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1. 发明专利

JP2017082715A 外接歯車式の燃料ポンプ有权
公开(公告)号：JP2017082715A
公开(公告)日：2017-05-18
申请号：JP2015213416
申请日：2015-10-29
申请人：株式会社日本自動車部品総合研究所 , Nippon Soken Inc , 株式会社デンソー , Denso Corp
发明人： ARIKAWA FUMIAKI , KATSURA RYO
IPC分类号： F04C2/18 , F02M37/08 , F02M59/12 , F04C15/00
CPC分类号： F02M37/08 , F02M59/12 , F04C2/18 , F04C15/00
摘要：【課題】 DME燃料を潤滑油として使用する場合であっても、潤滑性の確保とポンプ効率の低下抑制との両立を図ることのできる低圧燃料ポンプを提供することにある。【解決手段】低圧燃料ポンプは、一対のギヤの各ギヤ側面と一対のサイドプレート11、12の各プレート接触面51、52とが一周に渡り、接触することがないように、複数の油溝61、62が径方向に延びるように設けられている。さらに、DME燃料が全面に行き渡るように複数の油溝61、62と交差して複数の油溝61、62を周方向に連結する油溝63、64が周方向に延びるように設けられている。これによって、軸受孔46、47を介して、複数の油溝61〜64によって吐出側空間45と吸入側空間44とが連通しているので、DME燃料を潤滑油として使用する場合であっても、接触部における潤滑性を高めるとともに、ポンプ効率の低下を抑えることができる。【選択図】図3

2. 发明专利

JP2009270501A Fuel pump 有权
标题翻译：燃油泵
公开(公告)号：JP2009270501A
公开(公告)日：2009-11-19
申请号：JP2008122238
申请日：2008-05-08
申请人： Denso Corp , 株式会社デンソー
发明人： KATSURA RYO
IPC分类号： F02M59/10 , F02D41/38 , F02M59/26 , F02M59/46 , F04B9/04
CPC分类号： F02M59/06 , F01L1/3442 , F02M59/102 , F02M59/105 , F02M59/44 , F02M63/0265
摘要： PROBLEM TO BE SOLVED: To solve the problem of being difficult to extremely reduce energy consumption, when forcibly feeding fuel to a pressure accumulating pipe 20. SOLUTION: This fuel pump 10 has a pair of plungers 62a and 62b, and pressure chambers 63a and 63b are partitioned by these plungers and a cylinder. The fuel flows backward from the pressure accumulating pipe 20 via back-flow passages 68a and 68b to the side corresponding to a suction stroke among the pressure chambers 63a and 63b. Thus, force in the displacement direction on the side corresponding to the suction stroke among the plungers 62a and 62b, is impressed on the side corresponding to a delivery stroke. In this case, among the force required for the plunger corresponding to the deliver stroke, a shortage quantity is taken out of a crankshaft 54 of a diesel engine 50. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：解决方案：解决方案：将燃料强制供给到蓄压管20时，解决难以极度降低能量消耗的问题。该燃料泵10具有一对柱塞62a，62b，并且压力室63a和63b被这些柱塞和气缸隔开。燃料从蓄压管20经由回流通路68a，68b向后方流向压力室63a，63b的吸入冲程。因此，在与排出冲程相对应的一侧，在与活塞62a，62b的吸入行程对应的一侧的位移方向的力被施加。在这种情况下，在对应于输送冲程的柱塞所需的力中，从柴油发动机50的曲轴54取出不足量。（C）2010，JPO＆INPIT

3. 发明专利

JP2004019602A Fuel injection system 有权
公开(公告)号：JP2004019602A
公开(公告)日：2004-01-22
申请号：JP2002178007
申请日：2002-06-19
申请人： Denso Corp , 株式会社デンソー
发明人： KATSURA RYO , HORIUCHI YASUHIRO
IPC分类号： F02D45/00 , F02D41/20 , F02D41/24 , F02D41/40 , F02M45/08
CPC分类号： F02D41/2416 , F02D41/2096 , F02D2200/0602 , F02D2200/0604 , F02D2200/0625 , F02M45/086 , F02M2200/46
摘要： PROBLEM TO BE SOLVED: To improve the correction accuracy in a vicinity of an inflection point by clarifying a position of the inflection point of the injection characteristic when performing the logic correction of dispersion of individual injectors.
SOLUTION: An ECU obtains a reference Tq from a reference map with measurement data of the reference injection characteristics for the injection quantity Qt required at the pressure P1 closely recorded after reading coefficients of each approximation stored in a memory of an injector, and further obtains the reference injection quantity Qk by substituting the reference Tq in the reference approximation. Next, an approximation of the injector at the pressure P1 is calculated, and the calculated approximate value is compared with a value calculated by substituting the reference injection quantity Qk in the term y of an inverse function obtained from this approximation. The larger value TqB is set to be an instructed injection pulse period. The position of the inflection point can be calculated with high accuracy by this method, and the correction accuracy in a vicinity of the inflection point is improved compared with a conventional method to perform interpolation from rough measurement data recorded on the map when obtaining the instructed injection pulse period to the required injection quantity.
COPYRIGHT: (C)2004,JPO

4. 发明专利

JP2014163260A Fuel injection control device 有权
标题翻译：燃油喷射控制装置
公开(公告)号：JP2014163260A
公开(公告)日：2014-09-08
申请号：JP2013033472
申请日：2013-02-22
申请人： Denso Corp , 株式会社デンソー
发明人： NISHIMURA MITSUHIRO , KATSURA RYO
IPC分类号： F02D41/04 , F02D41/40
CPC分类号： Y02T10/44
摘要： PROBLEM TO BE SOLVED: To provide a fuel injection control device capable of accurately calculating an actual injection amount on the basis of a pressure drop amount when a target injection amount is equal to or less than a prescribed amount.SOLUTION: An electronic control device acquires (S402) a common rail pressure before injection (Pbefore) at a prescribed crank angle before fuel injection (S400), and stores (S406) a common rail pressure (Ptemp) acquired by sampling when standby time which is a total of pulse width time of an injection command signal and injection end delay time has elapsed. When Ptemp acquired this time is larger than a maximum pressure PAmax up to the previous one (S408: Yes), Ptemp is set as PAmax (S410). When elapsed time (Tnow) after starting of sampling reaches a prescribed time (TfCA) (S412: Yes), a common rail pressure after injection (Pafter) is calculated (S414), and a pressure drop amount ΔP is calculated from Pbefore and Pafter, and an actual injection amount Qr is calculated based on ΔP (S416).
摘要翻译：要解决的问题：提供一种能够在目标喷射量等于或小于规定量时基于压降量精确地计算实际喷射量的燃料喷射控制装置。解决方案：电子控制装置获取（S402）在燃料喷射前的规定的曲柄角度的喷射前的共轨压力（Pbefore）（S400），并且存储（S406）当作为脉冲宽度时间的总和的待机时间时采集的共轨压力（Ptemp）的喷射命令信号和喷射结束延迟时间已经过去。当Ptemp获得时间大于上一次的最大压力PAmax（S408：是）时，将Ptemp设置为PAmax（S410）。当采样开始后的经过时间（Tnow）达到规定时间（TfCA）（S412：是）时，计算注射后的共轨压力（Pafter）（S414），并从Pbefore计算压降量＆Dgr; P 和Pafter，并且基于＆Dgr; P（S416）计算实际喷射量Qr。

5. 发明专利

JP2014148952A Fuel injection device 有权
标题翻译：燃油喷射装置
公开(公告)号：JP2014148952A
公开(公告)日：2014-08-21
申请号：JP2013018901
申请日：2013-02-01
申请人： Denso Corp , 株式会社デンソー
发明人： KATSURA RYO
IPC分类号： F02D41/40 , F02D41/22 , F02D45/00 , F02M51/00
CPC分类号： F02D41/3809 , F02D41/0085 , F02D41/2467 , F02D41/247 , F02D2200/0602 , F02D2200/0616
摘要： PROBLEM TO BE SOLVED: To execute individual difference correction of an injector by using a pressure sensor disposed on a common rail even when individual difference correction of the injector 3 by QR code (registered trade mark) cannot be executed.SOLUTION: A control device 4 determines an actual injection amount Q from a pressure reduction amount ΔP in injection, determines an individual difference index %Q by an inclination of "ratio of variation amounts" of a plurality of actual injection amounts Q and a target injection amount Qtrg, and executes individual difference correction of an injector 3 while applying the individual difference index %Q as a learning value. By applying the individual difference index %Q by the inclination of the "ratio of variation amounts, the individual difference correction of the injector 3 can be executed while eliminating the variation between shots. As an individual difference pointer %Q obtained under a certain condition, can be universally used as the same value even when the target injection amount Qtrg and a target pressure of a common rail 1 are changed, machine difference correction of the injector 3 can be executed in the whole operation region only by obtaining the individual difference pointer %Q by a minimum learning of one time in a factory and the like.
摘要翻译：要解决的问题：即使通过使用设在公共轨道上的压力传感器来执行喷射器的各个差异校正，即使不能执行通过QR码（注册商标）的喷射器3的各自的差异校正。解决方案：控制装置4 从注射中的减压量＆Dgr; P确定实际喷射量Q，通过多个实际喷射量Q和目标喷射量Qtrg的“变化量的比率”的倾斜度来确定个体差异指数％Q，以及执行喷射器3的各个差异校正，同时将各个差异指数％Q作为学习值。通过以“变化比率”的倾斜度施加个体差分指数％Q，可以在消除拍摄之间的变化的同时进行喷射器3的个体差异校正，作为在一定条件下获得的个体差分指针％Q，即使当目标喷射量Qtrg和共轨1的目标压力改变时，也可以普遍使用相同的值，只有通过获得个体差分指针％，可以在整个操作区域中执行喷射器3的机械差异校正 Q在工厂里一次最少的学习等等。

6. 发明专利

JP2014005798A Fuel injection control device 有权
标题翻译：燃油喷射控制装置
公开(公告)号：JP2014005798A
公开(公告)日：2014-01-16
申请号：JP2012143045
申请日：2012-06-26
申请人： Denso Corp , 株式会社デンソー
发明人： KATSURA RYO
IPC分类号： F02M59/20
CPC分类号： F02D41/3082 , F02D41/3854 , F02D41/406 , F02D2200/0602 , F02M59/366 , F02M63/0225 , Y02T10/44
摘要： PROBLEM TO BE SOLVED: To provide a fuel injection control device capable of adjusting a pressure feed amount of a high pressure pump to a target pressure feed amount with high accuracy, and a fuel injection system using the same.SOLUTION: The fuel injection control device samples driving current of a feed pump at a prescribed time interval, executing AD conversion of the same, and subjects the same to a band-pass filter (S400, S402), determines a rising start angle TG when the driving current falls within a prescribed range to start rising after passing through the filter (S404), and determines a rising end angle TR when the driving current falls within a prescribed range to terminate the rising (S406). An estimated pressure feed amount of the high pressure pump is determined on the basis of the rising start angle TG and the rising end angle TR (S408), an adjustment valve is controlled on the basis of a common rail pressure (S412), when a rail pressure sensor is normal (S410:Yes), and the adjustment valve is controlled on the basis of the estimated pressure feed amount (S414), when the rail pressure sensor is abnormal (S410:No).
摘要翻译：要解决的问题：提供一种能够高精度地将高压泵的加压量调节到目标加压量的燃料喷射控制装置，以及使用该燃料喷射控制装置的燃料喷射系统。以规定的时间间隔驱动供给泵的电流，对其进行AD转换，并将其同时传送到带通滤波器（S400，S402），确定当驱动电流落在规定的范围内时的上升起始角度TG 通过滤波器后开始上升的范围（S404），并且当驱动电流落在规定范围内以确定上升端角度TR以终止上升（S406）。基于上升起始角度TG和上升端角度TR来确定高压泵的估计的压力进给量（S408），基于共轨压力来控制调节阀（S412），当轨道压力传感器正常（S410：是），当轨道压力传感器异常时，基于估计的压力进给量（S414）来控制调节阀（S410：否）。

7. 发明专利

JP2011144711A Fuel injection device 审中-公开
标题翻译：燃油喷射装置
公开(公告)号：JP2011144711A
公开(公告)日：2011-07-28
申请号：JP2010004203
申请日：2010-01-12
申请人： Denso Corp , 株式会社デンソー
发明人： MIKAMI NAOMI , KATSURA RYO
IPC分类号： F02M59/20 , F02D41/04 , F02D41/08 , F02D41/22 , F02D45/00 , F02M37/00 , F02M59/36 , F02M59/46
CPC分类号： Y02T10/123
摘要： PROBLEM TO BE SOLVED: To accurately control the injection amount from a high pressure pump or the like in a common rail type fuel injection device. SOLUTION: When the pressure of a common rail 20 is at a learning target pressure Pe, the energization amount to a flow rate regulating valve 18 and the fuel supply amount actually ejected from the flow regulating valve 18 are sensed for sensing and learning the relationship between the energization amount and the supply amount at the learning target pressure Pe. Thereby, the amount of fuel ejected from a high pressure pump 16 and to be supplied to the common rail 20 is controlled accurately. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了在共轨式燃料喷射装置中精确地控制来自高压泵等的喷射量。解决方案：当共轨20的压力处于学习目标压力Pe时，感测到流量调节阀18的通电量和从流量调节阀18实际喷射的燃料供应量用于感测和学习通电量与学习目标压力Pe之间的供给量的关系。由此，精确地控制从高压泵16喷出并供给到共轨20的燃料量。版权所有（C）2011，JPO＆INPIT

8. 发明专利

JP2009270520A Fuel pressure controller and fuel pressure control system 有权
标题翻译：燃油压力控制器和燃油压力控制系统
公开(公告)号：JP2009270520A
公开(公告)日：2009-11-19
申请号：JP2008122978
申请日：2008-05-09
申请人： Denso Corp , 株式会社デンソー
发明人： KATSURA RYO
IPC分类号： F02M59/36 , F02D41/22 , F02D45/00 , F02M51/00 , F02M59/34 , F02M59/46
CPC分类号： F02D41/3836 , F02D41/221 , F02D2041/224 , F02M59/34 , F02M59/366 , F02M59/462 , F02M59/466
摘要： PROBLEM TO BE SOLVED: To solve the problem of being difficult to further quickly detect abnormality of a flow control valve for adjusting a fuel flow rate by displacing a spool by magnetic force generated by a solenoid and elastic force of a spring. SOLUTION: An ECU 30 estimates a variation amount of fuel which is actually sucked in by a fuel pump 14 based on fuel pressure in a common rail 16. Even though the fuel pressure in the common rail 16 deviates from target fuel pressure, when the estimated variation amount is substantially zero, the abnormality is detected, and a current-carrying quantity to the solenoid is compulsorily reduced. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：解决难以进一步快速检测用于通过由螺线管产生的磁力和弹簧的弹力而使阀芯移位来调节燃料流量的流量控制阀的异常的问题。解决方案：ECU30基于共轨16中的燃料压力估计燃料泵14实际吸入的燃料的变化量。即使共轨16中的燃料压力偏离目标燃料压力，当估计变化量基本上为零时，检测到异常，强制降低对螺线管的通电量。版权所有（C）2010，JPO＆INPIT

