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    • 3. 发明授权
    • Rotary valve device for internal combustion engines
    • 内燃机用旋转阀装置
    • US4858577A
    • 1989-08-22
    • US207030
    • 1988-06-14
    • Masaaki MatsuuraMitsuru IshikawaMasaharu NakamoriMasahiro Kuroki
    • Masaaki MatsuuraMitsuru IshikawaMasaharu NakamoriMasahiro Kuroki
    • F01L7/10F02B75/02
    • F01L7/10F01L2113/00F02B2075/027
    • A rotary valve system for an internal combustion engine having ball-type valves with through bores. The valves are driven by rocking cam mechanisms within passageways for controlling communication through intake and exhaust passages. Valve seats are arranged to either side of the valves such that sealing thereof may occur. In one embodiment, side cut portions are employed to allow either intake or exhaust gases to flow around the valve body as well as through the through bore when the valve is in the opening or closing orientation. In another embodiment, a through bore of square cross section is provided to increase flow during opening and closing thereof. In a third embodiment, a bias mechanism is employed to provide torque on the valves and drive mechanism to eliminate clearances such that impact between components will be reduced or eliminated.
    • 一种用于内燃机的旋转阀系统,其具有带通孔的球形阀。 阀门由通道内的摆动凸轮机构驱动,用于通过进气和排气通道控制连通。 阀座布置在阀的两侧,使得可能发生密封。 在一个实施例中,当阀处于打开或关闭方向时,侧切部分用于允许进气或废气围绕阀体以及通过通孔流动。 在另一个实施例中,提供了一个方形横截面的通孔,以增加其打开和关闭期间的流量。 在第三实施例中,使用偏置机构来提供阀和驱动机构上的扭矩以消除间隙,从而减少或消除部件之间的冲击。
    • 4. 发明授权
    • Internal combustion engine
    • 内燃机
    • US4741299A
    • 1988-05-03
    • US821166
    • 1986-01-21
    • Masaaki MatsuuraMasaharu NakamoriShoichi HondaYoichi IshidaTetsuya Nakanishi
    • Masaaki MatsuuraMasaharu NakamoriShoichi HondaYoichi IshidaTetsuya Nakanishi
    • F01L1/02F16H7/08F16H7/18F01L1/04
    • F01L1/02F01L1/022F16H7/0848F16H7/18F01L2001/0537F02B2275/08F02B2275/18F16H2007/0806F16H2007/0812F16H2007/0859F16H2007/0872
    • An internal combustion engine includes an engine body having a chamber and an endless transmission member extended around and operatively engaged with a crankshaft and a cam shaft to transmit a rotation of the crankshaft to the cam shaft, the endless transmission member being movable along a closed path of travel in the chamber. A hollow mounting member is disposed in the chamber and has an upper open end and a lower tubular portion. The mounting member is fixed to the engine body through fastening elements secured to an upper portion of a peripheral wall of the mounting member. A tensioner device is disposed in the chamber and includes a tensioner member movably mounted on the engine body, and a hydraulic lock mechanism including a hollow cylinder and a plunger slidably received in the cylinder to define a hydraulic chamber in the cylinder. The cylinder is received in the hollow mounting member and snugly fitted in the lower tubular portion of the mounting member against movement. The mounting member and the cylinder defines an oil reservoir for holding oil therein, the hydraulic lock mechanism having passage through which the oil reservoir is in fluid communication with the hydraulic chamber. A check valve is connected to the passage for blocking it to prevent the plunger from moving in one direction along the cylinder. The plunger is movable in the other direction and operatively engaged with the tensioner member to hold it in sliding contact with the cam chain.
    • 内燃机包括具有腔室和环形传动构件的发动机主体,环形传动构件围绕曲轴和凸轮轴可操作地接合,以将曲轴的旋转传递到凸轮轴,环形传动构件可沿封闭路径移动 在房间里的旅行。 中空的安装构件设置在腔室中并且具有上开口端和下管状部分。 安装构件通过固定到安装构件的周壁的上部的紧固元件固定到发动机主体。 张紧器装置设置在腔室中,并且包括可移动地安装在发动机主体上的张紧器构件和液压锁定机构,该液压锁定机构包括中空圆筒和可滑动地容纳在气缸中的柱塞,以在气缸中限定液压室。 气缸被容纳在中空安装构件中并且紧密地装配在安装构件的下部管状部分中以防止运动。 安装构件和气缸限定了用于将油保持在其中的储油器,液压锁定机构具有通道,储油器通过该通道与液压室流体连通。 止回阀连接到通道以阻止其阻止柱塞沿着气缸在一个方向上移动。 柱塞可沿另一方向移动并且与张紧器构件可操作地接合以保持其与凸轮链滑动接触。