EP4296518A1 - Ventilateur, hotte aspirante et appareil combiné - Google Patents

Ventilateur, hotte aspirante et appareil combiné Download PDF

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Publication number
EP4296518A1
EP4296518A1 EP23180418.8A EP23180418A EP4296518A1 EP 4296518 A1 EP4296518 A1 EP 4296518A1 EP 23180418 A EP23180418 A EP 23180418A EP 4296518 A1 EP4296518 A1 EP 4296518A1
Authority
EP
European Patent Office
Prior art keywords
fan
housing
air intake
air
drive motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP23180418.8A
Other languages
German (de)
English (en)
Inventor
Simon Witte
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Berbel Ablufttechnik GmbH
Original Assignee
Berbel Ablufttechnik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Berbel Ablufttechnik GmbH filed Critical Berbel Ablufttechnik GmbH
Publication of EP4296518A1 publication Critical patent/EP4296518A1/fr
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/16—Centrifugal pumps for displacing without appreciable compression
    • F04D17/162—Double suction pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
    • F04D29/282—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F24C15/2042—Devices for removing cooking fumes structurally associated with a cooking range e.g. downdraft

Definitions

  • the invention relates to a fan, with at least a first fan housing, which has at least two air intake openings and at least one air outlet opening, at least a first drive motor, at least one radial fan wheel arranged in the first fan housing, which is driven by the first drive motor and is designed to be driven by the fan axially suck in conveyed air through the air intake openings of the first fan housing and blow it out radially through the air outlet opening of the first fan housing.
  • the invention also relates to an extractor hood with such a fan and a combination device with such an extractor hood and with a hob.
  • a corresponding combination device is available DE 10 2020 200 864 A1 known.
  • a disadvantage of the previously known combination device is the large space required around the fan in the extractor hood. In order to allow the cooking fumes to flow into the fan both in the upward and downward direction, intake channel sections are required both above the fan wheel and below the fan wheel. As a result, the possible fan wheel area, especially with a maximum vertical extension of the extractor device of 100 mm between the cooking fume inflow opening and the underside of the suction duct, is severely limited by the resulting limited vertical height of the fan wheel. Therefore, very high speeds of the fan wheel are necessary in order to convey sufficient cooking fumes. This makes the operation of the extractor hood in the combination device described very loud.
  • This task is solved by a fan with the features of claim 1.
  • the task is also solved by an extractor hood with the features of claim 9 and by a combination device with the features of claim 11.
  • the fan has at least one further fan housing, with at least two further air intake openings in the further fan housing, at least one further air outlet opening in the further fan housing, at least one further radial fan wheel arranged in the further fan housing, which is driven by the first drive motor of the fan or at least one further Drive motor of the fan is driven and designed to axially suck in conveyed air through the air intake openings of the further fan housing and blow it out radially through the air outlet opening of the further fan housing, a further fan wheel surface and thus a larger overall effective fan wheel surface can be provided, so that lower speeds for the Operation of the fan is sufficient. This allows the volume of the fan to be significantly reduced during operation.
  • the axes of rotation of the radial fan wheels of the fan in the extractor hood are preferably oriented horizontally. This allows the air intake openings to be positioned laterally, which means the vertical height of the extractor hood can be minimized. With the horizontally aligned, axial suction via the air intake openings and through the radial blowing out via the air outlet openings, the vertical height of the extractor hood, which is at least required for the installation of such a fan, can be made dependent on the diameter of the fan's radial fan wheels. On the other hand, by increasing the axial width of the radial fan wheels, the usable fan wheel area can be kept at least the same size, even with a reduced diameter of the radial fan wheels.
  • a radial fan wheel can each be arranged in the fan housings of the fan.
  • two radial fan wheels can be arranged next to one another in the fan housings of the fan, with one of the two fan wheels sucking in the air axially via one of the air intake openings.
  • the fan housings can surround the radial fan wheels in a spiral shape.
  • a single drive motor is preferably required, so that installation space and costs for additional drive motors can be saved and the achievable fan wheel area can be increased in relation to the required installation space for other components in the fan.
