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Franz Arno Griessmann
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8226. Griessmann, F. A. April 14. Centrifugal pumps. -End-thrust in centrifugal pumps is automatically balanced by a piston a arranged in a cylinder so that annular and radial throttle spaces b, c, e, d are formed as shown. The clearance at b is very small, and on axial motion of the shaft the pressures in the chambers B, C are modified to restore balance on account of the altered radial clearances at c, d. High h - pressure fluid leaks from chamber A, but the small-clearance space b may be arranged on the low-pressure side of the piston. The radial faces of the piston may be formed without the recesses shown.
GB190808226D1908-04-141908-04-14Improvements in Automatic Balancing Devices for Centrifugal Pumps and the like.
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