EP1131543B1 - Dispositif permettant de vidanger un conteneur de fluide visqueux - Google Patents
Dispositif permettant de vidanger un conteneur de fluide visqueux Download PDFInfo
- Publication number
- EP1131543B1 EP1131543B1 EP99972286A EP99972286A EP1131543B1 EP 1131543 B1 EP1131543 B1 EP 1131543B1 EP 99972286 A EP99972286 A EP 99972286A EP 99972286 A EP99972286 A EP 99972286A EP 1131543 B1 EP1131543 B1 EP 1131543B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- volume
- receptacle
- piston
- outside
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/04—Filling or draining lubricant of or from machines or engines
- F01M11/045—Removing lubricant by suction
Definitions
- the present invention relates to devices allowing, in a environment where there is a pressurized atmosphere and a gravitational force, emptying a viscous fluid container, devices that find a particularly advantageous application for draining the oil contained in the engine blocks of motor vehicles or the like.
- the device described in these documents comprises a pump arranged in a housing arranged in the main container capable of collecting the products to be drained like oil or the like.
- the pump has a suction mouth located in the bottom of the pump body. Like this suction mouth must be placed in communication with the top of the container, it is necessarily connected with it by a flexible pipe allowing place this pump in its housing as shown in Figure 1 of the document US-A-1,439,295.
- the object of the present invention is therefore to produce a device allowing, in an environment where there is a pressurized atmosphere and a gravitational force, to drain a viscous fluid container, which is of a very simple structure, easy to carry out, of a very low cost price, and which can be used by all, professionals or individuals.
- the present invention relates to a device allowing, in an environment where there is a pressurized atmosphere and a gravitational force, emptying a viscous fluid container as defined by claim 1.
- the device empties a container of viscous fluid like oil contained in the engine block of a motor vehicle or the like, in a environment where there is a pressurized atmosphere and a gravitational force, as in the ambient air reigning on Earth.
- This device comprises a container 1 with a wall 19 defining a volume main 2 able to contain viscous fluid, this container being shaped to be able to be placed in the ambient environment so that the volume main has an upper part 3 and a lower part 4.
- a partition wall 5 located in the main volume 2 defines, in this main volume, two first and second secondary volumes 6, 7, the first secondary volume 6 including at least a portion 9 of the portion high 3 of main volume 2.
- An orifice 8 is made in the partition wall 5 to put in communication the two first and second secondary volumes 6, 7, this orifice opening into the second secondary volume 7 in the portion 9 defined above of the upper part 3 of the main volume.
- the device further comprises a pump 10 comprising an inlet 11 and a discharge outlet 12.
- the pump is mounted in cooperation with the container 1, and more particularly with its wall 19 as will be described below, so that its suction inlet 11 is located in the first secondary volume 6 and that its delivery outlet 12 opens to the outside 13 of the container 1.
- the device also comprises a tube 14 comprising a mouth inlet 15 and an outlet mouth 16, and means 17 for mounting this tubing 14 in association with the container 1 so that its outlet mouth 16 is located in the second secondary volume 7 and that its inlet mouth 15 is located outside 13 of container 1, the end 18 of the tubing 14 comprising the inlet mouth 15 being shaped to be able to dive in the container to be drained.
- the end 18 of the tubing 14 comprising the inlet mouth 15 is flexible so that it can easily dive down to the bottom of as many containers as possible form as they are, and the means 17 defined above are advantageously constituted by a sealed passage 24 produced in the wall 19 of the container 1.
- This sealed passage is advantageously coupled with a plug. removable to allow the container 1 to be emptied when it is relatively full and thus be able to reuse the device for another drain.
- the device is arranged so that the secondary volume 7 defined above is divided into two first and second auxiliary volumes 21, 22, these two auxiliary volumes communicating one with the other by a constriction 23 preferably formed between the wall 19 of the container and the partition wall 5, this constriction constituting a significant pressure drop for viscous fluid.
- the first auxiliary volume 21 is located in the upper part 3 of the volume main 2 and the orifice 8 opens into this first auxiliary volume 21.
- the device includes a pump 10.
