Fuel System.txt

  1. Max fuel
    143.2 gal per side.....286.4 gal total

    281.2 total usable
  2. Fuel Valve Assembly
    Components:
    • Purge valve
    • Start injector electrovalve
    • Stop injector electrovalve,
    • Manual stop purge valve
  3. Fuel Valve Assembly
    Operation on Start:
    • Stop evalve is open
    • Start evalve energized to allow fuel to start injectors
    • At 5%N1, pressurizing valve allows fuel to injection wheel
    • At 45%N1, electrical power to Start evalve shuts off
    • P3 air pressure ventilates start injectors
  4. Fuel Valve Assembly
    Operation on Shutdown:
    • Stop evalve is closed (shuts off fuel to injection system)
    • Pressurizing valve closes causing Purge valve to purge residual from from centrifugal injection wheel (dumped back into fuel tank)
Author
romanweel
ID
246867
Card Set
Fuel System.txt
Description
S76 fuel system
Updated