NOZZLE WITH NOZZLE ELEMENTS ARRANGED IN CIRCUMFERENTIAL ROWS THAT ALTERNATE BETWEEN COUNTERCLOCKWISE TWISTING AND CLOCKWISE TWISTING Russian patent published in 2022 - IPC F02K9/52 

FIELD: space technology.

SUBSTANCE: invention relates to a nozzle for a liquid rocket engine, which includes an array of nozzle elements. Each nozzle element includes a central channel and a set of peripheral transverse channels. The central channels are configured to provide axial injection flow, and the peripheral transverse channels are configured to provide a vortex injection flow swirled around the axial injection flow. Part of the nozzle elements are configured to provide a vortex injection flow twisted in the clockwise direction, and the other part of the nozzle elements is configured to provide a vortex injection flow twisted in the counterclockwise direction. The nozzle elements are arranged to form a plurality of circumferential rows. The nozzle elements of each individual circumferential row either all have the clockwise direction, or all have the counterclockwise direction. At least one of the circumferential rows has the clockwise direction, and at least one of the circumferential rows has the counterclockwise direction.

EFFECT: invention provides optimal efficiency of energy release, as well as thermal expansion, which accelerates the axial movement of fluid particles.

20 cl, 7 dwg