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전종길 ( Jeon Jong-gil ),김경원 ( Kim Kyung-won ),이인복 ( Lee In-bok ),정광근 ( Chung Kwang-keun ) 한국농공학회 2003 한국농공학회 학술대회초록집 Vol.2003 No.-
The results of the field tests with the prototype of the improved screw type show that the opening torque was 5Nrn, 64% decreased compared to 14Nm of the existed diversion gates. Moreover, there were no any rust as well as physical changes with various weather condition. While the operating times of the conventional screw and worm gear typed diversion gates were 233sec and 495sec, respectively, the operating time of the improved screw type was only 32sec, only 13.7% and 6.5%, respectively, of them. The amount of leakage was 0.4 liter per minute for the improved screw typed diversion gate while the conventional gate was shown l.5liter per minute according to gap, corrosion, defect, etc.