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1.发明授权Fuel injection valve having different fuel injection angles at different opening amounts 失效具有不同开启量的不同燃油喷射角的燃油喷射阀
公开(公告)号：US5163621A
公开(公告)日：1992-11-17
申请号：US624104
申请日：1990-12-10
申请人： Masaaki Kato , Hiroyuki Kano , Masahiro Okajima , Yoshihiro Narahara , Tertada Kojima , Shigeki Tojo
发明人： Masaaki Kato , Hiroyuki Kano , Masahiro Okajima , Yoshihiro Narahara , Tertada Kojima , Shigeki Tojo
CPC分类号： F02M61/1813 , F02M61/163 , F02M61/18 , F02M61/1833 , F02M61/1846
摘要： A fuel injection valve of a diesel engine, comprising a valve body including a concave conical surface in the tip portion of the valve body, and fuel injection holes extending from the concave surface to the outside of the valve body, and a needle valve movable in the valve body and including a cylindrical shaft portion, a first conical surface adjacent to the shaft portion and having a conical angle smaller than that of the concave surface, the lower edge of the first conical surface defining a contact line separably contacting with the concave surface, a second conical surface adjacent to the first surface and having a conical angle substantially equal to that of the concave surface, a third conical surface adjacent to the second surface and having a conical angle greater than that of the concave surface. In case of a smaller lift amount of the needle valve, the fuel flow speed flowing into the fuel injection hole is fast and the atomized fuel injection divergence angle from the injection hole is great, thereby producing active producing mixing of the fuel with the air and enhancing the ignition feature, while in case of a greater lift amount, the fuel flow speed is slow and the atomized fuel injection divergence angle from the injection hole is small, thereby increasing the fuel flow reach and producing an active mixing of the fuel with the air by virtue of the kinetic energy of the atomized fuel flow.
摘要翻译： 一种柴油发动机的燃料喷射阀，包括阀体，该阀体包括在阀体的顶端部分中的凹形锥形表面，以及从阀体的凹面向外部延伸的燃料喷射孔， 所述阀体包括圆柱形轴部分，与所述轴部分相邻并且具有比所述凹形表面小的圆锥角的第一锥形表面，所述第一锥形表面的下边缘限定与所述凹面可分离地接触的接触线 与所述第一表面相邻并且具有基本上等于所述凹表面的圆锥角的第二锥形表面，与所述第二表面相邻并且具有大于所述凹面的圆锥角的锥形角。 在针阀的提升量较小的情况下，流入燃料喷射孔的燃料流速快，并且来自喷射孔的雾化燃料喷射发散角大，从而产生燃料与空气的主动产生混合， 提高点火特征，而在提升量较大的情况下，燃料流速变慢，喷射孔的雾化燃料喷射发散角小，从而增加燃料流量到达并产生燃料与主燃料的主动混合 借助于雾化燃料流的动能，空气。
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公开(公告)号：US6021759A
公开(公告)日：2000-02-08
申请号：US127870
申请日：1998-08-03
CPC分类号： F02M37/0041 , F02M55/04 , F02M63/0225 , F02M37/0047
摘要： A fuel supply apparatus having a cross sectional area S.sub.0 of a first low pressure fuel passage which is connected to a high pressure pump and which has a pressure regulator, a cross sectional area S.sub.1 of an orifice formed between the first low pressure fuel passage and a second low pressure fuel passage, and a cross sectional area S.sub.2 of the second low pressure fuel passage for supplying the low pressure fuel to the first low pressure fuel passage. Those cross sectional areas are set to satisfy a relationship of S.sub.1
摘要翻译： 一种具有第一低压燃料通道的横截面积S0的燃料供给装置，该第一低压燃料通道连接到高压泵并具有压力调节器，形成在第一低压燃料通道和第一低压燃料通道之间的孔口的横截面面积S1 第二低压燃料通道和用于将低压燃料供应到第一低压燃料通道的第二低压燃料通道的横截面积S2。 这些横截面积被设定为满足S1
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公开(公告)号：US5603303A
公开(公告)日：1997-02-18
申请号：US533913
申请日：1995-09-26
IPC分类号： F01L1/04 , F01L1/053 , F02F7/00 , F02M39/02 , F02M47/00 , F02M51/00 , F02M59/10 , F02M59/20 , F02M59/36 , F02M59/44 , F02M63/02 , F02M69/00 , F02M37/04
CPC分类号： F02M59/366 , F01L1/053 , F02M39/02 , F02M63/0225 , F02F7/006
摘要： A high pressure fuel supply pump comprises a cylinder, the upper part of which is exposed to the outside of a head cover that is a part of the engine housing, and is fixed to the head cover by means of bolts, not shown. The remaining portion of the high pressure fuel supply pump is received in an accommodation hole of the head cover. A pump cam 111 is mounted to a valve camshaft for driving a suction/exhaust valve and drives the high pressure fuel supply pump. The use of an exclusive shaft for pump driving only, a bearing member therefor, and the like is rendered unnecessary, which enables a reduction in the number of parts employed. Further, since the timing with which the pressurized fuel is discharged is controlled through the operation of a solenoid valve, the precision with which fuel injection is controlled is improved.
摘要翻译： 高压燃料供给泵包括气缸，其上部暴露于作为发动机壳体的一部分的头盖的外侧，并且通过未示出的螺栓固定到头罩。 高压燃料供给泵的剩余部分被容纳在头盖的容纳孔中。 泵凸轮111安装在阀凸轮轴上，用于驱动吸气/排气阀并驱动高压燃料供给泵。 不需要仅使用用于泵驱动的专用轴，其轴承构件等，这使得能够减少所使用的部件的数量。 此外，由于通过电磁阀的操作来控制加压燃料排出的时间，所以提高了控制燃料喷射的精度。
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公开(公告)号：US5664545A
公开(公告)日：1997-09-09
申请号：US565755
申请日：1995-11-30
申请人： Masaaki Kato , Masahiro Okajima
发明人： Masaaki Kato , Masahiro Okajima
CPC分类号： F02M47/027 , F02M63/0017 , F02M63/0035 , F02M63/0043 , F02M2200/04
摘要： According to the present invention, a fuel injection apparatus includes a casing having a control pressure chamber for storing fuel supplied from fuel passage, a needle valve to which fuel stored in the control pressure chamber applies pressure in the valve closing direction, a valve device for interrupting communication between the fuel passage and the control pressure chamber to seal fuel in said control pressure chamber, and volume changing device for expanding volume of the control pressure chamber after fuel is sealed in the control pressure chamber by the valve device. According to the above fuel injection device, pressure in the control pressure chamber is reduced while the fuel is stored therein by the volume changing device, the nozzle needle is lifted, and injection is started. For this reason, it is not necessary to supply surplus fuel in addition to the injection fuel during the fuel injection. In this way, the fuel supply pump is made smaller in size, and efficiency for use of supplied fuel can be improved. Further, since high-pressure fuel is not discharged from the fuel injection apparatus, pulsation within the common rail can be suppressed, and fuel injection can be stabilized.
摘要翻译： 根据本发明，燃料喷射装置包括壳体，其具有用于存储从燃料通路供给的燃料的控制压力室，控制压力室中储存的燃料向其中关闭方向施加压力的针阀， 中断燃料通道和控制压力室之间的连通以密封所述控制压力室中的燃料;以及容积改变装置，用于在燃料通过阀装置密封在控制压力室中后扩大控制压力室的容积。 根据上述燃料喷射装置，通过容积变更装置将燃料储存在控制压力室内的压力降低，喷嘴针被提起，喷射开始。 因此，在燃料喷射期间除了喷射燃料之外，不需要提供多余的燃料。 以这种方式，使燃料供给泵的尺寸更小，并且可以提高供给燃料的使用效率。 此外，由于高压燃料不从燃料喷射装置排出，所以能够抑制共轨内的脉动，能够稳定燃料喷射。
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公开(公告)号：US5624072A
公开(公告)日：1997-04-29
申请号：US434399
申请日：1995-05-03
申请人： Masahiro Okajima , Masaaki Kato
发明人： Masahiro Okajima , Masaaki Kato
CPC分类号： F02M55/04 , F02M41/1405
摘要： To provide a fuel injection pump which can sufficiently and stably supply fuel to a fuel pressurization chamber during a fuel intake stroke, a plunger chamber, a spill port and a spill passage are mutually communicable, while a reflux passage, an intake gallery, an intake passage, an intake port and the plunger chamber are mutually communicable. A reflux passage communicates with a damping chamber through a communication passage. The spill passage and the reflux passage communicate with each other, and when a spill valve opens, high-pressure fuel within the plunger chamber spills from the spill valve and into the intake gallery through the reflux passage, causing pulsation having a pressure level difference to the spill fuel. When the pulsation wave passes through the damping chamber, as the level difference in the pulsation wave is reduced, a sufficient quantity of fuel can stably be supplied from the intake gallery to the plunger chamber.
