EP0958069B1 - Systeme pour echappements - Google Patents

Systeme pour echappements Download PDF

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Publication number
EP0958069B1
EP0958069B1 EP97901868A EP97901868A EP0958069B1 EP 0958069 B1 EP0958069 B1 EP 0958069B1 EP 97901868 A EP97901868 A EP 97901868A EP 97901868 A EP97901868 A EP 97901868A EP 0958069 B1 EP0958069 B1 EP 0958069B1
Authority
EP
European Patent Office
Prior art keywords
channel
carriage
seal
hose
suction
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
EP97901868A
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German (de)
English (en)
Other versions
EP0958069A1 (fr
Inventor
Bengt Larsson
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.)
Fumex AB
Original Assignee
Fumex AB
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Filing date
Publication date
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Application filed by Fumex AB filed Critical Fumex AB
Publication of EP0958069A1 publication Critical patent/EP0958069A1/fr
Application granted granted Critical
Publication of EP0958069B1 publication Critical patent/EP0958069B1/fr
Anticipated expiration legal-status Critical
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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
    • B08B15/005—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 comprising a stationary main duct with one or more branch units, the branch units being freely movable along a sealed longitudinal slit in the main duct

Definitions

  • the present invention relates to a suction operated gas evacuating arrangement, and then particularly, but not exclusively, to a vehicle exhaust gas evacuating arrangement, wherein the arrangement includes a suction hose having at one end a device for connecting the hose to the exhaust pipe of a vehicle, and wherein the other end of the hose communicates with a suction channel.
  • exhaust gas evacuating arrangements in vehicle testing systems and vehicle repair shops to evacuate vehicle emission gases from the premises concerned, so as to keep the emission of gases into said premises at the lowest possible extent.
  • These arrangements normally include a hose which carries at one end a device for connecting the hose to the exhaust pipe of a vehicle, while the other end of the hose is connected to a suction channel.
  • the exhaust gases are transported through the hose and channel to an outlet point located externally of the building for instance, with the aid of a fan or fan system.
  • the gas evacuating arrangement shall be leakage-free to the greatest possible extent, while enabling a hose connection to be fitted to the vehicle as the vehicle enters the premises and to enable the vehicle to be moved within the premises until it leaves said premises, wherewith the suction hose is disconnected from the vehicle.
  • the US 4117773 A discloses a gas evacuating arrangement, wherein a suction hose communicates with a suction channel through a carriage, which can be moved in the longitudinal direction of the channel.
  • the carriage includes means for temporarily lifting a free edge of a seal mounted along the suction channel, such as to effect desired communication between the carriage and the channel (see figure 1-2).
  • DE 36 04 085 A describes a suction operated gas evacuating arrangement, particularly for evacuating vehicle exhaust gases, wherein the arrangement includes a suction hose having provided on a first end a device for connecting the hose to the exhaust pipe of a vehicle for instance, and wherein the other end of the hose communicates with a suction channel.
  • the arrangement includes a carriage which can be moved in the longitudinal direction of the channel, said second end of the hose is connected to the carriage.
  • the arrangement further includes a seal in the top of the channel and means for temporarily lifting said seal such as to effect desired communication between said carriage and said channel, the seal covering an opening in the top section of the channel and being adapted to coact in the abutment of a free long side edge with a supportive surface and with the means of the carriage through the combined effect of the weight of the seal and the sub-pressure in the suction channel.
  • One object of the present invention is to provide a highly effective gas evacuating arrangement with the opening in the top section of the channel which allows an easy temporarily lifting of the seal through the means of the carriage.
  • the inventive arrangement has many advantages over known arrangements of this kind.
  • the inventive arrangement ' provides a highly impervious means for effectively transporting gas between the suction hose and the suction channel.
