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公开(公告)号：US07100579B2
公开(公告)日：2006-09-05
申请号：US10332501
申请日：2001-07-09
申请人： Takashi Kaneko , Hiroyuki Ishida , Kenichi Iwanaga , Takeshi Arai , Shinji Yasueda , Hiroshi Yoshizumi , Akira Numata
发明人： Takashi Kaneko , Hiroyuki Ishida , Kenichi Iwanaga , Takeshi Arai , Shinji Yasueda , Hiroshi Yoshizumi , Akira Numata
IPC分类号： F02M37/04
CPC分类号： F02M45/12 , F02M45/00 , F02M57/023 , F02M59/366 , F02M63/0049 , F02M2200/315 , F02M2200/44
摘要： Fuel injection equipment is provided which realizes characteristics of fuel injection proper for all over the operation range of an engine, can further reduce nitrogen oxide(NOx) emission, and is high in mechanical durability. The fuel injection equipment for an internal combustion engine comprises an injection pump having a plunger part and a fuel passage equipped with a main electromagnetic valve, a fuel supply part for supplying the fuel to the fuel injection pump, a fuel injection pipe for sending the fuel to an injection nozzle part, and a secondary electromagnetic valve attached to an overflow pipe for returning to said fuel supply part the redundant fuel not to be injected from said unit injector, wherein an orifice is attached to said overflow pipe.
摘要翻译： 提供燃油喷射设备，其实现了在发动机的整个操作范围内适合的燃料喷射特性，可以进一步减少氮氧化物（NOx）排放，并且机械耐久性高。 用于内燃机的燃料喷射设备包括具有柱塞部分和配备有主电磁阀的燃料通道的喷射泵，用于将燃料供给到燃料喷射泵的燃料供给部，用于将燃料送出的燃料喷射管 连接到溢流管的次级电磁阀，用于使从所述单元喷射器不喷射的所述冗余燃料返回到所述燃料供给部，其中，所述溢流管附接有孔。
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2.发明申请Fuel injection device and diesel engine having the same, and fuel injection device controlling method 审中-公开具有相同的燃料喷射装置和柴油发动机，以及燃料喷射装置控制方法公开(公告)号：US20050039724A1
公开(公告)日：2005-02-24
申请号：US10492517
申请日：2002-10-16
申请人： Hiroyuki Ishida , Toshikazu Hayashi , Takeshi Arai , Shoji Namekawa , Hiroshi Yoshizumi , Noriaki Ida , Etsuo Kunimoto
发明人： Hiroyuki Ishida , Toshikazu Hayashi , Takeshi Arai , Shoji Namekawa , Hiroshi Yoshizumi , Noriaki Ida , Etsuo Kunimoto
CPC分类号： F02M45/12 , F02M45/00 , F02M45/02 , F02M45/04 , F02M63/0005 , F02M63/0007 , F02M63/0029 , F02M63/0064 , F02M63/0225
摘要： The present invention takes as its objective to provide a fuel injection device, and a diesel engine equipped therewith, which can reduce the amount of NOx in the exhaust gas while maintaining the rate of fuel consumption satisfactory. This fuel injection device includes a pressure accumulator which accumulates fuel whose pressure has been elevated, a fuel injection valve which opens by the supply of the fuel from the pressure accumulator and injects the fuel, a supply conduit which supplies fuel from the pressure accumulator to the fuel injection valve, and two valve apparatuses which are connected in the supply conduit in parallel and each of which interrupts fuel supply to the fuel injection valve. And the fuel flow amount when one of the electromagnetic valves is open is set to be smaller than the fuel flow amount when the other electromagnetic valve is open; and, during fuel supply to the fuel injection valve, an electromagnetic valve opens first, and next an electromagnetic valve opens.
摘要翻译： 本发明的目的是提供一种燃料喷射装置和配备有该喷射装置的柴油发动机，其能够在保持燃料消耗率的同时保持排气中的NOx的量。 该燃料喷射装置包括：蓄压器，其累积已经升高了压力的燃料;燃料喷射阀，其通过从蓄压器供给燃料而喷射燃料;供给管道，其将来自蓄压器的燃料供给到 燃料喷射阀和两个并联连接在供应管道中的阀装置，每个阀装置中断向燃料喷射阀的燃料供给。 当电磁阀中的一个打开时的燃料流量设定为小于另一个电磁阀打开时的燃料流量; 并且在向燃料喷射阀的燃料供给期间，电磁阀首先打开，接着电磁阀打开。
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公开(公告)号：US06895937B2
公开(公告)日：2005-05-24
申请号：US10607028
申请日：2003-06-27
CPC分类号： F02M63/029 , F02M45/00 , F02M45/12 , F02M63/0007 , F02M63/0225 , F02M2200/40
摘要： A fuel injector can reduce the smoke emissions generated during low load and decrease NOx during high load. The fuel injector comprises a first accumulator for accumulating a pressurized fuel, a second accumulator for accumulating a fuel having a higher pressure than the pressure of the fuel in the first accumulator, fuel injection valves to which the fuel from the first and second accumulators is supplied and thereby the fuel injection valves are opened, and the fuel is injected, fuel feeding pipes for feeding the fuel accumulated in the first and second accumulators to the fuel injection valves; a first valve mechanism which is provided at the fuel feeding pipe and which opens and allows the flow of the fuel in the first accumulator to the fuel injection valves, a second valve mechanism which is provided at the fuel feeding pipe and which opens and allows the flow of the fuel in the second accumulator to the fuel injection valves, and a control device for controlling the first and second valve mechanisms. The first accumulator and the first valve mechanism, and the second accumulator and the second valve mechanism, are provided in parallel to each other to the fuel feeding pipe. In a normal injection mode, the control device makes the first and second valve mechanisms open at the same time. In an injection rate control mode, the control device makes an open timing of the first valve mechanism earlier than an open timing in the normal injection mode.
