Impellers 1 and 2 rotate about fixed axes A and B. Teeth c of impeller 1 engage tooth spaces d of impeller 2. The profiles of teeth c and tooth spaces d are made up of portions of cycle curves. When impellers 1 and 2 rotate, fluid is delivered continuously in the direction of arrows a and b. The suction and discharge chambers are separated by imparting special profiles to teeth c and tooth spaces d. The impellers are driven by two meshing identical gears keyed on shafts with impellers 1 and 2.
$3995$THP,GP$