EP0261359B1 - Gebläse zum Entfernen von durch Kraftfahrzeuge erzeugten Abgasen - Google Patents

Gebläse zum Entfernen von durch Kraftfahrzeuge erzeugten Abgasen Download PDF

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Publication number
EP0261359B1
EP0261359B1 EP87111314A EP87111314A EP0261359B1 EP 0261359 B1 EP0261359 B1 EP 0261359B1 EP 87111314 A EP87111314 A EP 87111314A EP 87111314 A EP87111314 A EP 87111314A EP 0261359 B1 EP0261359 B1 EP 0261359B1
Authority
EP
European Patent Office
Prior art keywords
impeller
motor
housing
delivery
fan
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.)
Expired - Lifetime
Application number
EP87111314A
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English (en)
French (fr)
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EP0261359A1 (de
Inventor
Giacomino Canale
Franco Tabacchi
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.)
ASPIRGAS S.R.L.
Original Assignee
ASPIRGAS Srl
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Filing date
Publication date
Application filed by ASPIRGAS Srl filed Critical ASPIRGAS Srl
Priority to AT87111314T priority Critical patent/ATE61257T1/de
Publication of EP0261359A1 publication Critical patent/EP0261359A1/de
Application granted granted Critical
Publication of EP0261359B1 publication Critical patent/EP0261359B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
    • B08B15/002—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using a central suction system, e.g. for collecting exhaust gases in workshops

