Bearing arrangement and wear indicator for a liquid ring vacuum pump
AssigneeSterling Industry Consult GmbH
InventorsHeiner Kösters, Matthias Tamm, Daniel Schütze
Life of this patent
Estimating the term…
Abstract
A liquid-ring vacuum pump comprises a pump casing and a shaft eccentrically mounted in the pump casing. An impeller and a rotor of a drive motor are connected to the shaft. A disk cam is arranged parallel to the impeller. A first main bearing for the shaft is arranged between the impeller and the rotor of the drive motor, on the plane of the disk cam. The impeller is arranged between the first main bearing and a second main bearing. The arrangement of the bearings prevents the shaft from bending, thus allowing the leakage gap between the impeller and the disk cam to be kept small.
Claims20
A liquid-ring vacuum pump having a pump housing, having a shaft which is mounted eccentrically in the pump housing, an impeller and a rotor of a drive motor being connected to the shaft, and having a control disk defining a plane which is arranged parallel to the impeller, a first main bearing and a second main bearing being provided for the shaft, the first main bearing being arranged between the impeller and the rotor, and the impeller being arranged between the first main bearing and the second main bearing, characterized in that the first main bearing is arranged in the plane of the control disk, and the pump further comprises an operating liquid, wherein during operation of the pump, the impeller, impeller vanes, the control disk, and the operating liquid form chambers, and the control disk opens and closes the chambers, wherein a leakage gap is formed between the impeller and the control disk, and the control disk comprises openings through which a medium to be pumped can enter and exit the chambers.
Dependencies are inferred from the claim text.