[Diy_efi] duty cycle

[Adam Wade]

--- Craig Dunn <dunnbeetle at bigpond.com> wrote:

> Am i on the right track or how does duty cycle work

Duty cycle does not vary with engine rpm like dwell
angle requirements do.  It is a measure of the
percentage of time the injector is energized; 100%
duty cycle is fully open all the time, and 0% is
closed all the time.  50% is open half the time,
although there is lag in opening and closing the
pintle, so actual fuel flow is slightly different than
half of the 100% duty cycle rate.  If you wanted the
engine to receive a quantity of fuel that increased
linearly with engine speed, then the percentage of
duty cycle would also increase linearly, in time with
engine rpm.

Hope that makes it a bit more clear!

=====
| 82 Honda CX500 Turbo (Cassandra)  90 Kwak Zephyr 550 (Daphne) |
| "It was like an emergency ward after a great catastrophe; it  |
|   didn't matter what race or class the victims belonged to.   |
|  They were all given the same miracle drug, which was coffee. |
|   The catastrophe in this case, of course, was that the sun   |
|     had come up again."                    -Kurt Vonnegut     |
| M/C Fuel Inj. Hndbk. @ Amazon.com -  http://tinyurl.com/6o3ze |


		
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