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公开(公告)号：US4714056A
公开(公告)日：1987-12-22
申请号：US760306
申请日：1985-07-29
申请人： Takumi Tottori , Kenji Oki , Kazuo Ooyama , Toshio Mizushima
发明人： Takumi Tottori , Kenji Oki , Kazuo Ooyama , Toshio Mizushima
CPC分类号： F02B27/06 , F02B2075/025 , Y02T10/146
摘要： A two-cycle engine includes a cylinder block having at least one pair of first and second cylinders, the first and second cylinders having a pair of first and second exhaust ports, respectively. A pair of first and second pistons are received respectively in the first and second cylinders for reciprocal movement therealong, each of the exhaust ports being selectively closed and opened by a respective one of the pistons during the movement thereof along a respective one of the cylinders. The first and second pistons are operatively connected to a crankshaft in such a manner that the first and second pistons are reciprocable 180.degree. out of phase along the respective cylinders. A final portion of the duration of opening of one of the exhaust ports overlaps an initial portion of the duration of opening of the other. An exhaust passage has a communicating portion communicating the first and second exhaust ports with each other adjacent thereto.
摘要翻译： 双冲程发动机包括具有至少一对第一和第二气缸的气缸体，第一和第二气缸分别具有一对第一和第二排气口。 一对第一和第二活塞分别容纳在第一和第二气缸中，用于在其上往复运动，每个排气口在相应的一个活塞的运动期间由相应的一个活塞选择性地关闭和打开。 第一和第二活塞以这样的方式可操作地连接到曲轴，使得第一和第二活塞沿相应的气缸往复运动180°异相。 一个排气口的打开持续时间的最后部分与另一个排气口的打开持续时间的初始部分重叠。 排气通道具有使第一和第二排气口彼此相邻连通的连通部。
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公开(公告)号：US4706617A
公开(公告)日：1987-11-17
申请号：US770056
申请日：1985-08-27
CPC分类号： F02D13/0284 , F02B2075/025 , Y02T10/18
摘要： A two-cycle engine includes a port timing control device including a port timing control valve which is mounted on a cylinder block and has a timing control surface. The control valve is movable in a plane substantially perpendicular to the axis of a cylinder between a closed position where the valve is disposed in an exhaust passage with the control surface closing the end portion of the exhaust port closer to a cylinder head and an open position where the valve is held out of the exhaust passage to open the end portion of the exhaust port. The control surface is of an arcuate concave shape and having a curvature substantially equal to that of an inner peripheral surface of the cylinder so as to be smoothly continuous with the inner peripheral surface of the cylinder.
摘要翻译： 双冲程发动机包括端口正时控制装置，其包括安装在气缸体上并具有定时控制表面的端口正时控制阀。 所述控制阀可在大致垂直于气缸轴线的平面中移动，所述平面位于所述阀设置在排气通道中的关闭位置与所述控制表面关闭所述排气口的靠近气缸盖的端部和打开位置之间 其中阀被排出排气通道以打开排气口的端部。 该控制面为弓形凹状，其曲率基本上与圆筒的内周面的曲率大致相等，与圆筒的内周面平滑地连续。
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公开(公告)号：US4103541A
公开(公告)日：1978-08-01
申请号：US848160
申请日：1977-11-03
申请人： Kozo Arai , Teizo Kotani , Toshio Mizushima
发明人： Kozo Arai , Teizo Kotani , Toshio Mizushima
摘要： A method of measurement of relaxation phenomena, in which input signals representing a relaxation phenomenon are recorded at equal intervals for logarithmic values of time.A measuring device for relaxation phenomena which comprises a logarithmic time pulse oscillator for producing pulse signals at equal intervals for logarithmic values of time, and a recorder for recording input signals representing a relaxation phenomenon converted into an electrical quantity, which operates to perform recording each time a pulse signal is produced.
摘要翻译： 松弛现象的测量方法，其中表示松弛现象的输入信号以相等的间隔被记录在时间的对数值上。
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公开(公告)号：US4711201A
公开(公告)日：1987-12-08
申请号：US828856
申请日：1986-02-12
申请人： Kazuo Ooyama , Kenji Ooki , Toshio Mizushima
发明人： Kazuo Ooyama , Kenji Ooki , Toshio Mizushima
CPC分类号： F02B27/04 , F02F1/22 , F16J1/16 , F02B2075/025 , F02B2075/1808 , F02B75/20 , Y02T10/146
摘要： A two-cycle engine includes an engine body having at least one cylinder, the cylinder having an exhaust port and at least one scavenge port disposed generally in opposed relation to the exhaust port. A piston is received in the cylinder for reciprocal movement therealong and having an outer peripheral surface for closing the exhaust and scavenge ports during the reciprocal movement thereof. The piston has a transverse bore extending therethrough with opposite ends of the transverse bore opening to the outer peripheral surface of the piston. The opposite ends of the transverse bore is capable of being brought into facing relation to the opposed exhaust and scavenge ports, respectively, during the reciprocal movement of the piston. A hollow wrist pin is received in the transverse bore and retained therein, one end of the wrist pin being closed.
摘要翻译： 双冲程发动机包括具有至少一个气缸的发动机主体，气缸具有排气口和至少一个通常与排气口相对设置的扫气口。 活塞被容纳在气缸中用于往复运动，并且具有用于在其往复运动期间关闭排气和清除口的外周表面。 活塞具有延伸穿过其中的横向孔，横向孔的相对端通向活塞的外周表面。 在活塞的往复运动期间，横向孔的相对端分别能够与相对的排气口和扫气口面对。 中空的腕针被容纳在横向孔中并保持在其中，腕针的一端被封闭。
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