- this pump 10 comprises a body cylindrical 30, a first end 33 of which is tightly secured of the wall 19 of the container 1 and the other end 34 of which opens into the first secondary volume 6; a piston 35 slidably mounted in the body cylindrical 30; a rod 36 for translating the piston; and an valve 38 mounted in cooperation with the piston 35, this valve being “on” when the control rod 36 translates into the body cylindrical 30 in the direction indicated by arrow 61 in the figure, and “closed” when the control rod leaves the cylindrical body by translation indicated by arrow 62 in this same figure.
- the control rod 36 is no longer made so that it passes without sealing through an opening 31 made in the wall 19 of the container and that one 37 of its ends is constantly located outside 13 of container 1.
- the partition wall 5 is advantageously constituted by a cylindrical sleeve 40 of a length greater than that of the cylindrical body 30, this sleeve being mounted integral, at one of its ends 41, 42, of the wall 19 of the container 1 so that it either substantially concentric with the cylindrical body 30 delimiting, between its inner face 45 and outer face 46 of the cylindrical body, a first annular space 43, and by a plug 44 for sealingly closing the other end 42 of this sleeve 40.
- the first auxiliary volume 21 forms around the sleeve 40 a second annular cylindrical space 50 of the same thickness as the constriction defined above, this second annular space 50 being in fact, as visible in the figure, of a length less than the sleeve length 40.
- the device For safety and to obtain correct operation whatever the volume of the fluid to be drained, the device comprises a valve 55 mounted in cooperation with the orifice 8 so that this valve is "passing" in the direction of second secondary volume 7 to the first secondary volume 6.
- the valve 55 is constituted by a elastic ring 56 mounted in the first annular space 43 and by a stud shutter 57 mounted in cooperation with the ring 56 so that it is capable of close the orifice 8 under the elastic force exerted by this ring, and move away from this orifice when the ambient atmosphere is sucked in by the pump 10 to pass, as will be explained below, from the second secondary volume 7 to the first secondary volume 6.
- the device has a structure like that described above, it is advantageous that at least the container 1, the partition wall 5, the tubing 14 and the cylindrical body 30 are made of plastic, in particular by molding, which can only help to considerably reduce the price of manufacture of this device according to the invention.
- this device is used in an environment where there is a pressurized atmosphere and a gravitational force, by example on Earth, that container 1 is initially completely empty of any liquid and that one proposes to use it to drain the oil contained in the not shown engine block of a motor vehicle or the like.
- the end 18 of the pipe 14 is introduced into the engine block of so that its inlet mouth 15 dips into the oil, preferably until bottom of the engine block.
- control rod 36 is then moved back and forth comes along arrows 61 and 62 so that the piston 35 travels inside 32 of the cylindrical body 30.
- the valve 38 closes and creates a vacuum between the piston 35 and the inlet suction 11.
- the atmosphere that is in the cylindrical body 30 above of the piston is evacuated by the discharge outlet 12 formed, in the illustrated embodiment, through the opening 31.
- the atmosphere which is in the second secondary volume 7 is sucked up to enter the first secondary volume 6 by opening the valve 55.
- the depression which occurs in the second secondary volume 7 makes it possible to aspirate the oil contained in the block engine due to the pressure difference between the atmosphere outside the container 1 and which acts on the oil to be drained and that which reigns in the second secondary volume 7.
- the strangulation 23 creates a obstacle to the flow of oil, which prevents it from entering the first auxiliary volume 21 and therefore reach the level of the orifice 8. It is however note that even if oil gets into this first volume shutter 57 while the device is not in use prevents oil from flowing into the first secondary volume 6.
- the discharge outlet 12 of the pump is merged with the opening 31. Also, so that the atmosphere which is extracted from the container when the control rod 36 is pulled in accordance with the arrow 62, can exit outside the container 13, the section of the opening 31 is made so that it is greater than the cross section of the rod control 36 so that there is sufficient space between this rod control and the edge of the opening, as shown in the figure.
- the opening 31 could constitute a sealed passage for the control rod 36.
- the outlet of delivery 12 would be made separately by a breakthrough through the wall 19 of the container. This realization would be used if it was necessary that the rod 36 is perfectly maintained laterally during its translation.
- the wall 19 of the container 1 can for example include, as is known, a window made of a transparent material so that users can check the level of fluid in this container 1, so as not to exceed a determined level which is preferably defined below the level of the constriction 23.
- FIG. 2 represents a second embodiment of a device according to the invention, the main characteristics of which are defined above, in particular with regard to FIG. 1.
