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1. 发明公开

EP0260720A2 High pressure unit fuel injector 失效
标题翻译： Hochdruckpump-Düseneinheit。
公开(公告)号：EP0260720A2
公开(公告)日：1988-03-23
申请号：EP87113749.3
申请日：1987-09-19
申请人： CUMMINS ENGINE COMPANY, INC.
发明人： Perr, Julius P.
IPC分类号： F02M59/30 , F02M57/02
CPC分类号： F02M59/30 , F02M57/021 , F02M57/023 , F02M57/024
摘要： A fuel injector of the open nozzle type, which is capable of achieving SAC pressures (i.e. the pressure of the fuel in the injection chamber just in front of the injector spray holes) in excess of 30,000 psi during injection. The injector assembly (11) of the preferred embodiments includes a plunger assembly (7) having three plungers (9,11,13) arranged to form a hydraulic, variable timing fluid chamber between upper (13) and intermediate (11) plungers and an injection chamber below a lower plunger (9). To prevent leakage from the injection chamber, the fuel supply passage (31) is provided, along with the injection chamber, within a one-piece injector cup (5) and a predetermined minimum seal length, at commencement of injection, between a land portion (9b) of an injection plunger (9) and a wall surface defined by a bore (6) of the injector within which it reciprocates is coordinated to the dimensions of the bore below the land and a predetermined maximum solid fuel height for the injector to result in the minimum seal length being at least one-half of the maximum solid fuel height. To obtain an increase in SAC pressures under low speed operating conditions without exceeding pressure capabilities under high speed conditions, some embodiments have valve arrangements for draining timing fluid from the timing chamber whenever the pressure of the timing fluid therein exceeds a predetermined value.
摘要翻译：能够在注射期间达到超过30,000psi的SAC压力（即喷射器喷射孔前方的喷射室中的燃料的压力）的开放喷嘴型燃料喷射器。优选实施例的喷射器组件（11）包括具有三个柱塞（9,11,13）的柱塞组件（7），其布置成在上部（13）和中间（11）柱塞之间形成液压可变定时流体室，注射室位于下部柱塞（9）下方。为了防止从注射室泄漏，在喷射开始时，燃料供给通道（31）与注射室一起设置在单件式注射器杯（5）内和预定的最小密封长度之间，（9）的喷嘴（9b）和由喷射器的孔（6）限定的壁表面，所述喷射器在其中往复运动的孔与所述凹槽下方的孔的尺寸协调，并且将喷射器的预定最大固体燃料高度导致最小密封长度为最大固体燃料高度的至少一半。为了在低速操作条件下获得SAC压力的增加而在高速条件下不超过压力能力，一些实施例具有阀门装置，用于当定时流体在其中的压力超过预定值时从定时室排出定时流体。

2. 发明授权

EP0631046B1 Individual timing and injection fuel metering system 失效
标题翻译：植物为Einspritzzeitpunkt-和喷射量控制
公开(公告)号：EP0631046B1
公开(公告)日：1997-02-26
申请号：EP94106296.0
申请日：1994-04-22
申请人： CUMMINS ENGINE COMPANY, INC.
发明人： Peters, Lester L. , Perr, Julius P. , Tarr, Yul J. , Buchanon, David L.
IPC分类号： F02M57/02 , F02M59/36 , F02M59/30 , F02M59/10
CPC分类号： F02M57/026 , F02M57/02 , F02M57/021 , F02M57/024 , F02M57/025 , F02M59/105 , F02M59/366

3. 发明授权

EP0460693B1 High pressure unit fuel injector 失效
标题翻译：高压燃油喷射。
公开(公告)号：EP0460693B1
公开(公告)日：1995-10-04
申请号：EP91109343.3
申请日：1991-06-07
申请人： CUMMINS ENGINE COMPANY, INC.
发明人： Perr, Julius P.
IPC分类号： F02M57/02 , F02M59/30
CPC分类号： F02M57/024 , F02M57/021 , F02M57/023 , F02M59/30

