EP2716901A1 - Kraftstofffiltersystem - Google Patents

Kraftstofffiltersystem Download PDF

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Publication number
EP2716901A1
EP2716901A1 EP13184880.6A EP13184880A EP2716901A1 EP 2716901 A1 EP2716901 A1 EP 2716901A1 EP 13184880 A EP13184880 A EP 13184880A EP 2716901 A1 EP2716901 A1 EP 2716901A1
Authority
EP
European Patent Office
Prior art keywords
filtration
filter
fuel
prefiltration
reservoir
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.)
Withdrawn
Application number
EP13184880.6A
Other languages
English (en)
French (fr)
Inventor
Pierre Yves Lecoq
Patrice Le Tallec
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.)
PSA Automobiles SA
Original Assignee
Peugeot Citroen Automobiles SA
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 Peugeot Citroen Automobiles SA filed Critical Peugeot Citroen Automobiles SA
Publication of EP2716901A1 publication Critical patent/EP2716901A1/de
Withdrawn legal-status Critical Current

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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
    • F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
    • F02M37/0023—Valves in the fuel supply and return system
    • 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
    • F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
    • F02M37/32—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements

Definitions

  • the present invention relates to a fuel filtration system.
  • the invention relates to a fuel filtration system, intended to be interposed between a reservoir and an injection pump capable of delivering fuel to a heat engine of a vehicle, wherein fuel can be filtered selectively.
  • the present invention is intended to overcome the disadvantages of the prior art.
  • the subject of the invention is a fuel filtration system intended to be interposed between a reservoir and an injection pump capable of delivering fuel to a heat engine of a vehicle, in which fuel may be selectively filtered.
  • This filtration system comprises on the one hand a main filter adapted to be upstream of the pump and on the other hand a dispensing base which is upstream of the main filter, which is intended to be downstream of the tank, which comprises a device pre-filtration filter support and which comprises a valve for the selective filtration of the fuel either by the main filter alone in the absence of prefiltration filter on the support device, or by the main filter and a prefiltration filter when such a filter is supported by the support device equipping the base.
  • the valve is a pre-filtration downstream channel which can also connect the outlet mouth of the prefiltration filter support device with a mouth intended to be connected back to the reservoir. , in parallel with the connection with the mouth connected to the main filter.
  • the valve determines two groups of channels, each with an upstream channel and a downstream channel, one of the groups being in series filtration by having its channels dedicated to a series filtration by the filter. pre-filtration then by the main filter and the other of the groups being partially parallel filtration having its downstream pre-filtration channel which is capable of connecting the mouth leading to the output of the prefiltration filter support device with on the one hand the mouth intended to be connected back to the tank and on the other hand with the mouth connected to the main filter.
  • the base comprises a three-position distribution control button for the passage of fuel either through the direct passage channel, or by the group of series filtration channels, or by the group of partially parallel filtration channels.
  • the control knob depending on the actuation of an integral member of the prefiltration filter, can be controlled at its filtration position by the group of series filtration channels and its position of filtration by the group of partially parallel filtration channels, the button being in the neutral position for the passage of fuel through the direct passage channel in the absence of the prefiltration filter.
  • the invention also relates to a fuel supply system for a heat engine vehicle, comprising a reservoir, an injection pump capable of delivering fuel to the engine of the vehicle and a fuel filtration system. interposed between the reservoir and the pump, characterized in that the filtration system is according to the invention having its main filter upstream of the pump and its dispensing base which is downstream of the reservoir.
  • the filtration system is a main filtration inlet conduit allowing the base and the main filter to be remote and the system is characterized in that its dispensing base is supported by the tank and its main filtration inlet pipe shaped so that the tank can be remote from a motor compartment of the vehicle which houses the main filter near the injection pump.
  • the reference 10 designates a fuel supply system according to the invention, comprising a filtration system 14 which is provided with a valve in the form of hydraulic distributor 18 for various cases of filtration.
  • the distributor 18 is arranged in a base 22 distributing and filter support.
  • the fuel supply system 10 comprises, upstream to downstream of the fuel circuit in a vehicle: a tank 26, the filtration system 14, an injection pump 28, of the high pressure pump type and a fuel injection system.
  • injection 32 which comprises injectors 34 delivering fuel into the combustion chambers of a motor 36.
  • Pipes 38 connect on the one hand the filtration system 14 the high pressure pump 28 and on the other hand said high pressure pump 28 and the fuel injection system 32 in the engine.
  • a return line 39 connects for example the injection system 32 to the tank 26 for the fuel that is delivered by the high pressure pump 28 and which is not used completely by the injection system to supply the fuel. engine.
  • the reservoir 26 is conventionally equipped with a low pressure pump 46, as shown in FIG. figure 3A for example.
  • the filtration system 14 according to the invention is supplied with fuel by the low pressure pump 46.
