Two-cycle engine

Details Two-cycle engine Two-cycle engine

1982-12-03

1986-01-28

Feinberg, Craig R.

Internal-combustion engines

Two-cycle

Whirl through piston-controlled ports

F02B 2504

Patent

active

045664099

ABSTRACT:
It is an object of this invention to provide a two-cycle engine which enables the prevention of carbon in the exhaust port, and ensures a minimum reduction in the open area of the exhaust port for a long period of time. This is attained by including a groove or shoulder formed in at a least a portion of the wall of an exhaust passage immediately behind an exhaust port, and extending along the edge of an opening defining the exhaust port to disable carbon to adhere easily to the exhaust port, or prevent any thick layer of carbon from adhering to the exhaust port so that the carbon layer may have only a limited strength and be easily removed.

REFERENCES:
patent: 1743558 (1930-01-01), McCabe
patent: 2735260 (1956-02-01), Laubender
patent: 3545354 (1976-03-01), Johnston
patent: 4341188 (1982-07-01), Nerstrom

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