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