Two-cycle engine with fuel injection

Details Two-cycle engine with fuel injection Two-cycle engine with fuel injection

1980-03-07

1981-09-22

Burns, Wendell E.

Internal-combustion engines

Two-cycle

Rear compression

123 73R, 123 73B, 123 73C, 123 59B, 123 55VS, 123472, F02B 3304, F02M 5100

Patent

active

042903947

ABSTRACT:
The invention contemplates electronically controlled fuel-injection for a single or multiple-cylinder two-cycle internal-combustion engine wherein each cylinder has its own independent crankcase region in which to receive and compress inlet air and fuel, prior to delivery of combustible mixture to the head or combustion end of the cylinder. Fuel is injected directly into each crankcase region during only a portion of the stroke involving induced intake of air therein, i.e., during only a portion of the rise of each piston in its approach to top-center position, and while pressure within the crankcase region is relatively uniform. The time-duration of actual injection is relatively short, to enable identical injections in each cylinder, each such injection being identically timed with relation to position and displacement of its associated piston.

REFERENCES:
patent: 874822 (1907-12-01), Baird
patent: 1999520 (1935-04-01), Stout
patent: 2397457 (1946-03-01), Krenzke
patent: 3280805 (1966-10-01), Muller
patent: 3472211 (1969-10-01), Meininger
patent: 4204489 (1980-05-01), Onishi

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