公开(公告)号：US20180372043A1

公开(公告)日：2018-12-27

申请号：US16064593

申请日：2016-12-19

Applicant: Continental Automotive GmbH

Inventor： Ivano Izzo

IPC: F02M51/06 ,  F02M63/00

CPC classification number: F02M51/066 ,  F02M51/0685 ,  F02M63/0022 ,  F02M2200/304 ,  F02M2200/703

Abstract: A valve assembly may include: a valve body with a longitudinal axis and a cavity; a valve needle; and a driving device for displacing the valve needle. In some embodiments, the valve needle comprises a disc element. The disc element and the driving device comprise mutually facing and radially extending coupling surfaces, the coupling surfaces having an overlapping area of at least 35% of the cross-sectional area of the cavity. The driving device takes the disc element with it for displacing the valve needle in the opening direction solely by means of hydraulic interaction between the coupling surfaces when the driving device is displaced in the opening direction. The coupling surface of the driving device engages in a form-fit connection with the coupling surface of the disc element for pushing the valve needle towards the closing position.

公开(公告)号：US20180238287A1

公开(公告)日：2018-08-23

申请号：US15580480

申请日：2016-08-01

Applicant: Hitachi Automotive Systems, Ltd.

Inventor： Kenichiro TOKUO ,  Ryo KUSAKABE ,  Shunsuke ARITOMI ,  Satoshi USUI ,  Masayuki SUGANAMI ,  Minoru HASHIDA ,  Masamichi YAGAI ,  Yuta SASO ,  Atsuji SAITO

IPC: F02M63/00 ,  F02M59/46 ,  F02M59/36

CPC classification number: F02M63/0017 ,  F02D41/20 ,  F02D41/38 ,  F02D41/3845 ,  F02D2041/2037 ,  F02M59/368 ,  F02M59/462 ,  F02M59/466 ,  F02M63/0022 ,  F02M2200/09

Abstract: Provided is a high-pressure fuel pump in which responsiveness of closing a suction valve can be maintained even when the high-pressure fuel pump is increased in pressure or capacity of the high-pressure fuel pump is increased, thereby ensuring discharge efficiency. Therefore, the high-pressure fuel pump includes the rod that urges the suction valve in the valve opening direction, the mover that drives the rod in the valve closing direction, and the solenoid that generates a magnetic attraction force for moving the mover in the valve closing direction. After the suction valve starts moving from the suction valve closing position in the valve opening direction, the rod reaches the suction valve closing position and further moves in the valve opening direction.

公开(公告)号：US20170248110A1

公开(公告)日：2017-08-31

申请号：US15506040

申请日：2015-06-29

Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.

Inventor： Minoru HASHIDA ,  Hiroyuki YAMADA ,  Satoshi USUI ,  Kenichirou TOKUO ,  Masayuki SUGANAMI ,  Atsushi HOHKITA ,  Masamichi YAGAI

IPC: F02M59/36 ,  F02M59/46 ,  F02M59/02 ,  F04B19/22 ,  F04B53/10

CPC classification number: F02M59/366 ,  F02M59/025 ,  F02M59/368 ,  F02M59/466 ,  F02M63/0022 ,  F02M2200/50 ,  F04B19/22 ,  F04B53/10 ,  F04B53/14 ,  F04B53/16

Abstract: A high pressure fuel supply pump includes: an electromagnetic suction valve that adjusts an amount of fuel sucked into a pressuring chamber; a discharge valve that discharges the fuel from the pressuring chamber; and a plunger that makes a reciprocating motion in the pressuring chamber. The electromagnetic suction valve includes an electromagnetic coil, a suction valve, and a movable portion that is able to close the suction valve by a magnetic force when the electromagnetic coil is energized. The movable portion includes an anchor that is driven to close the suction valve by the magnetic force and stops at a fixed member, and a rod that is driven with the anchor and is able to move even after the anchor stops. The electromagnetic suction valve includes a first and second springs that bias the suction valve in closed and open direction, respectively, and a third spring in the rod.

