FIELD: engine building.
SUBSTANCE: method for the linear drive of the displacement piston 2 in a Stirling engine is proposed, consisting of a working cylinder 1, in which the displacement piston 2 and working piston 3 which can move are located. The working piston 3 is equipped with a crank mechanism 7, through which the reciprocating movement of the working piston 3 is converted into the rotational movement of the flywheel 8. The linear drive of the displacement piston 2 is carried out by means of an electromagnetic drive 6, mounted on the head of the upper, hot part of the working cylinder 1 of the Stirling engine and triggered by the command of a master device made in the of a roller switch 10, interacting with the protrusion 9 on the flywheel 8 and connected by an electrical circuit 11 with electromagnetic drive 6, with the ability to regulate the torque and/or duration of operation. At the moment when the working piston 3 is close to the position of the bottom dead centre, the protrusion 9 of the flywheel 8 interacts with the roller switch 10, the electrical circuit 11 is closed, and a command is sent to the coil 6 of the electromagnetic drive to operate it, the rod 5 of the electromagnetic drive is retracted under the action electromagnetic force, moving the displacement piston 2 into the hot part of the working cylinder 1. When the working piston 3 approaches the top dead centre, the protrusion 9 of the flywheel 8 ceases to interact with the roller switch 10, the electrical circuit 11 opens and the displacement of the displacement piston 2 to the bottom dead centre is carried out due to the elastic force of the spring 12 of the electromagnetic drive.
EFFECT: simplification of the designs of engines operating in the Stirling cycle, as well as an increase in their controllability in terms of power and speed during operation.
1 cl, 1 dwg
