Pumps – Motor driven – Electric or magnetic motor
Patent
1995-03-03
1997-10-07
Freay, Charles G.
Pumps
Motor driven
Electric or magnetic motor
4174238, 4174239, 41742312, 4174241, 366264, F04B 3504
Patent
active
056740573
ABSTRACT:
A mixer pump used in a waste tank for mobilizing high-level radioactive liquid waste having a column assembly containing power cables, a motor housing with electric motor means which includes a stator can of a stator assembly and a rotor can of a rotor assembly, and an impeller assembly with an impeller connected to a shaft of the rotor assembly. The column assembly locates the motor housing with the electric motor means adjacent to the impeller which creates an hydraulic head, and which forces the liquid waste into the motor housing to cool the electric motor means and to lubricate radial and thrust bearing assemblies. Hard-on-hard bearing surfaces of the bearing assemblies and a ring assembly between the impeller and electric motor means act to grind down large particles in the liquid waste flow. These larger particles are received in slots in the static bearing members of the radial bearing assemblies. Only solid waste particles smaller than the clearances in the system can pass therethrough, thereby resisting damage to and the interruption of the operation of the mixer pump.
REFERENCES:
patent: 2568548 (1951-09-01), Howard et al.
patent: 2871791 (1959-02-01), Litzenberg
patent: 3450056 (1969-06-01), Heathcote et al.
patent: 3652186 (1972-03-01), Carter
patent: 3694110 (1972-09-01), Guinard
patent: 3716309 (1973-02-01), Mitchell
patent: 3961758 (1976-06-01), Morgan
patent: 4235569 (1980-11-01), Wegner et al.
patent: 4454078 (1984-06-01), Engelbrecht et al.
patent: 4454993 (1984-06-01), Shibata et al.
patent: 4541782 (1985-09-01), Mohn
patent: 4650342 (1987-03-01), Goodwin
patent: 4990068 (1991-02-01), Zhong et al.
patent: 5101128 (1992-03-01), Veronesi et al.
patent: 5185545 (1993-02-01), Veronesi et al.
patent: 5213468 (1993-05-01), Sexton et al.
patent: 5220231 (1993-06-01), Veronesi et al.
patent: 5252875 (1993-10-01), Veronesi et al.
patent: 5336064 (1994-08-01), Lamers
patent: 5408155 (1995-04-01), Dickinson et al.
patent: 5490768 (1996-02-01), Veronesi et al.
Guardiani Richard F.
Pollick Richard D.
Freay Charles G.
Westinghouse Electric Corporation
LandOfFree
Submersible canned motor mixer pump does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Submersible canned motor mixer pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Submersible canned motor mixer pump will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2352285