In another embodiment, the rotary slide valve has {HEAD ~ a rotor} which is formed by {TAIL ~ the crankcase} and a stator which is a ring housing 
is formed by
In another embodiment , the rotary slide valve has { HEAD ~ a rotor } which is formed by { TAIL ~ the crankcase } and a stator which is a ring housing
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH