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    • 1. 发明专利
    • Intake-air volume control device of internal combustion engine
    • 内燃机的空气体积控制装置
    • JP2006152984A
    • 2006-06-15
    • JP2004348519
    • 2004-12-01
    • Nippon Soken IncToyota Motor Corpトヨタ自動車株式会社株式会社日本自動車部品総合研究所
    • SUZUKI KENRYOYAMADA JUNHEIKO KEIZOKATO JUICHIHOSODA FUMINORI
    • F02D13/02F01L13/00F02D9/02F02D41/04F02D43/00F02D45/00
    • PROBLEM TO BE SOLVED: To provide a process different from a conventional process in a control to suppress the deviations of intake air amounts between cylinders by handling the variations of valve lift amounts and valve timing angles of an intake valve. SOLUTION: For the variations of intake air between cylinders Sd more than a reference value Krg ("YES" in S154), an average intake flow speed at the intake valve is made to be less than 0.85 times the sound speed by setting a valve lift amount VLAx for use in reducing average intake flow speed that is larger than usually set valve lift amount at a target valve lift amount (S156). Thereby, the compensation of the variations of intake air amounts is designed to be made to a certain degree by making shorter the period during which changes in average flow speeds are restricted by the sound speed. Thus, the variations of intake air amounts between cylinders are suppressed, and the selection of the control can be extended. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:通过处理进气门的气门升程量和气门正时角度的变化,提供与控制中的常规方法不同的方法,以抑制气缸之间的进气量的偏差。

      解决方案:对于气缸Sd之间的进气的变化比参考值Krg(S154中的“是”),进气门的平均进气流量通过设定小于声速的0.85倍 用于减小通常设定目标气门升程量时的气门升程量的平均进气流量的阀升程量VLAx(S156)。 因此,通过使平均流速的变化受到声速的限制的期间缩短,能够使进气量的变化的补偿在一定程度上进行。 因此,气缸之间的进气量的变化被抑制,并且可以扩大控制的选择。 版权所有(C)2006,JPO&NCIPI

    • 2. 发明专利
    • Variable valve train
    • 可变阀门火车
    • JP2010121592A
    • 2010-06-03
    • JP2008298140
    • 2008-11-21
    • Nippon Soken IncToyota Motor Corpトヨタ自動車株式会社株式会社日本自動車部品総合研究所
    • YAMADA JUNYAOSACHI SEIJIFUJIMURA HARUHITOHOSODA FUMINORI
    • F01L13/00
    • PROBLEM TO BE SOLVED: To provide a variable valve train achieving high production efficiency by allowing final adjustment of the valve lift property of an intake valve to be performed during assembling structural elements.
      SOLUTION: The variable valve train 18 includes an input arm 31, output arms 32, a slider 33, and a control shaft 37 to be driven by an actuator connected to the slider 33 via an engaging means. The engaging means includes an engaging pin 34 provided on the control shaft 37, a bush 35 stored in an annular groove 33m of the slider 33 for engaging with the engaging pin 34, and a spring 36 mounted between the side face of the bush 35 and the inner wall of the slider encircling the annular groove 33m for thrusting the slider 33 to be isolated from the actuator. The slider 33 is configured to turn around the control shaft 37 with the turning center on the axis of the control shaft 37 and with the bush 35 serving as a guide.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:通过允许在组装结构元件期间进行的进气门的气门升程性能的最终调节来提供实现高生产效率的可变气门机构。 解决方案:可变气门机构18包括输入臂31,输出臂32,滑块33和控制轴37,以由通过接合装置连接到滑块33的致动器驱动。 接合装置包括设置在控制轴37上的接合销34,储存在滑动件33的与接合销34接合的环形槽33m中的衬套35以及安装在衬套35的侧面和 滑动器的内壁环绕环形槽33m,用于推动滑块33与致动器隔离。 滑块33构造成在控制轴37的轴线上具有转动中心并且衬套35用作引导件而转动控制轴37。 版权所有(C)2010,JPO&INPIT
    • 3. 发明专利
    • Variable valve train adjusting method and variable valve train
    • 可变阀门火车调节方法和可变阀门火车
    • JP2009275590A
    • 2009-11-26
    • JP2008127416
    • 2008-05-14
    • Toyota Motor Corpトヨタ自動車株式会社
    • HOSODA FUMINORIYOSHIHARA YUJIYOKOYAMA TOMOYUASA TAKAO
    • F01L13/00F01L1/34
    • PROBLEM TO BE SOLVED: To provide a variable valve train adjusting method capable of suppressing errors in a valve operating angle and performing highly accurate valve control by sufficiently filling a clearance from a control shaft to an arm, and a variable valve train used in the adjusting method.
