公开(公告)号：US07083113B2

公开(公告)日：2006-08-01

申请号：US10503445

申请日：2003-04-09

Applicant: Martin Kropp ,  Hans-Christoph Magel ,  Manfred Mack ,  Christian Grimminger

Inventor： Martin Kropp ,  Hans-Christoph Magel ,  Manfred Mack ,  Christian Grimminger

IPC: F02M47/02

CPC classification number: F02M59/105 ,  F02M57/025 ,  F02M61/205 ,  F02M2200/24 ,  F02M2200/304

Abstract: A fuel injection apparatus for injecting fuel into the combustion chambers of an internal combustion engine. includes a high pressure accumulator, a pressure booster, and a metering valve. The pressure booster includes a working chamber and a control chamber that are separated from each other by an axially movable piston. A pressure change in the control chamber produces a pressure change in a compression chamber that acts on a nozzle chamber via a fuel inlet. The nozzle chamber encompasses a nozzle needle. A nozzle spring chamber that acts on the injection valve element can be filled on the high-pressure side via a line that leads from the compression chamber and contains an inlet throttle restriction. On the outlet side, the nozzle spring chamber is connected to a chamber of the pressure booster via a line that contains an outlet throttle restriction.

Abstract translation: 一种用于将燃料喷射到内燃机的燃烧室中的燃料喷射装置。 包括高压蓄能器，增压器和计量阀。 增压器包括通过轴向移动的活塞彼此分离的工作室和控制室。 控制室中的压力变化在通过燃料入口作用在喷嘴室上的压缩室中产生压力变化。 喷嘴室包括喷嘴针。 作用于喷射阀元件的喷嘴弹簧室可以通过从压缩室引出的管线填充在高压侧，并且包含入口节流阀限制。 在出口侧，喷嘴弹簧室通过包含出口节流阀限制的管路连接到增压器的室。

公开(公告)号：US06895935B2

公开(公告)日：2005-05-24

申请号：US10343217

申请日：2002-05-18

Applicant: Wolfgang Braun ,  Bernd Mahr ,  Martin Kropp ,  Hans-Christoph Magel

Inventor： Wolfgang Braun ,  Bernd Mahr ,  Martin Kropp ,  Hans-Christoph Magel

IPC: F02M47/00 ,  F02M45/12 ,  F02M47/02 ,  F02M57/02 ,  F02M33/04

CPC classification number: F02M45/12 ,  F02M47/027 ,  F02M57/025

Abstract: A fuel injection system includes a pressure booster having a displaceable piston which can be subjected to pressure via a pressure booster chamber on the low-pressure side for compressing the fuel in a pressure booster chamber on the high-pressure side to be delivered to an injector. The stroke of the piston is controllable by the pressure in a differential chamber of the pressure booster and is used to vary the fuel pressure delivered to the injector. Means for continuously variable definition of the inlet cross section to the pressure booster chamber of the pressure booster on the low-pressure side or of the outlet cross section from the differential chamber of the pressure booster are provided.

Abstract translation: 燃料喷射系统包括具有可移动活塞的增压器，其可经由低压侧的增压室经受压力，用于压缩高压侧的增压室中的燃料以被输送到喷射器 。 活塞的行程可以通过增压器的差速器室中的压力来控制，并且用于改变输送到喷射器的燃料压力。 提供了用于连续地将来自压力增压器的差压室的低压侧或出口横截面上的增压器的增压室的入口横截面变化的装置。

公开(公告)号：US06718947B1

公开(公告)日：2004-04-13

申请号：US09642151

申请日：2000-08-21

Applicant: Bernd Mahr ,  Martin Kropp ,  Hans-Christoph Magel ,  Wolfgang Otterbach

Inventor： Bernd Mahr ,  Martin Kropp ,  Hans-Christoph Magel ,  Wolfgang Otterbach

IPC: F02M4100

CPC classification number: F02M63/0007 ,  F02M41/06 ,  F02M41/16 ,  F02M45/02 ,  F02M45/04 ,  F02M47/027 ,  F02M59/105 ,  F02M63/0003 ,  F02M63/0225 ,  F02M2200/21 ,  F02M2200/40

Abstract: A method for injecting fuel at at least two different high fuel pressures via injectors into the combustion chamber of an internal combustion engine. The fuel injection at the higher fuel pressure takes place by pressure-controlled features, during the fuel injection, at least one lower fuel pressure is generated. To that end, a fuel injection system has one local diversion unit for each injector, and the diversion unit can be activated or deactivated via a valve unit.

