公开(公告)号：US20240295206A1

公开(公告)日：2024-09-05

申请号：US18116418

申请日：2023-03-02

Applicant: Caterpillar Inc.

Inventor： Kenth I. Svensson

IPC: F02M61/16 ,  F02M51/06

CPC classification number: F02M61/167 ,  F02M51/061

Abstract: A boot in a boot assembly in a fuel system includes an elongate boot body defining a longitudinal axis and having an inner boot surface. An injector portion of the boot has a window formed therein receiving an electrical connector of a fuel injector. The injector portion also includes a plurality of radially inward standoff protrusions in contact with the fuel injector to maintain an air gap clearance between an inner surface of the boot and the fuel injector.

公开(公告)号：US11959445B1

公开(公告)日：2024-04-16

申请号：US18123149

申请日：2023-03-17

Applicant: Solar Turbines Incorporated

Inventor： Michael A. Lane ,  Ricardo Aleman ,  Robert Fanella

IPC: F02M61/16

CPC classification number: F02M61/167 ,  F02M2200/03 ,  F02M2200/85

Abstract: In a fuel injector, the temperature differential between a distributor plate, through which relatively cool fuel passes, and the manifold to which the distributor plate is bonded causes stresses and strains that can reduce the durability and longevity of the fuel injector. In disclosed embodiments, the distributor plate is bonded to an outer arm and inner arm. These arms act as levers to take up the stresses and strains caused by the temperature differential, thereby increasing the durability and longevity of the fuel injector.

公开(公告)号：US09856843B2

公开(公告)日：2018-01-02

申请号：US14414686

申请日：2013-07-04

Applicant: Continental Automotive GmbH

Inventor： Willibald Schuerz

IPC: F02M51/06 ,  F02M61/10 ,  F02M61/16

CPC classification number: F02M51/0603 ,  F02M61/10 ,  F02M61/167 ,  F02M2200/703 ,  F02M2200/708

Abstract: A fluid injector has a solid state actuator and a control piston unit arranged in a recess of an injector body. A transmission pin mechanically couples the actuator to the control piston unit. A first control chamber, coupled hydraulically to a second control chamber, is delimited by the control piston unit and the injector body. A control piston of the control piston unit has an end surface that is coupled to the transmission pin and which delimits the first control chamber. The control piston unit has a control sleeve arranged coaxially with the control piston and an inwardly directed projection that provides a driving coupling between the control piston and the control sleeve after a predefined control stroke of the control piston. The driving coupling results in the control piston influencing a free volume of the first control chamber during an axial movement of the control piston.

公开(公告)号：US09714633B2

公开(公告)日：2017-07-25

申请号：US14373656

申请日：2013-01-24

Applicant: DELPHI INTERNATIONAL OPERATIONS LUXEMBOURG, S.A.R.L.

Inventor： Richard Denis Jacques Alain Enters ,  David Bonneau ,  Thierry Thibault ,  Jean-Christophe Oge ,  Philippe Legrand

IPC: F02M63/00 ,  F02M61/04 ,  F02M47/02 ,  F02M61/12 ,  F02M61/16

CPC classification number: F02M61/042 ,  F02M47/027 ,  F02M61/12 ,  F02M61/167 ,  F02M63/0015 ,  F02M63/0033 ,  F02M63/0071 ,  F02M63/0078 ,  F02M2200/16

Abstract: The present invention relates to a control valve for a fuel injector. The control valve has a control valve body which defines a supply passage for high pressure fuel. A control chamber and a pressure compensating chamber are provided in the control valve. The control chamber and the pressure compensating chamber are both in fluid communication with the supply passage. A control valve member is provided for controlling fuel pressure in the control chamber. The pressure compensating chamber is spaced radially outwardly from the control chamber. The invention also relates to a control valve member having a pressure compensating cavity.

公开(公告)号：US09470198B2

公开(公告)日：2016-10-18

申请号：US14381005

申请日：2013-01-25

Applicant: ROBERT BOSCH GMBH

Inventor： Thomas Koch ,  Dietmar Schmieder

IPC: F02M61/10 ,  F16K31/10 ,  F02M63/00 ,  F02M61/08 ,  F02M61/16

CPC classification number: F02M63/0026 ,  F02M61/08 ,  F02M61/167 ,  F02M2200/705 ,  F02M2200/707

Abstract: A valve for metering fluid having a valve assembly which meters the fluid, and a hydraulic coupler assigned to the valve assembly. The coupler has a housing cup having a cup bottom, cup wall and cup opening; a piston is guided inside the housing cup in axially displaceable manner and delimits a fluid-filled coupler gap in the direction of the cup bottom and delimits an annular gap in the direction of the cup wall; and a cap-shaped diaphragm having a cap bottom and cap shell, which covers the annular gap at the cup opening by the cap bottom and overlaps the cup wall of the housing cup by the cap shell, and is fixed in place at the piston and cup wall in fluid-tight manner.

