A cup (28) of a external rotor with symmetry of revolution about the axis comprises: a first cylindrical portion (68) which is radially internal, a second cylindrical portion (32) which is radially external and a third portion (70) between the two cylindrical portions (32, 68). When viewed in cross-section, the third portion (70) extends between two points (P1, P2) which define a straight line which forms, with the axis of the rotor cup (28), an angle (a) of between 65° and 80°. The ratio between the distance (R-P1, R-p2) between the first point (P1, P2) which is radially internal or radially external, respectively, and the axis of symmetry of the rotor cup (28), on the one hand, and the radius (R32) of the second cylindrical portion (32), on the other hand, is between 0.04 and 0.32 or between 0.65 and 1.0, respectively.

The invention relates to a ventilation device for a vehicle ventilation, heating and/or air-conditioning system, including at least one housing that includes at least one wall defining an inner volume in which at least one radial propeller capable of being rotated and at least one guide member are received, the radial propeller and the guide member being configured to generate an air flow having a general direction parallel to an axis of rotation of the radial propeller between an air inlet of the radial propeller and an air outlet formed in the wall of the housing of the ventilation device, at least a part of the wall of the housing being configured to straighten the air flow at the outlet of the radial propeller. The guide member is configured to direct the air flow towards the axis of rotation of the radial propeller.

The invention concerns a control module (15) of a blower for a heating and/or ventilation and/or air conditioning device, in particular for a motor vehicle, the blower being configured to generate an airflow, and the control module (15) being configured to control the blower and comprises a heat sink (157), a heat dissipation base (158) and at least one active power electronic component (153) mounted on the heat dissipation base (158). According to the invention, the heat sink (157) comprises a housing (156) for receiving at least a part of the heat dissipation base (158). The heat sink base (158) is mounted by press-fitting into said housing (156). The invention also relates to a corresponding heating and/or ventilation and/or air conditioning device.

A centrifugal blower includes a blower base, multiple blades fastened to the blower base, a hub integrated to a central portion of the blower base, and a top shroud to provide surrounding coverage to the multiple blades. The centrifugal blower is housed within an evaporator. The centrifugal blower may operate at operating speeds that are lower than those of typical or currently known implementations while generating an airflow that meets or even exceeds those of the typical or currently known implementations.

In an air conditioning case, a blower sucks air flowing out from first and second upstream side ventilation paths from one side in an axial direction of a fan axis by rotation of a blower fan and allows the sucked air to flow to first and second downstream side ventilation paths. An upstream side guide member is provided on one side in the axial direction with respect to the blower fan and guides the air to the blower fan. Further, the upstream side guide member has a twisted shape and guides the air to the blower fan along the twisted shape.

The invention relates to a heating, ventilation and/or air conditioning device for a motor vehicle, having an air inlet box with a plurality of walls and a spiral box arranged downstream of the air inlet box with respect to the flow of an air flow. The air inlet box further includes at least one first air inlet for the entry of a first air flow and at least one second air inlet for the entry of a second air flow. The air inlet box has a first internal duct made of porous material arranged to connect the first air inlet to the inlet of the spiral box.

A camper shell ventilation apparatus for ventilating a camper shell on a pickup truck includes a vent body coupled to a shell top of the camper shell. A blower body has a blower flange configured to be coupled to an inner side of the shell top of the camper shell below the vent body. A blower bottom side has an exhaust aperture extending through to a blower interior and a blower front side has an output aperture extending through to the blower interior. A blower is coupled to the blower body and is in fluid communication with each of a vent aperture and the output aperture to blow air into the camper shell. A power switch is coupled within a cab of the pickup truck to control the blower.

An air conditioning unit includes a conditioning chamber, a fan with a fan air input and a fan air output, and an evaporative unit. The fan and the evaporative unit are arranged in the conditioning chamber. The fan draws in entry air to enter the air conditioning unit, then through the evaporative unit, to condition the entry air to produce conditioned air. Within the conditioning chamber, the fan is positioned and configured such that at least 30% of an area of the fan air output are positioned above an average top surface of the evaporative unit, and that air from the at least 30% of the area of the fan air output is directed towards a wall of the conditioning chamber prior to being redirected downwards and through the evaporative unit.

A centrifugal fan includes first blades and second blades connected via a separation plate. A side plate supports the first blades located on one side in an axial direction, and a main plate supports the second blades on the other side in the axial direction. The separation plate has an inner diameter larger than or equal to an outer diameter of the main plate and larger than or equal to a largest inner diameter of the second blade. The separation plate has an outer diameter smaller than or equal to an inner diameter of the side plate and smaller than or equal to a smallest outer diameter of the first blade.

The motor support (16) for a motor-fan unit of a ventilation installation for a vehicle comprises: two coaxial rings (20; 22), including an inner ring (20) capable of receiving one or more elements of the motor and an outer ring (22) capable of fixing fastened to a housing forming a structural element, a decoupling element (24) between the two coaxial rings (20; 22); and a means (44) for limiting the relative movement of one of the two rings (20:22) relative to the other, in a plane normal to the common axis (A) of the two rings (20; 22) comprising at least one radial abutment (44) fastened to one of the two rings (20; 22), with a radial clearance between the radial abutment (44) and the other of the two rings (20; 22).