A supersonic inlet with synchronous adjustment of a capture area and a throat area, comprising a first stage compression surface located on an inner side of an entrance of the supersonic inlet, a second stage compression surface extending backward from the first stage compression surface, a cowl lip located on an outer side of the entrance of the supersonic inlet, a movable inner contraction section hinged on a rear end of the second stage compression surface and extending backward, a movable throat section hinged on a rear end of the movable inner contraction section and extending backward, and a movable diffuser section hinged on a rear end of the movable throat section and extending backward;
- the cowl lip comprises a fixed cowl section located on the rear end and a rotatable cowl section hinged on a front end of the fixed cowl section and extending forward, the rotatable cowl section may rotate inward or outward around a hinge point of the rotatable cowl section with the fixed cowl section,
- wherein an inner side of the movable throat section is hinged to one end of at least one rotatable arm, and the other end of the at least one rotatable arm is hinged to a push rod located on the inner side of the movable throat section and extending forward and backward, a rear end of the push rod is connected to a driving device;
- provided are also an inclined sliding groove connected to a front end of the push rod, and a cowl lip support rod connecting the inclined sliding groove and the rotatable cowl section, the inclined sliding groove comprises a first horizontal groove, a second horizontal groove, and an inclined groove in communication with the first horizontal groove and the second horizontal groove, the first horizontal groove is connected to the push rod, and the first horizontal groove is more outward than the second horizontal groove;
- one end of the cowl lip support rod is provided with a slider located in the inclined sliding groove, and the other end of the cowl lip support rod is connected to the rotatable cowl section;
- a front end of the inclined sliding groove is limited in a guide rail groove by a guide rail;
- during a forward sliding of the push rod driven by the driving device, the push rod drives the movable throat section through the at least one rotatable arm to be pulled back from an outermost arched position, that is, the throat area of the supersonic inlet is changed from a minimum to a maximum;
- the push rod slides forward while pushing the inclined sliding groove to move forward, such that the slider moves towards an end of the inclined sliding groove that is connected to the push rod, thereby causing the cowl lip support rod to push outward to rotate the rotatable cowl section outward around the hinge point of the rotatable cowl section with the fixed cowl section, in this process, the rotatable cowl section does not rotate when the slider of the cowl lip support rod moves in the first horizontal groove and the second horizontal groove;
- during a backward sliding of the push rod from a foremost position driven by the driving device, the push rod drives the movable throat section through the at least one rotatable arm to arch outward, and when the push rod slides to a final position, the movable throat section is located at the outermost arched position, at this time, the at least one rotatable arm and the push rod are perpendicular to each other;
- the push rod slides backward while pulling the inclined sliding groove to move backward, such that the slider moves towards the front end of the inclined sliding groove, thereby causing the cowl lip support rod to pull inward to rotate the rotatable cowl section inward around the hinge point of the rotatable cowl section with the fixed cowl section, in this process, the rotatable cowl section does not rotate when the slider of the cowl lip support rod moves in the first horizontal groove and the second horizontal groove.