Abstract: A fan wheel for propelling cooling air for an internal combustion engine, including a hub on which a plurality of fan blades is arranged and which includes a rib structure that extends peripherally and has substantially rectangular and flat ribs having an edge region. The ribs sit on the hub by the edge regions thereof and have a longitudinal direction that extends substantially tangentially to the circumferential direction of the hub, the ribs being in contact with one another.

Abstract: A motor vehicle may include a radiator arrangement. The radiator arrangement may include a radiator grill having a cooling air inlet and a radiator arranged behind the cooling air inlet with respect to a forward traveling direction. A flow-directing device may be arranged to direct a cooling air flow from the cooling air inlet to the radiator. The flow-directing device may include at least one baffle element disposed on a radiator-grill side of the radiator arrangement and at least one other baffle element disposed on a radiator side. Additionally or alternatively, the flow-directing device may include a bellows arranged on the radiator-grill side or on the radiator side. Additionally or alternatively, the flow-directing device may include at least one rail including a groove and at least one rail baffle element guided in the at least one guide groove.

Abstract: A fan wheel for propelling cooling air for an internal combustion engine, including a hub on which a plurality of fan blades is arranged and which includes a rib structure that extends peripherally and has substantially rectangular and flat ribs having an edge region. The ribs sit on the hub by the edge regions thereof and have a longitudinal direction that extends substantially tangentially to the circumferential direction of the hub, the ribs being in contact with one another.

Abstract: A motor vehicle may include a radiator arrangement. The radiator arrangement may include a radiator grille having a cooling air inlet and a radiator arranged behind the cooling air inlet with respect to a forward traveling direction. A flow-directing device may be arranged to direct a cooling air flow from the cooling air inlet to the radiator. The flow-directing device may include at least one baffle element disposed on a radiator-grille side of the radiator arrangement and at least one other baffle element disposed on a radiator side. Additionally or alternatively, the flow-directing device may include a bellows arranged on the radiator-grille side or on the radiator side. Additionally or alternatively, the flow-directing device may include at least one rail including a groove and at least one rail baffle element guided in the at least one guide groove.

Abstract: A fan, with fan blades, especially used for the cooling of a motor vehicle, with the fan blades being fixed to a fan hub. In spite of being made of only a small amount of material, the fan is highly resistant to the flow conditions in the motor vehicle, each fan blade being bent rearwards at an angle in the direction of a blade root, an angled region of the fan blade being at least partially bent downwards towards the fan hub.

Abstract: The invention relates to an axial fan for delivering cooling air, in particular for an internal combustion engine of a motor vehicle, comprising fan blades which are fastened to a hub and which have a pressure side and a suction side and a trailing edge and a blade depth, on the pressure side of which fan blades is arranged a hub ramp which rises counter to the direction of rotation of the axial fan, wherein the trailing edge has an outer region situated radially outside the hub ramp and has an inner region situated radially within the hub ramp.

Abstract: Disclosed herein is a fan comprising fan blades, especially for a cooler of a motor vehicle, said fan blades being fixed to a fan hub. In spite of being made of only a small amount of material, said fan is highly resistant to the flow conditions in the motor vehicle, each fan blade being bent rearwards at an angle in the direction of a blade root, an angled region of the fan blade being at least partially bent downwards towards the fan hub.

Abstract: Fan system, in particular for a heat exchanger, which fan system has at least one receptacle for a fan drive unit, at least one housing wall, and at least one strut, in particular a number of struts which connect the receptacle to the housing wall, wherein the struts are arranged between at least one heat exchanger and at least one fan wheel, wherein at least one strut has a strut end section which is configured as a flow guiding face and has an angle ? with respect to a fan-wheel axis direction.

Abstract: Fan system, in particular for a heat exchanger, which fan system has at least one receptacle for a fan drive unit, at least one housing wall, and at least one strut, in particular a number of struts which connect the receptacle to the housing wall, wherein the struts are arranged between at least one heat exchanger and at least one fan wheel, wherein at least one strut has a strut end section which is configured as a flow guiding face and has an angle ? with respect to a fan-wheel axis direction.

Abstract: The invention relates to an axial ventilator for the cooling device of an internal combustion engine, in particular for a motor vehicle, wherein said axial ventilator comprises a rotatably driven hub (2) provided with air blades (11-19) which are fixed thereto and radially inwardly limited by an internal diameter (Di) and radially outwardly limited by an external diameter (Da). In order to obtain a small-sized axial ventilator, the ratio between the internal (Di) and external (Da) diameters is greater than 40%.

Abstract: The invention relates to an axial fan, in particular for radiators of motor vehicles, the axial blades being fastened to a fan hub, and the fan hub in turn being connected to a viscous fluid friction clutch. According to the invention, air-guide elements or guide blades are arranged in the hub region on the front side or suction side of the axial fan. These air-guide elements or guide blades deflect the flow from the front side to the rear side of the blades and thereby stabilize the flow. To further improve the flow conditions, the hub region is covered by a cap on its front side.