  • several drive motors can be used to drive the fan's radial fan wheels, so that the individual motors can be made smaller.
  • the air intake openings are arranged on opposite sides of the respective fan housing, with the air outlet openings of both fan housings being arranged on the same side.
  • Such a preferably axial arrangement of the air intake openings offers a simple possibility of axially sucking in the air conveyed by the fan on both sides.
  • the one-sided alignment of the air outlet openings makes it very easy to combine the air delivered via the fan's fan wheels into a common exhaust air flow. This can facilitate post-treatment of the exhaust air flow in a post-filter arranged downstream of the fan.
  • the first drive motor is arranged outside the first fan housing or the drive motors are arranged outside the first fan housing, wherein a first drive shaft section of the fan is guided by the first drive motor through an air intake opening into the first fan housing and that rotates at least one radial fan wheel in the first fan housing.
  • the arrangement of the first drive motor outside the first fan housing or the arrangement of the drive motors outside the first fan housing enables the use of a more compact fan housing and thus more compact radial fan wheels. Since only a drive shaft section of the fan is guided by the externally arranged drive motor through one of the air intake openings into the first fan housing, no internal installation space needs to be provided for the drive motor beyond the diameter of the radial fan wheel.
  • the external drive motor drives the radial fan wheel in the first fan housing simply via the drive shaft section of the fan, which leads from the drive motor, which is arranged at a distance from the air intake opening of the first fan housing, through this air intake opening.
  • the drive motor arranged in front of the air intake opening is sufficiently spaced from the air intake opening by the elongated drive shaft section, so that the air conveyed by the fan can flow unhindered into the fan housing through the drive motor.
  • a particularly advantageous embodiment of the invention relates to the fact that the first drive motor is also arranged outside the further fan housing or the drive motors are arranged outside the further fan housing, with a further drive shaft section of the fan being connected by the first drive motor or by the further drive motor through an air intake opening the further fan housing is guided and the at least one further radial fan wheel rotates in the further fan housing. Since only the further drive shaft section of the fan is guided by the externally arranged drive motor through an air intake opening into the further fan housing, no internal installation space needs to be provided for the drive motor beyond the diameter of the radial fan wheel.
  • the additional fan housing can therefore be similar or the same as that first fan housing must be dimensioned.
  • the external drive motor simply drives the radial fan wheel in the further fan housing via the further drive shaft section of the fan, which leads from the drive motor, which is arranged at a distance from the air intake opening of the further fan housing, through this air intake opening.
  • the drive motor arranged in front of the air intake opening is sufficiently spaced from the air intake opening by the further, elongated drive shaft section, so that the air conveyed by the fan can flow through the drive motor unhindered into the further fan housing.
  • a particularly advantageous embodiment of the invention provides that the two drive shaft sections are each sections of a continuous drive shaft, which connects the radial fan wheel arranged in the first fan housing and the at least one further radial fan wheel to the first drive motor.
  • the drive of a continuous drive shaft represents a particularly simple way to drive the fan wheels in the fan housings, which are suspended on the sections of the continuous drive shaft.
  • the fan's radial fan wheels can easily be driven at the same speed via the connection to the drive shaft. This prevents beating noises caused by any deviations in the speed of the fan wheels.
  • An advantageous embodiment of the invention provides that the first drive motor or drive motors is arranged on a housing section of the fan that connects the at least two fan housings in an installation position between the fan housings. Mounting the drive motor or motors between the fan housings provides a simple and compact fan design. The installation position between the fan housings offers the possibility of storing the radial fan wheels outside the fan housings. The housing section connecting the fan housings serves to fix the fan housings to one another and at the same time to fix the drive motor or drive motors. This allows the fan to be designed as a compact assembly unit that can be delivered pre-assembled before an extractor hood is manufactured.
