An identical 225 large engine will be assembled or tested in China

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An identical 225 large engine will be assembled or tested in China

2017-06-03 18:54:57 789 ℃

Core prompt

C929 aircraft engine selection or a game: China bizfafa company in the research of CJ-2000, Ukraine a new generation of aero engine AI-38 (China Tianjiao aviation and Ukraine progress design bureau and Ukraine motor through the company jointly in Ukraine D-18T engine based on the developed PD-35), and Russia plans to develop thrust of 35 tons of all the candidate qualification. Among them, the world's largest aircraft D-18T engine maximum thrust of 225 kn with up to 229, is the world's rare large thrust engine. The Sino Ukrainian joint engine manufacturing base in Chongqing has begun to install the test rig.

Data figure: Security 225 engine features

01

C929 aircraft engine selection or a game

In May 22nd, China Russia international commercial aircraft Co., Ltd. was established in Shanghai, which means that China and Russia jointly developed C929 large body aircraft into the substantive stage of operation. This is another important event in the history of the development of large civil aircraft in May 5th, following the success of the first successful flight of China's single channel large aircraft C919.

C919 matching is CFM international company developed LEAP-X1C engine, but C929 aircraft engine selection or a game.

Plans to operate in 2025 - 2027 C929 aircraft, the standard for two channel cabin layout, the basic type of voyage 12000 km, seat class 280, the main competitive aircraft are Boeing 787 and Airbus A350 XWB.

"This design index is very high on the plane, also means that the development of C929 will face many technical challenges, one of which is a high bypass ratio engine." Beijing Tianjiao aviation industry investment limited Innovation Institute Vice President, national people plan expert Wang Guangqiu said, according to the technical index of the Boeing B787-9 and Airbus A350-800 aircraft, two were takeoff weight 250 tons, in about 0.25, to meet the standard of C929, maximum take-off thrust of about 63 tons.

C929 adopts twin design, with takeoff thrust of approximately 31.5 tons per engine.

02

Rolls Royce is stepping up and China talks

Public disclosure of information, the C929 will include assembly of a new generation of by-pass turbine engine technology to improve the integrated performance index lower than similar aircraft, 10% - 15% in service wide body aircraft fuel consumption.

Which kind of engine can help C929 achieve this goal? GM and Rolls Royce, dominated the global wide body aircraft market power, accounted for 45% and 55%.

The Boeing 787 and Airbus A350 aircraft, the engine of choice were general Genx, Rolls Royce Trent 1000 and Trent XWB." Wang Guangqiu believes that in addition to the three existing large bypass turbofans, Chinese bizfafa company in the research of CJ-2000, Ukraine a new generation of aero engine AI-38 (China Tianjiao aviation and Ukraine progress design bureau and Ukraine motor through the company jointly in Ukraine based on the research and development of D-18T engine and PD-35, Russia) the plan developed by the thrust of 35 tons is the candidate qualification. The thrust of CJ-2000 and AI-38 is somewhere around 30 - 34 tons.

According to foreign media reports, this company is stepping up with the relevant units Chinese regular talks, its development trent XWB latest models, designed for the Airbus A350 XWB customized, is currently the highest efficiency fuel, reduce the environmental impact of a large engine. More than 1600 orders have now been placed.

03

CJ-2000, PD-35, and AI-38Engine pairthan

CJ-2000 engine, the heart of domestic large aircraft". According to the development plan, in 2022 completed the test verification machine standard, from 2025 to 2030 to complete airworthiness certification. Analysts believe that this time node to catch the first C929 bus is difficult.

Since C929 is jointly developed by China and Russia, Russia has developed a 35 ton PD-35 engine on the basis of a single channel passenger engine PD-14. It will also be a potential competitor. But like CJ-2000, PD-35 also takes 10 years to develop.

And Ukraine jointly developed by AI-38 is a derivative of new type high bypass ratio engine, the prototype D-18T is reputed internationally renowned, has been in service for an -225 and an -124 two aircraft for 22 years "the power of heart". Ukraine developed large turbofan engine and the Rolls Royce Trent three series engine has the same rotor structure, has the characteristics of high efficiency, small volume and light weight.The latest news, the Sino Ukrainian joint engine manufacturing base in Chongqing, has begun to install the test stand.

D-18T engine

The world's largest aircraft safety -225 is using the motor through the company's D-18T engine, and is currently in the air cargo leasing industry burgeoned brother Ann -124 is the same product. D-18T engine maximum thrust of 229 kn, is one of the few large thrust engine. For Chinese, the high bypass ratio turbofan engine is the key, is overcome. Although Chinese in the development of a high bypass ratio engine of their own, but if you have D18T such a mature high bypass ratio engine, can also turn to their own research and development of a high bypass ratio engine for some room for improvement. If China bought Ann 225, it would be possible to buy D18T engines as part of ANN 225, while it was difficult for China to obtain such spare parts, and Ukraine has hardly sold the engine.

Aero engine development can drive the whole aviation industry development, Chinese currently requires similar enterprises to all levels of China aviation industry models provide the perfect engine, with China market demand and national level planning, like Ma Dasic, this kind of enterprise will Tianjiao aviation to bring new impetus to the aviation industry, also let we are looking forward to more breakthroughs Chinese aviation industry.