FIELD: engine building.
SUBSTANCE: invention relates to a pneumatic motor. Engine comprises a rotating outer ring (1), intermediate shaft (2) and power core (3) of direct drive. Ring (1) and core (3) are located coaxially on shaft (2). Ring (1) is made with possibility of rotation relative to shaft (2) and core (3). Shaft (2) is equipped with main hole (21) for air inlet and main opening (22) for air outlet. Core (3) is equipped with inlet channel (31) and outlet channel (32). On internal annular surface of ring (1) multiple drive grooves are made. Compressed gas comes from hole (21) and exits through channel (31) to act on drive surface of ring (1) so that a driving force is created to drive ring (1), and, finally, compressed gas is returned back to hole (22) through channel (32) to achieve constant speed and torque.
EFFECT: invention is aimed at providing simple design, high efficiency of transmission and high durability.
9 cl, 5 dwg
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