  • At least one air intake opening pointing away from the first drive motor or from the drive motors unblocks the suction-side interior of the radial fan wheel assigned to this air intake opening.
  • the associated radial fan wheel can be flowed particularly evenly and efficiently. There is less turbulence and the noise emissions from the fan during operation are reduced.
  • An advantageous embodiment provides that at least one air intake opening oriented towards the first drive motor or the drive motors is projected through by one of the drive shaft sections and otherwise unblocked the suction-side interior of the radial fan wheel assigned to this air intake opening.
  • the preferably central arrangement of the drive shaft sections in the air intake opening ensures a particularly uniform and efficient flow of the associated fan wheel through the air intake opening around the drive shaft sections.
  • the drive shaft sections protruding through the air intake opening hardly prevent the air conveyed by the fan from flowing towards the radial fan wheel, since the air is sucked in essentially parallel to the course of the drive shaft sections.
  • the subject of the invention is an extractor hood, as described in more detail below, for extracting cooking fumes from a hob, with a fan as described in more detail below.
  • an extractor hood also offers the option of a particularly compact design. This not only allows the cooking fumes on a hob to be extracted particularly quietly, but the extractor hood also requires little space in the kitchen, meaning that the space that is freed up can simply be used for other purposes. This is particularly advantageous in smaller kitchens.
  • the arrangement of the drive motor outside the fan housing when used in extractor hoods has the advantage that the drive motor is less contaminated by fats and/or oils from the cooking fumes.
  • An advantageous embodiment of the extractor hood provides that the fan is arranged in a device housing of the extractor hood, the device housing forming a suction chamber in the flow direction of the air conveyed by the fan on the suction side between at least one grease separation element of the extractor hood and the air intake openings of the fan housing, with at least one exhaust duct of the Device housing removes the air blown out by the fan on the pressure side from the device housing.
  • the air intake openings in the fan housings can be flowed very evenly via the intake chamber.
  • the large cross-sectional areas at the air intake openings ensure low noise emissions.
  • the air blown out of a fan housing via an outlet opening can be guided out of the device housing via the exhaust air duct.
  • the large cross-sectional areas of the exhaust air duct ensure low noise emissions.
  • the air blown out of the fan housings via the exhaust openings can also be led out of the device housing via the exhaust air duct.
  • the subject of the invention is a combination device with an extractor hood as described above and in more detail below and a hob, the extractor being used as a hob extractor for extracting cooking fumes in a downward-pointing direction through at least one exhaust opening arranged in the hob (also referred to as a trough fan). is trained.
  • the compact design of the extractor hood is particularly important with such combination devices. By using the fan described above and in more detail below in the extractor hood of such a combination device, a particularly low vertical height can be achieved.
  • the lateral orientation of the air intake openings enables horizontally aligned, axial intake via the air intake openings arranged on both sides of the fan housings.
  • the air conveyed by the fan can be blown out radially via the air outlet openings so that the vertical height of the entire extractor hood can be adjusted to the required diameter of the radial fan wheels. This means it is not necessary to provide a generous air duct above or below the fan housings for the air sucked in or blown out in the extractor hood. This means that the vertical height of the combination device can easily be a maximum of 250 mm, in particular a maximum of 200 mm.
  • FIG. 1 Designated by reference number 26, a combination device according to the invention is shown.
  • This combination device 26 includes a hob 20 and an extractor hood 19 underneath.
  • the hob 20 is provided with several hotplates 28, which are used to prepare food in cookware placed on the hob 20.
  • the extractor hood 19 serves as a hob extractor for extracting cooking fumes in a downward direction through an exhaust opening 27 arranged in the hob 20.
  • a device housing 21 of the extractor hood 19 is arranged under the hob 20.
  • the Figure 2 shows a perspective sectional view through the device housing 21 of the extractor hood 19 according to Figure 1 along a horizontal cutting plane.
  • the extractor hood 19 has a special fan 1.
