Patents by Inventor Stefano Fornara

Stefano Fornara 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).

  • Patent number: 10890148
    Abstract: Fuel pump for an internal combustion engine, wherein the fuel pump has: an auxiliary tank designed to receive a fuel flow from a low-pressure fuel pump; a pumping device drawing the fuel from the auxiliary tank through a suction duct; a Venturi choke arranged along the suction duct; and a degasification duct, which originates in a ceiling of the auxiliary tank and leads to the middle of the Venturi choke.
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: January 12, 2021
    Assignee: MARELLI EUROPE S.p.A.
    Inventors: Stefano Fornara, Michael Heyn
  • Publication number: 20200056571
    Abstract: Fuel pump for an internal combustion engine, wherein the fuel pump has: an auxiliary tank designed to receive a fuel flow from a low-pressure fuel pump; a pumping device drawing the fuel from the auxiliary tank through a suction duct; a Venturi choke arranged along the suction duct; and a degasification duct, which originates in a ceiling of the auxiliary tank and leads to the middle of the Venturi choke.
    Type: Application
    Filed: August 19, 2019
    Publication date: February 20, 2020
    Applicant: MAGNETI MARELLI S.p.A.
    Inventors: Stefano Fornara, Michael Heyn
  • Patent number: 8413641
    Abstract: An intake manifold with integrated canister circuit for a supercharged internal combustion engine provided with: a tubular body in which a plenum is defined; a sorting chamber obtained in a wall of the tubular body; a canister solenoid valve arranged in the sorting chamber and is adapted to adjust the introduction of gasoline vapours into the sorting chamber; a first pipe, which is obtained in the wall of the tubular body, puts the sorting chamber into communication with the plenum, and defines a first branch of a recovery pipe; a second pipe, which is obtained in the wall of the tubular body and defines an initial portion of a second branch of the recovery pipe; a first one-way valve which allows, through the first pipe, only a flow towards the plenum; a second one-way valve which allows, through the second pipe, only a flow through the intake pipe.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: April 9, 2013
    Assignee: Magneti Marelli S.p.A.
    Inventors: Stefano Fornara, Andrea Davitti, Michele Pecora
  • Patent number: 8096277
    Abstract: An intake manifold for an internal combustion engine comprising an engine head in which there are obtained a number of cylinders; the intake manifold comprises a central body, wherein there are obtained an intake chamber which receives the intake air and a number of conduits each of which connects the chamber to a corresponding cylinder of the internal combustion engine; first passage through holes obtained in the central body for fastening the intake manifold to the engine head by means of first fastening screws screwed into the engine head; a common rail which receives the pressurized fuel and is connected to a number of injectors, each of which injects the fuel into a corresponding cylinder; second blank threaded fastening holes obtained in the central body for fastening the common rail to the central body itself by means of the second fastening screws screwed into the central body and, for each second fastening hole, a metallic reinforcement bracket, which presents a first assembly through hole arranged o
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: January 17, 2012
    Assignee: Magneti Marelli Powertrain S.p.A.
    Inventors: Stefano Fornara, Stefano Carta
  • Patent number: 8051823
    Abstract: A combined actuator provided with: a mobile element; a driver for displacing the mobile element; and a rheological control brake, which is mechanically coupled to the mobile element to adjust the displacement of the mobile element; the rheological control brake has: two contiguous adjustment chambers; a rheological fluid contained in the two adjustment chambers; a sliding piston, which tightly separates the two adjustment chambers and is mechanically connected to the mobile element; at least one external connection pipe, which reciprocally connects the two adjustment chambers; and a driving device which is coupled to the external connection pipe so as to apply a variable electromagnetic field to the rheological fluid contained in the external connection pipe for varying the viscosity of the rheological fluid between a minimum value and a maximum value.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: November 8, 2011
    Assignee: Magneti Marelli Powertrain S.p.A.
