An air conditioning system of a vehicle having an internal combustion engine includes a condenser configured to receive refrigerant output by an electric compressor and transfer heat from the refrigerant within the condenser to air passing the condenser. A first evaporator is configured to receive refrigerant from the condenser when a first control valve is open and transfer heat from air passing the first evaporator to the refrigerant within the first evaporator. A first blower is configured to blow air across the first evaporator to a first section of a cabin of the vehicle. A second evaporator is configured to receive refrigerant from the condenser when a second control valve is open and transfer heat from air passing the second evaporator to the refrigerant within the second evaporator. A second blower is configured to blow air across the second evaporator to a second section of the cabin of the vehicle.

An air-handling system for a heating, ventilation, and air conditioning system of a passenger vehicle is provided that includes a heated air conduit configured to receive a portion of a heated air flow from a heat exchanger in a conditioning section and directly deliver the portion of the heated air flow to a vent in the passenger vehicle. The portion of the heated air flow is separate from an unconditioned air flow, a conditioned air flow, and a remainder of the heated air flow, each of which run from the conditioning section to a common mixing section forming an output air flow. The delivery section distributes the output air flow to a plurality of conduits leading to a plurality of vents in the passenger vehicle.

An air-handling system for a motor vehicle includes a conditioning section having an evaporator core and a heater core. The conditioning section is separated into a primary zone and a secondary zone at a position disposed upstream of the heater core. The heater core extends partially into each of the primary zone and the secondary zone. A primary door assembly is disposed within the conditioning section at a position upstream of the heater core and a secondary door assembly is disposed within the secondary zone of the conditioning section at a position downstream of the primary door and upstream of the heater core.

An air conditioning system of a vehicle having an internal combustion engine includes a condenser configured to receive refrigerant output by an electric compressor and transfer heat from the refrigerant within the condenser to air passing the condenser. A first evaporator is configured to receive refrigerant from the condenser when a first control valve is open and transfer heat from air passing the first evaporator to the refrigerant within the first evaporator. A first blower is configured to blow air across the first evaporator to a first section of a cabin of the vehicle. A second evaporator is configured to receive refrigerant from the condenser when a second control valve is open and transfer heat from air passing the second evaporator to the refrigerant within the second evaporator. A second blower is configured to blow air across the second evaporator to a second section of the cabin of the vehicle.

An object is to provide an air conditioning unit and a vehicular air conditioning device that can efficiently distribute conditioned air while preventing an increase in the dimensions of a damper. The air conditioning unit includes a main duct (D1), a subduct (D4) branching from the main duct (D1) and guiding air to a foot outlet port (24), and a second switching damper (30) disposed in the subduct (D4) facing the main duct (D1). The second switching damper (30) includes a rotating shaft (31) and a damper body (32) including a guiding shroud (33) extending in the circumferential direction around the rotating shaft (31). An end flange (34A) at one circumferential end of the damper body (32) protrudes into the main duct (D1) as a result of rotation of the second switching damper (30) around the rotating shaft (31). A radial length (R1) of an end flange (34A) is greater than a radial length (R2) of an end flange (34B) at the other circumferential end of the guiding shroud (33).

The invention relates to a heating, ventilation and/or air-conditioning device (10) for a motor vehicle, which device comprises a housing (26), a cold air region (84), a hot air region (86), an evaporator (36) which is configured to provide a cold air stream (50) in the cold air region (84), and a heating element (34) which is configured to provide a hot air stream (48) in the hot air region (86). Furthermore, the device (10) has a one-piece cross-flow deflection device (38), which is covered by the housing (26) and comprises a mixing device (40) and a cover (42), wherein the mixing device (40) has a plurality of mixing chambers (52), each of which is provided for mixing a part of the cold air stream (50) and a part of the hot air stream (48). The cover (42) here separates the cold air region (84) and the hot air region (86) from each other at least in portions. Furthermore, the cover (42) has a fixing device (74) which is provided for fixing the heating element (34).

An air conditioning system of a vehicle having an internal combustion engine includes a condenser configured to receive refrigerant output by an electric compressor and transfer heat from the refrigerant within the condenser to air passing the condenser. A first evaporator is configured to receive refrigerant from the condenser when a first control valve is open and transfer heat from air passing the first evaporator to the refrigerant within the first evaporator. A first blower is configured to blow air across the first evaporator to a first section of a cabin of the vehicle. A second evaporator is configured to receive refrigerant from the condenser when a second control valve is open and transfer heat from air passing the second evaporator to the refrigerant within the second evaporator. A second blower is configured to blow air across the second evaporator to a second section of the cabin of the vehicle.

The invention is a device, system and method of use for cooling the temperature in the passenger compartment of a vehicle without the need for a power source or moving parts, thus allowing the device to operate when the vehicle engine is turned off.

An air conditioner includes a blower unit, a blowing duct, and an air switching portion. The blower unit is configured to blow cold air and warm air simultaneously. The blowing duct includes a target blowing portion through which air is sent to a space that is an air-conditioning target, and a non-target blowing portion through which the air is sent to a space that is not an air-conditioning target. The air switching portion is configured to switch between a cold air supply state in which the cold air is sent to the target blowing portion while the warm air is sent to the non-target blowing portion, and a warm air supply state in which the warm air is sent to the target blowing portion while the cold air is sent to the non-target blowing portion.

A multi-zone air conditioner system for large vehicles may include an air conditioning device configured to partition an internal of a vehicle into a plurality of zones to independently cool each zone, a detecting device configured to include a room temperature detector for detecting a room temperature of each zone and a photo detector for detecting an amount of solar radiation, an input device configured to switch an operating state of the air conditioning device to an automatic mode or a manual mode, and a control device configured to generate a control signal for operating the air conditioning device based on a signal transmitted from the detecting device and the input device.