Exhaust insulation systems and methods are described that include multiple layers. In one example, a system includes a base insulation layer covering a portion of an exhaust pipe and a hard outer cover formed from a spirally wrapped knit tape and having a length coextensive with the length of the underlying base insulation layer. The wrapped knit tape outer cover can include successive turns of tape overlapping by 25% to 75%. The knit tape can be impregnated with a thermosetting phenolic resin prior to being wrapped about the pipe.

The invention relates to a method for maintaining the temperature of fluid media in pipes even in the event of an interruption of the fluid media flow. In a first step, a heat reservoir layer (1) is produced comprising a latent heat reservoir material (2) and a matrix material (3). In a second step, the heat reservoir layer (1) is either arranged around a pipe (4) and subsequently encased with a heat damping material (5) or the heat reservoir layer (1) is brought into contact with heat damping material (5), whereby a heat reservoir damper composite (51) is obtained, and the pipe (4) is then encased with the heat reservoir damper composite (51) such that the heat reservoir layer (1) of the heat reservoir damper composite (51) lies between the pipe (4) and the heat damping material (5) of the heat reservoir damping composite (51).

A length of a main pipe is provided. The main pipe has an internal surface and an external surface. A plurality of channels, tubes or conduits is attached to the external surface of the main pipe and spaced about a circumference thereof. A spray foam insulation is applied to the external surface of the main pipe. Prior to curing the spray foam insulation, a compressive force is applied against an exposed outer surface of the spray foam insulation to prevent a bulge from forming over the channels, tubes or conduits so that the outer surface of the insulation has a uniform radius.

A component of an exhaust system for an internal combustion engine. The component comprises an exhaust system structure having an interior through which exhaust gases flow and an exterior, and a thermal insulating wrap for thermally insulating at least a portion of the exterior of the exhaust system structure. The thermal insulating wrap comprises an aqueous mixture comprising an inorganic binder and inorganic filler particles, and a fabric comprising inorganic fibers. The fabric is impregnated with the aqueous mixture so as to form a pliable binder wrap. The pliable binder wrap is wound completely around at least a portion of the exhaust system structure. It can be desirable for the component to further comprise at least one thermal insulator comprising inorganic fibers, where the thermal insulator is disposed between the pliable binder wrap and the exterior of the exhaust system structure.

Apparatus and method for maintaining temperature in a sub-sea device, in particular in relation to fluid in the device. A material having a high latent heat on phase change is used to release latent heat to the fluid when the fluid temperature decreases towards a threshold value.

An article with at least two extruded thermoplastic polymer foam pieces that fit together to form a length of foam having a generally annular cross section, each piece having a concave surface such that the concave surfaces adjoin to form an internal edge defining a hole within the generally annular cross section; wherein each piece has a density less than 36 kilograms per cubic meter, a product of density times average cell size that is less than 17 millimeters*kilogram per cubic meter, and a thermal conductivity of 35 milliwatts per meter*Kelvin or less.

Provided herein are a radiant insulation protector manufacturing apparatus and a radiant insulation protector manufactured using the same which includes a tubular type core member having excellent thermal resistance and durability and an aluminum sheet protection member for external heat radiation overlapped on the core member in a spiral type to wrap the core member, thereby preventing the aluminum sheet protection member from being crumpled and torn and being capable of being directly inserted into an object like a sleeve.

Methods of and systems for forming pipe insulation are disclosed. The pipe insulation has properties that are non-homogenous through its thickness.

A subsea pipeline has a steel pipe surrounded by a thermally-insulating coating system having at least one thermal insulation layer. The thermal insulation layer has a thermally-insulating matrix in which elongate tensile elements of a thermoplastic polymer, such as monofilament yarns, are embedded. The pipe is preheated to promote bonding between the matrix and the elongate elements and between successive layers of the coating system.

Methods of and systems for forming pipe insulation are disclosed. The pipe insulation has properties that are non-homogenous through its thickness.