    Inventors: Andrea Spaggiari, Eugenio Dragoni, Nazario Bellato, Michele Pecora, Federico Lancioni, Stefano Fornara, Andrea Baldassari
  • Patent number: 7905218
    Abstract: An intake manifold with integrated canister circuit for a supercharged internal combustion engine. The intake manifold includes a tubular body in which a plenum is defined. A sorting chamber is in a wall of the tubular body. A canister solenoid valve is arranged in the sorting chamber and is adapted to adjust the introduction of gasoline vapors into the sorting chamber itself. A first pipe in the wall of the tubular body puts the sorting chamber into communication with the plenum, and defines a first branch of a recovery pipe. A one-way valve is arranged in the sorting chamber at the first pipe. A second pipe in the wall of the tubular body puts the sorting chamber into communication with the intake pipe upstream of a compressor, and defines an initial portion of a second branch of the recovery pipe.
    Type: Grant
    Filed: October 27, 2008
    Date of Patent: March 15, 2011
    Assignee: Magnetti Marelli Powertrain S.p.A.
    Inventors: Stefano Fornara, Michele Pecora
  • Patent number: 7895988
    Abstract: A lock coupling between two mechanical components and presenting: at least one pair of coupling elements, each of which presents an ā€œLā€-shape and protrudes from a first mechanical component; and at least one pair of tracks, each of which is made through a second mechanical component, presents the shape of an arc of circumference, ends with a flared inlet opening, and is engaged in use by a coupling element; each track presents a dimension so as to prevent the axial removal of the coupling element along its entire length except for an inlet opening at which the coupling element can be axially removed.
    Type: Grant
    Filed: October 4, 2007
    Date of Patent: March 1, 2011
    Assignee: Magneti Marelli Powertrain S.p.A.
    Inventors: Federico Lancioni, Michele Pecora, Stefano Fornara
  • Patent number: 7856957
    Abstract: An intake manifold with a swirl system for an internal combustion engine provided with a number of cylinders; the intake manifold has, for each cylinder, an intake pipe, which is adapted to connect the intake manifold to the cylinder and has, in turn, two reciprocally parallel channels; the swirl system is provided with: for each intake pipe, a choking valve, which is arranged inside a channel of the intake pipe and is adapted to vary the air introduction section through the channel; and a single actuator device, which simultaneously and synchronically displaces all the choking valves and is provided with a motor and a mechanical transmission system which transmits the motion from the motor to all the choking valves.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: December 28, 2010
    Assignee: Magneti Marelli S.p.A.
    Inventors: Stefano Fornara, Giampaolo Schiavina
  • Patent number: 7789372
    Abstract: A butterfly valve of a swirl system for an internal combustion engine; the butterfly valve displays: a shaft which is rotationally mounted within an intake channel to rotate about a rotation axis; and a butterfly valve plate which is rigidly connected to the shaft and is provided with a seat, which is coaxially arranged with respect to the shaft and accommodates the shaft within itself.
    Type: Grant
    Filed: November 16, 2007
    Date of Patent: September 7, 2010
    Assignee: Magneti Marelli Powertrain S.p.A.
    Inventors: Stefano Fornara, Giampaolo Schiavina
  • Publication number: 20100218749
    Abstract: An intake manifold with integrated canister circuit for a supercharged internal combustion engine; the intake manifold is provided with: a tubular body in which a plenum is defined; a sorting chamber, which is obtained in a wall of the tubular body; a canister solenoid valve, which is arranged in the sorting chamber and is adapted to adjust the introduction of gasoline vapours into the sorting chamber itself; a first pipe, which is obtained in the wall of the tubular body, puts the sorting chamber into communication with the plenum, and defines a first branch of a recovery pipe; a second pipe, which is obtained in the wall of the tubular body and defines an initial portion of a second branch of the recovery pipe; a first one-way valve which is arranged in the sorting chamber in correspondence of the first pipe and allows, through the first pipe, only a flow towards the plenum; a second one-way valve which is arranged in the sorting chamber in correspondence of the second pipe and allows, through the second pi
    Type: Application
    Filed: February 24, 2010
    Publication date: September 2, 2010
    Applicant: Magneti Marelli S.p.A.
