A cast alloy body of cylindrical form with longitudinal flutes or {HEAD ~ grooves} in a tubular casing has liquid fuel passed through the casing and in contact with {TAIL ~ the body} 
A cast alloy body of cylindrical form with longitudinal flutes or { HEAD ~ grooves } in a tubular casing has liquid fuel passed through the casing and in contact with { TAIL ~ the body }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL