FR2507691A1 - Diesel engine fuel feed system - has electrical heating elements in filter surfaces to prevent blockage (AT 15.07.82) - Google Patents
Diesel engine fuel feed system - has electrical heating elements in filter surfaces to prevent blockage (AT 15.07.82) Download PDFInfo
- Publication number
- FR2507691A1 FR2507691A1 FR8111553A FR8111553A FR2507691A1 FR 2507691 A1 FR2507691 A1 FR 2507691A1 FR 8111553 A FR8111553 A FR 8111553A FR 8111553 A FR8111553 A FR 8111553A FR 2507691 A1 FR2507691 A1 FR 2507691A1
- Authority
- FR
- France
- Prior art keywords
- filter
- fuel
- heating element
- diesel engine
- heating elements
- 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
- 239000000446 fuel Substances 0.000 title claims abstract description 25
- 238000010438 heat treatment Methods 0.000 title claims abstract description 21
- 230000008018 melting Effects 0.000 claims abstract description 6
- 238000002844 melting Methods 0.000 claims abstract description 6
- 239000012188 paraffin wax Substances 0.000 claims description 11
- 238000001914 filtration Methods 0.000 claims description 10
- 238000005086 pumping Methods 0.000 claims description 9
- 239000002283 diesel fuel Substances 0.000 claims description 6
- 238000005485 electric heating Methods 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 238000011045 prefiltration Methods 0.000 abstract 1
- 238000002347 injection Methods 0.000 description 8
- 239000007924 injection Substances 0.000 description 8
- 238000009434 installation Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000004927 fusion Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D33/00—Controlling delivery of fuel or combustion-air, not otherwise provided for
- F02D33/003—Controlling the feeding of liquid fuel from storage containers to carburettors or fuel-injection apparatus ; Failure or leakage prevention; Diagnosis or detection of failure; Arrangement of sensors in the fuel system; Electric wiring; Electrostatic discharge
- F02D33/006—Controlling the feeding of liquid fuel from storage containers to carburettors or fuel-injection apparatus ; Failure or leakage prevention; Diagnosis or detection of failure; Arrangement of sensors in the fuel system; Electric wiring; Electrostatic discharge depending on engine operating conditions, e.g. start, stop or ambient conditions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/13—Supported filter elements
- B01D29/15—Supported filter elements arranged for inward flow filtration
- B01D29/21—Supported filter elements arranged for inward flow filtration with corrugated, folded or wound sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/18—Heating or cooling the filters
-
- 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
- F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
- F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
- F02M31/12—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating electrically
- F02M31/125—Fuel
-
- 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
- F02M37/0047—Layout or arrangement of systems for feeding fuel
-
- 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
- F02M37/30—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by heating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Filtration Of Liquid (AREA)
Abstract
Description
L'invention concerne un dispositif de pompage de carburant, principalement du carburant Diesel, muni d'un conduit d'aspiration, d'un filtre, de préférence un filtre préliminaire et (ou) un filtre principal, et éventuellement d'une pompe aspirante, dans ladite installation, un élément chauffant au moins, de préférence électrique, étant prévu dans la surface filtrante du filtre du circuit de pompage du carburant. The invention relates to a device for pumping fuel, mainly diesel fuel, provided with a suction pipe, a filter, preferably a preliminary filter and / or a main filter, and optionally with a suction pump. , in said installation, at least one heating element, preferably electrical, being provided in the filtering surface of the filter of the fuel pumping circuit.
Il est bien connu que, à basse température extérieure et pour certains carburants, comme le carburant Diesel, des dépôts de paraffine se constituent et recouvrent les surfaces filtrantes et autres étranglements. It is well known that, at low outside temperature and for certain fuels, such as diesel fuel, paraffin deposits build up and cover the filtering surfaces and other throttles.
Les firmes pétrolières adaptent la limite de refroidissement des carburants, par le choix adéquat des composants, aux conditions climatiques particulières du lieu où ils devront être employés. The oil companies adapt the cooling limit of fuels, by the appropriate choice of components, to the particular climatic conditions of the place where they will be used.
