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    High-pressure fuel pump and assembly structure of high-pressure pump
    1.
    发明授权
    High-pressure fuel pump and assembly structure of high-pressure pump 有权
    高压燃油泵及高压泵组装结构

    公开(公告)号：US07114928B2

    公开(公告)日：2006-10-03

    申请号：US10257715

    申请日：2001-04-17

    申请人： Kazuhiro Asayama ,  Tomoji Ishikawa ,  Naoki Kurata ,  Daichi Yamazaki ,  Masanori Sugiyama ,  Hiroshi Inoue

    发明人： Kazuhiro Asayama ,  Tomoji Ishikawa ,  Naoki Kurata ,  Daichi Yamazaki ,  Masanori Sugiyama ,  Hiroshi Inoue

    IPC分类号： F04B19/00

    CPC分类号： F02M59/48 ,  F02M39/00 ,  F02M59/102 ,  F02M59/44 ,  F02M59/442 ,  F02M63/0225 ,  F04B1/0404 ,  F04B1/0448 ,  F04B53/16 ,  F04B53/22

    摘要： A high pressure pump for decreasing an initial axial force of a clamping bolt and preventing distortion of a sealing surface and a cylinder form. The high pressure pump has an intermediate member including a cylinder body. The cylinder body has a pressurizing chamber communicated with a cylinder accommodating a plunger. Fluid in the pressurizing chamber is pressurized by reciprocating the plunger. The intermediate member is arranged between a cover and a flange and clamped by a clamping bolt. The clamping bolt has an exposed area at its axially central area where the entire periphery of the clamping bolt is exposed from the cover and the flange. One or both of the cover and the flange clamp the intermediate member with a flexing elastic force.

    摘要翻译： 用于减小夹紧螺栓的初始轴向力并防止密封表面和气缸形式变形的高压泵。 高压泵具有包括缸体的中间构件。 气缸体具有与容纳柱塞的气缸连通的加压室。 加压室中的流体通过使柱塞往复运动而加压。 中间构件布置在盖和凸缘之间并由夹紧螺栓夹紧。 夹紧螺栓在其轴向中心区域处具有暴露区域，其中夹紧螺栓的整个周边从盖和凸缘暴露。 所述盖和所述法兰中的一个或两者以弯曲弹性力夹紧所述中间构件。

    Valve train in internal combustion engine
    2.
    发明授权
    Valve train in internal combustion engine 失效
    内燃机中的气门机构

    公开(公告)号：US5899181A

    公开(公告)日：1999-05-04

    申请号：US994017

    申请日：1997-12-18

    申请人： Naoki Kurata ,  Masanori Sugiyama ,  Daichi Yamazaki

    发明人： Naoki Kurata ,  Masanori Sugiyama ,  Daichi Yamazaki

    IPC分类号： F02B67/06 ,  F01L1/02 ,  F01L1/04 ,  F01L1/053 ,  F01L1/08 ,  F01L1/46 ,  F02M37/06 ,  F02M39/02 ,  F02M59/02 ,  F02M63/02

    CPC分类号： F01L1/024 ,  F01L1/0532 ,  F01L1/08 ,  F01L1/46 ,  F02M37/06 ,  F02M39/02 ,  F02M63/0225 ,  F01L2001/0478 ,  F02B2275/18

    摘要： A valve train for driving an engine valve in an internal combustion engine. A pump having a pressure chamber compresses and supplies fuel to the engine. An intake camshaft has valve cams for selectively opening and closing the intake valves and a pump cam for driving the pump. The intake camshaft has a torque fluctuation as a result of driving the intake valves and as a result of compressing fuel by the pump. A timing belt connects a crankshaft to the intake camshaft. The pump cam has a phase with respect to the intake camshaft to reduce a composite of the torque fluctuation (the net torque fluctuation) generated in the intake camshaft by the intake valves and the pump. This improves the life of the timing belt.

