Medical devices HS code mapping

List of catalogs of this article:

• 1, At present, which countries in the world can independently develop and manufacture aviation engines?
• 2、Three Giants of Aviation Engines
• 3,Medical devices HS code mapping Introduction of CF6 engine

3. Other countries do not have the ability to independently develop fighter jets, including the United Kingdom, which can only engage in cooperative development or develop relatively low-performance ones.

Three Giants of Aviation Engines

1. The world's three major aircraft engine manufacturers are General Electric in the United States, Rolls-Royce in the United Kingdom and Prathuitney in the United States.General Electric in the United States accounts for 40% of the market share, Rolls-Royce in the United Kingdom occupies 22% of the market share, and Inclusive in the United States accounts for 9% of the market share.

2. The world's three major aviation engine manufacturers are General Electric in the United States, Rolls-Royce in the United Kingdom and Pratjutney in the United States. General Electric, abbreviated as GE, is the world's largest comprehensive power and equipment manufacturer.

3. The three major aircraft engine factories in China are: Shenyang Dawn Aviation Engine Group Co., Ltd. (referred to as Dawn Company). Dawn Company is located in Shenyang City, Liaoning Province. Founded in 1954, it is an important base for the production, research and development and maintenance of aviation engines in China.

4. The world's three major aviation engine manufacturers are General Electric in the United States, Rolls-Royce in the United Kingdom and Pratt Whitney in Canada.

Introduction of CF6 engine

The inclusion system adopts Kevlar-aluminum composite materials, which is light in weight and corrosion-resistant. The high-pressure compressor of GP7000 absorbs GE's design experience from CF6, CFM56 to GE90. The pressure ratio of its 9-stage high-pressure compressor is 19, and the 10-stage high-pressure compressor of the GE90 engine is 0.The proportion of 72 is reduced, and the 1-stage compressor is reduced.

In addition, the Boeing 747 also uses other models of engines, such as General Electric's CF6-80 series engine and Rolls-Royce's RB211 series engine.

The piston moves up, and the exhaust gas is discharged into the atmosphere. When the piston reaches the upper stop point, the exhaust valve closes and the crankshaft rotates to two weeks to complete a working cycle.

So who is the king of Asian transport aircraft, China's Yun-20 or Japan's C-2? First of all, let's analyze the power system a little. The engine used in Japan's C-2 transport aircraft is the CF6-80C2 large-channel turbofan engine of General Electric in the United States, with a single thrust of 27 tons, and the C-2 is equipped with two thrusts of 54 tons.

The earliest CF6 and CFM56 series civil aviation engines have enabled enterprises to successfully establish a position in this field.

Trent700, PW4000, GECF6. The Airbus 330, which uses cf6 engines worldwide, has Trent700, PW4000 and GECF6. Airbus A330 is Airbus' most successful wide-body aircraft.