An adaptive friction compensation scheme for direct drive valve was proposed based on LuGre model.
针对直接驱动阀阀芯摩擦力，论述了基于模型的摩擦力自适应补偿。
The device by the human operator launches, such as through the cone-shaped gear reducer drive, direct drive valve stem up and down movement of the valve gate.
本装置由人力操作手轮，通过锥形齿轮等减速传动，直接驱动阀门阀杆上下移动，启闭阀门。
This paper develops a direct-drive electrohydraulic servo valve of a completely new structure.
研制了一种全新结构的直接驱动电液伺服阀。
Robust cast iron valve body with a fabricated rotor, polyurethane adjustable replaceable blades and a direct drive.
铸铁阀体配合支架式转子，聚酯易拆除叶片和直驱方式。
Robust cast iron valve body with a fabricated rotor, polyurethane adjustable replaceable blades and a direct drive.
铸铁阀体配合支架式转子，聚酯易拆除叶片和直驱方式。
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