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1. 发明公开

KR1020010021122A 고압 연료 펌프 및 고압 연료 펌프용 캠 有权
标题翻译：高压燃油泵
公开(公告)号：KR1020010021122A
公开(公告)日：2001-03-15
申请号：KR1020000042649
申请日：2000-07-25
申请人： 도요타지도샤가부시키가이샤
发明人： 야마자키다이치 , 스기야마마사노리 , 구라타나오키
IPC分类号： F02M39/00
CPC分类号： F04B9/042 , F02M59/102 , F02M63/0225
摘要： PURPOSE: To preferably reduce an operating noise related to closing of a spill valve even when an internal combustion engine is in the low load operation state such as idling operation state. CONSTITUTION: The cam profile of a cam 25 for driving a high pressure fuel pump is asymmetric between an intake stroke and an injection stroke. To be concrete, the cam angle θ1 in the injection stroke is made larger than the cam angle θ2, so that even if the driving shaft is rotated at a constant speed, the time required for the injection stroke becomes longer, so the volume change speed of the pressure chamber in the injection stroke is lessened.
摘要翻译：目的：即使当内燃机处于诸如空转操作状态的低负载运行状态时，也可优选地减少与溢流阀的关闭相关的操作噪音。构成：用于驱动高压燃料泵的凸轮25的凸轮轮廓在进气冲程和喷射冲程之间是不对称的。具体而言，喷射行程中的凸轮角度θ1大于凸轮角度2，使得即使驱动轴以恒定速度旋转，喷射冲程所需的时间变长，因此喷射行程中的压力室的体积变化速度减小。

2. 发明授权

KR100373616B1 고압 연료 펌프 및 고압 연료 펌프용 캠 有权
标题翻译：高级连锁店高级连锁店
公开(公告)号：KR100373616B1
公开(公告)日：2003-02-26
申请号：KR1020000042649
申请日：2000-07-25
申请人： 도요타지도샤가부시키가이샤
发明人： 야마자키다이치 , 스기야마마사노리 , 구라타나오키
IPC分类号： F02M39/00
CPC分类号： F04B9/042 , F02M59/102 , F02M63/0225
摘要： A cam (25) 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 (&thetas;1) for the ejection stroke is greater than the cam angle (&thetas;2) 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（25）具有对于吸入行程和排出行程而言不对称的凸轮轮廓。凸轮轮廓被设定为使得用于吸入冲程的凸轮角度（θ1）大于用于吸入冲程的凸轮角度（θ2）。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变得比吸入行程的持续时间更长。也就是说，在喷射行程期间加压室容量的变化速度比在吸入行程期间变小。＆lt;图像＆GT;

3. 发明公开

KR1020010021136A 연료 펌프 제어 장치 失效
标题翻译：燃油泵控制装置
公开(公告)号：KR1020010021136A
公开(公告)日：2001-03-15
申请号：KR1020000043288
申请日：2000-07-27
申请人： 도요타지도샤가부시키가이샤
发明人： 스기야마마사노리 , 야마자키다이치 , 구라타나오키
IPC分类号： F02M51/00 , F02D41/14
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： PURPOSE: To provide a fuel pump control device which can reduce the continuous operation sound generated at every closing time of a spill valve. CONSTITUTION: At idle operation time, the number of fuel injection per one time fuel press-feeding from a high pressure fuel pump 47 is reduced or increased. In its reduction case, the closing start timing of an electro-magnetic spill valve 54 can be delayed as one time fuel press-feeding amount may be less. Thereby, the lift amount (cam speed) of a plunger 48b at the 1deg. rotation time of the cam 22a at the valve closing time is minified and the energizing force acting to the same valve closing direction by the fuel is minified. In its increase time, as one time fuel press-feeding amount is increased, the sound at the valve closing time is enlarged by the quickening of the valve closing start timing of the electro-magnetic spill valve 54, but the number itself of the valve closing operation in a prescribed term is reduced and the generation number of the valve closing sound is reduced.
摘要翻译：目的：提供一种燃油泵控制装置，可以减少溢油阀每次关闭时产生的连续运行声音。构成：在怠速运转时，每次从高压燃料泵47进行燃料加压的燃料喷射次数减少或增加。在其减速情况下，电磁溢出阀54的关闭开始正时可以延迟，因为一次燃料加压量可能较小。由此，柱塞48b的升程量（凸轮转速）为1度。凸轮22a在关闭时间的旋转时间变短，并且通过燃料作用于相同的阀关闭方向的通电力变小。在其增加时间中，随着一次燃料加压量增加，通过加快电磁溢出阀54的关闭开始正时，阀关闭时的声音增大，但阀的数量本身缩短规定期间的关闭动作，并且减少闭门声的产生次数。

