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1. 发明授权

US07059609B1 Metal gasket with cold formed stopper 有权
标题翻译：带冷成型止动件的金属垫片
公开(公告)号：US07059609B1
公开(公告)日：2006-06-13
申请号：US09592969
申请日：2000-06-13
申请人： Edward James Locke , James Roman Zwick
发明人： Edward James Locke , James Roman Zwick
IPC分类号： F02F11/00
CPC分类号： F16J15/0825 , F16J2015/0843 , Y10T29/49297
摘要： A multilayer metal gasket has a pair of outer active layers separated by an intermediate layer. The outer active layers are formed with at least one pair of aligned apertures and sealing beads surrounding the apertures in radially outwardly spaced relation thereto presenting laterally opposed sealing surfaces of the active layers of predetermined spacing or thickness when the gasket is in a compressed free state. The intermediate layer extends radially inwardly beyond the apertures and is provided with a cold formed stopper portion having a thickness greater than the combined material thicknesses of the intermediate layer and outer active layers but less than the thickness of the sealing beads. The stopper portion is cold formed under a compressive load exceeding the compressive load required to deform the sealing beads beyond their elastic limit, thereby preventing irreversible damage to the sealing beads. The stopper portion presents opposing sealing surfaces which, when the gasket is clamped between two members having a passage to be sealed, serves as a primary seal or fire dam, shielding the sealing beads of the outer active layers from direct exposure to the heat of any fluid in the passage, such as hot exhaust gases of an internal combustion engine.
摘要翻译：多层金属垫片具有由中间层隔开的一对外部活性层。外部有源层形成有至少一对对齐的孔和围绕这些孔径的向外间隔的关系的密封珠，当衬垫处于压缩自由状态时，其具有预定间隔或厚度的有源层的横向相对的密封表面。中间层径向向内延伸超过孔，并且设置有具有大于中间层和外部活性层的组合材料厚度但小于密封珠的厚度的厚度的冷成型止挡部分。止动部分在超过超过其弹性极限使密封珠变形所需的压缩载荷的压缩载荷下冷成型，从而防止密封珠的不可逆损坏。止动部分呈现相对的密封表面，当垫圈被夹紧在具有待密封通道的两个构件之间时，该密封表面用作初级密封或防火堤，屏蔽外部活性层的密封珠直接暴露于任何通道中的流体，例如内燃机的热废气。

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