Self-ventilating centrifugal pump
A technology of centrifugal pumps and exhaust pumps, applied in the field of centrifugal pumps, to achieve the effect of simple structure and compact implementation
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[0027] figure 1 A centrifugal pump 1 according to the invention is shown. The centrifugal pump 1 consists of a centrifugal pump unit 2 and a liquid ring pump 3 . The centrifugal pump device 2 has an inlet region 4 , an impeller 5 and an outlet region 6 . The inlet area 4 , the impeller 5 and the outlet area 6 are connected to one another by a housing 7 .
[0028] The axis of the pump shaft of the centrifugal pump device 2 is at figure 1 Indicated by reference numeral 19.
[0029] An annular channel 8 of the centrifugal pump device 2 is located between the impeller 5 and the outlet area 6 . The centrifugal pump device 2 has a housing 7 composed of a front part 7a and a rear wall 7b. The front part 7a and the rear wall 7b are not the same member. The centrifugal pump 1 is fixed directly to a drive motor (not shown) by means of a bracket 10 fixed on the rear wall 7b.
[0030] The liquid ring pump 3 and its housing 11 are fixed together in a form-fitting manner between the ...
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