A heating, ventilation and/or air conditioning device is disclosed. The device includes at least one air inlet, at least one air outlet which is able to direct the flow of air to a front area of the passenger compartment, and a second air outlet which is able to direct the flow of air to a rear area of the passenger compartment. The device also includes one first heat exchanger and one second heat exchanger positioned downstream from the first heat exchanger relative to a direction of circulation of the flow of air within the device. The device also includes one first chamber for mixing the flow of air which is connected fluidically to the first air outlet and at least one second chamber for mixing the flow of air which is connected fluidically to the second air outlet.

In a structure in which a door and a case sealing part are in surface contact with each other at the downstream side in an air flow direction, an air conditioner for a vehicle that enabling easier assembly of the door is disclosed. The air conditioner includes: an air conditioning case in which an air passage and a plurality of air discharge ports are formed; a cooling heat exchanger and a heating heat exchanger sequentially arranged in the air passage of the air conditioning case in an airflow direction; and a sliding-type door for adjusting the opening degree of the air passage, wherein a rail part is formed in the air conditioning case to guide the sliding of the door, and a separate assembly is coupled to the air conditioning case and is in close contact with the door inserted into the rail part to form a sealing surface.

Disclosed is an air conditioner for a vehicle which has an improved shaft structure to enhance temperature controllability and adjust an air discharge volume, thereby improving airflow distribution. The air conditioner includes: an air conditioning case in which an air passage and a plurality of air discharge ports are formed; a cooling heat exchanger and a heating heat exchanger sequentially arranged in the air passage of the air conditioning case in an air flow direction; and a door adjusting the opening degree of the air discharge ports, wherein the door is formed in a sliding type and includes a shaft, a gear part, and a plate part which engages with the gear part to open and close the air discharge ports, and a guide part guiding the air flow direction is provided on the shaft.

Air conditioning unit for a motor vehicle and climate control system with the air conditioning unit having a casing with at least one first air inlet for the intake of fresh ambient air and one second air inlet for the intake of circulating air from a passenger compartment, as well as an air guiding device in each case for independently varying flow cross sections of the air inlets, the air guiding device in each case is designed as an air flap which is arranged movably mounted between two end positions, a bypass flow duct with a ram pressure air guiding device is formed for the first air inlet, and the ram pressure air guiding device is arranged as an air flap movably mounted between two end positions and is designed in such a way as to fully close the bypass flow duct in an end position.

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.

A heating, ventilating and/or air-conditioning device for a motor vehicle, comprising a housing that defines a flow channel having at least a first duct for the flow of a first stream of air, defining a first air outlet, at least a second duct for the flow of a second stream of air, defining a second air outlet, at least one mixing chamber communicating with the respective air outlets of said ducts, and at least one mixing flap comprising a first sliding door arranged so as to control the apportionment of the first stream of air and second stream of air in said at least one mixing chamber, said at least one mixing flap being arranged so as to be movable between a first end position, in which it closes the first duct, and a second end position, in which it closes the second duct. According to the invention, said first sliding door has at least one recess, so as to fluidically connect the first air duct and the second air duct, when said at least one mixing flap is arranged in an intermediate position between the first and the second end position.

A barrier door for a protective enclosure is disclosed herein. The barrier door includes a hinge structure configured for installation within an interior volume of a vehicle such that the barrier door can rotate through an aisle of the vehicle, a lower section, and an upper section including a stationary portion and a movable portion disposed adjacent to the stationary portion, wherein the lower section and upper section are configured to separate an operator position within the interior volume of the vehicle from a passenger area of the interior volume of the vehicle, and a lift device configured to move the inner movable portion between a lowered position in which the inner movable portion is at least partially withdrawn into the lower section to form an opening in the upper section and a raised position in which the inner movable portion is extended to close the opening.