| 摘要 |
The invention relates to a fluid filter (1) comprising a collecting chamber (10) for a liquid which is separated from the fluid, in addition to a filter insert (4) which comprises a filter medium which is permeable to the fluid. The collecting chamber is arranged below the filter medium (5), and a liquid sensor (19) is arranged above the deepest point of the collecting chamber (10) and the liquid sensor (19) is protected from the liquid, at least sectionally, by means of a protective wall (18, 20). Said protective wall (18, 20) extends laterally and/or below the liquid sensor (19) and a liquid permeable connection is provided from the collecting chamber (10) to the fluid sensor (19). The invention is characterized in that the permeable connection extends in a labyrinth like manner such that the fluid flowing through said connection changes direction a plurality of times, the liquid permeable connection allows the fluid to flow in a radial manner from the collecting chamber (10), which surrounds the protective wall, to the liquid sensor. Said liquid sensor is separated from the collecting chamber in the radial direction by at least two protective walls (18, 20), wherein in the radially internal protective wall, the closest to the liquid sensor, a through opening (25) which is as high as or higher than the liquid sensor (19) is provided, and a through opening (25) having the same height or higher than the liquid sensor is provided in at least one protective wall (18) which is arranged in a radial manner further to the outside. |
| 主权项 |
1. Fluid filter comprising:
a collecting chamber for collecting a liquid separated out from a fluid; a filter insert having a filter medium that is a fluid-permeable filter; a liquid sensor assembled at a lower end of the filter insert; at least two protective walls, an inner protective wall and an outer protective wall, that at least partially shield the liquid sensor and selectively prevent the separated-out liquid from impinging on the liquid sensor, the at least two protective walls extending laterally from the liquid sensor, the inner protective wall extending radially around the liquid sensor and having at least one inner-wall through-opening and the outer protective wall extending radially about the inner protective wall and having at least one outer-wall through-opening; wherein the collecting chamber is arranged below the filter medium and the liquid sensor is arranged above the lowest point of the collecting chamber; wherein the inner-wall through-opening and outer-wall through-opening effect a labyrinthine flowpath that forces fluid flowing through the labyrinthine flowpath to change direction of flow multiple times, yet enables radial flow of the fluid from the collecting chamber surrounding the at least two protective walls to the liquid sensor; and wherein the inner-wall through-opening and the outer-wall through-opening are placed at least as high as the level of the liquid sensor. |
