Hydraulic hybrid garbage truck
Battery-assisted trucking was not the only technology on display. This garbage truck, one of only a handful, uses a pressured hydraulic tank to store energy. Pressure in the tank is built during braking and then released to power the truck during acceleration. The pressure in the tank is over 1,800 pounds per square inch. The hydraulic-assist technology adds about $40,000 to a truck that costs about $250,000. The fuel efficiency improvement from this system is about 20 percent.
October 6, 2009 10:31 AM PDT
Photo by: Martin LaMonica
| Caption by: Martin LaMonica
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