| 摘要 |
The invention relates to a beverage preparation device comprising a cylindrical chamber with a jacket provided with a filling opening for receiving a powder-like or granular substance and an ejection opening for ejecting the substance, a first and a second compression element, positioned perpendicularly with respect to a longitudinal axis of the chamber, a displacement member for relative displacement of the first compression element with respect to the jacket between a filling position, a compression position and an ejection position, wherein the compression elements in the filling position delimit a filling volume and the compression elements in the compression position delimit a preparation volume positioned along a longitudinal axis and at a distance from the filling volume, wherein the first compression element engages the inner wall of the jacket in a fluid-tight manner and a fluid supply channel and a fluid discharge channel that in the compression position is in fluid- communication with the preparation volume. |
