公开(公告)号：US20140361103A1

公开(公告)日：2014-12-11

申请号：US14470216

申请日：2014-08-27

Applicant: Caterpillar Inc.

Inventor： Hoisan Kim ,  Mark F. Sommars ,  Xiangdong Ding

IPC: F02M51/06 ,  F02M51/00

CPC classification number: F02M51/06 ,  F02D19/061 ,  F02D19/0647 ,  F02D19/0684 ,  F02D19/0689 ,  F02D19/0694 ,  F02D19/081 ,  F02M43/04 ,  F02M51/005 ,  F02M61/04 ,  F02M61/042 ,  F02M61/188 ,  F02M61/1886 ,  F02M63/0285 ,  Y02T10/36

Abstract: A fuel injector includes an injector body that defines a fuel inlet, a drain outlet and a nozzle outlet, and has disposed therein a nozzle chamber, a needle control chamber and a valve chamber. The needle control chamber is fluidly connected to the drain outlet through a drain passage that includes the conical seat, is fluidly connected to the nozzle chamber through a Z orifice, and fluidly connected to the valve chamber through an A orifice. The nozzle chamber is fluidly connected to the valve chamber by a pressure passage that includes an F orifice that opens through a flat seat. A control valve member is trapped to move between contact with conical seat and contact with the flat seat. An electrical actuator is operable to push the control valve member away from the conical seat toward the flat seat when energized. A direct control needle valve has an opening hydraulic surface positioned in the nozzle chamber and a closing hydraulic surface positioned in the needle control chamber. The fuel injector may include first and second electronically controlled valves for independently injecting a gaseous fuel and a liquid fuel.

Abstract translation: 燃料喷射器包括限定燃料入口，排出口和喷嘴出口的喷射器主体，并且其中设置有喷嘴室，针控制室和阀室。 针控制室通过包括锥形座的排水通道流体地连接到排水出口，通过Z孔流体地连接到喷嘴室，并通过A孔流体连接到阀室。 喷嘴室通过压力通道流体连接到阀室，压力通道包括通过平的座开口的F孔。 控制阀构件被捕获以在与锥形座的接触之间移动并与平的座接触。 电致动器可操作以在通电时将控制阀构件推向锥形座朝向平座。 直接控制针阀具有位于喷嘴室中的开口液压表面和位于针控制室中的关闭液压表面。 燃料喷射器可以包括用于独立地注入气态燃料和液体燃料的第一和第二电子控制阀。

公开(公告)号：US09863333B2

公开(公告)日：2018-01-09

申请号：US14604041

申请日：2015-01-23

Applicant: Caterpillar Inc.

Inventor： Hoisan Kim ,  Mark F. Sommars ,  Xiangdong Ding

IPC: F02D19/06 ,  F02D19/10 ,  F02M43/04 ,  F02M45/08 ,  F02M47/02 ,  F02M63/02 ,  F02M51/06

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 may be used to inject both gas and liquid fuel into a cylinder of a compression ignition engine. An injector body defines a first set of nozzle outlets, a second set of nozzle outlets, a first fuel inlet and a second fuel inlet. A dual solenoid actuator includes a first armature, a first coil, a second armature and a second coil that share a common centerline. The dual solenoid actuator has a non-injection configuration at which the first armature is at an un-energized position and the second armature is at an un-energized position. The dual solenoid actuator has a first fuel injection configuration at which the first fuel inlet is fluidly connected to the first set of nozzle outlets, the first armature is at an energized position and the second armature is at the un-energized position.

公开(公告)号：US09206778B2

公开(公告)日：2015-12-08

申请号：US13866481

申请日：2013-04-19

Applicant: Caterpillar, Inc.

