SCROLL TYPE COMPRESSION DEVICE

摘要

PROBLEM TO BE SOLVED: To reduce friction loss or the like accompanied by turn of a turning scroll. SOLUTION: Pressure in a back pressure chamber 9b is controlled to make motor drive current iM of an electric motor 3 tend to decrease. Consequently, friction loss can be surely reduced as compared with an invention determining a target back pressure based on suction pressure and delivery pressure. COPYRIGHT: (C)2005,JPO&NCIPI