专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07171931B2 Variable valve system with control shaft actuating mechanism 失效
标题翻译：具有控制轴驱动机构的可变阀门系统
公开(公告)号：US07171931B2
公开(公告)日：2007-02-06
申请号：US11435758
申请日：2006-05-18
申请人： Tamotsu Todo , Shinichi Kawada , Keisuke Takeda , Mikihiro Kajiura
发明人： Tamotsu Todo , Shinichi Kawada , Keisuke Takeda , Mikihiro Kajiura
IPC分类号： F01L1/34
CPC分类号： F01L1/022 , F01L1/34 , F01L13/0026 , F01L2013/0073 , F01L2101/00 , F01L2820/032
摘要： A variable valve system varies an operation condition of an engine valve by controlling an angular position of a control shaft in accordance with an operation condition of the engine. The system has an actuating mechanism for actuating the control shaft. The actuating mechanism comprises a threaded shaft that is rotated about its axis in accordance with the operation condition of the engine; a nut member operatively engaged with the threaded shaft, so that upon rotation of the threaded shaft the nut member runs axially along the threaded shaft; a link mechanism provided between the control shaft and the nut member, so that the axial movement of the nut member along the threaded shaft induces a rotational motion of the control shaft; and a biasing mechanism that biases the nut member relative to the threaded shaft at least at a predetermined range of the operation condition of the engine valve.
摘要翻译：可变阀系统通过根据发动机的操作条件控制控制轴的角位置来改变发动机气门的操作状态。该系统具有用于致动控制轴的致动机构。致动机构包括螺纹轴，该螺纹轴根据发动机的运行状态绕其轴线旋转; 螺母构件与螺纹轴可操作地接合，使得当螺纹轴旋转时，螺母构件沿着螺纹轴轴向延伸; 连杆机构，设置在所述控制轴和所述螺母构件之间，使得所述螺母构件沿着所述螺纹轴的轴向运动引起所述控制轴的旋转运动; 以及偏置机构，其至少在发动机气门的操作状态的预定范围内相对于螺纹轴偏压螺母构件。

2. 发明申请

US20050211204A1 Variable valve system with control shaft actuating mechanism 失效
标题翻译：具有控制轴驱动机构的可变阀门系统
公开(公告)号：US20050211204A1
公开(公告)日：2005-09-29
申请号：US11076156
申请日：2005-03-10
申请人： Tamotsu Todo , Shinichi Kawada , Keisuke Takeda , Mikihiro Kajiura
发明人： Tamotsu Todo , Shinichi Kawada , Keisuke Takeda , Mikihiro Kajiura
IPC分类号： F01L1/34 , F01L13/00
CPC分类号： F01L1/022 , F01L1/34 , F01L13/0026 , F01L2013/0073 , F01L2101/00 , F01L2820/032
摘要： A variable valve system varies an operation condition of an engine valve by controlling an angular position of a control shaft in accordance with an operation condition of the engine. The system has an actuating mechanism for actuating the control shaft. The actuating mechanism comprises a threaded shaft that is rotated about its axis in accordance with the operation condition of the engine; a nut member operatively engaged with the threaded shaft, so that upon rotation of the threaded shaft the nut member runs axially along the threaded shaft; a link mechanism provided between the control shaft and the nut member, so that the axial movement of the nut member along the threaded shaft induces a rotational motion of the control shaft; and a biasing mechanism that biases the nut member relative to the threaded shaft at least at a predetermined range of the operation condition of the engine valve.
摘要翻译：可变阀系统通过根据发动机的操作条件控制控制轴的角位置来改变发动机气门的操作状态。该系统具有用于致动控制轴的致动机构。致动机构包括螺纹轴，该螺纹轴根据发动机的运行状态绕其轴线旋转; 螺母构件与螺纹轴可操作地接合，使得当螺纹轴旋转时，螺母构件沿着螺纹轴轴向延伸; 连杆机构，设置在所述控制轴和所述螺母构件之间，使得所述螺母构件沿着所述螺纹轴的轴向运动引起所述控制轴的旋转运动; 以及偏置机构，其至少在发动机气门的操作状态的预定范围内相对于螺纹轴偏压螺母构件。

