Patents by Inventor Patrick Marro

Patrick Marro 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: 10457385
    Abstract: A wheel drive system for ground movement of an aircraft includes a motor system and a clutch system. The motor system, which is borne by an unsuspended part of a landing gear strut of the aircraft, includes an electric motor and a reduction gearing system. The clutch system, which connects an output shaft of the electric motor to a wheel of the aircraft via the reduction gearing system, includes a dog-clutch and a translational movement system. The dog-clutch includes a drive part, which is secured to the motor system, and a receiving part, which secures to a rim of the wheel. The translational movement system moves the drive part along an axis of an axle crossbeam of the landing gear strut into an engaged position, in which the drive part collaborates with the receiving part, and a disengaged position, in which the drive part is separated from the receiving part.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: October 29, 2019
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Olivier Essinger, Patrick Marro, Claude Blanc
  • Patent number: 10442528
    Abstract: A wheel drive system for ground movement of an aircraft includes a motor system and a clutch system. The motor system, which is borne by an unsuspended part of a landing gear strut of the aircraft, includes an electric motor and a reduction gearing system. The clutch system, which connects an output shaft of the electric motor to a wheel of the aircraft via the reduction gearing system, includes a dog-clutch and a translational movement system. The dog-clutch includes a drive part, which is secured to the motor system, and a receiving part, which secures to a tire of the wheel. The translational movement system moves the drive part along an axis of an axle crossbeam of the landing gear strut into an engaged position, in which the drive part collaborates with the receiving part, and a disengaged position, in which the drive part is separated from the receiving part.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: October 15, 2019
    Assignee: Compagnie Generale des Etablissements Michelin
    Inventors: Olivier Essinger, Patrick Marro, Claude Blanc
  • Publication number: 20170129594
    Abstract: Wheel drive system, particularly for the ground circulation of an aircraft comprising a motor unit (22) borne by an unsuspended part (14b) of a landing gear strut (14) of the aircraft and comprising an electric motor (26) and reduction means, and a clutch device (24) connecting the output shaft (26a) of the electric motor (26) to the wheel (12) via the reduction means. The clutch device (24) comprises a dog-clutch mechanism (32, 34) comprising a drive part (32) secured to the motor unit (22) and a receiving part (34) secured to the tire (12a) of the wheel (12), and a system for the translational movement, along the axis of the axle crossbeam (20) of the landing gear strut (14), of the drive part (32) into an engaged position in which the drive part (32) collaborates with the receiving part (34) and a disengaged position in which the drive part (32) is separated from the receiving part (34).
    Type: Application
    Filed: June 30, 2015
    Publication date: May 11, 2017
    Inventors: OLIVIER ESSINGER, PATRICK MARRO, CLAUDE BLANC
  • Publication number: 20170113788
    Abstract: Wheel drive system, particularly for the ground circulation of an aircraft comprising a motor unit (22) borne by an unsuspended part (14b) of a landing gear strut (14) of the aircraft and comprising an electric motor (26) and reduction means, and a clutch device (24) connecting the output shaft (26a) of the electric motor (26) to the wheel (12) via the reduction means. The clutch device (24) comprises a dog-clutch mechanism (32, 34) comprising a drive part (32) secured to the motor unit (22) and a receiving part (34) secured to the rim (12b) of the wheel (12), and a system for the translational movement, along the axis of the axle crossbeam (20) of the landing gear strut (14), of the drive part (32) into an engaged position in which the drive part (32) collaborates with the receiving part (34) and a disengaged position in which the drive part (32) is separated from the receiving part (34).
    Type: Application
    Filed: June 30, 2015
    Publication date: April 27, 2017
    Inventors: OLIVIER ESSINGER, PATRICK MARRO, CLAUDE BLANC
  • Patent number: 9090154
    Abstract: Motorized hub for an electrically powered motor vehicle comprising a wheel hub mounted to rotate about a hub axis, and an electric traction unit comprising an external stator connected to a hub carrier and an internal rotor (31) whose axis of rotation is distant from the hub axis. The motorized hub comprises reduction means acting between shaft (33) of rotor (31), friction braking means, and a braking rotor secured to the hub. The reduction means comprise a drive pinion connected to the rotor (31) and a ring gear connected to the hub. A brake shaft passes through the hub carrier to connect the braking rotor to the hub. The reduction means comprise two reduction stages and the hub is mounted so that it can rotate via rolling-contact hub bearings positioned around a stub axle of the hub carrier, the brake shaft passing axially through a cavity of the stub axle.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: July 28, 2015
    Assignees: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, Michelin Recherche et Technique S.A.
