CN209743197U - Diagonal flow type ventilator - Google Patents
Diagonal flow type ventilator Download PDFInfo
- Publication number
- CN209743197U CN209743197U CN201920191766.0U CN201920191766U CN209743197U CN 209743197 U CN209743197 U CN 209743197U CN 201920191766 U CN201920191766 U CN 201920191766U CN 209743197 U CN209743197 U CN 209743197U
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- China
- Prior art keywords
- heating element
- baffle ring
- housing
- diagonal flow
- diagonal
- 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.)
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Classifications
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- 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
- F04D17/06—Helico-centrifugal 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
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
- F04D29/326—Rotors specially for elastic fluids for axial flow pumps for axial flow fans comprising a rotating shroud
-
- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/522—Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid 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
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
- F04D29/584—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps cooling or heating the machine
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a diagonal flow fan (1), be in including motor (10), casing (11) and holding casing (11) is inside and can by motor (10) driven diagonal flow impeller (12), the produced diagonal flow of diagonal flow impeller during operation passes through inner wall (111) of casing (11) guide and trun into axial flow direction, wherein, diagonal flow impeller (12) have along circumference distribution impeller blade (121) and surround along circumference impeller blade's (121) fender ring (122), and diagonal flow fan (1) further has heating element (13), heating element is in inner wall (111) of casing (11) with in the air gap between the lateral surface of fender ring (122) the next-door neighbour keep off ring (122) orientation. The utility model provides a diagonal flow fan also can use under the lower temperature.
Description
Technical Field
The utility model relates to an axial compact diagonal flow fan with heating element.
Background
Diagonal fans and their use are generally known from the prior art, for example from DE 102014210373 a 1.
Diagonal fans have high requirements for air performance at high back pressures (gegendry) and small installation spaces, for example, when used in cooling technology or range hoods. In particular, in cooling technology, icing of the components of the diagonal fan may occur due to cold ambient temperatures and due to cold air temperatures of the air passing through the diagonal fan, and may result in the formation of, for example, an ice layer on the impeller of the diagonal fan or between the diagonal impeller and the inlet nozzle feeding the air. This can adversely affect the efficiency of the diagonal fan and increase the noise emission of the diagonal fan. Such ice layers can also lock the diagonal fan completely.
SUMMERY OF THE UTILITY MODEL
It is therefore an object of the present invention to overcome the above disadvantages and to provide a diagonal flow fan which can be used at lower temperatures.
this object is achieved by the following means.
A diagonal flow fan, wherein the diagonal flow fan comprises an electric motor, a housing and a diagonal flow impeller which is accommodated in the housing and can be driven by the electric motor and which, in operation, generates a diagonal flow which is guided via an inner wall of the housing and diverted into an axial flow direction, wherein the diagonal flow impeller has circumferentially distributed impeller blades and a baffle ring which circumferentially surrounds the impeller blades, and wherein the diagonal flow fan further has a heating element which is oriented next to the baffle ring in an air gap between the inner wall of the housing and an outer side of the baffle ring.
Preferably, the diagonal flow fan further comprises: an inlet nozzle arranged on the housing on the suction side and extending axially into the baffle ring, wherein the inlet nozzle partially overlaps the baffle ring as seen in a radial cross-section and forms a nozzle gap between the overlapping portions of the baffle ring and the inlet nozzle.
Preferably, the heating element overlaps the nozzle gap formed by the baffle ring and the inlet nozzle, as seen in radial cross-section.
Preferably, the heating element circumferentially surrounds the baffle ring.
Preferably, the heating element is in the form of a strip, and a width of the heating element in the axial direction extends more than a height of the heating element in the radial direction.
Preferably, the heating element may be electrically heated.
Preferably, the inlet nozzle, the housing and the baffle ring define a cavity circumferentially surrounding the baffle ring, the heating element being disposed in the cavity.
Preferably, an insulating layer is provided between the housing and the heating element for thermally insulating the housing from the heating element.
Preferably, the impeller blades are integrally formed with the slinger.
Preferably, the baffle ring forms two axially extending ring lips on the suction side which meet on the discharge side to form a ring wall.
preferably, the baffle ring has a flow cross section which is radially outwardly widened in the axial flow direction and which is directed toward the inner wall of the housing.
Preferably, at least one radially extending mounting stop is provided on the inner wall of the housing, on which mounting stop the heating element can be arranged in a predetermined axial position.
Preferably, the housing forms a mounting ring extending circumferentially around the baffle ring, an inner surface of the mounting ring directed toward the baffle ring is at a constant distance from the baffle ring in the radial direction, and the heating element is fixed on the inner surface of the mounting ring at a constant distance from the baffle ring in the radial direction.
preferably, the heating element is insertable into the housing on the suction side and is fixable on a portion of the inner wall of the housing adjacent to the baffle ring.
Preferably, the heating element is fixed to the housing.
The utility model provides a diagonal flow fan, be in including motor, casing and holding the casing is inside and can by motor drive's diagonal flow impeller. The oblique flow generated by the oblique flow type impeller during working is guided by the inner wall of the shell and is converted into the axial flow direction. The diagonal-flow impeller has circumferentially distributed impeller blades and a baffle ring circumferentially surrounding the impeller blades. The diagonal fan also has a heating element, which is oriented in the air gap between the inner wall of the housing and the outer side of the baffle ring, in the immediate vicinity of the baffle ring. Preferably, the heating element is fixed to and surrounded by the housing.
by means of the heating element, the baffle ring can be heated, for example by means of heat radiation emitted directly from the heating element to the baffle ring, in order in particular to prevent the formation of an ice layer on the baffle ring. Additionally or alternatively, the heating element may also heat the baffle ring by thermal convection and air flowing over the heating element. Furthermore, the impeller blades connected to the baffle ring or the entire diagonal flow impeller can also be heated by the baffle ring and are preferably kept free from ice.
The utility model discloses an advantageous scheme further provides: the diagonal fan further comprises an inlet nozzle which is arranged on the suction side on the housing and extends axially into the baffle ring, so that, viewed in radial section, the inlet nozzle partially overlaps the baffle ring. A nozzle gap is formed between the baffle ring and the overlapping portion of the inlet nozzle. The rotation of the baffle ring relative to the preferably stationary inlet nozzle is achieved or not impeded by the nozzle gap or the radial distance between the overlapping parts of the baffle ring and the inlet nozzle. However, it is also possible that an ice layer forms at the overlapping portion of the baffle ring and the inlet nozzle, which ice layer can close the nozzle gap and hinder or prevent the baffle ring from rotating relative to the inlet nozzle. Flow can also be adversely affected.
Thus, the heating element also heats the overlapping region of the baffle ring and the inlet nozzle or the nozzle gap and prevents icing. For this purpose, a particularly advantageous further development of the diagonal fan provides: the heating element overlaps the nozzle gap formed by the baffle ring and the inlet nozzle, as seen in radial section, or is arranged on the inner wall of the housing at the level of the nozzle gap. In this way, for example, the heat radiation emitted from the heating element can act directly on the overlapping parts of the baffle ring and the inlet nozzle and heat both these parts and the nozzle gap between these parts.
In order to prevent icing uniformly or to de-ice the diagonal flow impeller, a likewise advantageous solution provides: the heating element circumferentially surrounds the baffle ring. The heating element preferably completely surrounds the baffle ring in the circumferential direction.
In an advantageous embodiment of the diagonal fan, the heating element is strip-shaped, wherein the width of the heating element in the axial direction of the diagonal fan or diagonal impeller extends over a greater height than the height of the heating element in the radial direction of the diagonal fan or diagonal impeller. By means of the flat band-shaped design of the heating element, it is preferred to heat uniformly not only the narrow section, but also the radially outer surface of the baffle ring.
in a further advantageous embodiment, the heating element can be electrically heated. The heating element is preferably formed by several parallel electrically energized heating wires which radiate and/or convectively, in particular in the direction of the baffle ring, the heat generated by the heating wires. Alternatively, one or several heating strips or flat heating elements can also be used as heating elements.
in an alternative advantageous embodiment, the diagonal fan is further arranged as follows: the inlet nozzle, the housing, and the baffle ring define a cavity circumferentially surrounding the baffle ring, the heating element being disposed in the cavity. The air flow generated by the diagonal flow fan can circulate in the cavity formed in the above-described manner. Preferably, the air flow fed by the main flow flows into the cavity at the air gap between the baffle ring and the inner wall of the housing and out of the cavity through the nozzle gap. Wherein the air flow flows through the heating element in the cavity, absorbs heat from the heating element by thermal convection and releases this heat onto the baffle ring and/or the inlet nozzle. If the air flow heated by the heating element also passes through the nozzle gap between the inlet nozzle and the overlapping portion of the baffle ring, icing of the nozzle gap and the air gap can be prevented.
