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11. 发明公开

EP1429020A1 Variable discharge pump 有权
标题翻译： SteuerbareHochdruckförderpumpe
公开(公告)号：EP1429020A1
公开(公告)日：2004-06-16
申请号：EP03024168.1
申请日：2003-10-20
申请人： Caterpillar Inc.
发明人： Sommers, Mark F., Caterpillar Inc. , Gibson, Dennis H. Caterpillar Inc.
IPC分类号： F02M63/02 , F02M59/08
CPC分类号： F02M59/466 , F02M59/08 , F02M59/366 , F02M59/46 , F02M63/0225 , F04B49/24
摘要： The present invention relates generally to variable discharge pumps, and specifically pumps used in fuel injection systems. Typically, such pumps include a dedicated spill control valve for each pumping plunger, that also doubles as an avenue for refilling the pumping chambers. This double duty results in compromise in the design of the spill control valve to operate effectively in both spill and fill modes. The present invention addresses these issues by utilizing a shuttle valve member (80,180) to allow the spill function and the fill function to be addressed in separate passageways while also allowing a pair of plungers (45,55,155,145) to share a common spill control valve (38,138). The present invention find particular application in pumps used to supply high pressure fluid to common rails for fuel injection systems.
摘要翻译：本发明一般涉及可变排放泵，特别是用于燃料喷射系统的泵。通常，这种泵包括用于每个泵送柱塞的专用溢流控制阀，其也可以作为用于再填充泵送室的通道。这种双重作用导致泄漏控制阀的设计妥协，以便在溢出和填充模式下有效运行。本发明通过利用梭阀构件（80,180）来解决这些问题，以允许在单独的通路中解决溢出功能和填充功能，同时还允许一对柱塞（45,55,155,145）共享公共溢流控制阀（ 38,138）。本发明特别适用于用于将高压流体供应给用于燃料喷射系统的共轨的泵。

12. 发明公开

EP1357285A2 Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine 审中-公开
标题翻译： Kraftstoffeinspritzeinrichtungfüreine Brennkraftmaschine
公开(公告)号：EP1357285A2
公开(公告)日：2003-10-29
申请号：EP03004641.1
申请日：2003-03-03
申请人： ROBERT BOSCH GMBH
发明人： Boos, Burkhard , Kieferle, Stefan , Distel, Mattias , Koehler, Achim , Ambrock, Sascha
IPC分类号： F02M63/02 , F02M59/36 , F02M55/00 , F02M59/06
CPC分类号： F02D41/3845 , F02D2041/2027 , F02M59/06 , F02M59/08 , F02M59/102 , F02M59/366 , F02M59/466 , F02M63/0225
摘要： Die Kraftstoffeinspritzeinrichtung weist eine Hochdruckpumpe (14) auf, durch die Kraftstoff in einen Speicher (16) gefördert wird, mit dem an Zylindern der Brennkraftmaschine angeordnete Injektoren (20) verbunden sind. Durch eine Förderpumpe (12) wird Kraftstoff aus einem Kraftstoffvorratsbehälter (10) zur Saugseite der Hochdruckpumpe (14) gefördert. Eine durch eine Steuereinrichtung (23) angesteuerte Kraftstoffzumeßeinrichtung (44) ist zwischen der Druckseite der Förderpumpe (12) und der Saugseite der Hochdruckpumpe (14) angeordnet und durch diese wird die der Saugseite der Hochdruckpumpe (14) zugeführte Kraftstoffmenge eingestellt. Die Kraftstoffzumeßeinrichtung ist durch ein Taktventil (44) gebildet, das durch die Steuereinrichtung (23) pulsweitenmoduliert geöffnet und geschlossen wird, wobei die der Saugseite der Hochdruckpumpe (14) zugeführte Kraftstoffmenge proportional zur Öffnungsdauer des Taktventils (44) ist.
摘要翻译：该装置具有高压泵，连接到喷射器的存储装置，输送泵和在脉冲宽度控制下打开和关闭的时钟阀燃料计量装置。供给到高压泵吸入侧的燃料量与阀的打开持续时间成正比，并且脉冲宽度调制频率优选地与高压泵转速或转速的倍数同步地调节。该装置具有高压泵（14），其将高压燃料供给连接到喷射器（20）的存储装置（16），从罐（10）将燃料供给高压泵的输送泵（12）燃料计量装置由控制器控制以将燃料供给速率设定到高压泵的吸入侧。计量装置是在脉冲宽度控制下打开和关闭的时钟阀。供给到高压泵的吸入侧的燃料量与阀的打开持续时间成比例，并且脉冲宽度调制频率优选地与高压泵转速或转速的倍数同步地调节。

