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1. 发明公开

EP2789816A1 HOLLOW POPPET VALVE 有权转让
标题翻译：霍尔斯HUBVENTIL
公开(公告)号：EP2789816A1
公开(公告)日：2014-10-15
申请号：EP12885992.3
申请日：2012-10-02
申请人： Nittan Valve Co., Ltd.
发明人： ONUMA Hiroki , HASEGAWA Jin
IPC分类号： F01L3/20 , F01L3/14
CPC分类号： F16K49/007 , B21K1/22 , B23P15/002 , F01L3/14 , F01L3/16 , F01L3/20 , F16K1/12 , F16K1/32 , Y10T137/6579
摘要： To provide a hollow poppet valve having an improved heat reduction effect. In a hollow poppet valve (10) having a valve head (14) and a stem (12) integral with the valve head (14), the hollow poppet valve (10) is formed with an internal cavity S that extends in the valve head (14) and the stem (12). The internal cavity S is charged with a coolant (19) and an inert gas. The internal cavity S has a generally disk-shape internal cavity S1 and an internal stem cavity S2 formed in the stem (12) and connected to the internal valve head cavity S1 at a right angle. During a reciprocal motion of the valve (10), a vertical convective flow of coolant (19) along the axis L of the valve (10) is established at least in the internal valve head cavity S1, thereby enhancing its heat reduction effect.
摘要翻译：提供具有改善的减热效果的中空提升阀。在具有阀头（14）和与阀头（14）成一体的杆（12）的中空提升阀（10）中，中空提升阀（10）形成有内腔S，其在阀头（14）和杆（12）。内部空腔S装有冷却剂（19）和惰性气体。内腔S具有大致圆盘形的内腔S1和形成在杆（12）中的内部杆腔S2，并且以直角连接到内部阀头腔S1。在阀（10）的往复运动期间，至少在内部阀头腔S1中建立沿着阀（10）的轴线L的冷却剂（19）的垂直对流，从而增强其减热效果。

2. 发明授权

EP2789816B1 HOLLOW POPPET VALVE 有权转让
标题翻译：空心举阀
公开(公告)号：EP2789816B1
公开(公告)日：2017-04-05
申请号：EP12885992.3
申请日：2012-10-02
申请人： Nittan Valve Co., Ltd.
发明人： ONUMA Hiroki , HASEGAWA Jin
IPC分类号： F01L3/14
CPC分类号： F16K49/007 , B21K1/22 , B23P15/002 , F01L3/14 , F01L3/16 , F01L3/20 , F16K1/12 , F16K1/32 , Y10T137/6579
摘要： To provide a hollow poppet valve having an improved heat reduction effect. In a hollow poppet valve (10) having a valve head (14) and a stem (12) integral with the valve head (14), the hollow poppet valve (10) is formed with an internal cavity S that extends in the valve head (14) and the stem (12). The internal cavity S is charged with a coolant (19) and an inert gas. The internal cavity S has a generally disk-shape internal cavity S1 and an internal stem cavity S2 formed in the stem (12) and connected to the internal valve head cavity S1 at a right angle. During a reciprocal motion of the valve (10), a vertical convective flow of coolant (19) along the axis L of the valve (10) is established at least in the internal valve head cavity S1, thereby enhancing its heat reduction effect.

3. 发明公开

EP2905436A1 HOLLOW POPPET VALVE 有权转让
标题翻译：霍尔斯HUBVENTIL
公开(公告)号：EP2905436A1
公开(公告)日：2015-08-12
申请号：EP13843227.3
申请日：2013-03-26
申请人： Nittan Valve Co., Ltd.
发明人： HOMMA Koichi , ONUMA Hiroki , HASEGAWA Jin
IPC分类号： F01L3/20 , F01L3/14
CPC分类号： F16K49/007 , B21K1/22 , B23P15/002 , F01L3/14 , F01L3/16 , F01L3/20 , F16K1/12 , F16K1/32 , Y10T137/6579
摘要： In a hollow poppet valve formed with a valve head cavity in its valve head, a bottom fringe portion of the seat head cavity is extended radially outwardly so as to provide a cavity near a valve face of the valve, thereby enhancing the heat reducing function of the valve without losing its durability. A coolant (19) is loaded, together with an inert gas, in an internal cavity (S) of a hollow poppet valve (10). The internal cavity (S) has a diametrically larger valve head cavity (S1) communicated with a diametrically smaller stem cavity (S2) formed in the valve stem (12). A bottom fringe portion (S1a) of the valve head cavity (S1) is extended radially outwardly to form a flange shape cavity, which not only permits storage of an incremental amount of coolant, but also shortens a heat transfer path between the coolant (19) and a valve seat of the valve, thereby enhancing the heat reduction property of the valve head (14). This radially extended flange shape cavity (S1a) helps avoid thinning the entire valve head, and will not affect durability of the valve (10).
摘要翻译：在其阀头中形成有阀头腔的中空提升阀中，座头腔的底部边缘部分径向向外延伸，以便在阀的阀面附近提供一个空腔，从而提高了减压功能阀门不失其耐用性。冷却剂（19）与惰性气体一起装入中空提升阀（10）的内腔（S）中。内腔（S）具有径向较大的阀头腔（S1），其与形成在阀杆（12）中的直径较小的杆腔（S2）连通。阀头腔（S1）的底部边缘部分（S1a）径向向外延伸以形成法兰形状的空腔，其不仅允许存储增量的冷却剂，而且缩短冷却剂（19）之间的传热路径）和阀座的阀座，从而提高阀头（14）的热降低性能。该径向延伸的法兰形状空腔（S1a）有助于避免使整个阀头变薄，并且不影响阀门（10）的耐久性。

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