Английская Википедия:ACAE CJ-1000A
Шаблон:Short description Шаблон:Use dmy dates
Шаблон:Infobox aircraft engineThe ACAE/AECC CJ-1000A (Chang Jiang-1000A/长江-1000A) is a Chinese high-bypass turbofan jet engine currently in development by the Aero Engine Corporation of China (AECC) under its Commercial Aircraft Engines (ACAE) Shanghai division.
Design
The CJ-1000A is developed for the Comac C919 narrow-body airliner with a thrust of Шаблон:Cvt.[1]
It has a diameter of Шаблон:Cvt and a length of Шаблон:Cvt, to be compared with the CFM LEAP-1C Шаблон:Cvt diameter and Шаблон:Cvt length. It uses a similar two-spool configuration, with a one-stage fan, three-stage booster, 10-stage high-pressure compressor, two-stage high-pressure turbine and six-stage low pressure turbine, compared to the LEAP-1C seven Шаблон:Abbr stages. Its 18 wide-chord fan blades are made of hollow titanium like those of Rolls-Royce Plc., and its single annular combustor uses 3D printed fuel nozzles.[2]
Development
A model of the CJ-1000Al was exhibited at the AVIC booth of the September 2011 Beijing Air Show, and was expected to be completed in 2016.[3] At the time, entry into service was targeted for 2020 and a possible cooperation with MTU Aero Engines was studied.[4] In 2013, AVIC Engine subsidiary Shenyang Aeroengine Research Institute proposed its Шаблон:Cvt WS-20 (designed for the Y-20 military airlifter), which was still being developed, to power the C919 instead of the CJ-1000A (SF-B) which used older technology closer to the CFM56 than to the LEAP.[5] The suggestion was rejected later by Comac. Assembly of the first CJ-1000AX engine was completed in December 2017 after an 18-month process. Twenty-four more engines will support an airworthiness certification program and it should enter service after 2021.[2] In May 2018, the first engine ran in a Shanghai test cell reaching a core speed of 6,600 rpm.[6]
By May 2018, AECC intended to certify its CJ-1000 in 2027 and introduce it in 2030, eight years behind the original schedule.[7] The CJ-1000A would need Шаблон:Cvt thrust to replace the CFM LEAP. The Шаблон:Cvt CJ-1000B would power an extended-range C919 variant.[7]
In March 2023, reports emerged that the flight test campaign for the CJ-1000A engine had started on a Y-20 test aircraft.[8]
Other derivatives
CJ-2000 (AEF3500)
The CJ-2000 is a scaled-up version of the CJ-1000 Шаблон:Abbr spool and combustor core, with 10 compressor stages and two turbine stages. As of June 2018, the new Шаблон:Cvt engine destined for the CRAIC CR929 was expected to be demonstrated in 2023 and enter service in 2030. It features a new low-pressure spool with a four-stage Шаблон:Abbr compressor booster up from three, seven LP turbine stages up from six (compared to the GEnx-1B which also has six stages; the UEC PD-35 has nine HP compressor stages), as well as composite fan blades and fan case. The bypass ratio would be over 10, with a 50.3 OPR in climb, and a target TSFC of Шаблон:Cvt.[7]
CJ-500
The CJ-500 would offer Шаблон:Cvt for the Comac ARJ21.[7]
Applications
- Comac C919: as alternative to CFM LEAP
Specifications
See also
References
