1962-01-01

Substitution of Steam for Nitrogen as a Working Fluid in Atmosphere Free Spark Ignition Engines - Theory and Test Results for Steam, Oxygen, and Fuel 620235

This paper summarizes the results of both the preliminary studies and the initial cycle tests of a unique type of IC engine capable of operating in the absence of an atmosphere. This engine has been designed specifically for use in the general space program, and it is intended to satisfy requirements of high power to weight ratio, reliability, compactness, and short development time. The history of the en-engine's development is discussed together with problems encountered in the study. However, primary emphasis is on the recently conducted cycle tests.

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