    Inventors: Patrick Marro, Daniel Walser
  • Publication number: 20130207446
    Abstract: Motorized hub for an electrically powered motor vehicle comprising a wheel hub mounted to rotate about a hub axis, and an electric traction unit comprising an external stator connected to a hub carrier and an internal rotor (31) whose axis of rotation is distant from the hub axis. The motorized hub comprises reduction means acting between shaft (33) of rotor (31), friction braking means, and a braking rotor secured to the hub. The reduction means comprise a drive pinion connected to the rotor (31) and a ring gear connected to the hub. A brake shaft passes through the hub carrier to connect the braking rotor to the hub. The reduction means comprise two reduction stages and the hub is mounted so that it can rotate via rolling-contact hub bearings positioned around a stub axle of the hub carrier, the brake shaft passing axially through a cavity of the stub axle.
    Type: Application
    Filed: June 30, 2011
    Publication date: August 15, 2013
    Applicants: Michelin Recherche et Technique S.A., COMPAGNIE GENERALE DES ETSBLISSEMENTS MICHELIN
    Inventors: Patrick Marro, Daniel Walser
  • Patent number: 8490729
    Abstract: A motorized hub (1) for an electric traction automobile vehicle, said motorized hub comprising a hub (9) adapted to receive a wheel (2), the hub being mounted to rotate relative to a hub-carrier (7) about a hub axis. The motorized hub comprises a traction electric machine having an external stator (32) fastened to the hub-carrier and an internal rotor (31) the rotation axis of which is spaced from the hub axis and parallel to said hub axis. The motorized hub comprises reduction means (6) operating between the rotor of the electric machine and the hub, and friction braking means, the brake rotor (5) being fastened to the hub and disposed axially on the vehicle interior side relative to the reduction means. The shaft of the rotor (31) of the electric machine being placed radially outside the brake rotor and extending axially from the reduction means toward the interior of the vehicle.
    Type: Grant
    Filed: April 3, 2009
    Date of Patent: July 23, 2013
    Assignees: Michelin Recherche et Technique S.A., Compagnie Generale des Etablissements Michelin
    Inventors: Daniel Walser, Patrick Marro
  • Publication number: 20130088068
    Abstract: A motor-driven hub (1) for electrically driving an axle of a motor vehicle, said motor-driven hub including a hub (7) configured to receive a wheel (2), the hub (7) being rotatably mounted with respect to a hub carrier (5) about a hub axis (M), the motor-driven hub including an electric traction machine (3), the electric machine including an external stator (32) connected to the hub carrier and an internal rotor, the rotation of the rotor of the electric machine being permanently coupled to the rotation of the hub by means of reduction means (4), the reduction means (4) including a motor pinion gear (42) connected to the rotor of the electric machine and a crown gear (45) connected to the hub (7), the motor-driven hub also comprising mechanical disk braking means (12), wherein the reduction means include two stages of reduction and the brake disk is placed on the outside of the hub carrier with respect to the vehicle.
    Type: Application
    Filed: March 17, 2010
    Publication date: April 11, 2013
    Applicants: Michelin Recherche et Technique S.A., COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Daniel Walser, Patrick Marro
  • Publication number: 20110115343
    Abstract: A motorized hub (1) for an electric traction automobile vehicle, said motorized hub comprising a hub (9) adapted to receive a wheel (2), the hub being mounted to rotate relative to a hub-carrier (7) about a hub axis. The motorized hub comprises a traction electric machine having an external stator (32) fastened to the hub-carrier and an internal rotor (31) the rotation axis of which is spaced from the hub axis and parallel to said hub axis. The motorized hub comprises reduction means (6) operating between the rotor of the electric machine and the hub and friction braking means, the brake rotor (5) being fastened to the hub and disposed axially on the vehicle interior side relative to the reduction means. The shaft of the rotor (31) of the electric machine being placed radially outside the brake rotor and extending axially from the reduction means toward the interior of the vehicle.
    Type: Application
    Filed: April 3, 2009
    Publication date: May 19, 2011
    Inventors: Daniel Walser, Patrick Marro