Accession Number : ADD004960

Title :   Ejector Ramjet with Turbojet Fuel Rich Gas Generator.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s) : Wilkinson,David G

Report Date : 20 Apr 1978

Pagination or Media Count : 7

Abstract : An ejector ramjet having a turbojet engine located in the air inlet to provide a fuel rich gas to the ramjet engine is described. The turbojet exhaust entrains secondary air in the ejector tube for the ramjet in the same manner as in a thrust augmentation system and increases the air's stagnation pressure. The mixture is burned in the ramjet dump combustor in a conventional manner. Fuel is supplied to the inlet of the turbojet compressor to provide precompressor cooling. The fuel flow to the compressor inlet is controlled to provide a stoichiometric mixture for the combustor. Additional fuel is supplied at the inlet of the turbine to provide cooling for the flow through the turbine and to provide a fuel rich mixture in the turbojet exhaust. (Author)

Descriptors :   *Patent applications, *Ramjet engines, *Turbojet engines, Exhaust gases, Combustion, Combustors, Thrust augmentation

Subject Categories : Jet and Gas Turbine Engines

Distribution Statement : APPROVED FOR PUBLIC RELEASE