This invention relates to a method for high speed transferring fluid and its device in which the high speed fluid throm from the blade wheel enters into the diversion slot round the blade wheel then enters into the spiral-flow tube tangentially from the diversion slot to form rotation flow to be exhausted from exit or thrown out directly from the diversion slot border. The device has inlet, outlet and blade wheel chamber, the pump case is composed of outer and inner jackets or more components which circule the blade wheel chamber diversion slot, inlet and outlet, the pump case has isometrical or reducing spiral-flow tube and streamlined arc surface at both sides of the diversion slot. |