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    • 2. 发明授权
    • Valve driving apparatus for engine
    • 发动机气门驱动装置
    • US6067947A
    • 2000-05-30
    • US266746
    • 1999-03-12
    • Yoshihito MoriyaKiyoshi SugimotoTadao HasegawaNoriyuki Iden
    • Yoshihito MoriyaKiyoshi SugimotoTadao HasegawaNoriyuki Iden
    • F01L1/14F01L1/26F01L1/34F01L13/00
    • F01L1/34F01L1/143F01L1/26F01L1/262F01L13/0042F02B2275/18
    • A valve driving apparatus for an internal combustion engine. Each combustion chamber has a pair of intake ports and a pair of intake valves for selectively opening and closing the intake ports. Each intake valve is driven with a variable amount of valve lift. The apparatus includes a camshaft rotatably supported by the engine, cams, cam followers, a shaft moving mechanism, and brackets. Each cam lifts an associated intake valve in response to rotation of the camshaft. Each cam has a cam nose for lifting a corresponding intake valve. The radius of the cam nose varies in the axial direction. Cam followers transmit movement of the intake cams to the intake valves. The shaft moving mechanism moves the cams relative to the valves in an axial direction of the camshaft thereby varying the amount of valve lift. A lifter structure is provided that is circularly shaped to improve manufacturing accuracy. In another embodiment, the valves are oriented to increase the amount of axial movement that the cam can make, which results in greater optimization of the air intake amount.
    • 一种用于内燃机的阀驱动装置。 每个燃烧室具有一对进气口和一对进气门,用于选择性地打开和关闭进气口。 每个进气阀都由可变量的气门升程驱动。 该装置包括由发动机,凸轮,凸轮从动件,轴移动机构和支架可旋转地支撑的凸轮轴。 每个凸轮响应于凸轮轴的旋转提升相关的进气门。 每个凸轮具有用于提升相应的进气门的凸轮鼻。 凸轮凸轮的半径在轴向上变化。 凸轮从动件将进气凸轮的运动传递到进气门。 轴移动机构在凸轮轴的轴向上相对于阀移动凸轮,从而改变气门升程量。 提供了一种圆形的升降机结构,以提高制造精度。 在另一个实施例中,阀被定向成增加凸轮可以产生的轴向移动量,这导致空气进入量的更大优化。
    • 4. 发明授权
    • Variable valve timing mechanism for internal combustion engine
    • 内燃机可变气门正时机构
    • US5816204A
    • 1998-10-06
    • US980353
    • 1997-11-28
    • Yoshihito MoriyaKiyoshi SugimotoTadao Hasegawa
    • Yoshihito MoriyaKiyoshi SugimotoTadao Hasegawa
    • F01L1/34F01L1/344
    • F01L1/34F01L1/344F01L1/3442F01L2001/34483
    • A variable valve timing mechanism of an internal combustion engine varies the rotational phase of a camshaft with respect to a drive shaft to vary the timing of a set of engine valves. The mechanism includes a first rotor for a rotation in synchronism with the drive shaft and a second rotor for a rotation in synchronism with the camshaft. The second rotor has vanes, which are located in hydraulic chambers. Unequal hydraulic forces on the vanes causes the second rotor to rotate with respect to the first rotor to change the rotational phase of the camshaft with respect to the drive shaft. Hydraulic pressure is supplied to a certain side of the vanes to apply forces to the vanes. A lock member locks the second rotor to the first rotor to fix the rotational phase of the camshaft with respect to the drive shaft. The lock member unlocks the second rotor from the first rotor only when the hydraulic pressure supplied to the vanes is such that the torque produced by the hydraulic pressure on the vanes is at least as great as an oppositely directed torque resulting from rotational fluctuation of the camshaft. This prevents the vanes from colliding against the walls of their chambers, which produces noise.
