| 摘要 |
<p>A two-stage compressor comprises a housing (1), a rotor (10) rotatably arranged in the housing (1), and a piston assembly (20), which is intended for stroke motion and which comprises at least one part which is non-rotatably arranged inside the rotor (10). The piston assembly (20) has two opposite piston ends (21, 22) and a duct (33) extending through the piston assembly (20). A first and a second compression chamber (31, 32) are adapted to compress, in a first and a second compression stage, a supplied gas. A cam assembly (40) is connected to the rotor (10) and the piston assembly (20) to transfer the rotary motion of the rotor (10) to the axial motion of the piston assembly (20). The compressor is adapted to be driven by an external source of power via a drive means (12) connected to the rotor.</p> |
