| 摘要 |
In a pump with two pump devices 10, 20, in each of which a pump piston 11, 21 is alternately reciprocated in order to perform pressure strokes and suction strokes in a pump housing 2, both pump devices 10, 20 are arranged so as to perform the suction stroke more rapidly than the pressure stroke, and also each pump device is arranged so as to start its pressure stroke while the pressure stroke of the other pump device is still ongoing, and to be driven by its own hydraulic pump P1, P2. <IMAGE> |
