| 摘要 |
PROBLEM TO BE SOLVED: To expand a variable range of compression capacity to wide band multistage and to improve efficiency in a low capacity band, in a variable displacement rotary compressor. SOLUTION: This variable displacement rotary compressor is provided with: a housing having first and second compression chambers separated from each other; first and second rollers installed in the first and second compression chambers, respectively; a rotary shaft for rotating the first and second rollers; a first vane for partitioning the first compression chamber while advancing and retracting in the radial direction of the first roller; second and third vanes partitioning the second compression chamber while advancing and retracting in the radial direction of the second roller and supported slidably on each other; a vane control device for holding and releasing the third vane for compression capacity control; and a drive motor allowing its rotating speed to be changed by electrical control while rotating the rotary shaft. COPYRIGHT: (C)2007,JPO&INPIT
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