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公开(公告)号：US5080055A
公开(公告)日：1992-01-14
申请号：US506987
申请日：1990-04-10
CPC分类号： F02D13/0211 , F01L1/08 , F01L13/0042 , F02D13/0261 , Y02T10/18
摘要： A schedule which is logged in terms of engine speed and which is divided into a number of engine operational zones, is used to determine the amount of axial displacement should be induced in a cam shaft on which a specially shaped cam is mounted. The cam has a first section which configured to simultaneously induce a change in valve lift and the valve closure timing, and a second section which maintains the valve closure timing at essentially a fixed value and induces a further increase in valve lift.
摘要翻译： 根据发动机转速记录并被划分为多个发动机操作区域的时间表用于确定在其上安装有特殊形状的凸轮的凸轮轴中应引起的轴向位移量。 凸轮具有构造成同时引起气门升程和阀关闭正时变化的第一部分，以及将阀关闭正时保持在基本上固定值并引起气门升程进一步增加的第二部分。
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公开(公告)号：US5048474A
公开(公告)日：1991-09-17
申请号：US479621
申请日：1990-02-13
CPC分类号： F01L1/30 , F01L1/18 , F01L13/0042 , Y10T74/2101
摘要： In a valve train for an I.C. engine, a cam shaft has cams formed with compound curvatures which allow the valve timing to be altered while the engine is operating, to suit the engine driving conditions by shifting the cam shaft along its axis. To reduce the force necessary to shift the cam shaft along its axis the valve closure springs are replaced by closure cams. In some embodiments pivoting arrangements comprising a pair of ball and socket joints are provided to eliminate lateral sway of the rocker arms allowing precise adjustment of the valve timing when the cam shaft is shifted along its axis. In other embodiments the rocker arms are journalled on a rocker shaft provided with stops for preventing lateral sway. In some embodiments the closure rocker arms have cupped ends in which either the valve stem retainer or the valve stem seal is received.
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3.发明授权
公开(公告)号：US4944256A
公开(公告)日：1990-07-31
申请号：US394091
申请日：1989-08-15
IPC分类号： F01L1/30
CPC分类号： F01L1/30
摘要： The first of a pair scissor like rocker arms is pivotally mounted at one end either by way of an adjust screw or a hydraulic lash adjuster and arangement to engage the top of a valve stem at the other. A cam follower which is located between the first and second ends engages a lift cam. The second of the rocker arms is pivotally mounted on the first one and has a closure cam follower at one end and engages the lower face of a retainer which secured to the top of the valve stem by way of a ring type collet. The shaft on which the second rocker arm is pivotally mounted can be provided with eccentric portions which enable the second rocker arm valve clearances to be adjusted separately from the adjustment of the first rocker arm clearance. The arrangement can be adapted to lift and close two valves.
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4.发明授权Induction port arrangement for internal combustion engine having multiple inlet valves per combustion chamber 失效用于每个燃烧室具有多个入口阀的内燃机的感应端口装置
公开(公告)号：US4873953A
公开(公告)日：1989-10-17
申请号：US258048
申请日：1988-10-17
CPC分类号： F02B31/00 , F02B17/00 , F02F1/4214 , F02B1/04 , F02B2031/006 , F02D2200/0606 , F02F2001/245 , Y02T10/146
摘要： In order to prevent the electrodes of the spark plug from becoming wetted with droplets of liquid fuel during low temperature and/or idling operation of the engine in a manner which deteriorates engine stability, the branches of a bifurcate intake passage which cooperates with a dual inlet valve arrangement are arranged to guide the unvaporized liquid fuel into the combustion chamber in a manner which obivates contact with the plug. In some embodiments a passage which is adapted to produce a swirl in the combustion chamber is arranged so that the fuel which passes therethrough (usually in the form of a film on the walls of branches) and which has a relatively large inertia as compared with the gaseous charge, enters the combustion chamber with a velocity which carries it along a flight path non-intersective with the plug electrodes. In another arrangement, the swirl generating passage is arranged to branch off from the side of the other one which is essentially coaxially aligned with the passage of the induction manifold. With this arrangement most of the liquid fuel tends to pass into the essentially coaxially aligned one under the influence of its own inertia and thus reduces the amount of liquid fuel entering the swirl generating one.
