T53 Flow Divider 1-180-190-03
The flow divider assembly receives fuel from the fuel control, and delivers it to the main fuel
manifold through two passages.
- At low N1 speeds, the flow divider sends fuel through the primary system of the manifolds. - As Nl speed increases, fuel pressure increases and the flow divider opens ports to the secondary system of the main fuel manifold. The flow divider is equipped with a drain port to drain fuel from the main fuel manifolds and flow divider during engine shutdown.
• Fuel Flow Divider And Dump Valve
Directs fuel flow to the primary and secondary channels of the main fuel
• Primary Fuel Lines
Directs primary fuel to the primary channel of the main fuel manifolds
• Secondary Fuel Lines
Directs secondary fuel to the secondary channel of the main fuel manifolds
• Dump Valve Drain Line
During engine shut down, purge fuel pressure from the fuel manifolds flow
through the dump valve drain line and to the combustor drain valve body and is
• Combustion Chamber Drain Valve
Provides a port through which the fuel manifolds drains purged fuel overboard
Fuel leaking from the combustion chamber drain valve during an engine
operation would indicate the o-rings of the dump valve portion of the flow
divider are defective.