Two-stroke internal combustion engine
    1.
    发明授权
    Two-stroke internal combustion engine 失效
    二冲程内燃机

    公开(公告)号:US5040496A

    公开(公告)日:1991-08-20

    申请号:US440194

    申请日:1989-11-22

    摘要: In known two-stroke internal combustion engines with piston-controlled intake passages for the fresh charge and one or more exhaust passages for the exhaust gases, the actual direction of flow will deviate from the theoretical flow direction defined by the passage walls because of the influence exerted by the piston edge. The scavenge flow is deflected in the direction of the exhaust passage and the cylinder head, which will cause increased losses of fresh charge. This will considerably lower scavenge efficiency, and thus lead to a marked deterioration of engine performance, fuel consumption and exhaust emission. In the invention these disadvantages are avoided by aligning the flow guide vanes such that they form an angle, preferably of 90.degree., thus acting as a flow director.

    摘要翻译: 在具有活塞控制的新鲜进料通道和一个或多个废气排气通道的已知二冲程内燃机中,由于影响,实际的流动方向将偏离由通道壁限定的理论流动方向 由活塞边缘施加。 清扫流在排气通道和气缸盖的方向上偏转,这将导致新鲜进料的损失增加。 这将大大降低清扫效率,从而导致发动机性能,燃料消耗和废气排放明显恶化。 在本发明中,这些缺点通过对准导流叶片而避免,使得它们形成一个角度,优选为90°,从而用作导流器。

    Hydraulically operated valve with controlled lift
    2.
    发明授权
    Hydraulically operated valve with controlled lift 失效
    液压操纵阀,带电梯

    公开(公告)号:US5048489A

    公开(公告)日:1991-09-17

    申请号:US507453

    申请日:1990-04-11

    摘要: A hydraulically operated valve with controlled lift, in particular a fuel/gas injection valve for internal combustion engines, has a stop face fixed on the valve stem. For accurate control of the opening of the valve a stop cam is provided, which is drivn mechanically via a friction clutch, and which cooperates with the stop face. By rotating the cam through a predetermined angle the maximum valve lift will be obtained. The cam may be brought into contact with the stop face even in the closed position of the valve.

    摘要翻译: 具有受控升程的液压操作阀,特别是用于内燃机的燃料/气体喷射阀,具有固定在阀杆上的止动面。 为了精确地控制阀的打开,设置有通过摩擦离合器机械地驱动并与止动面配合的止动凸轮。 通过使凸轮旋转预定角度,将获得最大的气门升程。 即使在阀的关闭位置,凸轮也可以与止动面接触。

    Reciprocating piston engine construction, particularly multi-part
cylinder and crankshaft connection arrangement
    3.
    发明授权
    Reciprocating piston engine construction, particularly multi-part cylinder and crankshaft connection arrangement 失效
    往复式活塞发动机结构,特别是多部分气缸和曲轴连接装置

    公开(公告)号:US4013058A

    公开(公告)日:1977-03-22

    申请号:US521695

    申请日:1974-11-07

    摘要: To connect two machine elements which are dynamically loaded by means of tension bolts, the bolts are carried through bores in the machine elements which are somewhat wider than the diameter of the bolts to form a cylindrical chamber, leaving a cylindrical gap surrounding the bolt; the chamber is entirely filled with a damping substance, such as a foamed material, or lubricating oil, particularly pressurized lubricating oil or the like. Preferably, the gap is about 2 to 8 percent of the diameter of the tension bolt, has a length at least three times the diameter of the tension bolt, and is located approximately centered between the points of force application on the tension bolt, to dampen transfer of vibrations, but permit slow bending, below the yield point of the bolt, within the chamber.

