EP1135589A1 - Flüssigkeitsdruckbeaufschlagungseinrichtung, insbesondere für brennstoffzusatzmittel - Google Patents
Flüssigkeitsdruckbeaufschlagungseinrichtung, insbesondere für brennstoffzusatzmittelInfo
- Publication number
- EP1135589A1 EP1135589A1 EP99925088A EP99925088A EP1135589A1 EP 1135589 A1 EP1135589 A1 EP 1135589A1 EP 99925088 A EP99925088 A EP 99925088A EP 99925088 A EP99925088 A EP 99925088A EP 1135589 A1 EP1135589 A1 EP 1135589A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- pump
- assembly
- assembly according
- additive
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/04—Feeding by means of driven pumps
- F02M37/08—Feeding by means of driven pumps electrically driven
- F02M37/10—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir
- F02M37/103—Mounting pumps on fuel tanks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/85978—With pump
- Y10T137/86075—And jet-aspiration type pump
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/85978—With pump
- Y10T137/86091—Resiliently mounted pump
Definitions
- the present invention relates to the field of drawing liquid from a tank.
- the present invention applies in particular, but not exclusively, to the transfer of additive from a specific tank on board a motor vehicle, to a fuel tank.
- the present invention now aims to improve the known liquid drawing devices.
- a liquid drawing assembly in particular for fuel additives, characterized in that it comprises a module comprising a housing forming a positive reserve, a pump arranged horizontally in the housing and support means which carry the pump near the bottom of the housing.
- the means forming the support of the pump define an elastic support.
- the support means are formed by a cradle molded on the housing.
- FIGS. 2 and 3 represent two schematic perspective views of the drawing assembly according to the present invention
- FIG. 4 represents a perspective view of the housing of this drawing assembly
- FIG. 5 represents another perspective view, seen from below, of the drawing assembly
- FIG. 6 represents a view in vertical section of the drawing assembly according to the cutting plane referenced VI-VI in FIG. 10,
- FIG. 7 represents a partial view in vertical section of the drawing assembly according to the cutting plane referenced VII-VII in FIG. 11,
- FIG. 8 represents another view in vertical section of the drawing assembly according to the cutting plane referenced VIII-VIII in FIG. 4,
- FIG. 9 shows a horizontal sectional view of the drawing assembly according to the cutting plane referenced IX-IX in Figure 10
- - Figure 10 shows partial views in vertical section along the cutting planes referenced XX on the figure 11, and
- FIG. 11 shows a top view of the drawing assembly according to the present invention.
- FIG. 1 The general architecture of a system according to the present invention designed for injecting additive into a fuel tank of a motor vehicle is shown diagrammatically in the appended FIG. 1.
- This fuel drawing assembly 12 is adapted to direct the fuel towards the carburetor and / or the injectors of the vehicle in order to supply the engine.
- Such an assembly 12 for drawing up and gauging fuel can be the subject of any conventional structure known to those skilled in the art and will therefore not be described in detail below.
- the fuel tank 10 is equipped with a base 14 adapted to be fixed to a wall of the tank 10, preferably the upper wall of the latter.
- the base 14 carries an injector 16 placed at the outlet of a pipe 18 which comes from an additive reservoir 50.
- the base 14 also carries a pressure regulator 20 adapted to return, via a line 22, the excess of additive coming from a line 18, if the additive pressure in this line 18 exceeds a predetermined threshold.
- a pressure regulator 20 adapted to return, via a line 22, the excess of additive coming from a line 18, if the additive pressure in this line 18 exceeds a predetermined threshold.
- the control of the opening time of the injector 16 makes it possible to simply control the flow rate at the outlet of the injector 16 and consequently the quantity of additive injected into the fuel tank 10.
- the injector 16 and the regulator 20 can be formed from any structure known to those skilled in the art.
- the regulator 20 is essentially formed by a valve, the movable shutter of which is integral with a membrane acted in an antagonistic manner, on the one hand by a calibrated spring, on the other hand by the pressure of additive from the conduit 18.
- the shutter of the regulator is detached from its seat to allow a bypass of additive from the conduit 18 in the return duct 22 associated with the output of regulator 20.
- the additive tank is referenced 50 in the attached figures.
- this additive reservoir 50 can be ensured by any suitable known means. It will be noted that according to the preferred embodiment in accordance with the present invention, the additive reservoir 50 is equipped on its upper wall with two conduits 52, 54.
- the conduit 52 is designed to be connected to the outlet of an additive reserve external to the vehicle, for example at a service station, to ensure the transfer of additive to the interior of the tank 50.
