An air handling system for a heating, ventilating, and air conditioning system comprises a housing including a sealing surface, a door wall disposed in the housing having a perimeter, and a sealing element disposed about the perimeter of the door wall. The sealing element includes a base, a stem, and a tip. The base is coupled to the perimeter of the door wall, the stem is formed between the base and the tip, and the tip is configured to selectively engage the sealing surface of the housing. A plurality of dentil features project from the stem of the sealing element and is arranged in a linear array extending parallel to the perimeter of the door wall. The array of the dentil features is configured to reduce an incidence of whistling when a flow of air passes by the tip of the sealing element.

A partition seal portion of a second rotary door is located between an outer door portion and a partition rib. The partition seal member is pressed against a rib tip portion in a door radial direction and moves slidably while being in contact with the rib tip portion in conjunction with a rotation of the second rotary door. Accordingly, an increase of a width in a door axial direction required for a sealing configuration can be suppressed. Therefore, a seal between a side face outlet and a center face outlet can be secured while being preventing a length of a face outlet in the door axial direction from being short.

An exemplary flap arrangement may include a housing and a flap arranged in the housing for regulating an air flow in the housing. The flap may have a flap main body with a front side arranged on an air inflow side in an operating state. The flap arrangement may also include an elastic sealing lip with a sealing surface provided on the flap main body. The flap arrangement may further include a rib arranged in the region of the sealing lip and outside the sealing surface. The rib may project substantially vertically from the front side of the flap main body, and may serve for air flow rate reduction during opening of the flap. The sealing lip and the rib may be formed in one piece.

A heating, ventilation, and air conditioning (HVAC) case, which defines a defrost outlet and a demist outlet. A single airflow control door is movable to control airflow through each one of the defrost outlet and the demist outlet.

An air handling system for a heating, ventilation, and air conditioning system of a motor vehicle includes a conduit configured to convey air from the air handling system to a vent of the air handling system. A control door is rotatably disposed in the conduit. The control door selectively rotates between a first position and a second position. The first position blocks passage of the air flowing through the conduit. The second position blocks passage of the air flowing through a first portion of the conduit and allows the air to flow through a second portion of the conduit. A control feature is disposed in the second portion of the conduit to control at least one of a volumetric flow rate and a pressure of the air flowing through the second portion.

A temperature door for an air handling system of a heating, ventilating, and air conditioning system for a vehicle includes a first sealing surface and a second sealing surface spaced apart from the first sealing surface. A third surface extends between the first sealing surface and the second sealing surface. A plurality of cells is formed on the third surface.

An air handling system for a heating, ventilation, and air conditioning system of a motor vehicle includes a conduit configured to convey air from the air handling system to a vent of the air handling system. A control door is rotatably disposed in the conduit. The control door selectively rotates between a first position and a second position. The first position blocks passage of the air flowing through the conduit. The second position blocks passage of the air flowing through a first portion of the conduit and allows the air to flow through a second portion of the conduit. A control feature is disposed in the second portion of the conduit to control at least one of a volumetric flow rate and a pressure of the air flowing through the second portion.

The present invention relates to an air conditioner for a vehicle, which includes an air-conditioning case (200), and at least one door (100) mounted to be opened and closed at a predetermined position, wherein the door (100) is formed integrally with an arm pivot (140), and the arm pivot (140) includes a pin part, and ribs formed integrally with both sides of the pin part to reinforce rigidity of the pin part and offset noise. The air conditioner further includes distortion preventing parts formed on a rotary shaft to be dented and to be crossed to each other, thereby reducing a transformation rate of the door and securing accuracy of the pin part.

A heating, ventilation, and air conditioning unit includes a case, a door, an actuator, and a holding member. The case has a first wall, a second wall, and a third wall. The first wall and the second wall are connected by the third wall to face each other. The door is rotatably disposed inside the case through a rotational axis. The door rotates about the rotational axis to selectively open and close an air outlet. The actuator rotates the door between a closed position where the door closes the air outlet and an open position where the door opens the air outlet. The holding member is disposed in the second wall and holds the door when the door rotates to the open position by engaging the door.

An air-conditioning unit of a vehicle for air-conditioning a vehicle interior may include a unit outlet for discharging air into the vehicle interior, an outside-air duct for an intake of outside air, and an air recirculation duct for recirculation of inside air from the vehicle interior. The air-conditioning unit may also include an outside-air shut-off element arranged in the outside-air duct, which in a closed position blocks a flow of outside air through the outside-air duct, and a recirculated-air shut-off element arranged in the air recirculation duct, which in a closed position blocks a flow of inside air through the air recirculation duct. The air-conditioning unit may further include a sensor device for detecting a property of air. On at least one duct of the outside-air duct and the recirculation duct, a bypass may be arranged which bypasses an associated shut-off element and is fluidically connected to the sensor device.