EP0423060B1 - Raccord pour tube combiné avec pompe à jet - Google Patents

Raccord pour tube combiné avec pompe à jet Download PDF

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Publication number
EP0423060B1
EP0423060B1 EP19900630174 EP90630174A EP0423060B1 EP 0423060 B1 EP0423060 B1 EP 0423060B1 EP 19900630174 EP19900630174 EP 19900630174 EP 90630174 A EP90630174 A EP 90630174A EP 0423060 B1 EP0423060 B1 EP 0423060B1
Authority
EP
European Patent Office
Prior art keywords
hose
product
coupling
suction tube
chamber
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
EP19900630174
Other languages
German (de)
English (en)
Other versions
EP0423060A1 (fr
Inventor
John Howard Stanley
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.)
Goodyear Tire and Rubber Co
Original Assignee
Goodyear Tire and Rubber Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Goodyear Tire and Rubber Co filed Critical Goodyear Tire and Rubber Co
Publication of EP0423060A1 publication Critical patent/EP0423060A1/fr
Application granted granted Critical
Publication of EP0423060B1 publication Critical patent/EP0423060B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/04—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring fuels, lubricants or mixed fuels and lubricants
    • B67D7/0476—Vapour recovery systems
    • B67D7/0478—Vapour recovery systems constructional features or components
    • B67D7/0488—Means for preventing the formation of condensation on, or for removing condensation from, vapour recovery lines

Definitions

  • This invention relates to coaxial vapor recovery hose assemblies. More particularly, it relates to hose assemblies having associated therewith suction means for removing any liquid accumulation from a low point in the catenary of the hose assembly while the hose assembly is in use.
  • Coaxial vapor recovery hose assemblies have been known for a number of years. Generally, they include an inner product hose which delivers fuel from a pump stand through a dispensing nozzle to a motor vehicle fuel tank and an outer hose coaxially surrounding the product hose to form an annular vapor passageway therebetween for returning the vapors displaced in the vehicle fuel tank back to the pump stand.
  • Relocating the added unit to the pump stand end of the hose assembly has the disadvantage that it requires additional lift to draw the liquid up the suction tube which can only be obtained by increasing the pressure drop across the venturi, thus reducing the flow of fuel through the product hose.
  • Another system disclosed in documents US-A- 4 749 009 or in WO-A- 89 02411 consists of a venturi block located in the middle of the product hose at a point where liquid would accumulate, having a plurality of radial ports communicating between the venturi throat and the annular vapor passage. This system not only has the disadvantage of the increased weight due to the venturi block, but also has the further disadvantage of increasing the number of fittings required to connect the venturi block between the ends of the product hose.
  • the present invention provides a coaxial vapor recovery hose assembly as defined in the appended claims.
  • Fig. 1 is a cross sectional view of the hose coupling of the present invention in a coaxial vapor recovery hose assembly as connected to a dispensing nozzle.
  • Fig. 2 is a cross sectional view of the hose coupling of the present invention.
  • Fig. 3 is a cross sectional view taken along line 3-3 of Fig. 2.
  • Fig. 1 illustrates a coaxial vapor recovery hose assembly shown generally at 10 having an inner product hose 12 with the arrows 13 indicating the fuel product flow path. Coaxially surrounding the product hose 12 is the outer hose 14 which together with the product hose 12 defines an annular vapor passageway 15 therebetween, with the arrows within the passageway indicating the flow of vapors back to the pump stand (not shown).
  • the hose assembly is illustrated as being connected to the product dispensing nozzle 16 by means of an outer hose fitting 18 and product hose coupling 20.
  • the inner hose coupling of the present invention can also be utilized at the inlet end of the product hose at the pump stand but would be subject to the disadvantage alluded to above of requiring extra lift to remove liquid accumulations from the low point in the catenary of the hose.
  • the hose coupling 20 has a generally cylindrically shaped outer surface and a venturi-shaped inner surface with a throat area 21.
  • the hose coupling 20 has at least one aspirator port 24 communicating between the throat area 21 and at least one chamber 25 bored in the outer surface.
  • Fig. 1 illustrates a hose coupling 20 with one aspirator port 24 while
  • Fig. 2 illustrates a hose coupling 20 having a plurality of aspirator ports 24a and 24b.
  • Each chamber 25 has associated therewith a check valve 22 which prevents the flow of product from the product hose into the annular vapor passageway.
  • an elbow fitting 26 which extends from each chamber 25 and is connected to an outlet end of a suction tube 28.
  • the inlet end of the suction tube 28 extends through the vapor passageway 15 to a low point in the catenary (not shown) of the hose assembly while the hose assembly is in use. It will be appreciated that a filtration device should be used at the suction tube inlet.
  • a plurality of barb-like ridges 27 on the outer surface of the hose coupling 20 which is inserted within the product hose 12, and the two are held securely and sealingly together by a crimped ferrule or band 29.
  • the other end of the hose coupling 20, away from the ridges 27, is characterized by an outer peripheral surface 30 which sealingly engages the product conduit 31 of the dispensing nozzle 16.
  • the product flowing in the product hose 12 through a flow path 13 into the hose coupling 20 causes a pressure drop across the venturi throat 21 creating a suction through the aspirator port 24, the elbow fitting 26 and suction tube 28 to remove any liquid accumulation at the inlet end of the suction tube 28 which is located in the low point of the catenary of the hose while the hose assembly is in use
  • the hose assembly of the present invention be used with a hose rotation restrainer such as is disclosed and claimed in US-A-5,082,027.
  • Such a hose restrainer is attached to the product hose at the low point in the catenary of the hose assembly, along with the inlet end of the suction tube 28 to affix the end of the suction tube in the vapor passageway 15 beneath the product hose 12 and to prevent rotation of the product hose 12 in order to maximize the removal of liquid accumulations.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Cleaning In General (AREA)