4. 发明公开

KR1020010050389A 내연 기관의 연료 공급 장치 및 방법 失效
标题翻译：燃油发动机用于内燃机
公开(公告)号：KR1020010050389A
公开(公告)日：2001-06-15
申请号：KR1020000053327
申请日：2000-09-08
申请人： 도요타지도샤가부시키가이샤
发明人： 야마자키다이치 , 구라타나오키 , 스기야마마사노리
IPC分类号： F02M37/00
CPC分类号： F02M59/102 , F02B2075/125 , F02B2275/18 , F02D41/3845 , F02M59/366 , F02M63/0225 , Y02T10/123
摘要： PURPOSE: To provide a fuel feeder for an internal combustion engine capable of appropriately adjusting a fuel forced feed quantity in accordance with modifications of valve closing initiation timing of a spill valve and improving controllability of this fuel forced feed quantity. CONSTITUTION: In a high pressure fuel pump 47 of this fuel feeder, a moving amount (cam velocity) of a plunger 48 during a unit angle rotation of a cam 22a changes in accordance with phase of the cam 22a. A fuel forced feed quantity of the high pressure fuel pump 47 is controlled by modifying valve closing initiation timing of a solenoid spill valve 54, but it is significantly affected by the cam velocity of this valve closing initiation timing. Therefore, for example, a cam profile of the cam 22a is set so that valve closing initiation timing of the solenoid spill valve 54 capable of obtaining a maximum value of a fuel forced feed quantity needed for fuel injection is positioned within a predetermined cam angle range wherein changes of cam velocity due to changes of cam phase are constant. And modifications of the valve closing initiation timing of the solenoid spill valve 54 for adjusting the fuel forced feed quantity are performed within the predetermined cam angle range.
摘要翻译：目的：提供一种内燃机的燃料供给装置，其能够根据溢流阀的闭阀启动正时的变化来适当调整燃料强制进给量，并提高该燃料强制进给量的可控性。构成：在该燃料供给器的高压燃料泵47中，凸轮22a的单位角旋转期间柱塞48的移动量（凸轮速度）根据凸轮22a的相位而变化。高压燃料泵47的燃料强制进给量通过改变螺线管溢流阀54的闭阀启动定时来控制，但是受到该关闭启动定时的凸轮速度的显着影响。因此，例如，设置凸轮22a的凸轮轮廓，使得能够获得燃料喷射所需的燃料强制进给量的最大值的螺线管溢流阀54的关闭启动定时位于预定的凸轮角度范围内凸轮相位变化引起的凸轮速度的变化是恒定的。并且在预定的凸轮角度范围内执行用于调节燃料强制进给量的螺线管溢流阀54的关闭启动时刻的修改。