La norme ÖNORM C 1104 définit par exemple la limite de refroidissement d'un carburant Diesel exclusivement d'après le Cold-Filter Plugging Point (CFPP) et fixe cette valeur extreme l'été (du ler avril au 30 septembre) à +5"C et pour lthiver (du 1er octobre au 31 mars) à -150C. Pour établir le CFPP, on établit dans un équipement normalisé chaque température à laquelle une quantité définie de carburant refroidi dans un mélange réfrigérant, sous pression déterminée, est aspirée au moyen d'un filtre à ouverture de mailla normalisée. The ÖNORM C 1104 standard defines for example the cooling limit of a Diesel fuel exclusively according to the Cold-Filter Plugging Point (CFPP) and fixes this extreme value in summer (from April 1 to September 30) at +5 " C and for winter (from October 1 to March 31) at -150 C. To establish the CFPP, each temperature at which a defined quantity of fuel cooled in a refrigerant mixture, under determined pressure, is sucked up is established in standard equipment. a filter with normalized mesh opening.
Cette valeur doit donner des renseignements sur les perturbations occasionnées par les dépôts de paraffine dans les conduits et les filtres. This value should give information on the disturbances caused by paraffin deposits in the conduits and filters.
Naturellement pour des raisons économiques, la normalisation de la limite de refroidissement peut ne pas correspondre aux valeurs pratiques de basses températures, de sorte que l'on rencontre des difficultés dans certains cas même en observant la norme comme cela s'est avéré plusieurs fois dans la pratique. Naturally for economic reasons, the normalization of the cooling limit may not correspond to the practical values of low temperatures, so that one encounters difficulties in certain cases even by observing the standard as it has been shown several times in the practice.
Dans un dispositif déjà connu de l'art antérieur, on prévoit un filtre muni d'une surface filtrante chauffante. In a device already known in the prior art, there is provided a filter provided with a heating filter surface.
L'élément chauffant, sous forme d'un fil résistant électrique couvre la totalité de la surface filtrante, c'est-à-dire que la totalité de la surface filtrante est réchauffée.The heating element, in the form of an electric resistant wire covers the whole of the filtering surface, that is to say that the whole of the filtering surface is heated.
Ce filtre nécessite un tel besoin d'énergie que celui-ci ne peut être assuré dans un véhicule sans un apport extérieur d'énergie (Brevet des Etats-Unis d'Amérique 2 635 174). This filter requires such a need for energy that it cannot be ensured in a vehicle without an external supply of energy (Patent of the United States of America 2,635,174).
A basse température la capacité de la batterie du véhicule tombe si bas qu'il y a à peine suffisamment d'énergie pour réchauffer la totalité du flux du carburant. At low temperatures, the vehicle's battery capacity drops so low that there is barely enough energy to heat the entire flow of fuel.
L'invention a pour objet de diminuer le besoin en énergie pour le réchauffement du carburant, tout en garantissant le pompage du carburant. The object of the invention is to reduce the energy requirement for heating the fuel, while guaranteeing fuel pumping.
Conformément à l'invention ce résultat est atteint au moyen d'un dispositif de type décrit précédemment, dans lequel pour réaliser une fusion partielle des inévitables dépôts de paraffine du carburant dans le filtre, l'élément chauffant couvre seulement une partie (5 à 50% par exemple) de la surface filtrante de la cartouche filtrante en forme d'étoile. In accordance with the invention, this result is achieved by means of a device of the type described above, in which to achieve partial melting of the inevitable deposits of paraffin from the fuel in the filter, the heating element covers only a part (5 to 50 % for example) of the filter surface of the star-shaped filter cartridge.
Grâce à cette mesure la surface filtrante ou tout autre point critique sur le parcours du carburant peut, pendant ou après le démarrage à froid par basse température extérieure, être réchauffée partiellement et instantanément au moyen d'un faible apport d'énergie évitant ainsi un blocage occasionné dans tous les cas par les dépôts de paraffine. Thanks to this measure, the filtering surface or any other critical point on the fuel path can, during or after cold starting at low outside temperature, be partially and instantly reheated by means of a low energy input, thus avoiding blockage. caused in all cases by paraffin deposits.
Il se produit alors une fusion de la paraffine sur une surface filtrante limitée pour laquelle il est seulement nécessaire d'élever la température au dessus du point de fusion du dépôt de paraffine, mais sans devoir prolonger l'échauffement au delà de ce point, ni échauffer la totalité du carburant. A paraffin fusion then occurs on a limited filtering surface for which it is only necessary to raise the temperature above the melting point of the paraffin deposit, but without having to prolong the heating beyond this point, nor heat all the fuel.
