Ejector for ejection type refrigerating system

The utility model discloses an ejector for an ejection type refrigerating system. The ejector comprises an inlet bearing, a casing, an outlet bearing, a rotating blade and a rotary mixing chamber, wherein the rotary mixing chamber is installed inside the casing, the front end of the rotary mixing chamber is connected with the inlet bearing, the rear end of the rotary mixing chamber is connected with the outlet bearing, and the rotating blade is installed in a mounting groove on the inner wall of the rotary mixing chamber; and a fixing section plane of the rotating blade and the axial line of the rotary mixing chamber are parallel and coplanar, a downward sloping angle Alpha is formed between a compression section plane and the fixed section plane, and an upward sloping angle Beta is formed between a driving section plane and the fixed section plane. The mixing chamber is rotary and is provided with the rotating blade, and the rotating blade has two functions: firstly, a blade driving section drives the rotary mixing chamber to rotate under the drive of the working fluid; secondly, a blade compression section attracts the jet flow. Under the same dimensions and working conditions, the coefficient of performance (COP) can be increased by more than one time on the original basis.