Abstract: The operator's cab of a work vehicle is provided with a ROPS on which is mounted a roof structure. The roof structure is provided with a roof having a top surface exposed to the outside and a bottom surface facing the interior of the operator's compartment. A sound insulating foam liner having a top surface and a bottom surface is located under the roof. The top surface of the foam liner is secured to the bottom surface of the roof by adhesives. The bottom surface of the foam liner is provided with ventilating channels. The ventilating channels have two sidewalls and a top wall extending between the sidewalls. A headliner is located below the foam liner. The headliner has a top surface facing the bottom surface of the foam liner and a bottom surface facing the interior of the operator's compartment. The top surface of the headliner encloses the ventilating channels formed in the foam liner thereby forming ventilating ducts.

Abstract: A ventilation system for a long life vehicle (LLV). A rear vent currently existing on most LLV's is secured by an adapter to provide air to a squirrel cage fan or other air pump. The cooler air is ducted to the forward passenger compartment where its glass enclosure serves to heat the confines to high temperatures during sunny days. A resistor in the ductwork serves as a generally electrically-identical configuration to an auxiliary fan currently present in most LLV's. The ductwork transmits the air pumped from the rear vent to a vent assembly having a plenum and louvers with grills. The plenum provides a small and temporary reservoir for the air flow so that it may be redirected sideways to the louvers. The louvers provide course adjustment for the airflow with finer adjustment achieved through the grills. Overall advantages include greater driver and passenger well being leading to safer operation of the vehicle as well as less thermal stress for the instruments and operating controls.

Abstract: An air conditioning apparatus for a vehicle includes a front air-conditioning unit for adjusting a temperature of air blown toward a front seat side in a passenger compartment, and a rear air-conditioning unit for adjusting a temperature of air blown toward a rear seat side in the passenger compartment. In the front air-conditioning unit, a ratio between an amount of air passing through a front heater core and an amount of air bypassing the front heater core is adjusted by an air mixing door, and the temperature of air blown toward the front seat side in the passenger compartment is adjusted by the rotation of the air mixing door. On the other hand, in the rear air-conditioning unit, a flow control valve for controlling a flow rate of hot water flowing into a rear heater core is provided, and the temperature of air blown toward the rear seat side in the passenger compartment is adjusted by the flow control valve.

Abstract: Pipe-like air duct is formed of hard aluminum foil. Concaves and convexes give flexibility to the air duct. For the air duct, kraft paper is wound on both surfaces of the aluminum foil. This air duct is disposed between an outer panel and an inner panel of vehicle body along the panels, laid to the rear seat of the vehicle, and connected to a blow-off port for the rear seat. In a collision of the vehicle, the air duct is subjected to plastic deformation, by which the shock energy caused by an external force is absorbed.

Abstract: A vehicle air conditioning apparatus, provided in a vehicle where plural rows of seats are arrayed in the front-to-rear direction of the vehicle, comprises a cooler duct for guiding cool air from a cooler unit of an air conditioning unit to a portion above and between a first rear seat positioned on a second row of seats from a vehicle front and a second rear seat positioned behind the first rear seat. The cooler duct has a first outlet for ejecting cool air to the first rear seat side and a second outlet for ejecting cool air to the second rear seat side, and the first outlet is arranged in a position away from a seated portion of the first rear seat.

Abstract: A headliner for motor vehicles includes first and second sheets of material in juxtaposition to each other and adapted for positioning in a mold having two mold portions. The material of at least one of the sheets is fluid deformable with respect to another of the sheets, and is attachable to the material of the other of the sheets by the mold portions at sufficient locations to outline a potential duct between the sheets. The potential duct is adapted to receive fluid between the sheets for forming an actual duct. When fluid is received between the sheets, the material of the at least one sheet is deformed with respect to the material of the other of the sheets to define the actual duct. In one embodiment of the headliner, at least one head impact block is disposed in the duct. The headliner may also include at least one substantially air-impermeable layer disposed within the duct and attached to at least one of the the first and second sheets. Furthermore, the layer preferably includes a polymer powder.

