EP3751151B1 - Stiffened fan housing part for use in a gas blower - Google Patents

Stiffened fan housing part for use in a gas blower Download PDF

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Publication number
EP3751151B1
EP3751151B1 EP20170151.3A EP20170151A EP3751151B1 EP 3751151 B1 EP3751151 B1 EP 3751151B1 EP 20170151 A EP20170151 A EP 20170151A EP 3751151 B1 EP3751151 B1 EP 3751151B1
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EP
European Patent Office
Prior art keywords
housing component
ribs
component according
blower housing
tangential
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Application number
EP20170151.3A
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German (de)
French (fr)
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EP3751151A1 (en
Inventor
Christian PETRYSZAK
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Ebm Papst Landshut GmbH
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Ebm Papst Landshut GmbH
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Publication of EP3751151A1 publication Critical patent/EP3751151A1/en
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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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/626—Mounting or removal of fans
    • 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
    • F04D29/403—Casings; Connections of working fluid 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226—Fan casings
    • 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
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/441—Fluid-guiding means, e.g. diffusers 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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal 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
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2210/00—Working fluids
    • F05D2210/10—Kind or type
    • F05D2210/12—Kind or type gaseous, i.e. compressible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/10—Stators
    • F05D2240/14—Casings or housings protecting or supporting assemblies within

