Abstract: An air filtration system for a mobile unit having a vent fan and a kit for forming the air filtration system. The air filtration system includes a rigid outer cover made, a filter box, and a vent fan installed on a roof of the mobile unit. An air inlet passageway is formed in the rigid outer cover so that the vent fan may draw outside air through the filter box and into an interior space of the mobile unit. The air inlet passageway may include a louver for allowing air entry while protecting the filter box from rainwater. A base plate has a central opening that is positionable around a vent fan housing and securable to a vent fan flange to form a flat surface upon which to receive the filter box and the rigid outer cover.

Abstract: The skylight vent cover is installed immediately beneath the existing skylight in the ceiling of a structure, e.g., motorhomes, cabin boats, etc. The vent cover includes one or more opaque panels that are spaced away from the overlying structure to substantially block light passage while allowing airflow between the panel(s) and overlying structure. Some embodiments have a single planar or non-planar panel. Other embodiments have a plurality of tiered panels. The upper surface(s) of the panel(s) can have a reflective coating thereon to reflect light and heat from the skylight and vent. Various attachments can be provided, e.g., mating hook and loop material, magnets, hinge and latch, etc. In all embodiments, the panel is spaced away from the overlying ceiling structure, and in the case of multiple panel embodiments, the panels are spaced apart from one another to provide good ventilation and airflow therebetween.

Abstract: In order to optimize the failure safety of electrical and electronic components located in an engine compartment of a rail vehicle, which additionally comprises at least one driver's cab, the rail vehicle is operated with an air conditioning system, which is provided to generate overpressure in the engine compartment and to control the climate of the at least one driver's cab. The air conditioning system includes a first air guidance system to introduce fresh air into the at least one driver's cab and a second air guidance system to transmit at least one part of the fresh air introduced into the at least one driver's cab into the engine compartment.

Abstract: A system and method for controlling air flow through a passenger cabin and battery pack of a vehicle having a battery module is disclosed. A HVAC controller communicates with a battery pack controller to assure that air flow from the passenger cabin through the battery pack, and either out to atmosphere or returned to the passenger cabin, is coordinated to obtain desirable passenger cabin heating/cooling and battery cooling.

Abstract: An air control device suitable for use in a heating and/or air-conditioning system comprises an air control member having a portion capable of selectively blocking the flow of air in an air passageway, a shaft member connected to the selective air blocking portion and having an axis about which the selective air blocking portion rotates, and a portion located on at least one end of the shaft that comprises a mechanism for inter-engaging with an actuating device for rotation of the shaft member; wherein the shaft end has at least first and second different mechanical configurations, wherein each configuration is capable of selectively interacting with a different type of actuation device.

Abstract: In a left and right temperature independent control-type air conditioning unit for a vehicle, a case is constructed of a first case and a second case. An air passage in the case is divided into a first air passage through which air flows toward a right region of a compartment and a second air passage through which air flows toward a left region of the compartment by a partition wall. The first and second cases are connected by engaging a first case end surfaces with a second case end surface. Pin contact portions are formed on the first and second cases adjacent to the case end surface. The pin contact portions are disposed to oppose each other between the first case and the second case. The partition wall is fixed by interposing its periphery between the pin contact portions of the first and the second cases.

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.