EP1124620A1 - Systeme de filtration - Google Patents

Systeme de filtration

Info

Publication number
EP1124620A1
EP1124620A1 EP99970620A EP99970620A EP1124620A1 EP 1124620 A1 EP1124620 A1 EP 1124620A1 EP 99970620 A EP99970620 A EP 99970620A EP 99970620 A EP99970620 A EP 99970620A EP 1124620 A1 EP1124620 A1 EP 1124620A1
Authority
EP
European Patent Office
Prior art keywords
filter
filter device
pump
fuel
water
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Withdrawn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
EP99970620A
Other languages
German (de)
English (en)
Inventor
Sascha Bauer
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.)
Mann and Hummel GmbH
Original Assignee
Mann and Hummel GmbH
Filterwerk Mann and Hummel GmbH
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 Mann and Hummel GmbH, Filterwerk Mann and Hummel GmbH filed Critical Mann and Hummel GmbH
Publication of EP1124620A1 publication Critical patent/EP1124620A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B01D29/60—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration
    • B01D29/605—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration by level measuring
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D36/00—Filter circuits or combinations of filters with other separating devices
    • B01D36/003—Filters in combination with devices for the removal of liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D36/00—Filter circuits or combinations of filters with other separating devices
    • B01D36/003—Filters in combination with devices for the removal of liquids
    • B01D36/005—Liquid level sensing means, e.g. for water in gasoil-filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D36/00—Filter circuits or combinations of filters with other separating devices
    • B01D36/02—Combinations of filters of different kinds
    • 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
    • F02M37/24—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by water separating means
    • F02M37/26—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by water separating means with water detection means
    • F02M37/28—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by water separating means with water detection means with means activated by the presence of water, e.g. alarms or means for automatic drainage
    • 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
    • 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
    • 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
    • F02M37/54—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by air purging means

