Scroll compressor

A scroll compressor, comprising:

• a housing having therein a discharge pressure region, a compression pressure region and a suction pressure region;
• a fixed scroll fixed in the housing to form a discharge chamber serving as the discharge pressure region;
• and
• a movable scroll cooperating with the fixed scroll to form therebetween a compression chamber serving as the compression pressure region,
• wherein the discharge pressure region includes an oil separation chamber for separating lubricating oil from refrigerant gas discharged from the compression chamber, the oil separation chamber is connected to at least one of the compression pressure region and the suction pressure region through an oil supply passage having a flow restrictor,
• wherein the flow restrictor is provided by a gap between an oil supply hole formed in the fixed scroll and an insertion member inserted in the oil supply hole, the gap is in the form of a spiral groove provided in at least one of an inner peripheral surface of the oil supply hole and an outer peripheral surface of the insertion member.