Trying to make sense of Racetronix injector flow numbers
02-08-2006, 04:42 PM
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Trying to make sense of Racetronix injector flow numbers I see this for the Delphi/Lucas 42#:
Part Number Delphi 01D030B (Lucas old 5208009, Lucas New 621031, Delphi old D3181AA)
Static Flow Rate: 42.29 lb/hr @ 43.5PSI (300kPa) or 320gm/min
Static Flow Rate: 48.83 lb/hr @ 58.0PSI (300kPa) or 370gm/min
Dynamic Flow Rate: 9.96 gm/pulse - 2.5ms pulse width and 10ms repetition rate @ 43.5PSI
My question relates to the static flow vs the dynamic flow
at 43.5PSI. If I do the math, the 9.96g/pulse, 10mS rep rate
gives me 9.96g/pulse*100pulse/sec*60sec/min=59760g/min.
At 25% open.
That's pretty much like 320g/min, accounting for a 1/4 duty
cycle. Yeah.
Something in that description does not add (multiply) up.
Anyone have an independent data source they know of, that
I could check out? Seems everywhere I look I see this same
description over and over but it makes no sense. If there were
sane numbers I think I could calculate an injector offset time
value (for nominal conditions at least) but this is just whack.
Part Number Delphi 01D030B (Lucas old 5208009, Lucas New 621031, Delphi old D3181AA)
Static Flow Rate: 42.29 lb/hr @ 43.5PSI (300kPa) or 320gm/min
Static Flow Rate: 48.83 lb/hr @ 58.0PSI (300kPa) or 370gm/min
Dynamic Flow Rate: 9.96 gm/pulse - 2.5ms pulse width and 10ms repetition rate @ 43.5PSI
My question relates to the static flow vs the dynamic flow
at 43.5PSI. If I do the math, the 9.96g/pulse, 10mS rep rate
gives me 9.96g/pulse*100pulse/sec*60sec/min=59760g/min.
At 25% open.
That's pretty much like 320g/min, accounting for a 1/4 duty
cycle. Yeah.
Something in that description does not add (multiply) up.
Anyone have an independent data source they know of, that
I could check out? Seems everywhere I look I see this same
description over and over but it makes no sense. If there were
sane numbers I think I could calculate an injector offset time
value (for nominal conditions at least) but this is just whack.
