Scroll roll lubricating fluid machine (Scroll 流體 機械)

摘要

The scroll fluid machine includes stationary and orbiting scrolls arranged in the usual combination. The orbiting scroll has connected to it a crank portion of a crank shaft which is journalled by plain bearings. Axially extending oil flow passages are formed on the outer circumferential surface of the shaft at positions journalled by the plain bearings. Oil is supplied to the bearing and the flow resistances of the oil flow passages are varied, to supply lubricant to each bearing and have lubricant discharged from it in optimum volume. This causes a lubricant film of a suitable thickness to be produced in each bearing.