3. 发明授权

US06263843B1 Valve timing control device of internal combustion engine 有权
标题翻译：内燃机气门正时控制装置
公开(公告)号：US06263843B1
公开(公告)日：2001-07-24
申请号：US09402831
申请日：1999-10-13
申请人： Tamotsu Todo , Seiji Tsuruta , Hirokazu Uehara
发明人： Tamotsu Todo , Seiji Tsuruta , Hirokazu Uehara
IPC分类号： F01L1344
CPC分类号： F01L1/344 , Y02T10/146
摘要： A relative angular phase between a timing sprocket 1 and a camshaft 2 is changed by rotating a vane rotor 3 in a normal-rotation direction or in a reverse-rotation direction by way of relative application of hydraulic pressure to one of a timing-advance phase hydraulic pressure chamber 32 and a timing-retard phase hydraulic pressure chamber 33 both defined in a housing 6 and relative release of hydraulic pressure from the other of the hydraulic pressure chambers, in order to vary the opening and closing timing of an intake valve. A restricting mechanism 10 is also provided for reverse rotation of the vane rotor, which may occur during rotating from the timing-retard phase to the timing advance phase owing to a positive fluctuating torque of the camshaft. In the restricting mechanism, a plunger 52 is projected outward by way of a hydraulic pressure supplied to a high-pressure chamber 54, so that the plunger is constantly in abutted-contact with one side wall 13a, and whereby the plunger 52 produces a pushing a force or thrust by virtue of a check valve 56, so as to counteract the positive fluctuating torque. A turning-back phenomenon of the vane rotor can be restricted in presence of torque fluctuations of the camshaft during rotation of the vane rotor, thus enhancing the responsiveness of valve timing control.
摘要翻译：正时链轮1和凸轮轴2之间的相对角度相位通过使叶片转子3沿正转方向或反向旋转方向旋转，通过相对于定时提前相位液压室32和定时延迟相液压室33，两者都限定在壳体6中，并相对于另一个液压室相对地释放液压，以改变进气门的打开和关闭正时。还设置有限制机构10，用于由于凸轮轴的正的波动转矩而从旋转时间延迟阶段到定时提前阶段期间可能发生的叶片转子的反向旋转。在限制机构中，柱塞52通过供给高压室54的液压被向外突出，使得柱塞与一个侧壁13a不断地抵接，从而柱塞52产生推压通过止回阀56的力或推力，以抵消正的波动转矩。在叶片转子旋转期间，由于凸轮轴的扭矩波动的存在，可以限制叶片转子的回转现象，从而提高了气门正时控制的响应性。

4. 发明申请

US20050199199A1 Adjusting mechanism and adjusting method of valve-lift amount of internal combustion engine 失效
标题翻译：内燃机气门升程量调节机构及调整方法
公开(公告)号：US20050199199A1
公开(公告)日：2005-09-15
申请号：US11068928
申请日：2005-03-02
申请人： Kaoru Eguchi , Masaru Nemoto , Yoshihiko Yamada , Tamotsu Todo
发明人： Kaoru Eguchi , Masaru Nemoto , Yoshihiko Yamada , Tamotsu Todo
IPC分类号： F01L1/22 , F01L13/00 , F01L1/34
CPC分类号： F01L13/0021 , F01L1/143 , F01L13/0026 , F01L2013/0073 , F01L2103/00
摘要： A rocker arm 13 is rocked with respect to a control shaft 32 through a link arm 14 by rotation of a drive shaft 3. With this configuration, a rocking cam 7 is rocked with respect to the drive shaft 3 through a link member 15. A valve lifter 6 is pushed downward by rocking of the rocking cam 7. The control shaft 32 is integrally provided with a control cam which is eccentric with respect to an axis of the control shaft 32. If the control cam is rotated, a rocking fulcrum position of the rocker arm 13 is changed, thereby varying a valve-lift amount. An eccentric bush 22 is provided on an inner peripheral surface of the rocker arm 13 on an outer periphery side of the control cam. The eccentric bush 22 meshes with an inner peripheral gear formed on an inner periphery of the rocker arm 13 by an outer peripheral gear 39b, and is coupled to the rocker arm 13. This coupled state is released by moving the eccentric bush 22 in the axial direction. In this state, the eccentric bush 22 is rotated by a predetermined amount with respect to the control cam and the rocker arm 13, thereby adjusting the valve-lift amount.
摘要翻译：通过驱动轴3的旋转，摇臂13相对于控制轴32通过连杆臂14摇摆。利用这种构造，摆动凸轮7通过连杆构件15相对于驱动轴3摆动。通过摇摆凸轮7的摆动来向下推动气门挺杆6。控制轴32一体地设置有相对于控制轴32的轴线偏心的控制凸轮。如果控制凸轮旋转，则摇臂13的摆动支点位置改变，从而改变气门升程量。偏心衬套22设置在控制凸轮的外周侧的摇臂13的内周面上。偏心衬套22与通过外周齿轮39b形成在摇臂13的内周上的内周齿轮啮合，并且联接到摇臂13。通过使偏心衬套22沿轴向移动来释放该联接状态。在这种状态下，偏心衬套22相对于控制凸轮和摇臂13旋转预定量，从而调节气门升程量。

