SCROLL COMPRESSOR

PROBLEM TO BE SOLVED: To provide a scroll compressor capable of preventing damage to a bearing and the like by employing a structure minimizing a thrust slide loss and surely pumping oil in an oil reservoir even in any operation state. SOLUTION: The scroll compressor 1 includes a first oil supply passage 91, a second oil supply passage 92, and a variable restriction mechanism 95. The first oil supply passage 91 is formed in a movable scroll 26, and supplies part of oil pumped from an oil supply hole 17a in a crank pin 17b to a contact surface 84 of the movable scroll 26 and a fixed scroll 24. The second oil supply passage 92 is formed in a crankshaft 17, and provides communication between the oil supply hole 17a and a bearing surface around the crankshaft 17. The variable restriction mechanism 95 is provided in the first oil supply passage 91, and increases passage resistance when differential pressure between pressure in the oil supply hole 17 and pressure near the contact surface 84 at an outlet side of the first oil supply passage 91 is smaller than prescribed differential pressure. COPYRIGHT: (C)2011,JPO&INPIT