- the device comprises, as in the first embodiment, a pump 10 mounted in cooperation with the container 1, only part of which has been shown, so that its suction inlet 11 is located in the first secondary volume 6 and that its discharge outlet 12 opens to the outside 13 of the container.
- the pump 10 comprises a body of pump constituted by the partition wall 5 defined above in the description of the first embodiment, a piston 70 slidably mounted in the pump body 5 to delimit, in the first secondary volume 6, two first 71 and second 72 rooms, orifice 8 opening into the first chamber 71 by means of the valve 55, as in the first mode of realization according to figure 1.
- the piston 70 is shaped as a second valve so that it last valve is “passing” when the piston 70 moves in the body of pump when the volume of the first chamber 71 decreases and that of the second chamber 72 increases, and “plugging" when this piston moves from so that the volume of the first chamber increases and that of the first room decreases.
- the pump 10 also includes a control rod 73 for the translation piston 70 in pump body 5, one end 74 of this rod control being located outside 13 of container 1 passing through by a sealed sliding passage 75 the wall 76 of the container 1 separating the first room 71 and the outside 13, means 77 for communicating the second chamber 72 with the exterior 13 of the container 1, and valve means 78 having a "passing" direction only in the direction of the second chamber 72 towards the outside 13 of the container.
- the sliding sealed passage 75 is shown schematically by a breakthrough surrounded by a sealing bellows connecting the edge of this breakthrough and the piston 70, but it is quite obvious that this passage waterproof can be formed by other means, for example by a seal sealing ring or the like.
- the means 77 for put the second chamber 72 in communication with the exterior 13 of the container are constituted by a pipe 79 passing through the piston 70 and at at least partially the control rod 73 so that its two ends 80, 81 constantly open into the second chamber 72 and outside 13 of the container.
- the valve means 78 are mounted in cooperation with this pipe 79 for example at its end 81.
- Des valve means 78 like those defined above are well known in themselves and will not be described specifically here, for the sole purpose of simplify this description.
- the piston 70 shaped as a second valve comprises for example a piston body 82 of a outer section lower than the section of the first secondary volume 6, a circular groove 83 produced in this piston body, an annular seal 84 disposed in the circular groove, the outer annular section of the seal 84 being equal to the internal section of the first secondary volume 6 and its section inner ring being equal to the bottom section 85 of the groove 83, the width of the groove being greater than the thickness of the annular seal, and means 86 for communicating the circular groove 83 with the second bedroom 72.
- the piston 70 which reduces the volume of the second chamber 72.
- the piston 70 being shaped as a "shutter" valve when it moves in the direction of a reduction in the volume of the second chamber, it allows the air in this chamber 72 to be compressed and expelled, via line 79 and valve 78, towards the outside 13 of container 1.
- the piston 70 shaped as a second valve as illustrated in FIG. 2 works as follows:
Description
Claims (9)
- Dispositif permettant, dans un milieu où règnent une atmosphère sous pression et une force de gravitation, de vidanger un conteneur de fluide visqueux, comportant :un récipient (1) définissant un volume principal (2) apte à contenir ledit fluide visqueux, ledit récipient étant conformé pour être apte à être placé dans ledit milieu de façon que le volume principal comporte une partie haute (3) et partie basse (4),une pompe (10) comportant une entrée d'aspiration (11) et une sortie de refoulement (12),une tubulure (14) comportant une bouche d'entrée (15) et une bouche de sortie (16),des moyens (17) pour monter la tubulure (14) en association avec le récipient (1) de façon que ses bouches d'entrée (15) et de sortie (16) soit respectivement situées à l'extérieur et à l'intérieur du récipient (1), l'extrémité (18) de la tubulure (14) comportant la bouche d'entrée (15) étant conformée pour être apte à plonger dans le conteneur à vidanger,une paroi de séparation (5) pour délimiter, dans le volume principal (2), deux premier et second volumes secondaires (6, 7), le premier volume secondaire (6) englobant au moins une portion (9) de la partie haute (3) du volume principal (2), et un orifice (8) réalisé dans la paroi de séparation (5) pour mettre en communication les deux premier et second volumes secondaires (6, 7), ledit orifice débouchant dans le second volume secondaire (7) dans ladite portion (9) de la partie haute (3) du volume principal (2), ladite pompe (10) étant montée en coopération avec le récipient (1) de façon que son entrée d'aspiration (11) soit située dans le premier volume secondaire (6) et que sa sortie de refoulement (12) débouche à l'extérieur (13) du récipient (1), la bouche de sortie (16) de la tubulure (14) étant située dans le second volume secondaire (7),
- Dispositif selon la revendication 1, caractérisé par le fait que l'extrémité (18) de la tubulure comportant la bouche d'entrée est souple.
