COMPRESSION MECHANISM AND SCROLL COMPRESSOR

原文（中国語）

A compression mechanism, and a scroll compressor, for the scroll compressor are provided, wherein the compression mechanism includes a movable scroll having a movable scroll end plate and a fixed scroll having a fixed scroll end plate. A movable scroll blade and a fixed scroll blade are engaged with each other to form a series of compression cavities between the movable scroll and the fixed scroll. A series of compression cavities include a central compression cavity and fluid compression cavities located on the radial lateral side of the central compression cavity. The compression mechanism is provided with a drainage channel and a drainage control mechanism, which enables the drainage channel to selectively provide fluid communication between a first fluid compression cavity in the fluid compression cavities and the outside of the compression mechanism.