-
公开(公告)号：US6155532A
公开(公告)日：2000-12-05
申请号：US165634
申请日：1998-10-02
CPC分类号： F02M47/027 , F02M2200/21 , F02M2200/706 , F02M2547/003
摘要： A valve for controlling fluids, which is provided with a fluid-filled coupling chamber that is disposed between an actuator piston of a piezoelectric actuator and a piston that actuates a valve member. In order to compensate for a leakage in the coupling chamber that is intermittently under high pressure during a switching procedure, a filling valve is provided that is disposed radially on the coupling chamber, but outside the chamber, and this valve monitors an inflow from an inlet conduit that is under ambient pressure in the valve. In this manner, on the one hand, the clearance volume produced by the attachment of the filling valve is very small and on the other hand, the filling valve is independent of the accelerated movements of the pistons, i.e., independent of their acceleration forces. The valve is designated for use in fuel injection devices for internal combustion engines of motor vehicles.
摘要翻译： 一种用于控制流体的阀，其设置有设置在压电致动器的致动器活塞和致动阀构件的活塞之间的流体填充的联接室。 为了补偿在切换过程中在高压下间歇地连接的联接室中的泄漏，设置有径向设置在联接室上但在室外的填充阀，并且该阀监视来自入口的流入 在阀门处于环境压力下的管道。 以这种方式，一方面，通过安装充填阀产生的间隙体积非常小，另一方面，填充阀独立于活塞的加速运动，即不依赖于它们的加速力。 该阀被指定用于机动车内燃机的燃料喷射装置。
-
公开(公告)号：US06172445B2
公开(公告)日：2001-01-09
申请号：US09117891
申请日：1999-02-05
IPC分类号： H01L4108
CPC分类号： F16F1/025 , F02M47/027 , F02M51/005 , F02M51/0603 , F02M63/0026 , F02M2200/26 , F16K31/004 , F16K31/007 , H01L41/0536 , H01L41/083
摘要： A piezoelectric actuator intended for instance for actuating injection valves in internal combustion engines of motor vehicles is protected against destructive tensile strains in that resilient prestressing elements that subject the piezoelectric body to precompression are provided for the piezoelectric body of the actuator.
摘要翻译： 旨在例如用于在机动车辆的内燃机中致动喷射阀的压电致动器被保护以防止破坏性的拉伸应变，因为对于致动器的压电体提供使压电体预压缩的弹性预应力元件。
-
公开(公告)号：US06168133A
公开(公告)日：2001-01-02
申请号：US09319168
申请日：1999-06-02
IPC分类号： F16K31124
CPC分类号： F02M63/0026 , F02M47/027 , F02M63/0035 , F02M63/0043 , F02M63/0057 , F02M63/0225 , F02M2200/704 , F02M2200/705 , F02M2547/003
摘要： A valve for controlling liquids which for its actuation is provided with a liquid-filled coupling chamber, which is disposed between an actuator piston of a piezoelectric actuator and a piston that actuates a valve member. To compensate for liquid losses suffered by the coupling chamber, which is briefly at high in each work cycle, the pressure difference that exists during the return stroke of the actuator piston between the coupling chamber and the opposite sides of the actuator piston and of the that actuates the valve member that are remote from the coupling chamber is utilized to achieve refilling in valveless fashion along gaps. The valve is used for use in fuel injection systems for internal combustion engines of motor vehicles.
摘要翻译： 用于控制用于其致动的液体的阀设置有液体填充的联接室，该液体填充的联接室设置在压电致动器的致动器活塞和致动阀构件的活塞之间。 为了补偿每个工作循环中短暂高度的联接室所遭受的液体损失，在致动器活塞在致动器活塞在致动器活塞与致动器活塞的相对侧之间的返回冲程期间存在的压力差 驱动离开联接室的阀构件用于实现沿着间隙以无瓣方式的再填充。 该阀用于汽车内燃机的燃油喷射系统。
-
公开(公告)号：US6085719A
公开(公告)日：2000-07-11
申请号：US289617
申请日：1999-04-12
IPC分类号： F02M45/08 , F02M47/00 , F02M47/02 , F02M51/00 , F02M59/46 , F02M61/20 , F02B3/00 , F02M41/00
CPC分类号： F02M63/0056 , F02M45/08 , F02M47/027 , F02M63/0026 , F02M63/0078
摘要： A fuel injection system for internal combustion engines is proposed which supplies fuel injection valves with fuel from a high-pressure fuel source, under the control of a control unit. The fuel injection valve has an injection valve member, whose opening or closing position is determined by a pressure that acts upon this injection valve member and that is set in a control chamber. To that end, to perform an injection, the pressure in the control chamber must be relieved; which is achieved with a control valve that opens two different outflow cross sections of an outflow conduit of the control chamber in succession. This makes it possible to accomplish an adapted opening of the fuel injection valve member for a preinjection and for a main injection.
