A fluid injector for injecting an injection fluid into a hot flow can include a flow structure defining an injection flow channel and configured to extend at least partially into a flow path to introduce the injection fluid into the hot flow in the flow path. The flow structure can include one or more heat resistance features to protect the flow structure and the fluid from heat of the hot flow.

Provided is a shield molding blank which has an uneven structure in which an air gap 4 is formed between metal plates 2, 3 formed in overlapping wavy shapes comprising recesses and projections that are periodically continuous in two directions orthogonal to each other, the shield molding blank being cut in a desired expanded shape and having peripheral edges folded. With the shield molding blank, it is possible to mold a shield having improved shield characteristics such as a heat-shielding property and a sound-shielding property.

A vehicle exhaust system includes a tubular component having an inner surface and an outer surface. The vehicle exhaust system also includes at least one opening defined by the tubular component. The at least one opening extends through each of the inner surface and the outer surface. The vehicle exhaust system further includes a patch adapted to cover the at least one opening. The patch includes a first portion extending parallel to the central axis. The first portion defines a plurality of pores. The first portion covers the at least one opening. The patch also includes a second portion extending away from the first portion. The first portion has a first thickness and the second portion has a second thickness.

A molded three-dimensional insulator that is suitable for use in an end cone region of a pollution control device and a method of making the insulator are described. The insulator includes ceramic fibers that have a bulk shrinkage no greater than 10 weight percent. The ceramic fibers can contain alumina and silica and can be microcrystalline, crystalline, or a combination thereof.

A reductant dosing unit is disclosed, including a fluid injector having a fluid inlet and a fluid outlet. A flange is disposed proximal to the fluid outlet of the fluid injector and configured to secure to a boss associated with an exhaust path of an internal combustion engine. The flange has a largely flat body portion with a through-bore in fluid communication with the fluid outlet of the fluid injector. The flange further includes an extension which extends from the body portion toward the fluid injector and which is connected to thereto. A thermal isolator is disposed between the fluid outlet of the fluid injector and the flange. The connection between the extension of the flange and the fluid injector includes a hermetic seal, preventing exhaust gases in the exhaust path from passing between the flange extension and the fluid injector. The thermal isolator is only used as a support and thermal isolator.

An acoustic damper includes a low porosity layer section and a housing. The low porosity layer section is formed in a liner of a gas turbine combustor and has an arrangement of elongated generally S-shaped slots formed therein. The housing has a plurality of feed apertures. The housing is coupled to the low porosity layer section thereby defining a cavity such that air outside the housing is configured to flow through the apertures and through the elongated generally S-shaped slots in the low porosity layer section, thereby transforming acoustic energy into thermal energy and aiding in providing an acoustic dampening effect for the gas turbine combustor during operation thereof.

In general, this disclosure describes method of capturing and storing CO.sub.2 on a vehicle. The method includes contacting an vehicle exhaust gas with one or more of a first metal organic framework (MOF) composition sufficient to separate CO.sub.2 from the exhaust gas, contacting the separated CO.sub.2 with one or more of a second MOF composition sufficient to store the CO.sub.2 and wherein the one or more first MOF composition comprises one or more SIFSIX-n-M MOF and wherein M is a metal and n is 2 or 3. Embodiments also describe an apparatus or system for capturing and storing CO.sub.2 onboard a vehicle.

The present invention provides a sound-absorbing material having sound absorption performance with an average sound absorption coefficient of 0.70 or more in the frequency range of 800 to 5000 Hz. The present invention provides a sound-absorbing material including: a fiber layer including a plurality of holes open to a surface thereof and having a thickness of 3 mm or more; and an inorganic material layer mainly containing a calcium-based material and having a thickness of 0.4 to 0.6 mm on the surface of the fiber layer, the holes being blind holes each penetrating through the inorganic material layer and having a bottom inside the fiber layer, each hole having a depth corresponding to 50 to 90% of the thickness of the fiber layer.

Methods of and systems for filling a muffler body with a fibrous material prior to completing assembly of the muffler body are disclosed. The methods and systems prevent or otherwise reduce undesired migration of the fibrous material within the muffler body.

A fibre mat, for example a monolith support mat or end cone insulator, the mat comprising inorganic fibres having a pressure retained value at 10 minutes at 900 C. of greater than 20 kPa; and preferably a binder. The inorganic fibres comprise X and Y and K.sub.2O, the sum of which is greater than 95 wt. % wherein X is the sum of SiO.sub.2 and ZrO.sub.2 and Y is the sum of Al.sub.2O.sub.3 and La.sub.2O.sub.3, wherein ZrO.sub.2 and La.sub.2O.sub.3 is each present in up to 10 wt. % of the total weight of the inorganic fibres.