Adjustable nozzle for hypersonic engine combustion chamber

摘要

In a ram jet combustion chamber having fuel injectors 34 and an exhaust nozzle 7, the nozzle throat cross-section (between the widest part of a displacement body 15 and an outer wall 10 increases along with increase in combustion space length as the body 15 axially slid able on a support pipe 18 is moved outwards, and conversely, both parameters decrease as the body (15) is moved inwards. This interdependence results in highly effective ram-jet operation. In other embodiments, air may be delivered to the ram jet combustion chamber by a double pipe (figs 2 to 5) or may serve as a combined ram-jet combustion chamber and afterburner chamber of turbo engine (figs 6 and 7) which may have a bypass arrangement. IMAGE