Twin-piston two-stroke engine

Details Twin-piston two-stroke engine Twin-piston two-stroke engine

1989-05-05

1990-10-23

Okonsky, David A.

Internal-combustion engines

Multiple piston, common nonrestrictive combustion chamber

Four-cycle

123 57B, 123307, 123661, 123 37, 123309, F02B 2508

Patent

active

049643797

ABSTRACT:
Two pistons in adjacently situated cylinders in a twin-piston two-stroke engine share a common combustion chamber. To ensure low exhaust gas emissions with low consumption, a lean mixture is burnt whereof the complete combustion is made possible by designing the combustion chamber so that circulation of the ignited mixture takes place and the mixture burns through rapidly. The twin-piston two-stroke engine may also be devised to run with a stratified charge, the centrally arranged partition in the twin cylinder providing excellent separation between the lean and rich mixture portions.

REFERENCES:
patent: 1540459 (1925-06-01), Burtnett
patent: 1645797 (1927-10-01), Burtnett
patent: 1660860 (1928-02-01), Burtnett
patent: 1794829 (1931-03-01), Burtnett
patent: 2014771 (1935-09-01), Mallory
patent: 2184603 (1939-12-01), Portmann
patent: 2196252 (1940-04-01), Daub
patent: 4779581 (1988-10-01), Maier

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