公开(公告)号：US20240247627A1

公开(公告)日：2024-07-25

申请号：US18561265

申请日：2022-05-26

Applicant: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.

Inventor： Hisao OGAWA ,  Yosuke KITAMURA

IPC: F02M55/02 ,  F02M55/00

CPC classification number: F02M55/02 ,  F02M55/002

Abstract: This fuel pressure accumulating device comprises: a fuel pressure accumulating unit inside which a pressure accumulating space is provided; a fuel inflow unit which is fitted to the fuel pressure accumulating unit and through which fuel can flow into the pressure accumulating space; a fuel outflow unit which is fitted to the fuel pressure accumulating unit and through which the fuel can flow from the pressure accumulating space; and a fuel storage unit which is provided in the fuel pressure accumulating unit, and which stores fuel that has leaked to a position in the fuel pressure accumulating unit where the fuel inflow unit is fitted, and a position in the fuel pressure accumulating unit where the fuel outflow unit is fitted.

公开(公告)号：US20190128228A1

公开(公告)日：2019-05-02

申请号：US15796916

申请日：2017-10-30

Applicant: Caterpillar Inc.

Inventor： Bobby John ,  Glen Martin ,  Jonathan W. Anders ,  Robert Campion

IPC: F02M47/06 ,  F02M61/18 ,  F02M55/00

CPC classification number: F02M47/06 ,  F02M55/002 ,  F02M57/02 ,  F02M61/1886 ,  F02M63/0043 ,  F02M2200/46

Abstract: A fuel system includes a fuel injector having a fuel passage and a purging fluid passage formed therein. A nozzle tip inner surface defines a sac forming a blind end of the fuel passage in the fuel injector. A coaxial concentric check assembly includes a purging check movable to admit a purging fluid such as pressurized air into the fuel passage to purge the sac of fuel. Reduced injector dribble is observed from the purging of fuel.

公开(公告)号：US09964083B2

公开(公告)日：2018-05-08

申请号：US13984828

申请日：2012-01-24

Applicant: Kjell Eklund ,  Mikael Troberg ,  Anton Wintersteller ,  Vesa Voutilainen

Inventor： Kjell Eklund ,  Mikael Troberg ,  Anton Wintersteller ,  Vesa Voutilainen

IPC: F02M55/00 ,  F02M65/00 ,  F02M55/02 ,  F02M55/04 ,  F02M63/02 ,  F02M37/00 ,  F02M47/02 ,  F02M63/00

CPC classification number: F02M55/002 ,  F02M37/0017 ,  F02M37/0047 ,  F02M37/0052 ,  F02M47/027 ,  F02M55/005 ,  F02M55/02 ,  F02M55/025 ,  F02M55/04 ,  F02M63/005 ,  F02M63/0052 ,  F02M63/025 ,  F02M65/006 ,  F02M2200/315 ,  F02M2200/40 ,  F02M2700/05

Abstract: A fuel injection system for a reciprocating engine, comprising injectors for injecting pressurized fuel into the cylinders of the engine, a high pressure pump for pressurizing fuel to be injected, a supply pipe for feeding fuel from the high pressure pump toward the injectors and feed pipes for feeding fuel from the supply pipe to the injectors. The first ends of the feed pipes are connected to the injectors and the second ends to the supply pipe. Each fuel injector is provided with a pressure accumulator.

公开(公告)号：US20150316010A1

公开(公告)日：2015-11-05

申请号：US14440396

申请日：2013-10-24

Applicant: Delphi International Operations Luxembourg S.A.R.L

Inventor： Anthony Lewis ,  Craig Iliffe ,  Peter Lloyd ,  Mark S. Graham

IPC: F02M55/00 ,  F02M53/04 ,  F02M63/00

CPC classification number: F02M55/007 ,  F02M47/027 ,  F02M53/046 ,  F02M55/002 ,  F02M63/0015 ,  F02M63/0045 ,  Y10T137/5762

Abstract: The present invention relates to a 3-way valve assembly (102; 202; 302) for a fuel injector (101; 201; 301). The valve assembly (102; 202; 302) includes a valve body (103; 203; 303), a movable valve member (104; 204; 304), and an armature (113; 213; 313) for actuating the valve member (104; 204; 304). The armature (113; 213; 313) is disposed in an armature cavity (115; 215; 315). The valve member (104; 204; 304) is configured to control an operating pressure in a control chamber (105). The valve body (103; 203; 303) includes a bore (117; 217; 317) in which the valve member (104; 204) is disposed. A leak vent (121; 221) is provided for venting fuel leaking through the bore (117; 217) past said valve member (104; 204). In an alternate embodiment, a partitioning member (333) is disposed in the armature cavity (315).