Abstract translation: 一种用于计量流体的阀，其具有用于计量流体的阀组件和分配给阀组件的液压联接器。 联接器具有壳杯，其具有杯底，杯壁和杯开口; 活塞在壳体杯内以可轴向移动的方式引导，并限定在杯底方向上的流体填充的联接器间隙，并限定在杯壁方向上的环形间隙; 以及帽形隔膜，其具有帽底和帽壳，其通过帽底覆盖杯开口处的环形间隙，并且通过帽壳与壳体杯的杯壁重叠，并且在活塞处固定就位， 杯壁以流畅的方式。

公开(公告)号：US09404459B2

公开(公告)日：2016-08-02

申请号：US14499119

申请日：2014-09-27

Applicant: McVan Aerospace, LLC

Inventor： Ray McKaig ,  Brian Donovan

IPC: F02M51/06 ,  F02M61/16 ,  F02M57/02 ,  F02M53/06

CPC classification number: F02M61/167 ,  F02M51/061 ,  F02M53/06 ,  F02M57/027

Abstract: A method includes: filling a chamber having a recirculating valve, a piston, a cap valve, an injector valve and an injection orifice with a liquid by closing the injector valve and circulating the liquid from a source through the recirculating valve and the cap valve; then isolating the chamber from the source by closing the recirculating valve and the cap valve then allowing pressure within the chamber to follow a cylinder pressure by mechanically coupling the cylinder pressure into the chamber; and energizing an injector coil with electric current that pulls a solenoid assembly in an upward direction opening the injector valve, further motion of the solenoid assembly drawing the piston upward, wherein liquid in the chamber is compressed by the piston to a higher pressure than the cylinder pressure, which has the effect of injecting an electronically controlled stream of liquid out of the chamber through the injection orifice.

Abstract translation: 一种方法包括：通过关闭喷射阀并使来自源的液体循环通过再循环阀和盖阀，来填充具有循环阀，活塞，盖帽阀，注射器阀和具有液体的注射孔的腔室; 然后通过关闭循环阀和盖阀将腔室与源隔离，从而允许腔室内的压力通过将气缸压力机械耦合到腔室中来跟随气缸压力; 并且用电流激励喷射器线圈，该电流使得螺线管组件朝向打开喷射器阀的向上方向拉动，螺线管组件进一步运动向上拉动活塞，其中室中的液体被活塞压缩到比气缸更高的压力 其具有通过注射孔将电子控制的液体流注入腔室的作用。

公开(公告)号：US20160146172A1

公开(公告)日：2016-05-26

申请号：US14897829

申请日：2014-05-22

Applicant: CONTINENTAL AUTOMOTIVE GMBH

Inventor： Roman Etlender ,  Werner Reim ,  Willibald Schuerz

IPC: F02M61/16 ,  F02M63/02 ,  F02M63/00 ,  F02M51/06 ,  F02M61/04

CPC classification number: F02M61/167 ,  F02M51/0603 ,  F02M61/04 ,  F02M61/166 ,  F02M63/0026 ,  F02M63/0033 ,  F02M63/0225 ,  F02M2200/705 ,  F02M2200/90

Abstract: An injector includes an actuator arranged in an actuator space, a piston guide having a bore hole, and a piston arranged in the bore hole. The piston has a first end face facing the actuator and delimiting a first space in and/or on the bore hole, and a second end face lying opposite the first space and delimiting an adjoining second space in and/or on the bore hole. The piston is arranged between the first and second spaces, and a gap extends around the circumference of the piston between the piston and the bore hole. The piston includes a first material and the piston guide includes a second material, the first and second materials having different thermal expansion properties such that when the piston guide and/or piston are heated, the gap width of the gap decreases to limit fuel leakage between the first space and second spaces.

Abstract translation: 喷射器包括布置在致动器空间中的致动器，具有钻孔的活塞引导件和布置在钻孔中的活塞。 活塞具有面向致动器的第一端面并且限定钻孔中和/或上的孔中的第一空间，以及与第一空间相对的第二端面并且限定钻孔中和/或上的相邻的第二空间。 活塞布置在第一和第二空间之间，并且在活塞和钻孔之间的间隙围绕活塞的圆周延伸。 活塞包括第一材料，活塞导向件包括第二材料，第一和第二材料具有不同的热膨胀特性，使得当活塞导向件和/或活塞被加热时，间隙的间隙宽度减小以限制在 第一个空格和第二个空格。

公开(公告)号：US20150330343A1

公开(公告)日：2015-11-19

申请号：US14712345

申请日：2015-05-14

Applicant: Cummins Inc.

