TWO-STROKE INTERNAL COMBUSTION ENGINE Russian patent published in 2023 - IPC F02B33/04 F01M3/00 F01M13/02 

FIELD: two-stroke internal combustion engines.

SUBSTANCE: two-stroke internal combustion engine contains a piston (5), a connecting rod, a crankshaft (20) and a working cylinder (3) with inlet and outlet ports (8) and (9). The check valve (7) is located in the inlet port (8). The crank chamber (6) is connected to the working cylinder (3) through the purge channel (10). The lubrication system is made with a dry sump (13) and an oil pan (19). The working cylinder head is made with a combustion chamber (1) with spark plugs (4) and a fuel supply device (2). The oil separator (11) is connected to the volume of the working cylinder (3) through the purge channel (10) and through an additional channel (16) to the crank chamber (6). The oil separator (11) is also connected by an oil return channel (17), through a check valve (18), to the crank chamber (6).

EFFECT: reducing the toxicity of exhaust gases and reducing oil consumption.

1 cl, 1 dwg