WO2019194244A1 - Milieu filtrant - Google Patents

Milieu filtrant Download PDF

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Publication number
WO2019194244A1
WO2019194244A1 PCT/JP2019/014868 JP2019014868W WO2019194244A1 WO 2019194244 A1 WO2019194244 A1 WO 2019194244A1 JP 2019014868 W JP2019014868 W JP 2019014868W WO 2019194244 A1 WO2019194244 A1 WO 2019194244A1
Authority
WO
WIPO (PCT)
Prior art keywords
nonwoven fabric
layer
water droplet
filter material
less
Prior art date
Application number
PCT/JP2019/014868
Other languages
English (en)
Japanese (ja)
Inventor
山田　達也
天野　整一
航平 谷口
Original Assignee
旭化成株式会社
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 旭化成株式会社 filed Critical 旭化成株式会社
Priority to JP2020512298A priority Critical patent/JPWO2019194244A1/ja
Publication of WO2019194244A1 publication Critical patent/WO2019194244A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02—Separation of non-miscible liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02—Separation of non-miscible liquids
    • B01D17/04—Breaking emulsions
    • 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
    • B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • 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

Definitions

  • the present invention relates to a filter material.
  • filter materials capable of separating fine particles in a liquid and collecting water in the liquid are required.
  • a filter material include a diesel fuel filter.
  • a diesel engine that operates using light oil as fuel has better fuel combustion efficiency and better fuel efficiency than a gasoline engine, which is a typical internal combustion engine.
  • the fuel injection device built into the diesel engine has an elaborate and precise structure that injects fuel at ultra-high pressure, and there is free moisture and solid foreign matter in the fuel. Otherwise, the fuel injection device may be damaged or deteriorated. For this reason, it is essential to install a fuel filter in an automobile equipped with a diesel engine.
  • Patent Document 1 describes a diesel fuel filter device. This diesel fuel filter device is described as being able to separate water in fuel by combining a particle collecting filter and a water collecting member.
  • the water droplet coarsening ability of the filter material may be significantly reduced.
  • the diesel fuel filter device of Patent Document 1 is mounted on a vehicle, water droplets finely dispersed in the fuel oil cannot be sufficiently separated, and fine particles present in the fuel oil are effectively removed. In this case, water droplets and fine particles may flow into the engine.
  • the fine particles contained in the fuel oil are typically iron rust, dust, and the like. Since these fine particles are hydrophilic, if they are captured by the water collecting member, water droplets on the water collecting member There is a problem that the coarsening ability is remarkably lowered.
  • the present invention has been made in view of the above points, and an object thereof is to provide a filter material having improved particulate collection performance and water separation performance.
  • a filter material comprising a particle collection layer and a water droplet coarsening layer, wherein the particle collection layer comprises a laminate of two or more meltblown nonwoven fabrics having different average fiber diameters, and the water droplet coarsening layer is A filter material comprising a laminate of a melt blown nonwoven fabric and a spunbond nonwoven fabric.
  • the particle collection layer includes at least two melt blown nonwoven fabrics having an average fiber diameter of 0.1 ⁇ m or more and 5.0 ⁇ m or less, the total thickness of the particle collection layer is 0.2 mm or more and 0.7 mm or less, and the particles Item 2.
  • the filter material according to Item 1 wherein an average flow pore size of the entire collection layer is 0.5 ⁇ m or more and 2.0 ⁇ m or less.
  • the water droplet coarsening layer includes at least one layer of melt blown nonwoven fabric having an average fiber diameter of 0.1 ⁇ m to 5.0 ⁇ m and at least one layer of spunbond nonwoven fabric having an average fiber diameter of 10 ⁇ m to 20 ⁇ m on the downstream side of the melt blown nonwoven fabric. Including Item 3.