4. 发明公开

EP0631046A1 Individual timing and injection fuel metering system 失效
标题翻译： Anlage zur Einspritzzeitpunkt- und Einspritzmengen-Steuerung。
公开(公告)号：EP0631046A1
公开(公告)日：1994-12-28
申请号：EP94106296.0
申请日：1994-04-22
申请人： CUMMINS ENGINE COMPANY, INC.
发明人： Peters, Lester L. , Perr, Julius P. , Tarr, Yul J. , Buchanon, David L.
IPC分类号： F02M57/02 , F02M59/36 , F02M59/30 , F02M59/10
CPC分类号： F02M57/026 , F02M57/02 , F02M57/021 , F02M57/024 , F02M57/025 , F02M59/105 , F02M59/366
摘要： A metering system (10) is provided which controls the amount of fuel supplied to the combustion chambers of a multi-cylinder internal combustion engine comprising a fuel pump (12) for supplying fuel at low pressure to a first and a second group of unit fuel injectors (14,16), a first solenoid-operated fuel control valve (20) controlling the flow of fuel to the first set of injectors (14) and a second solenoid-operated fuel control valve (24) controlling the flow of fuel to the second set of injectors (16). The system may also include first and second solenoid-operated timing fluid control valves (18,22) associated with the first and the second group of injectors (14,16), respectively. The injectors are capable of being in the fuel receiving mode, establishing a metering period, and the timing receiving mode, establishing a timing period, at the same time to increase the amount of time available for metering both timing fluid and fuel. By grouping the various injectors based on the order of injection so that the injectors from each group are placed in the injection mode in spaced periods throughout each cycle of the engine, e.g. injectors from other groups injecting in the period of time between each injection mode, the system can be designed to permit longer metering and timing periods.
摘要翻译：提供了一种计量系统（10），其控制供应到多缸内燃机的燃烧室的燃料量，该多缸内燃机包括用于将低压燃料供给第一和第二组单位燃料的燃料泵（12）喷射器（14,16），控制到第一组喷射器（14）的燃料流的第一电磁操作燃料控制阀（20）和控制燃料流动的第二电磁操作燃料控制阀（24）第二组喷油器（16）。该系统还可以包括分别与第一和第二组喷射器（14,16）相关联的第一和第二电磁操作的定时流体控制阀（18,22）。喷射器能够处于燃料接收模式，建立计量周期和定时接收模式，同时建立定时周期，以增加可用于计量定时流体和燃料的时间量。通过基于喷射顺序对各种喷射器进行分组，使得来自每个组的喷射器在发动机的每个循环中以间隔的时间间隔被放置在喷射模式中。在每次注射模式之间的时间段内注入其他组的注射器，该系统可以设计成允许更长的测量和定时周期。

5. 发明公开

EP0360278A2 Electronic controlled fuel supply system for high pressure injector 失效
标题翻译：系统在einerHochdruckeinspritzdüse的Steuerung der Kraftstoffzufuhr。
公开(公告)号：EP0360278A2
公开(公告)日：1990-03-28
申请号：EP89117549.9
申请日：1989-09-22
申请人： CUMMINS ENGINE COMPANY, INC.
发明人： Peters, Lester L. , Perr, Julius P. , Smith, Edward D.
IPC分类号： F02D41/40 , F02D41/30
CPC分类号： F02D7/007 , F02B1/04 , F02B3/06 , F02D7/002 , F02D41/40 , F02D2200/0602 , F02D2250/31 , F02M57/021 , F02M57/024 , Y02T10/44
摘要： An electronically controlled fuel supply system is provided for employing a plurality of fuel injectors which maximize SAC pressures under both low speed and high speed operating conditions and are capable of sustaining SAC pressures in excess of 30,000 psi. The fuel supply system of the present invention includes a gear pump which supplies pressure-modulated fuel to a fueling channel and to a timing channel and from there to a plurality of injectors. Fuel pressure regulator means and timing fluid pressure regulator means are provided in the fueling and timing channel, respectively. An electronic control unit receives information relating to engine operating conditions from a plurality of sensors and actuates the fuel pressure regulator means and the timing fluid pressure regulator means to adjust the pressure as required for the specific engine operating conditions. The timing fluid is delivered to the injectors by the present system at a pressure sufficient to sustain a hydraulic link within the injector of the length necessary to maintain high SAC pressures during injection. Several embodiments of a fuel supply system which achieves these objectives are disclosed. A mounting integral with the cylinder head for an electronically controlled injector fuel supply system is also provided.
摘要翻译：提供一种电子控制燃料供应系统，用于使用多个燃料喷射器，其在低速和高速运行条件下使SAC压力最大化，并且能够承受超过30,000psi的SAC压力。本发明的燃料供给系统包括齿轮泵，其将加压调节燃料供给到加油通道和定时通道，并且从那里到多个喷射器。燃料压力调节装置和定时流体压力调节装置分别设置在加油和定时通道中。电子控制单元从多个传感器接收与发动机操作条件有关的信息，并且启动燃料压力调节装置和定时流体压力调节装置，以根据特定的发动机运行条件来调节压力。正时流体由本系统以足以维持注射器内的液压连杆在注射期间维持高SAC压力所需的长度所需的压力被输送到喷射器。公开了实现这些目的的燃料供应系统的几个实施例。还提供了与用于电子控制的喷射器燃料供应系统的气缸盖一体的安装。

