EP2318111A1 - Filtre à carburant - Google Patents

Filtre à carburant

Info

Publication number
EP2318111A1
EP2318111A1 EP09753928A EP09753928A EP2318111A1 EP 2318111 A1 EP2318111 A1 EP 2318111A1 EP 09753928 A EP09753928 A EP 09753928A EP 09753928 A EP09753928 A EP 09753928A EP 2318111 A1 EP2318111 A1 EP 2318111A1
Authority
EP
European Patent Office
Prior art keywords
fuel
fuel filter
filter
active substances
filter according
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Withdrawn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
EP09753928A
Other languages
German (de)
English (en)
Inventor
Michael Harenbrock
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
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 filed Critical Mann and Hummel GmbH
Publication of EP2318111A1 publication Critical patent/EP2318111A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D37/00—Processes of filtration
    • B01D37/02—Precoating the filter medium; Addition of filter aids to the liquid being filtered
    • B01D37/025—Precoating the filter medium; Addition of filter aids to the liquid being filtered additives incorporated in the filter
    • 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
    • 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
    • F02M37/34—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 by the filter structure, e.g. honeycomb, mesh or fibrous
    • 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
    • F02M37/42—Installation or removal of filters

Definitions

  • the invention relates generally to fuel filters.
  • the fuel filters are generally to fuel filters.
  • Biofuels are fuels for internal combustion engines
  • Biofuels have one
  • biofuels include biodiesel, a fatty acid methyl ester
  • the vehicles eg with heating systems, be converted.
  • the vegetable oil is mixed with methanol and various reagents (especially potassium or sodium hydroxide).
  • various reagents especially potassium or sodium hydroxide.
  • the ester bonds of the triglycerides of the vegetable oil are separated and the resulting fatty acids esterified with the methanol (transesterification).
  • transesterification the end product has a significantly lower viscosity than the untreated vegetable oil and can be used as a substitute for diesel fuel due to its physical properties.
  • the esters formed are partially mono- to polyunsaturated, which leads to a reduced oxidation stability.
  • Biodiesel can be used in a pure form, but also be added to the fossil diesel.
  • additives must now be added to the fuels, which improve the oxidation stability.
  • fuel additives In contrast to oil additives, fuel additives must be ashless, that is, no metal-containing compounds and / or salts may be used. Otherwise, deposits would form in the engine compartment during combustion.
  • sulfur-containing additives unlike motor oils, the use of sulfur-containing additives must be avoided in fuels.
  • Oil filters for internal combustion engines which contain active substances and remove pollutants from the oil, are disclosed, for example, in DE 101 07 034 A1 and EP 1 569 404 A1.
  • active sub- used consisting of inorganic compounds such as. Metal oxides, hydroxides, bicarbonates, carbonates, alcoholates, carboxylates and the like.
  • inorganic compounds such as. Metal oxides, hydroxides, bicarbonates, carbonates, alcoholates, carboxylates and the like.
  • such materials are, as mentioned above, not suitable for fuel filters.
  • Fuel filters are necessary components used to protect internal combustion engines by filtering out contaminants and thereby preventing damage to the engine and other downstream components such as valves, fuel injectors, fuel lines, and related components.
  • Fuel can carry a large variety of contaminants from a variety of sources. This allows fuel to oxidize and form resinous deposits. In fuels with increased water solubility, bacteria can also grow that form a "slime" on the inner surfaces of fuel tanks, fuel lines and fuel filters, which can block them.
  • the fuel filter can be designed as an exchangeable filter or as a replacement element.
  • a typical replaceable filter comprises a filter housing, e.g. can be made of sheet metal or plastic.
  • a filter element On a central tube usually a filter element is applied with a multi-layered filter medium.
  • the multilayer filter medium may be star-folded but also designed as a wound filter. Accordingly, the flow is radially through the filter element or axially by a winding element which is formed in a kind of wound bag. Also, a filter element with mutually closed channels is conceivable.
  • the active substances may be antioxidants. Suitable are e.g. Substances selected from the group consisting of sterically hindered alkylphenols and aromatic diamines. In particular, butylhydroxytoluene (BHT) is suitable as the active substance.
  • BHT butylhydroxytoluene
  • the active substances may be arranged in the filter medium of the fuel filter.
  • the active substances may be arranged between two layers of a multilayer filter element.
  • the active substances can be chemically bound to an impregnation of the filter element.
  • the immobilized antioxidants may be disposed in a layer of a filter element such that pollutants present in the fluid are chemically or physically decomposed or bound. They can also be chemically impregnated on an impregnation of the filter element. be bound. In the impregnation may, for example, to a
  • Phenol resin act.
  • the active substances may e.g. as particles in
  • a first layer e.g. to be made of a fleece
  • FIG. 1 schematically shows the structure of a, e.g. Diesel fuel, interchangeable
  • FIG. 2 shows schematically the structure of the filter element according to the invention.
  • Embodiment (s) of the Invention [0018] According to the invention, the use of antioxidants in fuel filters,
  • antioxidants sterically hindered alkylphenols are preferred
  • BHT hydroxytoluene
  • FIG. 1 shows the general structure of a diesel fuel exchange filter 10. This consists of the filter housing 12, the center tube 14 and a filter element 16 with a multi-layer filter medium 18.
  • the multilayer filter medium 18 is at both ends of the central tube 14 by means of a seal 20 and an element end disc 22nd fixed to the filter housing 12.
  • the filter element 16 is guided by means of a guide element 24.
  • the structure of the filter element according to the invention is shown in FIG. 2.
  • a layer Spunbound 22 is applied on the filter medium 16.
  • the active substance e.g. applied in the form of small particles 24 and covered with another spunboundlage 26, so that a sandwich structure is formed.
  • the particles 24 are connected with a (spray) adhesive (not shown) with each other, as well as with the two Spunboundlagen 22 and 26.
  • the direction of flow is indicated by the arrow 28.
  • the particles 24 have a high surface-to-mass ratio, so that there is always enough active substance available for the reaction.
  • chemical substances can be used in non-particulate form. These may be at the impregnation of e.g. be attached via hydrocarbon chains.
  • the immobilized antioxidants are therefore arranged in a layer of a multilayer filter element in the way that chemically or physically decomposes or binds pollutants present in the fluid become. They can also be chemically bonded to an impregnation of the filter element.
  • the impregnation may, for example, be a phenolic resin.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Materials (AREA)
  • Liquid Carbonaceous Fuels (AREA)