Definitions

  • the invention relates to a fan housing part with a housing body and a fastening flange which extends radially outwards from the housing body and on which several fastening points for fastening the fan housing part to a gas fan are arranged distributed in the circumferential direction.
  • the invention is therefore based on the object of providing a fan housing part for a gas fan whose flexural rigidity is increased.
  • a fan housing part is proposed with a housing body and a fastening flange which extends radially outwards from the housing body and on which several fastening points for fastening the fan housing part are arranged distributed in the circumferential direction.
  • Radial ribs extending radially in a straight line along the fastening flange are formed between the housing body and the fastening points. These radial ribs are intersected by tangential ribs extending along the mounting flange, which in turn each extend between two of the mounting points tangent to the housing body and connect the two mounting points respectively.
  • a radial rib is assigned to each attachment point to increase radial rigidity.
  • Screw-on points formed from material-reinforced through-holes in the fastening flange for receiving screws preferably serve as fastening points.
  • the ribs are preferably plate-shaped or disc-shaped.
  • the radial ribs run radially outwards from the lateral surface of the housing body to the respective fastening point and engage on a side directed radially inwards it to the respective attachment point.
  • the tangential ribs are radially spaced from the housing body and engage in particular on a side directed in the circumferential direction at the respective attachment points.
  • the tangential ribs extend tangentially to and in sections around the housing body as seen in an axial plan view, i.e. the tangential ribs run tangentially from one attachment point towards the housing body and then extend tangentially outwards away from the housing body towards the next attachment point.
  • the tangential ribs run tangentially from one attachment point towards the housing body and then extend tangentially outwards away from the housing body towards the next attachment point.
  • two attachment points are reinforced by at least one tangential rib.
  • each of the radial ribs is crossed by at least one tangential rib.
  • individual or all radial ribs are crossed by several tangential ribs.
  • an exemplary embodiment of the fan housing part is characterized in that the radial ribs and the tangential ribs alternately penetrate one another, viewed in the circumferential direction.
  • the radial rib partly runs through the tangential rib and partly the tangential rib through the radial rib, so that one of the two ribs extends over the other of the ribs in the axial height at the crossing point.
  • an embodiment is favorable in which at least three fastening points are provided, which are arranged at a distance of 120° from one another in the circumferential direction on a radial outer edge of the fastening flange.
  • a development also provides that two groups of attachment points, each with three, are provided in an arrangement spaced apart by 120° in the circumferential direction. So it can Fan housing part are fixed user-specific in two rotated in the circumferential direction mounting positions on the gas blower.
  • An embodiment is advantageous in which two of the adjacent fastening points are arranged at an angular distance of 30° from one another in the circumferential direction. There are thus a total of six attachment points, of which the adjacent ones are at an angular distance of 30°, with the two groups formed by three attachment points each defining attachment points at an angular distance of 120°.
  • blower housing part also provides that the tangential ribs also intersect.
  • the tangential ribs also intersect.
  • each of the radial ribs is crossed by at least one tangential rib.
  • the object is achieved in a particularly advantageous manner in that an axial height of the radial ribs steadily decreases as they progress radially outward.
  • the tangential ribs advantageously have an axial height h which is in a ratio to a direct distance b between two attachment points, that is 0.2 ⁇ h/b ⁇ 0.4.
  • the tangential ribs have a course that increases and then decreases with respect to their axial height between two attachment points.
  • a vertex determining the transition between the ascending and descending course has a radius R which is in relation to the direct distance b between two attachment points, so that 0.1 ⁇ R/b ⁇ 0.3 applies.
  • the blower housing part described here is preferably designed as a diffuser housing for fastening arrangement on a gas blower, the housing body having a diffuser with a suction opening and a flow outlet provided on the mounting flange for inflow into the gas fan.
  • a fuel gas connection is provided on the housing body.
  • FIG 1 is a gas blower 100 with a blower housing part 1 fixed to it on the intake side, designed as a diffuser housing with an intake opening 14 for ambient air and a fuel gas connection 9.
  • the fan housing part 1 shown comprises the essentially cylindrical housing body 2 which is arranged on an axial end side on a fastening flange 3, the fastening flange 3 extending over the housing body 2 radially outwards.
  • the fastening flange 3 is the component with which the fan housing part 1 is fixed to the gas fan 100 by means of screws 7 via the fastening points 4 designed as screwing points.
  • two groups are provided on the fastening flange 3, each with three fastening points 4, which are each spaced apart at an angle of 120° in the circumferential direction.
  • the attachment points that are immediately adjacent to each other 4 are in turn spaced at an angle of 30°, so that two attachment positions of the fan housing part 1 rotated by 30° on the gas fan 100 result and can be realized.
  • a radial rib 5 extends in a straight line radially outwards from the lateral surface 8 of the housing body 2 to each of the attachment points 4 .
  • the tangential ribs 6 also run between the respective adjacent attachment points 4 of the two groups, each with three attachment points 4, and cross the radial ribs 5.
  • the radial ribs 5 and the tangential ribs 6 penetrate each other alternately and end at the respective material reinforcement 24 of the fastening points 4 figure 2 clearly shown that the tangential ribs 6 also cross each other.
  • the resulting cross ribbing offers high rigidity in the radial and tangential direction.
  • the tangential ribs 6 are spaced radially from the housing body 3 and run tangentially towards the housing body 3 from the respective fastening point 4 .
  • the course of the tangential ribs 6 between two attachment points 4 is arcuate with a course that rises and then falls with respect to their axial height.
  • R the ratio is set in a range of 0.1-0.3.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Description

Die Erfindung betrifft ein Gebläsegehäuseteil mit einem Gehäusekörper und einem sich von dem Gehäusekörper nach radial außen erstreckenden Befestigungsflansch, an dem in Umfangsrichtung verteilt mehrere Befestigungspunkte zur Befestigung des Gebläsegehäuseteils an einem Gasgebläse angeordnet sind.The invention relates to a fan housing part with a housing body and a fastening flange which extends radially outwards from the housing body and on which several fastening points for fastening the fan housing part to a gas fan are arranged distributed in the circumferential direction.

Entsprechende Gebläsegehäuseteil mit Gasanschluss sind aus dem Stand der Technik bekannt und werden zunehmend aus Kunststoff gefertigt. Dabei ist sicherzustellen, dass die Steifigkeit ausreichend hoch und der Materialeinsatz gering ist.Corresponding fan housing parts with a gas connection are known from the prior art and are increasingly being made of plastic. It must be ensured that the rigidity is sufficiently high and the use of materials is low.

