[Diy_efi] CIS EFI via Fuel Pump PWM

steve ravet sravet at arm.com
Wed Aug 7 13:10:57 GMT 2002



Mike wrote:
> 
> At 11:39 PM 5/8/2002 +0100, you wrote:
> >Erm, how will it take time to build up? Unless a "long" length of rubber
> >hose is used, it will be instant.
> 
> No - instant is not very likely, what does that mean micro seconds ?
> 
> You are forgetting the rotational
> inertia of the pump rotor... and the propensity for the fuel pressure
> regulator to oscillate during a step change in flow/pressure, most outlets

The point was to PWM the pump and get rid of the regulator.  And the
inertia of the pump rotor isn't affected by the length of fuel line.

--steve


-- 
Steve Ravet
steve.ravet at arm.com
ARM,Inc.
www.arm.com

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