  • the filter according to Item 1 or 2 wherein the entire water droplet coarsened layer has a thickness of 0.5 mm or more and 1.2 mm or less, and the average flow pore size of the entire water droplet coarsened layer is 1.0 ⁇ m or more and 4.0 ⁇ m or less. Wood.
  • a liquid filtration method using a filter material including a particle collection layer and a water droplet coarsening layer The particle collection layer includes a laminate of two or more melt blown nonwoven fabrics having different average fiber diameters, The water droplet coarsening layer includes a laminate of a meltblown nonwoven fabric and a spunbond nonwoven fabric, A liquid filtration method comprising filtering the liquid in the order of the particle collection layer and the water droplet coarsening layer.
  • Item 6 The method according to Item 5, wherein the liquid is a diesel vehicle fuel.
  • the oil / water separation performance can also be improved by improving the separation and removal performance of fine particles in the liquid to be filtered and agglomerating and coarsening the water finely dispersed in the liquid.
  • the present embodiment an embodiment of the present invention (hereinafter referred to as “the present embodiment”) will be described in detail, but the present invention is not limited to the present embodiment.
  • the present embodiment provides a filter material in which a particle collection layer and a water droplet coarsening layer are laminated.
  • the particle collection layer includes a laminate of two or more melt blown nonwoven fabrics having different average fiber diameters, whereby fine particles as well as coarse particles are collected and dispersed with high accuracy. Water droplets can be collected.
  • the water droplet coarsening layer includes a laminate of a melt blown nonwoven fabric and a spunbond nonwoven fabric, whereby finely dispersed water droplets can be collected and coarsened.
  • non-woven fabric used in the filter material of the present embodiment it is preferable to use a melt blown non-woven fabric from the viewpoint of improving the capturing performance of fine particles having a target particle size and collecting dispersed water droplets. Moreover, it is preferable to use a spunbonded nonwoven fabric from the viewpoint of collecting and coarsening the dispersed water droplets.
  • Melt blown nonwoven fabric refers to a melt blown method, i.e. a nonwoven fabric made by spinning one or more polymers in a high-speed hot gas stream into fibers, and after cooling, collecting them on a moving screen and made by one or more bonding methods (See JIS L0222: 2001, “nonwoven fabric terms”).
  • the “meltblown nonwoven fabric” used in the particle collection layer and the water droplet coarsening layer in the present embodiment refers to a meltblown nonwoven fabric composed of fibers having an average fiber diameter of 0.1 ⁇ m or more and less than 10 ⁇ m.
  • melt blown nonwoven fabrics are typically manufactured by blowing molten thermoplastic resin from a die placed after the extruder onto a net conveyor or collection screen with high-speed and high-temperature airflow to self-adhere the fibers. .
  • the degree of crystallinity of the fibers constituting the meltblown nonwoven fabric is preferably 10% or more and 30% or less.
  • spunbond nonwoven fabric is a nonwoven fabric made by one or more bonding methods in which continuous fibers spun from a nozzle are collected on a moving screen by a spunbond method, that is, melting or dissolution of a polymer. (See JIS L0222: 2001, “nonwoven fabric terms”).
  • the “spunbond nonwoven fabric” used for the water droplet coarsening layer in this embodiment refers to a spunbond nonwoven fabric composed of fibers having an average fiber diameter of 10 ⁇ m or more and 30 ⁇ m or less.
  • a spunbonded nonwoven fabric is typically produced by obtaining a continuous filament web by melt spinning and partially thermocompression bonding with a pair of embossing rolls and smooth rolls. The degree of crystallinity of the fibers constituting the spunbonded nonwoven fabric is preferably 30% or more and 60% or less.
  • the meltblown nonwoven fabric used for the particle collection layer of this embodiment includes a laminate of two or more meltblown nonwoven fabrics having different average fiber diameters.
