Patents Assigned to Pneumofore S.P.A.
  • Supercharger device for reciprocating internal combustion engines, particularly for motor vehicles
    Patent number: 4887580
    Abstract: Supercharger device for reciprocating internal combustion engines, particularly for motor vehicles, comprising, inserted on the induction manifold of the engine, a rotary positive-displacement supercharger driven constantly by the motor shaft, the capacity and therefore the delivery pressure whereof is variable from a minimum value to a maximum value and vice versa by virtue of the corresponding controlled variation of the geometry of the pumping means constituted by a stator cylinder, a rotor and vanes.
    Type: Grant
    Filed: March 22, 1988
    Date of Patent: December 19, 1989
    Assignee: Pneumofore S.P.A.
    Inventor: Alfredo Hilfiker