Patent ID: 7381037
Filing Date: 2008-06-03
Classification: F04C

Abstract:
1. An apparatus for varying the capacity of a scroll compressor having a container, a fixed scroll located within the container, and a discharge space being located between the fixed scroll and the container, the apparatus comprising: a bypass passage for connecting a compression pocket under intermediate pressure among compression pockets formed by a wrap of the fixed scroll and a wrap of a orbiting scroll and a suction side through which refrigerant is inhaled into the compression pockets to each other, a portion of the bypass passage being a connecting member passage located in a connection member connecting the compression pocket under intermediate pressure to the suction side, the connection member being separate from the container and extending into the discharge space; an opening and closing device for opening and closing the bypass passage; and an elastic opening and closing device mounted in the bypass passage to open and close the bypass passage by the pressure of the compression pocket and the pressure of the suction side as the bypass passage is opened and closed by the opening and closing device, wherein the bypass passage includes: wherein an insertion space is provided in the second hole to have an inside diameter larger than the inside diameter of the second hole and predetermined length such that the elastic opening and closing device is mounted therein, and wherein the elastic opening and closing device is mounted in the insertion space.