[Diy_efi] Injector operation

Mike erazmus at iinet.net.au
Wed Jan 29 04:20:40 GMT 2003


cost is by FAR the main reason... Cost of
electrical construction, cost of machining or need to avoid
specialisation, cost of individual calibration/classing etc etc

rgds

mike
PS: After driving 2000K's up north for last week <sigh>... I'm back,
and wading through 464 emails <groan>


At 11:45 PM 23/1/2003 +1100, you wrote:
>
>Because A) there is a distinct advantage to having the
>fueling event occur for a small section of the
>engine's full cycle, most particularly at lower rpms
>and smaller throttle openings, and B) it's a lot
>easier to build a cheap, reliable, long-lived solenoid
>than stepper motor.
>
>A) This I need to learn more about.
>B) Solenoid valve can be easily proportioally controlled by modulating the
>current. This is done every day with hydraulic control valves.
>
>Do you know of any sites that have timing diags of injector on time vs inlet
>open time ? I am trying to get my head around the various injection
>strategies.
>
>Thanks
>Peter
>
>
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>

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