  • This fan 1 is arranged in the device housing 21 of the extractor hood 19.
  • the fan 1 has a first fan housing 2, which has two air intake openings 3, 4 and an air outlet opening 5.
  • the fan 1 also includes a second fan housing 9, which also has two air intake openings 10, 11 and an air outlet opening 12.
  • Two radial fan wheels 7, 8, 13, 14 are arranged in both the first fan housing 2 and the second fan housing 9. The radial fan wheels 7, 8, 13, 14 are driven by a drive motor 6 of the fan.
  • the radial fan wheels 7, 8, 13, 14 suck in the air conveyed by the fan axially via the air intake openings 3, 4, 10, 11 and blow the air radially out of the fan housings 2, 9 of the fan 1 via the air outlet openings 5, 12.
  • the first radial fan wheel 7 is assigned to the first air intake opening 3 and is designed to be open to this air intake opening 3
  • the second radial fan wheel 8 attached to the first radial fan wheel 7 is assigned to the second air intake opening 4 and is designed to be open to this air intake opening 4.
  • the two radial fan wheels 7, 8 each suck in air axially through the open design via the assigned air intake openings 3, 4 and blow it radially out of the first fan housing 2 via the same air outlet opening 5.
  • the third radial fan wheel 13 is assigned to the third air intake opening 10 and to this Air intake opening 10 is designed to be open, while the fourth radial fan wheel 14 attached to the third radial fan wheel 13 is assigned to the fourth air intake opening 11 and is designed to be open to this air intake opening 11.
  • the two radial fan wheels 13, 14 each suck in air axially and blow it radially out of the second fan housing 9 via the same air outlet opening 12.
  • the common axis of rotation of the four radial fan wheels 7, 8, 13, 14 of the fan 1 is oriented horizontally in the extractor hood 19.
  • the air intake openings 3, 4, 10, 11 are positioned laterally, so that the air conveyed by the fan 1 is sucked in axially in the direction of the axis of rotation of the radial fan wheels 7, 8, 13, 14.
  • a large fan wheel area can be provided via the total of four radial fan wheels 7, 8, 13, 14, so that the drive motor 6 drives the radial fan wheels 7, 8, 13, 14 can drive at a low speed. This allows the volume of the fan 1 to be significantly reduced during operation.
  • the device housing 21 forms a suction chamber 22 in the flow direction of the air conveyed on the suction side by the fan 1 between a grease separator element 23 of the extractor hood 19 and the air intake openings 3, 4, 10, 11 of the fan housings 2, 9.
  • exhaust air ducts 24, 25 there are also two exhaust air ducts 24, 25 in the device housing 21 formed, the air blown out by the fan 1 on the pressure side is removed from the device housing 21.
  • the exhaust air channels 24, 25 carry air blown out on the pressure side from the suction chamber separately from the air outlet openings 5, 12 of the fan housings 2, 9 separately from the device housing 21 of the extractor hood 19.
  • the air outlet openings 5, 12 of both fan housings 2, 9 are arranged on the same side and thus blow the conveyed air radially in the same direction out of the fan housings 2, 9 of the fan 1.
  • An exhaust air duct 29 is connected to the exhaust air ducts 24, 25 connected, which in the version shown here combines the air flows from the exhaust air ducts 24, 25.
  • a secondary filter (not shown) can also be connected to the exhaust air shaft 29 for recirculating air operation. Otherwise, the combined air flow can be diverted from the kitchen to the outside via a wall connection (not shown).
  • FIG 3 is a view of the fan 1 according to the Figures 1 and 2 shown.
  • the suction chamber 22 ( Fig. 2 ) forming device housing 21 ( Fig. 1 ) is omitted in this view in order to show the fan 1 in the preferred installation position in the extractor hood 19 ( Fig. 1 ) under the hob 20 to show.
  • the drive motor 6 of the fan 1 is arranged on a housing section 18 of the fan 1 between the fan housings 2, 9 that connects the two fan housings 2, 9.
  • the exhaust air channels 24, 25 direct the air blown out by the fan 1 on both sides along the space between them in the suction chamber 22 ( Fig. 2 ) under the exhaust opening 27 ( Fig. 1 ) positioned fat separating element 23.
  • the fat separating element 23 is a known centrifugal separator for separating oil and / or fats from the cooking fumes.
  • the fat separating element 23 can also be designed differently in order to take on this task.
  • the Figure 4 shows a sectional view through the combination device 26, the vertical sectional plane also running through the fan 1 in the extractor hood 19, and thus offers insights into the fan housings 2, 9. It can be clearly seen in this illustration that the air intake openings 3, 4, 10, 11 are arranged on opposite sides of the respective fan housing 2, 9. This means that the air conveyed by the fan 1 can be sucked in axially on both sides from the suction chamber 22 surrounding the fan housings 2, 9.
