SCROLL TYPE FLUID MACHINE

摘要

PROBLEM TO BE SOLVED: To relax large change of thrust gap between an end plate and a lap part of each scroll due to temperature change. SOLUTION: A scroll type fluid machine is provided with an auxiliary crank mechanism 12 provided between a turning scroll 5 and a fixed scroll 11 for preventing rotation motion of the turning scroll 5. A ring shape spacer 16 is inserted in a fixed frame 7 and a fixed part of the fixed scroll 11 and material of the spacer 16 is composed of material having thermal expansion ratio equal to or less than that of an auxiliary crank 13. Consequently, change of thrust gap due to temperature change can be relaxed. COPYRIGHT: (C)2007,JPO&INPIT