Exhaust gas treatment device
AssigneeUnifrax I LLC
InventorMark Beauharnois
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Abstract
A mounting mat for an exhaust gas treatment device includes a blend of inorganic fibers and organic nanofibrillated fibers. An exhaust gas treatment device includes a housing and a fragile structure mounted within the housing by the mounting mat that is disposed in a gap between the housing and the fragile catalyst support structure. Additionally disclosed are methods of making a mounting mat for an exhaust gas treatment device and for making an exhaust gas treatment device incorporating the mounting mat.
Claims31
An exhaust gas treatment device comprising:
- a housing;
- a fragile structure mounted within the housing;
- and
- a mounting mat disposed in a gap between the housing and the fragile structure comprising inorganic fibers and organic nanofibrillated fibers.
An exhaust gas treatment device comprising:
- a housing;
- a fragile structure located within the housing;
- and
- a mounting mat disposed in a gap between said housing and said fragile structure;
- a double walled end cone housing;
- and
- an insulation mat or molded three dimensional insulation pre-form disposed between the walls of the end cone housing, said insulation mat or pre-form comprising a blend of inorganic fibers and organic nanofibrillated fibers.
An end cone for an exhaust gas treatment device comprising:
- an outer metallic cone;
- an inner metallic cone;
- and
- cone insulation disposed between said outer and inner metallic cones, said cone insulation comprising a layer comprising a blend of inorganic fibers, organic nanofibrillated fibers, and optionally intumescent material.
An end cone for an exhaust gas treatment device comprising:
- an outer metallic cone;
- and
- self-supporting cone insulation comprising a blend of inorganic fibers, organic nanofibrillated fibers, and optionally intumescent material disposed adjacent to the inner surface of said outer metallic cone.
A double-walled automotive exhaust gas pipe comprising:
- an outer metallic pipe;
- an inner metallic pipe;
- and
- pipe insulation disposed between said outer and inner metallic pipes, said pipe insulation comprising inorganic fibers, organic nanofibrillated fibers, and optionally intumescent material.
Dependencies are inferred from the claim text.