摘要:
A pollution control device has a metal housing, a solid pollution control device disposed within the metal housing, and a mounting mat disposed between the pollution control element and the housing for positioning the pollution control element and for absorbing mechanical and thermal shock. The mounting mat includes a layer of intumescent material having at least one insert formed of a resilient, flexible, fibrous non-intumescent material. The insert is positioned along at least a portion of at least one lateral edge of the mounting mat to prevent erosion of the intumescent material and to provide a seal between the pollution control element and the housing.
摘要:
A pollution control device has a metal housing, a solid pollution control device disposed within the metal housing, and a mounting mat disposed between the pollution control element and the housing for positioning the pollution control element and for absorbing mechanical and thermal shock. The mounting mat includes a layer of intumescent material having at least one insert formed of a resilient, flexible, fibrous non-intumescent material. The insert is positioned along at least a portion of at least one lateral edge of the mounting mat to prevent erosion of the intumescent material and to provide a seal between the pollution control element and the housing.
摘要:
A pollution control device has a metal housing, a solid pollution control device disposed within the metal housing, and a mounting mat disposed between the pollution control element and the housing for positioning the pollution control element and for absorbing mechanical and thermal shock. The mounting mat includes a layer of intumescent material having at least one insert formed of a resilient, flexible, fibrous non-intumescent material. The insert is positioned along at least a portion of at least one lateral edge of the mounting mat to prevent erosion of the intumescent material and to provide a seal between the pollution control element and the housing.
摘要:
An insulating liner for use with exhaust system or pollution control devices such as catalytic converters and diesel particulate filters or traps. The insulating liner is shown in relation to an end cone for use with a catalytic converter. The end cone includes an outer metallic end cone and a free-standing insulating cone positioned within the outer metallic end cone. A substantial portion of the inner surface of the insulating liner is exposed to hot exhaust gas from an internal combustion engine. The insulating liner is preferably formed of a composite containing inorganic fibers and/or particles, which makes the insulating liner rigid, yet capable of withstanding repeated mechanical and thermal shocks.
摘要:
Non-woven mat including basalt and amorphous refractory ceramic fibers, bio-soluble ceramic fibers, and/or heat-treated silica fibers. Embodiments of the non-woven mat surprisingly have a Resiliency Value after three thermal cycles from 25° C. to 700° C./400° C. of the Real Condition Fixture Test at least 1.1 times greater than the Resiliency Value of a comparable non-woven mat consisting of any individual type of fibers of the non-woven mat. The non-woven mats are useful, for example, in pollution control devices and other thermal insulation applications.
摘要:
Inorganic fiber mounting and insulating sheet materials for use in pollution control devices with at least one edge of the inorganic fiber sheet material having at least one group of two or more fibers fused together. A pollution control device comprising such a sheet material. A process for cutting at least one section from a sheet containing inorganic fiber material, where the sheet material is suitable for use in a pollution control device. The fibrous sheet material is cut so that the cut edge has at least one group of two or more fibers fused together. A laser beam can be used to cut the desired section out of the inorganic fiber sheet material.
摘要:
Multilayer mats, pollution control devices containing the multilayer mats, and methods of making the multilayer mats are provided. The multilayer mats include a non-intumescent layer sandwiched between two intumescent layers. The outer layers of the mats contain intumescent materials.
摘要:
Intumescent vermiculite flakes useful in mountings of catalytic converters are prepared by partially dehydrating vermiculite ore to afford a uniform content of chemically bound water from about 1.0 to 3.2% by weight and a uniform bulk density from about 0.2 to 0.9 g/cm.sup.3. Such a mounting affords good support to the monolith at warm-up temperatures, exerts adequate holding forces at operating temperatures without danger of cracking the monolith, and does not incur gradual reduction in holding forces at operating temperatures. The mounting layer can be applied as either a mat or a paste.
摘要翻译:用于催化转化器安装的膨胀蛭石薄片通过部分脱水蛭石矿石制备,以提供约1.0至3.2重量%的均匀含量的化学结合水,并且具有约0.2至0.9g / cm 3的均匀堆积密度。 这种安装在预热温度下对整体提供良好的支撑,在操作温度下施加足够的保持力,而不会破坏整料,而不会在工作温度下持续力的逐渐降低。 安装层可以用作垫子或糊料。
摘要:
A double-walled exhaust system component having glass bubbles disposed between inner and outer pipes and method of making the same. The glass bubbles have a size distribution wherein, on a bulk volume basis, at least 90 percent of the glass bubbles have a size of less than 150 micrometers.
摘要:
The present invention provides a mounting mat (30) for mounting a pollution control monolith (20) in a pollution control device (10). The mounting mat has a bulk density of 0.12 to 0.3 g/cm3 and comprises (i) a layer of chopped magnesium aluminium silicate glass fibers and (ii) a layer of ceramic fibers obtainable from a sol-gel process. Preferably, the layer of chopped magnesium aluminium silicate glass fibers and the layer of ceramic fibers define opposite major surfaces of the mat. The present invention further provides a pollution control device (10), comprising a pollution control monolith (20) arranged in a metallic casing (11) with the mounting mat (30) disposed between the metallic casing (11) and pollution control monolith (20).
摘要翻译:本发明提供一种用于将污染控制整料(20)安装在污染控制装置(10)中的安装垫(30)。 安装垫的堆积密度为0.12至0.3g / cm 3,并包括(i)一层切碎的硅酸镁玻璃纤维和(ii)可由溶胶 - 凝胶法获得的一层陶瓷纤维。 优选地,切碎的硅铝酸镁玻璃纤维层和陶瓷纤维层限定垫的相对的主表面。 本发明还提供了一种污染控制装置(10),其包括布置在金属壳体(11)中的污染控制整料(20),其中安装垫(30)设置在金属壳体(11)和污染控制整料(20)之间 )。