Methods and systems are provided for a coupling device. In one example, the coupling device may be formed of a composite material and positioned between an exhaust system and a vehicle chassis. The composite material may include aluminum particles dispersed in an elastomer matrix to reduce an overall thermal absorptivity of the composite material.

An automotive exhaust system isolator including an elastomeric body. The elastomeric body includes a central member having a through hole for inserting a pin of an exhaust system, and a peripheral member being configured to be coupled to a vehicle body, which surrounds the central member and is connected to the central member. The elastomeric body further includes two support arms having a first end and a second end, the first and second ends of the respective support arms being joined to the peripheral member, and the central member being connected to the two support arms by means of respective lateral bridges, so that, in use, the first ends of the support arms are positioned in an upper part of the peripheral member and the second ends are positioned in a lower part of the peripheral member, the central member being positioned between both support arms.

A hedge trimmer has at least one cutting blade and an internal combustion engine operatively connected to the at least one cutting blade so as to drive the at least one cutting blade reciprocatingly. The internal combustion engine has an exhaust gas muffler with an outlet for discharging exhaust gases from the exhaust gas muffler. A multi-part exhaust gas pipe is connected seal-tightly to the outlet of the exhaust gas muffler and connects the outlet of the exhaust gas muffler to an outlet opening where the exhaust gases exit from the hedge trimmer. The multi-part exhaust gas pipe has a plurality of pipe sections, including at least a first pipe section and a second pipe section, wherein the second pipe section is embodied separate from the first pipe section. At least one of the plurality of pipe sections is made of plastic material.

Provided is an insulator which is capable of reducing an abnormal noise. A first mounting hole engaging a vehicle body side is formed in a first portion, and a second mounting hole engaging an exhaust pipe side is formed in a second portion disposed to be spaced apart from the first portion. The first section and the second portion are coupled to each other by the coupling portion. The first portion and the second portion are adapted such that at least the inner peripheral surfaces of the first mounting hole and the second mounting hole are configured from a rubber-like elastic body having a self-lubrication property.

The disclosure provides a fixing device for connecting an exhaust system component to a vehicle body, including: a carrier for attachment to the vehicle body; and an elastomer element connected to the carrier. The elastomer element has a connection recess into which a widened end portion of a holding element of the exhaust system component can be inserted, such that a connection region of the elastomer element defining the connection recess at least partially undercuts the widened end portion of the holding element in a joining direction. A fixing device comprises a stiffening structure stiffening the connection region of the elastomer element to impede an extraction of the widened end portion of the holding element.

An automotive exhaust system isolator including an elastomeric body. The elastomeric body includes a central member having a through hole for inserting a pin of an exhaust system, and a peripheral member being configured to be coupled to a vehicle body, which surrounds the central member and is connected to the central member. The elastomeric body further includes two support arms having a first end and a second end, the first and second ends of the respective support arms being joined to the peripheral member, and the central member being connected to the two support arms by means of respective lateral bridges, so that, in use, the first ends of the support arms are positioned in an upper part of the peripheral member and the second ends are positioned in a lower part of the peripheral member, the central member being positioned between both support arms.

The invention relates to a ship, comprising: at least one casing that delimits a cavity extending vertically across the ship's decks; at least one exhaust flue that is installed inside said casing and comprises a plurality of concentrated mass components and a plurality of components with mass distributed in length; a plurality of structures that support the plurality of said components inside the casing. Said support structures comprise: a plurality of main platforms, which define a main support base inside said cavity and is connected to walls of the casing at a ship deck by means of the interposition of main elastic suspensions; and a plurality of secondary platforms, which are directly or indirectly supported only by one of said main platforms and defines a secondary support base arranged at a different height with respect to the main support base that is defined by the corresponding main platform.

The invention relates to a ship, comprising: at least one casing that delimits a cavity extending vertically across the ship's decks; at least one exhaust flue that is installed inside said casing and comprises a plurality of concentrated mass components and a plurality of components with mass distributed in length; a plurality of structures that support the plurality of said components inside the casing. Said support structures comprise: a plurality of main platforms, which define a main support base inside said cavity and is connected to walls of the casing at a ship deck by means of the interposition of main elastic suspensions; and a plurality of secondary platforms, which are directly or indirectly supported only by one of said main platforms and defines a secondary support base arranged at a different height with respect to the main support base that is defined by the corresponding main platform.

An exhaust device in which a muffler is disposed on a side of a straddle-type vehicle includes the muffler including a tail pipe configured to discharge exhaust gas and protruding rearward, a tail cover covering a periphery of the tail pipe behind the muffler, and a protector for heat shield interposed between the muffler and the tail cover. Inner sides of the tail cover and the protector in a vehicle width direction are configured to be fixed to each other by a fastening member. An elastic locking portion is formed on an outer side of one of the tail cover and the protector in the vehicle width direction, and a holding portion configured to hold the elastic locking portion is formed on an outer side of another of the tail cover and the protector in the vehicle width direction.

A shock absorber and a metal cover reduce contact noise generated as a shock absorbing member hits a collar and have higher vibration damping performance. A shock absorber absorbing vibration to a heat insulator covering an exhaust manifold as a vibration source includes a collar, a grommet, an annular compression mesh including a shock absorbing material, and a spiral spring overlaid on a compression mesh. The compression mesh has a center hole loosely receiving a collar shaft. The spiral spring spiral in a plan view has a spring constant equal to or smaller than that of the compression mesh. The compression mesh includes a restriction ridge along a lower large-diameter portion to restrict radial movement of the spiral spring relative to the compression mesh. The circumferential contact area X of the lower large-diameter portion with the restriction ridge ranges between 40% and 55%.