METHOD OF INSTALLING A MULTI-LAYER BATT, BLANKET OR MAT IN AN EXHAUST GAS AFTERTREATMENT OR ACOUSTIC DEVICE

• Main Author: MYERS STEPHEN J
• Format: Patent
• Language: English
• Published: 14.06.2012
• Subjects: BLASTING; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; COMBINED OPERATIONS; ENGINE PLANTS IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; LIGHTING; MACHINE TOOLS; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; METAL-WORKING NOT OTHERWISE PROVIDED FOR; OTHER WORKING OF METAL; PERFORMING OPERATIONS; STEAM ENGINES; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TRANSPORTING; UNIVERSAL MACHINE TOOLS; WEAPONS

A method is provided for installing a multi-layer mat (24) in an exhaust gas aftertreatment or acoustic device. The method includes the steps of wrapping the mat (24) around an inner surface of the device along the same plane for at least a complete wrap around the inner surface; subsequently wrapping the mat (24) around the already completed wrap such that each of the successive wraps of the mat (24) are offset a constant distance from the plane of the previous wrap; a final wrap of the mat (24) wherein the mat is wrapped along a final plane for at least a complete wrap around the catalyst; and installing the mat (24) in the device (18) after the wrapping steps.