Aussie Hardcore Wheelers
https://outerlimits4x4.com.au/
For a single stage PISTON AIR COMPRESSOR, it takes approx 1hp for every 3-4 cfm @ 120psiJimbo wrote:Ok before i go on does anyone know roughly the power needed to drive an a/c compressor? I'm guessing that a lot more power is needed to compress a/c gas due to the higher pressures.
What about if they use a compressor from a smaller vehicles a/c unit?
I can't be stuffed researching the physics - what happens at lower pressures, like inflating tyres from 20-40 psi?ricky1970 wrote:For a single stage PISTON AIR COMPRESSOR, it takes approx 1hp for every 3-4 cfm @ 120psiJimbo wrote:Ok before i go on does anyone know roughly the power needed to drive an a/c compressor? I'm guessing that a lot more power is needed to compress a/c gas due to the higher pressures.
What about if they use a compressor from a smaller vehicles a/c unit?
Tried to maintain 40 psi. Motor slowed down to about 800rpms (guess) before smoking. Used 2 2.5 hp off 10,000k winch.-Scott- wrote:This is an interesting project, so please keep us informed.
The load on the motor should change with the pressure being generated - for lower pressures, such as pumping up tyres, there shouldn't be as much load and the motor should have an easier life.
At higher pressures the compressor will be harder to drive and work the motor harder - which is where the worst problems will be.
bazzle - when you burnt out two motors, what pressure were you generating, and how fast was the motor running? DC motors generally don't like running slow - that's when they're most likely to overheat. At the same time, I wouldn't expect an AC compressor to generate much pressure at low speed, so I'm confused.