6. 发明公开

EP0889233A2 Compact high performance fuel system with accumulator 失效
标题翻译： Kompakte Kraftstoffanlage hoher Leistung mit Speicher
公开(公告)号：EP0889233A2
公开(公告)日：1999-01-07
申请号：EP98118101.9
申请日：1994-05-06
申请人： CUMMINS ENGINE COMPANY, INC.
发明人： Cavangh, Mark S. , Swank, Bryan W. , Pataki, Arpad M. , Doszpoly, Bela , Lane, John D. , Shields, Kent V. , Kraus, Richard D. , Delano, Beale W. , Perr, Julius P. , Sah, Frank Jy-Jen , Guluk, Alexander G. , Peters, Lester L.
IPC分类号： F02M63/02 , F02M55/02 , F02M41/16 , F02M41/04 , F02M41/06 , F02M45/02 , F02M59/36 , F02M59/46
CPC分类号： F02D41/3845 , F02D41/20 , F02D41/3827 , F02D41/408 , F02D2041/2017 , F02D2041/2055 , F02D2041/2058 , F02D2041/224 , F02D2041/225 , F02D2250/02 , F02D2250/31 , F02M41/04 , F02M41/06 , F02M41/16 , F02M45/04 , F02M45/12 , F02M51/00 , F02M55/02 , F02M55/025 , F02M59/30 , F02M59/34 , F02M59/36 , F02M59/44 , F02M59/46 , F02M59/466 , F02M63/00 , F02M63/0003 , F02M63/0007 , F02M63/0008 , F02M63/0225 , F02M2200/04 , F02M2200/40 , F04B9/06 , F04B2205/05 , F04B2205/15
摘要： A unitized fuel supply assembly is diclosed including an in-line reciprocating cam driven pump (14) for supplying fuel to an accumulator (12) from which fuel is directed to a plurality of engine cylinders by means of a distributor (16) mounted on the unitized assembly. Dual pump control valves (20) provide fail safe electronic control over the effective pump displacement. One or more injection control valves mounted on the distributor are provided to control injection timing and quantity. The accumulator (12) contains a labyrint of interconnected chambers which are shaped and positioned to produce a minimum overall package size while providing for easy manufacture.
摘要翻译：联合燃料供应组件被包围，包括用于向蓄能器（12）供应燃料的在线往复式凸轮驱动泵（14），燃料通过安装在所述蓄能器（12）上的分配器（16）引导到多个发动机气缸组合式组装双泵控制阀（20）为有效泵排量提供故障安全电子控制。设置安装在分配器上的一个或多个喷射控制阀以控制喷射正时和数量。蓄能器（12）包含互连室的迷宫，其形状和定位以产生最小的整体包装尺寸，同时提供容易的制造。

7. 发明授权

EP0413237B1 Cam follower assembly with pinless roller 失效
标题翻译：凸轮随动组件与螺栓松动的作用。
公开(公告)号：EP0413237B1
公开(公告)日：1995-07-12
申请号：EP90115145.6
申请日：1990-08-07
申请人： CUMMINS ENGINE COMPANY, INC.
发明人： Perr, Julius P.
IPC分类号： F01L1/14 , F01L1/18 , F16H53/06
CPC分类号： F01L1/18 , F01L2105/02 , F02M59/102 , F16H53/06 , Y10T74/2107

