公开(公告)号：US11338307B2

公开(公告)日：2022-05-24

申请号：US16161614

申请日：2018-10-16

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Zhiliang Jin ,  Xumin Wu ,  Xiaolong Wu ,  Chuoying Lu ,  Le Zhou

IPC: B05B1/30

Abstract: A spray-head assembly includes a pipe structure and a valve-spool. The pipe structure includes a liquid inlet, a flow pathway, and a valve-port. The flow pathway includes an air-flow pathway arranged obliquely with respect to a central axis of the liquid inlet. A bottom end of the air-flow pathway communicates with the liquid inlet. The valve-port is arranged at a top end of the air-flow pathway. The valve-spool is arranged in the flow pathway and configured to control opening and closing of the valve-port.

公开(公告)号：US11014668B2

公开(公告)日：2021-05-25

申请号：US16120590

申请日：2018-09-04

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Xiaolong Wu ,  Xumin Wu ,  Li Qiu ,  Le Zhou

IPC: B64C39/02 ,  A01G25/00 ,  B64D1/18 ,  A01G25/16

Abstract: An agricultural unmanned aerial vehicle (UAV) includes a fuselage, a flight power apparatus, a plurality of spray nozzles, a plurality of water pumps, and a controller. The flight power apparatus is mounted at the fuselage. The plurality of spray nozzles are installed below the flight power apparatus. The plurality of water pumps are connected to the plurality of spray nozzles and configured to deliver liquid to the spray nozzles. The controller is electrically coupled to the plurality of water pumps, and configured to selectively control one or more of the plurality of water pumps to pump the liquid to one or more of the spray nozzles connected to the one or more of the water pumps.

公开(公告)号：US20190009907A1

公开(公告)日：2019-01-10

申请号：US16120590

申请日：2018-09-04

Applicant: SZ DJI Technology Co., Ltd.

Inventor： Xiaolong Wu ,  Xumin Wu ,  Li Qiu ,  Le Zhou

IPC: B64C39/02 ,  A01G25/00

Abstract: An agricultural unmanned aerial vehicle (UAV) includes a fuselage, a flight power apparatus, a plurality of spray nozzles, a plurality of water pumps, and a controller. The flight power apparatus is mounted at the fuselage. The plurality of spray nozzles are installed below the flight power apparatus. The plurality of water pumps are connected to the plurality of spray nozzles and configured to deliver liquid to the spray nozzles. The controller is electrically coupled to the plurality of water pumps, and configured to selectively control one or more of the plurality of water pumps to pump the liquid to one or more of the spray nozzles connected to the one or more of the water pumps.