The crankshaft is formed as a rotary slide valve which, in operation, connects {HEAD ~ the first working chamber} to {TAIL ~ the third working chamber} and the second working chamber to a working medium supply or discharge opening 
to
The crankshaft is formed as a rotary slide valve which , in operation , connects { HEAD ~ the first working chamber } to { TAIL ~ the third working chamber } and the second working chamber to a working medium supply or discharge opening
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH