Commercial Aircraft Corporation of China, Ltd.

Xi'an Jingdong Tianhong Technology Co., Ltd.

Beijing Aeronautical Science & Technology Research Institute, Commercial Aircraft Corporation of China

Zheng Cui

Yong Sun

Xuejun Sun

Yanguang Liu

Yuping Shi

A fan duct nozzle of an aviation turbofan engine. A notch is formed in a rear edge of an engine nacelle on an outer side of an engine pylon, and a flow guide curved surface matching the notch in shape is arranged on a profile of the fan duct nozzle. The notch is unilaterally formed in the outer side of the engine pylon, and a transition section between the notch and the rear edge of the engine nacelle includes two transition rounded corners. The present disclosure adopts a unilateral notch-shaped nozzle in the external duct of the turbofan engine, uses high-speed flowing of venting by an engine fan to provide flowing protection for an airfoil, improves a lift coefficient, and reduces negative impact on the airfoil exerted by the engine nacelle at a high incidence, thus lowering resistance, lowering a weight of the nacelle, and improving a lift-drag ratio.

Aviation turbofan engine and fan duct nozzle

A self-service parcel cabinet, comprising: a main-body part (), a sorting apparatus (), a parking apparatus (), and a control device. The main-body part is a hollow structure opened at the top. At least part of the hollow structure is formed by multiple self-service parcel lockers () surroundingly arranged. The parking apparatus is provided on top of the main-body part and comprises a drone landing pad (). Provided on the drone landing pad is a channel allowing passing of a parcel delivered by the drone and directly facing the opening at the top. The sorting apparatus is provided within the hollow structure, communicatively connected to the control device, and capable of, when a parcel receiving instruction transmitted by the control device is received, receiving according to the parcel receiving instruction a parcel delivered by the drone, and, when a first sorting instruction transmitted by the control device is received, transferring according to the first sorting instruction the receive parcel into a self-service locker of the self-service cabinet.

Self-service parcel cabinet

Growing community of inventors

Beijing, China

Zheng Cui