FILTER DEVICE WITH CLOSURE AND KEY PORT CONNECTION

摘要

The invention relates to a filter device with a housing (10) having connections for a fluid which can be secured to a filter pot (16) which has at least one filter element (20) secured by a holder (18), and with a closure (22) preventing the undesired leakage of fluid. As the closure (22) has at least two sealing plates (36a, b) which at least partly bound ports (40a, b) in mutually staggered array in two different planes and which can be mutually moved under the effect of a power store (50) for closing or opening the ports (40a, b) in such a way that, as the filter pot (16) is moved further away from the housing (10), the closure (22) gradually seals at least one of the connections and/or the filter pot (16) off from the environment, the filter device has a universally usable closure which can be economically produced, requires little space inside the device and operates reliably.