5. 发明授权

US06672264B2 Valve timing control device of internal combustion engine 失效
标题翻译：内燃机气门正时控制装置
公开(公告)号：US06672264B2
公开(公告)日：2004-01-06
申请号：US10267776
申请日：2002-10-10
申请人： Masahiko Watanabe , Tamotsu Todo
发明人： Masahiko Watanabe , Tamotsu Todo
IPC分类号： F01L134
CPC分类号： F01L1/022 , F01L1/352 , F01L2103/00
摘要： A first stopper device is arranged between an output element of a planetary gear unit and a drive rotation member driven by an output shaft of an engine. The first stopper device stops a relative rotation therebetween when a relative rotation angle therebetween comes to a first predetermined degree. A second stopper device may be arranged between a free element of the planetary gear unit and an input element of the planetary gear unit. The second stopper device stops a relative rotation therebetween when a relative rotation angle therebetween comes to a second predetermined degree.
摘要翻译：第一止动装置布置在行星齿轮单元的输出元件和由发动机的输出轴驱动的驱动旋转构件之间。当它们之间的相对旋转角度达到第一预定程度时，第一止动装置停止它们之间的相对旋转。第二止动装置可以布置在行星齿轮单元的自由元件和行星齿轮单元的输入元件之间。当它们之间的相对旋转角度达到第二预定程度时，第二止动装置停止它们之间的相对旋转。

6. 发明授权

US5918367A Method of producing valve lifter 失效
标题翻译：生产气门挺杆的方法
公开(公告)号：US5918367A
公开(公告)日：1999-07-06
申请号：US839339
申请日：1997-04-18
申请人： Tamotsu Todo , Yasuo Fukuda , Noriomi Hosaka , Seiji Tsuruta , Kenji Suzuki , Shin Koizumi
发明人： Tamotsu Todo , Yasuo Fukuda , Noriomi Hosaka , Seiji Tsuruta , Kenji Suzuki , Shin Koizumi
IPC分类号： B23P15/00 , F01L1/14 , F01L1/20
CPC分类号： F01L1/205 , B23P15/00 , F01L1/143 , F01L2101/00 , F01L2103/00 , F02B2275/18 , Y10T29/49304 , Y10T29/4935
摘要： A method of producing a valve lifter to be used in a valve operating mechanism of an automotive vehicle. The valve lifter includes a skirt section, a crown section formed one end of the skirt section so that a cam of a camshaft is slidably contactable with the crown section, and a contacting section formed at an inside surface of the crown section and contactable with a valve stem of an engine valve. The production method comprises the following steps in the sequence set forth: (a) cold-forging a base material to form a valve lifter-shaped base material; (b) cold-pressing the base material to shape the valve lifter-shaped base material; (c) grinding an outer surface of the valve lifter-shaped base material to trim an outer shape of the valve-lifter-shaped base material; (d) totally machining the outer surface and an inner surface of the valve-shaped base material to adjust dimensions of parts of the valve lifter-shaped base material; (e) heat-treating only a part of the valve lifter-shaped base material, corresponding to the contacting section, to increase a hardness of the contacting section; and (f) grinding the contacting section to finish the contacting section.
摘要翻译：一种制造用于机动车辆的气门操作机构的气门挺杆的方法。该气门挺杆包括一个裙部，一顶部部分形成在裙部的一端，使得一凸轮轴的凸轮与该冠部可滑动接触;以及一接触部，该接触部形成于该冠部的内表面，发动机气门的阀杆。制造方法按照以下顺序包括以下步骤：（a）冷锻基材以形成气门挺杆状基材; （b）对基体材料进行冷压，以形成气门挺杆状基材; （c）研磨阀升降器基材的外表面，以修整升降器状基材的外形; （d）对所述阀状基材的外表面和内表面进行全面加工，以调节所述阀升降器基材的部件的尺寸; （e）仅对与所述接触部分相对应的所述阀提升器状基体的一部分进行热处理，以增加所述接触部的硬度; 和（f）研磨接触部分以完成接触部分。

