公开(公告)号：US5437251A

公开(公告)日：1995-08-01

申请号：US243408

申请日：1994-05-16

申请人： Richard R. Anglim ,  Hazel L. Halfman

发明人： Richard R. Anglim ,  Hazel L. Halfman

IPC分类号： F01L11/00 ,  F02B3/06 ,  F02B75/02

CPC分类号： F01L11/00 ,  F02B2075/025 ,  F02B3/06

摘要： A variable-compression internal-combustion engine has a two-stage cylinder with a relatively large diameter at a first-stage, supercharge end, which is also a power-takeoff end, than at a second-stage, combustion end of the cylinder. Intake air is drawn into the first-stage, supercharge end of the cylinder by a matching larger-diameter, first-stage, supercharge end of a two-stage piston during a compression stroke of a two-stroke cycle of the two-stage piston. During a power stroke, intake air is directed into and contained under pressure in an air-transfer passage that is positioned circumferentially and externally around an outside periphery of a bottom end of the first-stage cylinder. At a bottom end of the power stroke, intake air is directed from the air-transfer passage into a transfer conveyance extended from the supercharge end to tile second-stage head of the two-stage piston where the intake air is venturi-accelerated to the second-stage head of the two-stage cylinder while exhaust escapes through exhaust ports at a bottom of the second stage of the two-stage cylinder. Cylinder heads can be variable in distance from top dead center of piston travel to regulate compression ratio as desired for different operating conditions. Reciporcative travel of a plurality of the two-stage pistons is convened to rotary motion preferably by a pinch plate in working relationship to an angled cam plate. The pinch plate cam-drives the angled cam plate with a large contact surface for long wear life. Other rotational means can be employed.

摘要翻译： 可变压缩内燃机具有比在气缸的第二级燃烧端的第一级增压端（也是动力输出端）具有较大直径的两级气缸。 在二级活塞的两冲程循环的压缩冲程期间，进气通过两级活塞的匹配的较大直径的第一级增压端被吸入到气缸的第一级增压端 。 在动力冲程期间，进气被引导到压力下并被导向在第一级缸的底端的外周周围和外侧的空气传送通道中。 在动力冲程的底端，吸入空气从空气传送通道被引导到从增压端延伸到两级活塞的瓦片第二级头部的传送输送器，其中进气被文丘里加速到 二级气缸的第二级头部，同时排气通过两级气缸第二级底部的排气口逸出。 气缸盖头可以根据活塞行程的上止点距离变化，以根据不同的操作条件调节压缩比。 多个两级活塞的吸收行程优选地通过与成角度的凸轮板的工作关系的夹紧板旋转运动。 夹板凸轮驱动倾斜的凸轮板具有大的接触表面，从而具有较长的磨损寿命。 可以采用其他旋转装置。