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    • 1. 发明授权
    • Method of producing valve lifter
    • 生产气门挺杆的方法
    • US5918367A
    • 1999-07-06
    • US839339
    • 1997-04-18
    • Tamotsu TodoYasuo FukudaNoriomi HosakaSeiji TsurutaKenji SuzukiShin Koizumi
    • Tamotsu TodoYasuo FukudaNoriomi HosakaSeiji TsurutaKenji SuzukiShin Koizumi
    • B23P15/00F01L1/14F01L1/20
    • F01L1/205B23P15/00F01L1/143F01L2101/00F01L2103/00F02B2275/18Y10T29/49304Y10T29/4935
    • 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.
    • 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。
    • 2. 发明授权
    • Decompression engine brake device of automotive internal combustion
engine
    • 汽车内燃机减压发动机制动装置
    • US6032643A
    • 2000-03-07
    • US061341
    • 1998-04-17
    • Noriomi HosakaTamotsu TodoSeiji Tsuruta
    • Noriomi HosakaTamotsu TodoSeiji Tsuruta
    • F01L1/14F01L13/00F01L13/06F02D13/04
    • F01L13/0036F01L1/143F01L13/06F01L1/08
    • A decompression engine brake device is incorporated with an internal combustion engine. The device comprises an exhaust valve arranged to open and close an exhaust port of a combustion chamber of the engine. A valve stem extends from the exhaust valve. A valve lifter is slidably disposed in a cylinder head of the engine. The valve lifter has the valve stem contacting thereto. An exhaust cam disposed about an exhaust cam shaft is operatively engageable with the valve lifter to actuate the exhaust valve in accordance with a contour of the exhaust cam. An engine brake cam is defined by the exhaust cam. A hydraulically operating device is employed for inducing an operative engagement between the engine brake cam with the valve lifter thereby to actuate the exhaust valve in accordance with a contour of the engine brake cam.
    • 减压发动机制动装置与内燃机并入。 该装置包括排气阀,其布置成打开和关闭发动机的燃烧室的排气口。 阀杆从排气阀延伸。 气门挺杆可滑动地设置在发动机的气缸盖中。 阀提升器具有与其接触的阀杆。 设置在排气凸轮轴周围的排气凸轮可与气门挺杆可操作地接合,以根据排气凸轮的轮廓致动排气阀。 发动机制动器凸轮由排气凸轮限定。 采用液压操作装置来引导发动机制动凸轮与气门挺杆之间的操作接合,从而根据发动机制动凸轮的轮廓致动排气阀。
    • 6. 发明授权
    • Valve timing control device of internal combustion engine
    • 内燃机气门正时控制装置
    • US06263843B1
    • 2001-07-24
    • US09402831
    • 1999-10-13
    • Tamotsu TodoSeiji TsurutaHirokazu Uehara
    • Tamotsu TodoSeiji TsurutaHirokazu Uehara
    • F01L1344
    • F01L1/344Y02T10/146
    • 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.
    • 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。
    • 7. 发明授权
    • Intake and/or exhaust-valve timing control sytem for internal combustion
engine
    • 内燃机和/或排气阀时间控制系统
    • US5203290A
    • 1993-04-20
    • US929434
    • 1992-08-14
    • Seiji TsurutaTamotsu TodoHideaki Onishi
    • Seiji TsurutaTamotsu TodoHideaki Onishi
    • F01M11/02F01L1/34F01L1/344
    • F01L1/34406Y10T74/2102
    • 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.
    • 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。
    • 8. 发明授权
    • Valve timing control device of internal combustion engine
    • 内燃机气门正时控制装置
    • US08677965B2
    • 2014-03-25
    • US13080239
    • 2011-04-05
    • Hiroyuki KatoSeiji TsurutaKotaro WatanabeYoshinori Ichinosawa
    • Hiroyuki KatoSeiji TsurutaKotaro WatanabeYoshinori Ichinosawa
    • F01L9/00
    • F02D13/0219F01L1/3442F01L2001/3443F01L2001/34433F01L2001/34453F01L2001/34459F01L2001/34469F02D2013/0292Y02T10/18
    • A valve timing control device comprises a drive rotation member driven by a crankshaft of an internal combustion engine; a driven rotation member fixed to a camshaft that actuates engine valves to open and close, the drive rotation member and driven rotation member being coaxially arranged to make a relative rotation therebetween; a phase varying mechanism that rotates the driven rotation member relative to the drive rotation member within a given angle, the phase varying mechanism being able to cause the driven rotation member to take the most-retarded phase position, the most-advanced phase position and a middle phase position defined between the most-retarded phase position and the most-advanced phase position; and a position keeping mechanism that is able to keep the driven rotation member at least the most-retarded phase position and the middle phase position at the time of starting the engine, and is able to select one of the most-retarded phase position and the middle phase position in accordance with an operation condition of the engine.
    • 气门正时控制装置包括由内燃机的曲轴驱动的驱动旋转构件; 固定在凸轮轴上的从动旋转构件,其驱动发动机气门打开和关闭,所述驱动旋转构件和从动旋转构件同轴布置以在其间进行相对旋转; 相变机构,其使从动旋转构件相对于驱动旋转构件在给定角度内旋转,所述相变机构能够使从动旋转构件采取最延迟的相位位置,最前进的相位位置和 在最相位位置和最高级相位之间定义的中间位置; 以及位置保持机构,其能够将从动旋转构件保持在起动发动机时的至少最延迟的相位位置和中间相位置,并且能够选择最延迟的相位位置和 根据发动机的运转状态的中间位置。