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The supersonic ejector utilized for cooling includes a cooling extension axially extending the discharge slot from the throat of the primary stream and is contoured to accelerate primary stream, to direct the primary stream to flow parallel to the secondary stream and match the static pressures of b

The supersonic ejector utilized for cooling includes a cooling extension axially extending the discharge slot from the throat of the primary stream and is contoured to accelerate primary stream, to direct the primary stream to flow parallel to the secondary stream and match the static pressures of both streams and to ensure that the expansion shocks are upstream of the discharge slot. This supersonic ejector is utilized in one instance for cooling purposes in a two-dimensional vectoring nozzle of a gas turbine engine powering aircraft.

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[ It is claimed:] [1.] A supersonic ejector having a passage for flowing primary gas stream and another passage for flowing secondary gas stream, a throat disposed in the primary gas stream, a cooling extension defining a slot axially extending from said throat, the improvement comprising a contour

[ It is claimed:] [1.] A supersonic ejector having a passage for flowing primary gas stream and another passage for flowing secondary gas stream, a throat disposed in the primary gas stream, a cooling extension defining a slot axially extending from said throat, the improvement comprising a contour on said cooling extension extending into the primary stream for accelerating the velocity of the primary gas stream to approximately match the static pressure of the secondary gas stream and contain the expansion shock waves upstream of said slot relative to the flow of said secondary gas stream.