公开(公告)号：WO2009058284A1

公开(公告)日：2009-05-07

申请号：PCT/US2008/012250

申请日：2008-10-29

Applicant: CATERPILLAR INC. ,  GIBSON, Dennis, H. ,  SOMMARS, Mark, F. ,  KIM, Hoisan

Inventor： GIBSON, Dennis, H. ,  SOMMARS, Mark, F. ,  KIM, Hoisan

IPC: F02M59/10 ,  F02M59/46 ,  F02M63/00 ,  F01L25/04 ,  F04B9/117

CPC classification number: F02M63/0047 ,  F01L25/04 ,  F02M59/105 ,  F02M59/46 ,  F02M63/0028 ,  F02M63/004 ,  F04B9/1172

Abstract: An internal combustion engine (12) includes an engine housing (16), a common rail (14), and a pressurization device (40) for the common rail fuel system (14) which includes a plurality of intensifier pistons (51, 53), and an hydraulically actuated control valve (60) movable between a first position at which it fluidly connects a source of pressurized actuation fluid (32) with one of said intensifier pistons (51) but not a second one of the intensifier pistons (53), and a second position at which it fluidly connects the at least one fluid inlet with the second one of the intensifier pistons (53) but not the first one (51) of the intensifier pistons (51).

Abstract translation: 内燃机（12）包括发动机壳体（16），共轨（14）和用于共轨燃料系统（14）的加压装置（40），其包括多个增压活塞（51,53） 以及液压致动的控制阀（60），其可在第一位置和第二位置之间移动，第一位置在第一位置和第二位置之间，第一位置将加压致动流体源（32）流体地连接到所述增压器活塞（51）中的一个，而不是第二增压器活塞（53） 以及第二位置，在所述第二位置，所述第二位置使所述至少一个流体入口与所述增压器活塞（53）中的第二个流体连接，而不是所述增压器活塞（51）的第一个。

公开(公告)号：WO2013096280A1

公开(公告)日：2013-06-27

申请号：PCT/US2012/070295

申请日：2012-12-18

Applicant: CATERPILLAR INC.

Inventor： BROWN, Cory, A. ,  DING, Xiangdong ,  KIM, Hoisan ,  MITTAL, Mayank ,  SOMMARS, Mark, F.

IPC: F02M43/00 ,  F02D19/06 ,  F02M61/16 ,  F02M61/04

CPC classification number: F02M69/50 ,  F02M21/02 ,  F02M21/0275 ,  F02M43/00 ,  F02M43/04 ,  F02M63/029 ,  Y02T10/32 ,  Y02T10/36

Abstract: The present disclosure is directed to a fuel circuit (500) of a fuel injector (12) that includes a first channel, a second channel, and a valve (80). The first channel is configured to receive a first fuel and define a flow path for the first fuel. The second channel is configured to receive a second fuel and define a flow path for the second fuel. The valve (80) is in fluid communication with the first channel and the second channel. The valve (80) is adapted to direct the second fuel to the first channel when a pressure in the first channel reaches a predetermined level.

Abstract translation: 本公开涉及包括第一通道，第二通道和阀（80）的燃料喷射器（12）的燃料回路（500）。 第一通道被配置为接收第一燃料并且限定第一燃料的流动路径。 第二通道被配置为接收第二燃料并且限定第二燃料的流动路径。 阀（80）与第一通道和第二通道流体连通。 当第一通道中的压力达到预定水平时，阀（80）适于将第二燃料引导到第一通道。

公开(公告)号：WO2012155030A2

公开(公告)日：2012-11-15

申请号：PCT/US2012/037483

申请日：2012-05-11

Applicant: CATERPILLAR INC. ,  KIM, Hoisan ,  DING, Xiangdong ,  SOMMARS, Mark, F.

Inventor： KIM, Hoisan ,  DING, Xiangdong ,  SOMMARS, Mark, F.

