Adjustable (D)-port insert header for internal combustion engine

Details Adjustable (D)-port insert header for internal combustion engine Adjustable (D)-port insert header for internal combustion engine

1980-01-31

1981-12-01

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

123193H, 138 39, F01N 708, F02F 100

Patent

active

043029353

ABSTRACT:
Individually adjustable D-port inserts for securement to an engine header and projecting therefrom into exhaust ports to occupy the stagnation areas thereof and in each instance placeable for fine tuning thereof to optimize flow, and removeable with the header without alteration of the exhaust port configuration established thereby.

REFERENCES:
patent: 2578932 (1951-12-01), Hinze
patent: 3422805 (1969-01-01), Dzianott
patent: 3623511 (1971-11-01), Levin
patent: 4159073 (1979-06-01), Liller
patent: 4195475 (1980-04-01), Rao
patent: 4228653 (1980-10-01), Sperry

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