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Improved fans, especially for smoke and vapor extraction systems in kitchens, and extraction systems incorporating such fans

A pumping system, steam technology, applied in components, applications, household stoves, etc. of pumping devices for elastic fluids, can solve problems such as increasing water head loss, affecting fluid dynamic efficiency, and affecting fans

Active Publication Date: 2021-08-27
FABER SPA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This increases the potential for head loss, which affects hydrodynamic efficiency and thus the fan as a whole

Method used

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  • Improved fans, especially for smoke and vapor extraction systems in kitchens, and extraction systems incorporating such fans
  • Improved fans, especially for smoke and vapor extraction systems in kitchens, and extraction systems incorporating such fans
  • Improved fans, especially for smoke and vapor extraction systems in kitchens, and extraction systems incorporating such fans

Examples

Experimental program
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Embodiment Construction

[0040]With reference to said drawings, a fan according to the invention is indicated generally at 1 . The fan comprises a diffuser 2 and an impeller 3; in particular, the diffuser has a first part 4 accommodating the impeller 3 (see in particular Figure 5 ) and a second part 5 (delivery channel) which opens at the free end or outlet 6. The first part 4 has an opening 8 where the impeller 3 is located in the diffuser 2, said opening 8 defining a suction opening for air containing said smoke and / or vapor.

[0041] In one embodiment of the invention, the fan 1 is inserted into a kitchen hood and smoke and / or steam is generated from the hob where the food is prepared. The cooker hood may be of the type that is externally associated with, inserted into, a cupboard located above the hob, to which a part of the hob top or independently is attached; in addition, the cooker hood It can be an independent element arranged at a certain distance from the furnace surface.

[0042] The ...

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Abstract

The invention relates to a fan (1) for a smoke and / or vapor extraction system, said fan comprising an impeller (3) located in a diffuser or volute (2), said impeller (3) driven by an electric motor ( 24) driven, said impeller (3) comprising a body (20) having a smooth portion (21) from which a plurality of radially arranged blades (33) extend; these blades (33) are spaced apart from each other according to The distance over which the periodic function varies. In addition, said diffuser (2) has an air delivery or discharge channel (5) with a cross-section increasing from the inlet to its outlet (6).

Description

technical field [0001] The invention relates to a fan for a smoke and vapor extraction system. Another subject of the invention is a suction system provided with such a fan. Background technique [0002] Reference is made in particular to systems for extracting smoke and steam generated on hobs during food preparation (which systems are also denoted hereinafter as extractor hoods), these systems including hereinafter combinable with cabinets or inserted into the The structure of the cabinet, or the structure may be formed as part of the kitchen furniture itself or may be a separate structure. [0003] This extractor hood comprises a fan that draws smoke and steam from the hob and directs it to a discharge channel leading to the environment in which the hob is located or to the outside of said environment; in the latter case, A discharge channel is associated with a duct that conveys said fumes and vapors outside said environment. [0004] A common fan for range hoods cons...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/44F04D29/28F04D29/30F04D29/66F24C15/20
CPCF04D29/281F04D29/30F04D29/442F04D29/663F24C15/20F04D17/16F04D29/162F04D29/282F04D29/4226F04D29/666F05D2250/184F04D13/06F04D25/08F04D29/22F24C15/2042
Inventor I·阿斯托尔菲S·比奥科S·切利F·法吉诺利R·加拉西
Owner FABER SPA
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