7. 发明授权

US07032551B2 Adjusting mechanism adjusting method of valve-lift amount of internal combustion engine 失效
标题翻译：内燃机气门升程量调节机构调整方法
公开(公告)号：US07032551B2
公开(公告)日：2006-04-25
申请号：US11068928
申请日：2005-03-02
申请人： Kaoru Eguchi , Masaru Nemoto , Yoshihiko Yamada , Tamotsu Todo
发明人： Kaoru Eguchi , Masaru Nemoto , Yoshihiko Yamada , Tamotsu Todo
IPC分类号： F01L1/34
CPC分类号： F01L13/0021 , F01L1/143 , F01L13/0026 , F01L2013/0073 , F01L2103/00
摘要： A rocker arm 13 is rocked with respect to a control shaft 32 through a link arm 14 by rotation of a drive shaft 3. With this configuration, a rocking cam 7 is rocked with respect to the drive shaft 3 through a link member 15. A valve lifter 6 is pushed downward by rocking of the rocking cam 7. The control shaft 32 is integrally provided with a control cam which is eccentric with respect to an axis of the control shaft 32. If the control cam is rotated, a rocking fulcrum position of the rocker arm 13 is changed, thereby varying a valve-lift amount. An eccentric bush 22 is provided on an inner peripheral surface of the rocker arm 13 on an outer periphery side of the control cam. The eccentric bush 22 meshes with an inner peripheral gear formed on an inner periphery of the rocker arm 13 by an outer peripheral gear 39b, and is coupled to the rocker arm 13. This coupled state is released by moving the eccentric bush 22 in the axial direction. In this state, the eccentric bush 22 is rotated by a predetermined amount with respect to the control cam and the rocker arm 13, thereby adjusting the valve-lift amount.
摘要翻译：通过驱动轴3的旋转，摇臂13相对于控制轴32通过连杆臂14摇摆。利用这种构造，摆动凸轮7通过连杆构件15相对于驱动轴3摆动。通过摇摆凸轮7的摆动来向下推动气门挺杆6。控制轴32一体地设置有相对于控制轴32的轴线偏心的控制凸轮。如果控制凸轮旋转，则摇臂13的摆动支点位置改变，从而改变气门升程量。偏心衬套22设置在控制凸轮的外周侧的摇臂13的内周面上。偏心衬套22与通过外周齿轮39b形成在摇臂13的内周上的内周齿轮啮合，并且联接到摇臂13。通过使偏心衬套22沿轴向移动来释放该联接状态。在这种状态下，偏心衬套22相对于控制凸轮和摇臂13旋转预定量，从而调节气门升程量。

8. 发明授权

US06672265B2 Valve timing control system for internal combustion engine 失效
标题翻译：内燃机气门正时控制系统
公开(公告)号：US06672265B2
公开(公告)日：2004-01-06
申请号：US10267864
申请日：2002-10-10
申请人： Tamotsu Todo , Kazuhiko Takayanagi , Shigeaki Yamamuro , Naotaka Nakura
发明人： Tamotsu Todo , Kazuhiko Takayanagi , Shigeaki Yamamuro , Naotaka Nakura
IPC分类号： F01L134
CPC分类号： F01L1/34409 , F01L1/022 , F01L1/34 , F01L2101/00
摘要： In a valve timing control system, an intermediate rotator is rotated with respect to a driving plate and a lever shaft to make radial displacement of a ball engaged with a spiral slot of the intermediate rotator along a radial slot. The radial displacement is converted into relative rotation of the driving plate and the lever shaft through a link. A bottomed cylindrical guide member which is rotatably supported by a front end of the link has a base engaged with the spiral slot. The ball engaged with the spiral slot, a retainer for supporting the back of the ball, and a coil spring for biasing the ball through the retainer are accommodated in a hold hole of the guide member. Disengagement of the ball from the spiral slot is prevented by an abutment of an end face of the retainer and a bottom wall of the hold hole.
摘要翻译：在气门正时控制系统中，中间旋转体相对于驱动板和杠杆轴旋转，以使得与中间旋转器的螺旋槽接合的球沿径向槽径向位移。径向位移通过连杆转换成驱动板和杠杆轴的相对旋转。由连杆的前端可旋转地支撑的有底圆柱形引导件具有与螺旋槽接合的底座。与螺旋槽接合的球，用于支撑球背部的保持器和用于通过保持器偏置球的螺旋弹簧容纳在引导构件的保持孔中。通过保持器的端面和保持孔的底壁的抵接来防止球脱离螺旋槽。