- Dispositif selon l'une des revendications 1 et 2, caractérisé par le fait qu'il comporte un premier clapet (55) monté en coopération avec l'orifice (8) de façon que cedit premier clapet soit "passant" dans le sens du second volume secondaire (7) vers le premier volume secondaire (6).
- Dispositif selon l'une des revendications 1 à 3, caractérisé par le fait que la pompe (10) comporte un corps cylindrique (30), une première extrémité (33) du corps cylindrique étant solidaire de façon étanche de la paroi (19) du récipient (1), ce récipient comportant une ouverture (31) pour mettre en communication l'intérieur (32) du corps cylindrique (30) et l'extérieur (13) du récipient, le corps cylindrique (30) débouchant à son autre extrémité (34) dans le premier volume secondaire (6) ; un premier piston (35) monté coulissant dans le corps cylindrique (30) ; une première tige de commande (36) de la translation du premier piston, une extrémité (37) de la première tige de commande étant située à l'extérieur (13) du récipient (1) en passant sans étanchéité par l'ouverture (31) ; et une valve (38) montée en coopération avec le premier piston (35), la valve étant "passante" lorsque la première tige de commande (36) pénètre par translation dans le corps cylindrique (30) et "fermée" lorsque la première tige de commande sort du corps cylindrique.
- Dispositif selon la revendication 4, caractérisé par le fait que la paroi de séparation (5) est constituée par un manchon cylindrique (40) d'une longueur supérieure à celle du corps cylindrique (30), le manchon étant monté solidaire, en une (41) de ses extrémités (41, 42), de la paroi (19) du récipient de façon qu'il soit sensiblement concentrique au corps cylindrique (30) en délimitant, entre sa face intérieure (45) et la face extérieure du corps cylindrique, un premier espace annulaire (43), et par un bouchon (44) pour fermer de façon étanche l'autre extrémité (42) du manchon.
- Dispositif selon la revendication 5, caractérisé par le fait que le premier volume auxiliaire (21) forme un second espace annulaire cylindrique (50) autour du manchon (40), ce second espace annulaire étant d'une longueur inférieure à la longueur du manchon.
- Dispositif selon la revendication 3, caractérisé par le fait que, ladite pompe (10) étant montée en coopération avec le récipient (1) de façon que son entrée d'aspiration (11) soit située dans le premier volume secondaire (6) et que sa sortie de refoulement (12) débouche à l'extérieur (13) du récipient (1), elle comporte un corps de pompe, cedit corps de pompe étant constitué par la paroi de séparation (5), un second piston (70) monté coulissant dans ledit corps de pompe pour délimiter, dans ledit premier volume secondaire (6), deux première et seconde chambres (71, 72), ledit orifice (8) débouchant dans la première chambre (71), ledit second piston (70) étant conformé en second clapet de façon que ce second clapet soit "passant" quand le piston se déplace dans le corps de pompe de façon que le volume de la première chambre diminue et celui de la seconde chambre augmente, et "obturant" quand le piston se déplace de façon que le volume de la première chambre augmente et celui de la première chambre diminue, une seconde tige de commande (73) de la translation dudit second piston dans ledit corps de pompe, une extrémité (74) de ladite seconde tige de commande étant située à l'extérieur (13) du récipient (1) en traversant par un passage étanche coulissant (75) la paroi (76) du récipient séparant la première chambre (71) et l'extérieur (13), des moyens (77) pour mettre en communication la seconde chambre (72) avec l'extérieur (13) dudit récipient (1), et des moyens de valve (78) présentant un sens "passant" uniquement dans le sens de la seconde chambre (72) vers l'extérieur (13) dudit récipient.
- Dispositif selon la revendication 7, caractérisé par le fait que les moyens (77) pour mettre en communication la seconde chambre (72) avec l'extérieur (13) dudit récipient sont constitués par une conduite (79) traversant ledit second piston (70) et au moins partiellement ladite seconde tige de commande (73) de façon que ses deux extrémités (80, 81) débouchent constamment respectivement dans la seconde chambre (72) et à l'extérieur (13) dudit récipient, lesdits moyens de valve (78) étant montés en coopération avec cettedite conduite (79).
