Royce Wise wrote:

Paul, anyone else know how many degrees ATDC (ATC) on the power stroke that the
combustion process is pretty much spent? Put another way, how many degrees ATC
before the power of the charge is no longer propelling the rotor.
Royce

Never mind, I found the answer on Paul Yaw's site.
Royce

What was the answer Royce?

Paul Lamar

90ø ATDC The expansion cycle has started, and is already 45ø past the point of maximum
torque transfer to the eccentric shaft, which occured at 45ø ATDC.

 135ø ATDC The expansion stroke continues, but the torque transferred to the output
shaft is now down to about 35% of its peak.

 180ø ATDC The exhaust port is still closed, and the torque transfer to the eccentric
shaft is approximately 15% of its peak.

 225ø ATDC At this point, the exhaust port has been open for approximately 30ø, and
exhaust flow is quite high.

Royce

 
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