Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
  • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
  • B60R13/08—Insulating elements, e.g. for sound insulation
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
  • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
  • B32B5/022—Non-woven fabric
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
  • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
  • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
  • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
• • C—CHEMISTRY; METALLURGY
  • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
  • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
  • C04B30/00—Compositions for artificial stone, not containing binders
  • C04B30/02—Compositions for artificial stone, not containing binders containing fibrous materials
• • D—TEXTILES; PAPER
  • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
  • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
  • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
  • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
  • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
  • D04H1/4209—Inorganic fibres
• • D—TEXTILES; PAPER
  • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
  • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
  • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
  • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
  • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
  • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
• • D—TEXTILES; PAPER
  • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
  • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
  • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
  • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
  • D04H1/76—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres otherwise than in a plane, e.g. in a tubular way
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B2255/00—Coating on the layer surface
  • B32B2255/02—Coating on the layer surface on fibrous or filamentary layer
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B2255/00—Coating on the layer surface
  • B32B2255/20—Inorganic coating
  • B32B2255/205—Metallic coating
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
  • B32B2262/10—Inorganic fibres
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
  • B32B2262/10—Inorganic fibres
  • B32B2262/101—Glass fibres
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
  • B32B2262/10—Inorganic fibres
  • B32B2262/106—Carbon fibres, e.g. graphite fibres
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B2307/00—Properties of the layers or laminate
  • B32B2307/30—Properties of the layers or laminate having particular thermal properties
  • B32B2307/304—Insulating
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B2605/00—Vehicles
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B2605/00—Vehicles
  • B32B2605/08—Cars
• • C—CHEMISTRY; METALLURGY
  • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
  • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
  • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
  • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
  • C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
• • C—CHEMISTRY; METALLURGY
  • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
  • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
  • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
  • C04B2111/20—Resistance against chemical, physical or biological attack
  • C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures

Definitions

• TITLE "Element for vehicle thermal insulating, in particular motor vehicles, and method for manufacturing said element"
• the present invention relates to an element vehicle for thermal insulation, in particular motor vehicles, and to a relative method for manufacturing said element.
• a material of the type mentioned above can comprise glass fiber, basalt fiber, etc. These material are sometimes used to create products for thermal insulation.
• a further drawback lies in the production process with which products for thermal insulation are produced, which turn out to be scarcely efficient both from an economic point of view and from a technical point of view.
• An object of the present invention is to provide an element for vehicle thermal insulation, which is able to solve this and other drawbacks of the prior art and which, at the same time, can be produced in a simple and low-cost fashion .
• one of the technical problems solved by the present invention is that of providing an element for thermal insulation, which guarantees high performances.
• a further object is to provide an element for thermal insulation, which has a shape that is convenient for the use for which it is intended.
• a further object is to provide a method for manufacturing an element for vehicle thermal insulation.
• FIG. 1 is a perspective view of an element for thermal insulation manufactured according to an explanatory embodiment of the present invention.
• figure 2 is a front view of the element shown in figure 1 ;
• figure 3 is a cross-sectional view of the element shown in figure 2, along line III-III;
• figure 4 is a cross-sectional view of the element similar to the one shown in figure 3, but representing an element for thermal insulation manufactured according to a further embodiment of the present invention
• FIG. 5 is a cross-sectional view of the element shown in figure 4, along line V-V;
• figure 6 is a cross-sectional view similar to the one of figure 2, but representing an element for thermal insulation manufactured according to another embodiment of the present invention
• figure 7 is a cross-sectional view similar to the one of figure 2, but representing an element for thermal insulation manufactured according to a further embodiment of the present invention
• FIG. 8 is a perspective view of an exhaust manifold according to an explanatory embodiment of the present invention.
• figure 9 is a cross-sectional view of the manifold shown in figure 8.
• element 10 for vehicle thermal insulation in particular motor vehicles.
• this use of element 10 should not be interpreted as limiting for the scope of protection of the present invention, since, as a matter of fact, it can also be used, if necessary, for other types of vehicles, for example vehicles for sea and lake navigation or aircrafts.
• the invention is intended to be mainly applied to heat sources, such as the ones resulting from the presence of an engine, in particular an internal combustion engine.
• Element 10 for vehicle thermal insulation comprises mineral fiber.
• Element 10 has a substantially tubular shape and a cavity 24, and it comprises:
• element 10 is manufactured by means of a needle-punching process, to which said mineral fiber is subject .
• said cavity 24 houses a foreign body, such as a heat source.
• Examples of said foreign body can be parts or components of a vehicle that tend to heat up when they are working, for example parts of the engine, exhaust pipes, etc..
• the use of element 10 associated with a foreign body suited to be subject to heating should not be interpreted as strictly limiting for the scope of protection of the present invention.
• the foreign body can also be - alternatively- a cold source or an object that tends to cool down when it is working, for example pipes in which a coolant flows within a conditioning or refrigeration system.
• the mineral fiber comprises basalt fiber.
• the mineral fiber consists of the sole basalt fiber .
• the mineral fiber can comprise glass fibers, carbon fibers, and other known mineral fibers.
• Figures from 1 to 7 show, by way of a non-limiting example, and with special reference to figure 5, that the tubular shape has a circular cross section.
• a tubular shape having a cross section with a different shape for example one that transversely defines an oval or elliptical profile.
• Figure 3 shows an explanatory embodiment of the present invention, wherein element 10 comprises a layer 29 of mineral fiber (e.g. basalt fiber), which, in turn, has:
• mineral fiber e.g. basalt fiber
• Figure 4 shows a further embodiment of the invention comprising :
• inner layer 30 is transversely or radially adjacent to outer layer 32; in other words, layers 30 and 32 border one another and are in contact with one another.
• said outer layer 30 and inner layer 32 of mineral fiber have a circular annular cross section and are concentric.
• At least one between said outer surface 20 and said inner surface 22 is associated with a metal coating layer.
• the metal layer can be associated so as to coat surfaces 20 and 22 on the inside and/or outside.
• the aforesaid metal layer can be applied to the embodiment described above with reference to figure 3, which means the one in which element 10 comprises one single layer of mineral material indicated with 29.
• the metal layer can coat outer surface 20 and/or inner surface 22, for example according to one of the following configurations:
• the metal layer coats the sole outer surface 20;
• the metal layer coats the sole inner surface 22; and - the metal layer coats both outer surface 20 and inner surface 22.
• element 10 has inner layer 32 and outer layer 30, as described above.
• the sole inner layer 32 - in correspondence to the inner surface - is coated with the metal layer, here indicated with number 42.
• element 10 comprises a pair of metal layers, wherein the first metal layer 40 and the second metal layer 42 coat inner layer 30 and inner layer 32, respectively.
