| 摘要 |
PROBLEM TO BE SOLVED: To easily achieve the lubricity improvement of a pin-and-disk type rotation preventing mechanism, and the weight saving, downsizing and productivity improvement of a scroll type fluid machine.SOLUTION: The rotation preventing mechanism of the scroll type fluid machine includes: a rotation preventing pin projecting from a seating part of a casing; a housing hole facing the seating part and bored at a back face of a base plate with a spiral wall of a movable scroll erected thereon; a restraining member 40 housed in the housing hole; and a crank chamber secured between the back face and the seating part to cause a working fluid including a lubrication oil to flow and communicate with an outer peripheral side of the seating part. The restraining member includes: a pair of slide surfaces 40a respectively sliding to the housing hole and the seating part side; a pin slide hole 46 opened to each slide surface to slide due to the engagement of the rotation preventing pin; and a lubrication hole 44 opened to each slide surface to communicate with the crank chamber due to the revolving turn motion of the movable scroll with respect to a fixed scroll.SELECTED DRAWING: Figure 3 |
