Scroll gas compressor having asymmetric bypass holes

A scroll gas compressor comprising:

• a spiral fixed scroll wrap on one side of a panel board comprising a fixed scroll, said fixed scroll wrap being engaged with a revolving scroll wrap on a wrap support disk comprising a revolving scroll and having a shape similar to said fixed scroll forming a pair of spiral symmetric compression spaces between the two scrolls;
• said fixed scroll and said revolving scroll comprise materials having different thermal expansion coefficients;
• a discharge port communicating with a discharge chamber at a central portion of said fixed scroll warp;
• a suction chamber outside of said fixed scroll wrap;
• a scroll compression mechanism comprising a plurality of divided compression chambers in which each compression space is continuously movable toward a discharge side from a suction side and whose volume varies to compress a fluid when said revolving scroll revolves around said fixed scroll through a rotation preventive member,
• a spiral sealing member contacting a spiral recessed groove on the entire length of the front end of said spiral revolving scroll, and
• at least two pairs of bypass holes, each hole having an end opening into a compression chamber for performing compression near an outlet of said discharge port and each hole having a second end communicating with said discharge chamber,
• wherein each of the two pairs of bypass holes includes first and second holes that are asymmetrically arranged with respect to the center of said panel board and both of the first and second holes of each of the two pairs of bypass holes are closable substantially simultaneously by said revolving scroll wrap.