Exhaust system for four-stroke internal combustion engines

Details Exhaust system for four-stroke internal combustion engines Exhaust system for four-stroke internal combustion engines

1978-05-30

1980-06-10

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

Pulsed, timed, tuned or resonating exhaust

F02B 2702

Patent

active

042066000

ABSTRACT:
A high-efficiency combustion gas exhaust system for four-stroke internal combustion engines. This system uses two overlapping converging conical pipes to provide excellent scavenging at high piston speeds without the usual adverse effects at idle or moderate speeds. A generally conical converging first pipe is installed over the exhaust gas opening in the engine head. A second pipe with a generally converging conical introductory section is secured in an overlapping relationship to the first pipe. Certain size relationships among these components are important in obtaining optimum performance.

REFERENCES:
patent: 2147200 (1939-02-01), Kadenacy
patent: 2168528 (1939-08-01), Kadenacy
patent: 3716992 (1973-02-01), Stahl
patent: 3946558 (1976-03-01), Beekhuis
patent: 3983696 (1976-10-01), Pflugfelder

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