FIELD: engines.
SUBSTANCE: invention can be used in internal combustion engines. Two-stroke opposed internal combustion engine comprises one or more pairs of working cylinders (2), with cylinder liners, exhaust, purge and inlet openings (3, 4, 5), a forced oil supply system, power take-off shaft (15), ignition plugs (21). Combustion chambers (1) are made in spaced pairs of cylinders (2) at angle of 180 degrees. Pistons (6) of the first and second pairs of working cylinders (2) are arranged mirror-like relative to each other and through rod (8) are connected to movable toothed frame (9) with possibility of reciprocal movements. Frame (9) is made in the form of two toothed racks (12), coupled at the ends with support semi-cylinders (10). Gear wheel (17) with incomplete number of teeth is installed on power take-off shaft (15) with possibility of alternate engagement with toothed racks (12). Longitudinal stops (18) are installed along the length of toothed racks (12). Part of surface of gear wheel (17), free from teeth, is made with variable radius between centre of shaft (15) of power take-off and line of contact of gear with surface of support semi-cylinders (10) of toothed frame (9). Each pair of working cylinders (2, 2*, 2.1, 2.1*) is equipped with separate crank chamber (19, 19*). Paired mirror pistons (6, 6*) are installed with possibility of simultaneous working stroke. Two pairs of mirror pistons (6, 6* and 6.1, 6.1*) with working cylinders are combined into group (20), in which gears (17, 17*) of the first pair of mirror pistons (6, 6*) are separated by angle of 180 degrees relative to second pair of mirror pistons (6.1, 6.1*). Gears (17) of all subsequent groups consisting of two pairs of mirror pistons (6) are separated by an angle determined from the expression α=180:n, where n is the number of groups of mirror pistons with working cylinders.
EFFECT: higher power output and reduced fuel consumption.
4 cl, 1 dwg
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Authors
Dates
2024-09-23—Published
2024-05-02—Filed