In the exhaust inner cone, which component is enclosed by a thermal blanket?

In the exhaust inner cone, which component is enclosed by a thermal blanket?

• A. Turbine rear scavenge oil pump
• B. Turbine rear frame
• C. Exhaust gas recirculation valve
• D. Oil cooler

Answer: (A)

The key idea is heat management in the hot exhaust area. In the exhaust inner cone, components that sit close to the hot flow need protection to prevent heat from degrading oil and seals. The turbine rear scavenge oil pump is mounted right near the turbine exhaust region, so it’s surrounded by a thermal blanket to minimize radiant heat transfer to the oil system. This keeps oil temperatures in check, reduces the risk of oil coking, and helps maintain reliable lubrication for the scavenging pump. The other components aren’t typically enclosed by a thermal blanket in this area. The turbine rear frame is mainly structural, not a target for blanket enclosure. The exhaust gas recirculation valve is part of exhaust management, not a peripheral oil component that requires blanket protection in the inner cone. The oil cooler is a separate heat exchanger aimed at cooling oil, not something that’s wrapped inside the exhaust inner cone.

The key idea is heat management in the hot exhaust area. In the exhaust inner cone, components that sit close to the hot flow need protection to prevent heat from degrading oil and seals. The turbine rear scavenge oil pump is mounted right near the turbine exhaust region, so it’s surrounded by a thermal blanket to minimize radiant heat transfer to the oil system. This keeps oil temperatures in check, reduces the risk of oil coking, and helps maintain reliable lubrication for the scavenging pump.

The other components aren’t typically enclosed by a thermal blanket in this area. The turbine rear frame is mainly structural, not a target for blanket enclosure. The exhaust gas recirculation valve is part of exhaust management, not a peripheral oil component that requires blanket protection in the inner cone. The oil cooler is a separate heat exchanger aimed at cooling oil, not something that’s wrapped inside the exhaust inner cone.