9. 发明授权

US06520132B2 Valve timing control system of internal combustion engine 有权
公开(公告)号：US06520132B2
公开(公告)日：2003-02-18
申请号：US10114063
申请日：2002-04-03
申请人： Tamotsu Todo
发明人： Tamotsu Todo
IPC分类号： F01L1344
CPC分类号： F01L1/3442 , F01L2001/34479 , F01L2101/00
摘要： A valve timing control system of an internal combustion engine has: a drive force conveyer; a cam shaft; a housing rotating integrally with one of the drive force conveyer and the cam shaft; a vane rotor housed in the housing, the vane rotor rotating integrally with the other of the drive force conveyer and the cam shaft; an advanced angle chamber and a retarded angle chamber housed in the housing, and turning the vane rotor with an oil pressure; an oil pressure supply-drain measure; a lock gear; and an unlock gear. A large diameter section of a lock pin and an inner periphery of a pin hole define a first clearance while a small diameter section of the lock pin and the inner periphery of the pin hole define a second clearance, such that the first clearance is larger than the second clearance.

10. 发明授权

US5203290A Intake and/or exhaust-valve timing control sytem for internal combustion engine 失效
标题翻译：内燃机和/或排气阀时间控制系统
公开(公告)号：US5203290A
公开(公告)日：1993-04-20
申请号：US929434
申请日：1992-08-14
申请人： Seiji Tsuruta , Tamotsu Todo , Hideaki Onishi
发明人： Seiji Tsuruta , Tamotsu Todo , Hideaki Onishi
IPC分类号： F01M11/02 , F01L1/34 , F01L1/344
CPC分类号： F01L1/34406 , Y10T74/2102
摘要： A valve timing control system for an internal combustion engine is provided. This system includes a sprocket assembly in driven connection with a crankshaft of the engine, a camshaft assembly disposing cams for opening and closing intake- and/or exhaust valves, and a ring gear assembly functioning as a piston slidably disposed between the sprocket assembly and the camshaft assembly for modifying a phase angle relation between the sprocket assembly and the camshaft assembly. The system further includes first and second pressure chambers for exerting fluid pressure on the ring gear assembly to be displaced over a range of first, second, and third positions which correspond to phase angle relations respectively suitable for low, intermediate, and high engine load levels. The ring gear assembly is responsive to fluid pressures in the first and second pressure chambers both below a threshold valve to be arranged at the first position, responsive to elevation in the fluid pressure in the first pressure chamber above the threshold value to be arranged at the second position, and responsive to elevation in the fluid pressures in the first and second pressure chambers both above the threshold value to be arranged at the third position.
摘要翻译：提供一种用于内燃机的气门正时控制系统。该系统包括与发动机的曲轴驱动连接的链轮组件，设置用于打开和关闭进气和/或排气阀的凸轮的凸轮轴组件，以及用作可滑动地设置在链轮组件和用于改变链轮组件和凸轮轴组件之间的相位角关系的凸轮轴组件。该系统还包括第一和第二压力室，用于在环形齿轮组件上施加流体压力，以在对应于分别适合于低，中等和高发动机负载水平的相位角关系的第一，第二和第三位置的范围内移动。响应于第一压力室中的流体压力的升高高于阈值，环形齿轮组件响应于阈值阀下方的第一和第二压力室中的流体压力被布置在第一位置，以被布置在第二位置，并且响应于高于阈值的第一和第二压力室中的流体压力的升高，以被布置在第三位置。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式