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1. 发明申请

WO1996041945A1 FUEL INJECTION RATE SHAPING CONTROL SYSTEM 审中-公开
标题翻译：燃油喷射速率成形控制系统
公开(公告)号：WO1996041945A1
公开(公告)日：1996-12-27
申请号：PCT/US1996010137
申请日：1996-06-11
申请人： CUMMINS ENGINE COMPANY, INC.
发明人： CUMMINS ENGINE COMPANY, INC. , LIU, Chung, Y. , YEN, Benjamin, M. , PETERS, Lester, L. , PERR, Julius, P. , DURRETT, Russ, P. , CASE, Donald, N. , ASHWILL, Dennis , SORG, Chris , LANE, John , CAVANAGH, Mark
IPC分类号： F02M37/04
CPC分类号： F02M63/0007 , F02M41/16 , F02M45/12 , F02M55/02 , F02M57/025 , F02M59/08 , F02M63/0003 , F02M63/0015 , F02M2200/30
摘要： A fuel injection rate shaping control system is provided which effectively controls the flow rate of fuel injected into the combustion chamber of an engine to improve combustion and reduce emissions by controlling the rate of pressure increase during injection. The injection rate shaping control system includes a rate shaping control device (10) including a rate shaping transfer passage (22) having a predetermined length and diameter specifically designed to create a desired injection pressure rate shape. In other embodiments of the present invention, two or more rate shaping transfer passages (72, 74) capable of producing distinct rate shapes are packaged in various fuel injection systems to selectively provide various rate shapes depending on operating conditions. Switching valves, i.e. solenoid operated three-way valves (76, 84, 86), may be used to direct the fuel or timing fluid flow to any one of the rate shaping transfer passages. Also, a dampening means in the form of a reverse flow restrictor valve (26) is positioned in the rate shaping transfer passage to dampen reflected pressure waves thereby minimizing the adverse effects thereof.
摘要翻译：提供一种燃料喷射率成形控制系统，其有效地控制喷射到发动机的燃烧室中的燃料的流量，以通过控制喷射期间的压力增加率来改善燃烧并减少排放。喷射率成形控制系统包括速率成形控制装置（10），其包括具有预定长度和直径的速率整形传送通道（22），其特别设计成产生所需的喷射压力比形状。在本发明的其他实施例中，能够产生不同速率形状的两个或更多个速率成形传送通道（72,74）被包装在各种燃料喷射系统中，以根据操作条件选择性地提供各种速率形状。切换阀，即电磁操作的三通阀（76,84,86）可以用于将燃料或正时流体流引导到任何一个速率整形传递通道。而且，反向限流阀（26）形式的阻尼装置位于速率整形传递通道中，以阻尼反射的压力波，从而使其不利影响最小化。

2. 发明申请

WO1994010441A1 CONVERTIBLE FUEL INJECTOR 审中-公开
标题翻译：可燃性燃油喷射器
公开(公告)号：WO1994010441A1
公开(公告)日：1994-05-11
申请号：PCT/US1993008599
申请日：1993-09-16
申请人： CUMMINS ENGINE COMPANY, INC.
发明人： CUMMINS ENGINE COMPANY, INC. , SWANK, Bryan, W. , TIKK, Laszlo , TARR, Yul, J. , PETERS, Lester, L. , SZARVAS, Thomas, L.
IPC分类号： F02M61/20
CPC分类号： F02M57/024 , F02M57/021 , F02M57/023 , F02M59/30 , F02M61/168 , F02M63/005
摘要： A fuel injector (1, 2) which uses interchangeable subassemblies (10, 11) to allow the injector to be converted from open to closed nozzle options without affecting engine installation, and without altering the timing or metering principles. The fuel injector (1, 2) is comprised of two subassemblies, a first subassembly of which is a timing or control subassembly (13) that is used with both the open and closed nozzle options, and a second subassembly which is formed in two versions, an open nozzle version (11) and a closed nozzle version (10).
摘要翻译：一种燃料喷射器（1,2），其使用可互换的子组件（10,11），以允许喷射器从开放式或闭式喷嘴选项转换而不影响发动机安装，并且不改变定时或计量原理。燃料喷射器（1,2）由两个子组件组成，其第一子组件是与打开和关闭喷嘴选项一起使用的定时或控制子组件（13），以及形成为两个版本的第二子组件，打开喷嘴版本（11）和封闭喷嘴版本（10）。