- the conduit 54 has its inlet preferably located at the maximum level of additive authorized inside the reservoir 50.
- This conduit 54 is connected during filling to a return conduit which opens into the aforementioned reserve.
- the conduit 54 or the associated associated conduit at the reserve is made at least partially of transparent material, the passage of additive inside this conduit 54 serves as a filling indicator for the reservoir 50.
- Such means for filling the additive reservoir 50 are defined in a request parallel patent filed in the name of the Applicant.
- conduits 18 and 22 connected respectively to the injector and to the outlet of the regulator 20, are connected and cooperate with a drawing module
- This drawing module 100 constitutes the basis of the present invention and will now be described in detail.
- the module 100 essentially comprises a housing 110 which forms an auxiliary reserve inside the tank 50, a pump 130, pump support means 140, a Venturi effect pump 150 and a sensor 160 of minimum level inside the tank 50.
- the housing 110 is formed by an elongated bowl or drawer, of rectangular outline, open upwards.
- the housing 110 comprises a flat and rectangular bottom 112 provided with two longitudinal walls 114, 116 and at least one transverse partition 118 orthogonal to the longitudinal walls and connected in leaktight manner to them.
- the end of the housing 110 opposite the partition 118 is tightly fixed to a vertical base 120.
- This preferably has dimensions greater than the section of the housing 110.
- the base 120 may constitute one of the end partitions of the additive tank 50.
- the fixing of the housing to the base 120 can be carried out by welding, for example by ultrasonic vibrations, hot blade or any equivalent means, or even by bonding.
- the base 120 carries, on the one hand an electrical connector 122 adapted to ensure the electrical connection of the pump 130 and the level sensor 160, and on the other hand two pipes 124, 126 intended to be connected respectively to the conduits 18 and 22 above.
- the pump 130 is preferably an electric pump whose rotor has its axis parallel to the bottom 112 of the housing 110, that is to say horizontal in use. This arrangement makes it possible to produce the module 100 with a small vertical bulk.
- the inlet of the pump 130 is equipped with a nozzle 132 which opens near the bottom of the housing 110.
- This nozzle 132 is preferably equipped with a primary filter.
- the pump 130 is placed in the support means 140. These preferably come from molding on the housing 110.
- these support means 140 comprise a cradle 142 in the form of a semi-cylindrical cup with a horizontal axis parallel to the bottom 112.
- the cradle 142 is located inside the housing 110 and open towards the top of it. It has an angle in the center greater than 180 °.
- the internal radius of the cradle 142 is complementary to the radius of the external casing of the electric pump 130.
- the cradle 142 receives the pump 130 by elastic deformation and retains the latter.
- one of the axial ends of the cradle 142 can be provided with a flange 144 perforated radially and complementary to a section of the pump 130 to axially retain the latter.
- each upper edge of the cradle 142 is connected to the upper edge of the longitudinal walls 114, 116 by a pair of elastic arches 145, 146, 147, 148.
- This pair of arches 145, 146, 147, 148 have the general shape of half-cylinder with concavity directed towards the bottom 1 12 of the housing.
- the upper edge of the vertical walls of the housing 100 are provided with a cantilever extension directed towards the center of the top of the housing 110 to confine the additive inside the housing 110 and avoid overflowing, in particular in the event of a turn or acceleration .
- the purpose of the Venturi effect pump 150 is to use the additive return coming from the conduit 22 to suck the additive into the tank 50 and to transfer it into the housing 110.
- the Venturi 150 effect pump can be formed from any conventional structure known to those skilled in the art. It has an inlet connected to the outlet of the duct 22, a suction inlet which communicates with the tank 50 and an outlet which opens into the housing 110.
- the body of the Venturi effect pump 150 is integrated by molding into the housing 110.
- a longitudinal duct 152 molded on the housing 110 at the connection zone between the bottom 112 and the longitudinal wall 116. At its front end this duct 152 is designed to be connected to the tubing 126 itself connected to the conduit 22. At its rear end, the conduit 152 opens into a vertical tube 154 molded with the housing 110 in the connection zone between the longitudinal wall 116 and the transverse partition 118.
- the rear end of the conduit 152 opens into an injector 156 sealingly attached to the base of the tube 154.
- the nozzle of the injector 156 is directed towards the top of the tube 154, which opens into the internal volume of the housing 110.
- the outlet of the Venturi effect pump 150 is thus formed by the top of the tube 154.