    • 内燃机的可变气门正时机构改变凸轮轴相对于驱动轴的旋转相位,以改变一组发动机气门的正时。 该机构包括用于与驱动轴同步旋转的第一转子和用于与凸轮轴同步旋转的第二转子。 第二转子具有位于液压室内的叶片。 叶片上的不均等的液压力导致第二转子相对于第一转子旋转,以改变凸轮轴相对于驱动轴的旋转相位。 液压被供应到叶片的某一侧以向叶片施加力。 锁定构件将第二转子锁定到第一转子以将凸轮轴的旋转相位相对于驱动轴固定。 仅当提供给叶片的液压使得由叶片上的液压产生的扭矩至少等于由凸轮轴的旋转波动产生的相反方向的扭矩时,锁定构件才能从第一转子解锁第二转子 。 这样可防止叶片与其室的壁碰撞,从而产生噪音。
    • 5. 发明授权
    • Valve control apparatus for an internal combustion engine
    • 一种用于内燃机的阀门控制装置
    • US5893345A
    • 1999-04-13
    • US69984
    • 1998-04-30
    • Kiyoshi SugimotoYoshihito MoriyaTadao Hasegawa
    • Kiyoshi SugimotoYoshihito MoriyaTadao Hasegawa
    • F01L1/34F01L1/344F01L13/00F02D13/02
    • F01L13/0042F01L1/34406
    • A valve characteristic control apparatus is provided with a simple structure in which a cam shaft having three-dimensional cams is axially displaced and the cam shaft is rotated with respect to a crank shaft by a ring gear. An axial driving mechanism axially displaces the intake cam shaft and thereby changes working angles of the three-dimensional cams. In this case, engagement of a spline formed on the cam shaft with teeth formed on an inner peripheral surface of the ring gear allows the cam shaft to axially move with respect to a pulley integrated with the crank shaft. A rotational driving mechanism axially displaces the ring gear, so that a helical spline formed on the pulley engages teeth formed on an outer peripheral surface of the ring gear and a spline formed on the cam shaft engages teeth formed on the inner peripheral surface of the ring gear. Thus, the cam shaft rotates relative to the pulley.
    • 阀特征控制装置具有简单的结构,其中具有三维凸轮的凸轮轴轴向移位,并且凸轮轴通过齿圈相对于曲轴旋转。 轴向驱动机构轴向移动进气凸轮轴,从而改变三维凸轮的工作角度。 在这种情况下,形成在凸轮轴上的花键与形成在齿圈的内周面上的齿的接合允许凸轮轴相对于与曲轴一体化的滑轮轴向移动。 旋转驱动机构轴向移动环形齿轮,使得形成在滑轮上的螺旋花键接合形成在齿圈的外周表面上的齿,并且形成在凸轮轴上的花键接合形成在环的内周表面上的齿 齿轮。 因此,凸轮轴相对于滑轮旋转。
    • 7. 发明授权
    • Valve lifter structure
    • 气门挺杆结构
    • US5988127A
    • 1999-11-23
    • US001222
    • 1997-12-30
    • Tadao HasegawaKiyoshi SugimotoYoshihito Moriya
    • Tadao HasegawaKiyoshi SugimotoYoshihito Moriya
    • F01L1/14F01L13/00
    • F01L13/0042F01L1/143
    • A valve lifter structure having a follower which tilts in a guide groove, for a mechanism for varying valve characteristics of a poppet valve by axial displacement of a three-dimensional cam having a profile varying in the axial direction, which is easily machined without degrading a mechanical strength. A guide groove is formed on a top surface of a valve lifter interposed between a cam and a top of a valve stem of a poppet valve to extend perpendicular to the axis of the cam. A follower is located in the guide groove, which extends in parallel to the guide groove and is capable of tilting in accordance with the change of the cam profile while being brought into slide-contact with the guide groove, and is inhibited from displacing in the extending direction by a limiting means. The guide groove is formed to have opposite open ends. The limiting means is defined by a stopper located on the guide groove side and an abutment member located on the follower side to abut to the stopper. The abutment member is defined by a pair of walls of the follower spaced at a distance opposite to each other in the extending direction thereof.
    • 一种气门挺杆结构,其具有在引导槽中倾斜的从动件,用于通过轴向移动的三维凸轮的轴向位移来改变提升阀的阀特性的机构,该三维凸轮在轴向上容易加工而不会劣化 机械强度。 引导槽形成在插入在凸轮和提升阀的阀杆的顶部之间的阀提升器的顶表面上,以垂直于凸轮的轴线延伸。 跟随器位于引导槽中,引导槽平行于引导槽延伸,并且能够在与引导槽滑动接触的同时根据凸轮轮廓的变化而倾斜,并且被抑制在 通过限制装置延伸方向。 引导槽形成为具有相对的开口端。 限制装置由位于引导槽侧的止动件和位于从动侧的邻接止动件的抵接构件限定。 抵靠构件由一对随动件的壁沿其延伸方向彼此间隔开限定。