Which assembly is enclosed by a thermal blanket in the exhaust inner cone?

Which assembly is enclosed by a thermal blanket in the exhaust inner cone?

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

Answer: (B)

In the exhaust inner cone, managing heat around hot, oil-bearing parts is essential. A thermal blanket is used to insulate and protect components that are close to the extreme temperatures of the exhaust flow. The turbine rear scavenge oil pump sits in that hot region and handles oil that lubricates bearings. Keeping this pump shielded by the blanket prevents oil from overheating, preserves oil viscosity, and protects seals and bearings from heat damage. The other items aren’t located in this hot inner-cone area or don’t require insulation in that spot, so they aren’t enclosed by the blanket.

In the exhaust inner cone, managing heat around hot, oil-bearing parts is essential. A thermal blanket is used to insulate and protect components that are close to the extreme temperatures of the exhaust flow. The turbine rear scavenge oil pump sits in that hot region and handles oil that lubricates bearings. Keeping this pump shielded by the blanket prevents oil from overheating, preserves oil viscosity, and protects seals and bearings from heat damage. The other items aren’t located in this hot inner-cone area or don’t require insulation in that spot, so they aren’t enclosed by the blanket.