Dans ce mode de réalisation, il ne faut qu'une faible quantité d'énergie, qui peut être prélevée sur la batterie d'un véhicule, même à basse température, sans entraver le démarrage. In this embodiment, only a small amount of energy is required, which can be taken from the battery of a vehicle, even at low temperature, without hampering starting.
La durée de fonctionnement nécessaire de l'élément chauffant est réalisée par le fait que l'élément chauffant du filtre est commandé ou réglable de préférence au moyen d'un relais temporisé. Il est bien entendu possible de commander manuellement la mise en marche ou l'arrêt de l'élément chauffant. The necessary operating time of the heating element is achieved by the fact that the heating element of the filter is controlled or adjustable preferably by means of a time relay. It is of course possible to manually control the switching on or off of the heating element.
On comprendra mieux l'invention à l'aide de la description ci-après, en référence aux dessins annexés dans lesquels
- la Figure 1 représente un schéma du dispositif selon l'invention
- la Figure 2 est une vue en perspective, agrandie, du filtre principal (5) du dispositif de la figure 1 ;
- la Figure 3 représente un filtre de la pompe aspirante ;
- la Figure 4 représente une pompe aspirante avec la poche à eau et le filtre
- la Figure 5 est une section sortie et agrandie de la figure 4.The invention will be better understood using the description below, with reference to the accompanying drawings in which
- Figure 1 shows a diagram of the device according to the invention
- Figure 2 is an enlarged perspective view of the main filter (5) of the device of Figure 1;
- Figure 3 shows a filter of the suction pump;
- Figure 4 shows a suction pump with the water bag and the filter
- Figure 5 is an extended and enlarged section of Figure 4.
L'installation représentée Figure 1 pour le pompage du carburant Diesel d'un réservoir (1) vers la pompe d'injection (2) d'un moteur diesel non représenté comprend principalement une pompe aspirante (3) qui est installée sur la pompe à injection (2) du moteur diesel, un filtre primaire (.4), et un filtre principal (5) situé sur le-circuit de pompage du carburant entre la pompe aspirante (3) et la pompe d'injection (2). The installation shown in Figure 1 for pumping diesel fuel from a tank (1) to the injection pump (2) of a diesel engine not shown mainly comprises a suction pump (3) which is installed on the pump injection (2) of the diesel engine, a primary filter (.4), and a main filter (5) located on the fuel pumping circuit between the suction pump (3) and the injection pump (2).
La pompe aspirante (3) aspire le carburant par un conduit d'aspiration (6) et un filtre grossier (7) disposé à l'intérieur du réservoir (1) et le refoule par un conduit de refoulement (8) vers le filtre principal (5), puis vers la pompe d'injection (2). De la pompe à injection (2), le carburant parvient de manière en soi connue à l'injecteur (IO) par des conduits d'injection (9), dont un seul est représenté. The suction pump (3) sucks the fuel through a suction line (6) and a coarse filter (7) arranged inside the tank (1) and discharges it through a discharge line (8) to the main filter (5), then to the injection pump (2). From the injection pump (2), the fuel reaches the injector (IO) in a manner known per se by injection pipes (9), only one of which is shown.
Un conduit by-pass (11) assure le retour du filtre principal (5) au réservoir (1). Dans le conduit by-pass (11) se trouve une soupape de refoulement (12) qui est réglée sur la pression d'admission de la pompe d'injection. A bypass duct (11) ensures the return of the main filter (5) to the tank (1). In the bypass duct (11) there is a discharge valve (12) which is adjusted to the inlet pressure of the injection pump.
Pour économiser de la puissance dans les filtres, la soupape (12) ou une autre soupape du conduit by-pass (11) peut être fermée pendant le cycle de démarrage et le temps de chauffe du moteur. To save power in the filters, the valve (12) or another valve in the bypass duct (11) can be closed during the start-up cycle and the engine warm-up time.