Definitions

  • the invention relates to a fan for sucking away the exhaust gases of motor-vehicles with running engines while in workshops, garages and the like, said fan comprising an impeller actuated by a co-axial electric motor and enclosed in a housing having a suction mouth and a delivery outlet arranged co-axially.
  • the invention aims to overcome said disadvantages and to provide a fan of the type described in the introduction to the description which, while maintaining the constructional advantages afforded by the co-axial arrangement of the impeller and the actuating electric motor thereof avoids any influence of gases on the motor and additionally avoids any risk of explosion due to the ignition of explosive mixtures possibly contained in said gases.
  • the electric motor (co-axial with the impeller) is arranged on the delivery side and the suction mouth is substantially co-axial with said impeller
  • said housing for the impeller comprises a pair of respective delivery ducts leading from the impeller and extending on either side of said motor and merging to the common delivery union I arranged downstream of the motor, the motor being mounted outside the housing and thus not being contacted by the exhaust gases.
  • a kind of "ducted" fan which comprises a suction mouth and a delivery union which are substantially co-axial with each other and with the impeller/motor unit, and wherein the electric motor is arranged outside within a space or opening which is surrounded by an annular hollow body including the housing for said impeller, by the two delivery side-ducts and by the delivery union.
  • the housing for the impeller, with its suction mouth, the two delivery side-ducts connected to the common delivery union to which said delivery ducts are connected constitute a unitary annular hollow body, provided with a suction mouth and a delivery union which is arranged oppositely co-axially with said suction mouth.
  • This annular hollow body which, advantageously, may be made of plastics material, mounts interiorly the impeller of the fan and, exteriorly, in the opening enclosed thereby, the electric motor for actuating the impeller, which is co-axial with said impeller.
  • said annular hollow body In its operative condition, said annular hollow body may be positioned as desired, with its central opening extending in horizontal, vertical or inclined plane.
  • the electric motor for actuating the impeller is arranged away from the path of travel of the gases and, therefore, is not affected by them, particularly by the temperature of the exhaust gases of motor-vehicules and pollutants entrained thereby, and it cannot cause any ignition and explosion of inflammable or explosive mixtures contained in said gases.
  • the impeller of the fan according to the invention may be constructed as desired according to the type of the fan, which may be either of the centrifugal or axial (helical) types.
  • the fan according to the invention may be used, as a stationery or mobile unit, in any plant for sucking away noxious or polluting gases from any factory, workshop or the like, and specifically from motor-vehicle repair shops and garages. Due to the constructional simplicity and compactedness, and to the lightweight of the fan according to the invention, the latter is particularly suitable to constitute a mobile, simple and relatively small aspirator which may be used individually for sucking and discharging the exhaust gases of a motor-vehicle from workshops and garages.
  • said fan is mounted on a carriage or trolley, preferably so that its position and level may be adjusted, and its suction mouth is provided with a suction tube, preferably of the rigid and articulated type, which terminates with a funnel in front of the exhaust pipe of a motor-vehicle, while the delivery union is connected to a discharge tube, preferably of the flexible and corrugated type, which is connected to a discharge duct or is extended to the open air outside of the workshop or garage.
  • a suction tube preferably of the rigid and articulated type, which terminates with a funnel in front of the exhaust pipe of a motor-vehicle, while the delivery union is connected to a discharge tube, preferably of the flexible and corrugated type, which is connected to a discharge duct or is extended to the open air outside of the workshop or garage.
  • Figure 1 is a side elevational view of a first embodiment of the fan, in the form of a carriage-aspirator for the exhaust gases of a motor-vehicle.
  • Figure 2 is an enlarged, fragmentary, horizontal sectional view of the fan of figure 1.
  • Figure 3 is a vertical cross sectional view thereof on the line III-III of figure 2.
  • Figure 4 shows a half top plan view and a half horizontal longitudinal sectional view of a modified embodiment of the fan of figures 1 to 3.
  • Figure 5 shows the fan of figure 4, a half in end view and a half in vertical cross sectional view on the line V-V of figure 4.
  • an aspirator for the exhaust gases of motor-vehicles, which is designed to prevent said gases from spreading in workshops, garages and other closed rooms.
  • Said aspirator comprises a fan including a hollow body 1, an impeller 2 and an electric motor 3 for actuating said impeller 2.
  • said hollow body has an annular, substantially rectangular shape and comprises, at the suction side, a transverse portion 4 constituting the housing for t he impeller 2 and enclosing said impeller 2.
  • said portion 4 constituting the housing for the impeller 2 is formed with a central opening 5 which is co-axial with said impeller 2 and is in communication with an outer frusto-conical union or taper 6 which is secured to the body 1 and constitutes the suction mouth of the fan.
  • the annular hollow body 1 comprises as well two delivery side ducts 7 which are substantially parallel to each other and to the axis of rotation of the impeller 2 and Said ducts 7 communicate with each other, at the opposite or delivery end of said annular hollow body 1, through a transverse portion 8 of said annular hollow body 1
