[Vwdiesel] Gav's gov'nors

[gary]

You are right. The governor is a fly-weight device.

Actually, this governor does it all.

The accelerator lever does nothing more than put MORE spring tension
against the governor.The difference between idle and full throttle is
simply spring tension.

More throttle=> more spring pressure=> the governor collapses slightly=>
a lever moves the control collar to inject more fuel=> rpm increases=>
the fly-weights overcome the added spring tension=> pushes the lever
back=> moves the control collar to inject less fuel.

This is a pretty simplistic explanation. The levers are actually a
sophisticated combination of different levers and pivot points.


-Gary


On Sat, 2004-06-12 at 10:20, Mark Shepherd wrote:
> I thought that the governor consisted of a fly-weight mechanism and
> some other grovey stuff that somehow control the amount of fuel that
> the high pressure section delivers to the injectors, and thereby,
> tries to make the engine to run at a speed that corresponds to the
> position of the speed control lever.  If this is how the governor
> works, then is not the pump doing exactly the same thing when the
> control lever is rotated by the accelerator cable as it does when it
> is resting on the idle speed adjusting screw?