• the sole outer layer 30 - in correspondence to outer surface 20 - can be coated with the metal layer (details not shown) .
• element 10 can comprise the pair of layers of mineral fibers, as described above, and between the two layers of mineral fibers there in interposed a metal layer.
• the metal layer transversely or radially separates the two layers of mineral fibers from one another.
• element 10 can comprise a plurality of layers of mineral fiber, a larger number than the pair of layers shown, for example, in figures 6 and 7.
• This embodiment can also involve the use of one or more metal layers, which can coat the layers of mineral fiber in at least one of the following configurations (or, if necessary, combined with one another) :
• the metal layer coats the outer surface carried by the layer of mineral fiber arranged in a transversely or radially outer position
• the metal layer coats the inner surface carried by the layer of mineral fiber arranged in a transversely or radially inner position
• the metal layer is interposed in the space arranged between two transversely or radially adjacent layers of mineral fiber.
• the aforesaid metal layer can be provided with a plurality of holes (not shown) .
• the holes carried by the metal layer can have different shapes and sizes, according to the technical needs of the case in point; for example, these holes can be circular holes, slits, holes with a geometric shape, holes with an irregular shape, etc..
• the metal layer forms a metal net .
• the aforesaid metal layer is substantially continuous, namely without holes.
• the particular substantially tubular shape of cavity 24 is adapted to house a foreign body with an oblong shape, such as an element having a substantially tubular shape as well, such as for example a pipe, an exhaust duct of an internal combustion engine, etc..
• element 10 for vehicle thermal insulation surrounds the foreign body, thus guaranteeing better performances in terms of insulation and ensuring greater compactness for the assembly made up of element 10 for thermal insulation and the foreign body.
• an element 10 for thermal insulation similar to the one described above can easily be included in different types of vehicles, such as for example: a car, a motor vehicle, a motorcycle, and if necessary a ship, an aircraft, etc..
• the present invention also relates to an exhaust manifold, generally adapted to expel exhaust gases generated by an endothermic engine and comprises an element 10 manufactured according to any one of the different embodiments and variants described above.
• figure 8 shows an exhaust manifold 50 comprising an inlet duct 52 and an outlet duct 54, among which there is interposed an intermediate portion (especially, though not necessarily, having a larger diameter compared to said ducts 52, 54), around which there is arranged element 10 according to the present invention.
• element 10 included in the exhaust manifold 50 has a structure that resembles the one shown in figures from 4 to 8; namely, it comprises:
• a third layer 56 is arranged on the inside of said inner layer 32 of mineral fiber.
• the third layer 56 is arranged on the inside of cavity 24 formed by inner surface 22 and is in contact with said inner surface 22.
• the third layer 56 can comprise any material; conveniently, it comprises a catalytic material, a soundproofing material, etc.. In this way, the manifold can gain advantageous properties, such as a smaller environmental and/or noise pollution.
• the third layer 56 has a passage duct 58, adapted to allow a fluid, such as for example an exhaust gas, to flow between inlet duct 52 and outlet duct 54.
• a fluid such as for example an exhaust gas
• element 10 included in exhaust manifold 50 is coated, on the outside, with a protection layer 60 (for example made of metal), which is useful to protect the mineral fibers of element 10 from wear, abrasions, impacts, humidity, water, dirt, etc..
• a protection layer 60 for example made of metal
• element 10 included in exhaust manifold 50 comprises one or more metal layers 40, 42, similarly to the embodiments described above.
• coating layer 60 mentioned above can coincide with outer metal layer 40 described with reference to some of the embodiments discussed above, to which reference is made for the sake of brevity.
• an element 10 for vehicle thermal insulation comprising the following steps:
• the step of providing a thin layer of mineral fiber comprises the following operating steps:
• a further operating step is carried out in order to blend the mineral fibers of the aforesaid mattress.
• a plurality of overlapping layers of mineral fiber are obtained in a known manner and are then subject to the needle-punching process, so as to make them "thick", thus obtaining a compact tubular structure for element 10.
• the needle-punching step which is carried out by shaping the plurality of overlapping thin layers into a compact tubular structure, can be performed in a fashion known to a person skilled in the art, for example using the relative machine.
• the step of cutting element 10 so that is has a predetermined length.
• element 10 is cut at predetermined time and/or space intervals, so as to obtain a plurality of elements 10 with a predetermined length.
• a nonwoven fabric of mineral fiber preferably basalt fiber, is obtained .

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Mechanical Engineering (AREA)
• Ceramic Engineering (AREA)
• Materials Engineering (AREA)
• Structural Engineering (AREA)
• Organic Chemistry (AREA)
• Physics & Mathematics (AREA)
• Acoustics & Sound (AREA)
• Inorganic Chemistry (AREA)
• Exhaust Silencers (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

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Family Applications (1)

Country Status (2)

Family Cites Families (7)

• 2015
  • 2015-07-22 EP EP15767253.6A patent/EP3172086A1/de not_active Withdrawn
  • 2015-07-22 WO PCT/IB2015/055539 patent/WO2016012953A1/en not_active Ceased

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