    摘要翻译： 一种用于驱动内燃机中的发动机气门的气门机构。 具有压力室的泵压缩并向发动机供应燃料。 进气凸轮轴具有用于选择性地打开和关闭进气门的阀门凸轮和用于驱动泵的泵凸轮。 进气凸轮轴具有作为驱动进气门的结果的扭矩波动，以及由泵压缩燃料的结果。 正时皮带将曲轴连接到进气凸轮轴。 泵凸轮相对于进气凸轮轴具有相位，以减少由进气门和泵在进气凸轮轴中产生的扭矩波动（净转矩波动）的组合。 这提高了同步皮带的使用寿命。

    High-pressure fuel pump and cam for high-pressure fuel pump
    3.
    发明授权
    High-pressure fuel pump and cam for high-pressure fuel pump 有权
    高压燃油泵和高压燃油泵凸轮

    公开(公告)号：US06694952B1

    公开(公告)日：2004-02-24

    申请号：US09612526

    申请日：2000-07-06

    申请人： Daichi Yamazaki ,  Masanori Sugiyama ,  Naoki Kurata

    发明人： Daichi Yamazaki ,  Masanori Sugiyama ,  Naoki Kurata

    IPC分类号： F02M3704

    CPC分类号： F04B9/042 ,  F02M59/102 ,  F02M63/0225

    摘要： A cam for driving a high-pressure fuel pump has a cam profile that is asymmetric for the suction stroke and the ejection stroke. The cam profile is set so that the cam angle for the ejection stroke is greater than the cam angle for the suction stroke. Therefore, even when the cam drive shaft is rotating at a constant speed, the duration of the ejection stroke becomes longer than the duration of the suction stroke. That is, the changing speed of the capacity of a pressurizing chamber becomes less during the ejection stroke than during the suction stroke.

    摘要翻译： 用于驱动高压燃料泵的凸轮具有用于吸入行程和排出行程不对称的凸轮轮廓。 凸轮轮廓被设定为使得用于喷射行程的凸轮角度大于吸入冲程的凸轮角度。 因此，即使当凸轮驱动轴以恒定速度旋转时，喷射行程的持续时间也会比吸入行程的持续时间长。 也就是说，在排出冲程期间加压室的容量的变化速度变得比在吸入行程期间变化的速度变小。

    Fuel pump control apparatus
    4.
    发明授权
    Fuel pump control apparatus 有权
    燃油泵控制装置

    公开(公告)号：US06314945B1

    公开(公告)日：2001-11-13

    申请号：US09612305

    申请日：2000-07-07

    申请人： Masanori Sugiyama ,  Daichi Yamazaki ,  Naoki Kurata

    发明人： Masanori Sugiyama ,  Daichi Yamazaki ,  Naoki Kurata

    IPC分类号： F02M3900

    CPC分类号： F02D41/3845 ,  F02B2075/125 ,  F02B2275/18 ,  F02D41/08 ,  F02D41/3809 ,  F02D41/406 ,  F02M59/366 ,  F02M63/0225 ,  Y02T10/123 ,  Y02T10/44

    摘要： During the idling state, the number of times of injecting fuel per performance of the fuel delivery from a high-pressure fuel pump is decreased or increased. If the number of times of injecting fuel per performance of the fuel delivery is decreased, the amount of fuel that needs to be delivered by one performance of the fuel delivery is reduced, so that the timing of starting to close an electromagnetic spill valve can be delayed. Therefore, the lift of a plunger for 1° rotation of a cam (i.e., cam speed) at the time of closure of the electromagnetic spill valve decreases, so that the force applied from fuel to the electromagnetic spill valve in the valve closing direction decreases. If the number of times of injecting fuel per performance of the fuel delivery is increased, the noises produced at the time of closure of the electromagnetic spill valve increase because the timing of starting to close the spill valve is advanced to increase the amount of fuel delivered by one performance of the fuel delivery. However, the number of times of closing the electromagnetic spill valve during a predetermined period decreases, so that the number of occurrences of the valve closure noises decreases.