  • the reservoir 26 supports the dispenser base 22. Inside the reservoir, a supply line 48 is dedicated to the connection of the low pressure pump 46 at the dispenser base 22.
  • the reservoir 26 is equipped with an inner line 52 of auxiliary fuel return.
  • the filtration system 14 comprises a main filter 50 of fine filtration type, immediately upstream of the high pressure pump 28.
  • This fine filter 50 is of a type known to filter good quality fuel such as that distributed for example in the West of Europe.
  • a fine filtration inlet line 54 connects the base 22 and said fine filter.
  • the fine filter 50 should be oversized to cope with the greater need for filtration, to the detriment of the cost of the filter and its ease of installation near the engine, in an often restricted environment. Since a fine filter 50 is not optimum for good filtration efficiency, a coarser pre-filtration filter must be added upstream of the fine filter to retain the larger particles such as dust or small grains of sand resulting from rolling over. tracks.
  • the filtration system 14 comprises, as shown in FIG. figure 1 , only the fine filter 50, without the use of prefiltration filter 56. This is a first mode of use of the filtration system 14, for a first type of vehicle adapted to the first geographical areas.
  • the system of filtration 14 comprises, as shown in FIG. figure 2 , the fine filter 50 and an additional prefiltration filter 56 upstream of said fine filter. This is a second mode of use of the filtration system 14, for a second type of vehicle adapted to the second geographical areas.
  • the base 22 may thus receive a prefiltration filter 56 in which fuel passes, in the case of the second mode of use of the filtration system 14, or may also be devoid of it, in the case of the first mode of use of said system.
  • a prefiltration filter 56 in which fuel passes, in the case of the second mode of use of the filtration system 14, or may also be devoid of it, in the case of the first mode of use of said system.
  • the figure 6 , the figure 3A , the figure 3B and the figure 3C illustrate an example of distributor 18 and its internal channels.
  • the base 22 is equipped with a filter support sleeve 22M, this sleeve being of conventional type for sealingly receiving and fixing the prefiltration filter 56.
  • a prefiltration inlet duct 22N and a prefiltration outlet duct 22S are arranged in the base. These ducts 22N and 22S open on the one hand into the sleeve 22M through orifices 22R for connection with said prefiltration filter 56 and on the other hand in the mouths 18B of the body 18C of the dispenser.
  • the body 18C of the distributor 18 also has two other mouths 18B to correspond to the supply line 48 and the return line 52 located in the reservoir.
  • the body 18C of the distributor 18 also has another mouth 18B to correspond with the fine filtration inlet pipe 54 downstream of the base.
  • a manual knob 58 is arranged on the base 22 being integral with the piston 18P of the distributor 18 to select the various filtering possibilities of the filtration system 14, according to the positions of said distributor.
  • the distributor 18 occupies a position characterized as neutral to which the fuel passes from the low pressure pump 46 to the main filter 50, through a passage channel direct 18D which connects the supply line 48 in the reservoir to the fine filtration inlet pipe 52 downstream of the base 22 as shown for example in the figure 3A .
  • the direct passage channel 18D is in the middle of a piston 18P of the distributor.
  • the neutral position of the distributor 18 is referenced "0" for the position indication of a manual button 58 of the distributor control.
  • This manual button 58 here makes it possible to seal the sleeve 22M in the absence of a prefiltration filter, with a direct sealed passage of the fuel directly from the reservoir to the main filter 50.
  • the distributor 18 described hereinafter is in two other positions. adding to the neutral position.
  • the distributor 18 has other channels in its piston 18P. These channels are in two groups corresponding to two positions adding to the neutral position of the distributor. It is a group of channels for a qualified position of series and a position qualified as partially parallel.
  • the piston 18P of the distributor 18 determines a series 66B pre-filtration upstream channel ( figure 6 ) which is shaped to connect the supply line 48 with the input conduit 22N of the base. Further, in the piston 18P, a series pre-filtration downstream channel 72B is shaped to connect the outlet conduit 22R of the base with the fine filtration inlet pipe 54.
  • the button 58 of the distributor 18 is at its serial position referenced "1" at the Figure 4B with the piston that is laterally offset from the neutral position.
  • This series filtration makes it possible to relieve the fine filter 50 of the largest impurities contained in the fuel to be filtered, these large impurities being trapped in the prefiltration filter 56 as the motor is supplied.
  • the piston 18P of the distributor 18 determines a partially parallel pre-filtration upstream channel 66C which is shaped to connect the supply line 48 with the inlet conduit 22N of the base.
  • a downstream channel 72C partially parallel pre-filtration is shaped to connect the outlet duct 22R of the base with the fuel return pipe 52 on the one hand and the pipe on the other hand fine filtration inlet 54.
  • the prefiltration filter 56 when the prefiltration filter 56 is present on the base 22 and for the partially parallel filtration in the filtration system 14, all the fuel intended to feed the high pressure pump 28 is filtered by the filter pre-filtration 56 then by the fine filter 50 but, in addition to this fuel, an additional quantity of fuel delivered by the low pressure pump 46 is filtered by the prefiltration filter 56 before returning to the tank.
  • the prefiltration filter 56 thus operates both in series with the fine filter 50 for a portion of the fuel delivered by the low pressure pump 46 and in parallel for the other part of the fuel delivered by this low pressure pump. It is therefore a partially parallel filtration and partially in series.