3. 发明申请

WO1997006364A1 OPEN NOZZLE FUEL INJECTOR HAVING DRIVE TRAIN WEAR COMPENSATION 审中-公开
标题翻译：具有驱动火花磨损补偿的开启喷嘴燃油喷射器
公开(公告)号：WO1997006364A1
公开(公告)日：1997-02-20
申请号：PCT/US1996012543
申请日：1996-08-08
申请人： CUMMINS ENGINE COMPANY, INC.
发明人： CUMMINS ENGINE COMPANY, INC. , PETERS, Lester, L. , PERR, Julius, P. , TARR, Yul, J.
IPC分类号： F02M37/04
CPC分类号： F02M57/024 , F02M57/021 , F02M59/102
摘要： A cam operated open nozzle fuel injector (12) is provided comprising a reciprocating plunger assembly including an outer plunger (32), an inner plunger (36) and a variable volume timing chamber (52) located between the plungers. A hold down force generating means includes a cam having a hold down cam or ramp portion (106) for maintaining the inner plunger in an innermost position against the inner end of the injector body with a sufficient hold down force during each hold down period throughout injector operation independently of injector train wear. The hold down cam portion operates to move the outer plunger inwardly towards the inner plunger throughout a substantial portion of the hold down period. The hold down cam portion functions to compensate for fuel drainage from the timing chambers so as to maintain a predetermined pressure in the timing chamber corresponding to a desired hold down force.
摘要翻译：提供一种凸轮操作的开口喷嘴燃料喷射器（12），其包括往复式柱塞组件，该往复式柱塞组件包括位于柱塞之间的外柱塞（32），内柱塞（36）和可变容积定时室（52）。压紧力产生装置包括具有压紧凸轮或斜坡部分（106）的凸轮，用于在内部柱塞的最内部位置处保持内柱塞抵靠喷射器主体的内端，并且在每个压紧周期期间具有足够的压紧力操作独立于喷油器列车磨损。压紧凸轮部分操作以在整个保持期的大部分期间将外柱塞向内移动到内柱塞。压紧凸轮部分用于补偿来自定时室的燃料排放，以便在对应于期望的压下力的情况下保持定时室中的预定压力。

4. 发明申请

WO1996018033A1 FUEL METERING CHECK VALVE ARRANGEMENT FOR A TIME-PRESSURE CONTROLLED UNIT FUEL INJECTOR 审中-公开
标题翻译：用于时间压力控制单元燃油喷射器的燃油计量阀安装
公开(公告)号：WO1996018033A1
公开(公告)日：1996-06-13
申请号：PCT/US1995015873
申请日：1995-12-06
申请人： CUMMINS ENGINE COMPANY, INC. , TARR, Yul, J.
发明人： CUMMINS ENGINE COMPANY, INC. , PETERS, Lester, L. , YEN, Bai, Mao , TIKK, Laszlo, D. , JOHNSON, Ivar, L., Jr. , BURNS, Daniel, G. , GULL, Mustahsen , WILSON, Harry, L. , MUNTEAN, George, L.
IPC分类号： F02M57/02
CPC分类号： F02M63/0054 , F02M57/02 , F02M57/021 , F02M57/024 , F02M59/205 , F02M59/462 , F02M59/464 , Y10T137/7927
摘要： Check valves (500) are incorporated into a fuel injector so as to form a controlling orifice in the system between the solenoid vales which direct fuel to the respective injection and timing chambers of the fuel injector and the chambers themselves. The precision fuel metering capability of the valve (500) is determined by an annular clearance created between the plunger (512) of the valve and the valve body (510) when the valve is in its maximum stroke. For achieving a bi-stable operation of the valve, the ratio of the plunger valve seat (510d) area to the maximum plunger valve (512b) area and the spring (514) are key parameters. The check valves (500) are formed as cartridge type check valves taht can be calibrated outside of the injector prior to the installation thereof.
摘要翻译：止回阀（500）被并入燃料喷射器中，以便在电磁阀之间的系统中形成控制孔，该燃料喷嘴将燃料引导到燃料喷射器的各个喷射和定时室以及腔室本身。当阀处于最大冲程时，阀（500）的精密燃料计量能力由在阀的柱塞（512）和阀体（510）之间产生的环形间隙确定。为了实现阀的双稳态操作，柱塞阀座（510d）面积与最大柱塞阀（512b）面积和弹簧（514）的比是关键参数。止回阀（500）形成为盒式止回阀，其在安装之前可以在注射器外部校准。

