发明名称 |
Pump for filtration systems |
摘要 |
A pump for pumping fluids in a filtration system is disclosed. The pump has a thrust balancing means to reduce axial loads on motor bearings of the pump during operation of the pump. A drive system of the pump includes an elongate flexible shaft interconnecting a drive shaft and an impeller shaft. The elongate flexible shaft bends and twists to accommodate misalignment during assembly of the drive system. A seal assembly is provided for sealing about a drive shaft. The seal assembly is evacuated to prevent pumped fluid from contaminating fluids in the motor. A concentric coupling and method for making the same are taught which include a cylindrical block which is concentrically bored and cut into an annular L-shaped segment having an L-shaped notch and a semi-cylindrical mating segment which is received into the notch. The coupling concentrically joins a pair of shafts together.
|
申请公布号 |
US5503520(A) |
申请公布日期 |
1996.04.02 |
申请号 |
US19930169678 |
申请日期 |
1993.12.17 |
申请人 |
HENRY FILTERS, INC. |
发明人 |
MCEWEN, STEPHEN N.;HALLETT, RICHARD A.;BENSCHOTER, ROBERT F.;MCEWEN, SCOTT M.;PALUMBO, ANTHONY J. |
分类号 |
F04D13/02;F04D29/04;F04D29/041;F04D29/043;F04D29/044;F04D29/047;F04D29/12;F16D1/05;F16D1/08;F16D1/091;F16D1/094;F16D1/096;(IPC1-7):F01D3/00 |
主分类号 |
F04D13/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|