| 词条 | CFE CFE738 | ||||||||||||||
| 释义 |
The CFE738 is a small turbofan engine aimed at the business/commuter jet market manufactured by the CFE Company, and is used on the Dassault Falcon 2000. Design and developmentThe success of the GE27/GLC38 gas generator development of the 1980s led to the formation of the CFE Company by GE and the Garrett Engine Division of Allied Signal (now Honeywell) in 1987. The CFE738 is a two-shaft design, consisting of a single stage bypass fan connected via one shaft to a 3-stage low-pressure (LP) turbine at the rear of the engine; with a six-stage combination low-pressure/high-pressure (LP/HP) axial/centrifugal compressor (five axial stages and one centrifugal stage) driven by a two-stage HP turbine, between the fan and the LP turbine, on the other shaft. There is an axial combustion chamber between the compressor stages and the HP turbine. A mixer is built in to the jetpipe to mix cold bypass air with the hot exhaust gases. The engine has an overall pressure ratio of 35:1, which is extremely high for an engine with a centrifugal compressor. Other cycle parameters are a bypass ratio of 5.3 and airflow of 240 lb/s (108.9 kg/s). The take-off thrust is 5,600 lbf (24.9 kN), flat-rated to ISA +15°C (30°C, 86°F). The engine was first run in 1990 and first flown on a Boeing 727 testbed on 31 August 1992.[1] It was certified by the American Federal Aviation Authority on 17 December 1993. Applications
Specifications{{jetspecs|ref= |type=Turbofan |length=68.3 in |diameter=35.50 in (Fan) |weight=1,214 lb (Basic) Dry Weight: 1,325 lb |compressor=Fan/Compressor Stages: 1/5+1C |combustion= |turbine=High-Pressure Turbine/Low-Pressure Turbine Stages: 2/3 |fueltype= |oilsystem= |power= |thrust=Max. Thrust (Sea Level Static): 26.3 kN (5,918 lbf), Cruise Net Thrust (Mach 0.8, 40000 ft, ISA): 1310 lbf |compression= ~30:1, Bypass Ratio: 5.3 |aircon= 240 lb/s |turbinetemp= |fuelcon= |specfuelcon=(Sea Level Static): 0.369 lb/(h lbf), (Mach 0.8, 40000 ft, ISA): 0.645 lb/(h lbf) |power/weight= |thrust/weight= }} See also{{Aircontent|related=
|similar engines= |lists=
|see also= }} References1. ^{{cite magazine|magazine=Aviation World|publisher=Air-Britain|title=Turbojet Engines - The High Bypass Turbofans Part 2|date=2004|page=132|issn=1742 996X}}
External links
2 : High-bypass turbofan engines|Turbofan engines 1990–1999 |
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