> Big Snip Of course we must control the heat input into the pressure
   cooker
    > ....................ah
    >
    > .........................I have an idea a cooling system to get
   rid of
    > the excess heat :)
    >
    > .................................................... sorry about
    > that.....................
    >
    > Regards David Gaze
    >
    >
    > If you continue to heat the water the pressure will continue
    > to build eventually bottoming out the piston and cause a major
    > failure somewhere else. Steam boilers are known for blowing
    > up from time to time.
    >
    > If you have steam coming out of your cowl in a simple pressure can
    > system with a pressure relief cap you can back off on the power
   and find
    > a place to land while you still have some coolant left in the engine.
    > If you are lucky the engine temp will drop low enough at reduced
   power
    > to stop generating steam. In other words you have a warning.
    >
    > With an accumulator system the first warning is a burst radiator
    > with all the coolant departing overboard shortly through the hole.
    >
    > Just like a steam locomotive engineer you need to keep your
    > eye on the temp pressure gage.
    >

    > Paul Lamar ...No rotor no motor.



    > Paul ..this is a VERY important safety consideration and needs to be
   repeated in case anyone slept thru the msg. DM

   Dave,
   first it is important to know the ultimate pressure the cooling
   system can rise to without failure - hoses, radiator,heater, motor,
   pump seal, etc.  Set a pressure relieve valve to bleed off below
   this max  temperature-pressure.  Also I think a redundant idiot
   light would be cheap insurance, a few million cars on the road have
   them.

   Actually, the closed system would have more protection against
   failure than the overflow system in that the higher pressure would
   raise the boiling point of the coolant and also increase cooling in
   the radiator because of the higher temperature differential between
   the coolant and the air going thru the radiator..   Some people have
   used A/C condensers which can withstand over 400 psi.

   Joel

We have just in effect eliminated the traditional over flow system since nobody
seems to like it :) Just so everybody is on the same page there four systems
under discussion.

1)The traditional coolant recovery tank system AKA the over flow system.
 Been around for 50 years.

2)The pressure tank system. Continental, Dave Leonard, Al Gietzen,
 Mazda, Mercedes, Volvo, P51, P38, etc., etc.. with pressure relief.

3)The piston accumulator system with out pressure relief below the piston.
 (Air on top.)

4)Variation on 3. with pressure relief below the piston. Jerry Hey's idea.


Paul Lamar ...No rotor no motor.

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