Induction port arrangement for internal combustion engine having multiple inlet valves per combustion chamber
    2.
    发明公开
    Induction port arrangement for internal combustion engine having multiple inlet valves per combustion chamber 失效
    具有多台入口阀的内燃机的感应端口布置

    公开(公告)号:EP0178663A3

    公开(公告)日:1988-01-07

    申请号:EP85113193

    申请日:1985-10-17

    IPC分类号: F02B31/02 F02B29/00

    摘要: In order to prevent the electrodes of the spark plug from becomming wetted with droplets of liquid fuel during low temperature andior idling operation of the engine in a manner which deteriorates engine stability, the branches of a bifurcate intake passage which cooperates with a dual inlet valve arrangement are arranged to guide the unvaporized liquid fuel into the combustion chamber in a manner which obivates contact with the plug. In some embodiments a passage which is adapted to produce a swirl in the combustion chamber is arranged so that the fuel which passes therethrough (usually in the form of a film on the walls of branches) and which has a relatively large inertia as compared with the gaseous charge, enters the combustion chamber with a velocity which carries it along a flight path non-intersective with the plug electrodes. In another arrangement, the swirl generating passage is arranged to branch off from the side of the other one which is essentially coaxially aligned with the passage of the induction manifold. With this arrangement most of the liquid fuel tends to pass into the essentially coaxially aligned one under the influence of its own intena and thus reduces the amount of liquid fuel entering the swirl generating one.

    Induction port arrangement for internal combustion engine having multiple inlet valves per combustion chamber
    3.
    发明公开
    Induction port arrangement for internal combustion engine having multiple inlet valves per combustion chamber 失效
    用于与每燃烧室几个入口阀的内燃机的进气口系统。

    公开(公告)号:EP0178663A2

    公开(公告)日:1986-04-23

    申请号:EP85113193.8

    申请日:1985-10-17

    IPC分类号: F02B31/02 F02B29/00 F02F1/42

    摘要: In order to prevent the electrodes of the spark plug from becomming wetted with droplets of liquid fuel during low temperature andior idling operation of the engine in a manner which deteriorates engine stability, the branches of a bifurcate intake passage which cooperates with a dual inlet valve arrangement are arranged to guide the unvaporized liquid fuel into the combustion chamber in a manner which obivates contact with the plug. In some embodiments a passage which is adapted to produce a swirl in the combustion chamber is arranged so that the fuel which passes therethrough (usually in the form of a film on the walls of branches) and which has a relatively large inertia as compared with the gaseous charge, enters the combustion chamber with a velocity which carries it along a flight path non-intersective with the plug electrodes. In another arrangement, the swirl generating passage is arranged to branch off from the side of the other one which is essentially coaxially aligned with the passage of the induction manifold. With this arrangement most of the liquid fuel tends to pass into the essentially coaxially aligned one under the influence of its own intena and thus reduces the amount of liquid fuel entering the swirl generating one.