A parking cooler which is capable of battery powered operation during engine off operation. The parking cooler or air conditioning system may vary in cooling capacities to maximize cooling or maximize battery life. The parking cooler includes one or more additional cooling mechanicals within either of two housings to accommodate variation of cooling capacity.

A modular air grill is taught having a removable return register and a removable supply register. The supply register may be replaced with a blank when adequate cooling or rapid cooling has occurred and the cooling through the ducts is desired rather than immediately adjacent to an air conditioning unit.

A work vehicle that facilitates attachment of an air conditioner main body, the work vehicle including an air conditioner main body arrangement part for arranging therein an air conditioner main body. The air conditioner main body arrangement part is provided in a ceiling part of a cabin covering a driver unit of the work vehicle so that the air conditioner main body arrangement part protrudes rearward from a pair of left and right rear strut pieces of the cabin. The air conditioner main body arrangement part includes a main body support member protruding rearward, which is provided to an upper rear beam piece laterally bridged between upper end portions of the pair of left and right rear strut pieces. The main body support member has support rigidity to support the air conditioner main body from below so that the air conditioner main body is mounted thereon from above.

Novelty customized themed covers and shrouds for rooftop AC units on recreational vehicles which may have forward sloping aerodynamic front ends, two sides having air vents as necessary and a rear end having air exhaust openings. The themes may include without limitation various sport themes, such as racing, football, baseball or other sports, as well as advertising vehicles or any other desired theme.

An air treatment system is described, for a closable room of a vehicle, comprising: an air conditioning device provided with a fan and connectable to the room; an inlet opening for outside air, connected to the air conditioning device; a filtration device for filtering the outside air entering from the inlet opening; a recirculation port; a valve assembly provided with a shutter member, interposed between the inlet opening, the recirculation port and the air conditioning device and movable between a plurality of operating positions, in which it varies the shares of air coming from the inlet opening and the recirculation port; and a control unit to adjust the operating position of the shutter member so as to control the shares of air being drawn from the inlet opening and from the recirculation port and to maintain a predetermined value of overpressure in the room with respect to the outside.

A cab for a machine. The machine has a longitudinal axis extending between a front, and a back opposite to the front. The cab includes a roof and a floor extending generally about the longitudinal axis. A vertical seat index axis extends through intermediate portions of the roof and the floor and is associated with a position of the operator disposed to face the front. The vertical seat index axis intersects perpendicular to the longitudinal axis at an intersection. A plurality of support members are disposed between the roof and the floor, including a rear support member disposed at a rear end of the cab. At least an upper portion of the rear support member is positioned at an angle relative to the intersection at an angle along the longitudinal axis and defines a rear view opening to facilitate rear end visibility of the machine.

An air-conditioning device for a vehicle includes a first evaporator and a second evaporator provided on a vehicle roof in a longitudinal direction of the vehicle. A refrigerant distributor is provided at a portion at which a refrigerant is supplied to the first evaporator and the second evaporator. The refrigerant distributor is operated to introduce the refrigerant selectively into the first evaporator and the second evaporator.

An axial-flow blower arrangement for the condenser (28) of a roof-mounted air conditioning installation including two evaporator units (3, 4) and a condenser unit (2) arranged between them comprises at least two blower modules (1), each of which has a box-shaped downwardly open hood (10) which has a cover wall (12) and walls (14, 15, 16, 17) which in the mounted condition extend downwardly from the cover wall and which together with the cover wall enclose an air suction chamber (26), out of which an axial-flow blower (23) mounted under the cover wall sucks air and discharges it into the atmosphere through an air outlet opening (20). The walls of the air suction chamber of each blower module extend in the mounted condition so far downwardly to the horizontally lying condenser (28) which completely covers over the open underside of the hood (10) and so terminate with the condenser that under the action of the axial-flow blower only air which has previously passed through the condenser can pass into the air suction chamber of the blower module.

A roof (102) for work vehicle comprises a molded roof portion (200) formed by rotational molding, the molded roof portion (200) having a first surface (202) that is generally planar and faces upward, and a second surface (300) molded integral with the first surface (202), wherein the second surface (300) faces downward and has a plurality of integrally molded troughs (308, 310) that extend upward into the second surface (300).

A renewal method of an air-conditioning unit for vehicle in which an air-conditioning unit using a former refrigerant disposed in a frame mounted on a vehicle is renewed to an air-conditioning unit using an alternative refrigerant, the renewal method including a removal step of: a removing the existing air-conditioning unit from the frame; an assembly step of disposing the new air-conditioning unit, which is configured so as to be capable of fitting in the frame, in the frame; and a filling step of filling the alternative refrigerant into the new air-conditioning unit. The circulating amount of refrigerant in the new air-conditioning unit is increased so as to be larger than that in the previous air-conditioning unit, and the heat exchange capacity per unit volume of each of the indoor heat exchanger and the outdoor heat exchanger is made larger than that before the renewal.