Inventor： Hoisan Kim ,  Mark F. Sommars

IPC: F02M43/04 ,  F02M21/02 ,  F02M45/08 ,  F02D19/06 ,  F02D19/10

CPC classification number: F02M43/04 ,  F02D19/0694 ,  F02D19/10 ,  F02M21/0248 ,  F02M45/086 ,  Y02T10/36

Abstract: A dual fuel injector utilizes first and second control valves to open and close first and second nozzle outlet sets to inject a first fuel and a second fuel, respectively. The first and second fuels may be natural gas and liquid diesel, respectively. Control over liquid and diesel fuel injection events includes control lines that include F, A, and Z orifices.

Abstract translation: 双燃料喷射器利用第一和第二控制阀打开和关闭第一和第二喷嘴出口组，以分别注入第一燃料和第二燃料。 第一和第二燃料可以分别是天然气和液体柴油。 控制液体和柴油燃料喷射事件包括控制线，包括F，A和Z孔。

公开(公告)号：US09624845B2

公开(公告)日：2017-04-18

申请号：US14604091

申请日：2015-01-23

Applicant: Caterpillar Inc.

Inventor： Hoisan Kim ,  Mark F. Sommars ,  Xiangdong Ding

IPC: F02D41/30 ,  F02D19/06 ,  F02D19/10 ,  F02M43/04 ,  F02M45/08 ,  F02M47/02 ,  F02M63/02 ,  F02M51/06

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 may be used to inject both gas and liquid fuel into a cylinder of a compression ignition engine. An injector body defines a first set of nozzle outlets, a second set of nozzle outlets, a first fuel inlet and a second fuel inlet. A dual solenoid actuator includes a first armature, a first coil, a second armature and a second coil that share a common centerline. The dual solenoid actuator has a non-injection configuration at which the first armature is at an un-energized position and the second armature is at an un-energized position. The dual solenoid actuator has a first fuel injection configuration at which the first fuel inlet is fluidly connected to the first set of nozzle outlets, the first armature is at an energized position and the second armature is at the un-energized position.

公开(公告)号：US20140311455A1

公开(公告)日：2014-10-23

申请号：US13866481

申请日：2013-04-19

Applicant: CATERPILLAR, INC.

Inventor： Hoisan Kim ,  Mark F. Sommars

IPC: F02M43/04

CPC classification number: F02M43/04 ,  F02D19/0694 ,  F02D19/10 ,  F02M21/0248 ,  F02M45/086 ,  Y02T10/36

Abstract: A dual fuel injector utilizes first and second control valves to open and close first and second nozzle outlet sets to inject a first fuel and a second fuel, respectively. The first and second fuels may be natural gas and liquid diesel, respectively. Control over liquid and diesel fuel injection events includes control lines that include F, A and Z orifices.

Abstract translation: 双燃料喷射器利用第一和第二控制阀打开和关闭第一和第二喷嘴出口组，以分别注入第一燃料和第二燃料。 第一和第二燃料可以分别是天然气和液体柴油。 控制液体和柴油燃料喷射事件包括控制线，包括F，A和Z孔。

公开(公告)号：US20140165966A1

公开(公告)日：2014-06-19

申请号：US13718516

申请日：2012-12-18

Applicant: CATERPILLAR INC.

Inventor： Cory A. Brown ,  David T. Montgomery ,  Mark F. Sommars

IPC: F02M43/04

CPC classification number: F02M43/04 ,  F02M63/0042 ,  F02M63/0052 ,  Y10T137/0379 ,  Y10T137/7794

Abstract: A pressure regulator for use in an engine is disclosed. The pressure regulator may include first and second flow paths formed in a body, wherein the first flow path is configured to pass a first fluid and the second flow path is configured to receive a second fluid. A diaphragm may be disposed within the first flow path and the diaphragm may be configured to move based on a pressure differential between the first and second fluids. The pressure regulator may further include a seat associated with the first flow path. A primary valve element may be connected to the diaphragm and configured to selectively engage the seat when a pressure of the fluid in the first flow path exceeds a pressure of the fluid in the second flow path by a first threshold amount. Additionally, a secondary valve element may be connected to the diaphragm and configured to selectively engage the seat when the pressure of the fluid in the second flow path exceeds the pressure of the fluid in the first flow path by a second threshold amount.

