AM.III.K.K2
KnowledgeTurbine engine cowling air flow.
From the FAA library
- Glossary
direction of flow. Core engine. The gas generator portion of a turboshaft, turboprop, or turbofan engine. The core engine consists of the portion of the compressor used to supply air for the engine operation, diffuser, combustors, and turbine(s) used ... temperatures. Critical altitude. The altitude above which a reciprocating engine will no longer produce its rated horsepower with its throttle wide open. Critical engine. The engine of a twin-engine airplane whose loss would cause the greatest yawing effect. Critical…
- Chapter 12: Transition to Complex Airplanes › Turbocharging › Heat Management
cools less efficiently. Also, the less dense air causes the compressor to work harder. Compressor turbine speeds can reach 80,000–100,000 rpm, adding to the overall engine operating temperatures. Turbocharged engines are also operated at higher power settings ... detonation, which in turn can cause catastrophic engine failure. Turbocharged engines are especially heat sensitive. The key to turbocharger operation is effective heat management. Monitor the condition of a turbocharged engine with manifold pressure gauge, tachometer, exhaust gas temperature/turbine inlet…
- Chapter 6: Lubrication & Cooling Systems › Turbine Engine Lubrication Systems
Turbine Engine Lubrication Systems Both wet- and dry-sump lubrication systems are used in gas turbine engines. Wet-sump engines store the lubricating oil in the engine proper, while dry-sump engines utilize an external tank mounted on the engine ... somewhere in the aircraft structure near the engine, similar to reciprocating piston engines mentioned earlier. Turbine engine’s oil systems can also be classified as a pressure relief system that maintains a somewhat constant pressure: the full flow type…
- Chapter 16: Cabin Environmental Control Systems › Air Cycle Air Conditioning › Component Operation
which opens, closes, and modulates. It is manually actuated from the flight deck and automatically responds to supply and air cycle system parameter inputs. Refrigeration Turbine Unit or Air Cycle Machine & Secondary Heat Exchanger The heart of the air cycle ... air conditioning system is the refrigeration turbine unit, also known as the air cycle machine (ACM). It is comprised of a compressor that is driven by a turbine on a common shaft. System air flows from the primary heat exchanger…