An air-heating blower device for a passenger compartment of a motor vehicle comprising a body with at least one inlet opening at least one outlet opening an electrically driven axial fan rotatably mounted around its axis within the body. The fan is associated to an electric motor (M) with toroidal geometry, having an annular rotor which is rotatable within an annular stator and defining a central opening inside thereof, said fan (F) having one or more blades (B) which are carried by the rotor and each blade extending into said central opening towards a free end of the blade which terminates at a distance from the central axis of the fan, and in that the annular body of the rotor and/or the annular body of the stator define a guide tube for the airflow activated by the fan (F) over the resistive electric heater (H).

A HVAC apparatus for a vehicle having a fan unit with at least one impeller driven by a motor; a heat exchanger unit forming an air duct receiving air from the fan unit, wherein the heat exchanger unit comprises a heat exchanger having at least two different cooling regions with different working temperatures through which received air flows consecutively; and wherein the different working temperatures are controlled by a temperature control unit; and a plate-shaped housing accommodating the fan unit and the heat exchanger unit.

A vehicle cooling system for a vehicle defining a cab comprises a heat source and an evaporative cooling system. The heat source is supported by the vehicle. The evaporative cooling system is configured to evaporate water using heat from the heat source to form a supply of cool air for cooling the cab.

There is provided an HVAC system and method of use thereof for operation with a vehicle, the HVAC system comprising: a frame having a front portion and a rear portion, one or more manually releasable clamps configured to releasably couple the frame to a chassis of the vehicle, and system components secured to the frame. The system components include an evaporator and a blower secured to the rear portion of the frame, and a condenser, a compressor, and a receiver drier secured to the front portion of the frame. The condenser, the compressor, and the evaporator are operatively coupled together in fluid communication, and one or more condenser fans are secured to the front portion of the frame in operational engagement with the condenser.

An air conditioning unit for a vehicle includes: an air conditioning case defining an in-case passage in which air flows to a vehicle interior; a cooler arranged in the air conditioning case and configured to cool the air flowing in the in-case passage; a blower that includes a blower motor and an impeller configured to be rotated by the blower motor and generate an air flow in the in-case passage; and a cooling passage portion defining a motor cooling passage in which air flows to cool the blower motor. The blower is arranged downstream of the cooler with respect to the air flow in the air conditioning case. The motor cooling passage includes a passage inlet located downstream of the impeller with respect to the air flow in the in-case passage, and a passage outlet located upstream of the impeller with respect to the air flow in the in-case passage.

A blowing device includes: a casing which is connected to an air conditioner of a vehicle; a ventilation path which is formed from an inlet to an outlet of the casing; a second inclined portion which is provided on the side of the outlet in the casing; an intermediate portion which is formed between the inlet and the second inclined portion; a wind direction variable member that is provided in the ventilation path and is able to change a wind direction of an inflow wind through the inlet toward the intermediate portion or the outlet; and a cover member that is provided with a hole portion penetrating therethrough in an X direction and the cover member is disposed in the +X direction in relation to an end portion of the second inclined portion in the −X direction.

A ventilator for a control device for a vehicle may include a stator having a plurality of coils and a rotor comprising a hollow cylinder. An impeller may include a plurality of blades, the impeller being coupled to the hollow cylinder such that a rotation of the hollow cylinder causes a rotation of the impeller. The hollow cylinder may have a plurality of magnets. The stator may partially encompasses the rotor.

A system for operating a cooling device of a utility vehicle includes an axial fan, a temperature sensor, and a control unit. The axial fan can be rotated by a fan drive and is used to generate a cooling air stream for impingement on a vehicle assembly that is to be cooled. The axial fan has a plurality of fan blades that can be pivoted in terms of an angle of incidence by deflection of an actuator. The temperature sensor determines an actual value of a temperature variable that reflects a present operating temperature of the vehicle assembly. The control unit compares the actual value of the temperature variable with a specified setpoint value to output a target value of a control variable provided for the operation of the actuator. The control variable is one of a hydraulic and a pneumatic operation pressure for deflecting the actuator.

A condenser fan includes a lock hub and multiple blades that are fastened to the hub. Each of the blades includes six planes, each of which having variable parameters including pitch angle, sickle, chord length, and blade curve. For each embodiment of the evaporator fan, the blades are identically configured.

A vehicle air conditioning apparatus 1 installed between a part under a seat and a floor of a vehicle includes a blower unit 2 including a blower, and a heat exchanger unit 3 including a heat exchanger. The blower unit and the heat exchanger unit are connected with one another to form an air flow path along the floor of the vehicle. The blower unit is detachably connected with the heat exchanger unit in a direction crossing the air flow path and being along the floor of the vehicle.