SOLID-PROPELLANT ROCKET ENGINE Russian patent published in 2004 - IPC

FIELD: rocketry.

SUBSTANCE: proposed solid-propellant rocket engine has powder charge, holder with nozzle insert and diaphragm in nozzle unit housing held by split spring ring. Split spring ring is installed in ring space formed by grooves made from outer side of holder and inner side of nozzle unit housing for width of ring. Load-bearing elements of split ring are essentially projections made on ring generating line changing in radius into jumpers pointed to nozzle unit housing. Ends of ring split with load-bearing elements are made with symmetrical faces pointed to male and female surfaces. One end of ring split gets behind the other projecting from entry port of nozzle unit housing. Port entry angle is equal to entry angle of ring load-bearing elements. Invention provides reliable connection of small diameter parts arranged concentrically and locked from turning and taking up large axial load from working pressure of powder gases in engine operation.

EFFECT: provision of reliable connection of concentric parts.

3 dwg