Engine exhaust port liner

Details Engine exhaust port liner Engine exhaust port liner

1976-04-16

1978-01-24

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

123191A, 123193H, F01N 714, F01N 718

Patent

active

040696677

ABSTRACT:
An exhaust port liner for an internal combustion engine has an entrance opening at one side into 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 inserted into the exhaust port from the discharge end of the exhaust port. The liner is secured to the valve stem guide and is also supported near its discharge opening. The sleeve may be fixed to an insulating ring abutting the valve seat, or the sleeve may be threaded directly to the valve seat.

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