      SOLUTION: In a preliminary driving process, a relative axial force toward the opposite side of axial reference faces 58a, 64a, 66a, 68a is applied to a slider gear 76 by a wedge 86 to rotate a camshaft, so that as valve lift is repeated, a clearance from the control shaft 28 to the slider gear 76 is naturally filled in a short time. In a measurement driving process, as the relative axial force by the wedge 86 is released, a highly accurate valve operating angle or a maximum valve lift amount can be measured in a state that all clearances are completely filled. In an interval determining process, as a shim thickness is determined based on the measurement value, errors in the valve operating angle for each cylinder or in the valve operating angles among cylinders are suppressed to enable the adjustment of the variable valve train allowing highly accurate valve control.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种能够抑制阀操作角度错误并通过充分填充从控制轴到臂的间隙以及使用可变气门机构来执行高精度阀控制的可变气门机构调节方法 在调整方法中。 解决方案:在初步驱动过程中,朝向轴向基准面58a,64a,66a,68a的相反侧的相对轴向力通过楔形件86施加到滑块齿轮76,以使凸轮轴旋转,使得当作为阀 电梯重复,从控制轴28到滑块齿轮76的间隙自然地在短时间内填满。 在测量驱动过程中,当释放楔86的相对轴向力时,可以在所有间隙完全填充的状态下测量高精度的阀操作角度或最大气门升程量。 在间隔确定过程中,由于基于测量值确定垫片厚度,因此抑制了气缸中的每个气缸的气门操作角度或气缸中的气门操作角度的误差,从而能够调整可变气门机构,从而允许高度精确的阀 控制。 版权所有(C)2010,JPO&INPIT
    • 4. 发明专利
    • Control device of variable valve train
    • 可变阀门控制装置
    • JP2009250067A
    • 2009-10-29
    • JP2008096190
    • 2008-04-02
    • Toyota Motor Corpトヨタ自動車株式会社
    • HOSODA FUMINORI
    • F02D13/02F01L1/22F01L1/34F01L13/00F02D45/00
    • Y02T10/18
    • PROBLEM TO BE SOLVED: To provide a control device of variable valve train that can suitably resolve the poor closing of an exhaust valve due to a back-pressure of an internal combustion engine. SOLUTION: An electronic control unit 22 checks for a poor closing of an exhaust valve 17 from catalyst floor temperature of catalyst device 21 for exhaust emission purification. In addition, the electronic control unit 22, when the occurrence of the poor closing is observed, reduces the back-pressure of the internal combustion engine by controlling a variable valve mechanism 20 which makes valve timing of the exhaust valve 17 variable so as to retard the valve timing of the exhaust valve 17, thereby achieving to resolve the poor closing of the exhaust valve 17 due to a high back-pressure. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种能够适当地解决由于内燃机的背压引起的排气阀闭合不良的可变气门机构的控制装置。 解决方案:电子控制单元22检查用于排气净化的催化剂装置21的催化剂底板温度对排气阀17的闭合不良。 此外,电子控制单元22在观察到闭合不良的情况下,通过控制使排气门17的气门正时变化的可变气门机构20来减小内燃机的背压,以延迟 排气阀17的气门正时,从而实现了由于高背压导致的排气门17的不良关闭。 版权所有(C)2010,JPO&INPIT
    • 5. 发明专利
    • Valve gear for internal combustion engine
    • 内燃机用阀门
    • JP2006316762A
    • 2006-11-24
    • JP2005142589
    • 2005-05-16
    • Toyota Motor Corpトヨタ自動車株式会社
    • YOSHIHARA YUJIKOSHIMIZU TAKAHIDEHOSODA FUMINORIMIYASATO YOSHIAKIYUASA TAKAO
    • F02D13/02F01L1/24F01L13/00F02D35/00F02D45/00
    • Y02T10/18
    • PROBLEM TO BE SOLVED: To provide a valve gear for an internal combustion engine capable of securing engine output even when abnormality that an advancing amount of a plunger is excessively small occurs. SOLUTION: This device is applied to the internal combustion engine equipped with a valve train 60 having a lash adjuster 80, and a lift amount variable mechanism 46 drive-controlled based on the engine operation state and varying a lift amount of an intake valve 30. The lash adjuster 80 adjusts a valve clearance of the intake valve 30 through advancing of the plunger 92 from a body 82. When the abnormality that the advancing amount of the plunger 92 is smaller than a lower limit value of an operation range in the normal operation time occurs, the lift amount variable mechanism 46 is drive-controlled in a mode different from the normal operation time of the plunger 92, and the lift amount of the intake valve 30 is forcibly increased. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:即使在柱塞的进给量过小的异常情况下,也能够提供能够确保发动机输出的内燃机的气门齿轮。 解决方案:该装置应用于配备有具有间隙调节器80的气门机构60的内燃机和基于发动机运转状态而驱动控制的升程量可变机构46,并且改变进气口的升程量 间隙调节器80通过柱塞92从主体82的前进来调节进气门30的阀间隙。当柱塞92的前进量小于操作范围的下限值的异常时 发生正常运行时间,提升量可变机构46以与柱塞92的正常操作时间不同的模式被驱动控制,并且进气门30的提升量被强制增加。 版权所有(C)2007,JPO&INPIT
    • 7. 发明专利
    • Variable valve train for internal combustion engine
    • 用于内燃机的可变阀门火车
    • JP2006118404A
    • 2006-05-11
    • JP2004305844
    • 2004-10-20
    • Otics CorpToyota Motor Corpトヨタ自動車株式会社株式会社オティックス
    • KOSHIMIZU TAKAHIDEYOSHIHARA YUJIHOSODA FUMINORIMIYASATO YOSHIAKISUGIURA KENYAMAGUCHI KOKI
    • F01L13/00F01L1/46
    • PROBLEM TO BE SOLVED: To provide a variable valve train for an internal combustion engine capable of appropriately measuring a valve lift quantity.
