Abstract: New Engine in Box Shape is made up of four cylinders arranged in one plane, in opposition, with their axes two by two coaxial and parallel, the motor main shaft (2) arranged between two cylinders C1 and C2, the obelisk (6), pivoted both at the eccentric pivot (3) and at the central shaft (5), which in its two extremities pivot the connecting-rods (8) with the pistons (9), and of the heads (11) endowed with the camshafts (10) located vertically to the motor main shaft (2). When the pistons (9) are set in motion, as in case of internal combustion engines, their alternative straight-line motion is transformed in rotative motion of the motor main shaft (2) and vice-versa for the case of the compressors.

Abstract: Piston driven axial cylinder engine is composed of the flange (1) with the cylinders (10) in a circular disposition, the support (16) of the motor main shaft (2), and the carrier (20) supporting the central pivot (7). Around this central pivot (7), the disc (6) has a mutating motion. The extremity (4) of the shaft describing a circle drives the shaft (2) in rotation. The disc (6) pivots the extremity of the connecting rods (8). The distribution disc(17) with the lobes (18), placed coaxially in the motor main shaft (2) whence it takes its rotation, actuates the valves (12) and (13) placed in the cylinder heads (11). The auxiliary (21), which too takes its rotations from the motor main shaft (2), serves to set in motion the auxiliary equipments. When the pistons are set in motion, as in the case of internal combustion motors, their alternative straight-line motion is transformed in rotative motion of the motor main shaft (2); and vice-versa as in the case of compressors and hydraulic pumps.