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