摘要翻译： 为了提供一种燃料喷射泵，其能够在燃料进气冲程期间充分且稳定地向燃料加压室供应燃料，柱塞室，溢出口和溢出通道可相互连通，而回流通道，进气道，进气口 通道，进气口和柱塞室相互连通。 回流通道通过连通通道与阻尼室连通。 溢流通道和回流通道相互连通，当溢流阀打开时，柱塞室内的高压燃料通过回流通道从溢流阀溢出进入进气道，导致压力水平差异的脉动 溢油燃料。 当脉动波通过阻尼室时，随着脉动波中的电平差减小，能够稳定地从进气道向柱塞室供给足够量的燃料。
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公开(公告)号：US6024064A
公开(公告)日：2000-02-15
申请号：US907484
申请日：1997-08-08
CPC分类号： F02D41/3845 , F02D41/065 , F02D41/22 , F02D41/3863 , F02M59/366 , F02M59/466 , F02M63/0225 , F02D2041/223 , F02D2041/224 , F02D2041/227 , F02D2250/02 , F04B2205/15
摘要： In a high pressure fuel injection system, fuel is pumped up from a fuel tank by a low pressure pump and further pressurized by a high pressure pump. Pressurized fuel is accumulated in a common rail connected to injectors which inject fuel into an engine. A high pressure regulator is connected to the common rail to mechanically relieve excessive fuel pressure in the common rail or to electronically reduce the fuel pressure when required. An electronic control unit controls operation of the high pressure pump, the high pressure regulator and the injectors according to engine operating conditions which are fed to the unit from various sensors. The fuel pressure in the common rail is decreased by operation of the high pressure pump and the high pressure regulator either rapidly or gradually according to engine operating conditions. Vapor, including fuel and air, accumulated in the common rail under high ambient temperature is purged out quickly before the engine is stared by driving only the low pressure pump under command from the electronic control unit. The system is also provided with a "limp-home" function under which a car is driven back home even when some portions of the system fail or malfunction.
摘要翻译： 在高压燃料喷射系统中，通过低压泵从燃料箱泵送燃料，并通过高压泵进一步加压。 加压燃料积聚在连接到将燃料喷射到发动机中的喷射器的共轨中。 高压调节器连接到共轨，以机械地减轻共轨中的过大的燃料压力，或者在需要时电子地降低燃料压力。 电子控制单元根据从各种传感器供给到该单元的发动机工作条件控制高压泵，高压调节器和喷射器的操作。 根据发动机工作条件，高压泵和高压调节器的操作可以快速或逐渐地降低共轨中的燃料压力。 在高温环境下累积在共轨中的燃料和空气在发动机盯着之前被迅速清除，只有通过从电子控制单元的指令驱动低压泵。 该系统还具有“跛脚回家”功能，即使在系统的某些部分发生故障或故障的情况下，也可将汽车送回家中。
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公开(公告)号：US06412713B1
公开(公告)日：2002-07-02
申请号：US09729992
申请日：2000-12-06
申请人： Masahiro Okajima , Satoru Asai
发明人： Masahiro Okajima , Satoru Asai
IPC分类号： B05B130
摘要： In an electromagnetic fuel injector, when an opening valve pulse is turned ON by a command from an ECU, a first coil is energized and a first fixed core attracts a moving core and unseats a valve member from a valve seat to open a valve of the fuel injector. A time Tx before the opening valve pulse becomes OFF, a closing valve pulse is turned ON, whereby a second coil is energized and a second fixed core attracts the moving core toward a valve closing direction. As a result, after the valve starts to close, the urging force in the valve closing direction increases rapidly, the time delay from the start of valve closing to the end is shortened, and the valve closing responsiveness improves.