    摘要翻译： 在怠速状态下，从高压燃料泵执行燃料输送的燃料喷射次数减少或增加。 如果每次执行燃料输送喷射燃料的次数减少，则通过燃料输送的一次性能需要输送的燃料量减少，使得开始关闭电磁溢流阀的时间可以是 延迟。 因此，在关闭电磁溢流阀时凸轮1°旋转的柱塞（即凸轮转速）的提升减小，使得从关闭方向的燃料向电磁溢流阀施加的力减小 。 如果每次执行燃料输送喷射燃料的次数增加，则在电磁溢流阀关闭时产生的噪声增加，因为开始关闭溢流阀的时间被推进以增加输送的燃料量 通过一次表现燃料输送。 然而，在预定时间段期间关闭电磁溢流阀的次数减少，使得阀关闭噪声的发生次数减少。

    Fuel pressure control apparatus and method of internal combustion engine
    5.
    发明授权
    Fuel pressure control apparatus and method of internal combustion engine 失效
    内燃机燃油压力控制装置及方法

    公开(公告)号：US06539922B2

    公开(公告)日：2003-04-01

    申请号：US09825847

    申请日：2001-04-05

    申请人： Mitsuto Sakai ,  Masanori Sugiyama ,  Naoki Kurata ,  Daichi Yamazaki

    发明人： Mitsuto Sakai ,  Masanori Sugiyama ,  Naoki Kurata ,  Daichi Yamazaki

    IPC分类号： F02M3706

    CPC分类号： F02D41/3845 ,  F02B3/06 ,  F02D41/2464 ,  F02D41/401 ,  F02D2200/0602 ,  F02D2250/31 ,  Y02T10/44

    摘要： The amount of fuel ejected from a high-pressure fuel pump that ejects fuel toward a delivery pipe is adjusted by controlling the valve closure start timing of an electromagnetic spill valve. In this manner, the fuel pressure in the delivery pipe is controlled. The duty ratio DT used for controlling the valve closure start timing of the electromagnetic spill valve is calculated based on a valve closure start timing that provides a maximum amount of fuel ejection. The actual fuel ejection characteristic of a high-pressure fuel pump may deviate from a designed state due to individual differences of the pump. However, the valve closure start timing of the electromagnetic spill valve that provides the maximum amount of fuel ejection in accordance with the actual fuel ejection characteristic is learned as a maximum ejection timing. Based on the maximum ejection timing, the duty ratio DT is calculated.

    摘要翻译： 通过控制电磁溢流阀的阀闭合开始正时，调节从向输送管喷射燃料的高压燃料泵喷出的燃料量。 以这种方式，控制输送管中的燃料压力。 基于提供最大量的燃料喷射的阀关闭开始时刻计算用于控制电磁溢流阀的阀闭合开始正时的占空比DT。 由于泵的个体差异，高压燃料泵的实际燃料喷射特性可能偏离设计状态。 然而，根据实际燃料喷射特性提供最大量的燃料喷射的电磁溢流阀的阀闭合开始正时被学习为最大喷射定时。 基于最大喷射定时，计算占空比DT。

    Direct injection type internal combustion engine control apparatus and control method of the same
    6.
    发明授权
    Direct injection type internal combustion engine control apparatus and control method of the same 有权
    直喷式内燃机控制装置及其控制方法相同

    公开(公告)号：US06474294B2

    公开(公告)日：2002-11-05

    申请号：US09850266

    申请日：2001-05-08

    申请人： Daichi Yamazaki ,  Naoki Kurata ,  Masanori Sugiyama

    发明人： Daichi Yamazaki ,  Naoki Kurata ,  Masanori Sugiyama

    IPC分类号： F02B1700

    CPC分类号： F02D41/042 ,  F02D41/3029 ,  F02D41/3836 ,  F02D41/3845 ,  F02D2041/0015 ,  F02D2200/0404 ,  F02D2200/0406 ,  F02D2200/0602 ,  F02D2200/503 ,  F02D2200/602 ,  F02D2250/31 ,  F02N11/0814