  • the particle collection layer preferably includes at least two melt blown nonwoven fabrics having an average fiber diameter of 0.1 ⁇ m or more and 5.0 ⁇ m or less, and the average fiber diameter of the entire particle collection layer is 0.5 ⁇ m or more and 2.0 ⁇ m or less. Preferably there is. It is preferable to laminate the melt blown nonwoven fabric so that the average fiber diameter becomes narrower from the upstream to the downstream with respect to the liquid passing direction of the filtered liquid.
  • the filter material of the present embodiment preferably has a first melt blown nonwoven fabric having a first average fiber diameter and a second melt blown nonwoven fabric having a second average fiber diameter smaller than the first average fiber diameter.
  • the particle collection layer is composed of two layers of melt blown nonwoven fabrics having different functions, ie, collection of coarse particles and collection of fine particles, and it is possible to efficiently collect fine particles in a liquid. it can.
  • the first average fiber diameter of the meltblown nonwoven fabric disposed on the upstream side is preferably 1.0 ⁇ m or more and 5.0 ⁇ m or less, more preferably 1.0 ⁇ m or more and 2.0 ⁇ m or less.
  • the second average fiber diameter of the melt blown nonwoven fabric disposed on the downstream side is preferably 0.1 ⁇ m or more and 5.0 ⁇ m or less, more preferably 0.1 ⁇ m or more and 3.0 ⁇ m or less, and further preferably 0.1 ⁇ m or more and 1.0 ⁇ m. It is as follows.
  • the average fiber diameter of the melt blown nonwoven fabric is in these ranges, which is preferable because fine particles having a particle diameter of 4 ⁇ m can be effectively collected.
  • the total thickness of the particle collection layer is preferably 0.2 mm or more and 0.7 mm or less, more preferably 0.3 mm or more and 0.5 mm or less.
  • the thickness of the meltblown nonwoven fabric disposed on the upstream side is preferably 0.1 mm to 0.7 mm, more preferably 0.2 mm to 0.6 mm.
  • the thickness of the melt blown nonwoven fabric disposed on the downstream side is preferably 0.01 mm to 0.5 mm, more preferably 0.05 mm to 0.3 mm.
  • the meltblown nonwoven fabric used for the water droplet coarsening layer of this embodiment includes a laminate of a meltblown nonwoven fabric and a spunbond nonwoven fabric. Thereby, it is possible to improve the water separation performance of the filter material.
  • the average fiber diameter of the melt blown nonwoven fabric is preferably 0.1 ⁇ m or more and 5.0 ⁇ m or less, more preferably 0.1 ⁇ m or more and 3.0 ⁇ m or less, and further preferably 1.0 ⁇ m or more and 2.0 ⁇ m or less.
  • the water droplet coarsening layer preferably has a melt blown nonwoven fabric on the upstream side with respect to the liquid flow direction, that is, the particle collection layer side, and a spunbonded nonwoven fabric on the downstream side.
  • the water droplet coarsening layer is preferably laminated on the second melt blown nonwoven fabric side.
  • the average fiber diameter of the spunbonded nonwoven fabric is preferably 10 ⁇ m to 30 ⁇ m, more preferably 10 ⁇ m to 20 ⁇ m, and still more preferably 10 ⁇ m to 15 ⁇ m.
  • the average fiber diameters of the meltblown nonwoven fabric and spunbond nonwoven fabric of the water droplet coarsening layer are in these ranges, which is preferable because fine water droplets can be efficiently and effectively captured and coarsened and separated.
  • the total thickness of the water droplet coarsening layer is preferably 0.5 mm or more and 1.2 mm or less, more preferably 0.5 mm or more and 1.0 mm or less.
  • the thickness of the meltblown nonwoven fabric in the water droplet coarsening layer is preferably from 0.1 mm to 0.7 mm, more preferably from 0.2 mm to 0.6 mm.
  • the thickness of the spunbonded nonwoven fabric in the water droplet coarsening layer is preferably from 0.1 mm to 0.7 mm, more preferably from 0.2 mm to 0.6 mm.
  • the main filtration function of the filter material in the thickness direction of the filter material.
  • the porosity of the entire particle collection layer may be preferably 65% or more and less than 95%, more preferably 80% or more and less than 95%.
  • the average flow pore size is a measure of the capture efficiency of fine particles.
  • the value of the average flow pore diameter of the entire particle collection layer is preferably 0.5 ⁇ m or more and 2.0 ⁇ m or less. Preferably, they are 1 micrometer or more and 1.9 micrometers or less, More preferably, they are 1 micrometer or more and 1.5 micrometers or less. As a result, fine particles in the liquid to be filtered can be captured.
