Scroll compressor

A scroll compressor, comprising:

• a scroll unit for compressing a refrigerant by orbiting of a movable scroll relative to a fixed scroll;
• a crank mechanism for converting rotary motion of a rotary shaft into orbiting motion of the movable scroll and transferring the orbiting motion;
• a housing for accommodating the scroll unit, the housing including a suction port of the refrigerant on an outer peripheral wall located on an outer peripheral side of the scroll unit;
• and
• a sealing device for sealing between the housing and the rotary shaft, wherein
• the housing includes:
• a crank chamber in which the crank mechanism is positioned,
• a seal chamber in which the sealing device is positioned,
• a communication hole for communicating the crank chamber with the seal chamber, and
• a first guide groove extending from an opening of the communication hole in the seal chamber to a vicinity of the sealing device, and wherein
• the crank mechanism includes a counterweight attached to the rotary shaft, and
• the communication hole is formed at a position which is intermittently covered with the counterweight as the counterweight circles.