Design of Combustor for Long-range Ram-jet Engine and Performance of Rectangular Analog

Rayle, Warren D; Koch, Richard G

The report describes the design of a piloted combustor intended for a ram-jet engine of long flight range. The unit comprises a large annular basket of V-type cross-section, the inner surface of which is slotted and bent into small V-gutters. At the trailing edge of the basket, eight V-gutters are used to propagate the flame into the main stream. A rectangular analog of this combustor was tested at air-flow conditions corresponding to those that might be obtained during cruise. At these conditions, combustion efficiencies of as much as 90 percent were calculated for the combustor at the design equivalence ratio of 0.52. The performance of the unit was relatively insensitive to mounting and flow variables; the greatest effect on efficiency was that of the manner and location of the fuel injection. A full-scale version of this combustor has been designed for a 48-inch-diameter engine.

Document ID

19930088026

Acquisition Source

Legacy CDMS

Document Type

Other

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Date Acquired

August 16, 2013

Publication Date

January 29, 1954

Report/Patent Number

Accession Number

93R17316

Distribution Limits

Public

Work of the US Gov. Public Use Permitted.

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