Druckschriftlicher Stand der Technik im vorliegenden technischen Gebiet, jedoch betreffend ein Motorgehäuseteil, ist in Dokument US 2002/023997 A1 offenbart.Documented prior art in the present technical field, but relating to a motor housing part, is in document U.S. 2002/023997 A1 disclosed.

Der Erfindung liegt deshalb die Aufgabe zugrunde, ein Gebläsegehäuseteil für ein Gasgebläse bereit zu stellen, dessen Biegesteifigkeit erhöht ist.The invention is therefore based on the object of providing a fan housing part for a gas fan whose flexural rigidity is increased.

Diese Aufgabe wird durch die Merkmalskombination gemäß Patentanspruch 1 gelöst.This object is achieved by the combination of features according to claim 1.

Erfindungsgemäß wird ein Gebläsegehäuseteil mit einem Gehäusekörper und einem sich von dem Gehäusekörper nach radial außen erstreckenden Befestigungsflansch vorgeschlagen, an dem in Umfangsrichtung verteilt mehrere Befestigungspunkte zur Befestigung des Gebläsegehäuseteils angeordnet sind. Zwischen dem Gehäusekörper und den Befestigungspunkten sind jeweils sich radial geradlinig entlang des Befestigungsflansches erstreckende Radialrippen ausgebildet. Diese Radialrippen werden von sich entlang des Befestigungsflansches erstreckenden Tangentialrippen gekreuzt, die sich wiederum jeweils zwischen zwei der Befestigungspunkte tangential zu dem Gehäusekörper erstrecken und die zwei Befestigungspunkte jeweils verbinden.According to the invention, a fan housing part is proposed with a housing body and a fastening flange which extends radially outwards from the housing body and on which several fastening points for fastening the fan housing part are arranged distributed in the circumferential direction. Radial ribs extending radially in a straight line along the fastening flange are formed between the housing body and the fastening points. These radial ribs are intersected by tangential ribs extending along the mounting flange, which in turn each extend between two of the mounting points tangent to the housing body and connect the two mounting points respectively.

Jedem Befestigungspunkt wird eine Radialrippe zugeordnet, um die radiale Steifigkeit zu erhöhen. Zudem erfolgt eine tangentiale Steifigkeitserhöhung durch die Tangentialrippen, so dass im Ergebnis eine um den Gehäusekörper an dem Befestigungsflansch eine biegesteifigkeitsgesteigerte Kreuzverrippung gebildet wird. Als Befestigungspunkte dienen vorzugsweise Anschraubpunkte gebildet aus materialverstärkten Durchgangslöchern im Befestigungsflansch zur Aufnahme von Schrauben. Die Rippen sind vorzugsweise plattenförmig bzw. scheibenförmig.A radial rib is assigned to each attachment point to increase radial rigidity. In addition, there is a tangential increase in rigidity due to the tangential ribs, so that as a result cross ribbing with increased bending rigidity is formed around the housing body on the fastening flange. Screw-on points formed from material-reinforced through-holes in the fastening flange for receiving screws preferably serve as fastening points. The ribs are preferably plate-shaped or disc-shaped.

Die Radialrippen verlaufen in einer bevorzugten Ausführungsform von der Mantelfläche des Gehäusekörpers bis zu dem jeweiligen Befestigungspunkt nach radial außen und greifen an einer zur radial nach innen gerichteten Seite es jeweiligen Befestigungspunktes an. Die Tangentialrippen sind dabei radial beabstandet zu dem Gehäusekörper und greifen insbesondere an einer in Umfangsrichtung gerichteten Seite an den jeweiligen Befestigungspunkten an.In a preferred embodiment, the radial ribs run radially outwards from the lateral surface of the housing body to the respective fastening point and engage on a side directed radially inwards it to the respective attachment point. The tangential ribs are radially spaced from the housing body and engage in particular on a side directed in the circumferential direction at the respective attachment points.

