FIELD: rocket manufacturing. SUBSTANCE: proposed starting fuel capsule has cylindrical housing accommodating two diaphragm units whose diaphragms are hermetically secured inside housing along its periphery at inlet and outlet for breaking by working medium. Each diaphragm unit is made in form of piston with shank, guide bushing and ribs. Piston is connected with diaphragm made in form of ring jumper. Piston shank is fitted inside bushing for moving the piston in longitudinal direction. Bushing is installed coaxially, and its outer surface is connected with inner wall of housing by means of ribs, forming clearance in between. Such design of capsule provides cutting off diaphragm over entire perimeter and reproducibility of hydraulic characteristics of capsule flow passage when large number of devices operate. EFFECT: improved ignition of fuel components. 5 cl, 2 dwg
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