Magnetically levitated pump utilizing magnetic bearings

Details Magnetically levitated pump utilizing magnetic bearings Magnetically levitated pump utilizing magnetic bearings

2004-10-21

2008-12-23

Kramer, Devon (Department: 3746)

Pumps

Motor driven

Electric or magnetic motor

C417S420000, C417S423700, C417S423120

Reexamination Certificate

active

07467930

ABSTRACT:
In a magnetically levitated pump, an impeller-side ferromagnetic body (second ferromagnetic body) provided on a circumferential surface of an impeller facing a casing unit on the side of a position sensor and a casing-side ferromagnetic body (third ferromagnetic body) opposite to the impeller-side ferromagnetic body (second ferromagnetic body) to attract the impeller toward the casing unit on the side of the position sensor are adapted to have opposite portions of mutually different shapes, so that the maximum required attractive force of an electro-magnet for magnetic bearing is suppressed and length of the electro-magnet for magnetic bearing is made shorter.

REFERENCES:
patent: 5121605 (1992-06-01), Oda et al.
patent: 5686772 (1997-11-01), Delamare et al.
patent: 6177745 (2001-01-01), Narita et al.
patent: 6227817 (2001-05-01), Paden
patent: 6394769 (2002-05-01), Bearnson et al.
patent: 6626644 (2003-09-01), Ozaki
patent: 6840735 (2005-01-01), Yaegashi et al.
patent: 7070398 (2006-07-01), Olsen et al.
patent: 7141966 (2006-11-01), Sumiya et al.
patent: 0 378 251 (1990-07-01), None
patent: 2002-130177 (2002-05-01), None
patent: WO 99/12587 (1999-03-01), None
patent: WO 99/53974 (1999-10-01), None

Affiliated with

Also associated with

Rating

Magnetically levitated pump utilizing magnetic bearings does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Magnetically levitated pump utilizing magnetic bearings, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetically levitated pump utilizing magnetic bearings will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4030686