摘要翻译： 为了防止火花塞的电极在发动机的低温和/或空转操作期间以液体燃料的液滴的方式变得发动机的稳定性降低的情况下，与双入口配合的分叉进气通道的分支 阀装置被布置成以可能与插头接触的方式将未蒸发的液体燃料引导到燃烧室中。 在一些实施例中，适于在燃烧室中产生涡流的通道被布置成使得通过其中的燃料（通常为分支壁上的膜的形式），并且具有相对较大的惯性 气态电荷以沿着与插头电极不相交的飞行路径携带它的速度进入燃烧室。 在另一种布置中，涡流产生通道布置成从另一个的侧面分支，该另一个基本上与进气歧管的通道同轴对准。 利用这种布置，大部分液体燃料在其自身惯性的影响下倾向于进入基本上同轴对齐的液体燃料，从而减少进入产生涡流的液体燃料的量。
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公开(公告)号：US5038732A
公开(公告)日：1991-08-13
申请号：US575895
申请日：1990-08-31
CPC分类号： F01L1/053 , F01L1/26 , F02F1/4214 , F01L2001/0537 , F02B1/04 , F02B2275/02 , F02B2275/18 , F02F2001/245
摘要： A cylinder head of a DOHC internal combustion engine has intake and exhaust ports of a siamese shape. A pivot for a rocker arm of the end pivot type is installed in a pivot installation hole which is formed at a nearer point from each cylinder than the branched point of each of the intake and exhaust ports. With this arrangement, since the pivot installation hole can have a sufficient depth without deforming the shape of the intake port, each swinging end of the rocker arm for intake valves and that for the exhaust valves can be disposed opposite to each other. Therefore, the engine is improved with respect to its performances and size.
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6.发明授权
公开(公告)号：US4928650A
公开(公告)日：1990-05-29
申请号：US329846
申请日：1989-05-28
摘要： A first rocker arm is used to induce valve lift while a second one used to move the valve back to closed position. The rocker arms are arranged to engage the valve top or retainer surfaces at locations offset from the axis of the valve and to induce the valve to rotate during the lift and closing operations. Springs, hydraulic lifters or double adjust screw type arrangements are used to control clearances.
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公开(公告)号：US4881497A
公开(公告)日：1989-11-21
申请号：US197886
申请日：1988-05-24
申请人： Yutaka Matayoshi , Shigeru Kamegaya
发明人： Yutaka Matayoshi , Shigeru Kamegaya
CPC分类号： F01L1/185 , F01L1/2405 , F01M9/10 , F01L2105/00 , F01L2810/02 , F02B2275/20
摘要： A valve operating system for an overhead camshaft type automotive internal combustion engine. The valve operating system is comprised of a swing arm swingable upon rotation of a camshaft located over the swing arm. The swinging motion of the swing arm causes the reciprocal motion of intake or exhaust valve which is connected to one end section of the swing arm. The other end section of the swing arm is pivotally supported by the plunger of a hydraulic lifter in such a manner that the swing arm end section is in fitting contact with the tip end section of the hydraulic lifter plunger. A clearance is formed between the swing arm end section and the plunger tip end section and filled with lubricating oil which is supplied through an oil supply passage formed in the plunger of the hydraulic lifter, thereby accomplishing sufficient and efficient lubrication at the contacting and sliding surface between the swing arm and the hydraulic lifter plunger.