Definitions

  • the invention relates to a filter device according to the features of the preamble of independent claim 1.
  • a filter device is known from DE 33 06 294 C2. This is used to separate water and other contaminants from liquid fuels, in particular to separate water and solid particles that are contained in diesel fuels.
  • the known filter device consists of a housing body, in the interior of which a first filter element and a second filter element are arranged. A collecting trough is arranged below these filter elements. This has two separate sections for collecting and draining the contaminants or water.
  • the system has a drain plug at the bottom. As soon as the separated water has reached a certain amount, the drain screw must be opened manually and the water removed from the filter device. This is time consuming, and manual water removal is only reliable if it is ensured that an operator checks the entire facility at regular intervals.
  • the invention has for its object to avoid the disadvantages mentioned and to provide a filter device for separating water and other contaminants from liquid fuels, which provides reliably cleaned fuel without manual maintenance.
  • the pump works in suction mode or pressure mode, i. H. it is arranged in the water discharge line for suction operation.
  • the pressure operation it is arranged in the fuel supply line and thus generates an excess pressure in the filter device, which is reduced by opening a valve in the water discharge line. The water flows outwards due to the excess pressure prevailing in the filter device.
  • the filter device is provided with a heating element.
  • This can be a heat exchanger, to which a heat transfer fluid is supplied.
  • an electrical heater in the system that is effective when the temperature falls below a certain level.
  • the fuel flowing back can also be used to heat the fuel. Due to the engine heat, this usually has a higher temperature than the fuel that is drawn from the tank. This heated fuel can be supplied to the filter device via a thermostatic valve.
  • the filter device can consist of two filter systems.
  • the first filter is a pre-filter, the second a downstream main filter. It is possible to set up these two filter systems in an identical manner and to couple them using appropriate adapter elements.
  • a pressure sensor can e.g. B. measure the differential pressure between the supply line and the output line and signal the maintenance of the filter at a differential pressure that is above a certain threshold.
  • the filter device becomes the fuel supplied with a certain defined pressure, only one sensor is required in the outlet line. On the basis of the measurement signal from the sensor, a pressure difference caused by the filter device can be determined and displayed.
  • This pump can, for example, be a manually operated pump for venting.
  • the filter devices according to the invention are usually used in trucks, construction machinery or the like.
  • FIG. 1 shows the schematic representation of a filter system
  • FIG. 2 shows a further variant of a filter system
  • Figure 3 shows the sectional view of a structurally designed
  • FIG. 4 shows a variant of the schematic structure shown in FIG. 2
  • Figure 5 is a schematic representation of the ventilation of the two filters.
  • the filter system according to FIG. 1 consists of a pre-filter 10 with a filter housing 11.
  • a filter element 12 is located in this filter housing.
  • the liquid to be filtered is fed from a tank 13 via line 14 to a first feed line 15 for the pre-filter 10.
  • There the fuel reaches the dirty liquid area 16. Any water present therein settles in the water reservoir 17.
  • the fuel flows through the filter element 12 and leaves the pre-filter 10 in a cleaned manner via the pure liquid area 18 and the outlet line 19.
  • the fuel reaches a liquid pump 20 via the outlet line 19 and is compressed there via a main filter 21 to injection valves of an internal combustion engine, not shown here.
  • the excess fuel is returned to the tank via line 22.
  • a water sensor 23 is provided in the prefilter 10. If the water level in the water reservoir 17 is correspondingly high, this generates a signal which leads to the water being pumped out via the two-way valve 24 by means of the pump 25 and being fed to a water discharge container 27 via the two-way valve. To remove the residual water in the pump 25 and the various valves 24, 26, these valves are switched. Activation of the pump 25 causes fuel to be supplied to the pump via line 28. Through the switched valve 26, this fuel is supplied to the prefilter 10 via a second feed line 29.
  • FIG. 2 shows a filter system with a pre-filter 10 and a main filter 21.
  • Fuel is supplied to the pre-filter 10 via the line 30 and the pump 31 as well as the pressure relief valve 32.
  • a sensor 33 for water which has accumulated at the bottom of the prefilter and a discharge line 34. If the amount of water exceeds a certain measured value, the sensor causes the two-way valve 35 to be opened. Due to the pump pressure of the pump 31, the water flows through the discharge line 34 and the two-way valve 35 to the water outlet.
  • the filtered fuel reaches the main filter 21 via line 36 and the liquid pump 20, is cleaned there and leaves this main filter via line 37 the filter system. From there, the fuel reaches the individual injection nozzles of an internal combustion engine. The excess fuel is fed back to the liquid pump 20 via the line 38.
  • FIG. 3 shows a detailed sectional view of the individual components of a compact system in which both a pre-filter and a main filter are provided.
  • the two filters are constructed identically. This leads to a considerable reduction in manufacturing costs.
  • Both filters consist of a filter housing 11, each with a filter element 12 therein and a support tube 43.
  • a water sensor 44 In the pre-filter 10 there is also a water sensor 44.
  • the filter housings are directly coupled to a filter carrier 45 and can be removed for exchanging the filter element.
  • the pump 49 for dewatering the pre-filter is arranged on the side of the pre-filter.
  • the water outlet 50 is provided in the area of the pump.
  • the liquid inlet 51 and the liquid outlet 52 can also be seen on the filter carrier.
  • the filter carrier has vibration-decoupled fastening elements 53, 54. These are, for example, rubber-elastic elements which are fixed to a fastening structure by means of a screw connection.
  • the pure liquid is conducted outwards via the connection 56 and is fed there via a line not shown here to the main filter arranged on the left side.
  • the liquid cleaned in the main filter passes through the connecting piece 57 to the injection pump.
  • Figure 4 shows a variant of the schematic structure shown in Figure 2.
  • the essential difference from the structure according to FIG. 2 is that only two pumps are required for filling the entire system, emptying both filters and dewatering the pre-filter 10. These are the pump 31 and the pump 58.
  • the pump 31 conveys fuel from the tank 42 both into the prefilter and via the line 59 into the main filter 21.
  • a valve 60 and a check valve 61 are connected to the line 59.
  • Above the changeover valve 62 which is a two-way valve, is located the line 63, which leads to the tank 42 and the line 64, which leads to a water holding tank 65.
  • Sensors 66, 67 are connected in the line above and below the valve 62. These sensors generate control signals for the valve 62.
  • the pump 31 When the system is filled for the first time, the pump 31 is activated. This fills the main filter 21 via the line 59 and the check valve 61 and the pre-filter 10 via the line 68. If the valve 60 can be opened when the main filter 21 is filled, the check valve 61 is not required. It merely represents an alternative embodiment.
  • Pump 58 is activated to remove any water that may be present in the prefilter 10. First, the liquid flows through line 63 into tank 42. As soon as water is applied to one of the two sensors 66, 67, the corresponding sensor switches valve 62 over, so that the water is then discharged via line 64 into water collecting container 65 . As soon as the sensor 67 is supplied with fuel, it switches the valve 62 again in the position shown. After a certain predefined time, the pump 58 switches off.
  • the filters must be emptied.
  • the valve 60 is opened; Both the prefilter 10 and the main filter 21 can now be emptied via the line 63 via the pump 58.
  • the pumps 58 and 31 can advantageously be arranged in a common pump module. This has the advantage that the connections are arranged within the module and therefore no external lines are required.
  • FIG. 5 shows a schematic representation of the venting of the two filters 10 and 21.
  • the air escaping in the closed structures flows via line 69 and line 70 into a ventilation block 71 and from there via a throttle point 72 and line 73 into the fuel tank 42.
  • the escaping air lifts the check valve of the filter 21, which consists of a ball 74, upwards, where the ball does not close an opening, but is only held.
  • the check valve of the filter 21 which consists of a ball 74
  • the check valve of the filter 21 which consists of a ball 74

