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 cab for a construction machine includes; an operator seat including a seat base and a backrest; a control box disposed along a lateral side of the operator seat; an air conditioner main body for cooling air; and a duct disposed behind the operator sea for guiding a cooling air generated in the air conditioner main body. The duct has a blowing port provided at such a position as to allow the cooling air to flow frontward along at least one of a lateral side of the seat base and a lateral side of a lower portion of the backrest and along an inner surface of the control box.

An air flow circulation structure for a vehicle includes a front shutter that opens or closes an outside air intake port, a fan and a duct member. The fan is configured to cause air to flow in a direction oriented from the outside air intake port through a heat exchanger toward an engine compartment when the front shutter is in an open state, and to cause the air to flow in a direction oriented from the engine compartment through the heat exchanger toward the outside air intake port when the front shutter is in a closed state. The duct member is configured to guide the air that is changed in direction by blowing from the fan and colliding with the front shutter to a heat source of the vehicle, when the front shutter is in the closed state.

An air conditioning device includes a casing that provides multiple air passages, a blower fan that suctions an air from the multiple air passages and blows out the air in the casing, a suction side partitioning member that is disposed on a suction side of the blower fan in the casing and separates air flows from the multiple air passages from each other, and a blowing side partitioning member that is disposed on a blowing side of the blower fan in the casing and separates the air flows from the multiple air passages from each other. The suction side partitioning member and the blowing side partitioning member are disposed so that a relative position of the blowing side partitioning member to the suction side partitioning member is deviated in a rotation direction of the blower fan.

A heating, ventilation, and air conditioning (HVAC) airflow distribution module is integrated with a driver-focus mode operation mechanism for a vehicle. The module utilizes: a driver face door to control airflow through driver face outlets; a passenger face door sub assembly to control airflow through a passenger center face outlet and a passenger side face outlet independently; a foot door sub assembly including a passenger front foot door and a main foot door to control airflow through a passenger front foot outlet independently from driver front and rear foot outlets and a passenger rear foot outlet; and a separator to separate airflow through passenger front and rear foot outlets. The present disclosure enables an HVAC airflow distribution module to focus airflow on the driver's seat and maintain the vehicle recirculation at a comfortable level when no passenger is present.

Disclosed therein is a dual zone type air conditioner for a vehicle, which includes: an air volume control door mounted between a blower and an evaporator for controlling the degree of opening of first and second passageways so as to control the volume of air blown to the inside of an air-conditioning case; and bypass passageways disposed in the air volume control door to supply a predetermined air volume to a closed passageway even though the air volume control door is at the location to close the first passageway or the second passageway, thereby preventing a sudden change in air volume by widening a control interval of the air volume control door because the first-stage air volume can be realized even though the air volume control door closes one of the air passageways, and reducing a whistle noise by securing a predetermined cross-sectional area of the air passageway through the bypass passageways even though the cross-sectional area of the air passageway gets narrower while the air volume control door closes one of the air passageways.

A heating, ventilation, and air conditioning (HVAC) airflow distribution module with an outlet closing mechanism for a vehicle including a driver face airflow outlet defined by an HVAC module. A passenger face airflow outlet defined by the HVAC module having a center portion and a side portion. An adaptor including a door driving mechanism to control a telescoping door sub-assembly, which is mounted at the passenger face airflow outlet and is movable between a retracted position at which the telescoping door sub-assembly does not obstruct the airflow through the passenger face airflow outlet by being packaged away from outlets, and any one of a plurality of extended positions at which the telescoping door sub-assembly obstructs the side portion or both the side and center portions of the passenger face airflow outlet at different blocking levels when no passenger is present to save energy, improve fuel economy, and/or increase battery life.

An individual air conditioning apparatus for a vehicle includes: a driver's seat air conditioning module and a passenger seat air conditioning module sequentially provided with an evaporation core and a heater core; a first channel that passes through the evaporation core and is connected to an indoor outlet; a second channel that passes through the evaporation core and the heater core and is connected to the indoor outlet; and a temperature control door that opens and closes the first channel and the second channel.

A method of controlling an apparatus of multi-air mode for an air conditioner of a vehicle includes turning on power to the air conditioner, by a driver using an air conditioner operation unit provided in the vehicle. The method includes: determining, by a controller, whether a driver has turned on a multi-air mode through the air conditioner operation unit; in response to determining that the multi-air mode is turned on, operating, by the controller, the air conditioner in the multi-air mode; determining, by the controller, whether an intensity of air discharged from the air conditioner is greater than or equal to a first stage; and in response to determining that the intensity of air discharged from the air conditioner is greater than or equal to the first stage, automatically adjusting, by the controller, the intensity of the air to a second stage less than the first stage.

A heating, ventilation, and air conditioning (HVAC) airflow distribution module including a passenger side face outlet and a passenger center face outlet both defined by the module. A passenger face door sub assembly within the module includes a passenger side face door (outer portion) at the passenger side face outlet and movable to control airflow through the passenger side face outlet. A passenger center face door (inner portion) is at the passenger center face outlet and is movable to control airflow through the passenger center face outlet. The passenger side face door and the passenger center face door are movable independent of one another to independently control airflow through the passenger side face outlet and the passenger center face outlet.