公开(公告)号：US6024072A

公开(公告)日：2000-02-15

申请号：US081606

申请日：1998-05-20

申请人： Mikio Hamada

发明人： Mikio Hamada

IPC分类号： F02D41/30 ,  F02M32/04

CPC分类号： F02D41/3082 ,  F02D2250/31

摘要： In a fuel pump control apparatus provided by the present invention, if a target fuel pressure is changed, processing is carried out to determine whether the target fuel pressure has been increased or decreased so that proper transient state control can be executed. If the target fuel pressure has been increased, a fuel pump is driven by a maximum driving signal till the pressure of fuel reaches 90% of a new higher target fuel pressure. If the target fuel pressure has been decreased, on the other hand, the fuel pump is driven by a minimum driving signal till the pressure of fuel reaches 110% of a new lower target fuel pressure. In either case, transition state control is executed thereafter to drive the fuel pump at a duty ratio determined on the basis of an injection flow rate and the target fuel pressure till a predetermined delay time lapses. After the transition state control is finished, a steady state control is restored. In the steady state control, the duty ratio is determined on the basis of the pressure of the supplied fuel and the target fuel pressure. As a result, the fuel pump control apparatus provided by the present invention is capable of well keeping up with a change in supplied fuel pressure required by the internal combustion engine while allowing the cost and the size thereof to be reduced.

摘要翻译： 在本发明提供的燃料泵控制装置中，如果改变目标燃料压力，则进行处理以确定目标燃料压力是否已经增加或减少，从而可以执行适当的过渡状态控制。 如果目标燃料压力增加，则燃料泵由最大驱动信号驱动，直到燃料压力达到新的较高目标燃料压力的90％。 如果目标燃料压力降低，另一方面燃料泵由最小驱动信号驱动，直到燃料压力达到新的较低目标燃料压力的110％。 在这两种情况下，随后执行过渡状态控制，以基于喷射流量和目标燃料压力确定的占空比来驱动燃料泵直到预定的延迟时间过去。 过渡状态控制结束后，恢复稳态控制。 在稳态控制中，基于所供给的燃料的压力和目标燃料压力来确定占空比。 结果，本发明提供的燃料泵控制装置能够很好地跟上内燃机所需的供给燃料压力的变化，同时能够降低成本和尺寸。

公开(公告)号：US07159573B2

公开(公告)日：2007-01-09

申请号：US10678098

申请日：2003-10-06

申请人： Kingo Okada

发明人： Kingo Okada

IPC分类号： F02M32/04

CPC分类号： F02M37/103 ,  B01D35/027 ,  B01D35/26 ,  B01D2201/50 ,  F02M37/106 ,  F02M2037/082

摘要： A fuel feed apparatus includes a grounded conductive resinous sub tank, a conductive fuel inlet pipe integrally formed with a bottom section of the sub tank and a conductive resinous jet nozzle included in a jet pump. The jet nozzle is welded on the bottom section of the sub tank, and has a nozzle port for jetting fuel. Here, the jet nozzle, the jet pump and the fuel inlet pipe are grounded via the sub tank without individual wiring member. Even if static electricity is generated due to friction between the jet nozzle and fuel jetted from the nozzle port, electrical charging can be prohibited. Thus, dielectric breakdown due to the electrically charging and cracking resulting from the dielectric breakdown can be also prohibited.

摘要翻译： 燃料供给装置包括接地导电树脂副罐，与副罐的底部一体形成的导电燃料入口管和包括在喷射泵中的导电树脂喷嘴。 喷嘴被焊接在副罐的底部，并具有用于喷射燃料的喷嘴。 这里，喷嘴，喷射泵和燃料入口管经由副罐接地而没有单独的配线构件。 即使由于喷嘴和从喷嘴口喷出的燃料之间的摩擦而产生静电，也可以禁止充电。 因此，也可以禁止由于介电击穿导致的充电和破裂导致的绝缘击穿。

公开(公告)号：US6067964A

公开(公告)日：2000-05-30

申请号：US331476

申请日：1999-07-23

申请人： Manfred Ruoff ,  Horst Harndorf

发明人： Manfred Ruoff ,  Horst Harndorf

IPC分类号： F02M43/00 ,  F02M43/02 ,  F02M43/04 ,  F02M47/00 ,  F02M47/02 ,  F02M63/00 ,  F02M32/04

CPC分类号： F02M43/04 ,  F02M43/00 ,  F02M43/02 ,  F02M47/027 ,  F02M2200/40

摘要： A fuel injection system having a common rail pressure reservoir filled with high-pressure fuel and having a dual-fuel injector for a bi-fluid injection of fuel and an additive fluid into an internal combustion engine. The system includes a first 2/2-way valve in the injection line between the common rail pressure reservoir and a pressure chamber encompassing the injector needle of the dual-fuel injector as well as a second 2/2-way valve, whose inlet is connected via a supply line to the injection line at a point between the first 2/2-way valve and the pressure chamber, and whose outlet is connected to the low-pressure fuel side by way of an outlet line. As a result, the otherwise conventional 3/2-way solenoid control valves, which are significantly more complex technically, can be replaced by more reasonably priced 2/2-way valves. At the same time, this raises the possibility of shifting the quantity metering for additive fluid to a single metering valve that serves an entire group of injectors.

摘要翻译： PCT No.PCT / DE98 / 02771 Sec。 371日期：1999年7月23日 102（e）日期1999年7月23日PCT提交1998年9月18日PCT公布。 WO99 /​​ 20893 PCT出版物 日期1999年4月29日一种燃料喷射系统，其具有填充有高压燃料的共轨压力储存器，并具有双燃料喷射器，用于将燃料和添加剂流体双流体喷射到内燃机中。 该系统包括在共轨压力储存器和包围双燃料喷射器的喷射器针头的压力室之间的注入管线中的第一个二分之二阀以及第二个二通阀，其入口是 在第一二通阀和压力室之间的点处通过供应管线连接到注入管线，并且其出口通过出口管线连接到低压燃料侧。 因此，技术上显着更复杂的其他传统的3/2通电磁阀可以用更合价格的二位二通阀代替。 同时，这提高了将添加剂流量的计量转移到为整个喷射器组服务的单个计量阀的可能性。