| 摘要 |
This compressor is provided with a drive shaft, a housing, a rotor, and cradles. The rotor is formed in an annular shape having cradle windows radially penetrating through in the radial direction. The rotor can rotate within the rotor chamber together with the drive shaft while being in sliding contact with the housing at the circumferential surface extending in the direction parallel to the axis. The cradles are provided in the cradle windows so as to be capable of pivoting about pivot axes. When pivoting, the cradles maintain the compression chambers in an airtight state by being in contact with the housing at both pivoting ends of the cradles, the pivoting ends extending along the direction parallel to the axis. The rotor chamber comprises an outer operation chamber which is located on the outside of the rotor, and an inner operation chamber which is located on the inside of the rotor. The cradles, and either the outer operation chamber and/or the inner operation chamber form the compression chambers, the volumes of which are varied by the rotation of the rotor. |