  • the drive motor 6 of the fan 1 is arranged on the connecting housing section 18 of the fan 1 outside the first fan housing 2 and outside the second fan housing 9.
  • a first drive shaft section 15 of the fan 1 extends from the drive motor 6 through the second air intake opening 4 into the first fan housing 2.
  • the first drive shaft section 15 drives the first radial fan wheel 7 and the second radial fan wheel 8 in rotation.
  • the drive motor 6 Via a second drive shaft section 16 of the fan 1, the drive motor 6 also drives the third radial fan wheel 13 and the fourth radial fan wheel 14 in the second fan housing 9 in rotation through the third air intake opening 10.
  • the two drive shaft sections 15, 16 can form sections of a continuous drive shaft 17, which connects the radial fan wheels 7, 8 arranged in the first fan housing 2 and the radial fan wheels 13, 14 arranged in the second fan housing 9 to one another.
  • the central arrangement of the drive shaft 17 in the air intake openings 4, 10 enables a particularly uniform and efficient flow to the assigned air intake openings Radial fan wheels 8, 13 can be reached through the air intake opening 4, 10 around the drive shaft 17.
  • the drive shaft 17 protruding through the air intake opening 4, 10 hardly prevents the air conveyed by the fan from flowing towards the radial fan wheels 8, 13, since the air is sucked in from the suction chamber 22 along the drive shaft 17.
  • the Figure 5 shows a sectional view through the suction chamber 22 of the device housing 21.
  • the exhaust air channels 24, 25 expand from the fan 1.
  • the air led out of the device housing 21 can be calmed in the exhaust air ducts 24, 25, so that noise emissions caused by turbulence are avoided.
  • FIG. 6 A sectional view through the second exhaust air duct 25 is also shown. It can also be seen how the fan housings 2, 9 spirally surround the radial fan wheels 7, 8, 13, 14, since the second fan housing 9 is shown in section.
  • an extractor hood 19 is shown for a combination device according to the invention.
  • a combination device includes a hob (not shown) and an extractor hood 19 underneath.
  • the hob is equipped with several hotplates that are used to prepare food using cookware placed on the hob.
  • the extractor hood 19 serves as a hob extractor for extracting cooking fumes in a downward direction through an exhaust opening 27 arranged in the hob.
  • a device housing 21 of the extractor hood 19 is arranged under the hob. It can also be seen how the fan housings 2, 9 support the radial fan wheels 7, 8, 13, 14 ( Fig. 8 ) enclose in a spiral.
  • the Figure 8 shows a sectional view through the device housing 21 of the extractor hood 19 according to Figure 7 along a horizontal cutting plane.
  • the extractor hood 19 has a special fan 1.
  • This fan 1 is arranged in the device housing 21 of the extractor hood 19.
  • the fan 1 has a first fan housing 2, which has two air intake openings 3, 4 and an air outlet opening 5.
  • the fan 1 also includes a second fan housing 9, which also has two Air intake openings 10, 11 and an air outlet opening 12.
  • Two radial fan wheels 7, 8, 13, 14 are arranged in both the first fan housing 2 and the second fan housing 9. The radial fan wheels 7, 8, 13, 14 are driven by two drive motors 6, 30 of the fan.
  • the radial fan wheels 7, 8, 13, 14 suck in the air conveyed by the fan axially via the air intake openings 3, 4, 10, 11 and blow the air radially out of the fan housings 2, 9 of the fan 1 via the air outlet openings 5, 12.
  • the first radial fan wheel 7 is assigned to the first air intake opening 3 and is designed to be open to this air intake opening 3
  • the second radial fan wheel 8 attached to the first radial fan wheel 7 is assigned to the second air intake opening 4 and is designed to be open to this air intake opening 4.
  • the two radial fan wheels 7, 8 each suck in air axially through the open design via the assigned air intake openings 3, 4 and blow it radially out of the first fan housing 2 via the same air outlet opening 5.
  • the third radial fan wheel 13 is assigned to the third air intake opening 10 and to this Air intake opening 10 is designed to be open, while the fourth radial fan wheel 14 attached to the third radial fan wheel 13 is assigned to the fourth air intake opening 11 and is designed to be open to this air intake opening 11.
  • the two radial fan wheels 13, 14 each suck in air axially and blow it radially out of the second fan housing 9 via the same air outlet opening 12.
  • the preferably common axis of rotation of the four radial fan wheels 7, 8, 13 , 14 of the fan 1 is oriented horizontally in the extractor hood 19.
  • the air intake openings 3, 4, 10, 11 are positioned laterally, so that the air conveyed by the fan 1 is sucked in axially in the direction of the axis of rotation of the radial fan wheels 7, 8, 13, 14.
  • a large fan wheel area can be provided via the total of four radial fan wheels 7, 8, 13, 14, so that the drive motors 6, 30 can drive the radial fan wheels 7, 8, 13, 14 at a low speed.
