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Ventilation unit

A channel and air supply channel technology, applied in the field of ventilation units, can solve problems such as not achieving satisfactory results

Inactive Publication Date: 2015-02-25
SPAL AUTOMOTIVE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In this particular application, state-of-the-art fans were developed to obtain low noise emissions with high hydrodynamic efficiency in a relatively limited size, but did not achieve satisfactory results

Method used

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Experimental program
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Embodiment Construction

[0017] Referring to the drawings, reference number 1 denotes a ventilation unit according to the invention, the purpose of which is to generate a cooling air flow F. As shown in FIG.

[0018] The ventilation unit 1 comprises a centrifugal rotor 2, in particular a radial rotor, having an outer diameter D and capable of rotating about an axis of rotation R; means for operating the rotor 2, of a substantially known type and schematically Shown at block 3; and a diffuser 4 for supporting the rotor 2.

[0019] The rotor 2, of which only those parts necessary for understanding the invention are described, includes a hub 2a and a plurality of blades 2b having blade ends 2c, which are connected to the hub 2a.

[0020] According to a plane P perpendicular to the axis of rotation R, the diffuser 4 extends and defines a supply air channel 5 into which the rotor 2 is inserted.

[0021] The diffuser comprises an inlet 20 and first and second outlets 6, 7 for the flow F.

[0022] The firs...

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Abstract

A ventilation unit (1) for generating an air flow (F) comprises a centrifugal rotor (2) able to rotate about an axis (R) of rotation, a diffuser (4) comprising a first and a second outlet (6, 7), the outlets being positioned on opposite sides of the centrifugal rotor (2) and delimiting a blowing duct (5); the centrifugal rotor (2) is inserted in the blowing duct (5) and is aligned with the first outlet (6) and with the second outlet (7) according to a main axis (X) which is perpendicular to the axis (R) of rotation.

Description

technical field [0001] The invention relates to a ventilation unit, in particular a ventilation unit comprising a centrifugal fan, more particularly a radial fan, housed in a corresponding diffuser. Background technique [0002] A radial fan is a basically known type of fan which, when driven in rotation, draws in air through an inlet which is coaxial with the axis of rotation and which produces an airflow diffused radially from the fan itself. [0003] Such a fan is usually inserted together with a corresponding motor into a diffuser suitably shaped for directing and optimizing the air flow generated by the fan. [0004] In general, the aforementioned fans are used in the automotive sector, such as in cars, trucks, agricultural machinery, earth moving machinery, buses, etc., to remove heat from heat exchangers for circulation in the driver and passenger compartments Air, or in general, is used to cool components or parts that heat up during operation. [0005] Recently, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/42
CPCF04D29/4246F04D29/44F24F7/08F04D29/42
Inventor 彼得罗·德菲利皮斯
Owner SPAL AUTOMOTIVE