IPC: F02D19/06 ,  F02M43/04 ,  F02M47/02 ,  F02M63/02 ,  F02M45/08

CPC classification number: F02D19/0615 ,  F02D19/0684 ,  F02D19/0694 ,  F02D19/10 ,  F02M43/04 ,  F02M45/086 ,  F02M47/027 ,  F02M51/06 ,  F02M51/0625 ,  F02M63/029 ,  F02M2200/44 ,  F02M2200/46 ,  Y02T10/36

Abstract: A dual fuel injector (100) may be used to injector both gas and liquid fuel into a cylinder (7) of a compression ignition engine (5). An injector body (12) defines a first set of nozzle outlets (90), a second set of nozzle outlets (90), a first fuel inlet (33) and a second fuel inlet (36). A dual solenoid actuator (100) includes a first armature (110), a first coil (102), a second armature (103) and a second coil (104) that share a common centerline (54). The dual solenoid actuator (100) has a non-injection configuration at which the first armature (110) is at an un-energized position and the second armature (103) is at an un-energized position. The dual solenoid actuator (100) has a first fuel injection configuration at which the first fuel inlet (48) is fluidly connected to the first set of nozzle outlets (90), the first armature (110) is at an energized position and the second armature (103) is at the un-energized position. The dual solenoid actuator (100) has a second fuel injection configuration at which the second fuel inlet (57) is fluidly connected to the second set of nozzle outlets (96), the first armature (110) is at the un-energized position and the second armature (103) is at an energized position. The dual solenoid actuator (100) may also include a combined fuel injection configuration.

Abstract translation: 双燃料喷射器（100）可用于将气体和液体燃料喷射到压缩点火发动机（5）的气缸（7）中。 喷射器主体（12）限定第一组喷嘴出口（90），第二组喷嘴出口（90），第一燃料入口（33）和第二燃料入口（36）。 双螺线管致动器（100）包括共享公共中心线（54）的第一电枢（110），第一线圈（102），第二电枢（103）和第二线圈（104）。 双螺线管致动器（100）具有非注入构造，第一电枢（110）处于非激励位置，第二电枢（103）处于未通电位置。 双螺线管致动器（100）具有第一燃料喷射构造，第一燃料入口（48）在该第一燃料喷射构造处流体地连接到第一组喷嘴出口（90），第一电枢（110）处于通电位置，第二燃料入口 电枢（103）处于未通电位置。 双螺线管致动器（100）具有第二燃料喷射构造，第二燃料入口（57）在该第二燃料喷射构造处流体地连接到第二组喷嘴出口（96），第一电枢（110）处于未通电位置，并且 第二电枢（103）处于通电位置。 双螺线管致动器（100）还可以包括组合的燃料喷射构造。

公开(公告)号：WO2013063023A1

公开(公告)日：2013-05-02

申请号：PCT/US2012/061563

申请日：2012-10-24

Applicant: CATERPILLAR INC.

Inventor： KIM, Hoisan ,  SOMMARS, Mark, F. ,  STOCKNER, Alan

IPC: F02M43/04 ,  F02M61/16 ,  F02M61/18 ,  F02D19/06

CPC classification number: F02M43/04 ,  F02D19/0694 ,  F02D19/10 ,  F02M21/023 ,  F02M2200/44 ,  Y02T10/36

Abstract: A dual fuel system (10) includes a dual fuel injector (12) defining a gaseous fuel inlet (48), a gaseous nozzle outlet set (90), a liquid fuel inlet (57) and a liquid nozzle outlet set (96). The dual fuel injector (12) has disposed therein a gaseous nozzle chamber (91) fluidly connected to the gaseous fuel inlet (48), and a liquid nozzle chamber (99) fluidly connected to the liquid fuel inlet (57). The dual fuel injector (12) also includes a hydraulic lock seal (93) with an annular volume (191) of liquid fuel surrounding a guide segment (74) of a gas needle valve member (73) for inhibiting migration of gaseous fuel into the liquid fuel. A gaseous fuel common rail (16) fluidly is connected to the gaseous fuel inlet (48), and a liquid fuel common rail (14) is fluidly connected to the liquid fuel inlet (57). A check valve (18) is fluidly positioned between the gaseous fuel common rail (16) and the gaseous nozzle chamber (91) of the dual fuel injector (12) for blocking liquid fuel leaked into the gaseous nozzle chamber (91) through the hydraulic lock seal (93) from entering the gaseous fuel common rail (16).

