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 ventilation duct (10) for a passenger interior of a motor vehicle has an inflow duct (12) for supplying air and a main guiding duct (14) that extends from the inflow duct (12) to an outlet opening (16) for guiding at least part of the air of the inflow duct (12) along a main flow direction (28) toward the outlet opening (16). At least one bypass duct (18, 40) can branch from the inflow duct (12) for discharging part of the air of the inflow duct (12). The bypass duct (18, 40) opens into the main guiding duct (14) upstream of the outlet opening (16) and introduces a flow jet (32) into the main guiding duct (14) at an angle to the main flow direction (28) for setting the flow direction of air at the outlet opening (16) without openings or louver grilles that are visible from the passenger interior.

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 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.

A technology that further improves an air conditioning function of a vehicle air conditioning duct device 1 is provided. The vehicle air conditioning duct device 1 includes: a housing 2 disposed on a lateral side of a seat and on a side opposite to a vehicle door with respect to the seat; a blowout port 3 provided at a position, in the housing 2, between a vehicle compartment floor upper surface 93 and a seat surface 94 of the seat; and a duct 4 having therein a flow path 40 for conditioned air, the duct 4 being disposed inside the housing 2 and connected to a vehicle air conditioner and the blowout port 3. The vehicle air conditioning duct device 1 is configured to blow out the conditioned air from the blowout port 3 obliquely forward with respect to the seat.

A ventilation device may include first and second supply ducts, a mixing section having a mixing duct into which the first and second supply ducts may lead, the first and second supply ducts arranged in the mixing section adjacent one another in a transverse direction, and first and second guides in the mixing section each running in the transverse direction and being located opposite one another in a longitudinal direction running transversely to the transverse direction, each guide having two guide walls running in the transverse direction and located opposite one another in a height direction running transversely to the transverse direction and longitudinal direction, at least one of the guide walls sloping away from the other guide wall at a slope angle with respect to the longitudinal direction. A valve may have a plate body and may be adjustably guided with a first guide section running in the transverse direction in the first guide and with a second guide section running in the transverse direction in the second guide. An actuator may during operation adjust the valve in the transverse direction between a first position, in which the valve fluidically separates the second supply duct from the mixing duct and opens a fluidic connection between the first supply duct and the mixing duct, and a second position, in which the valve fluidically separates the first supply duct from the mixing duct and opens a fluidic connection between the second supply duct and the mixing duct, wherein the first guide section has a first thickness running in the height direction and which is smaller than a second thickness of the second guide section running in the height direction in such a manner that both guide sections are each in contact with both guide walls of the associated guide.

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.

The present invention relates to an air conditioning system and, more particularly, to an air conditioning system comprising, within a single air conditioning case: a cool air passage in which an evaporator is installed; a warm air passage in which a condenser is installed; an installation space portion in which air conditioner parts such as a compressor are installed; and an air discharge passage for discharging, to the outside, air unnecessary for cooling and heating, thereby enabling attachment and detachment inside a vehicle, and enabling use as a portable air conditioner as well as a vehicle air conditioner. In addition, as the system is capable of cooling and heating, a separate heater core or PTC heater for heating is not required, thereby the structure is simple, and the system is capable of controlling cooling and heating modes through a single operation door, thereby allowing the system to be miniaturized.

An air conditioning damper includes a damper main body provided in a casing and closing a flow path formed in the casing by a distal end portion abutting against the inner surface of the casing. The air conditioning damper closes or opens the flow path by pivoting. The air conditioning damper has a cover portion provided on front surface sides or back surface sides of a plurality of protruding portions and extending in the width direction of the damper main body beyond a side surface of the protruding portion.