turbofan

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Related to High Bypass: fanjet, bypass engine

turbofan

1. a type of by-pass engine in which a large fan driven by a turbine and housed in a short duct forces air rearwards around the exhaust gases in order to increase the propulsive thrust
2. an aircraft driven by one or more turbofans
3. the ducted fan in such an engine

turbofan

[′tər·bō‚fan]
(aerospace engineering)
An air-breathing jet engine in which additional propulsive thrust is gained by extending a portion of the compressor or turbine blades outside the inner engine case.
References in periodicals archive ?
High bypass ratio generally causes worse, not better, efficiency at supersonic speeds.
So Wilde invented the wide-chord blade--for which he held the patent--and effectively the three-shaft, high bypass ratio engine.
Typical of the CAD files are: a two-spool high bypass turbojet engine; bearings; a robot-controlled welding station; a Ford GT40 model imported from mesh; an automotive custom rear upright in SolidWorks; a feeder for an automatic lathe; an aircraft rotary engine; a combined turbine and centrifugal pump in SolidWorks; a sealant applicator in SolidWorks, an assembled M4 automatic; a hydraulic motor in SolidWorks; an aircraft landing gear; plug vales; and a steam engine.
This new joint venture will focus on high bypass ratio geared turbofan technology.
From this review came a requirement for "a large military transport with high bypass engines.
Proponents of high bypass engines within the Air Force, led by CliffSimpson, got it there.
In designing the high bypass turbofan, GE made the nacelle that housed the engine part of the engine design.
Accounting for these calculated installation losses greatly diminished the calculated improvements in fuel efficiency of a high bypass turbofan.
Still, the high bypass turbofan engine was not simply an incremental step beyond the turbofans that were already flying.
Objective: The main objectives of NIPSE are to provide technologies to- reduce Integrated PowerPlant System development time of future aeroengines by 10%- enable the 2 to 3% environmental related gains in fuel burn and reduction in emissions looked at by these new aeroengine architectures (especially Ultra High Bypass Ratio and Open Rotor) through improved aeroengine equipment solutions.
Rolls-Royce has a long heritage of gear design capability from turbo-shaft, turbo-prop and LiftFanA gearbox designs and will use that knowledge and capability to develop technology for the very high bypass ratio designs of future engines.
Demand for the low-cost aircraft is expected to grow even more as the 400XTi, a version of the Hawker Beechcraft 400A/XP re-engined with Williams FJ44-3AP dual FADEC high bypass turbofans in aerodynamically improved engine nacelles, is about half the price of its competitors and has significantly lower maintenance and operating bills.