- Dispositif selon l'une des revendications 7 et 8, caractérisé par le fait que ledit second piston (70) conformé en second clapet comprend un corps de piston (82) d'une section extérieure inférieure à la section dudit premier volume secondaire (6), une rainure circulaire (83) réalisée dans ledit corps de piston, un joint annulaire (84) disposé dans ladite rainure circulaire, la section annulaire extérieure du joint étant égale à la section intérieure du premier volume secondaire (6), la section annulaire intérieure dudit joint étant égale à la section du fond de la rainure, la largeur de ladite rainure étant supérieure à l'épaisseur dudit joint annulaire, et des moyens (86) pour mettre en communication la rainure circulaire avec la seconde chambre (72).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9814295 | 1998-11-16 | ||
FR9814295A FR2785894B1 (fr) | 1998-11-16 | 1998-11-16 | Dispositif permettant de vidanger un conteneur de fluide visqueux |
PCT/FR1999/002775 WO2000029725A1 (fr) | 1998-11-16 | 1999-11-12 | Dispositif permettant de vidanger un conteneur de fluide visqueux |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1131543A1 EP1131543A1 (fr) | 2001-09-12 |
EP1131543B1 true EP1131543B1 (fr) | 2003-06-04 |
Family
ID=9532711
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99972286A Expired - Lifetime EP1131543B1 (fr) | 1998-11-16 | 1999-11-12 | Dispositif permettant de vidanger un conteneur de fluide visqueux |
Country Status (7)
Country | Link |
---|---|
US (1) | US6390149B1 (fr) |
EP (1) | EP1131543B1 (fr) |
AT (1) | ATE242422T1 (fr) |
AU (1) | AU1167000A (fr) |
DE (1) | DE69908634T2 (fr) |
FR (1) | FR2785894B1 (fr) |
WO (1) | WO2000029725A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW515503U (en) * | 2002-04-04 | 2002-12-21 | Ming-Jang Chen | Drawing and sub-packaging device for liquid |
ES2564754T3 (es) * | 2013-03-01 | 2016-03-28 | Roman Taniel | Método y dispositivo para el funcionamiento de un motor diésel con combustibles en emulsión de composición variable |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1439295A (en) * | 1921-05-13 | 1922-12-19 | Craig Hugh | Pump |
CH386769A (de) * | 1961-05-19 | 1965-01-15 | Meier Ernst | Vorrichtung zum Absaugen des Motoröls aus der Ölwanne von Kraftfahrzeugmotoren |
AU620511B2 (en) | 1990-04-30 | 1992-02-20 | Tseng, Tien-Tsai | A portable oil suction device |
DE4445623C1 (de) * | 1994-12-21 | 1996-03-14 | Leopold Knestele | Handgerät zur Absaugung von Altöl aus Kraftfahrzeugen |
US5450924A (en) * | 1995-01-05 | 1995-09-19 | Tseng; Tien-Tsai | Portable oil suction device |
-
1998
- 1998-11-16 FR FR9814295A patent/FR2785894B1/fr not_active Expired - Fee Related
-
1999
- 1999-11-12 WO PCT/FR1999/002775 patent/WO2000029725A1/fr active IP Right Grant
- 1999-11-12 US US09/831,819 patent/US6390149B1/en not_active Expired - Fee Related
- 1999-11-12 EP EP99972286A patent/EP1131543B1/fr not_active Expired - Lifetime
- 1999-11-12 AU AU11670/00A patent/AU1167000A/en not_active Abandoned
- 1999-11-12 AT AT99972286T patent/ATE242422T1/de not_active IP Right Cessation
- 1999-11-12 DE DE69908634T patent/DE69908634T2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE69908634D1 (de) | 2003-07-10 |
FR2785894B1 (fr) | 2000-12-15 |
WO2000029725A1 (fr) | 2000-05-25 |
US6390149B1 (en) | 2002-05-21 |
FR2785894A1 (fr) | 2000-05-19 |
EP1131543A1 (fr) | 2001-09-12 |
DE69908634T2 (de) | 2004-04-29 |
AU1167000A (en) | 2000-06-05 |
ATE242422T1 (de) | 2003-06-15 |
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