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1. 发明公开

US20240117784A1 FUEL INJECTION DEVICE 审中-公开
公开(公告)号：US20240117784A1
公开(公告)日：2024-04-11
申请号：US18260689
申请日：2021-12-27
申请人： Robert Bosch GmbH
发明人： Alexander Fuchs , Christoph Eduard Kammerer , Helmut Giessauf , Martin Bernhaupt , Walter Walkner
IPC分类号： F02M63/02 , F02M37/00
CPC分类号： F02M63/0275 , F02M37/0041 , F02M2200/28 , F02M2200/40
摘要： The invention relates to a fuel injection device (100) for a compression-ignition engine, comprising a first storage unit (20) which can be supplied with fuel by at least one high-pressure pump (16), the first storage unit (20) being arranged preferably inside the high-pressure pump (16), a first connecting line (26) from the first storage unit (20) to a second storage unit (30), and a second connecting line (40) from the second storage unit (30) to a fuel injector (50).

2. 发明授权

US11713740B1 High-pressure common rail fuel injector capable of achieving highly stable injection based on throttling damping accommodating effect 有权
公开(公告)号：US11713740B1
公开(公告)日：2023-08-01
申请号：US17958910
申请日：2022-10-03
申请人： HARBIN ENGINEERING UNIVERSITY
发明人： Jianhui Zhao , Jingyan Chen , Heng Zhang , Shuo Chen
IPC分类号： F02M55/04 , F02M63/02 , F02M61/10 , F02M47/02 , F02M61/16
CPC分类号： F02M55/04 , F02M47/027 , F02M61/10 , F02M63/0275 , F02M61/16 , F02M2200/28 , F02M2200/315 , F02M2200/40
摘要： The present disclosure provides a high-pressure common rail fuel injector capable of achieving highly stable injection based on the throttling damping-accommodating effect in the present disclosure, comprising a fuel injector housing, a fuel pipe connector, an accumulator chamber, a fuel chamber control valve, a pressure fluctuation absorption assembly, a control valve assembly and a nozzle assembly; the accumulator chamber is installed in the fuel injector housing, and the fuel pipe connector is installed above the accumulator chamber; the fuel chamber control valve, the pressure fluctuation absorption assembly and the control valve assembly are installed in the fuel injector housing, and the nozzle assembly is arranged below the control valve assembly; and the accumulator chamber is separated into a main accumulator chamber, an auxiliary accumulator chamber and a fuel-return accumulator chamber.

3. 发明授权

US11692520B2 Fuel injector including valve seat plate having stress-limiting groove 有权
公开(公告)号：US11692520B2
公开(公告)日：2023-07-04
申请号：US16990398
申请日：2020-08-11
申请人： Caterpillar Inc.
发明人： Cory A. Brown
IPC分类号： F02M47/02 , F02M51/06 , F02M55/00 , F02M61/20 , F02M61/04
CPC分类号： F02M51/0632 , F02M47/027 , F02M51/0628 , F02M55/004 , F02M55/008 , F02M61/045 , F02M61/20 , F02M2200/28
摘要： A fuel injector includes an injector body and a valve stack within the injector body that includes a valve seat plate. The valve seat plate includes a pressure control passage for controlling fuel injection, and a valve seat positioned fluidly between the pressure control passage and a low-pressure drain. The valve seat plate includes a pressure-limiting annular groove that extends circumferentially around the valve seat and axially inward from a side of the valve seat plate where the valve seat is located. The groove enables deformation in response to pressure differences across the valve seat plate in a manner that limits stress concentrations.

4. 发明授权

US10036334B2 Fuel valve for injecting gaseous fuel into a combustion chamber of a self-igniting internal combustion engine and method 有权
公开(公告)号：US10036334B2
公开(公告)日：2018-07-31
申请号：US15515647
申请日：2015-10-12
申请人： MAN Diesel & Turbo, filial af MAN Diesel & Turbo SE, Tyskland
发明人： Johan Sjöholm , Johan Hult
IPC分类号： F02M21/02 , F02M43/00 , F02M51/00 , F02D19/06 , F02D19/10 , F02M43/04 , F02M67/14 , F02B37/00
CPC分类号： F02D19/0647 , F02B7/06 , F02B19/108 , F02B25/04 , F02B37/00 , F02B43/00 , F02D19/066 , F02D19/0689 , F02D19/0692 , F02D19/0694 , F02D19/105 , F02M21/0251 , F02M21/0275 , F02M43/04 , F02M47/046 , F02M67/14 , F02M2200/16 , F02M2200/28 , Y02T10/144 , Y02T10/32 , Y02T10/36
摘要： A fuel valve includes a housing, a nozzle with nozzle holes opening to a volume inside the nozzle at the front end of the housing, a gaseous fuel inlet port in the housing connected to high pressure gaseous fuel, an axially displaceable valve needle received in a longitudinal bore in the housing, and rests on a valve seat in a closed position and has lift from the valve seat in an open position, the valve seat placed between a fuel chamber and an outlet port, the fuel chamber connected to the fuel inlet port, the outlet port connected to the volume in the nozzle, an actuator system for moving the needle between the closed and open positions, an ignition liquid inlet port connected to high pressure ignition liquid, and a conduit connecting the ignition liquid inlet port to the fuel chamber, the conduit including a fixed flow restriction.