      SOLUTION: A lift quantity adjusting mechanism 14 is provided with an input arm 17 swinging pushed by an intake cam 11a, and a swing arm 18 swinging based on the swing of the input arm 17. The swing arm 18 is formed with a base circle part 33 having a circular outer peripheral surface centering on the axis of a support pipe 15, and a nose part 34 projected from the outer peripheral surface of the base circle part 33 and lifting an intake valve 9 when the swing arm 18 swings. The swing arm 18 is formed with a detected part 36 projected from the upper part of the outer peripheral surface of the base circle part 33 and changed in radial width along a circumferential direction. The upper face of the detected part 36 is made a measuring surface 36a used as a measuring object of a gap sensor 35. The gap sensor 35 is provided in a position above the swing arm 18 and facing the measuring surface 36a.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种能够适当地测量气门升程量的内燃机的可变气门机构。 解决方案:提升量调节机构14设置有由进气凸轮11a推动的输入臂17摆动,摆臂18基于输入臂17的摆动而摆动。摆臂18形成有 具有以支撑管15的轴线为中心的圆形外周面的基部圆部33和从基部圆部33的外周面突出的鼻部34,并且当摆臂18摆动时提升进气阀9。 摆臂18形成有从基圆部33的外周面的上部突出的检测部36,并且沿着圆周方向的径向宽度变化。 被检测部分36的上表面被制成用作间隙传感器35的测量对象的测量表面36a。间隙传感器35设置在摆臂18上方并面向测量表面36a的位置。 版权所有(C)2006,JPO&NCIPI
    • 8. 发明专利
    • Variable valve mechanism for internal combustion engine
    • 内燃机可变阀机构
    • JP2006090160A
    • 2006-04-06
    • JP2004274040
    • 2004-09-21
    • Otics CorpToyota Motor Corpトヨタ自動車株式会社株式会社オティックス
    • YOSHIHARA YUJIKOSHIMIZU TAKAHIDEHOSODA FUMINORIMIYASATO YOSHIAKISUGIURA KENYAMAMOTO MASAYUKI
    • F01L13/00F01L1/18
    • PROBLEM TO BE SOLVED: To suppress excessive increase in a maximum lift amount of an intake valve when driving a variable valve mechanism so as to increase the maximum lift amount and the working angle while decreasing a working angle of an intake cam securing an intake air amount required when the intake air amount is small.