5. 发明申请

WO1994027040A1 DISTRIBUTOR FOR A HIGH PRESSURE FUEL SYSTEM 审中-公开
标题翻译：高压燃油系统分销商
公开(公告)号：WO1994027040A1
公开(公告)日：1994-11-24
申请号：PCT/US1994005106
申请日：1994-05-06
申请人： CUMMINS ENGINE COMPANY, INC.
发明人： CUMMINS ENGINE COMPANY, INC. , PETERS, Lester, L. , YEN, Bai-Mao , PERR, Julius, P.
IPC分类号： F02M41/00
CPC分类号： F02M63/00 , F02D41/20 , F02D41/3827 , F02D41/3836 , F02D41/3845 , F02D41/408 , F02D2041/2017 , F02D2041/2055 , F02D2041/2058 , F02D2041/224 , F02D2041/225 , F02D2250/02 , F02D2250/31 , F02M41/04 , F02M41/06 , F02M41/14 , F02M41/16 , F02M45/04 , F02M45/12 , F02M51/00 , F02M55/02 , F02M55/025 , F02M59/30 , F02M59/34 , F02M59/36 , F02M59/44 , F02M59/46 , F02M59/466 , F02M63/0003 , F02M63/0007 , F02M63/0008 , F02M63/0225 , F02M2200/04 , F02M2200/24 , F02M2200/40 , F04B2205/05 , F04B2205/15
摘要： A fuel distributor (10) is provided which is capable of distributing fuel through plural fuel injection lines to the corresponding cylinders of a multi-cylinder internal combustion engine and which includes a distributor housing (12) including a supply inlet passage (32), a plurality of fuel injection outlet passages (34) and a plurality of distributor valves (14) for providing sequential periodic communication between the supply inlet passage (32) and the outlet passages (34). Each distributor valve (14), which may be cam-actuated or solenoid-actuated, is adapted to be placed in an open position allowing fuel flow or a closed position blocking flow through the respective fuel injection outlet passage (34). Each of the distributor valves (14) is adapted to receive a force from the high pressure fuel flowing from the supply inlet passage (32) which urges the distributor valve into the closed position thereby providing an effective seal and minimizing leakage.
摘要翻译：一种燃料分配器（10），其能够通过多个燃料喷射管线将燃料分配到多缸内燃机的相应气缸，并且包括分配器壳体（12），该分配器壳体包括供给入口通道（32），多个燃料喷射出口通道（34）和多个分配阀（14），用于在供应入口通道（32）和出口通道（34）之间提供顺序的周期性连通。可以被凸轮驱动或电磁致动的每个分配阀（14）适于放置在允许燃料流动或封闭位置阻止流过各个燃料喷射出口通道（34）的打开位置。每个分配器阀（14）适于接收来自从供应入口通道（32）流出的高压燃料的力，其将分配阀推动到关闭位置，从而提供有效的密封并使泄漏最小化。

6. 发明申请

WO1994027039A1 VARIABLE DISPLACEMENT HIGH PRESSURE PUMP FOR COMMON RAIL FUEL INJECTION SYSTEMS 审中-公开
标题翻译：用于普通铁路燃油喷射系统的可变位移高压泵
公开(公告)号：WO1994027039A1
公开(公告)日：1994-11-24
申请号：PCT/US1994005107
申请日：1994-05-06
申请人： CUMMINS ENGINE COMPANY, INC.
发明人： CUMMINS ENGINE COMPANY, INC. , YEN, Bai-Mao , PETERS, Lester, L. , PERR, Julius, P. , SWANK, Bryan, W.
IPC分类号： F02M07/00
CPC分类号： F04B9/06 , F02D2041/225 , 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 , F04B2205/05 , F04B2205/15
摘要： A variable displacement high pressure pump having a plurality of high pressure pumping units which receive fuel from a low pressure fuel pump. A rotary cam-driven roller tappet, for producing pumping displacement of the pumping plunger of a respective pumping element, is connected to the pumping plunger by a separated link in a manner permitting the pumping plunger to float relative to the roller tappet during at least a portion of each pumping cycle. As a result, the capacity of the pumping chamber can be limited to an extent that is less than the full stroke achievable by the pumping plunger being retracted to the maximum extent which is permitted by the driving cam. In this way, the quantity of fuel to be pressurized and injected into the common rail does not have to be determined by a cutting-off of a spilling flow of excess metered fuel during the compression stroke of the pumping plunger, so that a low pressure solenoid valve can be used, in the case of time-stroke and time-pressure metering, and no solenoid is required to control metering in the case of pressure-time metering.
摘要翻译：一种具有多个从低压燃料泵接收燃料的高压泵送单元的可变排量高压泵。用于产生相应泵送元件的泵送柱塞的泵送位移的旋转凸轮驱动辊挺杆通过分离的连杆以一种允许泵柱塞相对于辊挺杆浮动的方式连接到泵送柱塞，在至少一个每个泵送循环的一部分。结果，泵送室的容量可以被限制在小于由泵驱动柱塞缩回到由驱动凸轮允许的最大程度而可实现的全行程的程度。以这种方式，在泵送柱塞的压缩行程期间，加压和注入共轨的燃料的量不必通过切断多余计量燃料的溢出流来确定，从而使得低压在时间行程和时间压力计量的情况下，可以使用电磁阀，并且在压力测量的情况下不需要电磁阀来控制计量。

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