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公开(公告)号：US06135077A
公开(公告)日：2000-10-24
申请号：US186667
申请日：1998-11-04
CPC分类号： F01L1/344 , F01L1/024 , F01L1/3442 , F01L2001/3444 , F01L2001/34483
摘要： A valve timing changing apparatus for changing valve timings of intake and exhaust valves inhibits a deterioration in the precision of a change of a valve overlap period. A first variable valve timing mechanism (first VVT) is mounted to an intake cam shaft, and a second variable valve timing mechanism (second VVT) is mounted to a crank shaft. A timing belt drivingly couples a cam pulley mounted to an exhaust cam shaft, a cam pulley of the first VVT, and a cam pulley of the second VVT to one another. The first VVT changes a rotational phase of the intake cam shaft so as to change a valve timing of intake valves. The second VVT changes rotational phases of both the intake and exhaust cam shafts so as to simultaneously change valve timings of the intake and exhaust valves.
摘要翻译： 用于改变进气门和排气门的气门正时的气门正时改变装置阻止了阀重叠周期变化的精度的降低。 第一可变气门正时机构（第一VVT）安装在进气凸轮轴上，第二可变气门正时机构（第二VVT）安装在曲轴上。 同步带将安装到排气凸轮轴的凸轮滑轮，第一VVT的凸轮滑轮和第二VVT的凸轮滑轮彼此驱动耦合。 第一VVT改变进气凸轮轴的旋转相位，以改变进气门的气门正时。 第二VVT改变进气和排气凸轮轴的旋转相位，以同时改变进气门和排气门的气门正时。
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公开(公告)号：US6067947A
公开(公告)日：2000-05-30
申请号：US266746
申请日：1999-03-12
CPC分类号： F01L1/34 , F01L1/143 , F01L1/26 , F01L1/262 , F01L13/0042 , F02B2275/18
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US5988128A
公开(公告)日：1999-11-23
申请号：US47249
申请日：1998-03-24
CPC分类号： F01L1/34 , F01L1/143 , F01L1/26 , F01L1/262 , F01L13/0042 , F02B2275/18
摘要： 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.
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公开(公告)号：US5816204A
公开(公告)日：1998-10-06
申请号：US980353
申请日：1997-11-28
CPC分类号： F01L1/34 , F01L1/344 , F01L1/3442 , F01L2001/34483
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US5893345A
公开(公告)日：1999-04-13
申请号：US69984
申请日：1998-04-30
CPC分类号： F01L13/0042 , F01L1/34406
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US6014952A
公开(公告)日：2000-01-18
申请号：US152270
申请日：1998-09-14
申请人： Osamu Sato , Kiyoshi Sugimoto , Yoshihito Moriya , Noriyuki Iden , Shinitiro Kikuoka , Tadao Hasegawa
发明人： Osamu Sato , Kiyoshi Sugimoto , Yoshihito Moriya , Noriyuki Iden , Shinitiro Kikuoka , Tadao Hasegawa
CPC分类号： F01L1/3442 , F01L2001/34426
摘要： Each of a positive spline member and a negative spline member is engaged through a spline engagement with a vane rotor. Both the positive spline member and the negative spline member are securely fixed to a cam shaft by means of a bolt. The cam shaft causes an axial reciprocative movement relative to the vane rotor. Each external spline formed on the positive spline member is brought into contact at its trailing side with an internal spline of the vane rotor. Each external spline formed on the negative spline member is brought into contact at its leading side with an internal spline of the vane rotor. This arrangement eliminates any backlash formed between the internal splines of the vane rotor and the external splines of the positive and negative spline members.
摘要翻译： 正花键构件和负花键构件中的每一个通过与叶片转子的花键接合而接合。 正花键构件和负花键构件均通过螺栓牢固地固定到凸轮轴。 凸轮轴相对于叶片转子产生轴向往复运动。 形成在正花键构件上的每个外花键在其后侧与叶片转子的内花键接触。 形成在负花键构件上的每个外花键在其前侧与叶片转子的内花键接触。 这种布置消除了在叶片转子的内花键与正花键和负花键构件的外花键之间形成的任何间隙。
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公开(公告)号：US5988127A
公开(公告)日：1999-11-23
申请号：US001222
申请日：1997-12-30
CPC分类号： F01L13/0042 , F01L1/143
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US5924397A
公开(公告)日：1999-07-20
申请号：US972572
申请日：1997-11-18
CPC分类号： F01L1/34406 , F01L1/46 , F01L13/0042
摘要： An apparatus for controlling valve performance in an engine is disclosed. A first detection blade helically extends on a camshaft. A pair of second detection blades are located on the camshaft and extend axially on the camshaft. An electromagnetic pickup is arranged to face the camshaft. The pickup produces a pulse in response to one of the blades passing by the pickup when the camshaft rotates. ECU computes the axial position of the camshaft based on the change in the time period from the pulse corresponding to the second blade to the pulse corresponding to the first blade.