  • the transverse portion 8 of said body is provided with a central delivery union 9 which is arranged co-axial with the suction mouth 5 and with the axis of rotation of the impeller 2.
  • the electric motor 3 for actuating the impeller 2 is co-axial with said impeller 2 and is arranged within the intermediate opening or space 10 of the annular hollow body 1 of said fan, so that it is external with respect to the path of travel of gases. More particularly, said motor 3 is secured by means of a flange 11 to the inner end wall of the housing 4 for the impeller 2.
  • the drive shaft 103 extends into the housing 4 for the impeller 2 and mounts said impeller 2.
  • a switch 12 for the motor 3 In the opening 10 of said annular hollow body 1, on the inner end wall of the transverse portion 8, there is secured a switch 12 for the motor 3.
  • Said annular hollow body 1 of the fan may be made of any suitable material, if desired, metallic material. However, in a preferred embodiment of the invention, it is made of suitable plastics material and the frusto-conical union 6 of the suction mouth is made of metal.
  • the fan described above is mounted, so that its level may be adjusted, on a carriage or trolley 13 which is preferably provided with swingable wheels 14. More particularly, said carriage 13 has secured thereto a pair of side uprights 15 receiving therebetween said annular hollow body 1 of said fan.
  • a transverse member 16 is secured to the bottom of said body 1 and its ends are slidably engaged in corresponding vertical guide slots 115 formed in the two uprights 15, and may be locked to these uprights by means of locking nuts 17 which are screwed on the ends of said transverse member 16.
  • the annular hollow body 1 of the burden of motor 3 In order to relieve, at least partially, the annular hollow body 1 of the burden of motor 3, the latter may rest on the transverse member 16 through a support 18.
  • a suction tube 19 Secured to the outer end of the frusto-conical union 6 constituting the suction mouth of the fan is a suction tube 19 which terminates with means for connection with the exhaust pipe 21 of a motor-vehicle 22.
  • Both the suction tube 19 and its means for connecting with the exhaust pipe 21 may be made in any manner. More particularly, the suction tube 19 may be rigid and extend in cantilever fashion from the body 1 of the fan, and it may terminate with a funnel-shaped portion 20 adapted to receive the exhaust pipe 21 of a motor-vehicle. The level of the body 1 is adjustable along the uprights 15 of the carriage 13 so as to bring the funnel 20 of the suction tube 19 to the level of the exhaust pipe 21.
  • said suction tube 19 may also be of the flexible type.
  • the suction tube 19 is constituted by two rigid tube lengths 119,219 which are mutually coupled so as to be rotatable with respect to each other with their ends made circular in a transverse plane 319 which is at an angle of 45 with respect to the axis of the two tube lengths 119 and 219.
  • the delivery union 9 of the annular hollow body 1 of the fan is connected to any duct or pipe through which said exhaust gases of the motor-vehicle 22 are conveyed out of the room (workshop, garage, or the like) where said vehicle 22 is present.
  • said delivery union 9 is connected to a flexible corrugated pipe 23 accommodating therein a rod 24 articulated at 124 to a bracket 25 which is secured to the delivery union 9.
  • the corrugated pipe 23 is axially pressed and contracted on the rod 24, and is held in this condition by means of a transverse pin 26, or the like, inserted crosswise through the free end portion of said rod, as shown in figure 1.
  • the rod 24 may be lifted angularly and be used as a handle for displacing manually the carriage 13 supporting said fan.
  • the pin 26 is pulled out and the corrugated pipe is extended beyond the rod 24, for example, to bring the end of said pipe out of the door or the window of the workshop or garage.
  • said rod 24 may even assume a horizontal position while remaining within the pipe 23.
  • the impeller 2 sucks the exhaust gases of the motor-vehicle 22 through the funnel 20, the pipe 19 and the suction mouth 6, and impels them through the two delivery outlets 104 of the housing 4 and adjacent delivery side ducts 7 into the transverse portion 8 to flow out therefrom through the delivery union 9 and tube 23 to be conveyed out of the closed room.
  • the motor 3 for actuating the impeller 2 is never contacted by the evacuated gases and, therefore, is not warmed up or fouled thereby and it cannot cause the ignition of any explosive mixture in said exhaust gases.
  • the impeller 2 is usually constructed so as to obtain a centrifugal fan. This type operation of the fan assures a sufficient flow even when the housing 4 for the impeller has not, interiorly, a scroll configuration and has instead a rectangular or square configuration with substantially rectilinear sides, as shown in figure 3.
  • the portion 4 of the annular hollow body 1, which constitutes the housing for the impeller 2 has an inside configuration comprising two scroll-shaped sectors 204 which are staggered 180 from each other and communicate, through a respective delivery outlet 104 of the housing 4, with a delivery side duct 7, as clearly shown in the sectional view of figure 5.
  • the embodiment of figures 4 and 5 is substantially similar to the embodiment of figures 1 to 3, the similar parts being designated by the same reference numerals.
  • the fan according to the invention may be used for sucking away not only the exhaust gases of motor-vehicles, but as well any other noxious or polluting gases from closed rooms and workshops, in any aspirator systems or plants, in aspirator kitchen-hoods or the like, and as well for any other use wherein the fan of the invention may be useful.
  • the fan according to the invention may be used with no carriage, and it may be fixedly arranged within any suction or delivery duct.

