Patent ID: 6010329
Filing Date: 2000-01-04
Classification: B01F,F04F,F23D

Abstract:
A jet pump for a heat gun comprising:an elongate hollow pump body lying along a longitudinal axis having an inlet with an inlet opening diameter, a mixing section and an outlet;a nozzle unit axially aligned with the inlet for directing pressurized fuel into the inlet of the pump body, movement of the pressurized fuel into the inlet causing air to be drawn into the inlet to mix with the fuel within the pump body;a disk shaped air diverter axially spaced away from the inlet of the pump body, the diverter having a length and a diameter, the diameter of the diverter being greater than the length of the diverter and larger than the inlet opening diameter of the pump body;a housing radially spaced from and surrounding the diverter forming a first annular gap therearound for air outside the housing to pass therethrough, the air moving around the diverter then changing direction between the diverter and the inlet of the pump body before entering the inlet.