13. 发明公开

EP1319828A2 Electrically driven hydraulic pump actuator 有权
标题翻译：电动水泵
公开(公告)号：EP1319828A2
公开(公告)日：2003-06-18
申请号：EP02023867.1
申请日：2002-10-24
申请人： Caterpillar Inc.
发明人： Hu, Haoran, c/o Caterpillar Inc. , Nelson, Bryan E., c/o Caterpillar Inc.
IPC分类号： F02M59/08 , F02M59/24 , F02M63/02 , F04B49/08
CPC分类号： F02M59/08 , F02M59/243 , F02M59/246 , F02M63/0225
摘要： A hydraulically-actuated system (10) includes a fix displacement variable delivery pump (18) with a plurality of parallel disposed piston (62) that reciprocate in a pump housing (76) the defines a high pressure portion (64) and a low pressure area (134). A control device (44) is attached to the pump housing (76) and moveable between a first position in which the pistons (62) displace fluid into the high pressure portion (64) and a second position in which pistons (62) spill fluid back to the low pressure area (134). The control device (44) includes an electrically driven linear motion device (66), a linkage (82) and a plurality of sleeves (54), one being disposed on each piston (62). Linear movement of the control device (44) in turn causes linear movement of the sleeves (54). The position of the sleeves (54) in turn determines the amount of output of the pump (1).
摘要翻译：液压致动系统（10）包括具有多个平行设置的活塞（62）的固定位移可变输送泵（18），所述活塞在泵壳体（76）中往复运动，所述多个平行设置的活塞（62）限定高压部分（64）和低压区域（134）。控制装置（44）附接到泵壳体（76）并且可在其中活塞（62）将流体置于高压部分（64）中的第一位置和第二位置之间移动，在第二位置，活塞（62）将流体回到低压区（134）。控制装置（44）包括电驱动的直线运动装置（66），连杆机构（82）和多个套筒（54），一个设置在每个活塞（62）上。控制装置（44）的线性移动又导致套筒（54）的线性移动。套筒（54）的位置依次确定泵（1）的输出量。

14. 发明公开

EP1270929A1 FUEL PUMP AND FUEL FEEDING DEVICE USING THE FUEL PUMP 审中-公开
标题翻译： BRENNSTOFFZUFUHR MIT EINER SOLCHEN PUMPE BRENNSTOFFPUMPE
公开(公告)号：EP1270929A1
公开(公告)日：2003-01-02
申请号：EP01902791.1
申请日：2001-02-07
申请人： Bosch Automotive Systems Corporation
发明人： RYUZAKI, Koutaro, c/o BOSCH AUTOMOTIVE SYST. CORP.
IPC分类号： F02M59/10 , F02M47/00
CPC分类号： F02M59/08 , F02M59/102 , F02M63/0225
摘要： A fuel injection pump, comprising a plurality of plungers and a cam shaft having a plurality of drive cams (31, 32) installed in correspondence with the plungers, wherein the cam shaft is rotated by a power from the outside so as to reciprocate the plurality of plungers by the corresponding drive cams, and fuel is pressurized and force-fed in the forward moving process of each plunger, and a fuel feeding device using the fuel pump; wherein all or a part of the drive cams (31, 32) are installed with the phase thereof shifted, and the cam lobes (31a, 32a) of the drive cams are formed asymmetrical so that the amount of displacement of the plungers relative to a unit cam rotating angle is reduced ion the forward moving process more than in the backward moving process of the plunger, whereby a pressure variation in a common rail is reduced, the pressure resistance of an entire system is lowered, and a drive torque is reduced so as to reduce the load and noise of a drive system.
摘要翻译：一种燃料喷射泵，包括多个柱塞和具有与所述柱塞对应地安装的多个驱动凸轮（31,32）的凸轮轴，其中所述凸轮轴通过来自外部的动力旋转，以使所述多个通过相应的驱动凸轮的柱塞，并且在每个柱塞的向前移动过程中对燃料进行加压和强制供给，以及使用该燃料泵的燃料供给装置; 其中驱动凸轮（31,32）的全部或一部分安装成其相位偏移，并且驱动凸轮的凸轮凸角（31a，32a）形成为不对称，使得柱塞相对于单元凸轮旋转角度比前进运动过程比柱塞的向后移动过程减少，从而共轨中的压力变化减小，整个系统的耐压力降低，驱动转矩降低以减少驱动系统的负载和噪音。

