FIELD: engines and pumps.
SUBSTANCE: invention may be used in automotive industry. Proposed engine with gas exchange crank-chamber comprises cylinder (8) with piston (4) furnished with two piston pins and two crankshafts (2) arranged in symmetry about cylinder axis (8). Every crankshaft (2) is coupled by con-rod (3) with one of piston pins. Compressor (16) cylinder is arranged on engine inner bottom side coaxially with cylinder axis (4). Compressor piston (13) is coupled by rod (12) with engine piston (4). Compressor (16) outer chamber is communicated via channels with crankcase chamber. Inner chamber of compressor (16) is isolated from crankcase chamber by means of sealing bush (5) arranged at rod (12). Bush (5) is locked between two halves of said crankcase.
EFFECT: possibility to replenish engine cylinder.
2 cl, 2 dwg
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