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公开(公告)号：US07708954B2
公开(公告)日：2010-05-04
申请号：US11336824
申请日：2006-01-23
申请人： Masahiro Okajima
发明人： Masahiro Okajima
IPC分类号： B01D50/00
CPC分类号： B01D53/9431 , F01N3/035 , F01N3/106 , F01N3/2033 , F01N3/2066 , F01N3/2889 , F01N13/009 , F01N2240/02 , F01N2370/02 , F01N2510/06 , F01N2610/03 , Y02T10/24 , Y02T10/26
摘要： A nitrogen oxides purification device has an exhaust gas heating section and a nitrogen oxides purification section. The exhaust gas heating section has a fuel injection device and a catalytic metal. The nitrogen oxides purification device is provided in a heat exchanger having a downstream exhaust gas flow passage located downstream of the nitrogen oxides purification section and an upstream exhaust gas flow passage located upstream of the exhaust gas heating section. Exhaust gas heated at the exhaust gas heating section flows through the downstream exhaust gas flow passage. The exhaust gas to be heated at the exhaust gas heating section flows through the upstream exhaust gas flow passage. Heat is transferred between the downstream and upstream exhaust gas flow passages. The nitrogen oxides purification device operates at low fuel consumption.
摘要翻译： 氮氧化物净化装置具有排气加热部和氮氧化物净化部。 废气加热部具有燃料喷射装置和催化金属。 氮氧化物净化装置设置在具有位于氮氧化物净化部的下游的下游排气流路和位于废气加热部的上游的上游排气流路的热交换器中。 在排气加热部分被加热的废气流经下游排气流路。 在废气加热部分被加热的废气流过上游废气流动通道。 在下游和上游废气流动通道之间传递热量。 氮氧化物净化装置以低燃料消耗运行。
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公开(公告)号：US06830036B2
公开(公告)日：2004-12-14
申请号：US10625849
申请日：2003-07-24
IPC分类号： F02M5502
CPC分类号： F02M55/025 , F02M61/14
摘要： A fuel transfer pipe and a cylinder head of an engine in which a fuel injection device is restricted from being separated from each other by a restricting member. A pressing member is interposed between the fuel transfer pipe and the cylinder head to receive a restricting force of the restricting member presses the fuel transfer pipe to a side opposing the cylinder head and presses the fuel injection device to a side of the cylinder head by a reaction force against the restricting force.
摘要翻译： 燃料输送管和发动机的气缸盖，其中燃料喷射装置被限制构件彼此分离。 在燃料传送管和气缸盖之间插入有按压构件，以接收限制构件的限制力将燃料传递管按压到与气缸盖相对的一侧，并将燃料喷射装置按压到气缸盖的一侧 对抗限制力的反作用力。
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10.发明授权公开(公告)号：US07763214B2
公开(公告)日：2010-07-27
申请号：US11525867
申请日：2006-09-25
CPC分类号： F01N3/2066 , B01D53/9431 , B01D2251/202 , B01D2258/012 , F01N2240/02 , F01N2240/22 , F01N2240/30 , F01N2610/03 , Y02E60/364 , Y02T10/24
摘要： A reforming device includes a reforming part that subjects a hydrocarbon-based raw material to be reformed to a reforming reaction to form a reducing agent to be supplied to a reducing catalyst for reducing nitrogen oxide selectively. The reforming part has a reforming reaction region through which the raw material to be reformed passes and is reacted with supplied hydrogen atoms supplied so as to be reformed to the reducing agent. For example, a hydrogen permeable membrane having a first surface and a second surface may be provided in the reforming part to permeate hydrogen atoms from the first surface to the second surface and to produce the hydrogen atoms on the second surface. The reforming device can be suitably used for an exhaust gas control system for cleaning exhaust gas, for example.
摘要翻译： 重整装置包括将烃系原料进行重整而进行重整反应的重整部，以形成还原剂，供给还原催化剂以选择性还原氮氧化物。 重整部分具有重整反应区域，待重整的原料通过该重整反应区域，并与所提供的氢原子反应以将其重整为还原剂。 例如，可以在重整部中设置具有第一表面和第二表面的氢可渗透膜，以从第一表面渗透到氢原子到第二表面，并在第二表面上产生氢原子。 重整装置例如可以适用于排气净化排气控制系统。
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