Patents by Inventor Domenico D'Angelo

Domenico D'Angelo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Valve unit for an internal combustion engine intake duct, comprising non-return flap valves
    Patent number: 4955329
    Abstract: The valve unit comprises non-return valves disposed within the intake duct and formed from longitudinal channels and flaps which engage these latter. The channels are provided with seal gaskets at their edges and are formed with their base walls shaped on their outer side in such a manner as to improve the valve reliability and life. The flaps comprise fixing tabs which are clamped between ledges and support surfaces of the superposed channels.
    Type: Grant
    Filed: March 10, 1989
    Date of Patent: September 11, 1990
    Assignee: Alfa Lancia Industriale S.p.A.
    Inventors: Domenico D'Angelo, Marco Visconti
  • Ignition device for an internal combustion engine with two spark plugs per cylinder
    Patent number: 4920944
    Abstract: The device comprises a control center arranged to control a first and second ignition coil and to operate the engine under double ignition during normal use and under single ignition during full induction; in this latter case, ignition by the spark plugs of a first set is alternated with ignition by the spark plugs of a second set, for predetermined numbers of engine cycles.
    Type: Grant
    Filed: June 5, 1989
    Date of Patent: May 1, 1990
    Assignee: Alfa Lancia Industriale S.p.A.
    Inventors: Paolo Lanati, Alessandro Piccone, Domenico D'Angelo
  • Gasoline feed device for internal combustion engine
    Patent number: 4829966
    Abstract: A device is proposed for gasoline feeding to an internal combustion engine, comprising injectors for injecting gasoline in the nearby of intake valves under low- and medium-load operating conditions, and valve means to feed gasoline into the feed manifold under high-load operating conditions.
    Type: Grant
    Filed: January 30, 1987
    Date of Patent: May 16, 1989
    Assignee: Alfa Romeo Auto S.p.A.
    Inventors: Domenico D'Angelo, Marco Visconti
  • Intake system for an internal combustion engine provided with several intake valves
    Patent number: 4519363
    Abstract: In a multi-cylinder engine provided with several intake valves per cylinder and with the relative intake ducts, non-return valve means are provided in one of the intake ducts of each cylinder, in series with the respective intake valve.
    Type: Grant
    Filed: January 17, 1984
    Date of Patent: May 28, 1985
    Assignee: Alfa Romeo Auto S.p.A.
    Inventors: Luigi Bernardoni, Domenico D'Angelo