9. 发明专利

JP2007211653A Fuel injection device for internal combustion engine 有权
标题翻译：用于内燃机的燃油喷射装置
公开(公告)号：JP2007211653A
公开(公告)日：2007-08-23
申请号：JP2006031255
申请日：2006-02-08
申请人： Denso Corp , 株式会社デンソー
发明人： KATSURA RYO
IPC分类号： F02M59/34 , F02D41/04 , F02M47/02 , F02M55/00
CPC分类号： F02M59/366 , F02M59/34
摘要： PROBLEM TO BE SOLVED: To shorten a depressurizing time by decreasing the occurrence of the event (reverse response) that a fuel pressure in an accumulator is increased when a target pressure in the accumulator is changed from a high pressure to a low pressure. SOLUTION: This fuel injection device for an internal combustion engine comprises a high-pressure pump 10 sucking a fuel into a pump chamber 13 during a suction stroke and pressurizing the fuel in the pump chamber 13 and force-feeding it into the accumulator 1 during a force-feed stroke. The fuel injection device further comprises return fuel passages 8, 40 for returning the fuel in the pump chamber 13 pressurized in the force-feed stroke of the high-pressure pump 10 to a low-pressure part 5. Even if the fuel is sucked into the pump chamber 13 by opening the return fuel passages 8, 40 when the fuel pressure in the accumulator 1 is lowered, the fuel is is returned to the low-pressure part through the return fuel passages 8, 40 during the force-feed stroke. Namely, the fuel is not force-fed to the accumulator 1 to prevent the reverse response. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：通过减少当蓄能器中的目标压力从高压变为低压时蓄能器中的燃料压力增加的事件的发生（反向响应）来缩短减压时间。解决方案：用于内燃机的该燃料喷射装置包括高压泵10，其在吸入冲程期间将燃料吸入泵室13，并对泵室13中的燃料加压并将其加压到蓄能器 1在加力冲程期间。燃料喷射装置还包括用于将在高压泵10的加力行程中加压的泵室13中的燃料返回到低压部分5的返回燃料通道8,40。即使燃料被吸入泵室13通过在蓄能器1中的燃料压力降低时打开返回燃料通道8,40，在加力行程期间，燃料通过返回燃料通道8,40返回到低压部分。也就是说，燃料不被强制供给到蓄能器1以防止反向响应。版权所有（C）2007，JPO＆INPIT

10. 发明专利

JP2008190519A Fuel injection control system and fuel injection valve 有权
标题翻译：燃油喷射控制系统和燃油喷射阀
公开(公告)号：JP2008190519A
公开(公告)日：2008-08-21
申请号：JP2007259361
申请日：2007-10-03
申请人： Denso Corp , 株式会社デンソー
发明人： KATSURA RYO , TAKEUCHI KATSUHIKO
IPC分类号： F02M55/02 , F02M47/00 , F02M51/06 , F02M59/08 , F02M59/20
摘要： PROBLEM TO BE SOLVED: To provide a control system equipped with pressure accumulating piping for accumulating fuel in a high pressure state, a fuel pump for pressure feeding the fuel to the pressure accumulating piping, and a fuel injection valve for injecting fuel accumulated in the pressure accumulating piping in a high pressure state capable of appropriately performing fuel injection control. SOLUTION: The fuel injection valve 30 is capable of expanding the lift amount of a nozzle needle by pressure of supplied fuel (fuel pressure) exceeding a threshold value. Fuel pressure inside the pressure accumulating piping 20 is controlled during a fuel injection period so that the pressure of fuel supplied to the fuel injection valve 30 rises to exceed the threshold value. Further, after fuel injection, the fuel inside the pressure accumulating piping 20 is returned to the fuel pump 10 via back flow passages 68a and 68b to thereby recover a portion of energy used for pressure feeding. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种配备有用于在高压状态下积聚燃料的蓄压管道的控制系统，用于将燃料压力供给到蓄压管道的燃料泵，以及用于喷射累积燃料的燃料喷射阀在能够适当地进行燃料喷射控制的高压状态下的蓄压管路。解决方案：燃料喷射阀30能够通过超过阈值的供给燃料（燃料压力）的压力来扩大喷嘴针的提升量。在燃料喷射期间控制蓄压管路20内的燃料压力，使得供给到燃料喷射阀30的燃料的压力上升到超过阈值。此外，在燃料喷射之后，蓄压管路20内的燃料经由回流通道68a和68b返回到燃料泵10，从而回收用于压力供给的一部分能量。版权所有（C）2008，JPO＆INPIT

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