公开(公告)号：US06883725B2

公开(公告)日：2005-04-26

申请号：US10363961

申请日：2002-05-07

申请人： Günther Hohl ,  Michael Hübel

发明人： Günther Hohl ,  Michael Hübel

IPC分类号： F02M51/00 ,  F02M51/06 ,  F02M61/08 ,  F02M61/16 ,  F02M63/00 ,  B05B1/08

CPC分类号： F02M61/08 ,  F02M51/0603 ,  F02M61/167 ,  F02M2200/16

摘要： A fuel injector, in particular a fuel injector for fuel-injection systems of internal combustion engines, has a piezoelectric or magnetostrictive actuator which actuates, via a hydraulic coupler a valve-closure member formed on a valve needle, the valve-closure member cooperating with a valve-seat surface to form a sealing seat. The coupler is made up of a pressure cylinder, a pressure-cylinder support joined to the pressure cylinder, and a pressure piston guided in this pressure cylinder, which form a pressure chamber; and of a coupler spring element between the pressure piston and the pressure cylinder which generates a prestressing force that forces the pressure piston out of the pressure cylinder.

摘要翻译： 燃料喷射器，特别是用于内燃机的燃料喷射系统的燃料喷射器具有压电或磁致伸缩致动器，其通过液压耦合器致动形成在阀针上的阀关闭件，所述阀关闭件与 阀座表面形成密封座。 联接器由压力缸，连接到压力缸的压力缸支架和在该压力缸中引导的压力活塞组成，形成压力室; 以及在压力活塞和压力缸之间的耦合器弹簧元件，其产生迫使压力活塞离开压力缸的预应力。

公开(公告)号：US07581686B2

公开(公告)日：2009-09-01

申请号：US10450963

申请日：2002-08-22

申请人： Volker Holzgrefe ,  Günther Hohl ,  Michael Hübel ,  Jürgen Stein

发明人： Volker Holzgrefe ,  Günther Hohl ,  Michael Hübel ,  Jürgen Stein

IPC分类号： B05B1/32

CPC分类号： F02M61/08 ,  F02M51/0603 ,  F02M61/18

摘要： A fuel injector for the injection of fuel into the combustion chamber of an internal combustion engine includes a valve needle guided in a nozzle body, the valve needle being actuable by an actuator and acted upon by a restoring spring in such a manner that a valve-closure member which is in operative connection to the valve needle is retained in sealing contact against a valve-seat surface. Formed at a downstream-side end of the fuel injector is a projection which projects beyond the valve-closure member of the fuel injector.

摘要翻译： 用于将燃料喷射到内燃机的燃烧室中的燃料喷射器包括在喷嘴体中引导的阀针，阀针可由致动器致动并且由恢复弹簧作用， 与阀针有效连接的关闭构件保持与阀座表面的密封接触。 在燃料喷射器的下游侧端部处形成有突出部，其突出超过燃料喷射器的阀关闭构件。

公开(公告)号：US06892971B2

公开(公告)日：2005-05-17

申请号：US10381622

申请日：2002-05-16

申请人： Franz Rieger ,  Fevzi Yildirim ,  Andreas Eichendorf ,  Günther Hohl ,  Michael Hübel ,  Jürgen Stein

发明人： Franz Rieger ,  Fevzi Yildirim ,  Andreas Eichendorf ,  Günther Hohl ,  Michael Hübel ,  Jürgen Stein

IPC分类号： F02D41/20 ,  F02M51/00 ,  F02M51/06 ,  B05B1/30

CPC分类号： F02M51/0685 ,  F02D41/20 ,  F02D2041/2079 ,  F02M51/0617

摘要： A fuel injector, in particular a fuel injector for fuel-injection systems of internal combustion engines, includes a first magnetic coil cooperating with a first armature, a second magnetic coil cooperating with a second armature, and a valve needle which is in force-locking connection with the first armature via a first flange and to the second armature via a second flange, to actuate a valve-closure member. A restoring spring acts upon the valve needle in a closing direction of the fuel injector. A first positioning spring, situated between the first flange and the first armature, acts upon the first armature in the closing direction of the fuel injector, while a second positioning spring, situated between the second flange and the second armature, acts upon the second armature in an opening direction of the fuel injector.

摘要翻译： 燃料喷射器，特别是用于内燃机燃料喷射系统的燃料喷射器，包括与第一电枢配合的第一电磁线圈，与第二电枢配合的第二电磁线圈，以及与第二电枢相配合的阀针 通过第一凸缘与第一电枢连接，并通过第二凸缘连接到第二电枢，以致动阀闭合构件。 复原弹簧沿着燃料喷射器的关闭方向作用在阀针上。 位于第一凸缘和第一电枢之间的第一定位弹簧在燃料喷射器的关闭方向上作用在第一电枢上，而位于第二凸缘和第二电枢之间的第二定位弹簧作用在第二电枢上 在燃料喷射器的打开方向上。

公开(公告)号：US07066399B2

公开(公告)日：2006-06-27

申请号：US10433347

申请日：2002-08-22

申请人： Günther Hohl

发明人： Günther Hohl

IPC分类号： B05B1/08 ,  F02M59/00 ,  F16K31/00

CPC分类号： F02M61/08 ,  F02M51/0603 ,  F02M61/167 ,  F02M2200/16 ,  F02M2200/703 ,  F02M2200/707

摘要： A fuel injector for fuel-injection systems of internal combustion engines having a piezoelectric or magnetostrictive actuator, includes a hydraulic coupler which actuates a valve-closure member (3) formed on a valve needle. The valve-closure member cooperates with a valve-seat surface to form a valve-sealing seat. The coupler includes a master piston and a slave piston which are guided in bores of a guide sleeve. Located between the master piston and the slave piston is a pressure chamber filled with a hydraulic fluid. A corrugated tube is positioned around the guide sleeve which is sealingly joined to the master piston at one end and to the slave piston at the other end, and which seals a supply chamber for the hydraulic fluid from a surrounding fuel chamber.

摘要翻译： 具有压电或磁致伸缩致动器的内燃机的燃料喷射系统的燃料喷射器包括驱动形成在阀针上的阀关闭件（3）的液压联接器。 阀关闭构件与阀座表面协作以形成阀密封座。 联接器包括在引导套筒的孔中引导的主活塞和从动活塞。 位于主活塞和从动活塞之间的是具有液压流体的压力室。 波纹管围绕引导套筒定位，该引导套筒在一端处密封地连接到主活塞并且在另一端处与从动活塞密封地接合，并且从周围的燃料室密封用于液压流体的供给室。