Fuel oil drainage and exhaust tool used before helicopter starting

• Main Authors: XUE ZHEN, ZHU RONG, LIU DA, CHEN QIANG, WAN FUPING, ZHONG SHIQUAN, TIAN MINGHUA, LIU YONGQIANG
• Format: Patent
• Language: Chinese; English
• Published: 18.01.2022
• Subjects: AIRCRAFT; AVIATION; COSMONAUTICS; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING ORREPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLYADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFTCOMPONENTS, NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; TRANSPORTING

A fuel oil drainage and exhaust tool used before starting of a helicopter belongs to the technical field of helicopter fuel oil supply system repair and comprises an oil receiving nozzle, an oil groove is formed in the middle of the oil receiving nozzle in the length direction of the oil receiving nozzle, an ejector rod penetrating through the oil groove is arranged in the oil groove, and a connecting nut is connected to the front end of the oil receiving nozzle. The oil receiving nozzle and the connecting nut are fixed through a check ring, the side wall of the oil receiving nozzle is connected with a pipe nozzle, one end of the pipe nozzle is communicated with the oil groove, and the other end of the pipe nozzle is guided into the oil receiving basin through a transparent rubber pipe. The tool is simple and practical, the one-way valve is opened in the mode that the connecting nut is used for fixing, the ejector rod ejects the valve element of the one-way valve open and the rubber pipe is used for drainage,