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|1. (WO2018164318) PUMP HAVING GAPLESS WEAR RING|
|Inventors:||BAEK, Dae Joon
YANG, Tae Sung
CHOI, Yong Won
KIM, Min Seok
|Title:||PUMP HAVING GAPLESS WEAR RING|
According to the present invention, a pump having a gapless wear ring comprises: an upper casing; a lower casing; a motor; an impeller; and a connecting shaft for connecting a motor shaft and the impeller, and further includes: a carbon-carbon composite wear ring comprising a casing wear ring provided at the lower surface of the lower casing, and an impeller wear ring provided at the impeller in a state in which the impeller wear ring comes in close contact with the casing wear ring in the vertical direction from the lower side of the casing wear ring without a gap; and a contact means for maintaining the casing wear ring and the impeller wear ring in a gapless contact state all the time.