On the Line-hauler with Torque Converter

Abstract

On the Line-hauler with Torque Converter Hidetoshi KUSAMA, Yoshio YAMAGUCHI and Yoshio MIYAZAKI The hauling machines of the fishing nets or lines are necessary to have the characteristics of shock absorb and reliable controle of the hauling speed, especially for the large ships of tuna fishing How ever, none of old types have these two important characteristics. By the experiments, we obtained as follows; Right ordinate: efficiency of converter.

Effect of Energy Saving of Electric Motor Driven Line Hauler Using Inverter

“…However, with a ten dency towards higher output in recent years,1) 30 kW class line haulers are now being installed on 400-ton class fishing vessels.2) Although energy saving measures are necessary since the line hauler also requires energy for the fish hold refrigerator, there are practically no reports on energy sav ing of the line hauler. 3) If we observe the drive system of the line hauler, it may be divided broadly into either a hydraulic drive or an elec tric motor drive.1) A hydraulic drive is used widely in high output machines since, in addition to developing high tor que at low speeds, speed adjustments are easy. In hydraul ic systems however, it is necessary to convert energy twice: from electrical energy to hydraulic energy and then to mechanical energy.…”