Abstract: In a casing (11), a rear guide (23) is formed above a cylindrical impeller (13) and a stabilizer (24) is formed below the impeller. A minimum gap dimension between the cylindrical impeller (13) and the stabilizer (24) on the outlet port (17) side has a value of 14% to 24% of the outer diameter of the cylindrical impeller (13). An angle between a straight line connecting the center of rotation of the cylindrical impeller (13) and a minimum gap position on the outlet port (17) side of the stabilizer (24) and the horizontal plane has a value of 38.degree. to 43.degree.. A minimum gap dimension between the cylindrical impeller (13) and the stabilizer (24) on the inlet port (16) side has a value of not smaller than 7% of the outer diameter of the cylindrical impeller (13). An angle between a straight line connecting the center of rotation of the cylindrical impeller (13) and a minimum gap position on the inlet port (16) side of the stabilizer (24) and the vertical plane has a value of 11.degree. to 15.degree..

Abstract: A truck cab ventilation system and method is described which includes an air exhaust channel that extends from an upper channel portion adjacent the ceiling at the rear of the cab and through a lower channel portion to an exhaust vent mounted adjacent the floor of the cab over an exit opening in such floor. An inlet vent in the front of the cab produces a positive pressure within the cab which causes flow-through ventilation air flow from the front to the rear of the cab when the truck is moving. As a result, air flows into the upper channel portion of the exhaust channel and out of the exhaust vent through the exit opening to the exterior of the cab. The exhaust vent includes flexible louvers of elastomer which are held by gravity in a closed position and are moved into an open position when air flows out through the exhaust system.

Abstract: A ventilating system for a vehicle cab includes a blower which draws fresh air from the exterior of the cab into the interior of the cab. A filter housing is inserted generally transverse to the direction of air flow through a service opening in the ventilating system into the channel through which the fresh air flows. The filter housing encloses a fresh air filter. The blower also draws recirculating air from the interior of the cab through a recirculating air intake opening and blows it back through a recirculating air filter into the cab through an outlet opening. The recirculating air filter is also mounted in the filter housing. A filter insert includes a filter housing which contains the fresh air filter and the recirculating air filter, which are adjacent each other on either side of a separating wall, fresh air and recirculating air are separately filtered.

Abstract: A grill assembly comprising an anchor member adapted to fit in a duct around the periphery of a duct opening. Tie members may be slidably attached to the anchor member so that it projects outwardly from the anchor member for receiving a frame. A damper and cover may be subsequently attached to the frame.

Abstract: A truck cab ventilation system and method which includes an air exhaust channel that extends from an upper channel portion adjacent the ceiling at the rear of the cab and through a lower channel portion to an exhaust vent mounted adjacent the floor of the cab over an exit opening in such floor. An inlet vent in the front of the cab produces a positive pressure within the cab which causes flow-through ventilation air flow from the front to the rear of the cab when the truck is moving. As a result, air flows into the upper channel portion of the exhaust channel and out of the exhaust vent through the exit opening to the exterior of the cab. The exhaust vent includes flexible louvers of elastomer which are held by gravity in a closed position and are moved into an open position when air flows out through the exhaust system.

Abstract: A roof for the cab of vehicle is constructed with a hollow plastic body that is molded in one piece with a blower and a heat exchanger fitted to the hollow body. The hollow body defines a cavity that forms an air duct through which air for ventilating the cab is ducted. Shuttered external and internal air intake vents allow the selection between fresh air from externally of the cab and recirculated air from within the cab. A well open through the roof provides an emergency exit from the vehicle cab.

Abstract: The distribution assembly is arranged for mounting to a ceiling portion of an existing mobile home, that in turn includes an existing air conditioning outlet housing. The assembly employs a central plenum housing arranged to receive the air conditioning outlet housing while permitting securement by a flange of the central plenum housing to the ceiling in surrounding relationship relative to the outlet housing. A distribution duct in pneumatic communication with the central plenum housing extends therefrom in pneumatic communication therewith. The distribution duct and the central plenum housing each employ a plurality of windows having sliding doors to permit various air flow from within the central plenum housing and the duct for distribution throughout an interior compartment of an existing mobile home.

