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The first CFM56 engine with the double-annular combustor entered service in 1995, and the combustor is used on CFM56-5B and CFM56-7B variants with the suffix "/2" on their nameplates. [ 48 ] GE started developing and testing a new type of combustor called the Twin Annular Premixing Swirler combustor, or "TAPS", during the Tech 56 program. [ 29 ]
CFM is the world's largest commercial aircraft engine manufacturer, with a 39% market share as of 2020. [1] It has delivered more than 37,500 of its engines to more than 570 operators. The name CFM is derived from the two parent companies' commercial engine designations: GE's CF series and Snecma's M series.
CFM International CFM56 General Electric GEnx The CFM International LEAP ("Leading Edge Aviation Propulsion") is a high-bypass turbofan engine produced by CFM International , a 50–50 joint venture between American GE Aerospace and French Safran Aircraft Engines .
As an example the CFM International CFM56-5A engine active clearance control uses HPC air for the HPTACC and fan bypass air for the LPTACC.Clearance control is managed by the engine FADEC which consists of an electronic control unit (ECU), an hydromechanical unit (HMU) and HP and LP ACC valves.
In terms of volume, the most impactful commercial aero engine produced by Safran Aircraft Engines is the CFM International CFM56 turbofan powerplant. This engine is both developed and manufactured via a 50-50 joint venture company, CFM International, which Safran jointly owns with the American industrial conglomerate General Electric (GE).
Southwest Airlines Flight 1380 was a Boeing 737-700 that experienced a contained engine failure [a] in the left CFM International CFM56 engine after departing from New York–LaGuardia Airport en route to Dallas Love Field on April 17, 2018.
CFM International CFM56 The PowerJet SaM146 is a turbofan engine produced by the PowerJet joint venture between Snecma ( Safran ) of France and NPO Saturn of Russia. [ 2 ] Developing 68–80 kN (15,000–18,000 lb f ) of thrust, the SaM146 is used on the Sukhoi Superjet 100 .
The following describes a recent fuel control, that used on a CFM International CFM565B engine, installed on an Airbus A320, which has a FADEC controlling and computing all the functions previously done by an HMU.