5. 发明授权

KR100372472B1 연료 펌프 제어 장치 失效
标题翻译： 연료펌프제어장치
公开(公告)号：KR100372472B1
公开(公告)日：2003-02-17
申请号：KR1020000043288
申请日：2000-07-27
申请人： 도요타지도샤가부시키가이샤
发明人： 스기야마마사노리 , 야마자키다이치 , 구라타나오키
IPC分类号： F02M51/00 , F02D41/14
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 (47) 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 (54) can be delayed. Therefore, the lift of a plunger (48b) for 1 DEG rotation of a cam (22a) (i.e., cam speed) at the time of closure of the electromagnetic spill valve (54) decreases, so that the force applied from fuel to the electromagnetic spill valve (54) 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 (54) increase because the timing of starting to close the spill valve (54) 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 (54) during a predetermined period decreases, so that the number of occurrences of the valve closure noises decreases.
摘要翻译：在怠速状态期间，每次执行从高压燃料泵（47）输送燃料时喷射燃料的次数减少或增加。如果每次执行燃料输送的喷射次数减少，则通过一次执行燃料输送而需要输送的燃料量减少，从而开始关闭电磁溢流阀（54 ）可以推迟。因此，在关闭电磁溢流阀（54）时凸轮（22a）旋转1°的柱塞（48b）的升程（即凸轮速度）减小，使得从燃料施加到电磁溢流阀（54）在关闭方向上减小。如果每次执行燃料输送时喷射燃料的次数增加，则在关闭电磁溢流阀（54）时产生的噪音增加，因为开始关闭溢流阀（54）的时间提前至通过执行一次燃料输送来增加输送的燃料量。然而，在预定时段期间关闭电磁溢流阀（54）的次数减少，使得阀关闭噪声的出现次数减少。＆lt;图像＆GT;

6. 发明授权

KR100367189B1 내연 기관의 연료 공급 장치 및 방법 失效
标题翻译：空值
公开(公告)号：KR100367189B1
公开(公告)日：2003-01-09
申请号：KR1020000053327
申请日：2000-09-08
申请人： 도요타지도샤가부시키가이샤
发明人： 야마자키다이치 , 구라타나오키 , 스기야마마사노리
IPC分类号： F02M37/00
CPC分类号： F02M59/102 , F02B2075/125 , F02B2275/18 , F02D41/3845 , F02M59/366 , F02M63/0225 , Y02T10/123
摘要： 연료 공급 장치의 고압 연료 펌프(47)에 있어서, 캠(22a)이 단위 각도 회전할 때의 플런저(48b)의 이동량(캠 속도)은 캠(22a)의 위상에 따라서 변화한다. 고압 연료 펌프(47)의 연료 압송량은 전자 스필 밸브(54)의 폐쇄 밸브 개시 시기를 변경함으로써 제어되지만, 동일 폐쇄 밸브 개시 시의 캠 속도에 의해 크게 영향받게 된다. 그 때문에, 연료 분사에 필요량으로 되는 연료 압송량의 최대치가 얻어지는 전자 스필 밸브(54)의 폐쇄 밸브 개시 시기가 캠 위상 변화에 의한 캠 속도 변화가 일정해지는 소정 캠 각도 범위 내에 위치하도록, 예를 들면 캠(22a)의 캠 프로필이 설정된다. 그리고, 연료 압송량을 조정하기 위한 전자 스필 밸브(54)의 폐쇄 밸브 개시 시기 변경은 상기 소정 캠 각도 범위 내에서 행해진다.
摘要翻译：在燃料供给装置的高压燃料泵（47）中，在凸轮（22a）的单位角旋转期间发生的柱塞（48b）（凸轮转速）的移动量根据凸轮（22a）。通过改变电磁溢流阀（54）的关闭的开始时间来控制从高压燃料泵（47）输送的燃料量。然而，所输送的燃料量受溢流阀（54）开始封闭时的凸轮转速的很大影响。因此，例如，设置凸轮（22a）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（54）的闭合开始正时被放置在预定的凸轮转速相对于凸轮（22a）的相位变化恒定的凸轮角度范围。因此，在规定的凸轮角度范围内进行电磁溢流阀54的关闭开始时刻的改变，以调整输出的燃料量。

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