8. 发明授权

EP0360278B1 Electronic controlled fuel supply system for high pressure injector 失效
标题翻译：系统，用于控制在高压喷射器的燃料供给。
公开(公告)号：EP0360278B1
公开(公告)日：1993-10-20
申请号：EP89117549.9
申请日：1989-09-22
申请人： CUMMINS ENGINE COMPANY, INC.
发明人： Peters, Lester L. , Perr, Julius P. , Smith, Edward D.
IPC分类号： F02D41/40 , F02D41/30
CPC分类号： F02D7/007 , F02B1/04 , F02B3/06 , F02D7/002 , F02D41/40 , F02D2200/0602 , F02D2250/31 , F02M57/021 , F02M57/024 , Y02T10/44

9. 发明公开

EP0416460A3 High pressure unit fuel injector with timing chamber pressure control 失效
标题翻译：高压单元燃油喷射器，带时钟室压力控制
公开(公告)号：EP0416460A3
公开(公告)日：1991-09-25
申请号：EP90116619.9
申请日：1990-08-30
申请人： CUMMINS ENGINE COMPANY, INC.
发明人： Warlick, Timothy A. , Campbell, Jeffrey L. , Peters, Lester L. , Lucas, Michael E. , Perr, Julius P. , Wan, Kuang-Wen Thomas
IPC分类号： F02M57/02
CPC分类号： F02M57/021 , F02M57/023 , F02M57/024 , F02M59/30
摘要： A fuel injector (10) includes an injector housing (16) having a plunger assembly (20) disposed within a central axial bore (18) and including a lower plunger (22), an intermediate plunger (24), and an upper plunger (26). The lower plunger (22) reciprocates within the central bore (18) to meter a variable quantity of fuel during downward portions of the reciprocating motion. A timing spring (56) is wound around the upper portion of the lower plunger (22) to bias the lower plunger (22) upwardly. A timing chamber formed between the upper and the intermediate plungers (26,24) receives timing fluid to create a hydraulic link between the plungers. Timing fluid exits the timing chamber through a central passage (38), which may have a reduced area regulating orifice, formed through the intermediate plunger (24), which is ordinarily closed by a valve mechanism (40). The valve mechanism (40) is acted upon in part by the timing spring (56). To improve the pressure regulation using a higher spring load and to accommodate a larger area drainage passage (38), a valve spring (60) biases closed the passage (38). The force provided by the valve spring (60) is predetermined to open the valve mechanism (40) and drain timing fluid when the timing fluid pressure exceeds the maximum pressure during injection. After injection is completed, timing fluid exits from the timing chamber either through the central passage (38) or through a spillport which is closable by the nonbeveled lower portion of the upper plunger (26).

10. 发明公开

EP0723076A2 A closed nozzle fuel injector 失效
标题翻译：封闭的燃料
公开(公告)号：EP0723076A2
公开(公告)日：1996-07-24
申请号：EP96300271.2
申请日：1996-01-15
申请人： CUMMINS ENGINE COMPANY, INC.
发明人： Yen, Benjamin M. , Peters, Lester L. , Perr, Julius P. , Ghuman, Amarjit S. , Ashwill, Dennis M.
IPC分类号： F02M45/00 , F02M61/10 , F02M61/20
CPC分类号： F02M45/12 , F02M45/10 , F02M61/042 , F02M61/10 , F02M2200/40
摘要： An injection rate shaping nozzle assembly (52) for a fuel injector is provided which includes a closed nozzle valve element (66) and a rate shaping control device (82) including an injection spill circuit for spilling a portion of the fuel to be injected to produce a predetermined time varying change in the flow rate of fuel injected into a combustion chamber. The spill circuit includes a spill passage (88) integrally formed in the nozzle valve element (66). The rate shaping control means (82) may include a spill valve (86) for controlling the spill flow through the spill circuit to create a low injection flow rate followed by a high injection flow rate. The spill passage (88) may communicate with the injector nozzle cavity (58) between injection events or alternatively may be blocked to prevent spill flow between injection events. The rate shaping control device (82) may include a spill accelerating device in the form of a spill chamber formed in the nozzle valve element (66) for creating a rapid increase in the spill flow rate.

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