| 摘要 |
The present invention relates to a water injection device of an internal combustion engine (2), which water injection device comprises a water tank (5) for storing water, a delivery element (3) for delivering the water, wherein the delivery element (3) is connected to the water tank (5), at least one water injector (6) for injecting water, the injector being connected to the delivery element (3), a pressure sensor (14) which is arranged in a line region (8) between the delivery element (3) and the water injector (6), and a control unit (10) which is designed to determine, on the basis of pressure data of the pressure sensor (14), a formation of vapour in the aforementioned line region (8) when the water injector (6) is closed and the delivery element (3) is deactivated. The present invention also relates to an internal combustion engine having a water injection device (1) according to the invention and to a method for operating a water injection device (1) according to the invention. |
