| 摘要 |
In a coffee machine (1), a sealed capsule (2) is fed with a certain amount of axial clearance into a cup (42) aligned along a horizontal axis (9) with a pressurized hot-water sprinkler (13), and is moved towards the sprinkler (13) to press an annular flange (4) of the sealed capsule (2) in fluidtight manner against the sprinkler (13), to pierce a front sealing wall (6) of the sealed capsule (2) by means of a first piercing device (21), to feed pressurized hot water through the sealing wall (6) to expand the sealed capsule (2) axially and eliminate the axial clearance, and to bring an end wall (5) of the sealed capsule (2) into fluidtight contact with a second piercing device (44), and pierce the end wall against the second piercing device (44), so that coffee flows out through the second piercing device (44). |