Abstract translation: 本发明涉及一种用于燃料喷射器（101; 201; 301）的三通阀组件（102; 202; 302）。 阀组件（102; 202; 302）包括阀体（103; 203; 303），可动阀构件（104; 204; 304）和用于致动阀构件的电枢（113; 213; 313） 104; 204; 304）。 电枢（113; 213; 313）设置在电枢腔（115; 215; 315）中。 阀构件（104; 204; 304）构造成控制控制室（105）中的操作压力。 阀体（103; 203; 303）包括其中设置有阀构件（104; 204）的孔（117; 217; 317）。 提供泄漏孔（121; 221），用于排出通过所述孔（117; 217）经过所述阀构件（104; 204）的泄漏的燃料。 在替代实施例中，分配构件（333）设置在电枢腔（315）中。

公开(公告)号：US09175652B2

公开(公告)日：2015-11-03

申请号：US13262835

申请日：2010-03-12

Applicant: Thomas Pauer ,  Andreas Rettich ,  Markus Rueckle

Inventor： Thomas Pauer ,  Andreas Rettich ,  Markus Rueckle

IPC: B05B1/30 ,  F02M51/00 ,  F02M55/00 ,  F02M47/02

CPC classification number: F02M55/002 ,  F02M47/027 ,  F02M51/005

Abstract: The invention relates to a fuel injection device for injecting fuel into a combustion chamber of an internal combustion engine, comprising an end (6) that is located at a distance from the combustion chamber and has at least one electric connection (33) and at least one return flow connection (40). In order to create a fuel injection device (1) that has a simple design and can be produced cost-effectively, the return flow connection (40) and the electric connection (33) are integrated in a common connecting member.

Abstract translation: 本发明涉及一种用于将燃料喷射到内燃机的燃烧室中的燃料喷射装置，包括位于离燃烧室一定距离处并具有至少一个电连接（33）的端部（6） 一个回流连接（40）。 为了形成具有简单设计并且可以经济有效地制造的燃料喷射装置（1），回流连接（40）和电连接（33）集成在公共连接构件中。

公开(公告)号：US09169815B2

公开(公告)日：2015-10-27

申请号：US12743056

申请日：2008-11-14

Applicant: Tatsuhiko Akita ,  Mitsuto Sakai

Inventor： Tatsuhiko Akita ,  Mitsuto Sakai

IPC: F02M37/00 ,  F02M59/46 ,  F02M63/02 ,  F02M55/00 ,  F02M55/02

CPC classification number: F02M59/462 ,  F02M37/0052 ,  F02M37/0058 ,  F02M55/002 ,  F02M55/007 ,  F02M55/02 ,  F02M63/0225 ,  F02M63/0245 ,  F02M2200/18 ,  F02M2200/28

Abstract: A discharge valve (30) is provided in a high-pressure fuel passage (31) to allow fuel to pass through the discharge valve (30) only in a direction from a high-pressure fuel pump (20) toward a delivery pipe (50). A communication passage (41) with an orifice (42) is formed integrally with the discharge valve (30) in parallel with the discharge valve (30) to connect areas upstream and downstream of the discharge valve (30). When a fuel pressure in the delivery pipe (50) is increased to a target pressure using the high-pressure fuel pump (20), an amount of the fuel, which does not interfere with an increase in the fuel pressure, flows through the orifice (42). A check valve (40) is provided in the communication passage (41), and opened to allow the fuel to pass through the check valve (40) only in the direction from the delivery pipe (50) toward the high-pressure fuel pump (20), when the fuel pressure is higher than a first predetermined pressure.

