEBER, George, R. ,  KNUTSON, Dale A.

IPC: F16K31/00

CPC classification number: F16K31/005 ,  F02M59/466 ,  F02M59/468

Abstract: A piezo-electrically actuated fluid control valve (10) has a nozzle type seat (18), a magnet (22) opposite from the seat (18), and a piezo-electric actuator (20) in sheet form between the seat (18) and magnet (22). The actuator (20) includes a piezo-ceramic layer (50) laminated to an electrode sheet (48), so that the composite is parallel to the seat (18) and a surface of the magnet (22). The electrode sheet (20) has opposite edges (20A, 20B) which extent beyond the piezo-ceramic layer (51) and are clamped by the housing (12) of the valve (10) so that the center of the actuator (20) is positioned between the seat (18) and magnet (22). When an electric field is applied to the piezo-ceramic layer (50), the actuator (20) bows or dishes so as to displace from the seat (18) toward the magnet (22), and the magnetic field of the magnet (22) draws the actuator (20) further away from the seat (18), to increase the valve opening between the actuator (20) and the seat (18). The actuator (20) may be operated by a pulse width modulated or a proportional analog electrical signal, which may be applied in combination with the magnetic field to move the actuator (20), or if the magnetic field is induced by an electromagnet (22), electrical and magnetic control modes may be used alternatively.

Abstract translation: 压电电驱动流体控制阀（10）具有喷嘴型座（18），与座（18）相对的磁体（22）和片状形式的压电致动器（20），位于座（18） ）和磁体（22）。 致动器（20）包括层压到电极片（48）上的压电陶瓷层（50），使得复合材料平行于座（18）和磁体（22）的表面。 电极片（20）具有超过压电陶瓷层（51）的相对边缘（20A，20B），并被阀（10）的壳体（12）夹紧，使得致动器（20）的中心 位于座椅（18）和磁体（22）之间。 当向压电陶瓷层（50）施加电场时，致动器（20）将弓或碗盘从座椅（18）向磁体（22）移动，磁体（22）的磁场 ）致动器（20）进一步远离座椅（18），以增加致动器（20）和座椅（18）之间的阀门开口。 致动器（20）可以通过脉冲宽度调制或比例模拟电信号来操作，该信号可以与磁场组合施加以移动致动器（20），或者如果磁场由电磁体（22 ），可以替代地使用电和磁控制模式。

公开(公告)号：WO1995002760A1

公开(公告)日：1995-01-26

申请号：PCT/DE1994000695

申请日：1994-06-18

Applicant: ROBERT BOSCH GMBH ,  RODRIGUEZ-AMAYA, Nestor

Inventor： ROBERT BOSCH GMBH

IPC: F02M41/14

CPC classification number: F02M59/466 ,  F02M41/1411 ,  F02M59/366

Abstract: The invention concerns a fuel-injection pump of the distrubutor type with at least one piston (17) driven to execute a reciprocating action, a rotating distributor shaft (11) with a fuel-distribution bore (19) which, as the shaft rotates, connects the injection nozzle and the space (18) swept by the piston (17), plus a control valve (25) which meters the fuel to be injected. In order to ensure highly stable hydraulic flow on opening and closing the control valve (25), a low-pressure piston (43) is connected to the obturator element (35) of the control valve (25), the low-pressure piston being mounted so that is moves in the longitudinal direction inside a section (26) of the wall lying on the low-pressure side of the control valve (25) behind the outlet aperture of a relief bore (27). The external diameter of the low-pressure piston (43) is preferably close to the diameter of the obturator element surface which presses against the valve seat (34).

Abstract translation: 分配器型的燃料喷射泵包括至少一个在所述泵活塞（17）的往复行程运动驱动，通过其旋转时的分配器孔（19）（17）在泵活塞之间的连接限制了泵的工作空间中的旋转分配器轴（11）（18 制造）和一个注射喷嘴，和用于计量的燃料喷射量的开关阀（25）。 用于实现所述切换阀的打开和关闭期间高度稳定的液压的目的（25）被连接到连接到低压活塞（43）的开关阀（25）的阀件（35）设置在安全孔离开后的切换阀（25）的低压侧（27） 在一个壁部分（26）轴向可移动地引导。 低压活塞（43）的外径优选地接近于在相关联的阀座（34），所述阀构件（35）的座面的直径。

公开(公告)号：WO1995002123A1

公开(公告)日：1995-01-19

申请号：PCT/DE1994000693

申请日：1994-06-18

Applicant: ROBERT BOSCH GMBH ,  DRUMMER, Eugen ,  KRONBERGER, Maximilian ,  SATTMANN, Helmut ,  STRAHBERGER, Herbert ,  WEISZ, Gerhard

Inventor： ROBERT BOSCH GMBH

IPC: F02M57/02

CPC classification number: F02M59/366 ,  F02M57/02 ,  F02M59/466

Abstract: The proposal is for a fuel injection device with a reciprocating pump piston (8), the working chamber (13) of which is connected to an injection valve fitted directly on the pump housing. To control the quantity of fuel injected and the injection time there is a magnetic valve (31) arranged in a fuel channel (22) connected to the pump working chamber and used to fill and/or empty said chamber. To reduce the chambers to which high pressure is applied, the fuel channel (22) is arranged in such a way that it cuts the cylindrical drilling containing the pump working chamber and the magnetic valve is arranged at the entrance to this channel.

