Methods of creating a force by discharging a pressure fluid into another fluid under lower pressure

摘要

456,063. Jet propulsion. SOC. ANON. D'ETUDES DES BREVETS ET PROCEDES COANDA, SOC. COANDA, 10, Rue Bardin, Clichy, Seine, France. March 29, 1935, No. 9825. Convention date, Oct. 8, 1934. [Classes 4 and 114] A method of producing forces which may be applied to the propulsion of bodies consists in discharging a stream of fluid pressure from a narrow slot 2 in which a curved surface of chosen. contour is arranged substantially contiguous with one wall of the slot. The issuing jet causes the surrounding fluid to flow round the curved surface until it takes a direction substantially opposite to that of the issuing jet. A pressure reduction is thus set up at 6 and the nozzle and the parts associated with it move or tend to move in the general direction of the issuing stream of fluid.