公开(公告)号：US20160305418A1

公开(公告)日：2016-10-20

申请号：US15187821

申请日：2016-06-21

Applicant: Denso International America, Inc. ,  DENSO CORPORATION

Inventor： Tsutomu FURUHASHI ,  Rebecca SPENCE ,  Joseph LUBINSKI ,  Dhyana RAMAMURTHY ,  Kaoru ODA

IPC: F04B49/06 ,  F02D41/38 ,  F02M59/10 ,  F02M63/00 ,  F04B39/00 ,  F02D41/08 ,  F02M59/36

CPC classification number: F04B49/06 ,  F02D41/08 ,  F02D41/3809 ,  F02D2200/101 ,  F02D2200/602 ,  F02M59/102 ,  F02M59/368 ,  F02M63/0022 ,  F02M2200/09 ,  F02M2200/302 ,  F04B39/0027

Abstract: A pump may have a first chamber and a solenoid coil to control movement of a first valve member. A second chamber may have a second valve member to control fluid moving into a third chamber. A first fluid passageway may link the first and second chambers, a second passageway may link second and third chambers and a third passageway may link third and fourth chambers. After pressurizing the third chamber causing fluid to flow into and leave a fourth chamber, the third chamber depressurizes due to downward movement of a plunger. Upon depressurization with a solenoid coil energized, second valve member floats and then moves against a valve seat. While the second valve member is moving toward the valve seat, the solenoid coil is de-energized causing the first valve member to move and strike the second valve member when the second valve member is moving at maximum velocity.

Abstract translation: 泵可以具有第一室和电磁线圈，以控制第一阀构件的运动。 第二室可以具有第二阀构件以控制流入第三室的流体。 第一流体通道可以连接第一和第二腔室，第二通道可以连接第二和第三腔室，第三通道可以连接第三和第四腔室。 在加压第三室，使流体流入并离开第四室之后，第三室由于柱塞的向下运动而减压。 在用螺线管线圈通电的情况下进行减压，第二阀构件浮动然后抵靠阀座移动。 当第二阀构件朝向阀座移动时，当第二阀构件以最大速度移动时，螺线管线圈断电，使得第一阀构件移动并撞击第二阀构件。

公开(公告)号：US20160305383A1

公开(公告)日：2016-10-20

申请号：US15195075

申请日：2016-06-28

Applicant: Caterpillar Inc.

Inventor： Daniel R. Puckett ,  Bryan Moore ,  Michael E. Sattler ,  Prasanna M. Ballal ,  Bradley S. Bashore ,  Kranti K. Nellutla

IPC: F02M47/02 ,  F02D41/30 ,  F02M51/06 ,  F02M63/00 ,  F02D41/38 ,  F02D41/20

CPC classification number: F02M47/027 ,  F02D41/20 ,  F02D41/3082 ,  F02D41/3836 ,  F02D2041/2044 ,  F02D2041/2051 ,  F02D2041/2055 ,  F02D2041/2058 ,  F02M51/0625 ,  F02M63/0022 ,  F02M63/0075

Abstract: Fuel is injected by energizing a solenoid of a fuel injector for an on-time that terminates at a first end-of-current timing. An end-of-current trim is determined at least in part by estimating a duration between an induced current event in a circuit of the solenoid and a valve/armature interaction event. An induced current event occurs when an armature abruptly stops, and a valve/armature interaction event occurs when the armature couples with or de-couples from the valve member. Fuel is injected in a subsequent injection event by adjusting the end-of-current timing by the end-of-current trim.

公开(公告)号：US20150144710A1

公开(公告)日：2015-05-28

申请号：US14405056

申请日：2013-05-29

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

Inventor： Mark S. Graham

IPC: F02M63/00

CPC classification number: F02M63/0014 ,  F02M47/02 ,  F02M63/0015 ,  F02M63/0022 ,  F02M2547/001

Abstract: The present invention relates to a fuel injector for use in delivering fuel to an internal combustion engine. The fuel injector includes a nozzle having a valve needle which is movable with respect to a valve needle seat. The valve needle travels through a range of movement between a closed position and an open position to control fuel delivery through at least one nozzle outlet. The valve needle cooperates with a needle sleeve or a control member which is located in a piston guide. The valve needle is movable relative to the needle sleeve or the control member. The needle sleeve or the control member is movable relative to the piston guide. The invention also relates to a method of operating a fuel injector; and a fuel injector control unit.