Abstract translation: 它提出了一种燃料喷射装置，包括一往复驱动的泵活塞（8），其由他的工作室（13）包围被连接到直接连接到所述泵壳体喷射器。 用于控制燃料喷射量和喷射正时的电磁阀（31）被提供，其设置在连接到泵的工作空间的燃料通道（22）的一部分用于填充和/或泵的工作空间的浮雕。 为了通过燃料通道（22）的高压室减小采取行动被布置成使得它相交气缸孔容纳所述泵的工作空间，并且电磁阀被布置在该通道的入口。

公开(公告)号：WO1994029578A1

公开(公告)日：1994-12-22

申请号：PCT/DK1993000400

申请日：1993-12-02

Applicant: MAN B & W DIESEL A/S ,  LINDQUIST, Henning ,  HANSEN, Erik, Rosenlund ,  HAMPEJS, Karel ,  GABRIEL, Stefan

Inventor： MAN B & W DIESEL A/S

IPC: F01L09/00

CPC classification number: F02M59/466 ,  F01L9/02 ,  F02M59/105 ,  Y10S251/905 ,  Y10T137/86614

Abstract: A spool valve (22) controls a hydraulic drive, such as a drive for a fuel pump (18) in an internal combustion engine, in which the hydraulic drive comprises a driving piston (34) journalled in a hydraulic cylinder (33) which through a flow passage (31) is in communication with the spool valve. The spool (38) may occupy a position in which the flow passage is connected with a high-pressure source (29) and another position in which the flow passage is connected with a low-pressure port (30). The spool is settable by means of a positioning means (23) electrically activated by a control unit (16) which determines intended positions of the spool and for a movable part (56) in the positioning member. The movable part has windings (51) positioned in a magnetic field in a slit (60) which is oblong in the longitudinal direction of the spool. A sensor (66) signalizes the actual position of the movable part to the control unit (16). The movable part and the spool (38) are attached to each other so that the spool valve follows the movements of the movable part (56). The control unit (16) supplies current to the windings if the actual position of the movable part differs from the intended position.

Abstract translation: 滑阀（22）控制液压驱动器，例如用于内燃机中的燃料泵（18）的驱动器，其中液压驱动器包括轴颈安装在液压缸（33）中的驱动活塞（34） 流动通道（31）与滑阀连通。 卷轴（38）可以占据流动通道与高压源（29）连接的位置，其中流动通道与低压端口（30）连接的位置。 阀芯可通过由控制单元（16）电激活的定位装置（23）来设定，该控制单元确定阀芯的预期位置和定位构件中的可移动部件（56）。 可移动部件具有位于沿着卷轴的长度方向长边的狭缝60中的磁场中的绕组（51）。 传感器（66）将可移动部件的实际位置信号通知给控制单元（16）。 可移动部分和卷轴（38）彼此附接，使得滑阀跟随可动部分（56）的移动。 如果可移动部件的实际位置与预期位置不同，则控制单元（16）向绕组提供电流。

公开(公告)号：WO1993021439A1

公开(公告)日：1993-10-28

申请号：PCT/GB1993000659

申请日：1993-03-30

Applicant: LUCAS INDUSTRIES PUBLIC LIMITED COMPANY ,  WILLIAMS, Anthony, John

Inventor： LUCAS INDUSTRIES PUBLIC LIMITED COMPANY

IPC: F02M57/02

CPC classification number: F02M59/466 ,  F02M57/02 ,  F02M59/366 ,  F02M59/46

Abstract: A pump/injector includes a pumping plunger (13A) movable inwardly in a bore to displace fuel from a pumping chamber (16) through an outlet. A fuel flow path into the pumping chamber includes an inlet port (20) connected to an annulus (20A) in the surrounding body (11A) and a passage (29, 30) in the plunger communicating with the pumping chamber. The port and passage are brought into communication towards the end of the outward movement of the plunger to allow fuel flow into the pumping chamber and the fuel flow path includes a non-return valve (28) which closes to prevent escape of fuel from the pumping chamber along the flow path when inward movement of the plunger takes place and before the port and passage move out of communication.

Abstract translation: 泵/注射器包括在孔中向内移动的泵送柱塞（13A），以将来自泵送室（16）的燃料移动通过出口。 进入泵送室的燃料流动路径包括连接到周围主体（11A）中的环形空间（20A）的入口端口（20）和与泵送室连通的柱塞中的通道（29,30）。 端口和通道在柱塞的向外运动的结束时被连通，以允许燃料流入泵送室，并且燃料流动路径包括闭合的止回阀（28），以防止燃料从泵送中逸出 在柱塞的向内运动发生并且在端口和通道移出通信之前沿着流动路径的腔室。