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1. 发明授权

US06216743B1 Bellows tube 失效
标题翻译：波纹管
公开(公告)号：US06216743B1
公开(公告)日：2001-04-17
申请号：US09514298
申请日：2000-02-28
申请人： Shinji Kosaki , Hiroyuki Kihira , Susumu Suzuki
发明人： Shinji Kosaki , Hiroyuki Kihira , Susumu Suzuki
IPC分类号： F16L1100
CPC分类号： F01N13/1816 , F16L27/1004
摘要： The present invention is directed to a bellows tube formed of metal having a cylindrical collar portion and a plurality of corrugations adjacent thereto with outwardly curved portions and inwardly curved portions alternately formed along the longitudinal axis of the tube. The bellows tube includes a bulged end portion which extends from a first outwardly curved portion of the outwardly curved portions toward the collar portion. The bulged end portion is bulged outward of the tube, with its outer diameter gradually reduced from the first outwardly curved portion to the collar portion. A connecting end portion is formed for connecting the bulged end portion with the collar portion, and the connecting end portion is curved inward of the tube. Preferably, the radius of curvature of the connecting end portion is smaller than the radius of curvature of the first outwardly curved end portion.
摘要翻译：本发明涉及一种由金属形成的波纹管，其具有圆柱形套环部分和与其相邻的多个波纹，其具有向外弯曲部分和沿着管的纵向轴线交替形成的向内弯曲部分。波纹管包括从向外弯曲部分的第一向外弯曲部分朝向凸缘部分延伸的凸出端部。凸起端部从管的外侧凸出，其外径从第一向外弯曲部逐渐减小到凸缘部。连接端部形成为用于将突出端部与轴环部分连接，并且连接端部向管内向弯曲。优选地，连接端部的曲率半径小于第一向外弯曲的端部的曲率半径。

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