To provide a scroll type fluid machinery capable of easily preventing burning and abrasion of a sliding part, to effectively prevent the leakage of the fluid while making a turning radius of a turning scroll variable, and furthermore, to improve the service life of a rotation preventing mechanism, and to facilitate a cope with a design change.
This scroll type fluid machinery is provided with a suction port 11A for sucking the coolant, a suction groove 11B for supplying the coolant from the suction port 11A to an autorotation preventing mechanism 26, and the rotation preventing mechanism 26 provided adjacent to the suction groove 11B. The suction groove 11B is provided at a position opposite to a turning scroll end plate 15a and a front end plate 11b at any one side of the end plate 15a and a housing 11. The autorotation preventing mechanism 26 is provided with a turning pin 31, a housing pin 32 and a projection constraining member 33 for regulating the maximum displacement of the turning pin 31 and the housing pin 32 while sliding them and allowing the displacement thereof in the radial direction.
MIURA SHIGEKI
UKAI TETSUZO
