SCROLL TYPE FLUID MACHINERY

摘要

PROBLEM TO BE SOLVED: To suppress increase of size and weight of scroll type fluid machinery while reducing thrust load (compression reaction force) acting on a turn scroll. SOLUTION: Pressure in a back pressure chamber 19 (a motor chamber 3a) is intermediate pressure which is higher than suction pressure and lower than discharge pressure. Consequently, increase of size and weight of a motor housing 3 constituting the scroll type fluid machinery, namely, the back pressure chamber 19 can be suppressed while reducing thrust load (compression reaction force) acting on the turn scroll 6. COPYRIGHT: (C)2005,JPO&NCIPI