Fuel injection plugs

[Howard Wilkinson]

Espen:
    This of course has been tried and is not very successful.  A more
ideal solution might be something akin to the variable displacement
engine built by Sandia Labs of Sandia New Mexico a number of years
back.  Idlers were used with a pivot point which could be varied and
resulted in variable stroke which controlled power output..... the
mechanism is somewhat similar in principle to how a Vice Grip
adjustment works.  I opened a Diesel injector pump of ancient vintage
from an old motor grader and found exactly the same mechanism used to
vary stroke on the injector pistons.
    The most reasonable way to control engine power output is by
gearing so that RPM is controlled by load.  A continuously variable
transmission system could allow an engine to operate at full throttle
all the time except at idle when it would need to be throttled.
Allowing the engine to always operate at WOT would greatly increase
efficiency.           H.W.

-----Original Message-----
From: Espen Hilde <mwichstr at online.no>
To: diy_efi at efi332.eng.ohio-state.edu
<diy_efi at efi332.eng.ohio-state.edu>
Date: Thursday, April 29, 1999 3:38 AM
Subject: Re: Fuel injection plugs


>
>I tought the bennefits from diesel was the fact that its run under
full
>compression during part trottle.making for a compleat and fast burn.
>The down side is that the exess air is cooling the combustion .
>a gasoline engine on part trottle is run at low compression (less
air)
>the burn is slower ,we have to try to compensate with more
ign.advance,
>and gets more negative work done and expose the internals of the
engine
>with heat for a longer period.(low rpm, high advance =long time
period for
>negative work)
>The cars are run at part trottle most of the time :-).......exept
from some
>folks
>like myself trying to be effective....(scratching my speed itch)
>We are running ineffichent engines all of us that uses gasoline ,most
of
>the
>time when we are cruising at part trottle.This is really not
acceptable.We
>are accepting it because at low output the engine is not using that
much
>fuel
>so a increase is not that much.
>One way to solwe this is to cut cylinders.Making it possible for the
>cylinder to operate closer to max torque where its most effective.
> Espen Hilde
>
>