Inventor： Bradlee J. Stroia ,  William David Daniel

IPC: F02M51/06 ,  F02M57/00 ,  F02M63/00 ,  F02M61/08

CPC classification number: F02M51/0603 ,  F02M61/08 ,  F02M61/167 ,  F02M61/20

Abstract: The present disclosure provides a fuel injector including a magnetostrictive actuator that is capable of precise control of a needle or nozzle valve element. The magnetostrictive actuator is direct-acting on the nozzle valve element, which extends into the magnetostrictive actuator, providing a compact fuel injector configuration that may provide rate-shaping of a fuel injection event.

Abstract translation: 本公开提供了一种燃料喷射器，其包括能够精确控制针头或喷嘴阀元件的磁致伸缩致动器。 磁致伸缩致动器直接作用在喷嘴阀元件上，其延伸到磁致伸缩致动器中，提供可提供燃料喷射事件的速率成形的紧凑的燃料喷射器配置。

公开(公告)号：US20150184627A1

公开(公告)日：2015-07-02

申请号：US14415332

申请日：2013-07-04

Applicant: Continental Automotive GmbH

Inventor： Willibald Schuerz

IPC: F02M51/06

CPC classification number: F02M51/0603 ,  F02M61/167 ,  F02M63/0026 ,  F02M2200/28 ,  F02M2200/703 ,  F02M2200/704 ,  F02M2547/001

Abstract: A piezo injector includes a piezo actuator arranged in an actuator chamber and a valve plunger arranged in a valve plunger bore and having a first end face facing the piezo actuator. The valve plunger is arranged between a first control chamber defined by a valve plunger bore portion delimited by the first end face and a spring chamber formed by a valve plunger bore portion opposite the first control chamber. A second control chamber is delimited by a second face of a nozzle needle and a sleeve guided by the nozzle needle. A leakage pin is arranged in a leakage pin bore between the piezo actuator and the first end face of the valve plunger. The leakage pin bore is formed in an intermediate plate arranged on a side of a control plate facing the piezo actuator, the valve plunger bore being formed in said control plate.

Abstract translation: 压电喷射器包括布置在致动器室中的压电致动器和布置在阀柱塞孔中并具有面向压电致动器的第一端面的阀柱塞。 阀柱塞布置在由由第一端面限定的阀柱塞孔部分限定的第一控制室和由与第一控制室相对的阀柱塞孔部分形成的弹簧室之间。 第二控制室由喷嘴针的第二面和由喷嘴针引导的套筒限定。 在压电致动器和阀柱塞的第一端面之间的泄漏销孔中布置有泄漏销。 泄漏针孔形成在布置在面向压电致动器的控制板的一侧的中间板中，阀柱塞孔形成在所述控制板中。

公开(公告)号：US08870091B2

公开(公告)日：2014-10-28

申请号：US13373827

申请日：2011-12-01

Applicant: Ray McKaig ,  Brian Donovan

Inventor： Ray McKaig ,  Brian Donovan

IPC: B05B1/30 ,  F02M57/02

CPC classification number: F02M61/167 ,  F02M51/061 ,  F02M53/06 ,  F02M57/027

Abstract: A method of operating a pressure compensated fuel injector includes: filling a fuel chamber with a charge of fuel by closing an injector valve and circulating a fuel from a fuel source through a plurality of recirculating valves and a cap valve; then isolating the fuel chamber and the charge of fuel from the fuel source; then equalizing a pressure within the fuel chamber to a rising pressure outside the fuel chamber by reducing a volume of the isolated fuel chamber; and then activating a solenoid that is coupled to the injector valve, opening the injector valve; and then further reducing the volume of the isolated fuel chamber to apply an over pressure within the chamber, pumping fuel from the fuel chamber through the injection orifice.

Abstract translation: 一种操作压力补偿燃料喷射器的方法包括：通过关闭喷射器阀并通过多个循环阀和盖帽使来自燃料源的燃料循环来填充燃料室的燃料; 然后从燃料源隔离燃料室和燃料的装料; 然后通过减小隔离燃料室的体积来将燃料室内的压力均衡到燃料室外的上升压力; 然后激活耦合到所述喷射阀的螺线管，打开所述喷射器阀; 然后进一步减小隔离燃料室的体积以在室内施加过压，从燃料室抽取燃料通过喷射孔。