SILOET Project 6 - Core Technology Validation: Systems

A jet engine’s lean-burn combustor needs a fuel delivery system that can feed separate pilot and main fuel lines without creating stagnant hot spots that cause coking, and without adding complex pipework that slows the engine’s response to power changes. This project tackles a gap left by earlier demonstrator programmes (ANTLE and EFE), which focused on the combustor and turbine tip clearance technologies themselves but not on the systems that control and integrate them. The challenge is that these control systems must meet conflicting demands—fast response, no fuel stagnation, and compatibility with the whole engine architecture—and current designs fall short. If successful, the work will raise the Technology Readiness Level of the full system needed to support a lean-burn combustor, and deliver improved tip clearance control beyond what existing programmes planned. That could mean more efficient, lower-emission aircraft engines entering service sooner, reducing aviation’s environmental impact without sacrificing performance or safety. The impact is on a system most passengers never see but that quietly governs how cleanly and responsively a jet engine runs.