  • the average flow pore size value of the melt blown nonwoven fabric used on the upstream side of the particle collection layer is preferably 3.5 ⁇ m or more and 10 ⁇ m or less, and the average flow pore size value of the melt blown nonwoven fabric used on the downstream side is preferably 0.00. 5 ⁇ m or more and less than 3.5 ⁇ m.
  • the average flow pore size of the entire water droplet coarsening layer is preferably 1.0 ⁇ m or more and 4.0 ⁇ m or less. Thereby, coarse separation can be performed more efficiently.
  • the average flow pore size of the meltblown nonwoven fabric used for the water droplet coarsening layer is preferably 0.5 ⁇ m or more and 10 ⁇ m or less, more preferably 1 ⁇ m or more and 5 ⁇ m or less.
  • the average flow pore size of the spunbonded nonwoven fabric used for the water droplet coarsening layer is preferably 10 ⁇ m or more and 50 ⁇ m or less, more preferably 20 ⁇ m or more and 40 ⁇ m or less.
  • polyester resins such as polyethylene terephthalate and copolymerized polyester
  • polyamide resins such as nylon 6, nylon 66, and copolymerized polyamide.
  • the filter material of the present embodiment is preferably used as a fuel filter material for diesel vehicles.
  • diesel fuel filter device of this embodiment When the diesel fuel filter device of this embodiment is mounted on a diesel vehicle, water droplets finely dispersed in the fuel oil can be effectively separated, and fine particles present in the fuel oil can be effectively removed. It can be collected and removed.
  • the liquid filtration method using the filter material of the present embodiment provides the filter material of the present embodiment, and includes passing the liquid in the order of the particle collection layer and the water droplet coarsening layer and filtering.
  • By passing the liquid in the order of the particle collection layer and the water droplet coarsening layer fine particles can be efficiently separated and removed, and water droplets can be effectively coarsened and separated. it can.
  • the liquid is preferably a diesel vehicle fuel.
  • Diesel vehicle fuel typically includes particulates such as iron rust and dirt. These fine particles are hydrophilic, and when trapped by a conventional filter material, there is a problem that the water droplet coarsening ability of the filter material is significantly reduced. While separating and removing fine particles such as iron rust and dirt, it is possible to suppress a drop in water droplet coarsening separation ability.
  • Weight per unit area (g / m 2 ): Ten samples of 100 mm ⁇ 100 mm were randomly sampled, weighed, converted to g / m 2 , and the average value was obtained.
  • Thickness (mm) A sample of 100 mm ⁇ 100 mm was collected at random, and a method conforming to the measurement method defined in JIS-L-1913-2010, that is, under a pressure of 0.5 kPa, 1 The average value of 10 points measured per sample was determined.
  • Air permeability (cc / min ⁇ cm 2 ) Three points were measured with a fragile type tester specified in JIS-L-1913-2010, and the average value was obtained.
  • Average flow pore diameter ( ⁇ m) Measured with a porous through-pore diameter evaluation apparatus (PSI Palm Porometer) using a bubble point method based on JIS K 3832. That is, to a sample wetted with a reagent having a stable and known surface tension (propylene, 1,1,2,3,3,3 oxide hexafluoric acid; manufactured by Porous Materials, Inc., surface tension of 15.9 dyne / cm) In contrast, when the air pressure is increased and the applied pressure exceeds the capillary action force of the reagent in the pores contained in the sample, the air permeation flow rate and the dry air permeation flow rate are compared. The value of the average flow pore size was obtained.
  • PSI Palm Porometer a porous through-pore diameter evaluation apparatus
  • Fine particle capture amount Measured by a simple method based on JIS-D1617 method. That is, JIS 8 type dust was added to JIS No. 2 diesel oil at a rate of 20 mg / L, the diesel oil was passed through the sample at a flow rate of 150 ml / min, and the time (minutes) required to reach a differential pressure of 10 kPa was measured. The value obtained from this equation was taken as the amount of trapped fine particles.
