By reducing thermal resistance at {TAIL ~ the thick walled portion} of the end plate, heat from compression chambers are conducted to radiating fins, thereby suppressing the transfer of the heat to {HEAD ~ the thin walled portion} 
By reducing thermal resistance at { TAIL ~ the thick walled portion } of the end plate , heat from compression chambers are conducted to radiating fins , thereby suppressing the transfer of the heat to { HEAD ~ the thin walled portion }
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH 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