5. 发明授权

US10018169B2 Nozzle assembly for a fuel injector, and fuel injector 有权
公开(公告)号：US10018169B2
公开(公告)日：2018-07-10
申请号：US15313585
申请日：2015-04-13
申请人： Robert Bosch GmbH
发明人： Andreas Koeninger
IPC分类号： F02M61/20
CPC分类号： F02M61/20 , F02M61/205 , F02M2200/28
摘要： A nozzle assembly for a fuel injector includes a nozzle needle (1), which is accommodated in a high-pressure bore (2) of a nozzle body (3) in such a way that the nozzle needle can be moved in a reciprocating manner in order to open and close at least one injection opening (4) and to which a spring force of a spring (5) is applied at least indirectly in a closing direction. The nozzle needle (1) is at least partially surrounded by a throttle bore body (7) in order to form at least one closing throttle (6). The throttle bore body (7) has a multi-part design and comprises at least two sleeves (7.1, 7.2), which are at least partially guided in each other.

6. 发明授权

US09523437B2 Electromagnetic actuator 有权
标题翻译：电磁执行器
公开(公告)号：US09523437B2
公开(公告)日：2016-12-20
申请号：US14004216
申请日：2012-03-08
申请人： Ronald Pott , Gerhardt Ohlendorf , Stefan Solterbeck , Hergen Ruetemann , Armin Beck , Wolfram Maiwald , Gerhard Theissl , Emil Lambauerl
发明人： Ronald Pott , Gerhardt Ohlendorf , Stefan Solterbeck , Hergen Ruetemann , Armin Beck , Wolfram Maiwald , Gerhard Theissl , Emil Lambauerl
IPC分类号： F16K31/04 , F16K31/06 , H01F7/16 , F02M63/00 , F02M63/02 , H02K33/02
CPC分类号： F16K31/04 , F02M63/0015 , F02M63/0036 , F02M63/0043 , F02M63/0052 , F02M63/025 , F02M2200/28 , F02M2200/304 , F16K31/0665 , F16K31/0693 , H01F7/1638 , H02K33/02
摘要： The invention is an electromagnetic actuator with a magnet coil arranged in a housing and with an armature plate, which is movable by energization of the magnet coil in an armature plate space in the direction of a front end of the housing and which is connected to an armature plunger, which at one end is guided through the housing and protrudes into a control space; according to the invention the armature plate is formed with at least one axial pressure compensation bore so as to produce pressure compensation between the armature plate space and the control space, and the housing has at least one bearing with at least one axial groove, in which the armature plunger is mounted movably.
摘要翻译：本发明是一种电磁致动器，其具有布置在壳体中的电磁线圈和电枢板，电枢板可通过在电枢板空间中沿着壳体前端的方向通电电磁线圈而移动，电枢柱塞，其一端被引导通过壳体并突出到控制空间中; 根据本发明，电枢板形成有至少一个轴向压力补偿孔，以在电枢板空间和控制空间之间产生压力补偿，并且壳体具有至少一个具有至少一个轴向槽的轴承，其中电枢柱塞可移动地安装。

7. 发明申请

US20160010609A1 DEVICE FOR INJECTING FUEL INTO THE COMBUSTION CHAMBER OF AN INTERNAL COMBUSTION ENGINE 有权
标题翻译：将燃料注入内燃机的燃烧室的装置
公开(公告)号：US20160010609A1
公开(公告)日：2016-01-14
申请号：US14767653
申请日：2014-02-19
申请人： Ganser-Hydromag AG
发明人： Marco GANSER
IPC分类号： F02M61/04 , F02M67/10
CPC分类号： F02M61/04 , F02M47/027 , F02M55/005 , F02M55/008 , F02M61/165 , F02M67/10 , F02M2200/28 , F02M2200/40
摘要： The housing (18) of the fuel injection valve (10) of the device for intermittently injecting fuel into the combustion chamber of an internal combustion engine comprises a high-pressure inlet (34) with a conical sealing face (44). The high-pressure chamber (36) is disposed in the housing (18) from the high-pressure inlet (34). A cartridge-like, independent component (56) is inserted into the high-pressure chamber (36). Said component comprises the valve carrier (46), the non-return valve (48), the holding element (50), and preferably the filter body (52′). The valve carrier (46) is provided with a conical outer sealing face (69), by which the valve carrier rests against the conical sealing face (44). A fixing element (74) presses the supply line (16) against the valve carrier (46).
摘要翻译：用于将燃料间歇地喷射到内燃机的燃烧室中的燃料喷射阀（10）的壳体（18）包括具有锥形密封面（44）的高压入口（34）。高压室（36）从高压入口（34）设置在壳体（18）中。筒状独立部件（56）插入高压室（36）中。所述部件包括阀载体（46），止回阀（48），保持元件（50），优选地为过滤器主体（52'）。阀载体（46）设置有锥形外密封面（69），阀托架抵靠锥形密封面（44）。固定元件（74）将供给管线（16）压靠在阀载体（46）上。

