Aircraft propulsion system efficient at a range of speeds higher and lower than sound's
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Cut-away view of a prospective ADVENT engine
A variable cycle engine (VCE), also referred to as adaptive cycle engine (ACE), is an aircraft jet engine that is designed to operate efficiently under mixed flight conditions, such as subsonic, transonic and supersonic.
The next generation of supersonic transport (SST) may require some form of VCE. To reduce aircraft drag at supercruise, SST engines require a high specific thrust (net thrust/airflow) to minimize the powerplant's cross-sectional area. This implies a high jet velocity supersonic cruise and at take-off, which makes the aircraft noisy.
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A variablecycleengine (VCE), also referred to as adaptive cycleengine (ACE), is an aircraft jet engine that is designed to operate efficiently under...
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priming pump system was used to assist starting of British engines. Aircraft fitted with variable-pitch propellers or constant speed propellers are started...
functioned to perpetuate the combustion cycle, and attained stable resonance frequency at 43 cycles per second. The engine produced 2,200 N (490 lbf) of static...
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Atkinson cycle variant of the 2AR-FE. It has the same bore and stroke, but the cams and pistons are unique. Only the intake valves are variable with VVT-i...
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