摘要翻译： 公开了一种用于控制发动机的阀性能的装置。 第一检测刀片在凸轮轴上螺旋延伸。 一对第二检测刀片位于凸轮轴上并且在凸轮轴上轴向延伸。 电磁拾音器被布置为面向凸轮轴。 当凸轮轴旋转时，拾取器响应于通过拾取器的一个叶片产生脉冲。 ECU根据从对应于第二叶片的脉冲到对应于第一叶片的脉冲的时间段的变化来计算凸轮轴的轴向位置。
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公开(公告)号：US6062183A
公开(公告)日：2000-05-16
申请号：US233477
申请日：1999-01-20
申请人： Osamu Sato , Yoshihito Moriya , Kiyoshi Sugimoto
发明人： Osamu Sato , Yoshihito Moriya , Kiyoshi Sugimoto
CPC分类号： F01L1/3442 , F01L13/0042 , F01L1/024 , F01L2001/0537 , F01L2001/34453 , Y10T74/2102
摘要： In a variable valve operation control apparatus, an exhaust camshaft and an intake camshaft are held non-movably and movably in the axial direction, respectively. The intake camshaft has a profile varying in the axial direction. A timing pulley and the exhaust camshaft are fixed by a bolt to drive the exhaust camshaft by a crankshaft. A vane rotor is fixed to the exhaust camshaft, while a shoe housing and a gear are held rotatably relative to the vane rotor. Torque gears are provided on the intake camshaft to rotate with the intake camshaft. The rotational phase of the intake camshaft relative to the crankshaft is adjusted by hydraulically varying the rotational phase of the shoe housing relative to the vane rotor.
摘要翻译： 在可变气门操作控制装置中，排气凸轮轴和进气凸轮轴分别沿轴向不可移动地和可移动地保持。 进气凸轮轴具有在轴向上变化的轮廓。 定时滑轮和排气凸轮轴由螺栓固定，以通过曲轴驱动排气凸轮轴。 叶片转子固定到排气凸轮轴，而鞋壳体和齿轮相对于叶片转子保持可旋转。 进气凸轮轴上设有扭矩传动齿轮，与进气凸轮轴一起旋转。 进气凸轮轴相对于曲轴的旋转相位通过相对于叶片转子液压地改变滑座壳体的旋转相位来调节。
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公开(公告)号：US5924395A
公开(公告)日：1999-07-20
申请号：US13474
申请日：1998-01-26
申请人： Yoshihito Moriya , Kiyoshi Sugimoto
发明人： Yoshihito Moriya , Kiyoshi Sugimoto
IPC分类号： B60K6/20 , B60K6/24 , B60K6/46 , B60W10/06 , B60W10/08 , B60W20/00 , F01L1/34 , F01L1/344 , F02D13/02 , F02D17/00 , F02D41/04 , F02D41/06
CPC分类号： F02D13/0234 , B60K6/46 , B60W10/06 , B60W10/08 , B60W20/00 , F01L1/34 , F01L1/3442 , F02D13/0269 , F02D41/062 , F01L2001/3444 , F01L2001/34459 , F01L2201/00 , F02B2275/18 , F02D2013/0292 , F02D41/042 , F02N11/0814 , F02N19/004 , Y02T10/142 , Y02T10/6217 , Y02T10/6286 , Y10S903/903 , Y10S903/905
摘要： To start an internal combustion engine at appropriate intake valve close timing. A valve timing regulation system 10 regulates oil pressure supplied to advance chambers and retard chambers formed by a vane 29 and a housing 28 to advance or retard the vane 29 and change the open/close timing of the intake valve. The position of the vane 29 is fixed by inserting a lock pin 43 into an advance-side engagement hole 49A at the most advanced position. Engine stopping is effected so as to set the vane 29 at the middle position, while starting when the coolant temperature is low is effected after rotating the crankshaft backward by a prescribed angle to fix the vane 29 at the most advanced position and is effected when the temperature is high merely by cranking to fix the vane 29 at the most retarded position. Cold starting is easy when effected at the most advanced position because the compression pressure is high, while vibration at warm starting is reduced when starting is effected at the most retarded position because the compression pressure is reduced.
摘要翻译： 在适当的进气门关闭时间启动内燃机。 气门正时调节系统10调节供应到前进室的油压和延迟由叶片29和壳体28形成的室，以推进或延迟叶片29并改变进气门的打开/关闭正时。 通过将锁定销43插入到最前进位置的前进侧接合孔49A中来固定叶片29的位置。 进行发动机停止，以将叶片29设置在中间位置，同时在将曲轴向后旋转预定角度后，当冷却剂温度低时启动，以将叶片29固定在最前进位置，并且当 温度仅通过起动将叶片29固定在最延迟位置。 由于压缩压力较高，因此在最先进的位置进行冷起动很容易，而由于压缩压力降低，因此在最大延迟位置进行启动时，暖启动时的振动减小。
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