Exhaust control system for two-cycle engine

Details Exhaust control system for two-cycle engine Exhaust control system for two-cycle engine

1985-03-19

1986-11-18

Feinberg, Craig R.

Internal-combustion engines

Two-cycle

Whirl through piston-controlled ports

123190A, F02B 7502

Patent

active

046229280

ABSTRACT:
An exhaust control system for a two-cycle engine wherein the cross-sectional area of an exhaust is controlled in accordance with the rpm. of the engine by opening and closing at least one auxiliary exhaust passage with respect to a main exhaust passage. The main exhaust passage and the auxiliary exhaust passage connected to the cylinder are located parallel to each other circumferentially of the cylinder, and the rotary valve in the form of a shaft disposed parallel to the center line of the cylinder is operative to open and close the auxiliary exhaust passage with respect to the main exhaust passage in accordance with an increase and a decrease in the engine speed.

REFERENCES:
patent: 1154479 (1915-09-01), Briney
patent: 1174818 (1916-03-01), Bubar
patent: 1179632 (1916-04-01), Irvine
patent: 2008186 (1935-07-01), Fink
patent: 4121552 (1978-10-01), Mithuo et al.

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