  • the use of two drive motors 6, 30 makes it possible to drive the radial fan wheels 7, 8 and 13, 14 at two different speeds in the two separate fan housings 2 and 9. This means that the speeds can be better adapted to requirements and the cooking situation on the hob. This allows the volume of the fan 1 to be significantly reduced during operation.
  • the device housing 21 forms a suction chamber 22 in the direction of flow on the suction side of the fan 1 conveyed air between a fat separating element 23 of the extractor hood 19 and the air intake openings 3, 4, 10, 11 of the fan housings 2, 9.
  • Two exhaust air channels 24, 25 are also formed in the device housing 21, the air blown out by the fan 1 on the pressure side from the device housing 21 dissipate.
  • the exhaust air channels 24, 25 carry air blown out on the pressure side from the suction chamber 22 separately from the air outlet openings 5, 12 of the fan housings 2, 9 from the device housing 21 of the extractor hood 19.
  • the air outlet openings 5, 12 of both fan housings 2, 9 are arranged on the same side and thus blow the conveyed air radially in the same direction out of the fan housings 2, 9 of the fan 1.
  • An exhaust air duct 29 can be connected to the exhaust air ducts 24, 25 ( Fig. 2 ) be connected, which in the embodiment shown combines the air flows from the exhaust air ducts 24, 25.
  • a secondary filter (not shown) can also be connected to the exhaust air shaft 29 for recirculating air operation. Otherwise, the combined air flow can be diverted from the kitchen to the outside via a wall connection (not shown).
  • the drive motors 6 and 30 of the fan 1 are arranged on a housing section 18 of the fan 1 connecting the two fan housings 2, 9 between the fan housings 2, 9.
  • the exhaust air channels 24, 25 direct the air blown out by the fan 1 on both sides along the space between them in the suction chamber 22 ( Fig. 2 ) under the exhaust opening 27 ( Fig. 1 ) positioned fat separating element 23.
  • the fat separating element 23 is a known centrifugal separator for separating oil and / or fats from the cooking fumes.
  • the fat separating element 23 can also be designed differently in order to take on this task.
  • the exhaust air channels 24, 25 expand from the fan 1. As a result, the air led out of the device housing 21 can be calmed in the exhaust air ducts 24, 25, so that noise emissions caused by turbulence are avoided.
  • the Figure 9 shows a sectional view through the extractor hood 19 according to Fig. 7 , whereby the vertical sectional plane also runs through the fan 1 in the extractor hood 19, and thus offers insights into the fan housings 2, 9.
  • the air intake openings 3, 4, 10, 11 are on opposite sides of the respective fan housing 2, 9 are arranged.
  • the drive motors 6 and 30 of the fan 1 are arranged on the connecting housing section 18 of the fan 1 outside the first fan housing 2 and outside the second fan housing 9.
  • a first drive shaft section 15 of the fan 1 extends from the first drive motor 6 through the second air intake opening 4 into the first fan housing 2.
  • the first drive shaft section 15 drives the first radial fan wheel 7 and the second radial fan wheel 8 in rotation.
  • the third radial fan wheel 13 and the fourth radial fan wheel 14 in the second fan housing 9 are also driven to rotate by the second drive motor 30 through the third air intake opening 10.
  • the air intake openings 3, 11 facing away from the drive motors 6, 30 are only penetrated by the drive shaft sections 15, 16.
  • the storage of the drive shaft sections 15, 16 on both sides outside the fan housing 2, 9 ensures a stable construction and low wear.
  • the drive shaft sections 15, 16 are preferably stored outside the suction chamber 22 in order to avoid contamination.
  • the air intake openings 4, 10 oriented towards the drive motors 6, 30 are also only penetrated by the drive shaft sections 15, 16. Otherwise, the suction-side interior of the radial fan wheels 8, 13 assigned to the air intake opening 4, 10 is exposed, unobstructed, towards the suction chamber 22.
  • the central arrangement of the drive shaft sections 15, 16 in the air intake openings 3, 4, 10, 11 allows a particularly uniform and efficient flow of the associated radial fan wheels 7, 8, 13, 14 through the air intake openings 3, 4, 10, 11 around the drive shaft sections 15 , 16 can be achieved around.
  • the drive shaft sections 15, 16 projecting through the air intake openings 3, 4, 10, 11 hardly prevent the air conveyed by the fan from flowing towards the radial fan wheels 7, 8, 13, 14, since the air from the suction chamber 22 runs along the drive shaft sections 15, 16 is sucked in.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP23180418.8A 2022-06-20 2023-06-20 Ventilateur, hotte aspirante et appareil combiné Pending EP4296518A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102022115304.5A DE102022115304A1 (de) 2022-06-20 2022-06-20 Lüfter, Dunstabzug, und Kombinationsgerät

