A barrier door may include a section including an outer stationary portion and an inner movable portion disposed within the outer stationary portion, an actuator, and a controller. The actuator may move the inner movable portion between different positions to control flow of air between a protective enclosure and a volume outside of the protective enclosure. The controller may monitor one or more operating characteristics of the actuator and may modify an operational status of the actuator to control the flow of the air between the protective enclosure and the volume outside of the protective enclosure based at least in part on the one or more operating characteristics.

An air blowing device has a first blowing portion, a duct, and an airflow causing member. The first blowing portion has a guide surface and is provided with a first blowing outlet that blows air from a blower unit into a vehicle compartment. The airflow causing member defines at least one of a first passage and a second passage located on one side and an other side of the airflow causing member in a front-rear direction of a vehicle respectively in the duct. The airflow causing member sets a first condition in which a high-velocity airflow flows in the first passage and a low-velocity airflow flows in the second passage by decreasing a sectional area of the first passage to be smaller than a sectional area of the second passage. The high-velocity airflow flows along the guide surface and is blown into the vehicle compartment.

An air conditioning device for a vehicle has an air-conditioning case, a heater core, a first air mix door, a second air mix door, and an actuator. The air-conditioning case therein has a first air passage and a second air passage. The first air mix door and the second air mix door are arranged in the first air passage and the second air passage respectively, and adjust a ratio between a flow rate of air passing through the heater core and a flow rate of air bypassing the heater core by an opening/closing operation. The actuator interlocks the opening/closing operations of the first air mix door and the second air mix door such that opening degrees of the first air mix door and the second air mix door are different from each other.

A heating, ventilation, and air-conditioning (HVAC) assembly for supplying different mixed air flows simultaneously is disclosed. The assembly includes first blend kinematics configured for allowing passage of a first air flow, second blend kinematics configured for allowing passage of a second air flow, obtaining means configured to obtain a temperature command indicating a target temperature for two different locations outside the HVAC assembly, identifying means configured to identify a pattern for the first blend kinematics and the second blend kinematics for modifying the first air flow and the second air flow based on the temperature command, and coordinating means configured to coordinate each of the first blend kinematics and the second blend kinematics simultaneously.

A heating, ventilating, and air conditioning (HVAC) apparatus for a vehicle includes: a case, which is configured to communicate with the outside of the vehicle and which includes a discharge flow path connected to an interior of the vehicle; an outside air inlet, which is located in the case and into which air is introduced from the outside of the vehicle; an inside air inlet configured to communicate with the interior of the vehicle; a filter unit located adjacent to the discharge flow path; an inside/outside air switching door provided adjacent to the outside air inlet and the inside air inlet and configured to selectively open the outside air inlet and the inside air inlet; and an auxiliary switching door, which includes a depression located at a lower end of the filter unit and which is selectively opened so as to allow the depression and an outdoor outlet to be fluidly connected.

An air conditioning case configuring a vehicular air conditioning device is configured from first through third case sections capable of being divided in a width direction, the third case section in a center in the width direction and the first case section being connected via a first dividing section, and the third case section and the second case section being connected via a second dividing section. Moreover, the first and second dividing sections are formed in such a manner that their lower section sides facing a lower passage divided in a space between an evaporator and a heating unit are positioned on outer sides in the width direction with respect to an upper section of the air conditioning case provided with a vent blast port blasting air into a vehicle interior.

A ventilation device may include a housing, a fluid channel system, a heat exchanger, and a slider arrangement. The slider arrangement may include at least one first slider and at least one second slider arranged within the fluid channel system upstream of the heat exchanger and downstream of the heat exchanger respectively. The first and second slider may be guidable transversely with respect to at least one fluid flow. The first and second slider may each be actuatable. At least one of a volume flow and a mass flow of at least one fluid flow may be at least one of controllable and regulatable via actuation of the first slider. At least one of a predetermined fluid temperature and a predeterminable fluid temperature of a mixed fluid may be settable and at least two fluids may be mixable via actuation of the second slider.

The invention relates to a heating, ventilation and/or air-conditioning device (1) for a motor vehicle, comprising a housing (2) defining a flow channel (3) for an air flow, in which are arranged a first heat exchanger (4), a second heat exchanger (6), the first (4) and second (6) heat exchangers being arranged in substantially orthogonal planes, a bypass path (28) of the second heat exchanger (6) and at least one air outlet duct (12,14,16), each air outlet duct (12,14,16) being configured to guide the air flow in particular towards different regions of a vehicle passenger compartment. According to the invention, a mixing flap (30) comprising a sliding door is arranged in the flow channel (3) so as to be able to close the bypass path (28) and/or the second heat exchanger (6), and a second dispenser flap (22) comprising a sliding door is arranged so as to be able to at least partially close a first of said air outlet ducts (12,14,16). The invention also relates to a motor vehicle comprising such a device.

A vehicle HVAC system includes: a casing to direct air from outdoors into the interior of a passenger compartment, an air blower blowing the air into the casing, an evaporator disposed in the casing, a heater core disposed downstream of the evaporator, and front and rear seat side temperature doors disposed between the evaporator and the heater core. A method for controlling the HVAC system includes: determining, by a controller, whether a required temperature for cooling rear seats is set to be lower than a required temperature for cooling front seats after an outdoor condition of a vehicle meets a reference high temperature condition; and lowering, by the controller, a target temperature of the evaporator based on the set required temperature for cooling the rear seats when the required temperature for cooling the rear seats is set to be lower than the required temperature for cooling the front seats.

A HVAC system (100) includes a housing (10) with at least one first inlet (20) and at least one second inlet (30) formed thereon, at least one first door (20a), at least one second door (30a) and an intermediate door (40). The first inlet (20) and the second inlet (30) is for ingress of a first fluid stream and a second fluid stream inside the housing (10). The first door (20a) and the second door (30a) moves with respect to the first inlet (20) and the second inlet (30) respectively to define an open configuration, a closed configuration and a partially open configuration thereof. The intermediate door (40) is disposed between the first inlet (20) and the second inlet (30) and moves between a deployed and an un-deployed configuration to respectively disrupt and allow fluid flow there across. The intermediate door (40) is a sliding door.