Parker Hannifin gaining traction with RunWise HD hydraulic hybrid; developing CNG-based HD system, next-gen MD system
Green Car Congress
OCTOBER 9, 2014
The two-speed hydrostatic drive runs at low speed from 0-25 mph and high speed from 26-45 mph for urban driving, then combines with mechanical direct drive for more efficient operation at highway speeds (46-60+ mph). CNG concept. These motors drive the output shaft through a simple two-speed gear reduction (Lo and Hi).
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