Landscapes

  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Processing Of Solid Wastes (AREA)
  • Exhaust-Gas Circulating Devices (AREA)
  • Sampling And Sample Adjustment (AREA)

Claims (9)

  1. Gebläse zum Entfernen von durch Kraftfahrzeuge mit laufenden Motoren in Werkstätten, Garagen und ähnlichen erzeuten Abgasen, enthaltend ein Flügelrad (2), das durch einen koaxialen Elektromotor (3) angetrieben wird, wobei das Flügelrad in einem Gehäuse (4) angeordnet ist, das einen Ansaugstutzen (6) und einen Förderauslass (9) hat, die beide im wesentlichen koaxial zu der Achse des genannten Flügelrades (2) und des Motors (3) angeordnet sind, dadurch gekennzeichnet, dass der genannte Elektromotor (3) auf der Förderseite des Flügelrades angeordnet ist, und dass das Gehäuse (4) für das Flügelrad (2) wenigstens zwei Forderleitungen (7) enthält, die von dem Flügelrad ausgehen und sich auf jeder Seite des genannten Motors erstrecken und in der gemeinsamen Förderauslass (9) münden, der im Anschluss an den Motor angeordnet ist, wobei der Motor ausserhalb des Gehäuses montiert ist und daher nicht von den Abgasen berührt wird.
  2. Gebläse mach Patentanspruch 1, dadurch gekennzeich-net,dass das Gehäuse ringförmig und der Motor (3) in der öffnung (10) des genannten ringförmigen Gehäuses (4) angeordnet ist.
  3. Gebläse nach Patentanspruch 2, dadurch gekennzeichnet, dass das genannte ringförmige Gehäuse (4) aus Kunst-stoffmaterial hergestellt ist.
  4. Gebläse nach einem oder mehreren der Patentansprüche von 1 bis 3, dadurch gekennzeichnet, dass das Gebläse von der Art eines Zentrifugalgebläses ist und das Gehäuse (4) im Verhältnis zu der Achse des Flügelrades (2) einen Querschnitt von rechteckiger oder quadratischer Darstellung hat.
  5. Gebläse nach einem oder mehreren der Patentansprüche von 1 bis 3, dadurch gekennzichnet, dass es von der Art eines Zentrifugalgebläses ist, und das Gehäuse (4) hat im Querschnitt im Verhältnis zu der Achse des Flügelrades (2) eine Darstellung mit zwei oder mehr schneckenförmigen Abschnitten (204), die winkelmässig zueinander versetzt sind, und von denen jeder mit seinem weiteren Ende an eine entsprechende Leitung (7) angeschlossen ist, deren Achse im wesentlichen parallel zu der des Flügelrades (2) und dessen Antriebsmotor (3) verläuft.
  6. Gebläse nach einem oder mehreren der Patentansprüche von 1 bis 5, dadurch gekennzeichnet, dass es auf einem Wagen (13, 14) montiert ist, und zwar vorzugsweise so, dass die Position und die Höhe eingestellt werden können.
  7. Gebläse nach einem oder mehreren der Patentansprüche von 1 bis 6, dadurch gekennzeichnet, dass der Ansaugstutzen (6) an ein Ansaugrohr (19) angeschlossen ist, das in einem Rauchfangmantel (20) ausläuft.
  8. Gebläse nach Patentanspruch 7, dadurch gekennzeich net,dass das genannte Ansaugrohr (19) zwei Rohrabschnitte (119, 219) enthalten, deren zusammenpassende Enden in einer querverlaufenden Ebene (319) kreisförmig ausgelegt sind, und zwar in einem Winkel von 45°, und die so miteinander verbunden sind, dass sie einer im Verhältnis zum anderen gedreht werden können.
  9. Gebläse nach einem oder mehreren der Patentansprüche von 1 bis 8, dadurch gekennzeichnet, dass der genannte Förderauslass aus einer Fördereinheit (9) besteht, die an ein flexibles, gewelltes Förderrohr (23) angeschlossen ist, das geeignet ist, in einer axial zusammengedrückten Zustand über eine interne Stange (24) gedrückt zu werden, die an die Fördereinheit (9) angelenkt ist und an ihrem freien Ende Mittel (26) enthält, welche mit dem freien Ende des genannten Förderrohres (23) zusammenwirken, so dass das genannte Rohr auf der genannten Stange (24) in seinem zusammengedrückten Zustand verbleibt.
EP87111314A 1986-09-04 1987-08-05 Gebläse zum Entfernen von durch Kraftfahrzeuge erzeugten Abgasen Expired - Lifetime EP0261359B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87111314T ATE61257T1 (de) 1986-09-04 1987-08-05 Geblaese zum entfernen von durch kraftfahrzeuge erzeugten abgasen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1254086 1986-09-04
IT12540/86A IT1218110B (it) 1986-09-04 1986-09-04 Ventilatore particolarmente adatto per l aspirazione dei gas di scari co di autoveicoli

Publications (2)

Publication Number Publication Date
EP0261359A1 EP0261359A1 (de) 1988-03-30
EP0261359B1 true EP0261359B1 (de) 1991-03-06

Family

ID=11141357

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87111314A Expired - Lifetime EP0261359B1 (de) 1986-09-04 1987-08-05 Gebläse zum Entfernen von durch Kraftfahrzeuge erzeugten Abgasen

Country Status (5)

Country Link
EP (1) EP0261359B1 (de)
AT (1) ATE61257T1 (de)
DE (1) DE3768394D1 (de)
ES (1) ES2022227B3 (de)
IT (1) IT1218110B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104984974A (zh) * 2015-07-13 2015-10-21 江苏理工学院 一种新型移动式汽车尾气自动抽排系统

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8711168D0 (en) * 1987-05-12 1987-06-17 Bt Sales Serv Ltd Mobile exhaust extractor
GB2334757B (en) * 1997-10-27 2002-03-20 Valeo Climate Control Inc Ventilation unit
DE19836840C1 (de) * 1998-08-13 2000-05-04 Nederman Norfi Gmbh Absauganlage für Kraftfahrzeugabgase
CN103568822B (zh) * 2013-11-23 2016-02-03 山西大运汽车制造有限公司 重卡排气尾管口对接移动装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2066683A (en) * 1933-06-03 1937-01-05 Grubelic Nicholas Portable fume remover
US2598884A (en) * 1949-10-27 1952-06-03 Jr Francis E Brady Portable exhaust gas conveyer
US4102254A (en) * 1977-01-04 1978-07-25 Grant James L Exhaust disposal system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104984974A (zh) * 2015-07-13 2015-10-21 江苏理工学院 一种新型移动式汽车尾气自动抽排系统

Also Published As

Publication number Publication date
EP0261359A1 (de) 1988-03-30
DE3768394D1 (de) 1991-04-11
IT1218110B (it) 1990-04-12
ATE61257T1 (de) 1991-03-15
ES2022227B3 (es) 1991-12-01
IT8612540A0 (it) 1986-09-04

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