An apparatus for shielding hot regions, in particular of an internal combustion engine, includes a heat shield with a through hole. The apparatus has a component, in particular a heat source, with a fastening region which has a receptacle and a shoulder which surrounds the receptacle at least partially. The shoulder extends through the through hole of the heat shield. The apparatus has a fastening element, in particular a screw, which fastens the heat shield to the fastening region, the fastening element being supported on the shoulder, extending through the through hole of the heat shield, and being fastened in the receptacle.

A mechanically attached thermal protection system (MATPS) includes an insulating tile having a top surface, a bottom surface, and a plurality of access holes that extend through the insulating tile from the top surface to the bottom surface. A plurality of brackets include a first end attached to the insulating tile and a second end including a mounting hole therethrough, the second end being positioned proximate the bottom surface of the insulating tile. A plurality of fasteners are positioned proximate the bottom surface of the insulating tile and at least partially positioned within one of the access holes so as to be accessible from the top surface of the insulating tile through one of the plurality of access holes. A MATPS including a plurality of air channels within the insulating tile and a method for sealing these air channels to those within an adjacent structure is also described herein.

An exhaust gas recirculation heat exchanger for allowing a flow of exhaust gas therethrough and a transfer of heat between the exhaust gas and a heat exchange fluid and a heat shield for shielding heat from exhaust gas flowing from an inlet of an exhaust gas recirculation heat exchanger toward a plurality of conduits disposed downstream from the inlet are provided. The heat shield includes a heat shield body and a plurality of apertures extending through the heat shield body and configured to be aligned with a plurality of conduits of the exhaust gas recirculation heat exchanger in a direction of flow of the exhaust gas through the exhaust gas recirculation heat exchanger.

A soundproof cover which covers a target object is provided with: a sound absorbing sheet which is formed in a planar shape by means of a sound absorbing material and which covers the surface of the target object; and a reinforcing member which is disposed in a position engaging with engaged portions of the target object, and which positions the sound absorbing sheet with respect to the target object with at least a portion of the sound absorbing sheet exposed. The reinforcing member is provided with: a first reinforcing portion, which is an elongate member and which is disposed in a position engaging with a first engaged portion of the target object; and second reinforcing portions, which are elongate members and which are disposed in different positions to the first reinforcing portion.

A vehicle includes an internal combustion engine, a supercharger placed behind an internal combustion engine, and a first insulator and a second insulator covering the supercharger. The first insulator is provided between the internal combustion engine and the supercharger and covers the supercharger from its front side. The second insulator covers the supercharger from its upper side, its rear side, and its lower side. An upper edge of the first insulator and an upper edge of the second insulator are positioned above and ahead of the supercharger and define a first opening. The first opening faces forward when the first opening is viewed from an inner region surrounded by the first insulator and the second insulator.

A sound absorber/insulator in a motor vehicle is constructed of outer layer nonwoven scrims, perforated films, and a fill material core, which are typically fibers or foams. Fibers could be of a nonorganic nature such as glass, or an organic one like polyester or cotton. Foams could be of open cell polyurethane chemistry. The materials are enveloped in a thermoforming process wherein all layers are substantially adhered to each other. The fill material is responsible for sound attenuation whereby a higher weight input provides additional attenuation benefit. Specialized technical nonwoven scrims can also be used to enhance the sound attenuation where required. Increasing absorption properties by adding weight or using highly technical nonwovens is costly and results in a weight penalty. Perforated films of certain thicknesses, hole sizes, and hole densities significantly enhance sound attenuation properties of an absorber and do so with no changes to the manufacturing process, a minimal increase in weight, and at a substantially lower cost. The films can be positioned in different locations throughout an insulator, depending on absorption requirements.

In a method for producing a multilayered heat shield, which has a first metal layer and a second metal layer that has an insulating layer arranged between the metal layers, the metal layers are connected at the edge by a flanging. To produce the heat shield, the first metal layer, the insulating layer and the second metal layer are placed into a first pressing tool. This is effected in such a way that an edge portion of the first metal layer protrudes beyond an edge portion of the second metal layer. The insulating layer is set back from the edge portions of the first metal layer and of the second metal layer.

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.

A fastening device for fastening a shielding part to a fastening partner in a vibration-decoupled manner having a collar bushing that has at least one bushing core and two collars that protrude outward in a radial direction (R) and are spaced apart from each other in an axial direction (A), with the collars forming an interstice between themselves and having a bridge element, which is positioned with its radially inner region in the interstice; and the bushing core extends through an opening of the bridge element with a radial play (s),
wherein a damping element is positioned in the axial direction (A) between the collars and in the radial direction (R) between the bushing core and a radial stop of the bridge element and is dimensioned so that the radial mobility of the bridge element relative to the bushing core is limited to an effective radial play (s′) that is reduced relative to the radial play (s).

A lower structure of a vehicle is configured to include a floor panel, an exhaust member arranged below the floor panel, and a cover member provided between the floor panel and the exhaust member and attached to the floor panel. The cover member includes front fixation portions provided on the front side and fixed to the floor panel and a bead portion arranged behind the front fixation portions and extending in a vehicle width direction.