Figure 13From: Present Status and Prospect of High-Frequency Electro-hydraulic Vibration Control Technology2-DOF fault tolerant electro-hydraulic directional control valve: a rotary failure state of valve sleeve; b movement failure state of spool. 1. Rotary motor; 2. Valve sleeve; 3. Spool; 4. Valve body; 5. Pin; 6. Compression spring; 7. Linear motor; i. Valve groove; ii, iii. Valve sleeve windowBack to article page