Exhaust port liner system for engines

Details Exhaust port liner system for engines Exhaust port liner system for engines

F - Mech Eng,Light,Heat,Weapons

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F02F 1/42 (2006.01) F01N 13/14 (2010.01) F02B 77/02 (2006.01) F02F 1/24 (2006.01)

Patent

CA 1054881

ABSTRACT OF THE DISCLOSURE An exhaust port liner for an internal combustion engine has an entrance opening at one side through which exhaust gases are directed by means of a cylindrical sleeve fixed relative to the exhaust valve seat. A portion of the poppet type exhaust valve extends through the sleeve and into the entrance opening. The liner is secured to the valve stem guide and is also supported near its discharge end. The sleeve may be fixed to a heat insulating ring abutting the valve seat, or the sleeve may be threaded directly to the valve seat.

250026

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