Mat material and exhaust gas purification device

JPWO2025109903A1Pending Publication Date: 2025-05-30
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Patent Information

Application Number
JP2025559091
Authority / Receiving Office
JP · JP
Patent Type
Applications
Priority Date
2023-11-21
Filing Date
2024-10-11
Publication Date
2025-05-30

AI Technical Summary

Technical Problem

Existing mat materials used in exhaust gas purification devices tend to sag excessively during transportation, potentially causing collisions with other devices or columns in the workplace, which can lead to operational disruptions and safety concerns.

Method used

A mat material comprising a laminated structure with two types of mats: a first mat that sags easily and a second mat that is more resistant to sagging, where the second mat is positioned below and the first mat above during transportation, ensuring the sag amount of the entire mat material is 60 mm or less.

Benefits of technology

The proposed mat material effectively reduces sagging during transportation, minimizing the risk of collisions and ensuring stable handling and installation in exhaust gas purification devices, even in high-temperature environments.

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Abstract

This mat material comprises: a laminated mat in which a plurality of mats including inorganic fibers and each having a rectangular shape in a plan view are laminated; and a fixing member for fixing the laminated mat. The mat material is characterized in that: the plurality of mats include a first mat and a second mat; and, regarding a sagging amount measured through a sagging test by laminating and fixing two mats of the same type, the sagging amount of the first mat is larger than the sagging amount of the second mat, and the sagging amount of the mat material measured with the second mat below and the first mat up is 60 mm or less.
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