Publications (1)

Publication Number Publication Date
EP4296518A1 true EP4296518A1 (fr) 2023-12-27

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ID=86904115

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23180418.8A Pending EP4296518A1 (fr) 2022-06-20 2023-06-20 Ventilateur, hotte aspirante et appareil combiné

Country Status (2)

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EP (1) EP4296518A1 (fr)
DE (1) DE102022115304A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2833186Y (zh) * 2005-09-12 2006-11-01 余名声 空气调节装置之送风机构成
EP2653729A1 (fr) * 2012-04-20 2013-10-23 ebm-papst Mulfingen GmbH & Co. KG Ventilateur radial avec un carter auxiliaire protégé électromagnétiquement pour l'électronique de contrôle
CN104791270A (zh) * 2015-03-01 2015-07-22 张宏松 一种纸管打腊机干燥风扇
CN112780599A (zh) * 2020-12-31 2021-05-11 广东美的厨房电器制造有限公司 离心风机以及烹饪器具
DE102020200864A1 (de) 2020-01-24 2021-07-29 Wilhelm Bruckbauer Dunstabzugsvorrichtung zum Abzug von Kochdünsten nach unten
EP3961043A1 (fr) * 2019-04-25 2022-03-02 Mitsubishi Electric Corporation Turbine, soufflante à pales multiples et dispositif de conditionnement d'air

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63148595A (ja) 1986-12-11 1988-06-21 松下電器産業株式会社 加熱調理装置
US5403163A (en) 1990-08-20 1995-04-04 Molded Products Company Motor mount for blower housing
CN101012945A (zh) 2006-10-16 2007-08-08 何维斌 一种用于酒店餐饮业及家庭厨房的卫生、防火型油烟净化机
TWI650487B (zh) 2018-03-08 2019-02-11 建準電機工業股份有限公司 風扇

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2833186Y (zh) * 2005-09-12 2006-11-01 余名声 空气调节装置之送风机构成
EP2653729A1 (fr) * 2012-04-20 2013-10-23 ebm-papst Mulfingen GmbH & Co. KG Ventilateur radial avec un carter auxiliaire protégé électromagnétiquement pour l'électronique de contrôle
CN104791270A (zh) * 2015-03-01 2015-07-22 张宏松 一种纸管打腊机干燥风扇
EP3961043A1 (fr) * 2019-04-25 2022-03-02 Mitsubishi Electric Corporation Turbine, soufflante à pales multiples et dispositif de conditionnement d'air
DE102020200864A1 (de) 2020-01-24 2021-07-29 Wilhelm Bruckbauer Dunstabzugsvorrichtung zum Abzug von Kochdünsten nach unten
CN112780599A (zh) * 2020-12-31 2021-05-11 广东美的厨房电器制造有限公司 离心风机以及烹饪器具

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