Fixed-geometry binary hypersonic-speed air inlet channel with double-cantilever pre-injection in front body

The invention discloses a fixed-geometry binary hypersonic-speed air inlet channel with double-cantilever pre-injection in a precursor, which comprises a plurality of binary hypersonic-speed air inlet channel units with double-cantilever pre-injection structures, the binary hypersonic air inlet unit with the double-cantilever pre-injection structure comprises an air inlet channel inner wall face, a lip cover located on the air inlet channel inner wall face and a front body compression face extending forwards from the air inlet channel inner wall face. The inner wall surface of the air inlet channel and the lip cover jointly define an inner channel of the air inlet channel; the equal straight section extends backwards from the gas inner channel; cantilever structures are arranged on the last-stage compression face of the front body compression face of the binary hypersonic speed air inlet channel unit and the inner wall face of a lip cover, fuel is injected through the structures, and the air inlet channel flo