Patent ID: 6913448

Claim:
A load-regulating device for scroll type compressors, comprising: a compressor housing having an inlet and an outlet; a bracket body fixed inside said compressor housing with a chamber being formed between said bracket body and said compressor housing; a partition block fixed inside said compressor housing and located on top of said bracket body to divide said chamber into a high-pressure chamber and a low-pressure chamber defined with said bracket body and said partition block, a letting-out hole being disposed at a center portion of said partition block; a pair of scrolls, comprising a fixed scroll and a rotary scroll convoluting each other, and being installed between said partition block and said bracket body; a round-shaped gliding block installed on a center top area of said fixed scroll directly between said letting-out hole and said fixed scroll; and a plurality of air chambers defined between said round-shaped gliding block and said pair of scrolls, wherein a pressure variation in said plurality of air chambers is used to move said round-shaped gliding block upward or downward therein; wherein a round-shaped receiving chamber is mounted on top of said fixed scroll for receiving said round-shaped gliding block therein, and said round-shaped receiving chamber has a first chamber and a second chamber, and said first chamber is mounted on top of said second chamber, with a diameter of said first chamber being larger than a diameter of said second chamber.