摘要:
A particulate filter includes a filter element comprising a non-perforated tube having an exhaust inlet at a first end and an exhaust outlet at a second end. A fibrous metallic filter medium is disposed within the filter element and is configured to trap particulate matter from an exhaust gas. A first metallic foam disk is attached at the second end of the filter element, and retains the fibrous metallic filter medium within the filter element. A second metallic foam disk may be attached at the first end of the filter element and may allow the particulate filter to be reversed with respect to an exhaust gas flow.
摘要:
A linearizing circuit is provided for a non-destructive testing instrument having circuit means developing a DC voltage having a non-linear relationship to units of measurement or of conductivity or some other characteristic measure. A plurality of linearizing stages are provided each including an adjustable resistance connected between a reference voltage source and an output line when the potential of the output line is between the reference voltage and one limit of the DC voltage. Preferably, an analog switch is provided in series with the adjustable resistance and is controlled from an operational amplifier, with a second operational amplifier being provided having an output connected through the analog switch and the adjustable resistance to the output line. The circuit is very accurate and reliable and is readily adjusted by a method wherein the resistances are adjusted in accordance with reference voltages in a certain sequence to obtain accurate adjustment with no juggling operation.
摘要:
A family of titania lanthana aluminosilicate glasses, and products such as an electronic device having a poly-silicon coating on such glass as a substrate, are disclosed. The glasses have a strain point in excess of 780° C., a coefficient of thermal expansion of 20-60×10−7/° C., a Young's modulus of greater than 12 Mpsi and are chemically durable.
摘要:
This patent disclosure relates to monitoring the quality of a reducing agent used in an emission-control system. Because emission-control systems may be used in extreme temperatures, the reducing agent used in these systems may be exposed to extreme temperatures for prolonged periods. This exposure may cause premature degradation of the reducing agent, thereby reducing the effectiveness of the emission-control system. To monitor the quality of the reducing agent, the disclosed systems and methods measure a property of the reducing agent, determine whether the measured property is out of compliance with a predetermined range, and provide a warning signal when the measured property is out of compliance.
摘要:
An exhaust particulate filter for an engine system includes a housing having an inlet, an outlet and a shell shaped to fit the particulate filter within a predefined spatial envelope. Filter elements are arranged in a composite filter assembly and are packed within a housing. Each of the filter elements includes a cartridge having a frame wrapped with fibrous metallic filter media. The composite filter assembly has a shape corresponding to the shape of the shell. Each cartridge of the composite filter assembly is reversibly coupled with a frame internal of the shell via trapping elements having a release state and a trapping state.
摘要:
A family of glasses from the rare earth alumino-silicate (RE2O3—Al2O3—SiO2) ternary system exhibiting high strain point and low liquidus temperatures; preferably the La2O3—Al2O3—SiO2 ternary system. The glasses are excellent candidates for electronics applications and have the following composition, expressed in mole percent and calculated from the glass batch on an oxide basis: 60-85% SiO2, 10-25% Al2O3, and 4-15% RE2O3.
摘要翻译:来自稀土铝硅酸盐(RE2O3-Al2O3-SiO2)三元体系的一系列玻璃显示出高应变点和低液相线温度; 优选La2O3-Al2O3-SiO2三元体系。 该玻璃是电子应用的理想候选物,并且具有以摩尔百分比表示的以下组成,并且以氧化物为基准从玻璃批料计算:60-85%SiO 2,10-25%Al 2 O 3和4-15%RE 2 O 3。
摘要:
This patent disclosure relates to monitoring the quality of a reducing agent used in an emission-control system. Because emission-control systems may be used in extreme temperatures, the reducing agent used in these systems may be exposed to extreme temperatures for prolonged periods. This exposure may cause premature degradation of the reducing agent, thereby reducing the effectiveness of the emission-control system. To monitor the quality of the reducing agent, the disclosed systems and methods measure a property of the reducing agent, determine whether the measured property is out of compliance with a predetermined range, and provide a warning signal when the measured property is out of compliance.
摘要:
Disclosed is a glass material essentially free of BaO and alkali oxide particularly suitable for the glass substrate of LCDs. The glass material consists essentially, expressed in mole percent on an oxide basis, of 70–80%, preferably 72–77% of SiO2, 3–9%, preferably 4–7% of Al2O3, 8–18%, preferably 10–16% B2O3, 3–10%, preferably 3–8% of CaO, 0–4%, preferably 0–3% RO, 0–0.2%, preferably 0–0.1% SnO, 0–1%, preferably 0 to 0.5% of XO, where RO represents, collectively, MgO, SrO and ZnO, XO represents, collectively, TiO2, ZrO2, Y2O3 and La2O3. The glass has a strain point in the range of over about 600° C., a coefficient of thermal expansion (CTE) in the range of about 23–35×10−7/° C., a density lower than about 2.35 g/cm3, a liquidus temperature lower than or equal to about 1200° C. and a durability in BHF less than or equal to 0.5 mg/cm2 weight loss.
摘要翻译:公开了一种基本上不含BaO和碱金属氧化物的玻璃材料,特别适用于LCD的玻璃基板。 玻璃材料基本上以氧化物的摩尔百分数表示,为70-80%,优选为72-77%的SiO 2,3-9%,优选4-7%的Al 3〜3%,3〜10%,8〜18%,优选10〜16%的B 2 O 3,3〜10% ,优选3-8%的CaO,0-4%,优选0-3%的RO,0-0.2%,优选0-0.1%的SnO,0-1%,优选0-0.5%的XO,其中RO表示, 统称为MgO,SrO和ZnO,XO统称为TiO 2,ZrO 2,Y 2 O 3, >和La 2 O 3 3 SUB>。 该玻璃的应变点在大约600℃的范围内,热膨胀系数(CTE)在约23-35×10 -7 /℃的范围内,密度较低 约2.35g / cm 3,液相线温度低于或等于约1200℃,BHF的耐久性小于或等于0.5mg / cm 2, 减肥
摘要:
A component of a thermal processing apparatus for a fluid stream of hydrocarbons, a precursor glass for a glass-ceramic coating on such component and a method of inhibiting deposition of a material, such as carbon, on a surface of the component.