Lambda Valve

[Robert Harris]

Before anyone else runs off into fantasy land, it might help to know what a
"Lambda Valve" is.   What it most definitely is not is a Fuel Pressure
Regulator in any classical sense.

Control fuel comes from the pump thrum the control pressure regulator - which
varies CONTROL fuel pressure with coolant temperature and sometimes manifold
pressure.   Also known as warm up regulator.  In parallel with the lower
control chambers in the fuel distributer is the Lambda Valve.  It looks
similar to a Fuel Injector but its not.  It opens and closes in a similar
manner, but its opening and closing do not meter fuel.  Rather the amount of
time the valve remains open - bleeding control fuel back to the tank -
controls the pressure in the lower chambers of the differential pressure
valves.  This in turn, changes upper chamber pressure to change the pressure
drop and change enrichment.

Simple terms - its a solenoid valve - pure plain and simple.  Its on time is
determined by the pulse width.  Open Closed.   That's it that's all there is.


But - it can be used for anything you want.  A Frequency/Pulse width modulated
valve that can handle up to about 100 PSI.   Think about it - you might come
up with a dark side idea.


1963 Ford C-600 Prison Bus Conversion "Home"
1971 Lincoln Continental 460 "Christine"
1972 "Whale" Mustang awaiting transplant
1978 Dodge Long Bed Peeek Up "Bundymobile"

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