      SOLUTION: A lift amount variable mechanism 14 is equipped with an input arm 17 rocked by being pushed by an intake cam 11a and a rocking arm 18 for lifting an intake valve 9 by being rocked on the basis of rocking of the input arm 17. A non-lift section in which the intake valve 9 cannot be lifted is formed in a part near to a supporting pipe 15 in a cam surface 25 of the rocking arm 18. A lift section in which the intake valve 9 can be lifted is formed on a side away from the supporting pipe 15 farther than the non-lift section in the cam surface 25. A R section bent in a direction away from the pipe 15 is formed near to the supporting pipe 15 in the lift section. An inverted R section bent in a direction reverse to the R section is formed on a tip side of the rocking arm 18.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了抑制当驱动可变气门机构时进气门的最大提升量的过度增加,以便在降低进气凸轮的工作角度的同时增加最大提升量和工作角度,从而确保 进气量小时所需的进气量。 解决方案:提升量可变机构14配备有通过由进气凸轮11a和摇臂18推动而摇摆的输入臂17,摇臂18通过基于输入臂的摆动而摇动进气阀9 在摇臂18的凸轮表面25中,在靠近支撑管15的部分形成有不能提升进气阀9的非提升部分。可以提升进气门9的提升部分 形成在远离支撑管15的一侧比在凸轮表面25中的非提升部分更远的一侧。在远离管15的方向弯曲的AR部分形成在提升部分中的支撑管15附近。 在摇臂18的顶端形成有与R部分相反的方向弯曲的倒置R部分。(C)2006年,JPO&NCIPI
    • 9. 发明专利
    • Variable valve system for internal combustion engine
    • 用于内燃机的可变阀系统
    • JP2005090492A
    • 2005-04-07
    • JP2004229447
    • 2004-08-05
    • Toyota Motor Corpトヨタ自動車株式会社
    • YOSHIHARA YUJITATENO MANABUTANI MASAAKIHOSODA FUMINORIKOSHIMIZU TAKAHIDEMIYASATO YOSHIAKI
    • F01M1/06F01L13/00F01M9/10
    • PROBLEM TO BE SOLVED: To provide a variable valve system for an internal combustion engine, suppressing the needless consumption of lubricating oil. SOLUTION: In the variable valve system, the rocking of an input arm 36 with an intake cam shaft 20 is transmitted via a slider 45 to an output arm 42, an intake valve 21 is driven by the output arm 42, and a relative phase difference between the input arm 36 and the output arm 42 is changed and the maximum lift amount of the intake valve 21 is changed by the displacement of the slider 45 interlocked with a control shaft 34. Furthermore, lubricating oil is supplied through a supply passage to the intake valve 21 at its portion driven by the output arm 42. In the construction of the variable valve mechanism, the slider 45 functions as a valve for opening/closing the supply passage, which closes the supply passage in a state in which at least the maximum lift amount is minimized and opens the supply passage in a state in whichi the maximum lift amount is maximized and when the intake valve 21 is most driven. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供一种用于内燃机的可变阀系统,抑制不必要的润滑油的消耗。 解决方案:在可变气门系统中,具有进气凸轮轴20的输入臂36的摆动通过滑块45传递到输出臂42,进气门21由输出臂42驱动, 改变输入臂36和输出臂42之间的相对相位差,并且通过与控制轴34互锁的滑块45的位移来改变进气门21的最大提升量。此外,润滑油通过供给 在由输出臂42驱动的部分处通向进气门21.在可变气门机构的结构中,滑块45用作打开/关闭供应通道的阀,该供应通道关闭供应通道, 至少最大提升量最小化并且在最大提升量最大化的状态下以及当进气门21被最多驱动的状态下打开供给通道。 版权所有(C)2005,JPO&NCIPI
    • 10. 发明专利
    • Variable valve gear
    • 可变阀门齿轮
    • JP2007023942A
    • 2007-02-01
    • JP2005209122
    • 2005-07-19
    • Otics CorpToyota Motor Corpトヨタ自動車株式会社株式会社オティックス
    • MIYASATO YOSHIAKIKOSHIMIZU TAKAHIDEHOSODA FUMINORIYOSHIHARA YUJIYUASA TAKAOYAMAMOTO MASAYUKISUGIURA KEN
    • F01L13/00F01L1/18F02D13/02
    • PROBLEM TO BE SOLVED: To provide a variable valve gear capable of suitably reducing slippage of lift time integration value of engine valves caused by thermal expansion quantity difference between a cylinder head and a control shaft. SOLUTION: A control shaft, an input member and an output member 3, 34 are formed out of material of linear expansion coefficient different from that of the cylinder head. A rocker arm 31 and abutting valve drive force output surfaces 33e, 34e of the output members 33, 34 are formed with keeping inclined angle α in relation to a axial line direction to transmit valve drive force to the engine valve. Consequently, slippage of lift time integration value created by slippage of the input output member open angles due to thermal expansion difference between the control shaft and the cylinder head is reduced based on position slippage of the roller rocker arm 31 and the output members 33, 34 in the axial direction due to thermal expansion difference between the cylinder head and the input output member. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种能够适当地减少由气缸盖和控制轴之间的热膨胀量差引起的发动机气门升程时间积分值滑动的可变气门传动装置。 解决方案:控制轴,输入构件和输出构件3,34由与气缸盖的线膨胀系数不同的线性膨胀系数的材料形成。 输出构件33,34的摇臂31和邻接阀驱动力输出面33e,34e形成为保持相对于轴线方向的倾斜角α,将气门驱动力传递给发动机气门。 因此,基于滚动摇臂31和输出构件33,34的位置滑动,减小由于控制轴和气缸盖之间的热膨胀差导致的输入输出构件打开角度的滑动而产生的提升时间积分值的滑动 由于气缸盖和输入输出构件之间的热膨胀差异,在轴向上。 版权所有(C)2007,JPO&INPIT