Rolling cylinder displacement compressor

A rolling cylinder displacement compressor, comprising:

• a circular columnar rolling cylinder having a cylinder groove;
• a revolving piston having a slide groove;
• a stationary cylinder having a pin mechanism;
• a piston revolving drive source as a drive source of revolving motion of the revolving piston;
• a drive transmission portion connecting the revolving piston and the piston revolving drive source;
• a frame through which the drive transmission portion penetrates;
• and
• a casing incorporating the revolving piston, the rolling cylinder, the stationary cylinder, the piston revolving drive source, the drive transmission portion, and the frame,
• wherein the revolving piston, the rolling cylinder, and the stationary cylinder form a compression portion,
• the revolving piston relatively performs reciprocation motion in the cylinder groove,
• the stationary cylinder is provided with a suction flow path, a discharge flow path, and a bypass valve flow path,
• a suction chamber, a compression chamber, and a discharge chamber are formed by the reciprocation motion in the compression portion,
• a minimum pressure bypass port as an opening of a minimum pressure bypass valve flow path, which is connected to the compression chamber formed in the compression portion in a lowest pressure state, of the bypass valve flow path is arranged such that the compression chamber faces at least one of an opening of the discharge flow path or the minimum pressure bypass port, and
• the minimum pressure bypass port is configured such that a minimum pressure port center as the center of the minimum pressure bypass port is arranged in a rotation advanced-side region with respect to an advanced radius line as a line connecting a cylinder advanced corner point of the compression chamber at the start of a compression stroke and the rotation center of the rolling cylinder.