Variable Displacement pumps
Variable Displacement pumps
(OP)
hi
Can someone explain to me how a variable displacement pump works in a power steering system and the benifits of it, if any?
cheers
rich
Can someone explain to me how a variable displacement pump works in a power steering system and the benifits of it, if any?
cheers
rich





RE: Variable Displacement pumps
I don't know how they vary the flow rate, there's probably some sort of variable dead volume in the pump, or they could be really nasty and just short the output back to the input (which is what a conventional pump does to limit the pressure). They could use a swash plate design, but that sounds a little esoteric for the cheap and nasty world of PAS pumps.
Cheers
Greg Locock
Please see FAQ731-376: Eng-Tips.com Forum Policies for tips on how to make the best use of Eng-Tips.
RE: Variable Displacement pumps
Regards
eng-tips, by professional engineers for professional engineers
Please see FAQ731-376: Eng-Tips.com Forum Policies for tips on how to make the best use of Eng-Tips Fora.
RE: Variable Displacement pumps
Cheers
Greg Locock
Please see FAQ731-376: Eng-Tips.com Forum Policies for tips on how to make the best use of Eng-Tips.