Figure 19
From: Present Status and Prospect of High-Frequency Electro-hydraulic Vibration Control Technology
New type of electro-hydraulic vibration equipment driven by magnetostrictive driven pump. 1. Magnetostrictive drive pump; 2. First check valve; 3. Second check valve; 4. First directional control valve; 5. Second directional control valve; 6. Double rod hydraulic cylinder; 7. Accumulator; 8. Piston rod; 9. Left oil chamber; 10. Piston; 11. Right oil chamber; 12. Excited body