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    • 4. 发明专利
    • Four-cycle engine
    • 四循环发动机
    • JPS61104111A
    • 1986-05-22
    • JP22607284
    • 1984-10-27
    • Yamaha Motor Co Ltd
    • ISAKA YOSHIHARU
    • F01L1/28F01L5/04
    • F01L5/04F01L1/28F02B2275/22
    • PURPOSE:To simplify the structure around a valve by opening/closing a single port opened to a combustion chamber with a poppet valve and switching and communicating intake/discharge passages to the said port with the bulged section of a valve stem. CONSTITUTION:A port 9 opened to a combustion chamber 7 via a single opening is formed, and a discharge passage 11 and an intake passage 10 are opened at the upper section and lower section of this port 9 respectively. A check valve 14 is provided on the discharge passage 11, and a side passage 12 is formed on the port 9. This opening is controlled to be opened/closed by a poppet valve 8A, and the intake passage 10 and discharge passage 11 opened to the port 9 are controlled to be opened/closed by a bulged section 8B formed on a valve stem. The poppet valve 8A is opened at a suction stroke, the discharge passage 11 is closed by the bulged section 8B, and air is sucked from the intake passage 10 through the side passage 12. The intake passage 10 is closed by the bulged section 8B at a discharge stroke.
    • 目的:通过打开/关闭通过提升阀打开到燃烧室的单个端口来简化阀门周围的结构,并通过阀杆的凸出部分将进/出气通道切换和连通到所述端口。 构成:形成通过单个开口向燃烧室7开口的端口9,分别在该端口9的上部和下部开口排出通道11和进气通道10。 止回阀14设置在排出通道11上,侧通道12形成在端口9上。该开口被提升阀8A控制打开/关闭,进气通道10和排放通道11打开 端口9被形成在阀杆上的凸起部分8B控制为打开/关闭。 提升阀8A在吸入行程打开,排出通道11被膨胀部分8B关闭,并且空气通过侧通道12从进气通道10吸入。进气通道10被膨胀部分8B关闭 排放冲程。
    • 7. 发明专利
    • Four-cycle internal-combustion engine of one-valve type
    • 单阀四冲程内燃机
    • JPS6128707A
    • 1986-02-08
    • JP14853184
    • 1984-07-19
    • Mitsubishi Heavy Ind Ltd
    • YAMAMOTO SHIGERUOYAMADA TETSUYATSUNEYA REIJIROMORITA HIDEO
    • F01L1/28F01L1/44F02B29/00
    • F01L1/443F01L1/28
    • PURPOSE:To thermally deform a valve seat part in an axis of symmetry and prevent a blow-by in the seat part, by providing a unified valve used in common for intake and exhaust in the center of a cylinder cover while a control valve respectively in intake and exhaust passages communicating with the unified valve. CONSTITUTION:A port used in common for intake and exhaust is formed in the center of a cylinder cover, being opened and closed by a unified valve 2. This port communicates with an exhaust passage 8, exhaust pipe 6, intake passage 9 and an intake pipe 7. The exhaust passage 8 and the intake passage 9 respectively provide an exhaust control valve 4 and an intake control valve 5. The intake control valve 5 and the unified valve 2 are opened by closing the exhaust control valve 4 in an intake stroke, while the exhaust control valve 4 and the unified valve 2 are opened by closing the intake control valve 5 in an exhaust stroke. The unified valve 2, thermally deforming its seat part in an axis of symmetry, prevents a blow-by in the seat part.
    • 目的:为了使阀座部件以对称轴热变形,并防止在座椅部件中发生窜气,通过在气缸盖的中心提供用于进气和排气的共同阀门,同时分别设置控制阀 进气和排气通道与统一阀连通。 构成:在气缸盖的中心形成用于进气和排气的端口,由统一的阀2打开和关闭。该端口与排气通道8,排气管6,进气通道9和进气口 排气通道8和进气通道9分别设置有排气控制阀4和进气控制阀5.通过在进气冲程中关闭排气控制阀4来打开进气控制阀5和统一阀2, 同时通过在排气冲程中关闭进气控制阀5来打开排气控制阀4和统一阀2。 统一阀2使座椅部件以对称轴热变形,防止了座椅部件的窜气。