摘要 |
The system including an internal combustion engine provides the motive power source to the main and tail rotor systems of a helicopter. The engine has a rotating annular cylinder which is rotated in a predetermined ratio to oscillation of a plurality of pairs of oscillating pistons in the cylinder, the pistons being so oscillated so that adjacent pistons are moved alternately apart from one another and toward one another for the respective strokes of the internal combustion engine and having intake port, exhaust ports and ignition means on the rotating annular cylinder located by the rotation of the cylinder between adjacent pistons according to the firing order and cycle of the engine in a typical four stroke cycle system. The engine includes the use of unitary in place of articulated, oscillating crank arms to transmit power from the torque tubes to the crankshaft, and the use of pistons having gabled surfaces that are rigidly connected to the torque discs. The system also includes transmission means means for reducing the torque speed of said crankshaft and for rotating the main rotor head and blades and tail rotor systems of the helicopter.
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