摘要翻译： 提出了一种用于内燃机的燃料喷射系统，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，其打开或关闭位置由作用在该喷射阀构件上并被设置在控制室中的压力决定。 为此，要进行注射，必须缓解控制室内的压力; 其通过控制阀连续打开控制室的流出管道的两个不同的流出横截面来实现。 这使得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：US5915361A
公开(公告)日：1999-06-29
申请号：US169945
申请日：1998-10-13
CPC分类号： F02M63/0045 , F02M47/027 , F02M63/0026
摘要： A fuel device which has a high-pressure fuel source from which a number of fuel injection valves, which are each controlled by a 3-way valve, are supplied with fuel. This 3-way valve has a valve member with a closing body provided with sealing faces that cooperates with valve seats and in addition, in its closed positions, defines pressure-exposed surfaces that produce resulting forces that are active in the respective closed position of the closing body.
摘要翻译： 具有高压燃料源的燃料装置由多个由三通阀控制的燃料喷射阀供给燃料。 该三通阀具有阀构件，该阀构件具有密封面，密封面与阀座配合，另外在其闭合位置限定压力暴露表面，该表面产生在相应闭合位置中有效的力 关闭体。
-
公开(公告)号：US06419164B1
公开(公告)日：2002-07-16
申请号：US09673358
申请日：2000-12-29
IPC分类号： F02M4702
CPC分类号： F02M51/0603 , F02M47/02
摘要： The invention relates to a fuel injection valve that has a valve member which can control a fuel outlet opening. The valve member has a first opening surface, which defines a first opening pressure chamber in the opening direction of the valve member, wherein the first opening pressure chamber is connected to a high-pressure fuel source and the pressure in the first opening pressure chamber produces a first opening force against the first opening surface. The valve member also has a first closing surface, which defines a first closing pressure chamber in the closing direction of the valve member, wherein the first closing pressure chamber is connected to the high-pressure fuel source and the pressure in the first closing pressure chamber produces a first closing force against the first closing surface.
摘要翻译： 本发明涉及一种燃料喷射阀，其具有能够控制燃料出口的阀构件。 阀构件具有第一开口表面，其在阀构件的打开方向上限定第一开启压力室，其中第一开启压力室连接到高压燃料源，并且第一开启压力室中的压力产生 抵抗第一开口表面的第一打开力。 阀构件还具有第一闭合表面，其在阀构件的关闭方向上限定第一闭合压力室，其中第一闭合压力室连接到高压燃料源，并且第一闭合压力室 产生抵抗第一关闭表面的第一关闭力。
-
公开(公告)号：US06196193B1
公开(公告)日：2001-03-06
申请号：US09254632
申请日：1999-05-28
IPC分类号： F02M4100
CPC分类号： F02M63/0045 , F02D41/2096 , F02M45/08 , F02M47/027 , F02M63/0026
摘要： A fuel device including a high-pressure fuel source from which fuel is supplied to fuel injection valves. The fuel injection valves are controlled with the aid of a valve that is driven by a piezoelectric or magnetostrictive drive mechanism. With the aid of this drive mechanism, a 3-way valve having a closing body can be adjusted in an intermediary position in which a control chamber, by way of which a hydraulic force can be exerted in the closing direction on a valve closing member of the injection valve, can simultaneously be connected to a high-pressure fuel source and a relief chamber in order to adjust a control pressure that lies between the high pressure of the high-pressure source and a relief pressure. In this manner, a partial opening of the injection valve member of the injection valve can be adjusted in order to introduce a reduced injection quantity into the combustion chamber of the internal combustion engine.