Abstract translation: 一种通过喷射器将至少两种不同的高燃料压力的燃料喷射到内燃机的燃烧室中的方法。 在较高燃料压力下的燃料喷射通过压力控制特征进行，在燃料喷射期间，产生至少一个较低的燃料压力。 为此，燃料喷射系统对于每个喷射器具有一个局部分流单元，并且分流单元可以通过阀单元被激活或去激活。

公开(公告)号：US06532938B1

公开(公告)日：2003-03-18

申请号：US09807374

申请日：2001-05-21

Applicant: Bernd Mahr ,  Martin Kropp ,  Hans-Christoph Magel ,  Wolfgang Otterbach

Inventor： Bernd Mahr ,  Martin Kropp ,  Hans-Christoph Magel ,  Wolfgang Otterbach

IPC: F02M6300

CPC classification number: F02M63/06 ,  F02M45/04 ,  F02M55/002 ,  F02M61/08 ,  F02M61/205 ,  F02M63/0007

Abstract: A fuel injection system includes a pressure storage chamber and one injector assigned to each cylinder, which injector can be connected to the pressure storage chamber via a pressure line that includes a metering valve. Using a single 2/2-way valve as a metering valve per cylinder makes for a more-economical manufacture of a fuel system, especially for small engines. The fuel injection is done under pressure control.

Abstract translation: 燃料喷射系统包括压力存储室和分配给每个气缸的一个喷射器，该喷射器可以经由包括计量阀的压力管线连接到压力存储室。 使用单个2/2阀作为每个气缸的计量阀，可以更经济地制造燃油系统，特别是对于小型发动机。 燃油喷射在压力控制下完成。

公开(公告)号：US06520152B1

公开(公告)日：2003-02-18

申请号：US09830014

申请日：2001-06-04

Applicant: Bernd Mahr ,  Martin Kropp ,  Hans-Christoph Magel ,  Wolfgang Otterbach

Inventor： Bernd Mahr ,  Martin Kropp ,  Hans-Christoph Magel ,  Wolfgang Otterbach

IPC: F02M6302

CPC classification number: F02M63/0007 ,  F02D2041/3881 ,  F02M41/16 ,  F02M45/02 ,  F02M45/04 ,  F02M47/027 ,  F02M63/0225 ,  F02M2200/21 ,  F02M2200/40

Abstract: In a fuel injection system for an internal combustion engine, in which fuel can be injected at least two different, high fuel pressures, via injectors, into the combustion chamber of the engine, having a central first pressure reservoir for the higher fuel pressure and a central second pressure reservoir, supplied from the first pressure reservoir, in which by regulation of its fuel delivery, the lower fuel pressure is maintained, and having a valve unit for switchover between the higher and the lower fuel, the valve unit for switchover between the higher and the lower fuel is provided locally for each injector. With this injection system, improved metering of the lower fuel pressure is possible.

Abstract translation: 在用于内燃机的燃料喷射系统中，其中燃料可以通过喷射器至少两个不同的高燃料压力喷射到发动机的燃烧室中，该燃烧室具有用于较高燃料压力的中心第一压力储存器和 中央第二压力储存器，其由第一压力储存器供应，其中通过调节其燃料输送，维持较低的燃料压力，并具有用于在较高和较低燃料之间切换的阀单元，用于在 每个喷射器局部设置较低的燃料。 使用这种注射系统，可以改善燃料压力较低的计量。

公开(公告)号：US06491017B1

公开(公告)日：2002-12-10

申请号：US09807874

申请日：2001-07-27

Applicant: Bernd Mahr ,  Martin Kropp ,  Hans-Christoph Magel ,  Wolfgang Otterbach

Inventor： Bernd Mahr ,  Martin Kropp ,  Hans-Christoph Magel ,  Wolfgang Otterbach

IPC: F02B310

CPC classification number: F02M45/00 ,  F02M41/06 ,  F02M41/16 ,  F02M45/02 ,  F02M45/04 ,  F02M47/027 ,  F02M59/105 ,  F02M63/0007 ,  F02M63/0225 ,  F02M2200/21

Abstract: In a method for injecting fuel at at least two differently high fuel pressures via injectors into the combustion chamber of an internal combustion engine, the fuel injection at the lower fuel pressure takes place under stroke control, and the fuel injection at the higher fuel pressure takes place under pressure control. For a pre- and/or post-injection and/or a boot injection at the lower fuel pressure, the control chamber and via a check valve the nozzle chamber as well are connected to a low-pressure fuel supply, and that for a main injection at the higher fuel pressure, the nozzle chamber is connected to the high-pressure fuel supply.