  • the button 58 of the distributor 18 is in its partially parallel position referenced "2" to the figure 4C with the piston that is laterally offset from the neutral position.
  • This partially parallel filtration not only makes it possible to relieve the fine filter 50 of the largest impurities contained in the fuel to be filtered, these large impurities being trapped in the prefiltration filter 56 as and when the engine is supplied, but also provide additional cleaning of the fuel in the prefiltration filter 56 in addition to the fuel sucked by the main filter 50 for the supply of the high pressure pump 28 and the motor 36 of the vehicle.
  • the filtration rate is thus increased and a certain amount of filtered fuel is independent of the flow required to supply the engine.
  • the use of the main filter 50 and the use of the prefiltration filter 56 with a partial return of fuel to the reservoir makes it possible to generate a multi-pass filtering effect allowing the constant improvement of the cleanliness of the fuel in the tank. .
  • a flow control device may be provided on the tank return for the fuel from the downstream partially prefiltered channel 72C. This flow control is intended to ensure the supply of fuel priority to the mouth connected to the main filter.
  • the equipment of its filtration system 14 is chosen according to its geographical area of marketing which implies either the presence of the only fine filter 50 or the need to use a prefiltration filter 56 in addition to said fine filter.
  • the fine filter 50 and the base 22 are the same for all vehicles, regardless of the geographical marketing area.
  • only end filter 50 equips the vehicle generically at the factory. Then, once the geographical destination is fixed it is either ready to be marketed in the state with only these filters, or it is equipped with prefiltration filter 56 before marketing, by the sales network or other importer.
  • the prefiltration filter 56 can be added also in case of export during the life of the vehicle.
  • the base has its sleeve 22M which remains free.
  • the distributor 18 must therefore close the duct inlet 22N and outlet duct 22S by closing the corresponding mouths 18B in the body 18C of the distributor.
  • An operator positions for example by hand or with the aid of a suitable tool the manual control button 58 to its neutral position referenced "O" to the Figure 4A .
  • the direct passage channel 18D is used to pass fuel from the tank 26 to the high pressure pump 28 via the fine filter 50 which is the only fuel filter in this case.
  • the mounting of the filtration system 14 provides that the operator installs the prefiltration filter 56 in the sleeve 22M of the base 22 of distribution.
  • the manual control knob 58 is positioned either at its serial position referenced "1" as shown in FIG. Figure 4B for the series filtration which is schematized at the figure 3B , or at its partially parallel position referenced "2" as shown in FIG. figure 4C for partially parallel filtration and that the figure 3C schematically.
  • the distributor 18 can when in its positions out of its neutral may include locking means of the prefiltration filter 56 to prevent removal and ensure the tightness of the hydraulic circuit.
  • the dispenser base 22 is advantageous because it allows the use of three filtration configurations according to the desired filtration quality.
  • the fine filter 50 is common to all geographical areas. The management of vehicle parts for different geographical areas is simplified.
  • the prefiltration filter 56 comprises a control pin 56P for the button 58 serving to position the piston 18P in the dispenser.
  • the button 58 has a central notch 58C that can be moved by the pin 56P during the rotation of the filter 56 to its mounting in the sleeve 22M of the base.
  • the button 58 is pre-positioned by default in neutral position as shown in FIG. Figure 5A .
  • the prefiltration filter 56 When the prefiltration filter 56 is required, it is brought to be approached to the sleeve 22M, the pin 56P being in correspondence of the notch 58C while the button 58 is in the neutral position. Then, the filter 56 is rotated in the sleeve 22M, being for example simultaneously locked, and the pin 56P, engaged in the notch 58C, moves the button 58 is in serial position, as shown in FIG. Figure 5B at its partially parallel position as shown in FIG. Figure 5C .
  • the positioning of the button 58 is simultaneous with the mounting of the prefiltration filter.
  • the connection through the filtration inlet pipe 54 allows the base and the main filter to be distant, or deported relative to one another. other, for example the length separating the reservoir 26 at the rear of a vehicle and the main filter 50 at the front of the vehicle in the engine compartment housing said main filter near the engine 36 and its injection system 32.
  • various pipes and fittings make up this pipe.
  • the filtration system 14 allows both the flexibility of use for selective filtration and ease of implantation and sizing of the main filter seconded if necessary by the prefiltration filter.
  • the prefiltration filter replacement program may be different from the replacement program of the fine filtration main filter.
  • the dispenser is bistable manually controlled, in the neutral position for the absence of prefiltration and the serial filtration position.
  • bistable dispenser allows the neutral position for the absence of prefiltration and the partially parallel filtration position.
  • any filter support device is considered in place of the sleeve equipping the distribution base.
  • any valve is considered in place of the piston-shaped spool valve equipping the distribution base for the selective filtration of fuel.
  • the filtration system can be used for a destination other than a motor vehicle, for example for a heat engine machine that can be used in different geographical areas with different fuel qualities or different environments for example with more or less dust or sand.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
EP13184880.6A 2012-10-04 2013-09-18 Kraftstofffiltersystem Withdrawn EP2716901A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1259414A FR2996603B1 (fr) 2012-10-04 2012-10-04 Systeme de filtration de carburant

