| 主权项 |
1. A device for pumping a flowable mass, comprising:
a main body having a hollow space having an first inlet opening in fluid connection with a first mass source and a second inlet opening in fluid connection with a second mass source, and said main body being in fluid communication with a mass destination in the surroundings of said main body by a first outlet opening and a second outlet opening, said first inlet opening and said second inlet opening being disposed along a direction at a distance from each other on said main body, and wherein the first outlet opening and the second outlet opening being disposed along the direction at a distance from each other on the main body; a first body; a second body; a third body; said first body, said second body and said third body being movably disposed in the main body hollow space relative to said main body and relative to each other along the direction, and rest in sealed and slidable relation relative to an inside wall of said main body; said first body, said second body, and said third body being configured for being separately driven and controlled; said first body and said second body defining a first chamber, and by movement of at least one of said first body and said second body, both the volume of said first chamber and the position thereof relative to, or in, said main body are variable; and said first body and said third body defining a second chamber, and by movement of at least one of said first body and said third body, both the volume of said second chamber and the position thereof relative to, or in, said main body are variable. |
