| 摘要 |
<p>A multi-stage gas compressor apparatus in a two-stage version comprises a first, central cylinder, forming a cylindrical chamber (8), and a second cylinder arranged concentrically with the first, central cylinder, forming an annular chamber (9). A first, circular piston (12) is axially movable within the first, cylindrical chamber (8), and a second, annular piston (5) axially movable within the annular chamber (9). A force - exerting member (10) is connected to the first (12) and second (5) pistons. In the apparatus, a first one-way valve (2) is arranged to allow gas transfer from a gas inlet (2) to an end portion of the annular chamber (9). A second one-way valve (11) is arranged to allow gas transfer from the end portion of the annular chamber (9) to an end portion of the cylindrical chamber (8). A third one-way valve (3) is arranged to allow gas transfer from the end portion of the cylindrical chamber (8) to a gas outlet. The force - exerting member (10) may be attached to the sea bottom (15), and the apparatus (1) may be provided with a floating element (6) which causes the apparatus (1) to float on the sea surface (16) while the pistons (11, 5) are anchored to the sea bottom (15). The annular piston (5) may be forced to complete each stroke before the first cylinder (12) starts to move by means of an activating block on the central, anchored rod pulling the central piston (12).</p> |