Ferner erstrecken sich die Tangentialrippen in einer axialen Draufsicht gesehen tangential zu dem und abschnittsweise um den Gehäusekörper, d.h. die Tangentialrippen verlaufen von dem einen Befestigungspunkt auf den Gehäusekörper tangential zu und erstreckt sich anschließend tangential nach außen von dem Gehäusekörper weg hin zu dem nächsten Befestigungspunkt. Somit werden immer zwei Befestigungspunkte durch mindestens eine Tangentialrippe versteift.Furthermore, the tangential ribs extend tangentially to and in sections around the housing body as seen in an axial plan view, i.e. the tangential ribs run tangentially from one attachment point towards the housing body and then extend tangentially outwards away from the housing body towards the next attachment point. Thus, always two attachment points are reinforced by at least one tangential rib.

In einer vorteilhaften Ausführung ist vorgesehen, dass jede der Radialrippen von mindestens einer Tangentialrippe gekreuzt wird. Es ist jedoch auch umfasst, dass einzelne oder alle Radialrippen von mehreren Tangentialrippen gekreuzt werden.In an advantageous embodiment, it is provided that each of the radial ribs is crossed by at least one tangential rib. However, it is also covered that individual or all radial ribs are crossed by several tangential ribs.

Ferner ist ein Ausführungsbeispiel des Gebläsegehäuseteils dadurch gekennzeichnet, dass die Radialrippen und die Tangentialrippen sich in Umfangsrichtung gesehen abwechselnd gegenseitig durchdringen. An den Kreuzungspunkten von Radialrippen und Tangentialrippen verläuft teils die Radialrippe durch die Tangentialrippe, teils die Tangentialrippe durch die Radialrippe hindurch, so dass eine der beiden Rippen die jeweils andere der Rippen in axialer Höhe am Kreuzungspunkt überstreckt.Furthermore, an exemplary embodiment of the fan housing part is characterized in that the radial ribs and the tangential ribs alternately penetrate one another, viewed in the circumferential direction. At the crossing points of radial ribs and tangential ribs, the radial rib partly runs through the tangential rib and partly the tangential rib through the radial rib, so that one of the two ribs extends over the other of the ribs in the axial height at the crossing point.

Ferner ist eine Ausführung günstig, bei der mindestens drei Befestigungspunkte vorgesehen sind, die in Umfangsrichtung in einem 120°-Abstand zueinander an einem radialen Außenrand des Befestigungsflansches angeordnet sind. Eine Weiterbildung sieht zudem vor, dass zwei Gruppen von Befestigungspunkten mit jeweils drei in in Umfangsrichtung um 120° beabstandeter Anordnung vorgesehen sind. Somit kann das Gebläsegehäuseteil in zwei in Umfangsrichtung gedrehten Befestigungspositionen an dem Gasgebläse anwenderspezifisch fixiert werden. Dabei ist eine Ausführung vorteilhaft, bei der jeweils zwei der benachbarten Befestigungspunkte in einem Winkelabstand von 30° in Umfangsrichtung zueinander angeordnet sind. Insgesamt ergeben sich somit sechs Befestigungspunkte von denen die jeweils benachbarten einen Winkelabstand von 30° aufweisen, wobei die zwei durch jeweils drei Befestigungspunkte gebildeten Gruppen Befestigungspunkte im 120°-Winkelabstand bestimmen.Furthermore, an embodiment is favorable in which at least three fastening points are provided, which are arranged at a distance of 120° from one another in the circumferential direction on a radial outer edge of the fastening flange. A development also provides that two groups of attachment points, each with three, are provided in an arrangement spaced apart by 120° in the circumferential direction. So it can Fan housing part are fixed user-specific in two rotated in the circumferential direction mounting positions on the gas blower. An embodiment is advantageous in which two of the adjacent fastening points are arranged at an angular distance of 30° from one another in the circumferential direction. There are thus a total of six attachment points, of which the adjacent ones are at an angular distance of 30°, with the two groups formed by three attachment points each defining attachment points at an angular distance of 120°.