  • Fine particle trapping amount (g / cm 2 ) Time (min) to reach a differential pressure of 10 kPa ⁇ Flow rate 150 (ml / min) ⁇ Additional fine particle concentration 0.020 (mg / ml) ⁇ Sample area (cm 2 )
  • Table 1 below shows the nonwoven fabrics used in the examples and comparative examples.
  • Nonwoven fabrics A, B, C, F, G and H are melt blown nonwoven fabrics obtained by a known method.
  • the melt blown nonwoven fabrics having different fiber diameters were obtained by changing the discharge amount of the melted polyethylene terephthalate or nylon 6 polymer.
  • Nonwoven fabrics D and E are spunbond nonwoven fabrics obtained by a known method.
  • the raw materials were polyethylene terephthalate or nylon 6 polymer, respectively.
  • Nonwoven fabric I is a commercially available filter paper.
  • Examples 1 to 4 As shown in Table 2 below, filter performance comparison was performed on samples in which three or more layers of melt blown nonwoven fabrics and spunbond nonwoven fabrics having different fiber diameters were laminated. As shown in Table 2, in Examples 1 to 4, melt blown nonwoven fabrics and spunbond nonwoven fabrics having different fiber diameters were laminated in order from the first layer.
  • melt blown nonwoven fabrics and spunbond nonwoven fabrics having different fiber diameters were laminated in order from the first layer.
  • 90% of 1 ⁇ m particles were collected, 99.9% of 4 ⁇ m particles were collected, and water was removed by 95% or more. Further, the dust retention measured by a simple method based on JIS-D1617 was 40 mg / cm 2 or more.
  • the comparative example 1 changes the order of lamination
  • the capture rate and moisture removal rate of 1 ⁇ m particles and 4 ⁇ m particles were similar, however, it was found that the amount of dust retained was small and the filter life was short.
  • Comparative Example 2 evaluated the filter performance by using only the nonwoven fabric C as the water droplet coarsening layer used in Example 1, that is, only a melt blown nonwoven fabric having an average fiber diameter of 1.8 ⁇ m. Compared with Examples 1 to 4, it was found that the capture rate of 1 ⁇ m particles and 4 ⁇ m particles was the same, but the water removal rate was as low as 85% and the water droplet coarsening ability was low.
  • Example 3 the water droplet coarsening layer used in Example 1 was made of only the nonwoven fabric D, that is, only the spunbond nonwoven fabric, and the filter performance was evaluated. Compared with Examples 1 to 4, it was found that the capture rate of 1 ⁇ m particles and 4 ⁇ m particles was the same, but the water removal rate was as low as 70% and the water droplet coarsening ability was low.
  • Example 4 the particle collection layer used in Example 1 was only nonwoven fabric A, that is, only a melt blown nonwoven fabric having an average fiber diameter of 1.8 ⁇ m, and the filter performance was evaluated. Compared with Examples 1 to 4, it was found that the capture rate of 1 ⁇ m particles and 4 ⁇ m particles was low and the water removal rate was as low as 85%, so that the particle capture capability and water droplet coarsening capability were low.
  • Comparative Example 5 a commercially available filter paper having an average fiber diameter of 25 ⁇ m was disposed as the water droplet coarsening layer used in Example 1, and the filter performance was evaluated. Compared with Examples 1 to 4, the capture rates of 1 ⁇ m particles and 4 ⁇ m particles were equivalent, however, it was found that the water removal rate was as low as 20% and the water droplet coarsening ability was low.
  • Comparative Example 6 as the particle collection layer used in Example 1, a commercially available filter paper having an average fiber diameter of 25 ⁇ m was disposed, and the filter performance was evaluated. Compared with Examples 1 to 4, it was found that the trapping rate of 1 ⁇ m particles and 4 ⁇ m particles was low, the moisture removal rate was as low as 85%, and the particle trapping rate and the moisture removal rate were low.
  • the filter material of the present invention has improved fine particle capturing and moisture removal properties and extended filter life compared to conventional filter materials. Therefore, the filter material of the present invention can be suitably used as a filter material for a fuel filter installed in a diesel vehicle, for example.

