ROTARY-PISTON MACHINE Russian patent published in 1997 - IPC

FIELD: mechanical engineering; designing of internal combustion engines and compressors. SUBSTANCE: two coaxial shafts are installed in machine housing. Diametrically paired sector-type pistons are secured on shafts. Pistons are mechanically coupled by means of outer counterdrive in form of step-up single-stage gear train and Maltese cross movement. Sector pistons installed on driven shaft are made with central angle at least 2-fold exceeding central angle between axes of symmetry of ports. Gear ratio of gear train, number of driving disk cogs and pairs of slots of Maltese cross movement driven disk are equal to number of pistons pairs. EFFECT: enlarged operating capabilities. 2 cl, 8 dwg