Holding sealer and exhaust gas processing device
An exhaust gas treatment device and technology for exhaust gas treatment, which are used in exhaust devices, mufflers, engine components, etc., can solve the problems of exhaust leakage, reduce the sealing performance of the maintenance seal, and achieve the purpose of suppressing leakage and suppressing local position differences. Effect
Active Publication Date: 2010-08-18
IBIDEN CO LTD
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Problems solved by technology
Untreated exhaust gas leakage can occur due to such cracks reducing the sealing performance of the retaining seal
Method used
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The present invention provides a holding sealer and an exhaust gas device. The object of the invention is to provide a holding sealer which can restrict the leakage of the non-processed exhaust gas, and also provide an exhaust gas processing device using such a holding sealer. A holding sealer is provided comprising a mat base member including inorganic fibers and a protective sheet provided on asurface of the mat base member, in which the holding sealer is formed as a rectangular shape, wherein the protective sheet is extended in a different direction inside the surface of the protective sheet, and the protective sheet is placed on the surface of the mat base member such that a direction showing the maximum extension of the protective sheet is arranged at an angle except zero to a long length direction of the holding sealer.
Description
technical field The present invention generally relates to a retaining seal having a base member containing inorganic fibers and a protective sheet placed on the surface of the base member, and to a retaining seal comprising such a retaining seal Exhaust treatment device. Background technique Since the beginning of this century, the number of automobiles has grown rapidly, and with the increase in the number of automobiles, the displacement of automobile engines has also increased surprisingly. In particular, various substances in diesel engine exhaust cause environmental pollution, and thus these substances are currently seriously affecting the global environment. Under such circumstances, various exhaust gas treatment devices have been proposed, and these devices have been put into practical use. A typical exhaust treatment device has a housing (for example, made of metal, etc.) located on the exhaust pipe connected to the exhaust manifold of the engine, on which the ex...
Claims
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IPC IPC(8): F01N3/28F01N3/022
CPCF01N3/2853F01N2350/06F01N3/0211F01N3/2864Y02T10/20Y02T10/12F01N3/28B01D53/34
Inventor 杉野顺一
Owner IBIDEN CO LTD