| 摘要 |
<p>The compressor has dry-running piston-cylinder units (2, 4, 6) including separate linear drives (14, 16, 18) e.g. ball and screw spindles, for moving a piston. A control device (28) is designed such that the linear drives are controllable individually in speed and stroke. The control device changes a stage pressure ratio of the piston-cylinder units by the individual control of the linear drives. The piston-cylinder units are designed such that cylinders of the respective piston-cylinder units have differently large inner cross sections.</p> |
