A sound insulation arrangement for an air-conditioning system may include a gas-tight housing and a sound insulation element. The housing may include an air inlet and an air outlet. The sound insulation element may be composed of an insulation material and may be fixed in the housing. The sound insulation element may have an inlet side disposed about the air inlet and an outlet side disposed about the air outlet such that the sound insulation element defines an air conduit in the housing.

A self-driving or autonomous vehicle comprises a seat movable between an upright position and a reclined position and a ceiling display for displaying user interface elements and for receiving user input when the seat is in the reclined position. The ceiling display may be slidable and/or pivotable. The ceiling display may automatically move when the seat is reclined.

The present invention relates to molded foam having no hollow space caused in a plate-shaped portion. The molded foam comprises a tube body and a plate-shaped portion joined to the outer side of the tube body. The expansion ratio of the molded foam is lower than two, and a value of a thickness B/a thickness A as a relationship between the thickness A of the tube body at the periphery of a point joined to the plate-shaped portion and the thickness B of the plate-shaped portion is less than 2.82.

There is provided an underfloor duct which enables inspection of electric equipment to be easily performed, has a simple structure, and hardly allows water to intrude into a duct passage. An underfloor duct according to an aspect of the present invention is an underfloor duct, provided under a floor of a railcar, for storing electric equipment including a cable. The underfloor duct includes: a box having a frame that projects upward, and an opening that opens downward; and a lid that closes the opening and forms a duct passage between the lid and the box. An end portion of the box is located outside an end portion of the lid in a car width direction.

A system for cooling a heat generating component of a vehicle. The system includes a blower of a vehicle heating, ventilation, and air conditioning (HVAC) system. An air duct extends from the blower to the heat generating component to cool the heat generating component.

A ventilating tube may include a body through which air is flowable in an air flow direction and a sound attenuating mechanism for attenuating airborne noise. The sound attenuating mechanism may be a wavelength resonator, which may include at least one resonance chamber. On one side, the at least one resonance chamber may have an opening which opens the at least one resonance chamber into the body transversely to the air flow direction.

Disclosed is a vehicle air conditioner, wherein an integrated air conditioning module using a heat pump system enables, in order to secure interior space, the optimizing of the arrangement thereof and the arrangements among the elements thereof, and the increasing of a coupling force between an air conditioning module and a distribution duct.

Provided is a construction machine with which it is possible to shorten a duct for an air conditioning device disposed in a driver's cab, and to secure space for disposing a hydraulic hose, a control valve and the like under the floor of the driver's cab. A hydraulic excavator 1 is provided with a cabin 6 covering an maneuvering unit 5, a turning frame 7 on which the cabin 6 is mounted, and an air conditioning device 8 for air conditioning the inside of the cabin 6, wherein: the turning frame 7 includes a cabin installation portion 7a in which the cabin 6 is installed; the cabin installation portion 7a includes a box-shaped right frame 72d having a first opening portion 731 and a second opening portion 732 that communicate with one another, and an air conditioned air discharge opening of the air conditioning device 8 communicates with the first opening portion 731.

A tractor cab fresh air intake includes a pair of air intake covers mounted to a plurality of body panels. Each air intake cover has an air intake opening adjacent a lower end. The body panels may be attached to a pair of C-posts of a tractor cab frame. Air outlet openings adjacent the upper end of each air intake cover extend through the body panels into the pair of C-posts.

Provided herein is a system and method for heat exchange of a vehicle. The system comprises an enclosure disposed on the vehicle. The enclosure comprises a vent at a base of the enclosure. The enclosure houses one or more sensors. The enclosure comprises a fan disposed at a base of the enclosure. The heat exchange system comprises an deflector disposed on the vehicle outside the enclosure and configured to direct an airflow into the vent of the enclosure. The heat exchange system comprises a motor configured to: generate electricity from the airflow and selectively supply electricity to operate the fan. The heat exchange system comprises a controller configured to adjust the deflector and regulate an amount of electricity supplied from the motor to the fan.