| 摘要 |
PROBLEM TO BE SOLVED: To provide a new filter.SOLUTION: A fluid filter device is equipped with an upper housing shell, a lower housing shell, a peripheral frame and a pleat pack element with a folded pleat medium. The peripheral frame is molded on the medium for fixing the medium in the peripheral frame. The medium is equipped with two or more kinds of media having different filtration density with each other. A flow control element is arranged for varying a ratio between a first medium region and a second medium region in response to a change in at least one of the temperature, pressure, flow rate and/or viscosity of a fluid.SELECTED DRAWING: Figure 1 |