Abstract: An air conditioning system for a recreational vehicle is provided having a rooftop mounted air conditioning unit with an outlet for conditioned air and an inlet for return air and an air distribution system. The air distribution system includes ducts mounted between the roof and a ceiling of the recreational vehicle that are in communication with the outlet of the air conditioning unit. The air distribution system also includes registers mounted in openings of the ceiling to discharge the conditioned air from the ducts into various areas of the interior of the recreational vehicle. A ceiling grille is mounted at the ceiling below the air conditioning unit and has a return air grille and a closable register. The return air grille communicates the inlet of the air conditioning unit with the interior of the recreational vehicle.

Abstract: A duct (1) for the distribution of air conditioning from an air treating apparatus (4) into the inner environment (A) of a railway vehicle (C), comprising an inner tube (2) having radial air outlet holes (5) and an outer tube (3) containing the inner tube (2) and formed with air outlet apertures (6), facing towards the inner environment (A) of the vehicle (C) and arranged in opposite positions with respect to the radial holes (5) of the inner tube (2).

Abstract: A vehicle heating and cooling system has an air duct arrangement that makes efficient use of the available duct space. The initial duct in the system is forced to run through a body area of limited size, and so has a limited cross sectional area and consequently limited air handling capacity. It also contains side window defroster vents that should not be allowed to vent cold air. Therefore, it would be normally not be considered possible to run both hot and cold air through the duct. The arrangement provides a sealed, expansible and collapsible sleeve running through the rigid duct, which expands full size when cold air is fed into it, and which collapses almost completely when hot air is forced past it and through the rigid duct only. Therefore, both hot and cold air can be run through the same volume, and cold air is kept away from the defroster vents.

Abstract: An air conduit arrangement for ventilating or air conditioning of a vehicle interior, which is supplied with multi-layered, preformed panel elements.In this arrangement, the air conduits are bordered in the area of the panel elements by two wall sections which are glued together in a permanently resilient manner by means of a connecting flange. Of these, respectively one wall section is formed by the panel element itself and the other wall section by a separate thermoplastic preformed part disposed on the back of the panel element.

Abstract: Ventilator roof for use in motor vehicles with a roof opening in a fixed roof surface which can be closed by a cover. The cover can be swung by pivoting around a pivoting axis, at, or near its rear edge, into a ventilation position in which the cover front edge is below the roof surface, while the cover rear edge is kept at the height of the roof surface, and a ventilation gap is formed between the cover front edge and the front edge of the roof opening. At least one electrically powered blower is built into a ventilation channel leading from the ventilation gap into the vehicle interior. The blower can be powered by solar cells or the on-board vehicle power unit (battery) with safeguards to prevent use when the vehicle power unit lacks sufficient charge. In some embodiments, arrangements are also provided to enable the blower to provide ventilation of the interior space of the vehicle even when the cover is closed.

Abstract: A ventilating system for a car includes an exhaust fan, a carbon monoxide detector, and tubes for evacuating air from the interior of the car if carbon monoxide is present in it. The system can be provided also with a manual fan-operating switch, and formed as a unit which is easily mountable in a car.

Abstract: Runners extend along the junctions of the interior side panels and the headliner of the van and define plenums for conditioned air supplied by the auxiliary heat exchanger of a climate control system, the heat exchanger being mounted beneath the floor of the van. Air distribution outlets are mounted in the runners and discharge conditioned air downwardly into the interior of the van. Conditioned air is supplied to one of the plenums by a first hose extending upwardly from the heat exhanger, along the outboard side of one of the interior side panels and into one of the runners. A second hose extends upwardly generally alongside the first hose but crosses over the van between the roof and the headliner and leads into the other runner to supply conditioned air to the other plenum.