A thermal encapsulation apparatus for reducing heat loss from a vehicle component includes an insulating layer which, together with a surface of the component, forms a cavity between them. The apparatus also includes at least one baffle located within the cavity so as to define at least one cell therein. Within the cell, a convective-driven airflow caused by a temperature gradient between the surface of the component and the insulating layer is recirculated. The apparatus allows the component to store heat when it is not operational so that upon restarting the component, e.g. the vehicle engine, there is reduced friction in the moving parts, particularly in relatively cool ambient temperatures.

A sound-permeable metal plate, which is a plate processed to have concavity and convexity formed thereon, may include: a plurality of cells protruding from the plate; and a flat base portion formed between the plurality of cells, wherein each of the cells includes a plurality of wall surface parts, which are bent on and protrude from the base portion, and a cover portion extending from end portions of the wall surface parts, and each of the cells has a straight line-shaped slit formed through the plate.

A tractor in which a basic shape of a hot-wind blocking plate disposed between a motor unit and an operation unit is commonalized as a sharable element, and cutting of an outer edge portion of the hot-wind blocking plate enables application to various specifications including different sizes of motors and operation units, thus achieving convenience in assembling the tractor, enabling mass production by using the sharable element, enabling an efficient inventory storage, and providing an advantage in costs. The tractor includes: a hot-wind blocking plate disposed between a motor unit and an operation unit, the dimension of the hot-wind blocking plate being adjustable by cutting an outer edge portion of the blocking plate; and an operation unit component mounted in the outer edge portion of the hot-wind blocking plate, a position where the operation unit component is mounted is changeable depending on a specification of the operation unit.

A rotor for an electric machine comprises at least one structure-borne sound absorbing element made of a cellular metallic material being arranged in the rotor. The electric machine comprises a rotor shaft, two roller bearings and a bearing seat for each one of the two roller bearings, the rotor shaft being rotatably mounted in the two roller bearings, and a structure-borne sound absorbing element made of a cellular metallic material being arranged in the region of at least one of the two bearing seats.

A utility vehicle powertrain enclosure includes an engine and a transmission mounted to a carrier under a utility vehicle cargo box and substantially enclosed by the carrier and a plurality of panels. The carrier has a forward end pivotably attached to a frame member of the utility vehicle, and sides flexibly connected to panels alongside the engine, and a rearward end mounted to the utility vehicle with a pair of suspension members.

A multi-step method for producing a composite component made of thermoplastic material and insulating foam, the method utilizing a multiple mold with a first cell and at least one second cell, provided with a male element and a female element, the cells taking a first closed configuration and a second open configuration; the method including: closing the multiple mold and, through a channel, injecting the thermoplastic material from a hot chamber to the first cell; solidifying the thermoplastic material and opening the multiple mold to move the solidified thermoplastic material from the first cell to the second cell; closing the multiple mold and, while a new injection occurs in the first cell, an insulating foam is injected into the second cell; opening the double mold and, while the finished product is extracted from the second cell, a new transfer occurs from the first cell.

A tractor in which a basic shape of a hot-wind blocking plate disposed between a motor unit and an operation unit is commonalized as a sharable element, and cutting of an outer edge portion of the hot-wind blocking plate enables application to various specifications including different sizes of motors and operation units, thus achieving convenience in assembling the tractor, enabling mass production by using the sharable element, enabling an efficient inventory storage, and providing an advantage in costs. The tractor includes: a hot-wind blocking plate disposed between a motor unit and an operation unit, the dimension of the hot-wind blocking plate being adjustable by cutting an outer edge portion of the blocking plate; and an operation unit component mounted in the outer edge portion of the hot-wind blocking plate, a position where the operation unit component is mounted is changeable depending on a specification of the operation unit.

According to an aspect, the present embodiments may be associated with a heat shield including a sealing member. In an embodiment, the sealing member is positioned along at least a portion of a partially hemmed edge and retained thereby. Thus, the heat shield is capable of providing insulative and/or sealing properties when used, specifically thermal, vibrational and/or acoustical shielding, as well as limiting fluid flow across the edge of the heat shield.

A method for diagnosing the absence of an under-engine protection of a motor vehicle, includes: estimating a temperature of air external to the vehicle, estimating an under-hood temperature, determining whether the external-air temperature value is below the under-hood temperature value, in the affirmative, calculating an absolute value of a difference between the external-air temperature measurement and the under-hood temperature measurement, determining a diagnostic criterion by calculating a difference between the absolute value and a predetermined absolute value, obtained in the presence of the under-engine protection, comparing the diagnostic criterion against a predetermined diagnostic threshold, and emitting a diagnostic signal dependent on the result of the comparison.

Thermal insulators having cold side flap seals are described. An example thermal insulator includes a first thermal blanket and a second thermal blanket to be coupled to the first thermal blanket. The first thermal blanket includes a first insulation section, a flap, and a second insulation section. The flap extends laterally from the first insulation section and has a first portion laterally adjacent the first insulation section and a second portion laterally adjacent the first portion. The second insulation section is located on the first portion. The second thermal blanket includes a third insulation section, a fourth insulation section, and a seal. The fourth insulation section has a third portion laterally adjacent the third insulation section and a fourth portion laterally adjacent the third portion. The seal is to be compressed between the third portion and the second portion when the second thermal blanket is coupled to the first thermal blanket.