公开(公告)号：US11982252B2

公开(公告)日：2024-05-14

申请号：US18036007

申请日：2021-11-10

申请人： DELPHI TECHNOLOGIES IP LIMITED

发明人： David Jones

IPC分类号： F02M55/04 ,  F02M59/10 ,  F02M59/30 ,  F02M59/44

CPC分类号： F02M55/04 ,  F02M59/102 ,  F02M59/30 ,  F02M59/44 ,  F02M2200/31 ,  F02M2700/1376 ,  F02M2700/1388

摘要： A fuel pump assembly comprises a plunger arranged to reciprocate within a plunger bore via a drive shaft, to perform a pumping cycle comprising a pumping stroke and a return stroke, the pumping stroke comprising movement of the plunger from a bottom dead centre (BDC) position to a top dead centre (TDC) position, and the return stroke comprising movement of the plunger from the TDC position to the BDC position. The fuel pump assembly comprises a spring assembly including a return spring that is cooperable, at a first end, with a first member coupled to the plunger and movable at a first speed dependent on the speed of rotation of the drive shaft and, at a second end, with a second member which is movable at a damped speed relative to the first speed.

公开(公告)号：US09777879B2

公开(公告)日：2017-10-03

申请号：US14803362

申请日：2015-07-20

申请人： DELPHI TECHNOLOGIES, INC.

发明人： Mahoro M. Fujita ,  Kenneth J. Dauer ,  Daniel F. Kabasin ,  Ravish S. Masti ,  Youssef Kazour

IPC分类号： F16L55/04 ,  F02M37/00 ,  F02M55/04 ,  F04B39/00 ,  F04B53/00 ,  F16L55/053

CPC分类号： F16L55/04 ,  F02M37/0041 ,  F02M55/04 ,  F02M2200/31 ,  F02M2200/8053 ,  F04B39/0033 ,  F04B53/002 ,  F16L55/053

摘要： A pulsation damper is disposed within a fluid volume defined by a fluid volume wall such that the pulsation damper is exposed to pressure pulsations within the fluid volume. The pulsation damper includes a pulsation damper first half having a first damper wall which is flexible in response to the pressure pulsations; a pulsation damper second half having a second damper wall which is flexible in response to the pressure pulsations; and a damping volume defined between the pulsation damper first half and the pulsation damper second half such that the damping volume is fluidly segregated from the fluid volume. One of the pulsation damper first half and the pulsation damper second half defines a spacing member which maintains separation between the fluid volume wall and one of the first damper wall and the second damper wall.

公开(公告)号：US09447720B2

公开(公告)日：2016-09-20

申请号：US13882959

申请日：2011-11-02

申请人： Christian Graspeuntner ,  Gerhard Unterberger ,  Franz Guggenbichler

发明人： Christian Graspeuntner ,  Gerhard Unterberger ,  Franz Guggenbichler

IPC分类号： F02M61/14 ,  F02B17/00 ,  F02M47/02 ,  F02M61/16

CPC分类号： F02B17/005 ,  F02M47/027 ,  F02M61/14 ,  F02M61/168 ,  F02M2200/31 ,  F02M2200/40

摘要： A device for injecting fuel into the combustion chamber of an internal combustion engine with at least one injector includes an injector body equipped with a high-pressure accumulator, a nozzle needle axially displaceably guided in the injector and surrounded by a nozzle chamber, a high-pressure line connecting the high-pressure accumulator to the nozzle chamber, and a resonator line arranged in parallel with the high-pressure line and communicating with the nozzle chamber and opening into the high-pressure accumulator via a resonator throttle. The resonator line and the high-pressure line, at least in their sections adjacent the high-pressure accumulator, are formed in a retaining body which, on its end face, is screwed into the accumulator pipe forming the high-pressure accumulator.

摘要翻译： 用于将燃料喷射到具有至少一个喷射器的内燃机的燃烧室中的装置包括：装备有高压蓄能器的喷射器主体，在喷射器中轴向移动引导并被喷嘴室包围的喷嘴针， 将高压蓄电池连接到喷嘴室的压力线以及与高压线并联布置的谐振器线路，并与喷嘴室连通并经由谐振器节流阀开启到高压蓄电池。 谐振器线路和高压线路至少在与高压蓄电池相邻的部分中形成在保持体中，该保持体在其端面上拧入形成高压蓄能器的蓄能管中。

公开(公告)号：US20160230726A1

公开(公告)日：2016-08-11

申请号：US15023329

申请日：2014-09-11

申请人： ROBERT BOSCH GMBH

发明人： Andreas DUTT ,  Achim KOEHLER

IPC分类号： F02M55/04 ,  F02M69/54

CPC分类号： F02M55/04 ,  F02M59/102 ,  F02M59/44 ,  F02M63/0001 ,  F02M69/54 ,  F02M2200/03 ,  F02M2200/09 ,  F02M2200/28 ,  F02M2200/31 ,  F02M2200/315 ,  F04B11/0008

摘要： The invention relates to a fluid conveyance system for a fluid, comprising a low-pressure conveyance system having a low-pressure pump (2) and a high-pressure conveyance system having a high-pressure pump (8), which are connected by means of a connecting line, wherein the fluid conveyance system has a pressure damper (19). According to the invention, a fluid conveyance system is provided, by means of which a pulsation of the fluid caused by flow-rate waves or pressure waves in the fluid is damped. This is achieved in that the pressure damper (19) is arranged in the lower-pressure conveyance system and is a hydraulic pressure damper (19). Said hydraulic damper (19) has a piston (21) arranged in a cylinder (20), which piston can be moved against the force of a compression spring (23) and the vapor pressure present in a compression-spring chamber (22) accommodating the compression spring.

摘要翻译： 本发明涉及一种用于流体的流体输送系统，包括具有低压泵（2）和具有高压泵（8）的高压输送系统的低压输送系统，所述高压输送系统通过装置连接 的连接线，其中所述流体输送系统具有压力阻尼器（19）。 根据本发明，提供了一种流体输送系统，通过该流体输送系统阻止了流体波或流体中的压力波引起的流体的脉动。 这是通过将压力调节器19布置在低压输送系统中并且是液压阻尼器19来实现的。 所述液压阻尼器（19）具有布置在气缸（20）中的活塞（21），所述活塞可克服压缩弹簧（23）的力而运动，并且存在于容纳压缩弹簧室 压缩弹簧。

公开(公告)号：US08286893B2

公开(公告)日：2012-10-16

申请号：US12556691

申请日：2009-09-10

申请人： Antonio Agresta ,  Gianbattista Fischetti ,  Luigi Gargiulo ,  Marco Mechi

发明人： Antonio Agresta ,  Gianbattista Fischetti ,  Luigi Gargiulo ,  Marco Mechi

IPC分类号： F02M51/06 ,  F02M51/00

CPC分类号： F02M61/16 ,  F02M55/04 ,  F02M61/168 ,  F02M2200/28 ,  F02M2200/31

摘要： A fuel injector (10) has a housing (12) with a central longitudinal axis (L) having a fluid inlet portion (18) being adapted to be coupled to a fuel rail at a first axial end area (20). The housing (12) has a recess (24) and enables a fluid flow through a fluid outlet portion (26) at a second axial end area (28) facing away from the first axial end area (20). The fluid inlet portion (18) communicates with the fluid outlet portion (26) via the recess (24). Furthermore, the fuel injector (10) has a safety component (30), which is arranged at the central longitudinal axis (L) within the recess (24) and adapted to reduce and arranged for reducing a velocity regarding the central longitudinal axis (L) at the fluid inlet portion (18) of the fluid flowing from the recess (24) through the fluid inlet portion (18).

摘要翻译： 燃料喷射器（10）具有壳体（12），其中心纵向轴线（L）具有流体入口部分（18），其适于在第一轴向端部区域（20）处联接到燃料轨道。 壳体（12）具有凹部（24），并使流体能够在离开第一轴向端部区域（20）的第二轴向端部区域（28）处流过流体出口部分（26）。 流体入口部分（18）经由凹部（24）与流体出口部分（26）连通。 此外，燃料喷射器（10）具有安全部件（30），该安全部件设置在凹部（24）内的中心纵向轴线（L）处，并且适于减小并布置成减小关于中心纵向轴线（L ）在从凹部（24）流过流体入口部分（18）的流体的流体入口部分（18）处。

公开(公告)号：US07789071B2

公开(公告)日：2010-09-07

申请号：US12225120

申请日：2007-04-11

申请人： Tatsuhiko Akita ,  Mitsuto Sakai ,  Naoki Kurata

发明人： Tatsuhiko Akita ,  Mitsuto Sakai ,  Naoki Kurata

IPC分类号： F02M63/00 ,  F02M63/02

CPC分类号： F02M69/046 ,  F02M55/04 ,  F02M59/366 ,  F02M63/0225 ,  F02M63/029 ,  F02M63/0295 ,  F02M2200/31 ,  F02M2200/315 ,  F02M2200/60

摘要： A pulsation damper is provided between and in series with a low pressure fuel system pipe and a high pressure pump of a fuel supply system. During startup of an engine, low pressure fuel supplied via the low pressure fuel system pipe is injected from an intake passage fuel injector. When the fuel pressure is equal to or less than a fuel pressure at which good startability can be maintained, the pulsation damper closes off communication between the high pressure fuel system pipe and the low pressure fuel system pipe using the spring force of a spring.

摘要翻译： 在低压燃料系统管道和燃料供应系统的高压泵之间提供脉动阻尼器并与其串联。 在发动机起动时，通过低压燃料系统管道供给的低压燃料从进气通道燃料喷射器喷射。 当燃料压力等于或小于能够保持良好启动性的燃料压力时，脉动阻尼器使用弹簧的弹簧力来阻断高压燃料系统管道和低压燃料系统管道之间的连通。

公开(公告)号：US07059548B2

公开(公告)日：2006-06-13

申请号：US10332567

申请日：2002-04-23

申请人： Ferdinand Reiter ,  Ulrich Fischer ,  Franz Thömmes

发明人： Ferdinand Reiter ,  Ulrich Fischer ,  Franz Thömmes

IPC分类号： B05B1/30 ,  F02M51/00

CPC分类号： F02M55/04 ,  F02B2075/125 ,  F02M51/0667 ,  F02M51/0671 ,  F02M51/0685 ,  F02M61/12 ,  F02M61/16 ,  F02M61/166 ,  F02M61/168 ,  F02M61/1806 ,  F02M2200/306 ,  F02M2200/31 ,  F02M2200/315 ,  F02M2200/50 ,  F02M2200/9015 ,  F02M2200/903 ,  F02M2200/9053 ,  Y02T10/123 ,  Y10S239/90

摘要： A fuel injector with a magnetic coil which cooperates with an armature acted upon by a restoring spring, the armature forming an axially movable valve part with a valve needle. A valve-closure member which forms a sealing seat with a valve-seat member is provided at the valve needle. At least one damping element is disposed in an opening of the fuel injector through which fuel flows.

摘要翻译： 具有与由电枢作用的电枢配合的电磁线圈的燃料喷射器，所述电枢形成具有阀针的可轴向移动的阀部件。 在阀针处设置有形成具有阀座构件的密封座的阀关闭构件。 至少一个阻尼元件设置在燃料喷射器的开口中，燃料流过该开口。

公开(公告)号：US06905002B2

公开(公告)日：2005-06-14

申请号：US10177195

申请日：2002-06-21

申请人： Kalyan Singh Bagga ,  Xilin Yang ,  Kenneth R. Seymour, II ,  W. Bryan Snyder ,  Sidi Ould Sadfa ,  Ning Lei ,  James H. Yager

发明人： Kalyan Singh Bagga ,  Xilin Yang ,  Kenneth R. Seymour, II ,  W. Bryan Snyder ,  Sidi Ould Sadfa ,  Ning Lei ,  James H. Yager

IPC分类号： F02M47/04 ,  F02M55/02 ,  F02M55/04 ,  F02M57/02 ,  F02M59/10 ,  F02M61/16 ,  F02M69/46 ,  F16L47/02 ,  F01N1/08 ,  F16K55/02

CPC分类号： F02M55/04 ,  F02M57/025 ,  F02M59/105 ,  F02M69/465 ,  F02M2200/31

摘要： An actuator rail assembly for conveying an actuating fluid under pressure to at least one fuel injector, include an elongate fluid passageway being defined in a rail. A fluid inlet port is in fluid communication with the fluid passageway, the inlet port being fluidly couplable to a source of actuating fluid under pressure. A respective fluid outlet port is associated with each respective fuel injector and being fluidly couplable thereto for conveying actuating fluid to the respective fuel injector; and at least one fluid cavity having at least one throttling orifice, the orifice effecting fluid communication between the fluid cavity and the fluid passageway. An acoustic wave attenuator and a method of attenuation are also included.

摘要翻译： 用于将压力下的致动流体输送到至少一个燃料喷射器的致动器轨道组件包括限定在轨道中的细长流体通道。 流体入口端口与流体通道流体连通，入口端口可流体地连接到压力下的致动流体源。 相应的流体出口与每个相应的燃料喷射器相关联并且与其流体连接，用于将致动流体输送到相应的燃料喷射器; 以及具有至少一个节流孔的至少一个流体腔，所述孔影响流体腔和流体通道之间的流体连通。 还包括声波衰减器和衰减方法。

公开(公告)号：US20050072405A1

公开(公告)日：2005-04-07

申请号：US10940647

申请日：2004-09-15

申请人： Susumu Kojima ,  Motoki Ohtani

发明人： Susumu Kojima ,  Motoki Ohtani

IPC分类号： F02M37/04 ,  F02B3/06 ,  F02B23/10 ,  F02B75/12 ,  F02D33/00 ,  F02D41/38 ,  F02M37/00 ,  F02M55/02 ,  F02M55/04 ,  F02M63/00 ,  F02M63/02 ,  F02M69/04 ,  F02M1/00

CPC分类号： F02D33/003 ,  F02B3/06 ,  F02B23/104 ,  F02B2075/125 ,  F02B2275/14 ,  F02B2275/16 ,  F02D41/3094 ,  F02D41/3836 ,  F02D2041/3881 ,  F02D2250/04 ,  F02M37/0041 ,  F02M37/0047 ,  F02M63/0225 ,  F02M63/025 ,  F02M63/029 ,  F02M69/046 ,  F02M2200/31 ,  Y02T10/123

摘要： A fuel supplying apparatus of an internal combustion engine includes a first fuel supply system, a second fuel supply system, and a pulsation propagation suppressing unit. The first fuel supply system pressurizes a fuel by a low-pressure pump, and supplies the fuel pressurized by the low-pressure pump to a first fuel injection mechanism. The second fuel supply system is branched from the first fuel supply system, further pressurizes the fuel, pressurized by the low-pressure pump, by a high-pressure pump that is driven according to an operating state of the internal combustion engine, and supplies the fuel pressurized by the high-pressure pump to a second fuel injection mechanism. The pulsation propagation suppressing unit is provided in at least one of the first fuel supply system and the second fuel supply system, and suppresses propagation of a pulsation generated in the high-pressure pump to the first fuel injection mechanism.

摘要翻译： 内燃机的燃料供给装置具备第一燃料供给系统，第二燃料供给系统和脉动传播抑制部。 第一燃料供给系统通过低压泵对燃料进行加压，并且将由低压泵加压的燃料供给到第一燃料喷射机构。 第二燃料供应系统从第一燃料供应系统分支，通过由内燃机的运行状态驱动的高压泵对由低压泵加压的燃料进一步加压，并将 由高压泵加压到第二燃料喷射机构的燃料。 脉动传播抑制单元设置在第一燃料供应系统和第二燃料供给系统中的至少一个中，并且抑制在高压泵中产生的脉动的传播到第一燃料喷射机构。

公开(公告)号：US20040139947A1

公开(公告)日：2004-07-22

申请号：US10685535

申请日：2003-10-16

发明人： Yoshiyuki Serizawa ,  Hikari Tsuchiya ,  Koichi Hayashi ,  Tetsuo Ogata

IPC分类号： F02M055/02

CPC分类号： F02M55/04 ,  F02M55/02 ,  F02M55/025 ,  F02M2200/31

摘要： A pulsation reducing system for a fuel line of an internal combustion engine, especially for an automotive engine equipped with an electronic fuel injection system is provided. The system comprises a fuel delivery rail, a fuel tank, and a longitudinal main fuel pipe. A first flexible tube is arranged between the fuel delivery rail and the main fuel pipe. A second flexible tube is arranged between the main fuel pipe and the fuel tank. A small-ID tubular portion is arranged within the first tube or near the connecting portion of the first tube. The inside diameter of the small-ID tubular portion is smaller than that of said main fuel pipe. The length of the small-ID tubular portion is set between 10 to 50 times of the inside diameter of the small-ID tubular portion itself. Thus, standing waves and resultant pressure pulsations caused by the fuel delivery rail are reduced by the small-ID tubular portion.

摘要翻译： 提供了一种用于内燃机的燃料管路的脉动降低系统，特别是用于配备有电子燃料喷射系统的汽车发动机。 该系统包括燃料输送轨道，燃料箱和纵向主燃料管。 燃料输送轨道和主燃料管之间布置有第一柔性管。 在主燃料管和燃料箱之间设置有第二柔性管。 小ID管状部分布置在第一管内或第一管的连接部分附近。 小ID管状部分的内径小于所述主燃料管的内径。 小ID管状部分的长度设定在小ID管状部分本身的内径的10至50倍之间。 因此，通过小ID管状部分减少由燃料输送轨道引起的驻波和合成的压力脉动。