Abstract translation: 排气阀（30）设置在高压燃料通路（31）中，以使得燃料仅在从高压燃料泵（20）朝向输送管（50）的方向通过排出阀（30） ）。 具有孔口（42）的连通通道（41）与排放阀（30）一体地与排放阀（30）平行地形成，以连接排出阀（30）上游和下游的区域。 当使用高压燃料泵（20）将输送管（50）中的燃料压力增加到目标压力时，不妨碍燃料压力增加的燃料的量流过孔口 （42）。 止回阀（40）设置在连通通道（41）中，并且打开以允许燃料仅在从输送管（50）朝向高压燃料泵的方向通过止回阀（40） 20），当燃料压力高于第一预定压力时。

公开(公告)号：US20150176555A1

公开(公告)日：2015-06-25

申请号：US14409257

申请日：2012-08-08

Applicant: Sergi Yudanov

Inventor： Sergi Yudanov

IPC: F02M63/00

CPC classification number: F02M63/0049 ,  F02M37/0023 ,  F02M37/0029 ,  F02M47/02 ,  F02M47/027 ,  F02M55/002 ,  F02M63/0007 ,  F02M63/0029 ,  F02M63/0033 ,  F02M63/0043 ,  F02M63/0045 ,  Y10T137/87193

Abstract: A flow control system for a fuel injector for an internal combustion engine is provided and includes an inlet port, an outlet, a return port, a 2-way control valve including a control valve member, a shuttle valve and a main valve. The control valve includes a first seat, a first resilient arrangement configured to force the control valve member towards the seat so as to close the control valve, and a first abutment that limits the lift of the control valve member away from the first seat. The first seat of the control valve is slidably arranged in the shuttle control chamber. An end stop for the first seat is provided such that the pressure in a shuttle control chamber tends to move the first seat towards the end stop. The first seat, upon its mechanical contact with a valve member is able to transmit at least a part of the force of the resilient means onto a shuttle valve body in the opening direction of the shuttle valve.

Abstract translation: 提供了一种用于内燃机的燃料喷射器的流量控制系统，包括入口，出口，返回口，包括控制阀构件，梭阀和主阀的二通控制阀。 控制阀包括第一座，第一弹性装置，其构造成迫使控制阀构件朝向座椅以便关闭控制阀;以及第一邻接，其限制控制阀构件的升力远离第一座。 控制阀的第一座可滑动地布置在梭控制室中。 提供第一座椅的止挡件，使得梭子控制室中的压力倾向于使第一座椅朝向端部挡块移动。 第一座椅在与阀构件的机械接触时能够将弹性装置的力的至少一部分传递到梭阀的打开方向上的梭阀体上。

公开(公告)号：US09038601B2

公开(公告)日：2015-05-26

申请号：US13666525

申请日：2012-11-01

Applicant: CUMMINS INC.

Inventor： Corydon E. Morris ,  David L. Buchanan

IPC: F02M61/00 ,  F02M63/00 ,  F02M63/02 ,  F02M55/00 ,  F02M51/06 ,  F02M61/16

CPC classification number: F02M61/161 ,  F02M47/027 ,  F02M51/061 ,  F02M55/002 ,  F02M59/366 ,  F02M63/0056 ,  F02M63/0215 ,  F02M63/0225

Abstract: A flow limiter for a fuel system is provided. The flow limiter includes a self-contained portion that enables testing of the flow limiter prior to assembly into a fuel system. A housing of the flow limiter is arranged to provide reduced or no pressure differential across a wall of the housing, permitting the housing to be reduced in size and thickness and providing improved consistency of operation.

Abstract translation: 提供了用于燃料系统的流量限制器。 流量限制器包括独立部分，其能够在组装到燃料系统之前测试流量限制器。 流量限制器的壳体布置成在壳体的壁上提供减小的或没有压力差，允许壳体的尺寸和厚度减小并且提供改进的操作一致性。

公开(公告)号：US08752527B2

公开(公告)日：2014-06-17

申请号：US13104949

申请日：2011-05-10

Applicant: Joseph Worthington ,  Thomas O. Hahn ,  Vijay Sonawane ,  Prasad Khedekar ,  Dave Richter ,  Josh Knight

Inventor： Joseph Worthington ,  Thomas O. Hahn ,  Vijay Sonawane ,  Prasad Khedekar ,  Dave Richter ,  Josh Knight

