Electronic valve control

Frederic Breitwieser frederic.breitwieser at xephic.dynip.com
Thu Feb 12 16:14:06 GMT 1998


>If you use a solenoid on a level which is connected to the rod, the
>opening and closing will take less effort than a spring, and provide
>just as good a seal.

Actually, take it a step further.  We all want more flow, so the "valve" is
nothing more than a cylinder, with a large 3" hole on the bottom of the
rod, with a 3" hole on one side, with a smooth, radiused 90 degree bend
internal to the cylinder, connecting the two holes.  There are four positions.

Connect cylinder to the intake.
closed
Connect cylinder to the exhaust.
closed

repeat.

no springs, no problems, and in theory, you can make the internal bore of
this rotating cylinder valve assembly almost as large as the bore of the
cylinder.  And rotating the units is very easy, they can be gear driven so
there are no chains to wear out, no rockers, no valve springs, nada.  Less
moving parts.

One can control the rotation of the valve cylinder either mechanically, or
electronically with a stepper motor.  The rotation of the cylinder has to
be 1/2 the speed of the crank, which motors exist to do.  Small motors
which rotate (rather than linear as with "ordinary" valve train) easily
break into the 10,000 RPM range.  And stepper circuits exist.

Let make one :)
Frederic Breitwieser
Bridgeport, CT 06606
http://www.xephic.dynip.com/

1993 Supercharged Lincoln Continental
1989 4-Door Softtop Humvee (Hummer)
2000 Buick GTP (Mid-engine track car)

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