    摘要翻译: 为了连接通过拉伸螺栓动态加载的两个机器元件,螺栓穿过机器元件中的孔,其比螺栓的直径稍宽,以形成圆柱形腔,留下围绕螺栓的圆柱形间隙; 该室完全填充有诸如发泡材料的阻尼物质,或润滑油,特别是加压的润滑油等。 优选地,间隙是拉伸螺栓直径的约2%至8%,具有至少三倍于拉伸螺栓直径的长度,并且位于拉伸螺栓上的施加点之间的大致中心位置,以阻尼 在室内传递振动,但允许缓慢弯曲,低于螺栓的屈服点。

    Cylinder head of an internal combustion engine
    4.
    发明授权
    Cylinder head of an internal combustion engine 失效
    内燃机气缸盖

    公开(公告)号:US5150672A

    公开(公告)日:1992-09-29

    申请号:US846045

    申请日:1992-03-05

    摘要: Cylinder head of an internal combustion engine with more than two valves in overhead arrangement for each cylinder, which are actuated via rocker arms, each rocker arm being individually supported on the cylinder head by means of a bridge. A compact design is achieved by providing a valve bridge for actuation of every two valves of identical function, which valve bridge is attached to the bridge. At least one of the two rocker arms per cylinder acts on a valve bridge supported by the bridge, the pivots of the rocker arms having different distances from the center plane of the cylinder.

    摘要翻译: 内燃机的气缸盖,其具有两个以上的阀门,每个气缸的顶部布置用于每个气缸,其通过摇臂被致动,每个摇臂通过桥单独地支撑在气缸盖上。 通过提供用于致动相同功能的每两个阀的阀桥来实现紧凑的设计,该阀桥连接到桥上。 每个气缸的两个摇臂中的至少一个作用在由桥支撑的阀桥上,摇臂的枢轴具有与气缸的中心平面不同的距离。

    Exhaust system for two-stroke cycle engines
    5.
    发明授权
    Exhaust system for two-stroke cycle engines 失效
    二冲程发动机排气系统

    公开(公告)号:US5044159A

    公开(公告)日:1991-09-03

    申请号:US496639

    申请日:1990-03-21

    IPC分类号: F02B27/00 F01N3/24 F02B27/04

    CPC分类号: F02B27/04 Y02T10/146

    摘要: In an exhaust system for two-stroke cycle engines, comprising an exhaust pipe whose front end, which is characterised by a constant cross-section, is followed by two or more conical sections, these conical sections are configured as diffusers, which are connected to the front end of the exhaust pipe with its constant cross-section by means of branch pipes of different length, and which open into a common exhaust header at the other end, which header in turn is connected to the exhaust tail pipe comprising a catalytic converter and/or a silencer. This arrangement has the effect that a pressure wave coming from the cylinder is twice reflected as a suction wave arriving at the still open exhaust port at different times due to the difference in pipe length. In this manner the effective duration of the suction wave is prolonged over that of comparable exhaust systems of a known kind.

    摘要翻译: 在用于二冲程循环发动机的排气系统中,包括排气管,其前端的特征在于恒定的横截面,后面是两个或更多个锥形部分,这些锥形部分被构造为扩散器,其连接到 排气管的前端通过不同长度的分支管具有恒定的横截面,并且在另一端开口到共同的排气集管,该集管又连接到排气尾管,该排气尾管包括催化转化器 和/或消音器。 这种布置具有这样的效果:由于管长度的差异,来自气缸的压力波作为从不同时间到达静止排气口的吸力波反射两次。 以这种方式,吸入波的有效持续时间比已知类型的排气系统的有效持续时间延长。

    Two-stroke internal combustion engine
    7.
    发明授权
    Two-stroke internal combustion engine 失效
    二冲程内燃机

    公开(公告)号:US5279266A

    公开(公告)日:1994-01-18

    申请号:US4269

    申请日:1993-01-14

    IPC分类号: F02B27/04 F02B75/02 F02F1/22

    摘要: In a two-stroke internal combustion engine with at least one cylinder opeg into an exhaust passage with a diffuser-type flare whose shape is determined mainly by that of the lower contour, an optimum flow pattern in the exhaust passage is obtained by providing the exhaust passage with a nozzle-like throat in the immediate vicinity of the cylinder, which is formed by the lower contour and is followed by the diffuser-type flare, either immediately or at a distance.

    摘要翻译: 具有一个或多个气缸(1)的二冲程内燃机,排气口(3)从中排出,其具有特别是通过底部轮廓(3b)的成形而形成的扩散器状膨胀。 实现排气口(3)中的最佳流动,即在汽缸(1)之后的排气口(3)具有通过底部轮廓(3b)的成形而形成的喷嘴状限制,并且 扩散器样扩展直接或间隔地连接。