Abstract: A water jet strengthening and polishing integrated system for blades of a blisk includes a vibration polishing unit and a water jet strengthening unit. The vibration polishing unit includes a vibration polishing bath, the vibration polishing bath is internally provided with a clamp for clamping the blisk, and vibration motors for driving the vibration polishing bath to vibrate are installed on the vibration polishing bath. Top ends of support springs are fixedly connected with the vibration polishing bath, and bottom ends of the support springs are fixedly connected with a workbench. The water jet strengthening unit includes a water jet strengthening device for carrying out water jet strengthening on the blades of the blisk and a driving mechanism for clamping the water jet strengthening device and capable of driving the water jet strengthening device to move in any direction in space.

Abstract: An aircraft engine includes an outer casing, an inner casing, a first rotating shaft, a first fan, a second fan, a first combustor, and a second combustor. The outer casing has an outer intake end and an outer exhaust end. The inner casing includes a first section and a second section arranged in an axial direction. The first rotating shaft is rotatably disposed in the inner casing. The first fan includes an inner turbine portion, a first connection portion, and an outer turbine portion. The second fan is connected to the first rotating shaft and disposed on the outer intake end side of the first section wherein an outer diameter of the second fan is larger than that of the first section. The first combustor is disposed between the second fan and the outer turbine portion. The second combustor is disposed between the second fan and the inner turbine portion.