The invention discloses a rotary constant-volume pressurizing
combustion chamber. The rotary constant-volume pressurizing
combustion chamber comprises multiple independent constant-volume
combustion chamber bodies, a fuel inlet tube, a fuel outlet tube, fuel nozzles, a
spark plug mounting base, an air feeding structure, a
spark plug and the like. The rotary constant-volume pressurizing
combustion chamber is simple in structure. The air feeding structure can send air and fuel into the
combustion chamber bodies uninterruptedly, an exhaust structure can exhaust high-temperature and high-pressure gas continuously after combustion in the independent constant-volume
combustion chamber bodies, and continuous air feeding and exhaust of the combustion chamber bodies are achieved; accordingly the air feeding and exhaust efficiency of the combustion chamber bodies is improved, and the fuel and air filling speed of the combustion chamber bodies is improved at the same time. The rotary constant-volume pressurizing combustion chamber is free of a
piston compression structure, upper and lower dead centers are absent, and the
effective volume can be equal to the volume of the combustion chamber, accordingly the
space use rate of the combustion chamber bodies is improved; meanwhile, according to the combustion chamber bodies, friction between pistons and combustion chamber body walls is prevented, so that the mechanical
friction loss is small, and the fuel heat use rate of the combustion chamber bodies can be improved.