Abstract translation: 本发明涉及一种用于向内燃机输送燃料的燃料喷射器。 燃料喷射器包括具有可相对于阀针座移动的阀针的喷嘴。 阀针穿过关闭位置和打开位置之间的运动范围，以控制通过至少一个喷嘴出口的燃料输送。 阀针与位于活塞引导件中的针套管或控制构件配合。 阀针可相对于针套或控制构件移动。 针筒或控制构件可相对于活塞导向件移动。 本发明还涉及一种操作燃料喷射器的方法; 和燃料喷射器控制单元。

公开(公告)号：US20140203112A1

公开(公告)日：2014-07-24

申请号：US13747589

申请日：2013-01-23

Applicant: CATERPILLAR INC.

Inventor： Richard Holtman

IPC: F02M61/18

CPC classification number: F02M63/0022 ,  F02M47/027 ,  F02M63/0075

Abstract: A common rail fuel injector includes a control valve member unattached to, but trapped between, a push pin and a seat of an injector body. The push pin has a head that includes a contact surface and a crown that includes a stop surface. An air gap surface of an armature is located between a top of the head and the stop surface of the crown when the contact surface of the push pin is in contact with the armature. The stop surface of the crown is located between an air gap plane of a stator assembly and the air gap surface of the armature. The push pin, the armature and the control valve member are movable among a rest configuration, an injection configuration, and an over travel configuration.

Abstract translation: 共轨燃料喷射器包括未附接到但被夹在推动销和喷射器主体的座之间的控制阀构件。 推销具有包括接触表面和包括止动表面的表冠的头部。 当推销的接触表面与电枢接触时，电枢的气隙表面位于头部的顶部和冠部的止动表面之间。 冠部的止动表面位于定子组件的气隙平面和衔铁的气隙表面之间。 推销，电枢和控制阀构件可在静止构型，注射构型和过度行驶构型之间移动。

公开(公告)号：US08689772B2

公开(公告)日：2014-04-08

申请号：US13111477

申请日：2011-05-19

Applicant: Gregory William Hefler ,  Adam Leonard Stecklein ,  Daniel Richard Ibrahim

Inventor： Gregory William Hefler ,  Adam Leonard Stecklein ,  Daniel Richard Ibrahim

IPC: F02M59/46 ,  F16K31/02

CPC classification number: F02M63/0036 ,  F02M47/027 ,  F02M61/166 ,  F02M63/0022 ,  F02M2200/9007

Abstract: A common rail fuel injector includes a fuel inlet, a set of nozzle outlets, a drain outlet, a nozzle chamber and a needle control chamber. A needle control valve includes a ceramic control valve member movable between a closed position in contact with a flat valve seat to block the needle control chamber from the drain outlet, and an open position at which the needle control chamber is fluidly connected to the drain outlet. A solenoid actuator is mounted in the injector body and includes an armature movable between an overtravel position and an energized position, but the armature has a stable un-energized position between the overtravel position and the energized position. A needle valve member is positioned in the injector body and includes an opening hydraulic surface exposed to fluid pressure in the nozzle chamber, and a closing hydraulic surface exposed to fluid pressure in the needle control chamber. Armature overtravel is facilitated by a telescoping armature pin that includes a stem affixed to the armature and telescopically received in a pusher in contact with the ceramic control valve member.

