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    • 2. 发明专利
    • Exhaust valve of internal combustion engine
    • 内燃机排气阀
    • JPS5928005A
    • 1984-02-14
    • JP13683482
    • 1982-08-07
    • Mitsubishi Heavy Ind Ltd
    • YAMAMOTO SHIGERUGOSHIMA TADAHACHITATEIWA MIKIO
    • F01L3/18
    • F01L3/18
    • PURPOSE:To effectively cool an exhaust valve and to prevent it from being corroded owing to high temperature, by circulating cooling water through the inside of a valve, by forming a cooling water chamber to cool a seat part in the inner part of a valve head, as well as to form an inlet and an outlet passages for cooling water in the valve stem of an exhaust valve. CONSTITUTION:A groove 9a of which end reaches a valve head 1b is provided in a v alve steam 1a, and a tube 8 is inserted into he groove 9a to form an inlet passage for cooling water. At the same time, an outlet passage 9 for cooling water is formed in the gap between the tube 8 and the groove 9a. On the other hand, an annular cooling water chamber 10 is formed close to a seat part 2, and cooling water discharge passages 11 and cooling water return passages 12 are formed radially, respectively, between the cooling water chamber 10 and the end part of a groove 9a, and vanes 13 and 14 are respectively provided to each inside wall of the passage. With such an arrangement, the cooling water is fed into the cooling water chamber 10 from the inlet passage 8, passing through the discharge passage 11, and then is flowed out of the chamber 10, passing through the return passage 12, and via the outlet passage 9. At this time, a pump is operated so that the vanes 13 and 14 can produce the water flow which have a directional characteristic, in order to increase the efficiency of heat conduction of the cooling water.
    • 目的:为了有效地冷却排气阀并防止其由于高温而被腐蚀,通过将冷却水循环通过阀的内部,通过形成冷却水室来冷却阀头内部的座部件 ,以及形成用于在排气阀的阀杆中冷却水的入口和出口通道。 构成:其一端到达阀头1b的槽9a设置在蒸汽1a中,并且管8插入槽9a中以形成用于冷却水的入口通道。 同时,在管8和槽9a之间的间隙中形成用于冷却水的出口通道9。 另一方面,环形冷却水室10靠近座部2形成,冷却水排出通道11和冷却水返回通道12分别形成在冷却水室10和冷却水室10的端部之间。 槽9a和叶片13和14分别设置在通道的每个内壁上。 通过这样的布置,冷却水从入口通道8进入冷却水室10,通过排放通道11,然后从室10中流出,通过返回通道12,并通过出口 此时,为了提高冷却水的热传导效率,操作泵使得叶片13和14能够产生具有方向特性的水流。
    • 6. 发明专利
    • Cooling device of poppet valve
    • 阀门的冷却装置
    • JPS6131608A
    • 1986-02-14
    • JP15327984
    • 1984-07-25
    • Ishikawajima Harima Heavy Ind Co Ltd
    • YONEKUBO YOSHIHARU
    • F01L3/14F01L3/08F01L3/12F01L3/18
    • F01L3/085F01L3/18
    • PURPOSE:To enhance the cooling efficiency and prolong the durability by providing a cooling passage in a poppet valve, connecting a piston to its top through a bellows pipe, and by installing a condenser having a cooling pipe on the top of a cylinder pipe enclosing the piston. CONSTITUTION:When a poppet valve 1 is exposed to combustion gas, the liquid refrigerant stored in a refrigerant chamber 26 formed in the bevel part 19 of the valve receives heat to evaporate and is sent along a cooling passage 2 to flow into a condenser 6 through a compressing piston 23, bellows pipe 3, piston 4 and a cylinder pipe 8. The evaporated refrigerant put in contact with a plurality of cooling pipes 5 in this condenser 6 is condensed to fall into the above-mentioned cooling chamber 26 again and cools the poppet valve 1. The bellows pipe 3 furnished at compressing piston 23 and the piston 4 installed at its tip are surrounded by a cylinder pipe 8 coupled to the condenser 6. Thus shock likely to be generated when the poppet valve 1 is switched can be damped.
    • 目的:通过在提升阀中提供冷却通道来提高冷却效率并延长耐用性,通过波纹管将活塞连接到顶部,并通过将冷却管安装在气缸管的顶部,将冷凝器安装在包围 活塞。 构成:当提升阀1暴露于燃烧气体时,储存在形成在阀的斜面部分19中的制冷剂室26中的液体制冷剂接收热量蒸发并沿着冷却通道2送入冷凝器6通过 压缩活塞23,波纹管3,活塞4和气缸管8.在该冷凝器6中与多个冷却管5接触的蒸发制冷剂被冷凝而再次落入上述冷却室26中, 提升阀1.设置在压缩活塞23处的波纹管3和安装在其顶端的活塞4被耦合到冷凝器6的气缸管8围绕。因此,当提升阀1切换时可能产生的冲击可以被阻尼 。