Auxiliary exhausting device

Details Auxiliary exhausting device Auxiliary exhausting device

1991-02-20

1992-05-12

Okonsky, David A.

Internal-combustion engines

Two-cycle

Whirl through piston-controlled ports

123 65V, F02B 7502

Patent

active

051117789

ABSTRACT:
An auxiliary exhausting device for improving the scavenging efficiency and the combustion efficiency of a two-stroke engine is provided. The auxiliary exhausting device includes an inner rotating member and an outer rotating member both having an opening communicable with an auxiliary exhausting port, two timing wheels respectively fixed to the inner and outer members with the one, which is fixed to the inner member, driven by the crankshaft, a positive driving device rotating the outer member, and a controller responsive to the operating condition of the engine for so controlling the positive driving device that the outer member is always desiredly rotated.

REFERENCES:
patent: 2720872 (1955-10-01), Yokoi
patent: 4121552 (1978-10-01), Mithuo et al.
patent: 5000131 (1991-03-01), Masuda

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