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15 70505 70506 Figure 14 Figure 15 ELECTRO-INJECTOR The injector is similar as construction to the traditional ones, plunger (2) and nozzle (3); - control solenoid valve composed of coil (4) and pilot valve (5). The solenoid valve controls spray nozzle plunger lift. Injector in rest position 1. Pressure rod — 2. Plunger — 3. Nozzle — 4. Coil — 5. Pilot valve — 6. Ball shutter — 7. Control area — 8. Pressure chamber — 9. Control volume — 10. Control duct — 11. Supply duct — 12. Control fuel outlet — 13. Electric connection — 14. Spring — 15. High-pressure fuel inlet. When coil (4) is energised, it makes shutter (6) move Injection end When coil (4) is de-energised, shutter (6) goes back to its Injection start ! The injector cannot be overhauled and therefore it 15 14 SECTION 2 - FUEL F4HE NEF ENGINES Base - February 2006 Print P2D32N00GB |