Patent ID: 6685445
Filing Date: 2004-02-03
Classification: F04D

Abstract:
A structure of a pump comprising a motor, a seal cap, a ceramic ring, two seals, a shaft cap, a propeller wheel and a pump body, the front of the motor provided with a shaft center having mounted with the shaft cap to prevent fluid from entering the pump and to engage with the propeller wheel, the external side of the shaft center provided with the pump body having an outlet tube, the seal cap located between the top section of the body and the motor, and the bottom section of the body mounted with the ceramic ring, characterized in that the positive face and the reverse face of the shaft cap are provided with the high abrasive resistance seals, and the two seals contact at the top and bottom of the ceramic ring such that gases will not be absorbed by the pump, and no overflow of fluid in the course of shutting down or starting-up the pump, wherein the two shaft caps are symmetrical in a top and bottom position.