Two-component variable-thrust rotary detonation rocket engine based on pintle injector

The invention discloses a two-component variable-thrust rotary detonation rocket engine based on a pintle injector. The two-component variable-thrust rotary detonation rocket engine based on the pintle injector comprises the pintle injector, a rotary detonation combustion chamber and an exhaust nozzle which are sequentially and coaxially arranged in the axial direction; the pintle injector comprises a center rod inner nozzle, a nozzle adjusting body and an injector shell which are sequentially and coaxially arranged from inside to outside in a sleeving mode; a fuel injection runner is arranged in the center of the center rod inner nozzle, a plurality of fuel injection openings are formed in the head of the center rod inner nozzle in the circumferential direction, and a broken-line-shaped oxidizing agent runner is formed between the outer wall face of the inner side of the nozzle adjusting body and the inner wall face of the injector shell; and the nozzle adjusting body can slide in the axial direction, and th