Pump

Abstract

A pump includes an electric motor that is mounted in a motor compartment, a rotor that is mounted in a pump chamber and coaxial to a driven shaft of the motor and driven by the motor, a pump inlet nozzle, and a pump discharge nozzle, wherein the pump is enclosed by a housing and wherein the motor compartment is connected to a surrounding atmosphere by a ventilation channel. The ventilation channel is arranged parallel to the shaft of the motor in the housing and is guided from a lower end of the housing in the region of the pump inlet nozzle up to a passage opening that is formed directly underneath a motor bearing bracket.

1 . A pump comprising:
 an electric motor that is mounted in a motor compartment,   a rotor that is mounted in a pump chamber coaxial to a shaft of the motor and can be driven by the motor,   a pump inlet nozzle,   a pump discharge nozzle,   wherein the pump is enclosed by a housing and wherein the motor compartment is connected to a surrounding atmosphere by a ventilation channel, and   wherein the ventilation channel is arranged parallel to the shaft of the motor in the housing and is guided from a lower end of the housing in the region of the pump inlet nozzle up to a passage opening that is formed directly underneath a motor bearing bracket.   
     
     
         2 . The pump according to  claim 1 , wherein a cylindrical part of the housing is formed integrally with a base, the pump inlet nozzle, and the pump discharge nozzle. 
     
     
         3 . The pump according to  claim 2 , wherein a cover of the housing is sealed in a waterproof manner with the cylindrical part. 
     
     
         4 . The pump according to  claim 3 , wherein a connector for an electrical connection of the motor is arranged integrally on the cover.