Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps {for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis rotors of the squirrel-cage type}
Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps {for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis rotors of the squirrel-cage type}