Eine Weiterbildung des Gebläsegehäuseteils sieht zudem vor, dass sich auch die Tangentialrippen kreuzen. Insbesondere bei einer Lösung mit zwei Gruppen und somit insgesamt sechs Befestigungspunkten erfolgt somit eine weitere Versteifung.A further development of the blower housing part also provides that the tangential ribs also intersect. In particular in the case of a solution with two groups and thus a total of six attachment points, there is further reinforcement.

Günstig ist ferner, dass bei dem Gebläsegehäuseteil jede der Radialrippen von mindestens einer Tangentialrippe gekreuzt wird.It is also favorable that in the fan housing part each of the radial ribs is crossed by at least one tangential rib.

Als geometrische Ausgestaltung wird die Aufgabe besonders vorteilhaft gelöst, indem sich eine axiale Höhe der Radialrippen im Verlauf nach radial außen stetig verringert. Die Tangentialrippen weisen günstigerweise eine axiale Höhe h auf, die in einem Verhältnis zu einem direkten Abstand b zweier Befestigungspunkte stehen, dass gilt 0,2≤h/b≤0,4. Ferner ist geometrisch von Vorteil, wenn die Tangentialrippen zwischen zwei Befestigungspunkten einen bezüglich ihrer axialen Höhe ansteigenden und anschließend abfallenden Verlauf aufweisen. Ein den Übergang zwischen dem ansteigenden und abfallenden Verlauf bestimmender Scheitelpunkt weist dabei einen Radius R auf, der im Verhältnis zu dem direkten Abstand b zweier Befestigungspunkte steht, so dass gilt 0,1≤R/b≤0,3.As a geometric configuration, the object is achieved in a particularly advantageous manner in that an axial height of the radial ribs steadily decreases as they progress radially outward. The tangential ribs advantageously have an axial height h which is in a ratio to a direct distance b between two attachment points, that is 0.2≦h/b≦0.4. Furthermore, it is geometrically advantageous if the tangential ribs have a course that increases and then decreases with respect to their axial height between two attachment points. A vertex determining the transition between the ascending and descending course has a radius R which is in relation to the direct distance b between two attachment points, so that 0.1≦R/b≦0.3 applies.

Das hier beschriebene Gebläsegehäuseteil ist vorzugsweise als Diffusorgehäuse zur befestigenden Anordnung an einem Gasgebläse ausgebildet, wobei der Gehäusekörper einen Diffusor mit einer Ansaugöffnung und einem an dem Befestigungsflansch vorgesehenen Strömungsausgang zur Einströmung in das Gasgebläse bildet. Zudem wird an dem Gehäusekörper ein Brenngasanschluss vorgesehen.The blower housing part described here is preferably designed as a diffuser housing for fastening arrangement on a gas blower, the housing body having a diffuser with a suction opening and a flow outlet provided on the mounting flange for inflow into the gas fan. In addition, a fuel gas connection is provided on the housing body.

Andere vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen gekennzeichnet bzw. werden nachstehend zusammen mit der Beschreibung der bevorzugten Ausführung der Erfindung anhand der Figuren näher dargestellt. Es zeigen:

Fig. 1
eine axiale Draufsicht auf ein Gasgebläse mit daran befestigtem Gebläsegehäuseteil,
Fig. 2
eine perspektivische Ansicht des Gebläsegehäuseteils aus Figur 1,
Fig. 3
eine Seitenansicht des Gebläsegehäuseteils aus Figur 2.
Other advantageous developments of the invention are characterized in the dependent claims or are presented in more detail below together with the description of the preferred embodiment of the invention with reference to the figures. Show it:
1
an axial plan view of a gas fan with attached fan housing part,
2
a perspective view of the fan housing part from Figure 1,
3
a side view of the fan housing part figure 2 .

