Two Piece Apex Seals?

j9fd3s · 10-02-2011, 11:50 PM

the rotary has 270 degree strokes, vs a piston engines 180 degree strokes, so there is more time to leak compression between chambers.

a 2 piece seal, can change length, so it always has the right end clearance vs a 1 piece seal that has to be set for "worst case" IE max temp. so the rest of the time it doesn't seal as well, because its too short.

a 3 piece seal can seal in the width of the seal groove.

10-02-2011, 11:50 PM	#4
j9fd3s Rotary Fanatic Join Date: Mar 2008 Posts: 123 Rep Power: 18	the rotary has 270 degree strokes, vs a piston engines 180 degree strokes, so there is more time to leak compression between chambers. a 2 piece seal, can change length, so it always has the right end clearance vs a 1 piece seal that has to be set for "worst case" IE max temp. so the rest of the time it doesn't seal as well, because its too short. a 3 piece seal can seal in the width of the seal groove.