    Inventors: Stefano Fornara, Andrea Davitti, Michele Pecora
  • Publication number: 20100018496
    Abstract: An intake manifold with a swirl system for an internal combustion engine provided with a number of cylinders; the intake manifold has, for each cylinder, an intake pipe, which is adapted to connect the intake manifold to the cylinder and has, in turn, two reciprocally parallel channels; the swirl system is provided with: for each intake pipe, a choking valve, which is arranged inside a channel of the intake pipe and is adapted to vary the air introduction section through the channel; and a single actuator device, which simultaneously and synchronically displaces all the choking valves and is provided with a motor and a mechanical transmission system which transmits the motion from the motor to all the choking valves.
    Type: Application
    Filed: July 24, 2009
    Publication date: January 28, 2010
    Inventors: Stefano Fornara, Giampaolo Schiavina
  • Publication number: 20100018491
    Abstract: A suction manifold for an internal combustion engine provided with a head in which a number of cylinders are obtained; the suction manifold displays: a body of the suction manifold in which a suction chamber, which receives fresh air from the external environment, and a number of suction pipes, each of which connects the suction chamber to a corresponding cylinder of the internal combustion engine, are defined and which ends with an outlet mouth; and a choking system for varying the geometry of the suction manifold and comprising, for each suction pipe, a corresponding choking valve provided with a choking element, which is arranged inside the suction pipe and is fitted to a shaft which is rotated about a rotation axis by an actuator device; the shaft of the choking system is provided with a toothed wheel arranged at one end of the shaft itself; and the actuator device displays a movable rod, which is linearly movable and provided with a rack which meshes with the toothed wheel of the shaft of the choking sys
    Type: Application
    Filed: July 23, 2009
    Publication date: January 28, 2010
    Inventors: Stefano Fornara, Stefano Carta, Michele Pecora
  • Patent number: 7552710
    Abstract: A variable geometry intake manifold for an internal combustion engine; the intake manifold presents: at least one intake pipe which connects the intake manifold to at least one cylinder of the internal combustion engine; and a choking system to vary the geometry of the intake manifold and comprising at least one choke valve provided with a choke body, which is arranged within the intake pipe and is turnably mounted about an axis of rotation; the choke valve integrates therein a pair of mechanical stoppers, which respectively determine the location of an active position and of a home position of the choke body.
    Type: Grant
    Filed: October 5, 2007
    Date of Patent: June 30, 2009
    Assignee: Magneti Marelli Powertrain S.p.A.
    Inventors: Federico Lancioni, Michele Pecora, Stefano Fornara
  • Publication number: 20090133657
    Abstract: An intake manifold for an internal combustion engine comprising an engine head in which there are obtained a number of cylinders; the intake manifold comprises a central body, wherein there are obtained an intake chamber which receives the intake air and a number of conduits each of which connects the chamber to a corresponding cylinder of the internal combustion engine; first passage through holes obtained in the central body for fastening the intake manifold to the engine head by means of first fastening screws screwed into the engine head; a common rail which receives the pressurized fuel and is connected to a number of injectors, each of which injects the fuel into a corresponding cylinder; second blank threaded fastening holes obtained in the central body for fastening the common rail to the central body itself by means of the second fastening screws screwed into the central body and, for each second fastening hole, a metallic reinforcement bracket, which presents a first assembly through hole arranged o
    Type: Application
    Filed: September 26, 2008
    Publication date: May 28, 2009
    Applicant: Magneti Marelli Powertrain S.p.A.
    Inventors: Stefano FORNARA, Stefano CARTA
  • Publication number: 20090127484
    Abstract: A combined actuator provided with: a mobile element; a driver for displacing the mobile element; and a rheological control brake, which is mechanically coupled to the mobile element to adjust the displacement of the mobile element; the rheological control brake has: two contiguous adjustment chambers; a rheological fluid contained in the two adjustment chambers; a sliding piston, which tightly separates the two adjustment chambers and is mechanically connected to the mobile element; at least one external connection pipe, which reciprocally connects the two adjustment chambers; and a driving device which is coupled to the external connection pipe so as to apply a variable electromagnetic field to the rheological fluid contained in the external connection pipe for varying the viscosity of the rheological fluid between a minimum value and a maximum value.
