I was looking through the Jan Norbye book  "The Wankel Engine"
for charts on parallel cooling and ran across this comment on
how P-ports work.

Dave might be able to translate some of this for us.
Paul Lamar

Translations:
1st graph
Einlassvorgang = Intake process
Volumenverlauf = volume curve, (volume progression)
Kammervolumen = chamber volume
Einlass schliesst = inlet closes
Exzenterwelle = eccentric shaft
I am not sure what the abbreviations stand for exactly, but ‘ÜT’ is
chamber volume at open ports (or TDC), ‘AT’ is BDC and ‘ZT’ chamber volume
at ignition (or TDC).
Ü = Übergang = transition, Z = Zündung = ignition,
VC = volume at TDC, VH = Hubvolumen = displacement volume,

2nd graph
Kolbenstellung vor und nach ZT = piston position before and after TDC at
ignition,
Flammenfrontverlauf über der Laufbahn = flame front
Zündkerzenbohrung = ignition bore hole
Mittlere Gasgeschwindigkeit = mean gas velocity
Kolbenstellung = piston position
Verlauf der Gasgeschwindigkeit in der kleinen Achse = progression of gas
velocity at the short axis,
180° vor ZT = 180° BTDC,
180° nach ZT = 180° ATDC,

Rolf

Thanks Rolf.

Paul Lamar ...No rotor no motor.

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