| 摘要 |
<p>The invention concerns jet engineering, namely the jet nozzle construction used in drives of jet apparatuses, in particular of air, artillery, underwater free rockets and also individual minirockets. The jet nozzle according to the first variant contains body (1) with ledges (2) on an internal surface. The ledges (2) are located longitudinally and make in the nozzle cross-section the cogged form. One from lateral surfaces of each ledge (2) is executed radially (3) or concavely (4). The ledges (2) can have in the cross-section the form of an arc (5). In the second variant of the jet nozzle the ledges (6) have the form of a screw thread and make in the nozzle cross-section the cogged form. One of the lateral surfaces of a screw thread is executed radial (7) or concave (8). The ledges (6) in the cross-section can have the form of an arc. In each of the device variants the ledges (2 and 6) are executed both on an internal surface of the body (1) and inside an insertion (10) adjusted in the nozzle body (1).</p> |