Dans le filtre primaire (4), dans le filtre principal (5), et dans le filtre grossier (7), sont prévus des éléments électriques chauffants (13), (14), (15), qui sont mis en tension par un circuit d'alimentation (16) et commandés par un interrupteur (17), qui est actionné par un capteur de température installé dans le conduit de refoulement (8) entre le filtre principal et la pompe d'injection (2). In the primary filter (4), in the main filter (5), and in the coarse filter (7), there are provided electric heating elements (13), (14), (15), which are tensioned by a supply circuit (16) and controlled by a switch (17), which is actuated by a temperature sensor installed in the discharge pipe (8) between the main filter and the injection pump (2).
Comme le montre la figure 2, l'élément chauffant (13) du filtre principal (5) est formé d'un fil de résistance, qui est encastré ou enroulé dans la surface filtrante de la cartouche filtrante (18) en forme d'étoile, l'élément chauffant (13) couvrant seulement, par ce moyen, une partie de la surface fil trante. As shown in Figure 2, the heating element (13) of the main filter (5) is formed by a resistance wire, which is embedded or wound in the filtering surface of the star-shaped filter cartridge (18) , the heating element (13) covering only, by this means, a part of the wire surface.
La Figure 3 montre une variante de mise en oeuvre du dispositif, dans laquelle un élément chauffant (19), sous forme d'un fil de résistance électrique est enroulé autour d'une cartouche filtrante cylindrique (20) et couvre également, par ce moyen, seulement une partie de la surface filtrante. Figure 3 shows an alternative embodiment of the device, in which a heating element (19) in the form of an electrical resistance wire is wound around a cylindrical filter cartridge (20) and also covers, by this means , only part of the filter surface.
La figure 5 montre une réalisation analogue dans laquelle un élément chauffant (21) sous forme d'un fil de résistance électrique effectue 3 spires autour de la cartouche filtrante cylindrique (22). L'extrémité libre de l'élément chauffant (21) est reliée à la masse par la face interne du boitier métallique du filtre (23), et, pour permettre le passage du fil, dénudé ou non isolé,au-travers du boitier du filtre (23), ledit fil est isolé électriquement du boitier métallique du filtre (23) au moyen d'une gaine isolante. Naturellement on peut employer aussi des fils isolés appropriés. Figure 5 shows a similar embodiment in which a heating element (21) in the form of an electrical resistance wire performs 3 turns around the cylindrical filter cartridge (22). The free end of the heating element (21) is connected to ground by the internal face of the metal housing of the filter (23), and, to allow the passage of the wire, stripped or not insulated, through the housing of the filter (23), said wire is electrically isolated from the metal housing of the filter (23) by means of an insulating sheath. Of course, suitable insulated wires can also be used.
Suivant les conditions de fonctionnement, en particulier les conditions de température extérieure sous lesquelles le moteur devra démarrer, l'élément chauffant couvre de préférence 5 à 50 % de la surface filtrante pour garantir la fusion partielle et de courte durée de la couche de paraffine, déposée avec une demande en énergie la plus faible possible. Depending on the operating conditions, in particular the outside temperature conditions under which the engine must start, the heating element preferably covers 5 to 50% of the filtering surface to guarantee the partial and short-term melting of the paraffin layer, filed with the lowest possible energy demand.
Selon le dispositif de l'invention, il est possible de réaliser la fusion, par des moyens électriques, dans des zones bien définies sur les surfaces critiques des filtres en particulier sur le filtre à carburant de la pompe aspirante du carburant (3). According to the device of the invention, it is possible to carry out the fusion, by electrical means, in well-defined zones on the critical surfaces of the filters, in particular on the fuel filter of the fuel suction pump (3).
Puisqu'il ne s'agit pas de réchauffer une plus grande quantité de carburant mais seulement de faire fondre la paraffine sur des surfaces limitées, le besoin en puissance est extrêmement faible et peut être prélevé sur la batterie sans problème. Since it is not a question of heating a larger quantity of fuel but only of melting the paraffin on limited surfaces, the power requirement is extremely low and can be taken from the battery without problem.
Au cours des essais, 30 Watts répartis sur une surface annulaire de 5cm2 environ, déjà largement calculés, produisent un déblocage instantané de la circulation du carburant, malgré le blocage total existant précédemment par la paraffine. During the tests, 30 Watts distributed on an annular surface of approximately 5cm2, already largely calculated, produce an instantaneous unblocking of the circulation of the fuel, in spite of the total blocking existing previously by the paraffin.
