Engine cylinder exhaust port

Details Engine cylinder exhaust port Engine cylinder exhaust port

1979-03-19

1980-10-21

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

123188M, 123193H, F02F 142

Patent

active

042286530

ABSTRACT:
Airflow through a sharply curved engine cylinder exhaust port is increased by the provision of a flow guide comprising a smoothly curved free standing bump on the floor of the port's exit portion rising smoothly upward from a sharply curved wall portion near the throat and then declining smoothly into the floor of the exit portion. The bump is configured to reduce turbulence in the fast flowing central mass of exhaust gases flowing through the port while providing increased laminar flow area for gases to flow along the port wall surfaces.

REFERENCES:
patent: 2578932 (1951-12-01), Hinze
patent: 3273551 (1966-09-01), Julien
patent: 3507261 (1970-04-01), Myers
patent: 3557766 (1971-01-01), Stark

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