Abstract translation: 公开了一种用于发动机的压力调节器。 压力调节器可以包括形成在主体中的第一和第二流动路径，其中第一流动路径被配置成通过第一流体，并且第二流动路径被配置成接收第二流体。 隔膜可以设置在第一流路内，并且隔膜可以构造成基于第一和第二流体之间的压差而移动。 压力调节器还可以包括与第一流动路径相关联的座椅。 主阀元件可以连接到隔膜并且构造成当第一流路中的流体的压力超过第二流动路径中的流体的压力第一阈值时，选择性地接合座。 此外，次级阀元件可以连接到隔膜并且构造成当第二流动路径中的流体的压力超过第一流动路径中的流体的压力第二阈值量时选择性地接合座椅。

公开(公告)号：US09416760B2

公开(公告)日：2016-08-16

申请号：US14470216

申请日：2014-08-27

Applicant: Caterpillar Inc.

Inventor： Hoisan Kim ,  Mark F. Sommars ,  Xiangdong Ding

IPC: B05B1/30 ,  F02M51/00 ,  F02M51/06 ,  F02M61/18 ,  F02M61/04 ,  F02M43/04 ,  F02M63/02 ,  F02D19/06 ,  F02D19/08

CPC classification number: F02M51/06 ,  F02D19/061 ,  F02D19/0647 ,  F02D19/0684 ,  F02D19/0689 ,  F02D19/0694 ,  F02D19/081 ,  F02M43/04 ,  F02M51/005 ,  F02M61/04 ,  F02M61/042 ,  F02M61/188 ,  F02M61/1886 ,  F02M63/0285 ,  Y02T10/36

Abstract: A fuel injector includes an injector body that defines a fuel inlet, a drain outlet and a nozzle outlet, and has disposed therein a nozzle chamber, a needle control chamber and a valve chamber. The needle control chamber is fluidly connected to the drain outlet through a drain passage that includes the conical seat, is fluidly connected to the nozzle chamber through a Z orifice, and fluidly connected to the valve chamber through an A orifice. The nozzle chamber is fluidly connected to the valve chamber by a pressure passage that includes an F orifice that opens through a flat seat. A control valve member is trapped to move between contact with conical seat and contact with the flat seat. An electrical actuator is operable to push the control valve member away from the conical seat toward the flat seat when energized. A direct control needle valve has an opening hydraulic surface positioned in the nozzle chamber and a closing hydraulic surface positioned in the needle control chamber. The fuel injector may include first and second electronically controlled valves for independently injecting a gaseous fuel and a liquid fuel.

Abstract translation: 燃料喷射器包括限定燃料入口，排出口和喷嘴出口的喷射器主体，并且其中设置有喷嘴室，针控制室和阀室。 针控制室通过包括锥形座的排水通道流体地连接到排水出口，通过Z孔流体地连接到喷嘴室，并通过A孔流体连接到阀室。 喷嘴室通过压力通道流体连接到阀室，压力通道包括通过平的座开口的F孔。 控制阀构件被捕获以在与锥形座的接触之间移动并与平的座接触。 电致动器可操作以在通电时将控制阀构件推向锥形座朝向平座。 直接控制针阀具有位于喷嘴室中的开口液压表面和位于针控制室中的关闭液压表面。 燃料喷射器可以包括用于独立地注入气态燃料和液体燃料的第一和第二电子控制阀。

公开(公告)号：US20150136073A1

公开(公告)日：2015-05-21

申请号：US14604091

申请日：2015-01-23

Applicant: Caterpillar Inc.