IPC: F02M55/02

CPC classification number: F02M55/02 ,  F02D2041/225 ,  F02M55/00 ,  F02M55/002 ,  F02M55/004

Abstract: This disclosure provides a fuel line assembly for use with an internal combustion engine, an internal combustion engine including such as fuel line assembly, and a method for providing leak containment and detection in a fuel system, each of which include a double-walled fuel line including a high pressure fuel line component. The double-walled fuel line includes a high pressure fuel line, a jacket surrounding the high pressure fuel line, and a low pressure passage between the high pressure fuel line and the jacket. A fuel line nut includes a main body that houses a portion of the high pressure fuel line, and a first end portion supporting an enlarged end portion of the high pressure fuel line protruding from the first end portion. A second end portion of the fuel line nut sealingly connects to the jacket to extend the low pressure passage into an area between the main body and the housed high pressure fuel line. A fuel line connector mechanically and sealingly engages with the fuel line nut to house the supported enlarged end portion of the high pressure fuel line. The fuel line connector can connect to a single-walled high pressure tube provided in a bore of the cylinder head between an inlet of a fuel injector and the environment exterior of the cylinder head.

Abstract translation: 本公开提供了一种与内燃机一起使用的燃料管路组件，包括诸如燃料管线组件的内燃机，以及用于在燃料系统中提供泄漏容纳和检测的方法，每个燃料系统包括双壁燃料管线 包括高压燃油管路部件。 双壁燃料管线包括高压燃料管线，围绕高压燃料管路的护套以及高压燃料管线和护套之间的低压通道。 燃料管螺母包括容纳高压燃料管线的一部分的主体和支撑从第一端部突出的高压燃料管线的扩大端部的第一端部。 燃料管线螺母的第二端部密封地连接到护套，以将低压通道延伸到主体和容纳的高压燃料管线之间的区域中。 燃料管路连接器机械地密封地与燃料管线螺母接合，以容纳高压燃料管线的被支撑的扩大端部。 燃料管线连接器可以连接到设置在燃料喷射器的入口和气缸盖外部之间的气缸盖的孔中的单壁高压管。

公开(公告)号：US08683979B2

公开(公告)日：2014-04-01

申请号：US13026483

申请日：2011-02-14

Applicant: Hoisan Kim ,  Mark F. Sommars

Inventor： Hoisan Kim ,  Mark F. Sommars

IPC: F02M69/46 ,  F02M69/52

CPC classification number: F02M43/00 ,  F02D19/06 ,  F02D19/0647 ,  F02D2041/227 ,  F02M21/0245 ,  F02M21/0257 ,  F02M43/04 ,  F02M55/002 ,  F02M55/005 ,  F02M61/1806 ,  F02M63/0225 ,  F02M63/023 ,  Y02T10/36

Abstract: A dual fuel system for an engine includes a plurality of fuel injectors that each include an injector body with a tip component defining a plurality of gas nozzle outlets and a plurality of liquid nozzle outlets positioned for direct injection into one of the engine cylinders. Each of the fuel injectors is fluidly connected to a gaseous fuel common rail through a quill and an outer passage defined between an inner tube and an outer tube. Each of the fuel injectors is fluidly connected to a liquid fuel common rail through the quill and an inner passage defined by the inner tube. Each combination of an inner tube and outer tube extend into the engine housing between the quill and one of the fuel injectors. Each of the inner tubes extends through one of the outer tubes and is compressed between a conical seat on the quill and a conical seat on one of the fuel injectors.

Abstract translation: 用于发动机的双燃料系统包括多个燃料喷射器，每个燃料喷射器包括具有限定多个气体喷嘴出口的尖端部件的喷射器主体和定位用于直接喷射到发动机气缸之一中的多个液体喷嘴出口。 每个燃料喷射器通过套管和限定在内管和外管之间的外部通道流体连接到气体燃料共轨。 每个燃料喷射器通过套管流体地连接到液体燃料共轨，以及由内管限定的内部通道。 内管和外管的每个组合都延伸到发动机壳体内，该套管与其中一个燃料喷射器之间。 每个内管延伸穿过外管中的一个，并且被压缩在套筒上的锥形座和其中一个燃料喷射器上的锥形座上。