发明名称 |
CENTRIFUGAL PUMP WITH AN ANNULAR SHROUD |
摘要 |
PCT No. PCT/EP89/00604 Sec. 371 Date Dec. 13, 1990 Sec. 102(e) Date Dec. 13, 1990 PCT Filed May 30, 1989 PCT Pub. No. WO89/12755 PCT Pub. Date Dec. 28, 1989.A centrifugal pump has a housing which defines an annular chamber disposed downstream of the impeller and surrounding the shaft seal. The chamber receives a hollow cylindrical or frustoconical shroud which surrounds the shaft seal with spacing and protects it from solid particles in the conveyed fluid. A non-contact type annular seal between the impeller and the housing surrounds the shroud.
|
申请公布号 |
US5171126(A) |
申请公布日期 |
1992.12.15 |
申请号 |
US19900634165 |
申请日期 |
1990.12.13 |
申请人 |
KSB AKTIENGESELLSCHAFT |
发明人 |
BECKER, KARLHEINZ;BAYER, KARL-HEINZ |
分类号 |
F04D29/12;F04D7/04;F04D29/42 |
主分类号 |
F04D29/12 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|