In Figur 1 ist ein Gasgebläse 100 mit daran ansaugseitig fixiertem Gebläsegehäuseteil 1 ausgebildet als Diffusorgehäuse mit einer Ansaugöffnung 14 für Umgebungsluft und einem Brenngasanschluss 9.In figure 1 is a gas blower 100 with a blower housing part 1 fixed to it on the intake side, designed as a diffuser housing with an intake opening 14 for ambient air and a fuel gas connection 9.

Das in den Figuren 1 - 3 dargestellte Gebläsegehäuseteil 1 umfasst den im Wesentlichen zylindrischen Gehäusekörper 2 der auf einer axialen Endseite auf einem Befestigungsflansch 3 angeordnet ist, wobei der Befestigungsflansch 3 den Gehäusekörper 2 nach radial außen überstreckt. Der Befestigungsflansch 3 ist das Bauteil, mit dem das Gebläsegehäuseteil 1 an dem Gasgebläse 100 über die als Anschraubpunkte ausgebildeten Befestigungspunkte 4 mittels Schrauben 7 fixiert wird. In Umfangsrichtung verteilt sind an dem Befestigungsflansch 3 zwei Gruppen mit jeweils drei Befestigungspunkten 4 vorgesehen, die jeweils in Umfangsrichtung in einem Winkel von 120° beabstandet sind. Die aneinander unmittelbar angrenzenden Befestigungspunkte 4 sind wiederum in einem Winkel von 30° beabstandet, so dass sich zwei um 30° gedrehte Befestigungspositionen des Gebläsegehäuseteils 1 an dem Gasgebläse 100 ergeben und realisierbar sind.That in the Figures 1 - 3 The fan housing part 1 shown comprises the essentially cylindrical housing body 2 which is arranged on an axial end side on a fastening flange 3, the fastening flange 3 extending over the housing body 2 radially outwards. The fastening flange 3 is the component with which the fan housing part 1 is fixed to the gas fan 100 by means of screws 7 via the fastening points 4 designed as screwing points. Distributed in the circumferential direction, two groups are provided on the fastening flange 3, each with three fastening points 4, which are each spaced apart at an angle of 120° in the circumferential direction. The attachment points that are immediately adjacent to each other 4 are in turn spaced at an angle of 30°, so that two attachment positions of the fan housing part 1 rotated by 30° on the gas fan 100 result and can be realized.

Von der Mantelfläche 8 des Gehäusekörpers 2 erstreckt sich geradlinig nach radial auswärts zu jedem der Befestigungspunkte 4 eine Radialrippe 5. Zudem sind auch in Zwischenbereichen Radialrippen 5 vorgesehen, welche am radialen freien Umgebungsrand des Befestigungsflansches 3 enden. Zwischen den jeweils benachbarten Befestigungspunkten 4 der beiden Gruppen mit jeweils drei Befestigungspunkten 4 verlaufen zudem die Tangentialrippen 6 und kreuzen die Radialrippen 5. Wie in Figur 2 gut zu erkennen durchdringen sich die Radialrippen 5 und die Tangentialrippen 6 abwechselnd und enden an der jeweiligen Materialverstärkung 24 der Befestigungspunkte 4. Auch ist in Figur 2 deutlich dargestellt, dass sich die Tangentialrippen 6 untereinander ebenfalls kreuzen. Die hieraus gebildete Kreuzverrippung bietet eine hohe Steifigkeit in Radialrichtung und Tangentialrichtung.A radial rib 5 extends in a straight line radially outwards from the lateral surface 8 of the housing body 2 to each of the attachment points 4 . The tangential ribs 6 also run between the respective adjacent attachment points 4 of the two groups, each with three attachment points 4, and cross the radial ribs 5. As in FIG figure 2 clearly visible, the radial ribs 5 and the tangential ribs 6 penetrate each other alternately and end at the respective material reinforcement 24 of the fastening points 4 figure 2 clearly shown that the tangential ribs 6 also cross each other. The resulting cross ribbing offers high rigidity in the radial and tangential direction.