8. 发明授权

US09169815B2 High-pressure fuel supply apparatus for internal combustion engine 有权
标题翻译：用于内燃机的高压燃料供应装置
公开(公告)号：US09169815B2
公开(公告)日：2015-10-27
申请号：US12743056
申请日：2008-11-14
申请人： Tatsuhiko Akita , Mitsuto Sakai
发明人： Tatsuhiko Akita , Mitsuto Sakai
IPC分类号： F02M37/00 , F02M59/46 , F02M63/02 , F02M55/00 , F02M55/02
CPC分类号： F02M59/462 , F02M37/0052 , F02M37/0058 , F02M55/002 , F02M55/007 , F02M55/02 , F02M63/0225 , F02M63/0245 , F02M2200/18 , F02M2200/28
摘要： 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.
摘要翻译：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。

9. 发明申请

US20140252109A1 ANTI-CAVITATION THROTTLE FOR INJECTOR CONTROL VALVE 有权
标题翻译：用于喷射器控制阀的防渗孔
公开(公告)号：US20140252109A1
公开(公告)日：2014-09-11
申请号：US13792622
申请日：2013-03-11
申请人： Stanadyne Corporation
发明人： Mark S. CAVANAGH
IPC分类号： F02M61/18
CPC分类号： F02M63/0056 , F02M47/027 , F02M61/10 , F02M61/12 , F02M63/0005 , F02M2200/04 , F02M2200/28
摘要： A needle type fuel injector has a needle control chamber at a pressure subject to a control valve in a control valve chamber which in an opening phase is lifted from its seat to expose the control valve chamber, connecting passage, and needle control chamber to a low pressure drain and in a closing phase is urged against the seat to isolate the control valve chamber, connecting passage, and needle control chamber from the drain. The potential for cavitation at high fuel injection pressure is reduced by throttling the flow of fuel past the control valve seat when the control valve opens, thereby maintaining sufficient back pressure in the control valve chamber and upstream connecting passages.
摘要翻译：针式燃料喷射器具有在控制阀室内受到控制阀的压力的针控制室，在控制阀室中，打开阶段从其座椅抬起以将控制阀室，连接通道和针控制室暴露于低位压力排放并且在关闭阶段被推靠在座上以将控制阀室，连接通道和针控制室与排水管隔离开来。当控制阀打开时，通过节流燃油经过控制阀座的流量来减少在高燃料喷射压力下的气蚀的可能性，从而在控制阀室和上游连接通道中保持足够的背压。

10. 发明申请

US20140158797A1 FUEL INJECTOR EQUIPPED WITH A METERING SERVOVALVE FOR AN INTERNAL COMBUSTION ENGINE 有权
标题翻译：燃油喷射器配有内燃机的计量服务器
公开(公告)号：US20140158797A1
公开(公告)日：2014-06-12
申请号：US13708963
申请日：2012-12-08
申请人： Mario Ricco , Raffaele Ricco , Sergio Stucchi , Onofrio De Michele
发明人： Mario Ricco , Raffaele Ricco , Sergio Stucchi , Onofrio De Michele
IPC分类号： F02M63/00
CPC分类号： F02M63/0031 , F02M47/027 , F02M63/004 , F02M63/0042 , F02M63/007 , F02M63/008 , F02M2200/16 , F02M2200/27 , F02M2200/28 , F02M2547/003
摘要： A fuel injector has an injector body and a control rod, which is movable in the injector body along an axis to control the opening/closing of a nozzle that injects fuel into a cylinder of the engine; the injector body houses a metering servovalve having a control chamber, which is axially delimited by the control rod and communicates with an inlet and with a discharge channel; the metering servovalve is provided with a shutter, which slides axially on an axial guide, from which the discharge channel exits, to open and close the discharge channel and, in consequence, vary the pressure in the control chamber; the discharge channel has three restrictions having calibrated passage sections and arranged in series with each other to divide the pressure drop along the discharge channel.
摘要翻译：燃料喷射器具有喷射器主体和控制杆，其可以沿着轴线在喷射器主体中移动，以控制将燃料喷射到发动机气缸中的喷嘴的打开/关闭; 注射器主体容纳具有控制室的计量伺服阀，该控制室由控制杆轴向限定并与入口和排放通道连通; 计量伺服阀设有挡板，其在轴向引导件上轴向滑动，排放通道从该导向器滑出，以打开和关闭排放通道，并因此改变控制室中的压力; 排出通道具有三个限制，具有校准的通道部分并且彼此串联布置以沿着排出通道分开压降。

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