Circulating pump and method for the fluid lubrication of a...

Details Circulating pump and method for the fluid lubrication of a... Circulating pump and method for the fluid lubrication of a...

2005-05-05

2010-12-21

Kramer, Devon C (Department: 3746)

Pumps

Motor driven

Electric or magnetic motor

C417S366000, C417S423120, C417S423130, C384S108000

Reexamination Certificate

active

07854599

ABSTRACT:
A circulating pump with an electric motor, which comprises a rotor and a stator, is proposed, the rotor being mounted on a spherical bearing which comprises a sliding body with a convex spherical surface and a bearing bushing with a concave spherical surface and which is fluid-lubricated, in which pump a flow system for passing lubricating fluid through a lubricating region between the sliding body and the bearing bushing is separate from a gap between the stator and the rotor.

REFERENCES:
patent: 4730989 (1988-03-01), Laing
patent: 4938121 (1990-07-01), Melchior
patent: 37 01 562 (1987-09-01), None
patent: 195 48 471 (1997-06-01), None
patent: 196 29 843 (1998-01-01), None
patent: 100 59 458 (2002-06-01), None

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