Abstract

L'invention porte sur un filtre à carburant destiné à être utilisé dans des moteurs à combustion interne fonctionnant en particulier avec des biocarburants, notamment du biodiesel. Le filtre comporte des substances actives sous forme immobilisée.
EP09753928A 2008-05-29 2009-05-28 Filtre à carburant Withdrawn EP2318111A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202008007225U DE202008007225U1 (de) 2008-05-29 2008-05-29 Kraftstofffilter
PCT/EP2009/056535 WO2009144273A1 (fr) 2008-05-29 2009-05-28 Filtre à carburant

Publications (1)

Publication Number Publication Date
EP2318111A1 true EP2318111A1 (fr) 2011-05-11

Family

ID=39688700

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09753928A Withdrawn EP2318111A1 (fr) 2008-05-29 2009-05-28 Filtre à carburant

Country Status (3)

Country Link
EP (1) EP2318111A1 (fr)
DE (1) DE202008007225U1 (fr)
WO (1) WO2009144273A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5478463A (en) * 1989-09-07 1995-12-26 Exxon Chemical Patents Inc. Method of reducing sludge and varnish precursors in lubricating oils
WO2006127652A2 (fr) * 2005-05-20 2006-11-30 Lutek, Llc Materiaux et procedes de reduction de sous-produits de combustion dans un systeme de lubrification pour un moteur a combustion interne

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6238554B1 (en) 1999-06-16 2001-05-29 Fleetguard, Inc. Fuel filter including slow release additive
CA2408880A1 (fr) * 2000-05-08 2001-11-15 Ronald P. Rohrbach Filtre a huile etage contenant un conditionneur basique en granules
US6379564B1 (en) * 2000-05-08 2002-04-30 Ronald Paul Rohrbach Multi-stage fluid filter, and methods of making and using same
DE10107034B4 (de) 2001-02-15 2012-05-03 Mann + Hummel Gmbh Vorrichtung zur Verlängerung der chemischen Standzeit eines Filtermediums
US6835218B1 (en) * 2001-08-24 2004-12-28 Dober Chemical Corp. Fuel additive compositions
ATE371330T1 (de) 2004-02-25 2007-09-15 Research In Motion Ltd System und verfahren zum aufrechterhalten der netzwerkverbindung

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5478463A (en) * 1989-09-07 1995-12-26 Exxon Chemical Patents Inc. Method of reducing sludge and varnish precursors in lubricating oils
WO2006127652A2 (fr) * 2005-05-20 2006-11-30 Lutek, Llc Materiaux et procedes de reduction de sous-produits de combustion dans un systeme de lubrification pour un moteur a combustion interne

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2009144273A1 *

Also Published As

Publication number Publication date
DE202008007225U1 (de) 2008-08-14
WO2009144273A1 (fr) 2009-12-03

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