15. 发明公开

EP1222384A1 HOCHDRUCKPUMPE 审中-公开
标题翻译：高压泵
公开(公告)号：EP1222384A1
公开(公告)日：2002-07-17
申请号：EP00975774.1
申请日：2000-09-16
申请人： ROBERT BOSCH GMBH
发明人： BOECKING, Friedrich
IPC分类号： F02M59/10 , F02M59/46 , F02M63/02 , F04B9/117
CPC分类号： F02M59/08 , F02M59/105 , F02M59/468 , F02M63/0225 , F04B9/1176
摘要： A high pressure pump (1) for supplying fuel to an internal combustion engine injection system comprises a drive unit (4) for at least one piston (5, 6) which is axially displaceable in a cylinder (7, 8) and whose crown (10, 11) opposing the drive unit (4) defines the pumping volume (12, 13), itself connected to a fuel filled low pressure volume (14) and a high pressure line (15, 16). The drive unit (4) comprises at least one valve gear (37, 38), itself comprising a valve element (43, 44) which is axially displaceable in a bore (39, 40) within the valve body (41, 42). Said element (43, 44) cooperates with a seat (45, 46) in the valve body (41, 42) to open and close a pressurized medium inlet (47, 48) for hydraulically operating the pistons (5, 6). The valve element (43, 44) is controlled by an actuator (50) on a piezo-electric unit (51).

16. 发明公开

EP1036923A3 Method of determining abnormality in high-pressure fuel injection device 有权
标题翻译：一种用于在高压燃料喷射器的异常检测方法
公开(公告)号：EP1036923A3
公开(公告)日：2001-08-08
申请号：EP00104931.1
申请日：2000-03-08
申请人： Toyota Jidosha Kabushiki Kaisha
发明人： Sugiyama, Tatsumasa , Katou, Yuuichirou
IPC分类号： F02B77/08
CPC分类号： F02D41/3809 , F02D41/221 , F02D2041/224 , F02D2200/0604 , F02M59/08 , F02M59/102 , F02M63/0225 , F02M63/027
摘要： The present invention provides a method of determining abnormality, which is capable of specifying a fuel force-feed system subject to an abnormality without causing fluctuations of a fuel pressure in an accumulator line. A fuel pump (30) is provided with a first supply pump (50a) and a second supply pump (50b), and these supply pumps (50a, 50b) alternately force-feed fuel to a common rail (20). Respective fuel injection valves (12) carry out fuel injection based on a fuel pressure (rail pressure) in the common rail (20). An ECU (60) detects a rail pressure rise amount during a fuel force-feed period and calculates an estimated value of rail pressure rise amount based on a force-feed command value for the fuel pump (30). The ECU (60) determines which one of the supply pumps (50a, 50b) is in the process of force-feeding fuel in a certain fuel force-feed period, and determines individually the occurrence of an abnormality in the respective supply pumps (50a, 50b) based on the detected value and the estimated value of rail pressure rise amount.

17. 发明公开

EP0901575A1 POMPE A HAUTE PRESSION POUR TOUS LIQUIDES 失效
标题翻译：高压泵用于各种液体
公开(公告)号：EP0901575A1
公开(公告)日：1999-03-17
申请号：EP97926060.0
申请日：1997-05-30
申请人： HYDRO RENE LEDUC
发明人： POREL, Louis-Claude
IPC分类号： F02M59 , F04B1 , F04B43 , F04B53
CPC分类号： F02M59/246 , F02M59/04 , F02M59/08 , F02M59/105 , F02M59/14 , F02M59/243 , F04B1/14 , F04B43/067 , F04B53/142
摘要： The invention features a device that enables the pumping of any kind of liquid while giving it a very high delivery pressure. The units (24, 44) that cause pumped liquid suction and then its delivery are driven exclusively by hydraulic means excluding mechanical means. So that there is no material contact between the said driving units and the pumped product and that the said product cannot damage the said mechanical driving units, the chamber receiving the hydraulic fluid is, at the end of each compression cycle, placed again in direct communication with the hydraulic fluid reservoir.

18. 发明公开

EP0775258A4 FUEL INJECTION RATE SHAPING CONTROL SYSTEM 失效
标题翻译：燃料喷射控制系统
公开(公告)号：EP0775258A4
公开(公告)日：1998-09-16
申请号：EP96921550
申请日：1996-06-11
申请人： CUMMINS ENGINE CO INC
发明人： 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： F02M37/00 , F02M41/16 , F02M45/12 , F02M55/02 , F02M57/02 , F02M59/08 , F02M59/46 , F02M63/00 , 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.

