Working of an Axial Flow Compressor:

The compression is performed in a similar manner as that of a centrifugal type. The work input to the rotor shaft is transferred by the moving blades to the air, thus accelerating it. The blades are so arranged that the space between the blades form diffuser passages. Since air passes through this space, the velocity of the air relative to the blades decreases with a subsequent rise in pressure. The air is then further diffused in the stator blades, which are also arranged to form diffuser passages. In the fixed stator blades the air is turned through an angle. The new direction allows the air to pass to a second row of moving rotor blades. Usually a large number of stages are present so as to maintain a constant work input per stage.