I think Jeff (jeff.doddridge@gmail.com) cut these down for Mazdatrix.
 It does away with the round oil seals which I suspect we don't need.
 The oil seals have unavoidable friction which in theory burns slightly more
 fuel.
 My guess, based on these enclosed charts, is a 33% reduction in rotary
 engine
 friction. The engine will generate more power at the same RPM as well.

 Furthermore the side seals will get more oil for possibly lower side housing
 wear.

 It also cuts the weight of rotors so the counter weights are slightly
 lighter
 and the load on the rotor bearings is reduced at any given RPM.

 My Mazda Cosmo had melted oil seal O-rings and I drove it for years.
 It smoked like a radial engine when you started it up but then it stopped
 after a few
 seconds. I never noticed higher oil consumption.

 Mazda mentioned this when they were talking about the first engine they
 built.
 It ran fine but they had to add the oil seals to solve the start up smoke
 problem.

 I think they will work fine in a p-port aircraft or racing car engine.

 Sorry about the cell phone pictures. I forget my good camera when I visited
 Mazdtrix.

 Paul Lamar

 Paul,
 Best idea I have seen in a while. as long as the side seal gaps are done
 very well, this should work fine. I once worked a an engine that a school
 had rebuilt and the oil seals were installed upside down. Smoked like a navy
 smoke layer.... but the side seal gaps were big as well. I like the increase
 in corner seal oiling.... I think I might have to build one of these to
 try....
 Larry

 Great minds.........:)

 Paul Lamar

  One less point of failure too, keep us posted Larry
 Graeme Riley


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