Abstract translation: 双燃料系统（10）包括限定气体燃料入口（48），气体喷嘴出口组（90），液体燃料入口（57）和液体喷嘴出口组（96）的双燃料喷射器（12）。 双燃料喷射器（12）在其中设置有流体连接到气体燃料入口（48）的气体喷嘴室（91）和与液体燃料入口（57）流体连接的液体喷嘴室（99）。 双燃料喷射器（12）还包括液压锁定密封件（93），其具有围绕气体针阀构件（73）的引导段（74）的液体燃料的环形容积（191），用于阻止气体燃料进入 液体燃料。 气体燃料共轨（16）流体地连接到气体燃料入口（48），液体燃料共轨（14）流体地连接到液体燃料入口（57）。 止回阀（18）流体地定位在气体燃料共轨（16）和双燃料喷射器（12）的气体喷嘴室（91）之间，用于通过液压来阻止泄漏到气体喷嘴室（91）中的液体燃料 锁定密封件（93）不进入气体燃料共轨（16）。

公开(公告)号：WO2013033140A1

公开(公告)日：2013-03-07

申请号：PCT/US2012/052760

申请日：2012-08-29

Applicant: CATERPILLAR INC. ,  KIM, Hoisan ,  SOMMARS, Mark, F.

Inventor： KIM, Hoisan ,  SOMMARS, Mark, F.

IPC: F02M43/04 ,  F02D19/06 ,  F02M37/00 ,  F02M61/16

CPC classification number: F02M43/04 ,  F02D19/0694 ,  F02D19/10 ,  Y02T10/36

Abstract: A dual fuel injector (12) includes an injector body (70) that defines a liquid fuel inlet (57) fluidly connected to a liquid nozzle chamber (99), a gas fuel inlet (48) fluidly connected to a gas nozzle chamber (91), and a tip component (71) that defines a liquid nozzle outlet set (96) and a gas nozzle outlet set (90). A liquid needle valve member (78) is guided in the injector body (70) to move between positions in and out of contact with a first valve seat (180) positioned between the liquid nozzle chamber (99) and the liquid nozzle outlet set (96). A gas needle valve member (73) is guided in the injector body (70) to move between positions in and out of contact with a second valve seat (181) positioned between the gas nozzle chamber (91) and the gas nozzle outlet set (90). A hydraulic lock seal (93) for inhibiting migration of gas fuel from the gas nozzle chamber (91) into the first fuel includes an annular volume (191) surrounding a guide segment (74) of the gas needle valve member (73). The annular volume (191) is fluidly connected to the liquid nozzle volume (99) by a seal passage (190). A check valve (200) is positioned in the seal passage (190) and is movable to a closed positioned responsive to a pressure differential between liquid fuel in the liquid nozzle chamber (99) and gas fuel in the gas nozzle chamber (91) in the tip component (71). The check valve (200) may close when a gas fuel supply is exhausted and an engine (5) utilizing the dual fuel injector (12) operates in a limp home single fueling mode.

Abstract translation: 双燃料喷射器（12）包括喷射器主体（70），其限定与液体喷嘴室（99）流体连接的液体燃料入口（57），与气体喷嘴室（91）流体连接的气体燃料入口 ）和限定液体喷嘴出口组（96）和气体喷嘴出口组（90）的尖端部件（71）。 液体针阀构件（78）在喷射器主体（70）中被引导以在与位于液体喷嘴室（99）和液体喷嘴出口组（100）之间的第一阀座（180）接触和不接触的位置之间移动 96）。 气体针阀构件（73）在喷射器主体（70）中被引导以在与位于气体喷嘴室（91）和气体喷嘴出口组（21）之间的第二阀座（181）接触和不接触的位置之间移动 90）。 用于抑制气体燃料从气体喷嘴室（91）向第一燃料的迁移的液压锁紧密封件（93）包括围绕气针阀构件（73）的引导段（74）的环形容积（191）。 环形体积（191）通过密封通道（190）与液体喷嘴体积（99）流体连接。 止回阀（200）定位在密封通道（190）中，并且可响应于液体喷嘴室（99）中的液体燃料与气体喷嘴室（91）中的气体燃料之间的压差而移动到闭合位置 尖端部件（71）。 当气体燃料供应被排出时，止回阀（200）可以关闭，并且利用双重燃料喷射器（12）的发动机（5）以跛脚的单次燃料供给模式运行。

公开(公告)号：WO2013070882A1

公开(公告)日：2013-05-16

申请号：PCT/US2012/064104

申请日：2012-11-08

Applicant: CATERPILLAR INC.

Inventor： KIM, Hoisan ,  SOMMARS, Mark, F. ,  DING, Xiangdong ,  COLDREN, Dana

IPC: F02D19/08 ,  F02M41/00 ,  F02M55/02 ,  F02M61/16 ,  F02M61/18

CPC classification number: F02D19/0647 ,  F02D19/024 ,  F02D19/0694 ,  F02D19/081 ,  F02M43/04 ,  F02M45/086 ,  F02M47/027 ,  F02M55/02 ,  F02M63/0019 ,  F02M63/0033 ,  F02M63/0045 ,  F02M63/0061 ,  F02M63/0064 ,  F02M63/029 ,  F02M2200/44 ,  F02M2200/46 ,  Y02T10/32 ,  Y02T10/36

Abstract: A dual fuel system (10) includes a plurality of fuel injectors (12) that each have a non-injection configuration, a liquid fuel injection configuration, a gaseous fuel injection configuration and a combined fuel injection configuration. Each of the fuel injectors (12) includes a liquid control valve member (140) with a guide segment (141) that defines a portion of a leak path (148) from a liquid fuel inlet (33) to a drain outlet (77), and a gas control valve member (160) with a guide segment (141) that defines a second leak path (168) from the liquid fuel inlet (33) to the drain outlet (77). Each injector body (70) includes a tip component (71) that defines both a liquid nozzle outlet set (90) and a gas nozzle outlet set (99). A dual solenoid actuator (100) has a first armature (107) coupled to the liquid control valve member (140, a second armature (1087) coupled to the gas control valve member (160), and a shared stator (103).

Abstract translation: 双燃料系统（10）包括多个燃料喷射器（12），每个燃料喷射器具有非喷射配置，液体燃料喷射配置，气体燃料喷射配置和组合燃料喷射配置。 每个燃料喷射器（12）包括液体控制阀构件（140），其具有限定从液体燃料入口（33）到排出口（77）的泄漏路径（148）的一部分的引导段（141） ，以及具有限定从液体燃料入口（33）到排出口（77）的第二泄漏路径（168）的引导段（141）的气体控制阀构件（160）。 每个喷射器主体（70）包括限定液体喷嘴出口组（90）和气体喷嘴出口组（99）的尖端部件（71）。 双螺线管致动器（100）具有联接到液体控制阀构件（140，耦合到气体控制阀构件（160）的第二电枢（1087））和共享定子（103）的第一电枢（107）。

公开(公告)号：WO2009017581A1

公开(公告)日：2009-02-05

申请号：PCT/US2008/008418

申请日：2008-07-09

Applicant: CATERPILLAR INC. ,  GIBSON, Dennis, H. ,  SOMMARS, Mark, F. ,  SUN, Jin, Hui ,  KIM, Hoisan

Inventor： GIBSON, Dennis, H. ,  SOMMARS, Mark, F. ,  SUN, Jin, Hui ,  KIM, Hoisan

IPC: F02M47/02 ,  F02M61/12 ,  F02M61/20

CPC classification number: F02M61/12 ,  F02M47/027 ,  F02M61/20

Abstract: A fuel injector (32) is provided having a needle valve element (46) and a nozzle member (44) with a central bore (70) configured to slidingly receive the needle valve element. The fuel injector (32) also has a spring (84) configured to bias the needle valve element (46) toward a closed position. In addition, the fuel injection assembly has a guide element (76) configured to reduce a lateral movement of the needle valve element (46). The fuel injection assembly further has a fluid flow restricting device (78) configured to restrict the flow of a fluid through the needle valve element (46) and create a fluid pressure differential between the fluid upstream and downstream of the fluid flow restricting device (78).

Abstract translation: 燃料喷射器（32）设置有具有针阀元件（46）和喷嘴构件（44），中心孔（70）构造成滑动地容纳针阀元件。 燃料喷射器（32）还具有弹簧（84），该弹簧构造成朝着关闭位置偏压针阀元件（46）。 另外，燃料喷射组件具有构造成减小针阀元件（46）的横向运动的引导元件（76）。 燃料喷射组件还具有流体流动限制装置（78），其被配置为限制流体通过针阀元件（46）的流动并且在流体流动限制装置（78）的上游和下游之间产生流体压力差 ）。

公开(公告)号：WO2007055805A1

公开(公告)日：2007-05-18

申请号：PCT/US2006/036727

申请日：2006-09-20

Applicant: CATERPILLAR INC. ,  GIBSON, Dennis, H. ,  SOMMARS, Mark, F. ,  SUN, Jinhui

