FIELD: air and water propulsion
SUBSTANCE: annular jet propeller contains an annular disk with an oval surface shape and an additional disk of smaller diameter with a drive shaft installed under it on the same axis of symmetry with a gap. The propeller additionally contains a rotor, at the free end of which a screw is placed. The annular disk is rigidly connected to an additional disk of smaller diameter. The drive shaft is made hollow. The rotor is located inside the drive shaft of the disc of smaller diameter with the possibility of rotation in the direction opposite to the direction of rotation of the shaft. The additional disk of smaller diameter is made with an oval surface, and the annular gap between the annular disk and the additional disk of smaller diameter placed under it is made of decreasing cross-section as it moves away from their axis of symmetry.
EFFECT: increased traction, aerodynamic quality, change of the thrust vector.
1 cl, 2 dwg
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