Die Tangentialrippen 6 sind von dem Gehäusekörper 3 radial beabstandet und verlaufen auf den Gehäusekörper 3 tangential von dem jeweiligen Befestigungspunkt 4 zu.The tangential ribs 6 are spaced radially from the housing body 3 and run tangentially towards the housing body 3 from the respective fastening point 4 .

Bezugnehmend auf Figur 3 sind die vorteilhaften geometrischen Details näher spezifiziert, wonach sich die axiale Höhe der Radialrippen 5 im Verlauf von der Mantelfläche 8 nach radial außen bis zu den Befestigungspunkten 4 stetig verringert. Die Tangentialrippen 6 weisen eine axiale Höhe h auf, die in einem Verhältnis dem direkten Abstand b zweier Befestigungspunkte 4 einer Gruppe stehen, dass gilt h/b=0,28. Das Verhältnis wird alternativ in einem Bereich von 0,2-0,4 festgelegt. Der Verlauf der Tangentialrippen 6 zwischen zwei Befestigungspunkten 4 ist gemäß der Seitenansicht bogenförmig mit einem bezüglich ihrer axialen Höhe ansteigenden und anschließend abfallenden Verlauf. Am Scheitelpunkt S liegt eine Radius R vor, der im Verhältnis zu dem direkten Abstand b zweier Befestigungspunkte 4 einer Gruppe steht, dass gilt R/b=0,2. Das Verhältnis wird alternativ in einem Bereich von 0,1-0,3 festgelegt.Referring to figure 3 the advantageous geometric details are specified in more detail, according to which the axial height of the radial ribs 5 steadily decreases in the course of the lateral surface 8 radially outwards up to the attachment points 4 . The tangential ribs 6 have an axial height h, which is in a ratio to the direct distance b between two attachment points 4 of a group, which means that h/b=0.28. Alternatively, the ratio is set in a range of 0.2-0.4. According to the side view, the course of the tangential ribs 6 between two attachment points 4 is arcuate with a course that rises and then falls with respect to their axial height. At the apex S there is a radius R that is in proportion to the direct distance b between two attachment points 4 of a group that applies R / b = 0.2. Alternatively, the ratio is set in a range of 0.1-0.3.

Claims (15)

  1. A blower housing component (1) with a housing body (2) and a mounting flange (3) extending radially outward from the housing body (2), at which mounting flange (3) multiple mounting points (4) are arranged for mounting the blower housing component (1), which mounting points (4) are evenly spaced in the circumferential direction, wherein radial ribs (5) extending radially in a straight line along the mounting flange (3) are formed between the housing body (2) and the mounting points (4), characterized in that the radial ribs (5) are intersected by tangential ribs (6) extending along the mounting flange (3), which tangential ribs (6) extend tangentially to the housing body (2) between two of the mounting points (4), respectively, and connect the two mounting points (4), respectively.
  2. The blower housing component according to Claim 1, characterized in that the tangential ribs (6) extend radially spaced apart from the housing body (2).
  3. The blower housing component according to Claim 1 or 2, characterized in that the tangential ribs (6), seen in an axial top view, extend tangentially to the housing body (2) and in sections around the housing body (2).
  4. The blower housing component according to any one of the preceding claims, characterized in that each of the radial ribs (5) is intersected by at least one tangential rib (6).
  5. The blower housing component according to any one of the preceding claims, characterized in that the radial ribs (5) and the tangential ribs (6) alternately penetrate each other in the circumferential direction.
  6. The blower housing component according to any one of the preceding claims, characterized in that at least three mounting points (4) are provided, which are arranged at a 120° distance to each other in the circumferential direction at a radial outer edge of the mounting flange (3).
  7. The blower housing component according to the preceding claim, characterized in that two groups of mounting points (4) are provided in an arrangement of three points per group spaced apart by 120° in the circumferential direction.
  8. The blower housing component according to the preceding claim, characterized in that two of the adjacent mounting points (4) respectively are arranged at an angular distance of 30° in the circumferential direction to each other.
  9. The blower housing component according to any one of the preceding claims, characterized in that the tangential ribs (6) intersect.
  10. The blower housing component according to any one of the preceding claims, characterized in that each of the radial ribs (5) is intersected by at least one tangential rib (6).
  11. The blower housing component according to any one of the preceding claims, characterized in that an axial height of the radial ribs (5) steadily decreases along the radially outward extension.
  12. The blower housing component according to any one of the preceding claims, characterized in that the tangential ribs (6) have an axial height h, which is in proportion to a direct distance b between two mounting points (4), such that 0.2≤h/b≤0.4.
  13. The blower housing component according to any one of the preceding claims, characterized in that the gradient of the tangential ribs (6) between two fastening points (4) first ascends and then descends with regards to its axial height, wherein a vertex (S) defining the transition between the ascending and descending gradient has a radius R, which is in proportion to the direct distance b between two mounting points (4), such that 0.1≤R/b≤0.3.
  14. The blower housing component according to any one of the preceding claims, characterized in that it is formed as a diffuser housing for an arrangement attaching to a gas blower (100), wherein the housing body (2) forms a diffuser with a suction opening (14) and a flow outlet provided at the mounting flange (3) for inflow into the gas blower (100).
  15. A gas blower (100) having a blower housing component (1) according to any one of the previous claims.
EP20170151.3A 2019-06-11 2020-04-17 Stiffened fan housing part for use in a gas blower Active EP3751151B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019115741.2A DE102019115741A1 (en) 2019-06-11 2019-06-11 Stiffened fan housing part for arrangement on a gas fan

