The invention belongs to the technical field of aero-engine experimental equipment, and discloses a universal
combustion chamber high-altitude test
bed without an environment
simulation cabin, which comprises an air inlet component and an air outlet component. The device is suitable for test loading and unloading work of single-head, multi-head and full-ring
combustion chamber switching sections with various lengths, is suitable for an aero-engine
combustion chamber high-altitude ignition and
flameout test bench, and is especially suitable for a single-head and multi-head
combustion chamber high-altitude ignition
test bench. The cold insulation requirement of the switching section under the low-temperature working conditions of-54 DEG C and the like is met through the detachable heat insulation structure, so that the same environment
simulation effect as that of a high-altitude tester with an environment
simulation cabin is achieved. The problems that an environment simulation cabin is high in construction cost, large in structural size, complex in test piece loading and unloading work, high in operation and maintenance cost and the like are solved; and meanwhile, the defects that the
temperature drop of the switching section is large, the switching section is not suitable for switching sections with various lengths, inlet and outlet flanges connected with the switching section are not universal and the like when the
combustion chamber test piece is subjected to a high-altitude ignition test without an environment simulation cabin are overcome.