  • the inventive sealing device is designed to provide an effective sealing function with the aid of gravity and suction power.
  • the invention allows a number of different embodiments to be implemented with regard to the method in which the hose or hoses is/are transported along the suction channel.
  • the inventive arrangement can readily be combined with different types of auxiliary devices, such as balancing blocks and parallel guide rails that are inclined to enable suction hoses to slide back automatically to an initial position.
  • the inventive arrangement may, of course, also be used in combination with means for returning the suction hose or hoses mechanically.
  • the inventive arrangement thus provides both technical and economical advantages.
  • Fig. 1 illustrates an inventive arrangement in perspective
  • Fig. 2 is a partially open perspective view of the inventive arrangement in larger scale.
  • the inventive arrangement includes a flexible suction hose 1 which carries on a first end 2 a device 3 for connection to the exhaust pipe of a vehicle, for instance an automobile 100.
  • the other end 4 of the hose 1 communicates with a suction channel 5 through the medium of a carriage 40 that is movable in the longitudinal direction of said channel, wherein said other hose end 4 is connected to the carriage 40.
  • a balance block 6 acts between the carriage 40 and the hose 1 and enables the hose to be hoisted from a low position of use to a higher position in which the hose can be moved along the channel 5 without colliding with objects present in the premises.
  • the arrangement also includes a guide rail 10, normally a ceiling-mounted rail, wherein the rail can also be used to support the suction channel 5 if so desired.
  • the suction channel 5 of the illustrated embodiment is divided into two part-channels 5a and 5b, which are mirror images of each other.
  • the part-channels 5a and 5b may be connected to an evacuation pipe and to a fan system or the like that provides the suction-operated evacuating arrangement with the requisite suction force.
  • the guide rail 10 includes a forward transport rail 10a and an outer rail loop 10b that functions as a return transport rail, said rails 10a and 10b being positioned above the part-channels 5a and 5b.
  • the cross-sectional shape of the transport rail/guide rail 10 will best be seen from Fig. 2.
  • the part-channels 5a and 5b are supported by the transport rail 10 through the medium of attachments 11.
  • the part-channels 5a and 5b are of mutually identical construction and are the mirror image of each other, and consequently only one, 5a, of the part-channels will be described in detail.
  • the part-channel 5a of the illustrated embodiment has a chute-like or gutter-like configuration and includes a bottom 20, an outer side wall 21 and an inner side wall 22.
  • the part-channel 5a also includes a sealing end-cover 23 at respective ends thereof.
  • the top of the part-channel 5a is closed by means of a flexible seal 24, for instance a rubber or plastic seal.
  • the seal 24 extends along the full length of the part-channel 5a and also overlaps the end-covers 23 of said channel.
  • the outer side edge 25 of the seal 24 that lies proximal to the outer side wall 21 is sealingly attached to an attachment part 26 of the part-channel 5a.
  • the seal 24 has a free edge 27 which faces towards the inner side wall 22 and which rests on a ledge 28 provided at the upper edge of the inner wall 22.
  • the free side edge 27 of the seal 24 rests on the ledge 28 under the weight of the seal while the sub-pressure prevailing in the channel acts on the seal 24 to provide a particularly effective sealing effect.
  • a downward sloping climber plate 29 is mounted at both end-parts of the part-channel 5a.
  • the part-channel 5b is an identical mirror-image of the part-channel 5a and consequently those parts of the part-channel 5b that find correspondence in the part-channel 5a have been identified with the same reference signs in the drawings.
  • the inventive arrangement also includes a box-like carriage 40 that can be moved along the length of the channel 5.
  • a socket connector 41 which enables the suction hose 1 to be connected to the arrangement with the upper end 4 of said hose communicating with said carriage 40.
  • the carriage 40 includes a bottom 42, two side walls 43, 44 and two end walls 44, 46.
  • the side wall 43 of said carriage 40 carries a guide rail 50 which slides on the ledge 28, but underneath the sealing edge 27 as the carriage 40 is moved along the part-channels 5a and 5b.
  • the side wall 44 also carries correspondingly a guide rail 50 which slides along the part-channel 5b in the aforedescribed manner.
