Input of the supersonic air in a half - body of revolution for propulsion units, a reaction, particularly for engines - rockets of the ramjet has solid propellants

摘要

Half rotationally symmetrical supersonic air inlet with a semi-conical displacement element for reaction jet engines, especially for ram jet rocket engines, for the propulsion of guided missiles and aircraft, an air gap being provided between the base of the displacement element and the external contour of the missile, which gap is bridged by a spacer element, and an air release device being provided on the surface of the displacement element, from which the exhaust air flows downwards, the frustum-shaped displacement element being supplemented on its base by a frustum-shaped auxiliary displacement element extending from the cone tip into the area of the air inlet plane, but at least to the forward limit of the exhaust device, for producing a rotationally symmetrical, approximately equal pressure distribution. For the same purpose a displacement wedge with cutting edge perpendicular to the base extending from its cone tip to in front of the exhaust device is provided on the base of the frustum-shaped displacement element on a supersonic air inlet of the generic type.