An apparatus for controlling a direction of discharged air in a vehicle air conditioning system can control a direction of air discharged to a vehicle interior from the vehicle air conditioning system. The apparatus includes a plurality of vent nozzles connected to an air discharge port for discharging air in the vehicle air conditioning system, so as to discharge air to different regions in a vehicle interior space, a plurality of discharge ducts connected between respective different sections of the air discharge port and the respective vent nozzles, and an opening and closing door configured to adjust an opening degree of the air discharge port, for selectively opening the different sections of the air discharge port.

A ventilation controlling apparatus for feeding windshield defrost outlets and side window demist outlets in motor vehicles with one or more air passages and respective doors for each outlet. The apparatus supports a mode in which the demist door opens up to a predefined angle without the defrost door opening, too, with the predefined angle depending on the design of a cam attached to the demist door and a pin engaged with that cam and attached to the defrost door.

In a vehicle air conditioning apparatus in which a plurality of air mixing dampers that are driven independently of each other have a drive shaft having a double-shaft structure. A hollow drive shaft of one damper is penetrated by a solid drive shaft of another damper. A first shaft-center immobilizing mechanism that secures a shaft center of the hollow drive shaft is provided between a side surface of the unit casing, to which the drive shaft having the double-shaft structure is supported in a freely rotatable manner. And a gear provided at a shaft end of the hollow drive shaft.

A system and method for air distribution in an air conditioning system of a motor vehicle, the system including flow paths with air outlets toward the windshield, in the dashboard, and toward the footwell, along with a central gear mechanism having an adjustment element and damper controls for air dampers, for the purpose of opening and closing the air outlets. The adjustment element is arranged to be steplessly movable between a first end position and a second end position. With the system, in particular by moving the adjustment element, the settings windshield damper open, footwell damper open and dashboard damper open may be selected. The central gear mechanism having the adjustment element and the damper controls is configured such that the windshield damper open setting may be selected at either of the end positions of the adjustment element.

A motor vehicle ventilation apparatus is provided including a distributor housing having at least two air ducts leading from the distributor housing. Through these two outgoing air ducts, an air mass flow that is fed to the housing or produced inside the housing is able to be distributed to at least two air outlets arranged at a distance from one another in an interior space of a motor vehicle. The air ducts leading from the distributor housing are each in flow communication with at least one of the air outlets. In addition, at least one servo unit is movable by a drive unit arranged adjacent to at least one of the air ducts in the distributor housing.

Provided is a damper of an air vent for a vehicle, in which an operating member and a pad member are assembled with a structure in which a coupling protrusion of the operating member is inserted into a coupling hole of the pad member. As dimensions of the damper become accurate, a gap is not formed, thereby preventing air leakage. Moreover, due to no need for overlap of the pad member, the operating force of the damper is reduced and becomes uniform, and friction noise of the pad member in operation is prevented. Furthermore, an assembly method is simple, facilitating automation and expecting productivity improvement.

An air vent for a vehicle includes a housing provided with an air outlet, a front wing module mounted within the housing and configured to adjust air discharged through the air outlet in left and right directions, a rear wing module mounted within the housing by being spaced apart from the front wing module and configured to adjust air discharged through the air outlet in up and down directions, and a manipulation module connected to the front wing module and to the rear wing module from outside the housing by being spaced apart from the air outlet, and configured to adjust air discharged through the air outlet in left and right or up and down directions.

An air-handling system for a heating, ventilation, and air conditioning system comprises a main housing, one or more selectively positionable doors, and a control mechanism. At least one of the doors is disposed in a mixing and conditioning section of the main housing to control a temperature of a flow of air to a delivery section of the main housing. Additionally, at least one of the doors is disposed in the delivery section of the main housing to control a flow of conditioned air through a plurality of conduits. The control mechanism includes one or more cam gears configured to selectively control each of the doors to provide temperature control for various modes of operation of the air-handling system. One of the cam gears includes a cam track having one or more radially inward and/or radially outward segments to mitigate mechanical hysteresis of the doors.