Abstract

L'invention concerne un milieu filtrant qui comprend une couche de collecte de particules et une couche de grossissement de gouttelettes d'eau. La couche de collecte de particules comprend un produit stratifié d'au moins deux couches de non-tissé de fusion-soufflage ayant des diamètres de fibre moyens différents, et la couche de grossissement de gouttelettes d'eau comprend un produit stratifié d'un non-tissé de fusion-soufflage et d'un non-tissé filé-lié.
PCT/JP2019/014868 2018-04-06 2019-04-03 Milieu filtrant WO2019194244A1 (fr)

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JP2020512298A JPWO2019194244A1 (ja) 2018-04-06 2019-04-03 フィルタ材

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Application Number Priority Date Filing Date Title
JP2018073662 2018-04-06
JP2018-073662 2018-04-06

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WO2019194244A1 true WO2019194244A1 (fr) 2019-10-10

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7395949B2 (ja) 2019-10-21 2023-12-12 東洋紡エムシー株式会社 積層濾材

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JP2000288303A (ja) * 1999-04-06 2000-10-17 Asahi Chem Ind Co Ltd 油水分離フィルターおよび油水混合液の粗粒化分離方法
JP2010019151A (ja) * 2008-07-10 2010-01-28 Nifco Inc 燃料用フィルタ
JP2010509039A (ja) * 2006-11-02 2010-03-25 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー 燃料フィルター
JP2012200682A (ja) * 2011-03-25 2012-10-22 Asahi Kasei Fibers Corp 油水分離フィルター
JP2016507371A (ja) * 2013-01-18 2016-03-10 クス フィルトレーション，インコーポレイティド チャンネルデプス濾過媒体
WO2017007348A1 (fr) * 2015-07-08 2017-01-12 Amazon Filters Spółka z Ograniczoną Odpowiedzialnością Système de séparation pour l'élimination simultanée de particules solides et de gouttelettes liquides en suspension dans un autre liquide

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000288303A (ja) * 1999-04-06 2000-10-17 Asahi Chem Ind Co Ltd 油水分離フィルターおよび油水混合液の粗粒化分離方法
JP2010509039A (ja) * 2006-11-02 2010-03-25 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー 燃料フィルター
JP2010019151A (ja) * 2008-07-10 2010-01-28 Nifco Inc 燃料用フィルタ
JP2012200682A (ja) * 2011-03-25 2012-10-22 Asahi Kasei Fibers Corp 油水分離フィルター
JP2016507371A (ja) * 2013-01-18 2016-03-10 クス フィルトレーション，インコーポレイティド チャンネルデプス濾過媒体
WO2017007348A1 (fr) * 2015-07-08 2017-01-12 Amazon Filters Spółka z Ograniczoną Odpowiedzialnością Système de séparation pour l'élimination simultanée de particules solides et de gouttelettes liquides en suspension dans un autre liquide

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7395949B2 (ja) 2019-10-21 2023-12-12 東洋紡エムシー株式会社 積層濾材

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