Claims (4)

  1. Assemblage coaxial de tuyaux flexibles pour la récupération de vapeur, comportant :
    - un tuyau flexible interne (12) destiné au produit, un tuyau flexible externe (14) relié à une tuyère (16) d'alimentation du produit au moyen d'un raccord externe (18) pour tuyaux flexibles et entourant coaxialement ledit tuyau flexible (12) destiné au produit de façon à définir entre eux un passage annulaire (15) destiné à la vapeur;
    - un tube d'aspiration (28) dans ledit passage (15) comportant une extrémité d'entrée s'étendant jusqu'à un point inférieur dans le caténaire de l'assemblage de tuyaux flexibles lors de la mise en service, ainsi qu'une extrémité de sortie; et
    - un raccord (20) pour tuyaux flexibles comportant une première extrémité et une seconde extrémité, comprenant :
       une surface interne en forme de Venturi munie d'une zone de col (21);
       au moins un orifice d'aspiration (24) mettant en communication ladite zone de col (21) et au moins une chambre (25) forée dans la surface externe dudit raccord (20) pour tuyaux flexibles;
       une soupape de réglage (22) associée à chaque chambre (25),
       la surface périphérique externe (30) de la seconde extrémité dudit raccord (20) venant se mettre en contact d'étanchéité avec le conduit (31) de la tuyère d'alimentation (16) destiné au produit,
    caractérisé
    - en ce que ladite surface externe dudit raccord (20) pour tuyaux flexibles est de forme généralement cylindrique,
    - en ce qu'on trouve plusieurs nervures (27) en forme de barbes sur ladite surface externe à la première extrémité dudit raccord (20), insérées dans une première extrémité dudit tuyau flexible (12) destiné au produit,
    - en ce que ladite soupape de réglage (22) est disposée dans chaque chambre (25), et
    - en ce qu'un raccord coudé (26) s'étend à partir de chaque chambre (25) et est relié à ladite extrémité de sortie dudit tube d'aspiration (28).
  2. Assemblage coaxial de tuyaux flexibles pour la récupération de vapeur selon la revendication 1, caractérisé en ce que le tuyau flexible (12) destiné au produit est maintenu sur les nervures (27) en forme de barbes à l'intervention d'une virole ou d'une bande sertie (29).
  3. Assemblage coaxial de tuyaux flexibles pour la récupération de vapeur selon la revendication 1, caractérisé en ce qu'on utilise un dispositif de filtration à l'entrée du tube d'aspiration (28).
  4. Assemblage coaxial de tuyaux flexibles pour la récupération de vapeur selon la revendication 1, comprenant un dispositif d'antirotation du tuyau flexible, ainsi qu'un moyen de fixation pour fixer ledit dispositif de retenue et ladite extrémité d'entrée du tube d'aspiration au tuyau flexible destiné au produit audit point inférieur.
EP19900630174 1989-10-13 1990-10-10 Raccord pour tube combiné avec pompe à jet Expired - Lifetime EP0423060B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US42103389A 1989-10-13 1989-10-13
US421033 1989-10-13

Publications (2)

Publication Number Publication Date
EP0423060A1 EP0423060A1 (fr) 1991-04-17
EP0423060B1 true EP0423060B1 (fr) 1994-01-05

Family

ID=23668918

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900630174 Expired - Lifetime EP0423060B1 (fr) 1989-10-13 1990-10-10 Raccord pour tube combiné avec pompe à jet

Country Status (6)

Country Link
EP (1) EP0423060B1 (fr)
CA (1) CA2019030C (fr)
DE (1) DE69005778T2 (fr)
FI (1) FI95904C (fr)
IE (1) IE70299B1 (fr)
NO (1) NO178184C (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006035033A1 (de) * 2006-07-28 2008-01-31 GM Global Technology Operations, Inc., Detroit Venturidüse
BR112019005619A2 (pt) 2016-09-21 2019-06-18 Dayco Ip Holdings Llc válvula de gaveta interna a uma abertura de venturi de um dispositivo de venturi para a produção de vácuo

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2909988A1 (de) * 1978-03-20 1979-10-04 Atlantic Richfield Co Vorrichtung zur abgabe von fluessigkeiten, beispielsweise treibstoffen, und zur gesteuerten fuehrung des hierbei anfallenden dampfes
CA1276917C (fr) * 1984-03-15 1990-11-27 Roger W. Furrow Systeme extracteur de liquide d'un tube garni d'un bec verseur pour empecher la naissance de tampons liquides dans la voie de recuperation des vapeurs
EP0412082A1 (fr) * 1987-09-18 1991-02-13 DAYCO PRODUCTS, Inc. Assemblage a tuyau et son procede de fabrication

Also Published As

Publication number Publication date
DE69005778D1 (de) 1994-02-17
FI95904B (fi) 1995-12-29
FI905024A0 (fi) 1990-10-12
NO178184B (no) 1995-10-30
NO178184C (no) 1996-02-07
NO904405L (no) 1991-04-15
DE69005778T2 (de) 1994-06-30
NO904405D0 (no) 1990-10-11
IE70299B1 (en) 1996-11-13
IE903588A1 (en) 1991-04-24
CA2019030A1 (fr) 1991-04-13
CA2019030C (fr) 2000-10-31
EP0423060A1 (fr) 1991-04-17
FI95904C (fi) 1996-04-10

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