Patents by Inventor Jérôme Chemin

Jérôme Chemin 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).

  • Aircraft power plant, an aircraft, and a method of using a piston engine in a power plant having a conventional gearbox
    Patent number: 8882027
    Abstract: The present invention relates to a power plant (10) having a piston engine (30) driving a conventional gearbox (20) dimensioned for a turbine engine, said piston engine (30) comprising a first row (31) of pistons (33) presenting an angle (?) relative to a second row (32) of pistons (33). The power plant includes a flywheel (50) and a torsion shaft (40) set into motion by said pistons (33), said torsion shaft (40) being arranged between the first and second rows (31, 32) of pistons.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: November 11, 2014
    Assignee: Airbus Helicopters
    Inventors: Jérôme Chemin, Thomas Manfredotti, Christian Mercier
  • Mechanism for attenuating torque pulsations between an engine and a rotorcraft rotor driven by the engine
    Patent number: 8579589
    Abstract: The invention provides a mechanism for attenuating torque pulsations between an engine (2) and a rotor (1) of a rotorcraft. Torsion means (5) are interposed between the driving and driven shafts and comprise a torsion shaft (6) axially engaged with the drive shaft (3) and the driven shaft (4) an inlet shaft (9) and an outlet shaft (10) respectively engaged with the drive and driven shafts (3, 4) a lever system (7) that extends radially relative to the torsion shaft (6) and that has the inlet and outlet shafts (9, 10) hinged thereto via points (11, 12) that are spaced apart; and a mass (8) carried by said lever arm (7) at its free end (13) radially farthest away from the axis along which the torsion shaft (6) extends.
    Type: Grant
    Filed: October 4, 2010
    Date of Patent: November 12, 2013
    Assignee: Eurocopter
    Inventors: Thomas Manfredotti, Jerome Chemin
  • AIRCRAFT POWER PLANT, AN AIRCRAFT, AND A METHOD OF USING A PISTON ENGINE IN A POWER PLANT HAVING A CONVENTIONAL GEARBOX
    Publication number: 20110290200
    Abstract: The present invention relates to a power plant (10) having a piston engine (30) driving a conventional gearbox (20) dimensioned for a turbine engine, said piston engine (30) comprising a first row (31) of pistons (33) presenting an angle (?) relative to a second row (32) of pistons (33). The power plant includes a flywheel (50) and a torsion shaft (40) set into motion by said pistons (33), said torsion shaft (40) being arranged between the first and second rows (31, 32) of pistons.
    Type: Application
    Filed: May 19, 2011
    Publication date: December 1, 2011
    Applicant: EUROCOPTER
    Inventors: Jérôme Chemin, Thomas Manfredotti, Christian Mercier
  • MECHANISM FOR ATTENUATING TORQUE PULSATIONS BETWEEN AN ENGINE AND A ROTORCRAFT ROTOR DRIVEN BY THE ENGINE
    Publication number: 20110085889
    Abstract: The invention provides a mechanism for attenuating torque pulsations between an engine (2) and a rotor (1) of a rotorcraft. Torsion means (5) are interposed between the driving and driven shafts and comprise a torsion shaft (6) axially engaged with the drive shaft (3) and the driven shaft (4) an inlet shaft (9) and an outlet shaft (10) respectively engaged with the drive and driven shafts (3, 4) a lever system (7) that extends radially relative to the torsion shaft (6) and that has the inlet and outlet shafts (9, 10) hinged thereto via points (11, 12) that are spaced apart; and a mass (8) carried by said lever arm (7) at its free end (13) radially farthest away from the axis along which the torsion shaft (6) extends.
    Type: Application
    Filed: October 4, 2010
    Publication date: April 14, 2011
    Applicant: EUROCOPTER
    Inventors: Thomas Manfredotti, Jerome Chemin