2002 年 2002 巻 5-1 号 p. 187-192
A compact and lightweight water hydraulic motor has been developed with the aim of applying to water hydraulic systems that utilize tap water as the transfer medium of energy. The developed water hydraulic motor, which drives in the low-pressure range equal or less than 2.0MPa, has power equivalent to 100W. Structurally based on a balanced vane type motor, it has achieved high efficiency and durability through structural improvements, use of most suitable materials selected in order to minimize energy losses.