    摘要： A direct injection type internal combustion engine control apparatus is capable of increasing the frequency of performing the compression-stroke fuel injection following an automatic start of the engine by maintaining a sufficient fuel pressure for the compression-stroke injection even after the engine has been stopped by an automatic stop function. When an immediately-before-automatic-stop flag is “ON”, the control apparatus sets the control duty of an electromagnetic spill valve to 100 (%) to raise the fuel pressure immediately before the automatic stop. As a result, after the engine stops, the fuel pressure starts to decrease from a high pressure, so that there will be a long time before the fuel pressure decreases to a level that makes it impossible to perform appropriate fuel injection into the combustion chamber during the compression stroke. Therefore, the possibility of performance of the compression-stroke injection immediately following an automatic start is increased, and the frequency of performing the compression-stroke injection is increased. Thus, sufficient improvements in fuel economy and the like can be achieved.

    摘要翻译： 直喷式内燃机控制装置能够通过在发动机停止后通过维持用于压缩冲程喷射的足够的燃料压力来增加执行发动机自动启动之后的压缩冲程燃料喷射的频率 自动停止功能。 当立即自动停止标志为“ON”时，控制装置将电磁溢流阀的控制占空比设定为100（％），以提高紧接在自动停止之前的燃料压力。 结果，在发动机停止之后，燃料压力从高压开始下降，使得在燃料压力降低到使得不可能在燃烧室内进行适当的燃料喷射之前的较长时间 压缩冲程。 因此，紧接在自动启动之后执行压缩冲程喷射的可能性增加，并且执行压缩冲程喷射的频率增加。 因此，可以实现燃料经济性等的充分改善。

    Fuel supplying apparatus and method for internal combustion engine
    7.
    发明授权
    Fuel supplying apparatus and method for internal combustion engine 有权
    用于内燃机的燃料供应装置和方法

    公开(公告)号：US06336445B1

    公开(公告)日：2002-01-08

    申请号：US09632786

    申请日：2000-08-04

    申请人： Daichi Yamazaki ,  Naoki Kurata ,  Masanori Sugiyama

    发明人： Daichi Yamazaki ,  Naoki Kurata ,  Masanori Sugiyama

    IPC分类号： F02M3704

    CPC分类号： F02M59/102 ,  F02B2075/125 ,  F02B2275/18 ,  F02D41/3845 ,  F02M59/366 ,  F02M63/0225 ,  Y02T10/123

    摘要： In a high-pressure fuel pump of a fuel supplying apparatus, the amount of movement of a plunger (cam speed) occurring during a unit-angle rotation of a cam changes in accordance with the phase of the cam. The amount of fuel delivered from the high-pressure fuel pump is controlled by changing the start timing of closure of an electromagnetic spill valve. However, the amount of fuel delivered is greatly affected by the cam speed at the start of closure of the spill valve. Therefore, for example, a cam profile of the cam is set such that the closure start timing of the electromagnetic spill valve that provides a maximum amount of fuel that needs to be delivered for fuel injection is placed within a predetermined cam angle range in which the change in the cam speed with respect to changes in phase of the cam is constant. Therefore, the changing of the closure start timing of the electromagnetic spill valve for the purpose of adjusting the amount of fuel delivered is performed within the predetermined cam angle range.

    摘要翻译： 在燃料供给装置的高压燃料泵中，在凸轮的单位角旋转期间发生的柱塞（凸轮转速）的移动量根据凸轮的相位而变化。 通过改变电磁溢流阀的关闭的开始时间来控制从高压燃料泵输送的燃料量。 然而，输送的燃料量受溢流阀开始关闭时的凸轮转速的影响很大。 因此，例如，设置凸轮的凸轮轮廓，使得提供需要输送用于燃料喷射的最大量的燃料的电磁溢流阀的闭合开始正时被放置在预定的凸轮角度范围内，其中 相对于凸轮相位变化的凸轮转速的变化是恒定的。 因此，在规定的凸轮角度范围内进行用于调节输送量的电磁溢流阀的闭合开始时刻的变更。