  • the carriage 40 also includes a carrier frame 60 which carries rotatable guide wheels 61, 62 whose size and positioning are adapted to enable the wheels to roll guidingly between the inner walls 22 of the part-channels 5a and 5b.
  • the frame 60 also carries further guide wheels 63-66 which roll guidingly within the guide rail 10 such as to enable the carriage 40 to be moved along the guide rail 10 in an effectively guided manner in relation to the part-channels 5a and 5b.
  • the carriage 40 also carries on its upper surface an arcuate cover plate 70.
  • the cover plate 70 is anchored to the upper edges of the walls 45, 46, and the end-parts 71, 72 of said cover plate project beyond respective end walls.
  • the free end-edges of respective end-parts 71, 72 are located essentially on the same height level as the guide rails 50.
  • the width of the cover plate 70 is such as to enable the edge-parts of said plate to slide beneath the free edge 27 of the seals 24. Because of the arcuate shape of the cover plate 70, there is defined between the upper edge of the side wall 43 and the cover plate 70 an air gap 73.
  • An air gap 74 is formed correspondingly between the upper edge of the side wall 44 and the cover plate 70.
  • the relevant end-part 71 or 72 of the cover plate and the guide rails 50 will enter between the seals 24 and the supportive ledge parts 28 by virtue of the presence of the climber plates 29 and a certain seal overhang, as evident from Fig. 2.
  • the arcuate cover plate 70 functions to slidingly lift the seals 24, as a result of relevant seal sections sliding on the upper surface of the cover plate 70, so as to obtain mobile communication between the inner space of the carriage 40 and the inner space of respective part-channels 5a and 5b.
  • the arrangement may include an automatically functioning throttle or valve that closes the hose 1 when the suction arrangement is not in use, so as to avoid applying suction to the apparatus in the absence of exhaust gases.
  • the inventive suction arrangement may be used in the following manner.
  • the hose connection device 3 is connected to the exhaust pipe of a vehicle 100 in the premises concerned, whereafter movement of the vehicle in the premises will cause the carriage 40 to be drawn along the channel 5. This movement causes the cover plate 70 to lift the seals temporarily, such that the exhaust gases are able to pass from the carriage 40 and into the part-channels 5a and 5b via the gaps 73 and 74, for further transportation of the gases from the premises.
  • the hose connector 3 is removed from the vehicle exhaust pipe and the hose 1 is hoisted to a higher level, e.g. through the medium of a balance block or counterweight 6, and the carriage 40 with the hose 1 hanging therefrom is returned to a position adjacent the entrance to the premises in readiness for connection to the next vehicle, for instance.
  • the hose and carriage can be returned to said position in a number of different ways. This has been exemplified in Fig. 1 with a return rail 10b which forms an additional loop. This method of returning the hose and carriage is particularly advantageous, particularly when a plurality of individual carriages 40 and suction hoses 1 are arranged to act along a channel 5.
  • the guide rail 10b may be inclined so as to enable return of the carriages 40 and suction hoses 1 suspended therefrom to be effected under the force of gravity.
  • this method of returning carriages 40 and suction hoses suspended therefrom to a starting position is only one of a number of different alternatives.
  • the carriage and the hose may be returned mechanically, wherein the carriage 40 need not leave the guide rail 10a mounted above the part-channels 5a and 5b.
  • the carriage may, of course, also be returned manually, by gripping the hose and dragging the carriage to its starting position for connection to another vehicle.
  • the carriage 40 may also be constructed to function when the channel 5 is an undivided single channel, e.g. a channel similar to part-channel 5a.
  • the gap 74 will, of course, be closed by a cover plate and the guiding of the carriage 40 in relation to the part-channel 5a will be further supplemented with a counterpressure roll that rolls along the outer channel wall 21.
  • the illustrated means for guiding the carriage relative to the channel 5 may be modified or varied in many different ways.
  • the invention thus provides a highly effective sealing function between the carriage 40 and the part-channels 5a and 5b, wherewith highly effective sealing is ensured between the carriage 40 and the channels 5a and 5b through the combined effect of gravity and suction subpressure as the carriage 40 is moved along the part-channels 5a and 5b as the vehicle is moved.