Publications (1)

Publication Number Publication Date
EP2716901A1 true EP2716901A1 (de) 2014-04-09

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ID=47295043

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13184880.6A Withdrawn EP2716901A1 (de) 2012-10-04 2013-09-18 Kraftstofffiltersystem

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EP (1) EP2716901A1 (de)
FR (1) FR2996603B1 (de)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5851264A (ja) 1981-09-18 1983-03-25 Hitachi Zosen Corp ディ−ゼル機関燃料油前処理装置
DE8805945U1 (de) * 1988-05-04 1988-07-28 Amtec Kistler GmbH, 8905 Mering Filteranordnung in einer Strömungsmittelleitung
EP1136689A2 (de) * 2000-03-21 2001-09-26 Mannesmann VDO Aktiengesellschaft Fördereinrichtung zum Fördern von Kraftstoff
US20040118764A1 (en) * 2002-12-20 2004-06-24 Miller Terry L. Multiple fuel filter pump module
EP1826393A1 (de) * 2006-02-22 2007-08-29 Mann+Hummel Gmbh Filtersystem für Flüssigkeiten
DE102007056667A1 (de) * 2007-11-24 2009-05-28 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Filtereinrichtung
DE102007056675A1 (de) * 2007-11-24 2009-05-28 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Kraftfahrzeug
US20100154754A1 (en) * 2008-12-19 2010-06-24 Rhett Dakota Ringenberger Systems and methods for filtering fuel

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5851264A (ja) 1981-09-18 1983-03-25 Hitachi Zosen Corp ディ−ゼル機関燃料油前処理装置
DE8805945U1 (de) * 1988-05-04 1988-07-28 Amtec Kistler GmbH, 8905 Mering Filteranordnung in einer Strömungsmittelleitung
EP1136689A2 (de) * 2000-03-21 2001-09-26 Mannesmann VDO Aktiengesellschaft Fördereinrichtung zum Fördern von Kraftstoff
US20040118764A1 (en) * 2002-12-20 2004-06-24 Miller Terry L. Multiple fuel filter pump module
EP1826393A1 (de) * 2006-02-22 2007-08-29 Mann+Hummel Gmbh Filtersystem für Flüssigkeiten
DE102007056667A1 (de) * 2007-11-24 2009-05-28 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Filtereinrichtung
DE102007056675A1 (de) * 2007-11-24 2009-05-28 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Kraftfahrzeug
US20100154754A1 (en) * 2008-12-19 2010-06-24 Rhett Dakota Ringenberger Systems and methods for filtering fuel

Also Published As

Publication number Publication date
FR2996603B1 (fr) 2014-11-14
FR2996603A1 (fr) 2014-04-11

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