An axial fan wheel, in particular for the radiator of a motor vehicle engine, is described. The axial fan wheel includes a crown ring having a multiplicity of rotor blades, a hub having an inner ring which is connected or connectable to a drive shaft, and having, for the purpose of torque transmission, connection surfaces along an outer periphery of the hub which are connected to the inner ring and to the crown ring. The hub has through-passages between the inner ring and the outer periphery. At least one element, arranged rotationally fixedly on the axial fan wheel inside the crown ring, is designed to maintain a pressure difference in the axial direction when the axial fan wheel rotates.

An air conditioning device for vehicle has guide plates that guide a flow of air on a downstream side of a heating heat exchanger. In order to form a first path, the guide plates have a first guide that extends from a downstream wall surface of the heating heat exchanger and bends in an upward direction. Further, in order to hold a heat exchanger other than a cooling heat exchanger and the heating heat exchanger, the guide plates have a second guide that extends from an upper end part of the heating heat exchanger and bends in a downward direction. Furthermore, the guide plates have a third guide that extends from the first guide toward an end of the second guide.

A vehicle air conditioner includes a duct in which a partition member forming a first flow path and a second flow path is provided, and a heat pump circuit. In the heat pump circuit, a first indoor heat exchanger that contributes to heating is located in the first flow path or faces an outlet of the first flow path, and a second indoor heat exchanger that contributes to cooling is located in the second flow path. The duct is provided with at least one heating exhaust port for discharging air cooled in the second indoor heat exchanger to the outside of the vehicle interior in heating operation, and a cooling exhaust port for discharging air heated in the first indoor heat exchanger to the outside of the vehicle interior in cooling operation.

The invention relates to an air-conditioning system, in particular for a motor vehicle, in which a fan takes in air which flows through an evaporator and/or a heater, wherein the fan has arranged downstream of it an air-bypass channel, which contains a bypass damper and guides air past the evaporator. In the case of an air-conditioning system in which the air-mass flow which flows through the air-bypass channel and/or evaporator can be adjusted in a particularly variable manner, an air-throttle element is arranged in and/or on the air-bypass channel and/or upstream or downstream of the evaporator.

An onboard air conditioning device wherein the heating capability of air conditioning is improved, and gas is prevented from flowing into the vehicle interior even in the unlikely event that gas is produced by a battery. In this device, one end of an air flow channel is connected to an air conditioning unit for blowing temperature-regulated air into a vehicle interior, and the other end opens into the vehicle interior. The air flow channel draws air into the vehicle interior from the opening, the intake air is passed through a battery and heated by heat exchange, and the air is then sent to the air conditioning unit. The air conditioning unit sends the air from the air flow channel to a sensible heat exchanger, and after this air undergoes heat exchange with air taken in from another channel, the air is exhausted out of the vehicle interior.

An vehicle air conditioner (1A) includes a duct (3) in which a partition member (4) forming a first flow path (3A) and a second flow path (3B) is provided, and a heat pump circuit (2A). In the heat pump circuit (2A), a first indoor heat exchanger (12A) that contributes mainly to heating is located in the first flow path (3A) or faces an outlet of the first flow path (3A), and a second indoor heat exchanger (12B) that contributes mainly to cooling is located in the second flow path (3B). The ratio between an internal air and an external air within air flowing through each of the first flow path (3A) and the second flow path (3B) is adjustable. The duct (3) is provided with at least one of a heating exhaust port (35) for discharging air cooled in the second indoor heat exchanger (12B) to the outside of the vehicle interior in heating operation, and a cooling exhaust port (36) for discharging air heated in the first indoor heat exchanger (12A) to the outside of the vehicle interior in cooling operation. This configuration enables the air within the vehicle interior, the temperature of which has been adjusted by heating or cooling, to be efficiently utilized without wasting energy by discharging the air as it is to the outside.

A vehicle has a windshield, a cladding element having a front surface, which faces the windshield, a rear surface, which faces away from the windshield, and a top surface, which is arranged between the front surface and the rear surface and is angled toward the front surface and rear surface. An airflow element has a wall element, a grille element and an air inlet. At least the front surface and the top surface of the cladding element have a recess in which the wall element and the grille element are arranged. The grille element is designed to direct air from the airflow element to the windshield.

An vehicle air conditioner (1A) includes a duct (3) in which a partition member (4) forming a first flow path (3A) and a second flow path (3B) is provided, and a heat pump circuit (2A). In the heat pump circuit (2A), a first indoor heat exchanger (12A) that contributes mainly to heating is located in the first flow path (3A) or faces an outlet of the first flow path (3A), and a second indoor heat exchanger (12B) that contributes mainly to cooling is located in the second flow path (3B). The ratio between an internal air and an external air within air flowing through each of the first flow path (3A) and the second flow path (3B) is adjustable. The duct (3) is provided with at least one of a heating exhaust port (35) for discharging air cooled in the second indoor heat exchanger (12B) to the outside of the vehicle interior in heating operation, and a cooling exhaust port (36) for discharging air heated in the first indoor heat exchanger (12A) to the outside of the vehicle interior in cooling operation. This configuration enables the air within the vehicle interior, the temperature of which has been adjusted by heating or cooling, to be efficiently utilized without wasting energy by discharging the air as it is to the outside.

A vehicle air conditioning apparatus includes an air conditioning case including a case body having a case opening that is open to an air conditioning opening, and a case cover that can open and close the case opening. The case cover can be attached/detached to/from the case body via the air conditioning opening outside of the vehicle interior. An evaporator and a heater can be attached/detached to/from the case body via the air conditioning opening outside of the vehicle interior, while the case cover is removed from the case body to open the case opening.

Disclosed herein is a mixing element for two air flows intersecting in an air conditioner with a main wall of a mixing region for mixing first and second air flows. The main wall is disposed such that an inflow direction of the first and second air flows into the mixing region run longitudinally with respect to a main extension plane of the main wall. The mixing element includes first and second auxiliary walls of the mixing region, each having a main surface at opposite side edges of the main wall, and disposed such that the inflow direction of the first air flow runs past a side edge of the first auxiliary wall and transverse to the main surface of the first auxiliary wall. The inflow direction of the second air flow into the mixing region runs longitudinally with respect to the main surface of the first auxiliary wall.