19. 发明公开

EP0715070A1 Injection arrangement for injecting pressure medium into a cylinder of an internal combustion engine 失效
标题翻译： Einspritzanlage zur Druckmitteleinspritzung in den Zylinder einer Brennkraftmaschine
公开(公告)号：EP0715070A1
公开(公告)日：1996-06-05
申请号：EP95308442.3
申请日：1995-11-24
申请人： Wartsila Diesel International Ltd. OY
发明人： Liljenfeldt,Gösta , Jay, Dave , Nynäs, Hakan
IPC分类号： F02M59/08
CPC分类号： F02M59/08 , F02B3/06
摘要： An injection arrangement for injecting a pressure medium, especially fuel, into a cylinder of an internal combustion engine, specifically a large diesel engine with several cylinders, comprising at least two injection pump elements (1a,1b) arranged in a common pump body (1) and arranged to inject the pressure medium into the same cylinder during at least one continuous injection period, each pump element (1a,1b) including a pump cylinder (7a,7b), a piston member (8a,8b) reciprocatingly movable therein and a pressure chamber (13a,13b,13c). The piston members (8a,8b) receive their control from a cam race (5a,5b) of at least one cam arranged on a camshaft (4) or the like of the engine and the pressure chambers (13a,13b,13c) of the pump cylinders (7a,7b) are continuously in connection with each other. In order to determine the entire volume of the injection during the injection period as well as the speed and timing of the injection affecting it, the piston members (8a,8b) are provided with control edges for the timing of the injection so that the control edge (10b) in one of the piston members (8b) determines the starting moment of the injection and the control edge (10a) in the other piston member (8a) determines the termination of the injection during movement of the piston members (8a,8b) towards the direction of the pressure chambers (13a,13b,13c).
摘要翻译：一种用于将压力介质特别是燃料喷射到内燃机的气缸中的喷射装置，特别是具有多个气缸的大型柴油发动机，包括布置在公共泵体（1）中的至少两个喷射泵元件（1a，1b）），并且布置成在至少一个连续喷射期间内将压力介质喷射到相同的缸中，每个泵元件（1a，1b）包括泵缸（7a，7b），可往复运动的活塞件（8a，8b）和压力室（13a，13b，13c）。活塞构件（8a，8b）从布置在发动机的凸轮轴（4）或类似物上的至少一个凸轮的凸轮滚道（5a，5b）接收它们的控制，并且压力室（13a，13b，13c）泵缸（7a，7b）彼此连续连续。为了确定注射期间的注射总体积以及影响其的注射的速度和时间，活塞部件（8a，8b）设置有用于注射定时的控制边缘，使得控制一个活塞部件（8b）中的边缘（10b）确定了喷射的起始力矩，另一个活塞部件（8a）中的控制边缘（10a）确定了在活塞部件（8a， 8b）朝向压力室（13a，13b，13c）的方向。

20. 发明授权

EP0461221B1 KRAFTSTOFFEINSPRIZTEINRICHTUNG FÜR EINSPRITZBRENNKRAFTMASCHINEN 失效转让
标题翻译： KRAFTSTOFFEINSPRIZTEINRICHTUNGFÜREINSPRITZBRENNKRAFTMASCHINEN
公开(公告)号：EP0461221B1
公开(公告)日：1994-03-02
申请号：EP91900714.6
申请日：1990-12-22
申请人： ROBERT BOSCH GMBH
发明人： GUGGENBICHLER, Franz , HLOUSEK, Jaroslaw
IPC分类号： F02M45/06
CPC分类号： F02M45/06 , F02M59/08
摘要： In a fuel injection device for injection-type internal combustionengines, with a main injection piston (4) and pre-injection piston (1) which is coaxial with, separate from, and of smaller diameter than the latter, the lifting movement of the pre-injection piston (1) is imparted by the main injection piston (4), which drives the pre-injection piston (1) non-positively against the force of at least one spring (5) that holds it against the main injection piston (4). During the main injection, the working space (13) of the pre-injection piston (1) communicates with the working space (8) of the main injection piston (4), so that after the end of pre-injection and an injection pause, the pre-injection piston (1) delivers part of the main quantity of injected fuel and the fuel pressure generated in the working space (13) of the pre-injection piston (1) boosts the action of the spring (5).
摘要翻译：在用于喷射式内燃机的燃料喷射装置中，具有主喷射活塞（4）和预喷射活塞（1），所述主喷射活塞（4）与预喷射活塞（1）同轴，分开并且具有比后者更小的直径，（1）由主喷射活塞（4）施加，该主喷射活塞（4）抵抗至少一个将弹簧保持在主喷射活塞（1）上的弹簧（5）的力不可靠地驱动预喷射活塞 4）。在主喷射期间，预喷射活塞（1）的工作空间（13）与主喷射活塞（4）的工作空间（8）连通，使得在预喷射结束和喷射暂停，预喷射活塞（1）输送主喷射燃料量的一部分，并且在预喷射活塞（1）的工作空间（13）中产生的燃料压力增大了弹簧（5）的作用。

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