Landscapes

  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Exhaust Silencers (AREA)
  • Surgical Instruments (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Exhaust-Gas Circulating Devices (AREA)
  • Valve Device For Special Equipments (AREA)

Claims (6)

  1. Dispositif d'évacuation de gaz par aspiration, en particulier pour évacuer des gaz d'échappement de véhicule, dans lequel le dispositif inclut un tuyau souple d'aspiration (1) à une première extrémité (2) duquel est monté un dispositif (3) destiné à relier le tuyau souple au tuyau d'échappement d'un véhicule (100) par exemple, et dans lequel l'autre extrémité (4) du tuyau souple (1) communique avec un canal d'aspiration (5), le dispositif inclut en outre un chariot (40) qui peut être déplacé dans la direction longitudinale du canal (5), ladite deuxième extrémité (4) du tuyau souple (1) est reliée au chariot (40) ; le dispositif incluant en outre un éléments de scellement (24) dans la partie supérieure du canal (5) et un moyen (70) destiné à soulever temporairement ledit élément de scellement (24) de façon à effectuer une communication entre ledit chariot (40) et ledit canal (5), l'élément de scellement recouvrant une ouverture dans la section supérieure du canal (5) et étant adapté pour coopérer, en butée avec un bord long latéral libre, avec une surface porteuse (28) et avec le moyen (70) du chariot (40) par l'effet combiné du poids de l'élément de scellement (24) et de la dépression dans le canal d'aspiration (5), caractérisé en ce que l'élément de scellement (24) est flexible et un côté long (25) dudit élément de scellement flexible (24) est monté fixe le long de la partie supérieure dudit canal d'aspiration (5), l'autre bord long latéral (27) dudit éléments de scellement étant libre et reposant sur la section supérieure du canal (5) en appui sur le rebord de support (28) à l'extérieur du canal (5), caractérisé en outre en ce que le moyen (70) est adapté pour soulever temporairement le bord long latéral libre (27) de l'élément de scellement flexible (24), de manière à effectuer ladite communication entre ledit chariot (40) et l'ouverture dans la section supérieure du canal (5).
  2. Dispositif selon la revendication 1, caractérisé en ce que le canal (5) est constitué de deux parties de canal (5a, 5b), et en ce que chaque partie de canal (5a, 5b) porte un élément de scellement individuel (24).
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que le canal (5) ou les parties de canal (5a, 5b) ont une configuration en gouttière.
  4. Dispositif selon une quelconque des revendications 1 à 3, caractérisé en ce que le chariot (40) a sensiblement une configuration en boíte qui inclut une ouverture dirigée vers le haut, en ce que ladite ouverture est recouverte d'une plaque de couverture (70) de forme généralement incurvée dont la partie de bord ou les parties de bord provoquent le soulèvement temporaire du bord libre (27) de l'élément de scellement (24) ; et en ce que au moins un orifice de communication de gaz (73, 74), ou des moyens équivalents, est prévu entre la plaque de couverture (70) et la partie latérale (43, 44) du chariot (40) en forme de boíte.
  5. Dispositif selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le chariot (40) inclut un moyen (50, 61 à 66) destiné à guider ledit chariot dans son mouvement longitudinal par rapport au canal (5) ou les parties de canal (Sa, 5b).
  6. Dispositif selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le dispositif inclut un rail (10) destiné à transporter ou guidé le chariot (40).
EP97901868A 1996-01-20 1997-01-19 Systeme pour echappements Expired - Lifetime EP0958069B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9600218A SE511540C2 (sv) 1996-01-20 1996-01-20 Anordning vid utsugning av gas
SE9600218 1996-01-20
PCT/SE1997/000076 WO1997026094A1 (fr) 1996-01-20 1997-01-19 Systeme pour echappements

Publications (2)

Publication Number Publication Date
EP0958069A1 EP0958069A1 (fr) 1999-11-24
EP0958069B1 true EP0958069B1 (fr) 2003-04-09

Family

ID=20401100

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97901868A Expired - Lifetime EP0958069B1 (fr) 1996-01-20 1997-01-19 Systeme pour echappements

Country Status (7)

Country Link
EP (1) EP0958069B1 (fr)
AT (1) ATE236737T1 (fr)
AU (1) AU1561897A (fr)
DE (1) DE69720788D1 (fr)
NO (1) NO306662B1 (fr)
SE (1) SE511540C2 (fr)
WO (1) WO1997026094A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103962359A (zh) * 2013-01-25 2014-08-06 巴斯夫聚氨酯特种产品（中国）有限公司 抽风系统
CN103331273A (zh) * 2013-05-06 2013-10-02 广西壮族自治区机械工业研究院 列管式加热器全自动清洗设备的高压水枪尾管整理装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2246043B2 (de) * 1972-09-20 1979-02-22 Christian O. 7314 Wernau Gruhl Abgasabsauganlage
US4117773A (en) * 1977-05-05 1978-10-03 Crane Air Trac Incorporated Ventilation system for the supply of air or exhaustion of fumes
SE418932B (sv) * 1977-12-16 1981-07-06 Nederman Bill P Ph Med rorlig gaspassageenhet forsedd, gasgenomstrommningskanal bildande bana
NO147318B (no) * 1981-02-13 1982-12-06 Norsk Viftefabrikk As Anordning for avsuging av tappegass fra roterende smelteovner
DE3604085A1 (de) * 1985-08-24 1987-02-26 Ewald Ibens Vorrichtung zum absaugen von schadstoffen

Also Published As

Publication number Publication date
SE511540C2 (sv) 1999-10-18
AU1561897A (en) 1997-08-11
SE9600218L (sv) 1997-07-21
SE9600218D0 (sv) 1996-01-20
DE69720788D1 (de) 2003-05-15
EP0958069A1 (fr) 1999-11-24
ATE236737T1 (de) 2003-04-15
NO983323D0 (no) 1998-07-17
NO983323L (no) 1998-09-17
WO1997026094A1 (fr) 1997-07-24
NO306662B1 (no) 1999-12-06

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