Hydromechanical Variable Transmission System

Dana introduces the hydromechanical variable transmission system to help the fuel efficiency of off-highway vehicles.

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Dana Holding Corporation announces the company’s lineup of fuel-efficient, integrated drivetrain systems for construction and material-handling vehicles. These drivetrain systems, such as those for 20-ton front-end loaders, utilize a hydromechanical variable transmission (HVT) system, which is a cooperative design between Dana and Bosch Rexroth AG.

  • Provides fuel savings of more than 20% 
  • Improves productivity by enabling sensitive, precise vehicle positioning and stepless drive with no interrupted acceleration
  • Occupies same space within drivetrain system as conventional torque converter transmissions while allowing for engine downsizing
  • Decouples engine speed from drive speed to optimize operating point of diesel engine  
  • Reduces maintenance costs by utilizing hydrostatic braking and wear-free directional reversal
  • Applications include vehicles requiring 115 to 360 horsepower (90 to 270 kW) such as front-end loaders, graders, forestry skidders, and other off-highway equipment
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