摘要翻译： 一种用于顶置凸轮轴型汽车内燃机的阀操作系统。 阀操作系统包括摆动臂，该摆臂可在位于摆臂上方的凸轮轴旋转时摆动。 摆臂的摆动运动导致与摆臂的一个端部连接的进气门或排气门的往复运动。 摆臂的另一端部由液压升降器的柱塞可枢转地支撑，使得摆臂端部与液压举升器柱塞的前端部配合接触。 在摆臂端部和柱塞前端部之间形成有间隙，并且填充有通过形成在液压升降器的柱塞中的供油路供给的润滑油，从而在接触滑动面上实现充分且有效的润滑 在摆臂和液压升降器柱塞之间。
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公开(公告)号：US4825822A
公开(公告)日：1989-05-02
申请号：US900844
申请日：1986-08-27
CPC分类号： F01L1/2405 , F01L1/185 , F01L1/26 , F01L2105/02 , F02B1/04 , F02F1/4214 , F02F2001/245
摘要： In order to reduce the mass of a rocker arm and simultaneously simplify the adjustment of the valve clearances the rocker arm is pivotally mounted on a universal joint so that it may tilt and establish a three point contact between the universal joint and the tops of the two valve stems. By incorporating a hydraulic lifter in the universal joint arrangement constant lash free automatic zero clearance adjustment is rendered possible. Utilizing a roller as a cam follower permits a reduction in valve train friction loss. To prevent the rocker arm from meandering retaining flanges are provided on the rocker arm which envelope the tops of the valve stems.
摘要翻译： 为了减轻摇臂的质量，同时简化阀门间隙的调整，摇臂可枢转地安装在万向接头上，使其可以倾斜并建立万向接头和两者的顶部之间的三点接触 阀杆。 通过在万向节布置中安装液压升降器，可以实现无间隙的无间隙自动零间隙调节。 使用滚子作为凸轮从动件允许减少阀门系摩擦损失。 为了防止在摇杆上提供摇臂臂曲折的固定法兰，其包围阀杆的顶部。
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公开(公告)号：US4791893A
公开(公告)日：1988-12-20
申请号：US71242
申请日：1987-07-09
CPC分类号： F01L1/185
摘要： A two-fingered cam follower adapted to operate two valves in unison has sliding faces which are arranged in parallel with the plane in which the cam follower swings being driven by a cam. The cam follower is pivotally mounted on a hydraulic lash adjuster which is in turn mounted on a cylinder head. The cylinder head is provided with a pair of guide arms which are arranged so as to interpose therebetween the cam follower. The guide arms have on the inboard sides thereof guiding faces respectively matched with the sliding faces of the cam follower in such a manner that a clearance is provided between the matched sliding and guiding faces. By setting the clearance in such a manner as to satisfy a certain relation, the sliding and guiding faces can be held out of contact with each other during normal operating condition of the engine.
摘要翻译： 适合于同时操作两个阀的双指凸轮随动件具有平行于平面的滑动面，凸轮从动件由凸轮驱动摆动。 凸轮从动件枢转地安装在液压间隙调节器上，液压间隙调节器又安装在气缸盖上。 气缸盖设置有一对引导臂，其布置成将凸轮随动件插入其间。 引导臂在其内侧具有分别与凸轮从动件的滑动面相配合的引导面，使得在匹配的滑动和引导面之间设置间隙。 通过以满足一定关系的方式设置间隙，在发动机的正常运行状态下，滑动导向面可以彼此不接触。
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公开(公告)号：US07188589B2
公开(公告)日：2007-03-13
申请号：US11187235
申请日：2005-07-22
申请人： Akira Tayama , Hirofumi Tsuchida , Koji Hiraya , Yutaka Matayoshi
发明人： Akira Tayama , Hirofumi Tsuchida , Koji Hiraya , Yutaka Matayoshi
CPC分类号： F02B23/101 , Y02T10/125
摘要： In a direct injection internal combustion engine, a fuel injection valve and a spark plug of adjacent cylinders are inclined at different angles from each other in directions perpendicular to a cylinder arrangement direction in which the cylinders are arranged. Besides, the fuel injection valve and the spark plug of at least one of the cylinders are inclined at different angles from each other in directions parallel to the cylinder arrangement direction. A cooling channel is provided between the fuel injection valve and the spark plug of the at least one of the cylinders.
摘要翻译： 在直喷式内燃机中，相邻气缸的燃料喷射阀和火花塞在与配置气缸的气缸配置方向垂直的方向上以不同的角度倾斜。 此外，至少一个气缸的燃料喷射阀和火花塞在与气缸排列方向平行的方向上以不同的角度倾斜。 在燃料喷射阀和至少一个气缸的火花塞之间设置冷却通道。
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