摘要翻译： 一种燃料装置，包括向燃料喷射阀供给燃料的高压燃料源。 燃料喷射阀借助于由压电或磁致伸缩驱动机构驱动的阀来控制。 借助该驱动机构，可以在中间位置调节具有闭合体的三通阀，其中控制室通过该控制室可以在闭合方向上向阀关闭件施加液压力 喷射阀可以同时连接到高压燃料源和释放室，以便调节位于高压源的高压和安全压力之间的控制压力。 以这种方式，可以调节喷射阀的喷射阀构件的部分打开，以将减少的喷射量引入内燃机的燃烧室。
-
公开(公告)号：US6076800A
公开(公告)日：2000-06-20
申请号：US180023
申请日：1998-10-30
CPC分类号： F02M63/0045 , F02M47/025 , F02M47/027 , F02M63/0026 , F02M2200/704 , F02M2547/003
摘要： A valve for controlling fluids, in which the valve member is adjusted by means of an actuating piston, which, together with a piezoelectric actuator piston, encloses a pressure chamber. In addition, the actuator piston and an affiliated piezoelectric stack are disposed in parallel radially next to the actuating piston, wherein upon excitation of the piezoelectric stack or adjustment of the actuator piston, the actuating piston executes a motion counter to the adjusting movement, and with its valve member, opens a relief bore.
摘要翻译： PCT No.PCT / DE97 / 02709 Sec。 371日期：1998年10月30日 102（e）日期1998年10月30日PCT 1997年11月19日PCT PCT。 公开号WO98 / 40623 日期1998年9月17日用于控制流体的阀，其中阀构件通过致动活塞进行调节，该致动活塞与压电致动器活塞一起围绕压力室。 此外，致动器活塞和附属压电叠层被放置在致动活塞的旁边并排设置，其中当激发压电叠层或致动器活塞的调节时，致动活塞执行与调节运动相反的运动，并且与 其阀构件打开释放孔。
-
公开(公告)号：US06290204B1
公开(公告)日：2001-09-18
申请号：US09319118
申请日：1999-07-08
IPC分类号： F02M5100
CPC分类号： F16K31/007 , F02M63/0026 , F02M2200/703
摘要： A valve for controlling liquids for its actuation is provided with a liquid-filled coupling chamber, which is disposed between a step-up piston, actuatable by a piezoelectric actuator, and a piston that actuates a valve member. To compensate for leakage in the coupling chamber that is at high pressure, a filling valve is provided. The filling valve is disposed between the step-up piston and the piezoelectric actuator. Upon each return stroke of the piezoelectric actuator, the step-up piston follows the piezoelectric actuator with a time lag, so that the filling valve opens briefly and allows filling of the coupling chamber. The valves intended for use in fuel injection systems for internal combustion engines of motor vehicles.
摘要翻译： 用于控制其致动液体的阀设置有液体填充的联接室，其设置在可由压电致动器致动的升压活塞和致动阀构件的活塞之间。 为了补偿处于高压的联接室中的泄漏，提供了一个填充阀。 填充阀设置在升压活塞和压电致动器之间。 在压电致动器的每次返回行程时，升压活塞以时间滞后于压电致动器，使得充填阀短暂打开并允许填充联接室。 用于汽车内燃机燃油喷射系统的阀门。
-
公开(公告)号：US06448692B1
公开(公告)日：2002-09-10
申请号：US09520017
申请日：2000-03-06
IPC分类号： H01L4104
CPC分类号： H01L41/083 , H01L41/053
摘要： A piezoelectric actuator for actuating control valves or injection valves in motor vehicles. The actuator includes an actuator body in the form of a multilayer laminate of stacked layers of piezoelectric material and intervening metallic or electrically conductive layers acting as electrodes. One bottom plate toward the valve and an opposed top plate are mounted on each of the end faces of the actuator body. The piezoelectric actuator is characterized in that the actuator body on each of its end faces has one piezoelectrically inactive cover layer and that the connection faces of the bottom plate and the top plate which adjoin the end faces of the actuator body have fixation elements that grip the cover layers, for at least nonpositive fixation of the cover layers of the actuator body.
摘要翻译： 用于在机动车辆中起动控制阀或喷射阀的压电致动器。 致动器包括致动器本体，其为压电材料层叠层和作为电极的中间金属或导电层的多层叠层形式。 朝向阀门的一个底板和相对的顶板安装在致动器主体的每个端面上。 压电致动器的特征在于，其每个端面上的致动器主体具有一个压电非活性覆盖层，并且底板和顶板的与致动器主体的端面相邻的连接面具有固定元件， 覆盖层，用于致动器主体的覆盖层的至少非正极固定。
-
-
-
-
-
-
-
-
-
搜索结果
225 条记录 (耗时 0.024 秒)
