Pumps – Motor driven – Electric or magnetic motor
Patent
1998-02-12
2000-06-06
Walberg, Teresa
Pumps
Motor driven
Electric or magnetic motor
41742312, 4174241, F04B 1700
Patent
active
060710918
ABSTRACT:
A hydrostatic servo positioning system and hydrostatic thrust bearing for an integral motor/generator and pump/turbine provides recirculating seal liquid through the positioning system and bearings to permit minimal seal liquid flow. In an integral motor/generator and pump/turbine with a stator having windings integral with a casing, a rotor mounted for rotation on a fixed axial shaft within the stator, the rotor being integral with an impeller for liquid flow, the servo positioning system and thrust bearings comprise a passageway through the fixed shaft for seal liquid, a radial liquid duct in the rotor extending from the fixed axial shaft to a port opening in a peripheral surface of the rotor, the radial liquid duct having liquid connection to the passageway through the axial shaft to pressurize seal liquid centrifugally when the rotor rotates in the stator. First and second annular gaps between the peripheral surface of the rotor and the casing extend from both sides of the port opening into first and second thrust chambers between rotor thrust surfaces and the casing. First and second return orifices from the first and second thrust chambers lead to the radial liquid duct to provide first and second servo liquid flow loops.
REFERENCES:
patent: 3218981 (1965-11-01), Kierulf
patent: 3934947 (1976-01-01), Walter et al.
patent: 4919549 (1990-04-01), Lawson et al.
patent: 5209650 (1993-05-01), Lemieux
Patel Vinod D.
Walberg Teresa
LandOfFree
Integral motor/generator and pump/turbine with hydrostatic beari does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Integral motor/generator and pump/turbine with hydrostatic beari, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Integral motor/generator and pump/turbine with hydrostatic beari will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2209275