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公开(公告)号：EP0962648A1
公开(公告)日：1999-12-08
申请号：EP98110176.9
申请日：1998-06-04
CPC分类号： F02M59/107 , F02M45/00 , F02M51/04 , F02M59/20 , F02M59/205 , F02M59/22 , F02M69/12 , F04B13/00
摘要： Kraftstoffeinspritzvorrichtung für eine Brennkraftmaschine mit einer Hubkolbenpumpe zum Fördern von Kraftstoff mittels eines Förderkolbens (20) zu einer Einspritzdüse (9) der Brennkraftmaschine und einer Verzögerungseinrichtung (55,57), die derart ausgebildet ist, daß die Energieübertragung vom Förderkolben (20) auf den Kraftstoff verzögert erfolgt.
Mit der erfindungsgemäßen Kraftstoffeinspritzvorrichtung wird eine bessere Energieausbeute bei der Übertragung der kinetischen Energie des Förderkolbens (20) auf den Kraftstoff erzielt.摘要翻译： 燃料喷射装置具有往复式活塞泵，用于将输送活塞（20）的燃料输送到发动机中的喷嘴（9）。 延迟装置延迟能量从输送活塞传递到燃料。 注射装置以固态储能原理工作，具有加速体，由电磁铁驱动的电枢（12），其在几乎无电阻的加速阶段期间存储动能，以及中断加速阶段的装置，以产生 通过将储存的动能转移到燃料来进行压力步骤。
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公开(公告)号：EP0740067A2
公开(公告)日：1996-10-30
申请号：EP96106453.2
申请日：1996-04-24
申请人： ISUZU MOTORS LIMITED
CPC分类号： F02M45/00 , F02D41/3827 , F02D41/3836 , F02D2041/3881 , F02M45/12 , F02M47/027 , F02M47/043 , F02M59/366 , F02M63/0225
摘要： A fuel injection system includes a fuel injector (6) having a body, a needle valve (5) movably provided in the body and a fuel accumulator having two chambers (3, 4) for storing a fuel at high and low pressures. An injection chamber (19) is formed in the injector lower body and a control chamber (22) is formed in the injector upper body. An injection passage (17) connects the high pressure chamber (3) with the injection chamber (18) and a control passage (21) connects the low pressure chamber (4) with the control chamber (22). The needle valve (5) is lifted upon leaking of the fuel to the accumulator from the control chamber (22) and the fuel is injected from the injection chamber (19) upon lifting of the needle valve (5). The fuel is recycled to the fuel tank from the control chamber (22).
摘要翻译： 燃料喷射系统包括具有主体的燃料喷射器（6），可移动地设置在主体中的针阀（5）和具有用于在高压和低压下储存燃料的两个腔室（3,4）的燃料储存器。 注射室（19）形成在注射器下体中，并且控制室（22）形成在注射器上体中。 注射通道17连接高压室3和注射室18，控制通道21连接低压室4和控制室22。 当燃料从控制室（22）泄漏到蓄能器时，针阀（5）被提升，并且在提升针阀（5）时燃料从喷射室（19）喷射。 燃料从控制室（22）循环到燃料箱。
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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
发明人： Yen, Benjamin M. , Peters, Lester L. , Perr, Julius P. , Ghuman, Amarjit S. , Ashwill, Dennis M.
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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公开(公告)号：EP0691471A1
公开(公告)日：1996-01-10
申请号：EP95110676.4
申请日：1995-07-07
发明人： Ishida, Akio
CPC分类号： F02M57/025 , F02M45/02 , F02M47/027 , F02M59/102 , F02M63/0225 , F02M2200/40
摘要： A pressure storage (common rail) fuel injection system for an engine is provided, in which the fuel injection pressure rise response when quickly accelerating the engine is improved, engine output shortage is prevented, engine noise is reduced, and improvement is made with respect to soot generation and exhaust gas particulation. A booster (100) is provided to boost pressurized fuel fed out from a pressure storage (36) with a directional control valve (105) for piston operation. It is switched between low pressure fuel injection in which fuel from the pressure storage (36) is fed directly to a fuel injection valve (18) for injection, and high pressure fuel injection in which fuel having been boosted by the booster (100) is fed to the fuel injection valve (18) for injection by a directional control valve (105) for fuel injection control.
