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公开(公告)号：US5813376A
公开(公告)日：1998-09-29
申请号：US936108
申请日：1997-09-23
摘要： An engine has a crankshaft, a combustion chamber and a valve. The valve opens and closes the combustion chamber. The valve has a lift characteristic that is altered by a control device according to a change of hydraulic pressure therein. The engine has a lubricant passage that is connected with an oil pump and supplies oil to a mechanism formed by parts slidably connecting one another within the engine. A hydraulic pressure passage extends into an interior of the control device to exchange the hydraulic pressure with the control device, thereby the control device is actuated to alter the lift characteristic. The oil pump supplies the oil to the pressure passage when connected with the pressure passage. The oil pan supplies the oil to the pressure passage when connected with the pressure passage. A switching valve selects one of the oil pump and the oil pan to connect the selected one with the control device based on the engine speed.
摘要翻译： 发动机具有曲轴，燃烧室和阀。 阀门打开和关闭燃烧室。 阀具有由控制装置根据其中的液压变化而改变的升力特性。 发动机具有与油泵连接的润滑剂通路，并且向由发动机内部可滑动地连接的部件形成的机构供给油。 液压通道延伸到控制装置的内部以与控制装置交换液压，从而致动控制装置以改变升力特性。 当与压力通道连接时，油泵将油供应到压力通道。 当与压力通道连接时，油盘将油供应到压力通道。 开关阀选择油泵和油底壳之一，根据发动机转速将选定的油泵与控制装置连接。
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公开(公告)号：US5904226A
公开(公告)日：1999-05-18
申请号：US936025
申请日：1997-09-23
CPC分类号： F01M1/16 , F16N2230/02 , F16N2280/02
摘要： An engine has a crankshaft, a combustion chamber and a valve that selectively opens and closes the combustion chamber. The valve has a timing relationship to the crankshaft and lift characteristic. A control device hydraulically alters at least one of the timing relationship and the lift characteristic. A lubricant passage is connected with the control device to supply oil to a mechanism that is formed by engine parts slidably contacting one another within the engine. An auxiliary passage is provided for supplying the oil to the mechanism. Oil supplied from an oil pump to said auxiliary passage is restricted by an electromagnetic valve that is actuated based on the instruction from an electric controller when engine speed is lower than a predetermined value.
摘要翻译： 发动机具有选择性地打开和关闭燃烧室的曲轴，燃烧室和阀。 阀门具有与曲轴和升力特性的时序关系。 控制装置液压地改变定时关系和升力特性中的至少一个。 润滑剂通道与控制装置连接，以将油供给由发动机部件在发动机内可滑动地彼此接触形成的机构。 提供辅助通道用于将油供给机构。 从油泵向所述辅助通道供应的油由发动机转速低于预定值时基于来自电控制器的指令而被致动的电磁阀限制。
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公开(公告)号：US6112711A
公开(公告)日：2000-09-05
申请号：US971577
申请日：1997-11-17
CPC分类号： F01L1/267
摘要： A valve performance control apparatus has a low speed cam, a high speed cam, and an intermediate speed cam. A rocker arm is arranged between the cams and a valve. The rocker arm contacts the low speed cam. A pair of cam followers are reciprocally supported in the rocker arm to contact the high speed and intermediate speed cams. Lock members are slidably received in bores (or grooves) of the rocker arm. The lock members, when positioned in an unlocked position, permit the free reciprocation of the associated cam followers with respect to the rocker arm, which causes the valve to be driven by the low speed cam. When locked, the lock members abut against the associated cam followers and lock the cam followers to the rocker arm, which causes the valve to be driven by the cam with the largest profile. The lock member has an abutment surface, which contacts and is pressed by the cam follower. The bore has a supporting wall for supporting the lock member opposite to the abutment surface when the abutment surface of the lock member is positioned in the lock position and is pressed by the cam follower. The lock member is not subjected to bending or shear, which improves the reliability of the apparatus.
摘要翻译： 阀门性能控制装置具有低速凸轮，高速凸轮和中速凸轮。 在凸轮和阀门之间布置有摇臂。 摇臂接触低速凸轮。 一对凸轮从动件在摇臂中相互支撑以接触高速和中速凸轮。 锁定构件可滑动地容纳在摇臂的孔（或凹槽）中。 当锁定构件位于解锁位置时，允许相关联的凸轮从动件相对于摇臂的自由往复运动，这导致阀被低速凸轮驱动。 当锁定时，锁定构件抵靠相关联的凸轮从动件并将凸轮从动件锁定到摇臂上，这导致阀被具有最大轮廓的凸轮驱动。 锁定构件具有接触并被凸轮从动件按压的邻接表面。 所述孔具有支撑壁，用于当所述锁定构件的邻接表面位于锁定位置并被所述凸轮从动件按压时支撑所述锁定构件与所述抵接表面相对。 锁定构件不受弯曲或剪切，这提高了装置的可靠性。
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公开(公告)号：US5803029A
公开(公告)日：1998-09-08
申请号：US927224
申请日：1997-09-10
CPC分类号： F01L1/267 , F01L1/34406 , F01L1/3442
摘要： There is disclosed a valve performance controller for an internal combustion engine. A camshaft is provided with a plurality of cams having different cam profiles. Changeover of the cams is performed through operation of a valve lift control mechanism. Also, a valve timing control mechanism is provided on the camshaft. The valve timing mechanism has a pulley, which is connected to a crankshaft of the engine via a timing belt. The pulley is connected to the camshaft via a ring gear. Through movement of the ring gear along the axis of the camshaft, the relative rotational phase between the pulley and the camshaft is changed. At least during cam changeover operation, oil is charged and retained within the hydraulic chamber located on both sides of the ring gear in the moving direction thereof. This structure reduces an impact which acts on the timing belt upon changeover of the cams.
摘要翻译： 公开了一种用于内燃机的阀性能控制器。 凸轮轴设置有具有不同凸轮轮廓的多个凸轮。 通过操作气门升程控制机构来进行凸轮的切换。 此外，在凸轮轴上设置有气门正时控制机构。 气门正时机构具有通过同步皮带连接到发动机的曲轴的滑轮。 滑轮通过齿圈连接到凸轮轴。 通过环形齿轮沿着凸轮轴的轴线移动，滑轮和凸轮轴之间的相对转动相位发生变化。 至少在凸轮切换操作期间，油被收容并保持在位于齿圈的两侧的液压室沿其移动方向。 这种结构减少了在转动凸轮时作用在同步皮带上的冲击。
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