In order to prevent or minimize the heat transfer from the heating element to the housing, another solution proposes: between the housing and the heating element, a thermally insulating layer is provided for thermally insulating the housing from the heating element, which insulating layer is formed, for example, by an aluminum foil arranged over the entire surface on the side of the heating element facing the housing inner wall.
it is also advantageous: in another aspect of the present invention, the impeller blade and the baffle ring are integrally formed.
In an embodiment of the diagonal fan, the baffle ring further forms two axially extending ring lips (ringlips) on the suction side, which meet on the discharge side to form a ring wall or cover plate. The annular lips can be connected to one another, in particular, by radially extending webs.
In a further embodiment, the baffle ring has a flow cross section which is radially outwardly expanded in the axial flow direction and which is directed toward the inner wall of the housing.
In an equally advantageous embodiment, in order to simplify the installation of the heating element in the housing, at least one radially extending installation stop is provided on the inner wall of the housing, on which installation stop the heating element can be arranged in a predetermined axial position. The housing may be integrally provided with a mounting stop. The mounting stop can be designed, for example, as a circumferentially extending step on which the heating element can be placed.
In particular for housings which, viewed from an axial top view, are angular or at least not circular, the solution of the invention further provides: the housing forms a mounting ring extending circumferentially around the retainer ring, the inner surface of the mounting ring directed towards the retainer ring being at a constant distance from the retainer ring in the radial direction. The mounting ring can be connected to the rest of the housing, for example by means of a web, or can be formed by the housing. The heating element is fixed on the inner surface of the mounting ring at a constant distance in the radial direction from the baffle ring.
Also in order to simplify the installation of the heating element, the following further advantageously provides: the heating element may be inserted into the housing on the suction side and may be fixed on a portion of the inner wall of the housing adjacent to the baffle ring. For this purpose, the housing is in particular of a design which can be opened on the suction side, for example by removing the inlet nozzle.
for fastening the heating element to the housing, at least in one embodiment the following is advantageously provided: the heating element is fixed to the housing. The heating element can be glued, clipped or screwed to the housing, for example, or can be fastened to the housing by means of a spring element.
The utility model provides a diagonal flow type ventilation blower that also can use under the lower temperature.
Drawings
The features relating to other advantageous developments of the invention will be explained in more detail below with reference to the drawings and in connection with preferred embodiments of the invention. Wherein:
Fig. 1 is a sectional view of a diagonal flow fan.
Detailed Description
Fig. 1 is illustrative and schematic, and shows a radial section of the diagonal fan 1 that bisects the diagonal fan 1 at its rotational axis.
The diagonal fan 1 is shown in an assembled state in fig. 1. The mixed-flow impeller 12 includes a plurality of impeller blades 121 extending radially outward from an axially open hub 125, which are surrounded by a shroud 122. The baffle ring 122 has a flow cross section which is radially outwardly expanded in the axial flow direction and which is directed toward the inner wall 111 of the housing 11. The electric motor 10 is inserted into the axially open hub 125 of the mixed-flow impeller 12 and is completely surrounded by the hub. The electric motor 10 extends in the axial direction (i.e. along the axis of rotation R) as far as the axially open hub 125. A diagonal flow impeller 12 driven by a motor 10 is disposed inside a housing 11 forming a flow passage. In operation, the fan 1 sucks in air in the axial direction from the suction side a via the impeller 12 and conveys it obliquely (i.e. at a predetermined discharge angle to the axis of rotation R) in the direction of the inner wall 111 of the housing 11 and discharges it again in the axial direction on its discharge side B. On the intake side, the inlet nozzle 14 is arranged on the housing 11 and extends with its end, which preferably has the smallest flow cross section, from the intake side a in the direction of the discharge side B into the region of the mixed-flow impeller 12, so that, viewed in radial section, the baffle ring 122 overlaps the end of the inlet nozzle 14.
on the suction side, the inlet nozzle 14 rests against the housing 11 or its inner wall 111 and extends to the baffle ring 122 or to the inner wall of the baffle ring 122 facing away from the housing 11. Since the end of the inlet nozzle 14 overlaps the baffle ring 122, a narrow nozzle gap 16 is formed in the overlap region between the two, by means of which the mixed-flow impeller 12 with its baffle ring 122 can be rotated about the axis of rotation R relative to the inlet nozzle 14. The slinger 122 expands in a radial direction orthogonal to the axis of rotation R from the suction side a to the discharge side B such that an annular wall 124 or cover plate of the slinger 122 is adjacent the inner wall 111 of the housing 11 and defines a narrow air gap therebetween.
