PowerJet SaM146
The PowerJet SaM146 (Двигатель SaM146) is a family of jet engines that was developed by the PowerJet joint venture . The twin-shaft engine with a high bypass ratio is used in the Suchoi Superjet 100 .
The French engine manufacturer Safran Aircraft Engines (formerly Snecma ) developed the high-pressure components , the FADEC , the gearboxes and carried out the flight tests. NPO Saturn developed the fan and the other low-pressure components, installed the engine and ran the test bench. The parts production takes place at VolgAero .
technology
The engine is designed to be particularly easy to maintain and robust. The fairings are part of the engine and can be flipped up to allow easy access to the engine. The high-pressure turbine is single-stage, the low-pressure turbine three-stage. Two of the six stages of the high-pressure compressor are manufactured using blisk technology. The engine has an annular combustion chamber, the nozzle is equipped with a mixer. The thrust reverser is also standard . The current limit values for volume (12 dB quieter than the limits of level 4) and emissions (20% below the next limit value reduction) are observed. The two power levels are stored in the FADEC and can only be accessed by changing a coding plug.
development
The first run of the engine took place on July 9, 2006 in Rybinsk. In the meantime, a thrust of up to 82 kN has been achieved in test operation and the required thrust values have been exceeded. However, a contract between General Electric and Snecma prevents the engine from being offered in the CFM56's thrust range . The first flight on a test aircraft Il-76LL took place on December 6, 2007. On May 19, 2008, the first Superjet 100 with these engines completed its maiden flight in Komsomolsk am Amur . The first delivery was scheduled for September 2009, but EASA approval was delayed until June 23, 2010 (version SaM146 1S17). The EASA type certification for the SaM146 1S18 variant finally took place on January 17, 2012.
Technical specifications
- Thrust: 68.44 / 77.7 kN
- Bypass ratio: 4.43: 1
- Compression: 27.5: 1 / 27.9: 1
- Length: 2,070 m
- Fan diameter: 1.224 m
- Dry matter: 1708 kg
Web links
- Manufacturer website PowerJet (English)
- Type certification of the SaM146 - EASA-TCDS-E.034 (PDF; 237 kB)
Individual evidence
- ↑ FlugRevue October 2010, pp. 100–101, restart with obstacles - civil engines in Russia and the Ukraine
- ↑ SaM146 1S18 engine certified by EASA ( Memento of the original from July 11, 2012 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. Manufacturer's press release, accessed April 8, 2012
