EFI for Propane

Greg Hermann bearbvd at sni.net
Mon Mar 1 16:09:10 GMT 1999


>On Fri, 26 Feb 1999, Raymond C Drouillard wrote:
>
>> Date: Fri, 26 Feb 1999 01:57:27 -0500
>> From: Raymond C Drouillard <cosmic.ray at juno.com>
>> To: diy_efi at efi332.eng.ohio-state.edu
>> Subject: Re: EFI for Propane
>>
>>
>> >....What about cooling the lpg to a point where its liquid, then we
>> >could use regular efi injectors, we dont have to create a box that must
>> >regulate injection time for the variable pressure that temperature is
>> doing
>> >
>> >for lpg fuel pressure.Can a Lucas disc type injector cope with the
>> >pressure?
>> >What about two injectors in series?One ontop of the other?
>> >I have been thinking of just pumping twostroke oil into the lpg tank
>> >to get a mix.
>> >Espen Hilde
>>
>> I was thinking of feeding the liquid into the injecter at perhaps 330
>> PSI, and using something similar to a diesel injecter on the other end
>> that opens at 300 PSI.  That way the injecter would see a 30 PSI
>
>it may be more then 300psi require to keep the propane liquid, and a pump
>would be needed to get the liquid to the warm end of the fuel system
>
>> difference in pressures, and be dealing with a warm liquid.  The standard
>> injecter would be used as a valve, and the propane would vaporize once it
>> leaves the injecter (regulater or whatever you want to call it).

Trouble is, it will begin to vaporize (flash) on its way through the injector.

Greg
>>
>> I would rather have an injecter that can handle the 300 PSI without such
>> a jerry rig, though.
>
>on the way home I was thinking about this and a major problem would be
>vapour lock the vapour pressure of gas is less then propane
>
>
>just my $0.02
>
>> Ray
>>
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>
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