发明名称 |
Mechanical seal with welded bellows |
摘要 |
A rotary mechanical seal with metal bellows having reinforced weld joints. The bellows is formed of a plurality of adjacent annular discs or diaphragms having inner and outer circumferences welded together. A plurality of annular reinforcing rings are provided, each being associated with the welded joint at one circumference of the diaphragms. The associated rings and the circumferences define a weld area. The presence of the reinforcing rings allows for larger and stronger welds along the associated circumferences, which increases the capacity of the seal to withstand operating pressures.
|
申请公布号 |
US4749200(A) |
申请公布日期 |
1988.06.07 |
申请号 |
US19860864768 |
申请日期 |
1986.05.19 |
申请人 |
JOHN CRANE-HOUDAILLE, INC. |
发明人 |
SEHNAL, JOSEPH;MEDNICK, LEONARD B. |
分类号 |
F16J3/04;F16J15/36;(IPC1-7):F16J15/52 |
主分类号 |
F16J3/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|