what happened to Ford's hydraulic hybrid truck ?

Lynn

I have a hard time seeing how they can store enough energy to make this practical. The fluid is incompressible so they would have to be compressing a huge spring at really high pressures in the accumulator it would seem to me. What's going to happen in an accident when the lines get snapped off....

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There is a bag of nitrogen gas in the tank. That is where the compression takes place. BTW, there are actually two tanks, a high pressure and a low pressure. Don't ask me why though.

If the lines get snapped off in a accident then everything is going real bad and those

10 gallons of hydraulic fluid just add to the nightmare of the 20 gallons of gasoline floating around the place.

Lynn