Abstract translation: 共轨燃料喷射器包括燃料入口，一组喷嘴出口，排水出口，喷嘴室和针控制室。 针控制阀包括陶瓷控制阀构件，陶瓷控制阀构件可在与平阀座接触的关闭位置之间移动，以将针控制腔从排泄口堵塞，以及打开位置，在该打开位置，针控制室流体地连接到排水出口 。 螺线管致动器安装在喷射器主体中并且包括可在超行程位置和通电位置之间移动的衔铁，但电枢在超行程位置和通电位置之间具有稳定的未通电位置。 针阀构件定位在喷射器主体中，并且包括暴露于喷嘴室中的流体压力的开口液压表面以及在针控制室中暴露于流体压力的关闭液压表面。 电枢超行程通过伸缩电枢销促进，该电枢销包括固定到电枢的杆，并可伸缩地容纳在与陶瓷控制阀构件接触的推动器中。

公开(公告)号：US07334741B2

公开(公告)日：2008-02-26

申请号：US11044724

申请日：2005-01-28

Applicant: Donald J. Benson ,  David M. Rix ,  Lester L. Peters ,  Shankar C. Venkataraman ,  C. Edward Morris, Jr.

Inventor： Donald J. Benson ,  David M. Rix ,  Lester L. Peters ,  Shankar C. Venkataraman ,  C. Edward Morris, Jr.

IPC: F02D1/06

CPC classification number: F02M47/027 ,  F02M45/083 ,  F02M61/042 ,  F02M63/0017 ,  F02M63/0022 ,  F02M2200/315

Abstract: A closed nozzle fuel injector is provided which effectively controls the fuel injection flow rate, especially during an initial portion of an injection event, while also permitting accurate control over pilot and/or post injection flow rates at all operating conditions thereby advantageously reducing emissions and combustion noise. The injector includes a rate shaping orifice to restrict fuel flow during an initial portion of an injection event and a rate shaping sleeve mounted for movement to cause a greater flow of injection fuel during a later portion of the injection event. A damping chamber and orifice are also provided to control movement of the rate shaping sleeve.

Abstract translation: 提供了一种封闭的喷嘴燃料喷射器，其特别是在喷射事件的初始部分期间有效地控制燃料喷射流量，同时还允许在所有操作条件下精确控制先导和/或后喷射流量，从而有利地减少排放和燃烧 噪声。 喷射器包括速率成形孔，用于限制喷射事件的初始部分期间的燃料流量，以及安装成用于在喷射事件的稍后部分期间引起更大喷射燃料流量的速率成形套筒。 还提供阻尼室和孔口以控制速率成形套筒的运动。

公开(公告)号：US06688579B2

公开(公告)日：2004-02-10

申请号：US10221285

申请日：2002-12-23

Applicant: Uwe Grytz

Inventor： Uwe Grytz

IPC: F16K3102

CPC classification number: F02M47/027 ,  F02M63/0019 ,  F02M63/0022 ,  F02M2200/306 ,  F02M2200/8092 ,  F02M2547/003

Abstract: A solenoid valve for controlling a fuel injector of an internal combustion engine having an electromagnet, a movable armature having an armature plate and an armature pin, and a control valve element which is moved with the armature and works together with a valve seat, for opening and closing a fuel drain channel of a control pressure chamber of the fuel injector, is provided. The armature plate is mounted on the armature pin so that it is movable by sliding under the effect of its inertial mass in the closing direction of the control valve element against the tension of a return spring acting on the armature plate. In order to be able to easily set the maximum slide path of the armature plate, an actuator is provided on the armature plate which is arranged on a section of the armature plate facing away from the electromagnet and is adjustable in the sliding direction of the armature plate relative to a face of the armature plate facing the electromagnet.

Abstract translation: 一种用于控制具有电磁体的内燃机的燃料喷射器的电磁阀，具有电枢板和电枢销的可动电枢以及与电枢一起移动并与阀座一起工作的控制阀元件，用于打开 并且关闭燃料喷射器的控制压力室的燃料排放通道。 电枢板安装在电枢销上，使得它能够在其惯性质量的作用下在控制阀元件的关闭方向上抵抗作用在衔铁板上的复位弹簧的张力上滑动而移动。 为了能够容易地设定电枢板的最大滑动路径，在电枢板上设置有致动器，该电枢板布置在电枢板的远离电磁体的一部分上，并且可在电枢的滑动方向上调节 相对于衔铁板面对电磁体的面。