AXIAL PISTON INTERNAL COMBUSTION ENGINE Russian patent published in 2022 - IPC F02B75/26 F02B33/14 F01B3/08 

FIELD: engines.

SUBSTANCE: invention can be used in internal combustion engines. Axial piston internal combustion engine comprises a body (1), wherein a drive shaft (8) is located in the centre, secured whereon is a gear wheel (43). Cylinders (6), (7) and pistons (9), (10) are arranged axially relative to the axis of the drive shaft (8). Closed longitudinal spiral grooves (29), (30), longitudinal slots (35), (36) wherein guides are placed, are made on the outer cylindrical surface of the pistons (9), (10). Gears (33), (34) are placed on the pistons (9), (10), secured and kinematically coupled with the gear wheel (43) of the drive shaft (8). The body (1) has an annular shape, basing surfaces are made on the inner surface for securing the cylinders (6), (7) therein. The body (1) is covered with lids (2), (3) at the end, whereon protrusions (4), (5) are made. Holes are made in the lids (2), (3) in the centre of the body (1), wherein the drive shaft (8) with the gear wheel (43) is located rotatably. Pistons (9), (10) are placed in the cylinders (6), (7), dividing the cylinder cavities into combustion chambers (I) (II) and discharge chambers (III), (IV). The cylinders (6), (7) are shaped as sockets with a flat bottom. Exhaust windows (13), (14) are made in the cylinders (6), (7) and in the body (1) at the level of the lower dead centres of the pistons. The inner surfaces of the cylinders (6), (7) are made stepped. The diameters of the discharge chambers (III), (IV) have diameters larger than those of the combustion chambers (I) (II). intake valves (15), (16) are installed in the bottoms of the pistons (9), (10) on the side of the combustion chambers (I) (II), connecting the combustion chambers (I) (II) with the discharge chambers (III), (IV) of the cylinders via air supply channels (17), (18) made in the pistons. The pistons (9), (10) are made stepped. On the side of the discharge chambers (III), (IV), the cylinders are sealed by plugs (19), (20) separating the discharge chambers (III), (IV) and the air supply channels (23), (24). Intake valves (23), (24) are installed in the plugs (19), (20) of the cylinders. Annular grooves are made on the outer cylindrical surfaces of the pistons (9), (10), wherein compression and oil scraper rings (25), (26) and (27), (28) are installed. Parts of the guides (31), (32) protruding beyond the spiral grooves (29), (30) are secured in the gear hubs (33), (34) set on the outer cylindrical surfaces of the pistons (9), (10). Parts of the guides (37), (38) protruding beyond the pistons (9), (10) enter the longitudinal grooves (39), (40) made on the inner surfaces of the cylinders (6), (7), forming splined joints (41), (42). The gears (33), (34) are locked from axial movement by the cylinders (6), (7). The teeth of the gears (33), (34) engage with the teeth of the gear wheel (34) secured on the drive shaft (8). A flywheel (45) is placed on the drive shaft (8) outside of the body (1).

EFFECT: improved compactness of the engine with high power characteristics and torque.

1 cl, 1 dwg