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filtration Of Liquid (AREA)

Abstract

L'invention concerne un système pour filtrer de l'eau et d'autres impuretés contenues dans du carburant liquide. Ce système comprend un corps de boîtier (11), à l'intérieur duquel est placé un premier élément filtrant (12), et une cuve collectrice (17), placée géodésiquement sous l'élément filtrant (12). Une pompe (25) sert à retirer l'eau se trouvant dans la cuve, et un détecteur (23) sert à déterminer si de l'eau s'accumule dans la cuve.
EP99970620A 1998-10-17 1999-10-02 Systeme de filtration Withdrawn EP1124620A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19847999 1998-10-17
DE19847999A DE19847999A1 (de) 1998-10-17 1998-10-17 Filtereinrichtung
PCT/EP1999/007317 WO2000023169A1 (fr) 1998-10-17 1999-10-02 Systeme de filtration

Publications (1)

Publication Number Publication Date
EP1124620A1 true EP1124620A1 (fr) 2001-08-22

Family

ID=7884854

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99970620A Withdrawn EP1124620A1 (fr) 1998-10-17 1999-10-02 Systeme de filtration

Country Status (4)

Country Link
US (1) US6514404B1 (fr)
EP (1) EP1124620A1 (fr)
DE (1) DE19847999A1 (fr)
WO (1) WO2000023169A1 (fr)

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ITRE20040032A1 (it) * 2004-04-09 2004-07-09 Ufi Filters Spa Dispositivo per la segnalazione dell'intasamento del filtro carburante di motori endotermici, in particolare motore diesel
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SE532356C2 (sv) 2007-09-18 2009-12-22 Scania Cv Abp Anordning och förfarande för värmning av vatten mottaget från ett bränslereningssteg.
US8157997B2 (en) 2007-10-17 2012-04-17 Caterpillar Inc. Canister filter system with drain that cooperates with filter element
US8501003B2 (en) 2007-10-17 2013-08-06 Caterpillar Inc. Canister filter system with drain that cooperates with filter element
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USD646350S1 (en) 2010-10-01 2011-10-04 Caterpillar Inc. Filter
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CN102345541B (zh) * 2011-11-02 2012-11-28 中国重汽集团济南动力有限公司 一种柴油滤清器加热装置
DE102012012182A1 (de) 2012-06-19 2013-12-19 Daimler Ag Filtereinrichtung zum Filtern von Kraftstoff
DE102013210973A1 (de) 2013-06-12 2014-12-18 Mahle International Gmbh Kraftstoffversorgungssystem
SE538892C2 (sv) * 2013-08-30 2017-01-31 Scania Cv Ab En metod för en bearbetningsenhet i samband med vattenseparering i ett bränslefilter, och nämnda bearbetningsenhet
US20150202555A1 (en) * 2014-01-17 2015-07-23 Lam Research Ag Method and apparatus for conditioning process liquids
DE102014016457A1 (de) * 2014-10-28 2016-04-28 Mtu Friedrichshafen Gmbh Motorintegrierte Tankreinigungsvorrichtung
US10323640B2 (en) 2015-06-19 2019-06-18 Clarcor Engine Mobile Solutions, Llc Fuel filter assembly with brushless DC pump
EP3184159A1 (fr) 2015-12-23 2017-06-28 Wema System AS Système de filtration pour capteur de fluide notamment pour réservoirs de combustible et systèmes de capteur comportant un tel dispositif
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Also Published As

Publication number Publication date
WO2000023169A1 (fr) 2000-04-27
DE19847999A1 (de) 2000-04-20
US6514404B1 (en) 2003-02-04

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Legal Events

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