Expansion chamber for two-cycle engine

Details Expansion chamber for two-cycle engine Expansion chamber for two-cycle engine

1996-10-24

1998-07-28

Okonsky, David A.

Internal-combustion engines

Two-cycle

Whirl through piston-controlled ports

123 65EM, 60314, 60324, F01N 300

Patent

active

057850143

ABSTRACT:
Expansion chambers for two-cycle engines include a moveable closure piston which selectively increases the flow cross-sectional area geometrically upon increasing back pressure. The improved expansion chamber thus results in better regulation of the back pressure in the two-cycle engine. Several expansion chamber embodiments are disclosed.

REFERENCES:
patent: 1818796 (1931-08-01), Feyens
patent: 2983911 (1961-05-01), Brafford
patent: 3254483 (1966-06-01), Martin et al.
patent: 3665712 (1972-05-01), Tenney
patent: 3969895 (1976-07-01), Krizman
patent: 4669585 (1987-06-01), Harris
patent: 4714056 (1987-12-01), Tottori et al.
patent: 4903486 (1990-02-01), Finkle
patent: 4909034 (1990-03-01), Kakuta
patent: 5579638 (1996-12-01), Archer

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