摘要翻译： 燃油喷射器可以减少低负荷期间产生的烟雾排放，并在高负荷时减少NOx。 燃料喷射器包括用于累积加压燃料的第一蓄能器，用于累积具有比第一蓄能器中的燃料压力更高的压力的燃料的第二蓄能器，来自第一和第二蓄能器的燃料供应到的燃料喷射阀 从而燃料喷射阀打开，并且喷射燃料;用于将累积在第一和第二蓄能器中的燃料供给到燃料喷射阀的燃料供给管; 第一阀机构，其设置在所述燃料供给管处并且打开并允许所述第一储存器中的燃料流到所述燃料喷射阀;第二阀机构，设置在所述燃料供给管处，并且所述第二阀机构打开并允许 第二蓄能器中的燃料流向燃料喷射阀，以及用于控制第一和第二阀机构的控制装置。 第一蓄能器和第一阀机构以及第二蓄能器和第二阀机构彼此平行地设置到燃料供给管。 在正常喷射模式中，控制装置使第一和第二阀机构同时打开。 在喷射速率控制模式中，控制装置比正常喷射模式中的打开定时更早地使第一阀机构的打开正时。
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公开(公告)号：US20100282871A1
公开(公告)日：2010-11-11
申请号：US12811412
申请日：2009-01-28
申请人： Hiroshi Yoshizumi , Hajime Suzuki , Masataka Ota
发明人： Hiroshi Yoshizumi , Hajime Suzuki , Masataka Ota
摘要： A fuel injection valve can be provided, with which temperature at needle valve seating position can be decreased and carburization of fuel and deposition of the carbide near the needle valve seating position can be prevented resulting in stable normal fuel injection control, and which is applicable to small and middle and also to large engines, particularly gas engines. The fuel injection valve is composed such that distance (A) from a seating face of the nozzle in the nozzle supporting body to a seating position of the needle valve in the nozzle is determined to be smaller than distance (B) from the nozzle seating face in the nozzle supporting body to the lower end of clearance between a nozzle insertion hole of the nozzle supporting body and a fitting part of the nozzle inserted into the nozzle insertion hole, thereby suppressing heat flow to the needle valve seating position.
摘要翻译： 可以设置燃料喷射阀，可以防止针阀安置位置处的温度，并且可以防止燃料渗碳和碳化氢在针阀座位置附近沉积，从而实现稳定的正常燃油喷射控制，并且适用于 小型和中型，还有大型发动机，特别是燃气发动机。 燃料喷射阀被构成为使得从喷嘴支撑体中的喷嘴的座面到喷嘴中的针阀的就座位置的距离（A）被确定为小于从喷嘴座面 在喷嘴支撑体中，喷嘴支撑体的喷嘴插入孔和插入喷嘴插入孔的喷嘴的嵌合部之间的间隙的下端，从而抑制到针阀的就座位置的热流。
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公开(公告)号：US07415973B2
公开(公告)日：2008-08-26
申请号：US11822968
申请日：2007-07-11
CPC分类号： F02M59/265
摘要： A fuel injection pump equipped with a rotary deflector having an increased lifetime and reduced maintenance cost required to replace the deflector when it is wasted due to cavitation erosion. The deflector comprises a stationary holder and a tip member which is supported rotatably by the stationary holder so that the tip member is rotated by fuel flow that outbursts from the plunger room through the inlet/spill port and impinges against the tip member when fuel injection ends. This evades concentrated impingement at a specific portion of the tip member and prevents the occurrence of cavitation erosion.
摘要翻译： 一种装备有旋转偏转器的燃料喷射泵，其具有在由于气蚀侵蚀而被浪费时更换偏转器所需的寿命增加和维护成本降低。 偏转器包括固定保持器和尖端构件，其由固定保持器可旋转地支撑，使得末端构件通过燃料流旋转，燃料流通过入口/溢出口从柱塞室突出，并且当燃料喷射结束时撞击顶端构件 。 这避免了尖端部件的特定部分的集中冲击，并且防止气蚀的发生。
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公开(公告)号：US20080105234A1
公开(公告)日：2008-05-08
申请号：US11822968
申请日：2007-07-11
IPC分类号： F02M41/00
CPC分类号： F02M59/265
摘要： A fuel injection pump equipped with a rotary deflector, with which lifetime of the deflector is increased and maintenance cost which is required to replace the deflector when it is wasted due to cavitation erosion is decreased. The deflector comprises a stationary holder and a tip member which is supported rotatably by the stationary holder so that the tip member is rotated by fuel flow that outbursts from the plunger room through the inlet/spill port and impinges against the tip member when fuel injection ends, thereby evading concentrated impingement at a specific portion of the tip member and preventing occurrence of cavitation erosion.
摘要翻译： 配备有旋转偏转器的燃料喷射泵减少了偏转器的寿命，并且当由于空化侵蚀而被浪费时更换偏转器所需的维护成本降低。 偏转器包括固定保持器和尖端构件，其由固定保持器可旋转地支撑，使得末端构件通过燃料流旋转，燃料流通过入口/溢出口从柱塞室突出，并且当燃料喷射结束时撞击顶端构件 从而避免在尖端部件的特定部分处的集中冲击，并防止气蚀的发生。
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