LASER ROCKET ENGINE (VERSIONS) Russian patent published in 2015 - IPC F02K99/00 B64C39/02 

FIELD: engines and pumps.

SUBSTANCE: invention relates to jet engines of airborne vehicles, primarily, orbital and aerospace vehicles. Laser rocket engine (version 1) comprises the system of two reflecting and focusing mirrors (3) and (4) arranged in sealed pre-chamber (5) communicated with absorption chamber (7) via gas-dynamic opening (6), working fluid feed system, supersonic nozzle (8) and cooling channel (9). Laser radiation is fed in pre-chamber (5) by two solid cooled openings (2), a used laser translucent. Note here that pressure in said pre-chamber (5) is higher than that in absorption chamber (7) while two mirrors (1) reflecting the external laser radiation are located outside said laser rocket engine. Laser rocket engine (version 2) comprises the system of two reflecting and focusing mirrors (3) and (4) arranged in sealed pre-chamber (5) communicated with absorption chamber (7) via gas-dynamic opening (6), working fluid feed system, a manifold (10), supersonic nozzle (8) and cooling channel (9). Laser radiation is fed in said pre-chamber (5) via circular solid cooled opening (2), laser translucent. Note here that pressure in pre-chamber (5) is higher than that in absorption chamber (7). Note also that comical mirror (1) reflecting external laser radiation to engine is located outside said laser rocket engine. Optical centres of external and internal reflecting mirrors (1) and (3) and solid openings (2) are located on one axis.

EFFECT: higher efficiency, specific pulse and longer life.

2 cl, 2 dwg