    Type: Application
    Filed: November 12, 2008
    Publication date: May 21, 2009
    Inventors: Andrea Spaggiari, Eugenio Dragoni, Nazario Bellato, Michele Pecora, Federico Lancioni, Stefano Fornara, Andrea Baldassari
  • Publication number: 20090114180
    Abstract: An intake manifold with integrated canister circuit for a supercharged internal combustion engine; the intake manifold is provided with: a tubular body in which a plenum is defined; a sorting chamber, which is obtained in a wall of the tubular body; a canister solenoid valve, which is arranged in the sorting chamber and is adapted to adjust the introduction of gasoline vapours into the sorting chamber itself; a first pipe, which is obtained in the wall of the tubular body, puts the sorting chamber into communication with the plenum, and defines a first branch of a recovery pipe; a one-way valve, which is arranged in the sorting chamber at the first pipe; and a second pipe, which is obtained in the wall of the tubular body, puts the sorting chamber into communication with the intake pipe upstream of a compressor, and defines an initial portion of a second branch of the recovery pipe.
    Type: Application
    Filed: October 27, 2008
    Publication date: May 7, 2009
    Applicant: MAGNETI MARELLI POWERTRAIN S.p.A.
    Inventors: Stefano Fornara, Michele Pecora
  • Publication number: 20080149876
    Abstract: A butterfly valve of a swirl system for an internal combustion engine; the butterfly valve displays: a shaft which is rotationally mounted within an intake channel to rotate about a rotation axis; and a butterfly valve plate which is rigidly connected to the shaft and is provided with a seat, which is coaxially arranged with respect to the shaft and accommodates the shaft within itself.
    Type: Application
    Filed: November 16, 2007
    Publication date: June 26, 2008
    Inventors: Stefano Fornara, Giampaolo Schiavina
  • Publication number: 20080150278
    Abstract: A lock coupling between two mechanical components and presenting: at least one pair of coupling elements, each of which presents an ā€œLā€-shape and protrudes from a first mechanical component; and at least one pair of tracks, each of which is made through a second mechanical component, presents the shape of an arc of circumference, ends with a flared inlet opening, and is engaged in use by a coupling element; each track presents a dimension so as to prevent the axial removal of the coupling element along its entire length except for an inlet opening at which the coupling element can be axially removed.
    Type: Application
    Filed: October 4, 2007
    Publication date: June 26, 2008
    Inventors: Federico Lancioni, Michele Pecora, Stefano Fornara
  • Publication number: 20080127929
    Abstract: A variable geometry intake manifold for an internal combustion engine; the intake manifold presents: at least one intake pipe which connects the intake manifold to at least one cylinder of the internal combustion engine; and a choking system to vary the geometry of the intake manifold and comprising at least one choke valve provided with a choke body, which is arranged within the intake pipe and is turnably mounted about an axis of rotation; the choke valve integrates therein a pair of mechanical stoppers, which respectively determine the location of an active position and of a home position of the choke body.
    Type: Application
    Filed: October 5, 2007
    Publication date: June 5, 2008
    Inventors: Federico Lancioni, Michele Pecora, Stefano Fornara
  • Patent number: 7249585
    Abstract: An intake manifold with a swirl system for an internal combustion engine having a number of cylinders; the intake manifold has, for each cylinder, an intake conduit connecting the intake manifold to the cylinder and in turn having two parallel channels; the swirl system has, for each intake conduit, a throttle valve housed inside a channel of the intake conduit to vary the air flow section of the channel, and which has a throttle mounted to rotate about an axis of rotation.
    Type: Grant
    Filed: October 2, 2006
    Date of Patent: July 31, 2007
    Assignee: Magneti Marelli Powertrain S.p.A.
    Inventors: Stefano Fornara, Giampaolo Schiavina