| 摘要 |
A distributed flow filter device for efficiency improvement of a metal foam filter for a vehicle is provided to improve durability of the filter device and to remove various kinds of exhaust gas by installing a metal mat surrounding a metal foam filter to keep a form of the metal foam filter in the original condition and partitioning the filter device into multiple compartments. A distributed flow filter device(70) for efficiency improvement of a metal foam filter for a vehicle comprises a case(10) including an inlet(11) and an outlet(12), a front support flange(20) vertically fixed to a front part of the filter surrounding a pipe(13) inside the case to fix the pipe and to prevent the filter from moving forward, a rear support flange(30) vertically fixed to a rear part of the filter surrounding a pipe(13) inside the case to fix the pipe and to prevent the filter from moving backward, a filter unit(40) including a metal foam filter(41) of a multilayer shape or a roll shape between the front and the rear support flange, through which inflow exhaust gas passes, and a metal mat(42) surrounding the metal foam filter to keep a form of the metal foam filter in the original condition and to improve durability, and a pipe(13) installed in the filter member, having many holes(60) and a cone(14) or a pyramid inserted, to improve flow of the exhaust gas and to prevent formation of a gradient of a flow amount, thus collecting particles uniformly inside the pipe.
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