Publications (2)

Publication Number Publication Date
EP3751151A1 EP3751151A1 (en) 2020-12-16
EP3751151B1 true EP3751151B1 (en) 2023-03-15

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Application Number Title Priority Date Filing Date
EP20170151.3A Active EP3751151B1 (en) 2019-06-11 2020-04-17 Stiffened fan housing part for use in a gas blower

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US (1) US11572892B2 (en)
EP (1) EP3751151B1 (en)
KR (1) KR102347714B1 (en)
CN (1) CN211230992U (en)
DE (1) DE102019115741A1 (en)

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US885108A (en) * 1907-01-21 1908-04-21 Simeon V Trent Centrifugal pump.
US5443364A (en) * 1993-10-18 1995-08-22 Carrier Corporation Snap-fit inducer housing and cover for gas furnace
JP2001309601A (en) * 2000-04-25 2001-11-02 Asmo Co Ltd Motor holder
CN2432367Y (en) * 2000-07-01 2001-05-30 青岛兴仪电子设备有限责任公司 Box type incubator fan blade
US7210903B2 (en) * 2004-09-03 2007-05-01 Fasco Industries, Inc. Lobed joint draft inducer blower
KR100819921B1 (en) * 2007-12-14 2008-04-08 주식회사 청석 Motor pump
DE202008002356U1 (en) * 2008-02-19 2009-06-25 Ebm-Papst Mulfingen Gmbh & Co. Kg compact fans
DE102011014117A1 (en) * 2011-03-15 2012-09-20 Ebm-Papst Landshut Gmbh Mixing device for mixing combustion air and gas for a gas appliance
NL2008180C2 (en) * 2012-01-25 2013-07-29 Ihc Holland Ie Bv Pump and a method of manufacturing such a pump.
DE102013204144A1 (en) * 2013-03-11 2014-09-11 BSH Bosch und Siemens Hausgeräte GmbH Housing for a radial fan of an extractor hood
DE102014219046A1 (en) * 2014-09-22 2016-03-24 Mahle International Gmbh fan
WO2017140334A1 (en) * 2016-02-15 2017-08-24 Pierburg Pump Technology Gmbh Automotive electrical coolant pump

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CN211230992U (en) 2020-08-11
US20200392969A1 (en) 2020-12-17
US11572892B2 (en) 2023-02-07
KR102347714B1 (en) 2022-01-06
DE102019115741A1 (en) 2020-12-17
EP3751151A1 (en) 2020-12-16
KR20200142452A (en) 2020-12-22

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