The housing 11, the inlet nozzle 14 and the baffle ring 122 together define a cavity 15 extending circumferentially around the baffle ring 122, which is opened only by the narrow nozzle gap 16 between the baffle ring 122 and the inlet nozzle 14 and the narrow air gap between the baffle ring 122 and the housing 11.
If the diagonal flow fan 1 is used at a cold ambient temperature or is used to draw in cold air, the following situations may occur: in particular, an ice layer forms on the baffle ring 122, or the nozzle gap 16 between the baffle ring 122 and the inlet nozzle 14 freezes, so that the rotation of the diagonal flow impeller 12 and the baffle ring 122 is prevented or at least hindered, and the noise generated during the operation of the diagonal flow fan 1 increases. In order to prevent the formation of ice layers, the embodiment shown in fig. 1 provides a band-shaped heating element 13 in the cavity 15, which heating element is oriented next to the retaining ring 122 in the air gap between the inner wall 111 of the housing 11 and the outer side of the retaining ring 122. Between the baffle ring 122 and the heating element 13, only air is present in the cavity 15, and no other elements capable of isolating the heat radiation emitted from the heating element 13 to the baffle ring 122 are present. Furthermore, the heating element 13 may be electrically heated. By means of the mounting ring 112, the heating element 13 extending circumferentially around the baffle ring 122 is at a uniform constant distance radially from the baffle ring 122, so that the baffle ring can be heated uniformly in the circumferential direction by the heating element 13. In addition to the heat radiation emitted from the heating element 13 to the baffle ring 122, air is also drawn into the cavity 15 through the air gap between the baffle ring 122 and the housing 11 on the outlet side B of the baffle ring, which air flows out through the nozzle gap 16. By means of this flow circulating in the cavity 15, the guide air flows through or along the heating element 13, so that this portion of air absorbs heat at the heating element 13 and releases heat at least at the nozzle gap 16 onto the baffle ring 122 and the inlet nozzle 14. Such convection or thermal convection is therefore used in particular to heat the air gap and keep it free of ice. In particular, the circulation is driven by the suction action of the rotating diagonal flow impeller 12 from the nozzle gap. The water produced by the ice melting after the baffle ring 122 and the impeller blades 121 have been heated can exit the diagonal fan 1 with the air flow on the discharge side B together with the air flow through the diagonal fan 1.
Claims (15)
1. A diagonal flow ventilator (1), characterized in that the diagonal flow ventilator (1) comprises an electric motor (10), a housing (11) and a diagonal flow impeller (12) accommodated inside the housing (11) and drivable by the electric motor (10), the diagonal flow impeller being operative to generate an oblique flow which is directed by an inner wall (111) of the housing (11) into an axial flow direction, wherein,
the diagonal flow impeller (12) has impeller blades (121) distributed in the circumferential direction and a baffle ring (122) surrounding the impeller blades (121) in the circumferential direction, and
the diagonal fan (1) further comprises a heating element (13) which is oriented in the air gap between the inner wall (111) of the housing (11) and the outer side of the baffle ring (122) in the immediate vicinity of the baffle ring (122).
2. A diagonal flow fan in accordance with claim 1, further comprising:
An inlet nozzle (14) arranged on the housing (11) on the suction side and extending axially into the baffle ring (122), wherein,
the inlet nozzle (14) partially overlaps the baffle ring (122) when viewed in a radial cross-section, and
A nozzle gap (16) is formed between the baffle ring (122) and the overlapping portion of the inlet nozzle (14).
3. A diagonal flow fan according to claim 2,
The heating element (13) overlaps the nozzle gap (16) formed by the baffle ring (122) and the inlet nozzle (14) as seen in a radial cross-section.
4. a diagonal flow fan according to any one of claims 1 to 3,
The heating element (13) circumferentially surrounds the baffle ring (122).
5. a diagonal flow fan according to any one of claims 1 to 3,
The heating element (13) is strip-shaped, and the width extension of the heating element along the axial direction is larger than the height extension of the heating element in the radial direction.
6. A diagonal flow fan according to any one of claims 1 to 3,
The heating element (13) can be electrically heated.
7. A diagonal flow fan according to claim 2 or 3,
The inlet nozzle (14), the housing (11) and the baffle ring (122) define a cavity (15) circumferentially surrounding the baffle ring (122), the heating element (13) being arranged in the cavity.
8. A diagonal flow fan according to any one of claims 1 to 3,
An insulating layer for thermally insulating the housing (11) from the heating element (13) is arranged between the housing (11) and the heating element (13).
