A jet engine having outer and inner tubular casings with an annular fluid passage therebetween, a combination motor fan and compressor mechanism having fluid driven vanes and compressing vanes which are used to compress the incoming fluid charge to an engine burner located in the inner casing; each of the casings defining at their outflow ends a nozzle orifice; the fluid driven vanes being part of a motor fan and radially overlying the compressor vanes and having an average mean diameter greater than that of the compressor vanes. The compressor vanes dis...
In a jet engine comprising: a. an elongated annular outer casing having a central longitudinal axis, a substantially open forward end and a substantially open, rear nozzle end, b. an elongated annular inner casing coaxially disposed within said outer casing and having a substantially open forward end and a substantially, rear nozzle end, 1. said inner casing forward end being smaller than said outer casing forward end and forming a first air intake for said inner casing; c. said outer casing being radially spaced from and defining an elongated annular ai...
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