Quote:
Originally Posted by oil pan 4
A hydraulic accumulator will not work since the steering box bypasses fluid when there is no power assist needed to turn the wheel.
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Alright, what about some solenoid valves around the box to bypass fluid when it isn't needed? Or a solenoid to turn the accumulator off when no power is wanted.
Quote:
Originally Posted by oil pan 4
Just forget about the accumulator. The power steering system works completely opposite of what you would need to make an accumulator work.
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From my googling I get a rough number of 2-4gpm of flow requirement for PS boxes. No idea what mine actually uses. But let's say you have a one gallon accumulator at 3000 PSI and your steering box needs 3GPM at 1000PSI. You should be able to have full power steering for 1 full minute with that reservoir and a regulator and no other power input. That would be much more than one turn or stop. And I really only need power steering when the vehicle isn't moving, any other time the solenoid valves could be off.
They have been doing a system like this for the hydroboost brakes in bigger trucks recently. They have an electric hydraulic pump and a small accumulator in the event of power loss. I'd like to do my brakes like that with a totally separate pump for it.
I'm just curious, how do you plan on turning your pump on and off? Manual switch? Or?