Inventor： GIBSON, Dennis, H. ,  SOMMARS, Mark, F. ,  SUN, Jinhui

IPC: F02M45/04 ,  F02M63/02 ,  F02M47/02 ,  F02M63/00

CPC classification number: F02M63/0026 ,  F02M45/04 ,  F02M47/027 ,  F02M63/0045 ,  F02M63/0225 ,  F02M2200/40

Abstract: A fuel system (12) for a work machine (5) is disclosed. The fuel system has a fuel injector (32), a first source (30a) of fuel at a first pressure, a second source (30b) of fuel at a second pressure, and a pressure control device (102). The pressure control device is disposed between the fuel injector and the first and second sources. The pressure control device is configured to selectively direct the fuel at the first pressure and the fuel at the second pressure to the fuel injector.

Abstract translation: 公开了一种用于作业机（5）的燃料系统（12）。 燃料系统具有燃料喷射器（32），处于第一压力的燃料的第一源（30a），第二压力下的燃料的第二源（30b）和压力控制装置（102）。 压力控制装置设置在燃料喷射器与第一和第二源之间。 压力控制装置构造成选择性地将第一压力下的燃料和第二压力的燃料引导到燃料喷射器。

公开(公告)号：WO2013096278A1

公开(公告)日：2013-06-27

申请号：PCT/US2012/070292

申请日：2012-12-18

Applicant: CATERPILLAR INC.

Inventor： SOMMARS, Mark, F. ,  KIM, Hoisan ,  DING, Xiangdong

IPC: F02M43/00 ,  F02M61/10 ,  F02M61/16 ,  F02D19/06

CPC classification number: F02M43/04 ,  F02D19/0647 ,  F02D19/0689 ,  F02D19/0694 ,  F02M43/00 ,  F02M55/004 ,  F02M55/008 ,  F02M2200/46 ,  Y02T10/36

Abstract: A dual fuel common rail fuel injector (12) includes a first and second check needle used to selectively inject two different fuels such as diesel and liquefied natural gas. The fuel injector (12) includes a fuel separator (71) disposed in the interior cavity of the first check needle and is in sealing contact with the nozzle. The fuel separator (71) is configured to prevent commingling of the diesel fuel and the liquefied natural gas. The fuel injector (12) also includes at least one sealing member (250) that is configured to prevent the diesel fuel from leaking from the diesel fuel check cavity (66) into a gaseous fuel orifice.

Abstract translation: 双燃料共轨燃料喷射器（12）包括用于选择性地喷射两种不同燃料（例如柴油和液化天然气）的第一和第二检查针。 燃料喷射器（12）包括设置在第一检查针的内腔中并与喷嘴密封接触的燃料分离器（71）。 燃料分离器（71）构成为防止柴油与液化天然气的混合。 燃料喷射器（12）还包括至少一个密封构件（250），其被构造成防止柴油燃料从柴油燃料检查空腔（66）泄漏到气体燃料孔口中。

公开(公告)号：WO2011156303A3

公开(公告)日：2011-12-15

申请号：PCT/US2011/039357

申请日：2011-06-07

Applicant: CATERPILLAR INC. ,  KIM, Hoisan ,  SOMMARS, Mark, F. ,  WILLI, Martin, L.

Inventor： KIM, Hoisan ,  SOMMARS, Mark, F. ,  WILLI, Martin, L.

IPC: F02M21/02 ,  F02B43/02 ,  F02D19/02 ,  F02M35/10

Abstract: A gaseous fuel internal combustion engine (10) includes an engine housing (12) defining at least one cylinder (14), and an intake housing (18) defining an intake passage (20) fluidly connecting with the at least one cylinder (14). The engine (10) includes a gaseous fuel delivery mechanism (13) coupled with the engine housing (12) and a distributed ignition promoting mechanism (22) having a bead presentation device (24) extending into the intake passage (20) and configured to present a liquid bead of distributed ignition promoting material (100) therein such as engine lubricating oil. During operation, gases passing through the intake passage (20) dislodge the liquid bead from the bead presentation device (22) and carry the distributed ignition promoting material (100) into the cylinder (14) for distributively igniting therein a mixture containing a gaseous fuel, air and the distributed ignition promoting material (100).