9. a diagonal flow fan according to any one of claims 1 to 3,
The impeller blades (121) and the baffle ring (122) are integrally formed.
10. A diagonal flow fan according to any one of claims 1 to 3,
The baffle ring (122) forms two axially extending ring lips (123) on the suction side, which meet on the discharge side to form a ring wall (124).
11. a diagonal flow fan according to any one of claims 1 to 3,
the baffle ring (122) has a flow cross section which is radially outwardly expanded in the axial flow direction and is directed toward the inner wall (111) of the housing (11).
12. A diagonal flow fan according to any one of claims 1 to 3,
At least one radially extending mounting stop is provided on the inner wall (111) of the housing (11), on which mounting stop the heating element (13) can be arranged in a predetermined axial position.
13. A diagonal flow fan according to any one of claims 1 to 3,
the housing (11) forms a mounting ring (112) which extends in the circumferential direction around the retaining ring (122), the inner surface of which, which faces the retaining ring (122), is at a constant distance from the retaining ring (122) in the radial direction, and
The heating element (13) is fixed on the inner surface of the mounting ring (112) in a radial direction at a constant distance from the baffle ring (122).
14. A diagonal flow fan according to any one of claims 1 to 3,
The heating element (13) can be inserted into the housing (11) on the suction side and can be fixed to a portion of the inner wall (111) of the housing (11) adjacent to the baffle ring (122).
15. A diagonal flow fan according to any one of claims 1 to 3,
The heating element (13) is fixed to the housing (11).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018128823.9 | 2018-11-16 | ||
| DE102018128823.9A DE102018128823A1 (en) | 2018-11-16 | 2018-11-16 | Diagonal fan with heating element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209743197U true CN209743197U (en) | 2019-12-06 |
Family
ID=68242666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920191766.0U Active CN209743197U (en) | 2018-11-16 | 2019-02-12 | Diagonal flow type ventilator |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN209743197U (en) |
| DE (1) | DE102018128823A1 (en) |
| WO (1) | WO2020099039A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113309718A (en) * | 2020-02-26 | 2021-08-27 | 依必安派特穆尔芬根有限两合公司 | Fan blade for an axial or diagonal fan with a balancing ring |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH426083A (en) * | 1965-05-11 | 1966-12-15 | Metallbau Ag | Heating arrangement on radial fan |
| DE3103427A1 (en) * | 1981-02-02 | 1982-08-26 | Petz Electro, 3185 Schmitten | Fan heater with an axial blower |
| JP2701604B2 (en) * | 1991-08-02 | 1998-01-21 | ダイキン工業株式会社 | Air conditioner |
| DE102010032168A1 (en) * | 2010-07-23 | 2012-01-26 | Ruck Ventilatoren Gmbh | Diagonal fan |
| DE102012202065B3 (en) * | 2012-02-10 | 2013-05-29 | E.G.O. Elektro-Gerätebau GmbH | Pump and method for heating a pump |
| DE102012108449A1 (en) * | 2012-09-11 | 2014-03-13 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Wall ring of a fan with heating element |
| DE102012109546A1 (en) * | 2012-10-08 | 2014-04-10 | Ebm-Papst Mulfingen Gmbh & Co. Kg | "Wall ring for an axial fan" |
| US20150104159A1 (en) * | 2013-10-16 | 2015-04-16 | Restless Noggins Design, Llc | Heating and cooling apparatus |
| DE102014210373A1 (en) | 2014-06-02 | 2015-12-03 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Radial or diagonal fan |
| DE102016122533A1 (en) * | 2016-11-22 | 2018-05-24 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Diagonal fan |
| DE202016106538U1 (en) * | 2016-11-22 | 2016-12-02 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Diagonal fan |
-
2018
- 2018-11-16 DE DE102018128823.9A patent/DE102018128823A1/en active Pending
-
2019
- 2019-02-12 CN CN201920191766.0U patent/CN209743197U/en active Active
- 2019-10-11 WO PCT/EP2019/077581 patent/WO2020099039A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113309718A (en) * | 2020-02-26 | 2021-08-27 | 依必安派特穆尔芬根有限两合公司 | Fan blade for an axial or diagonal fan with a balancing ring |
| CN113309718B (en) * | 2020-02-26 | 2023-09-29 | 依必安派特穆尔芬根有限两合公司 | Ventilator blade of axial-flow or diagonal-flow ventilator with balancing ring |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102018128823A1 (en) | 2020-05-20 |
| WO2020099039A1 (en) | 2020-05-22 |
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