Two-cycle engine

Details Two-cycle engine Two-cycle engine

1998-09-17

1999-06-01

Yuen, Henry C.

Internal-combustion engines

Two-cycle

Whirl through piston-controlled ports

123 65A, 123 65W, F02B 7502

Patent

active

059080132

ABSTRACT:
A two-cycle engine for boosting intake pressure for higher performance per displacement. The two-cycle engine includes a crankcase having a blower housing and a crankshaft therein extending through the blower housing. The blower housing has an intake opening and a discharge opening. An impeller is disposed around the crankshaft. At least one cylinder is provided with a corresponding piston therein. The cylinder has an exhaust port located on a side wall of the cylinder. An intake conduit extends along the side wall of the cylinder in a spiral rising towards the top of the cylinder and passing beneath the exhaust port to terminate at a pair of intake ports in the side wall of the cylinder. A boost plenum has an intake tube fluidly connecting the discharge opening of the blower housing to the boost plenum. The boost plenum also has a discharge tube fluidly connecting the boost plenum to the intake conduit.

REFERENCES:
patent: 1329811 (1920-02-01), Smith
patent: 5307792 (1994-05-01), Takahasm et al.

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