The gas economizer 2, wherein one end of a tube is connected to the upper shell in register with the opening in the upper shell and {TAIL ~ the other end} of the tube is adapted to be operatively coupled to an intake manifold of {HEAD ~ an internal combustion engine} 
The gas economizer 2 , wherein one end of a tube is connected to the upper shell in register with the opening in the upper shell and { TAIL ~ the other end } of the tube is adapted to be operatively coupled to an intake manifold of { HEAD ~ an internal combustion engine }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH 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 HEAD