Condition Or Direction Responsive Device Patents (Class 60/440)
  • Patent number: 7356992
    Abstract: With a hydrostatic multi-motor drive unit with a least two hydraulic motors acting upon a common load, a solution should be created, with which a further operating range is covered by the use of several motors and at the same time a simple as possible and problem free coupling of the motors is assured. Furthermore, a method for controlling the drive unit is indicated, which permits continuous transitions between the different operating ranges. This is achieved in that the motors (2, 3) are connected with each other through at least one freewheel device (4), in which the motor (2) arranged after the freewheel device has a variable displacement volume.
    Type: Grant
    Filed: November 6, 2003
    Date of Patent: April 15, 2008
    Assignee: CNH Baumaschinen GmbH
    Inventors: Monika Ivantysynova, Jürgen Weber
  • Patent number: 7247113
    Abstract: In a working vehicle, a variable output HST and a planetary gear unit are connected with an engine, which is supported on a vehicle frame closer to a first side of a fore and aft direction of the vehicle in vibration free manner so as to together constitute a driving-side unit, which is integrally supported on the vehicle frame in vibration free manner. A transmission case of a transmission is fixedly supported on the vehicle frame closer to a second side of the fore and aft direction of the vehicle with a distance from the driving-side unit. An output element of the planetary gear unit is operatively connected with a wheel drive train of the transmission via a shaft coupling extending along the fore and aft direction of the vehicle.
    Type: Grant
    Filed: April 14, 2005
    Date of Patent: July 24, 2007
    Assignee: Kanzaki Kokýukoki Mfg. Co. Ltd.
    Inventors: Toshiyuki Hasegawa, Atsuo Yoshina, Shigenori Sakikawa