[alfa] RE: Wankel rotary

["Chris Landry" <chris@xxxxxxxxxxxxxxxxxxxxx>]

> in a wankel engine :
> for each orbit of one rotor, there are three separate and complete
> 4-stroke combustion cycles.  this makes 6 combustions per
> revolution of the 2 rotors in an engine.  but the "crankshaft",
> called an eccentric shaft, spins at 3 times the rotor speed.  so
> you end up with 2 combustions per measured engine revolution,
> like a 4-banger.   its really an ingenius design with a true
> 4-cycles ( just like your alfa twin-cam or v6 ), but valve-less ports
> like a 2-cycle.  and no reciprocating parts - only spinning and
> orbiting bits.
> 

. . . and only something like 60-70 separate seals (compression and oil)
and springs that need to be assembled to each rotor!  For example, each
apex seal is three pieces, plus two springs.

chris landry
84 GTV6
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