Direct thrust type water jet propulsion system

• Main Authors: HU BINBIN, DU WENGUO, CHENG TAO, LI JIAN, CHENG ZHE, HAN HAIHUI, WU SHAOLONG
• Format: Patent
• Language: English
• Published: 07.01.2015
• Subjects: MARINE PROPULSION OR STEERING; PERFORMING OPERATIONS; RELATED EQUIPMENT; SHIPS OR OTHER WATERBORNE VESSELS; TRANSPORTING

The utility model relates to a direct thrust type water jet propulsion system. The direct thrust type water jet propulsion system comprises a water jet propulsion device (1) and is characterized in that the water jet propulsion device (1) is directly connected with one end of a jet propulsion main shaft (7), and the other end of the jet propulsion main shaft (7) is connected with a gearbox (9) through a connecting flange (8). The direct thrust type water jet propulsion system has the advantages that since the thrust bearing, the thrust bearing housing and the driving shaft system of the traditional water jet propulsion device are abandoned and the water jet propulsion device is directly connected with the gearbox through the jet propulsion main shaft, the effect of directly transmitting thrust to the gearbox is realized, the thrust is directly born by the gearbox, the shaft sealing structure is also optimized, the structure is compact, the weight of the device is relieved, the cabin space is saved, the equipment is simpler to install and maintain, the cost is reduced and the application in places of medium-power to high-power water jet propulsion is wide.