L'invention est prévue principalement pour les installations de pompage de carburant Diesel. L'invention est applicable également aux installations de pompage d'autres carburants, à dépôt de paraffine, par exemple certaines huiles de chauffage pour des fours. The invention is intended mainly for diesel fuel pumping installations. The invention is also applicable to installations for pumping other fuels, with paraffin deposition, for example certain heating oils for ovens.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8111553A FR2507691A1 (en) | 1981-06-10 | 1981-06-10 | Diesel engine fuel feed system - has electrical heating elements in filter surfaces to prevent blockage (AT 15.07.82) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8111553A FR2507691A1 (en) | 1981-06-10 | 1981-06-10 | Diesel engine fuel feed system - has electrical heating elements in filter surfaces to prevent blockage (AT 15.07.82) |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2507691A1 true FR2507691A1 (en) | 1982-12-17 |
| FR2507691B1 FR2507691B1 (en) | 1985-04-26 |
Family
ID=9259421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8111553A Granted FR2507691A1 (en) | 1981-06-10 | 1981-06-10 | Diesel engine fuel feed system - has electrical heating elements in filter surfaces to prevent blockage (AT 15.07.82) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2507691A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2546416A1 (en) * | 1983-05-23 | 1984-11-30 | Fiat Auto Spa | ELECTRICALLY CONDUCTING FILTER PAPER AND FILTER USING SUCH PAPER |
| FR2546571A1 (en) * | 1983-05-27 | 1984-11-30 | Oemv Ag | FUEL SUPPLY DEVICE |
| FR2560935A1 (en) * | 1984-03-09 | 1985-09-13 | Lucas Ind Plc | FUEL SUPPLY CIRCUIT |
| FR2695168A1 (en) * | 1992-08-25 | 1994-03-04 | Daimler Benz Ag | Fuel filter assembly for an internal combustion engine. |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2635174A (en) * | 1950-06-17 | 1953-04-14 | Bendix Aviat Corp | Filter |
| US3235084A (en) * | 1962-01-30 | 1966-02-15 | Stewart Warner Corp | Fuel filter with heating unit |
| DE2606113A1 (en) * | 1976-02-16 | 1977-08-18 | Mack & Mack Ingbuero | Diesel fuel emulsification prevention system - has heater incorporated in tank near supply pipe intake |
| DE2721607A1 (en) * | 1977-05-13 | 1978-11-16 | Bosch Gmbh Robert | LIQUID FILTER |
| DE3120960A1 (en) * | 1981-05-26 | 1982-12-16 | ÖMV AG, 1090 Wien | Fuel feed device |
-
1981
- 1981-06-10 FR FR8111553A patent/FR2507691A1/en active Granted
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2635174A (en) * | 1950-06-17 | 1953-04-14 | Bendix Aviat Corp | Filter |
| US3235084A (en) * | 1962-01-30 | 1966-02-15 | Stewart Warner Corp | Fuel filter with heating unit |
| DE2606113A1 (en) * | 1976-02-16 | 1977-08-18 | Mack & Mack Ingbuero | Diesel fuel emulsification prevention system - has heater incorporated in tank near supply pipe intake |
| DE2721607A1 (en) * | 1977-05-13 | 1978-11-16 | Bosch Gmbh Robert | LIQUID FILTER |
| DE3120960A1 (en) * | 1981-05-26 | 1982-12-16 | ÖMV AG, 1090 Wien | Fuel feed device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2546416A1 (en) * | 1983-05-23 | 1984-11-30 | Fiat Auto Spa | ELECTRICALLY CONDUCTING FILTER PAPER AND FILTER USING SUCH PAPER |
| FR2546571A1 (en) * | 1983-05-27 | 1984-11-30 | Oemv Ag | FUEL SUPPLY DEVICE |
| FR2560935A1 (en) * | 1984-03-09 | 1985-09-13 | Lucas Ind Plc | FUEL SUPPLY CIRCUIT |
| FR2695168A1 (en) * | 1992-08-25 | 1994-03-04 | Daimler Benz Ag | Fuel filter assembly for an internal combustion engine. |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2507691B1 (en) | 1985-04-26 |
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