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Non stationary lateral forces reducing method for rocket engine nozzle, involves moving body based on stagnation pressure value of combustion gas so that shock wave is incident on divergent wall at position where jet separation is produced
Non stationary lateral forces reducing method for rocket engine nozzle, involves moving body based on stagnation pressure value of combustion gas so that shock wave is incident on divergent wall at position where jet separation is produced
The method involves inserting a round shaped body (5) inside a divergent (3) of a nozzle along its axis, before starting an engine. The body is moved along the axis based on a stagnation pressure value of a combustion gas in a combustion chamber such that a shock wave induced by the flow disturbance of the combustion gas caused by the body is incident on a wall of the divergent at an axial position where a jet separation is produced. An independent claim is also included for a device to reduce non-stationary lateral forces acting on a nozzle of a rocket engine.
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