Fuel System.txt

Card Set Information

Author:
romanweel
ID:
246867
Filename:
Fuel System.txt
Updated:
2013-11-14 09:32:09
Tags:
S76 Systems fuel
Folders:

Description:
S76 fuel system
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  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)

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