Experimental Research and Identification of Flow Efflux Angles in Extension Orifices of Spool Valve Actuators of Rocket Steering Engines

The paper covers field research results and identification of working liquid efflux angles within throttling ports of spool valve-type hydraulic distributors for electrohydraulic driver of actuating unit vs relative opening of ports configured as a rectangular or segmental shape. Researches were carried out with the help of original pilot unit that allows identifying efflux angle values of flows that are close to integral ones not only by the ports opening value but by the valve chamber depth. It is the valve chamber that is the begging and the ending point of these flows. The authors suggest a spline Interpolation - Extrapolation of the dependences produced during the experiments.

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