Patents by Inventor ALEXANDER GREINDL

ALEXANDER GREINDL 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).

  • Track maintenance machine with an autonomous and redundant power supply and method for operating an energy supply system of a track maintenance machine
    Patent number: 10780898
    Abstract: A track maintenance machine includes a machine frame being movable on a track, a plurality of working units, and a combustion engine to be connected by a clutch to a transfer case. Hydraulic pumps for supplying a plurality of hydraulic drives of a hydraulic system are connected to the transfer case. An electric motor is provided as an alternative drive of the transfer case for permanent energy supply of the working units and drives. The electric motor is coupled to an intermediate circuit to be supplied with electric energy by a vertically adjustable pantograph to be applied to a catenary of the track. A generator or an electric energy storage device is provided for alternative energy supply of the intermediate circuit. A method for operation of an energy supply system is also provided.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: September 22, 2020
    Assignee: Plasser & Theurer Export von Bahnbaumaschinen Gesellschaft M.B.H.
    Inventor: Alexander Greindl
  • TRACK MAINTENANCE MACHINE WITH AN AUTONOMOUS AND REDUNDANT POWER SUPPLY
    Publication number: 20190016348
    Abstract: A track maintenance machine includes a machine frame being movable on a track, a plurality of working units, and a combustion engine to be connected by a clutch to a transfer case. Hydraulic pumps for supplying a plurality of hydraulic drives of a hydraulic system are connected to the transfer case. An electric motor is provided as an alternative drive of the transfer case for permanent energy supply of the working units and drives. The electric motor is coupled to an intermediate circuit to be supplied with electric energy by a vertically adjustable pantograph to be applied to a catenary of the track. A generator or an electric energy storage device is provided for alternative energy supply of the intermediate circuit. A method for operation of an energy supply system is also provided.
    Type: Application
    Filed: August 26, 2016
    Publication date: January 17, 2019
    Inventor: ALEXANDER GREINDL