2.75-inch improved rocket motor

摘要

The present invention relates to a 2.75 inch improved rocket motor using a double base propellant and more particularly to an improved rocket motor with a stabilized rod coating containing an intrinsic potassium salt content, Combustion instability is eliminated.;The present invention relates to a K₂SO₄Was used to generate ionized KOH in the motor chamber and to attach to chains with-H and-OH groups to reduce secondary combustion. It was found that the potassium salt content was increased, And increasing the outer diameter and thickness of the coating material to increase the amount of potassium salt supplied into the combustion gas per unit time.;In addition, by using the stabilizing bar of a larger dimension of coating material in the interior of the propellant (that is, the gas flow passage), the mechanical disturbance effect on the gas pulsation becomes larger, effectively suppressing the combustion instability.;Accordingly, it was possible to manufacture the 2.75 inch improved type rocket motor improved in performance by eliminating the combustion instability according to the present invention.