摘要翻译： 提供一种用于发动机的压力储存（共轨）燃料喷射系统，其中当发动机快速加速时的燃料喷射压力升高响应得到改善，防止发动机输出不足，发动机噪音降低，并且相对于 烟尘产生和废气颗粒物。 提供增压器（100）以通过用于活塞操作的方向控制阀（105）来增压从压力储存器（36）输出的加压燃料。 在压力储存（36）的燃料被直接供给到用于喷射的燃料喷射阀（18）的低压燃料喷射和高压燃料喷射之间切换，其中由助燃器（100）升压的燃料是 通过用于燃料喷射控制的方向控制阀（105）供给到燃料喷射阀（18）。
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公开(公告)号：EP0309501B1
公开(公告)日：1993-01-07
申请号：EP88902423.8
申请日：1988-03-26
申请人： ROBERT BOSCH GMBH
发明人： LAUFER, Helmut
CPC分类号： F02M59/366 , F02B3/06 , F02M41/125 , F02M45/12
摘要： A process and a device for quantity control of fuel injection by means of a fuel injection pump are proposed. With the process or with the device, the noise of a diesel engine during idling and partial loading can be reduced. The fuel injection pump includes at least one pump piston (3) which produces the pressure for the injection and delimits a pump working chamber (5), as well as a valve (26) which is opened by the element pressure in the pump working chamber (5) and closed by an electromagnetic device (34, 37). When the valve (26) is open, some of the fuel supply in the pump working chamber (5) is conveyed away through a discharge channel (29) without being injected. As this reduces the quantity of fuel injected in unit time, the overall delivery time must be prolonged. By prolonging the duration of injection, the noise of the combustion is reduced. During partial loading of the internal combustion machine, the valve (26) is closed by means of the electromagnetic device (34, 37) after a time-interval (DELTA) has elapsed since the valve was opened. The fuel which is conveyed thereafter is is injected. The magnitude of the time-interval (DELTAt) between opening and closing of the valve is determined in an electronic control unit (52) in function of load parameters (59, 62) of the internal combustion engine. During full-load operation of the internal combustion engine, the valve (26) remains closed.
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公开(公告)号：EP0509954A1
公开(公告)日：1992-10-21
申请号：EP92630045.0
申请日：1992-04-15
申请人： AIL CORPORATION
CPC分类号： F02M47/00 , F02M45/00 , F02M55/02 , F02M61/205
摘要： The high pressure fuel injection system utilizes a pressure regulating or control valve (28'') to provide a high residual pressure within the injector (5'') between injections. Maintaining a high residual fuel pressure boosts the injection pressure to provide improved fuel atomization, with consequent reductions in particulate emissions and increased fuel efficiency. The pressure regulating valve (28'') located in the high pressure line (6) connecting the fuel injection pump (90) with the injector (5''), may be controlled in accordance with engine operating conditions to provide a variable injection pressure boost commensurate with engine requirements.
摘要翻译： 高压燃料喷射系统利用压力调节或控制阀（28“）在喷射器之间的喷射器（5”）内提供高残留压力。 保持高残留燃油压力可提高注射压力，从而提供改进的燃料雾化，从而减少颗粒物排放并提高燃油效率。 位于连接燃料喷射泵（90）和喷射器（5“）的高压管线（6）中的压力调节阀（28”）可根据发动机的运行条件进行控制，以提供可变的喷射压力 提升与发动机要求相称。
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公开(公告)号：EP0323984B1
公开(公告)日：1991-07-10
申请号：EP88904921.9
申请日：1988-06-11
申请人： ROBERT BOSCH GMBH
发明人： ECKERT, Konrad
CPC分类号： F02M45/00 , F02B2275/14 , F02M59/366 , F02M2200/21 , F02M2200/24 , Y02T10/123
摘要： A fuel injection system for internal combustion engines has a high-pressure pump (1) which delivers a definite quantity of fuel per pump cycle, and an open/shut control device (11) arranged in a first discharge channel (13). The said control device closes the discharge channel for the start of injection and opens it for the end of injection. A second discharge channel (14) of the pump working space (5) contains a control quantity during the injection process. A constant throttle (16) and a pressure gauge (17) acting together with this throttle (16) as a flow meter are arranged in the second discharge channel (14). The measured control quantity (disturbing quantity) is compensated by the electronic control device (19) in order to maintain the effective injected quantity by suitable modification of the opening time by means of the open/shut control device (11).
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公开(公告)号：EP0177752B1
公开(公告)日：1988-12-07
申请号：EP85111136.9
申请日：1985-09-04
申请人： ROBERT BOSCH GMBH
发明人： Höfer, Gerald , Nothdurft, Heinz
CPC分类号： F02M41/125 , F02B2275/14 , F02M45/00 , F02M59/08 , F02M63/02 , Y02T10/123
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公开(公告)号：EP0283155A1
公开(公告)日：1988-09-21
申请号：EP88301693.3
申请日：1988-02-26
CPC分类号： F02M45/12 , F02M45/00 , F02M59/366
摘要： A fuel pumping apparatus for supplying fuel to an internal combustion engine includes a pumping plunger (13) mounted in a bore (10) and movable inwardly by an engine driven cam (8) to displace fuel through an outlet (11) to an injection nozzle (12). The quantity of fuel supplied to the nozzle is controlled by a spill valve (15). The apparatus also includes a restricted flow path (19, 18) through which fuel can flow to reduce the initial rate of fuel delivery through the nozzle, the flow path including a valve formed by the plunger and the bore so that fuel can flow through the flow path only during the initial inward movement of the plunger.
摘要翻译： 用于向内燃机供应燃料的燃料抽吸装置包括安装在孔（10）中并由发动机驱动的凸轮（8）向内移动以将燃料通过出口（11）移动到喷嘴的泵送柱塞（13） （12）。 供给喷嘴的燃料量由溢流阀（15）控制。 该装置还包括限制的流动路径（19,18），燃料可以通过该流动路径流动以减少通过喷嘴的燃料输送的初始速率，流动路径包括由柱塞和孔形成的阀，使得燃料可以流过 仅在柱塞的初始向内运动期间的流动路径。
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