- the height of the positive reserve inside the housing 110 is equal to the height of the vertical tube 154.
- the quantity of additive introduced into the housing 110 via the tube 154 is equal to the sum of the flow rate coming from the return duct 22 and injected by the nozzle 156 and the flow rate sucked into the reservoir 50 via the oblique conduit 158.
- the outlet of the pump 130 is connected to the tube 124 by any suitable known means.
- the base 120 is provided on its internal face directed towards the inside of the housing 110 with a concentric nozzle 121 of the tube 124.
- a tubing 134 for output from the pump 130 is engaged in this nozzle 121. And the seal between the tubing 134 and the nozzle 121 is ensured by a lip seal 136 held by a cup 138.
- the pump 130 is associated with a conventional anti-parasite means 139.
- the level sensor 160 is adapted to indicate when the level of additive inside the tank 50 reaches a minimum threshold.
- Such a level sensor 160 can be the subject of numerous embodiments. By way of nonlimiting examples, it can be formed of a simple thermistor or of an electrical contact controlled by a float. If this thermistor is supplied for example at constant current, its cooling differs depending on whether the thermistor is placed in the air or immersed in the additive. Consequently, the measurement of the voltage across the thermistor makes it possible to directly indicate whether the thermistor is immersed in the additive or if the thermistor is placed in air, in which case the minimum threshold level is reached.
- module 100 according to the present invention constitutes an easily adaptable cartridge inside the additive tank 50.
- the cartridge constituted by the housing 110 can be fixed permanently, that is to say definitively, in the tank 50, for example by welding or gluing.
- the cartridge 110 can be fixed in a removable and removable manner in the tank 50. In the latter case, there are of course provided means ensuring the seal between the housing 110 and the tank 50.
- Such a module due to its low number of constituent parts has great simplicity, and therefore great reliability.
- the small vertical size of this module whose height is typically less than 70mm.
- the smallest dimension of the housing 110 is equal to the height thereof considered in the vertical direction, with reference to the normal position of use.
- the inlet of the Venturi effect pump 150 can be located in the immediate vicinity of the bottom of the reservoir 50, typically at a distance of less than 2mm.
- the present invention allows efficient drawing inside the tank 50, even at low additive level.
- the level sensor 160 can be provided inside the housing 110, for example on the nozzle 132 receiving the inlet filter of the pump.
- the volumetric level is that of the housing 110 and not that of the reservoir 50.
- a non-return valve is provided on the conduit 126.
- a deflector placed opposite the outlet of the jet pump 150, that is to say above the top of the vertical duct 154.
- These deflector means are preferably integrated into a cantilever extension 1160 of the partition 116.
- Such a deflector is designed to ensure self-priming of the jet pump 150, by initially returning fuel from the jet pump jet towards the inside of the venturi thereof, when the flow rate injected into the jet pump is less than a threshold.
- Such a deflector can be formed for example of a generally hemispherical cavity coaxial at the outlet of the jet pump 150 and concave in the direction thereof. An example of such a deflector is described in document FR-A-2753658 to which reference will usefully be made. For this reason, such a deflector will not be described in detail later.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9807574 | 1998-06-16 | ||
FR9807574A FR2779772B1 (fr) | 1998-06-16 | 1998-06-16 | Ensemble de puisage de liquide, notamment pour additif de carburant |
PCT/FR1999/001417 WO1999066188A1 (fr) | 1998-06-16 | 1999-06-15 | Ensemble de puisage de liquide, notamment pour additif de carburant |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1135589A1 true EP1135589A1 (de) | 2001-09-26 |
EP1135589B1 EP1135589B1 (de) | 2006-08-09 |