Abstract translation: 在通过喷射器将至少两个不同高的燃料压力的燃料喷射到内燃机的燃烧室中的方法中，在较低燃料压力下的燃料喷射在行程控制下发生，并且在较高燃料压力下的燃料喷射 在压力控制下。 对于在较低燃料压力下的预喷射和/或喷射后和/或引导喷射，控制室和通过止回阀，喷嘴腔室也连接到低压燃料供应器，而对于主燃料 在较高燃料压力下的喷射，喷嘴室连接到高压燃料供应。

公开(公告)号：US07093582B2

公开(公告)日：2006-08-22

申请号：US10527582

申请日：2003-06-30

Applicant: Hans-Christoph Magel ,  Martin Kropp

Inventor： Hans-Christoph Magel ,  Martin Kropp

IPC: F02M37/04

CPC classification number: F02M59/105 ,  F02M47/027 ,  F02M57/025 ,  F02M61/165 ,  F02M63/0015 ,  F02M63/0043

Abstract: A fuel injection system for internal combustion engines, having a fuel injector that can be acted upon by a high-pressure fuel source includes a pressure booster, which contains a movable boosting element dividing a work chamber which can be made to communicate with the high-pressure source via a high-pressure line from a high-pressure chamber that acts on the fuel injector. The high-pressure from chamber is variable by filling and evacuating a differential pressure chamber of the pressure booster. A filter element is received in a line portion that branches off from the high-pressure line and is upstream of flow connections for filling the differential and high pressure chambers.

公开(公告)号：US06814057B2

公开(公告)日：2004-11-09

申请号：US10276148

申请日：2003-05-19

Applicant: Bernd Mahr ,  Martin Kropp ,  Hans-Christoph Magel

Inventor： Bernd Mahr ,  Martin Kropp ,  Hans-Christoph Magel

IPC: F02M3304

CPC classification number: F02M63/0225 ,  F02M47/027 ,  F02M47/043 ,  F02M57/025 ,  F02M59/105

Abstract: A fuel injection system for internal combustion engines has at least one stroke-controlled injector. A pressure booster that has a movable piston is connected between the at least one injector and a high-pressure working medium source. The movable piston divides a primary chamber, which can be connected to the high-pressure working medium source, from a pressure chamber that communicates with the at least one injector and is filled with fuel. The pressure booster generates a first fuel system pressure in the injector, which is used for the injection. The fuel injection system has means for furnishing a further, second fuel system pressure, and these means can be used for injection without activating the pressure booster.

Abstract translation: 用于内燃机的燃料喷射系统具有至少一个行程控制的喷射器。 具有可移动活塞的增压器连接在至少一个喷射器和高压工作介质源之间。 可移动活塞将可连接到高压工作介质源的主室从与至少一个喷射器连通并且被燃料填充的压力室分开。 增压器在喷射器中产生用于喷射的第一燃料系统压力。 燃料喷射系统具有用于提供另外的第二燃料系统压力的装置，并且这些装置可用于注射而不启动增压器。

公开(公告)号：US06725840B1

公开(公告)日：2004-04-27

申请号：US09830013

申请日：2001-07-27

Applicant: Bernd Mahr ,  Martin Kropp ,  Hans-Christoph Magel ,  Wolfgang Otterbach

Inventor： Bernd Mahr ,  Martin Kropp ,  Hans-Christoph Magel ,  Wolfgang Otterbach

IPC: F02M4100

CPC classification number: F02M45/00 ,  F02M47/027 ,  F02M57/023 ,  F02M63/0007 ,  F02M2200/21 ,  F02M2200/40

Abstract: A fuel injection system has one or more unit fuel injectors or pump-line-nozzle units, corresponding in number to the cylinders, for compressing the fuel. The fuel injection system includes means for generating two different injection pressures during the injection and at least one valve for controlling the injection with a cross sectional control. The fuel injection with the aid of the unit fuel injector or a pump-line-nozzle unit can be achieved over a wide rpm range with great precision.

Abstract translation: 燃料喷射系统具有一个或多个单元燃料喷射器或泵线喷嘴单元，其数量对应于气缸，用于压缩燃料。 燃料喷射系统包括用于在喷射期间产生两个不同喷射压力的装置和用于通过横截面控制来控制喷射的至少一个阀。 借助于单元燃油喷射器或泵线喷嘴单元的燃料喷射可以在较大的转速范围内以高精度实现。

公开(公告)号：US06655355B2

公开(公告)日：2003-12-02

申请号：US10028798

申请日：2001-12-28

Applicant: Martin Kropp ,  Hans-Christoph Magel

Inventor： Martin Kropp ,  Hans-Christoph Magel

IPC: F02M3704

CPC classification number: F02M63/0007 ,  F02M57/025 ,  F02M61/205

Abstract: In a pressure-controlled fuel injection system, a nozzle needle is subjected to pressure in the closing direction by a nozzle spring. A nozzle chamber for opening the nozzle needle is connectable to a pressure reservoir via a pressure line. A hydraulic device is embodied to reinforce the closing performance of the nozzle needle. As a result, a faster closing performance of the nozzle needle is achieved.