Inventor： Hoisan Kim ,  Mark F. Sommars ,  Xiangdong Ding

IPC: F02M43/04 ,  F02M51/06

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 may be used to inject both gas and liquid fuel into a cylinder of a compression ignition engine. An injector body defines a first set of nozzle outlets, a second set of nozzle outlets, a first fuel inlet and a second fuel inlet. A dual solenoid actuator includes a first armature, a first coil, a second armature and a second coil that share a common centerline. The dual solenoid actuator has a non-injection configuration at which the first armature is at an un-energized position and the second armature is at an un-energized position. The dual solenoid actuator has a first fuel injection configuration at which the first fuel inlet is fluidly connected to the first set of nozzle outlets, the first armature is at an energized position and the second armature is at the un-energized position.

公开(公告)号：US20150136072A1

公开(公告)日：2015-05-21

申请号：US14604041

申请日：2015-01-23

Applicant: Caterpillar Inc.

Inventor： Hoisan Kim ,  Mark F. Sommars ,  Xiangdong Ding

IPC: F02D19/06 ,  F02M51/06

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 may be used to inject both gas and liquid fuel into a cylinder of a compression ignition engine. An injector body defines a first set of nozzle outlets, a second set of nozzle outlets, a first fuel inlet and a second fuel inlet. A dual solenoid actuator includes a first armature, a first coil, a second armature and a second coil that share a common centerline. The dual solenoid actuator has a non-injection configuration at which the first armature is at an un-energized position and the second armature is at an un-energized position. The dual solenoid actuator has a first fuel injection configuration at which the first fuel inlet is fluidly connected to the first set of nozzle outlets, the first armature is at an energized position and the second armature is at the un-energized position.

Abstract translation: 双燃料喷射器可以用于将气体和液体燃料喷射到压缩点火发动机的气缸中。 喷射器主体限定第一组喷嘴出口，第二组喷嘴出口，第一燃料入口和第二燃料入口。 双螺线管致动器包括共享公共中心线的第一电枢，第一线圈，第二电枢和第二线圈。 双电磁致动器具有非注入构型，第一电枢处于非注入状态，第二电枢处于未通电位置。 双螺线管致动器具有第一燃料喷射构造，在该第一燃料喷射构造中，第一燃料入口流体地连接到第一组喷嘴出口，第一电枢处于通电位置，第二电枢处于未通电位置。

公开(公告)号：US09027534B2

公开(公告)日：2015-05-12

申请号：US13661461

申请日：2012-10-26

Applicant: Caterpillar Inc.

Inventor： Hoisan Kim ,  Alan Stockner ,  Mark F. Sommars

IPC: F02M21/02 ,  F02B13/00 ,  F02D19/06 ,  F02D41/00

CPC classification number: F02D41/0025 ,  F02D19/0605 ,  F02D19/0623 ,  F02D19/0647 ,  F02D19/0694 ,  F02D41/0027 ,  F02M21/0221 ,  F02M21/0239 ,  F02M21/0278 ,  Y02T10/32 ,  Y02T10/36

Abstract: A compression ignition dual fuel engine supplies natural gas fuel and liquid diesel fuel to each engine cylinder from a common fuel injector. Each fuel injector is fluidly connected to both a liquid fuel common rail and a gaseous fuel common rail. The engine includes a surplus gas system for capturing surplus gas, such as evaporated gas from the gaseous fuel supply and pressure control system, or left over pressurized natural gas produced by engine shut down. Rather than being vented to atmosphere, the surplus gas can be burned in the engine when operating conditions present burn opportunities.

Abstract translation: 压缩点火双燃料发动机从共同的燃料喷射器向每个发动机气缸供应天然气燃料和液体柴油燃料。 每个燃料喷射器流体地连接到液体燃料共轨和气体燃料共轨两者。 发动机包括用于捕获多余气体的剩余气体系统，例如来自气体燃料供应和压力控制系统的蒸发气体，或者由发动机关闭产生的加压天然气。 而不是被排放到大气中，当操作条件存在燃烧机会时，剩余气体可以在发动机中燃烧。