Family
ID=9527446
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99925088A Expired - Lifetime EP1135589B1 (de) | 1998-06-16 | 1999-06-15 | Flüssigkeitsdruckbeaufschlagungseinrichtung, insbesondere für brennstoffzusatzmittel |
Country Status (5)
Country | Link |
---|---|
US (1) | US6422266B1 (de) |
EP (1) | EP1135589B1 (de) |
DE (1) | DE69932736T2 (de) |
FR (1) | FR2779772B1 (de) |
WO (1) | WO1999066188A1 (de) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2830283B1 (fr) * | 2001-09-28 | 2004-04-16 | Marwal Systems | Reservoir pour vehicule automobile |
FR2834006B1 (fr) * | 2001-12-20 | 2004-04-16 | Marwal Systems | Dispositif embarque d'alimentation en carburant pour vehicule automobile |
FR2846713B1 (fr) | 2002-11-04 | 2006-03-10 | Marwal Systems | Dispositif de dosage d'additif pour carburant sur vehicule automobile |
DE602004017040D1 (de) * | 2003-11-07 | 2008-11-20 | Kraftstoffanlage für einen verbrennungsmotor | |
US7297256B2 (en) * | 2004-01-29 | 2007-11-20 | Fleet Guard, Inc. | Pressure gradient dosing system for fluid supply |
US7156991B2 (en) * | 2004-01-29 | 2007-01-02 | Fleetguard, Inc. | Liquid additive slow-release apparatus driven by a filter pressure gradient |
US7153422B2 (en) * | 2004-01-29 | 2006-12-26 | Fleetguard, Inc. | Liquid additive slow-release apparatus driven by a filter pressure gradient |
US7270088B2 (en) * | 2005-03-08 | 2007-09-18 | William Trace Whitehall | System and method for storage and delivery of a fuel additive to a fuel tank |
FR2886980A1 (fr) | 2005-06-09 | 2006-12-15 | Ti Fuel Systems Sas Soc Par Ac | Procede de dosage d'un additif a partir d'un systeme a additif pour carburant, ce systeme, systeme d'alimentation en carburant, et procede pour l'entretien d'un vehicule |
CN102700845B (zh) * | 2012-06-06 | 2014-02-26 | 余姚晟祺塑业有限公司 | 一种燃油添加剂用泵 |
US10458399B2 (en) * | 2016-12-30 | 2019-10-29 | Harry Stephen Matson | Precision fuel additive system |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4253428A (en) * | 1978-12-29 | 1981-03-03 | Billings Roger E | Hydrogen fuel systems |
GB8515487D0 (en) * | 1985-06-19 | 1985-07-24 | Towman Technical | Petrol engines |
JP2580021B2 (ja) * | 1988-12-07 | 1997-02-12 | 日産自動車株式会社 | 自動車用燃料タンクの旋回槽 |
DE3912773C1 (de) * | 1989-04-19 | 1990-07-12 | Daimler-Benz Aktiengesellschaft, 7000 Stuttgart, De | |
US5331994A (en) * | 1993-04-13 | 1994-07-26 | Bryan Iii John F | Fuel additive dispensing system |
FR2718795B1 (fr) * | 1994-04-15 | 1996-07-12 | Marwal Systems | Dispositif d'alimentation en carburant pour véhicule automobile comportant des moyens d'introduction d'additif dans le carburant. |
US5452701A (en) * | 1994-05-23 | 1995-09-26 | Walbro Corporation | Turbine fuel pump with fuel jet |
FR2724692B1 (fr) * | 1994-09-15 | 1997-01-24 | Marwal Systems | Ensemble de pompage incorporant un regulateur de pression, pour reservoir de carburant de vehicule automobile et reservoir ainsi equipe |
US5810039A (en) * | 1995-08-11 | 1998-09-22 | Solvay (Societe Anonyme) | Module for extracting fluid from a hollow vessel |
FR2747618B1 (fr) * | 1996-04-22 | 1998-06-05 | Peugeot | Dispositif de puisage de carburant a reserve dite positive et vehicule automobile equipe de ce dispositif |
FR2753658B1 (fr) * | 1996-09-26 | 1998-12-11 | Dispositif de puisage de carburant pour reservoir de vehicules automobiles | |
JP3698293B2 (ja) * | 1999-02-18 | 2005-09-21 | 株式会社デンソー | 回転装置支持構造及びそれを用いる燃料供給装置 |
-
1998
- 1998-06-16 FR FR9807574A patent/FR2779772B1/fr not_active Expired - Lifetime
-
1999
- 1999-06-15 EP EP99925088A patent/EP1135589B1/de not_active Expired - Lifetime
- 1999-06-15 DE DE69932736T patent/DE69932736T2/de not_active Expired - Lifetime
- 1999-06-15 US US09/720,044 patent/US6422266B1/en not_active Expired - Fee Related
- 1999-06-15 WO PCT/FR1999/001417 patent/WO1999066188A1/fr active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO9966188A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE69932736T2 (de) | 2007-08-09 |
WO1999066188A1 (fr) | 1999-12-23 |
FR2779772B1 (fr) | 2000-09-01 |
EP1135589B1 (de) | 2006-08-09 |
US6422266B1 (en) | 2002-07-23 |
DE69932736D1 (de) | 2006-09-21 |
FR2779772A1 (fr) | 1999-12-17 |
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