This invention belongs to {TAIL ~ the technical field} of the internal combustion engine, and relates to the improvement of combustion in {HEAD ~ the combustion chamber} of an internal combustion engine with a cylinder head 
This invention belongs to { TAIL ~ the technical field } of the internal combustion engine , and relates to the improvement of combustion in { HEAD ~ the combustion chamber } of an internal combustion engine with a cylinder head
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH