The Turbo Supercharger

A. L. Berger; Opie Chenoweth

doi:10.4271/310042

1931-01-01

The Turbo Supercharger 310042

An outline history of the development of the turbo supercharger is presented, showing the progress of the supercharger and the related airplane parts. A brief history is given of the fuel systems, cooling systems, exhaust manifolds and nozzle boxes, turbine buckets, propellers, ignition systems, carbureters, intercoolers and bearings and lubrication, and a description of the developments that have recently taken place in these fields.

A study is made of the power required by the compressor and power delivered by the turbine on the basis of certain assumptions that may be at variance with the facts. Nevertheless, the study shows trends and the general order of efficiencies.

From this paper, the conclusion is reached that the turbo supercharger is a serviceable piece of equipment for maintaining sea-level pressure at the carbureters to altitudes. The indications are that extensive ground boosting can be used if the engine, spark-plugs, fuels and carbureters are suitable for the application.

A list of future developments that may be undertaken to improve the supercharger and attaching parts is presented.

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The Turbo Supercharger 310042

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