[go: up one dir, main page]

WO2018139273A1 - Dispositif de filtrage - Google Patents

Dispositif de filtrage Download PDF

Info

Publication number
WO2018139273A1
WO2018139273A1 PCT/JP2018/001055 JP2018001055W WO2018139273A1 WO 2018139273 A1 WO2018139273 A1 WO 2018139273A1 JP 2018001055 W JP2018001055 W JP 2018001055W WO 2018139273 A1 WO2018139273 A1 WO 2018139273A1
Authority
WO
WIPO (PCT)
Prior art keywords
case
tank
lid
filter
opening
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.)
Ceased
Application number
PCT/JP2018/001055
Other languages
English (en)
Japanese (ja)
Inventor
信 石塚
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.)
Yamashin Filter Corp
Original Assignee
Yamashin Filter Corp
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 Yamashin Filter Corp filed Critical Yamashin Filter Corp
Publication of WO2018139273A1 publication Critical patent/WO2018139273A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • 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
    • 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
    • B01D29/01—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 flat filtering elements
    • B01D29/05—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 flat filtering elements supported
    • B01D29/07—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 flat filtering elements supported with corrugated, folded or wound filtering sheets
    • 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
    • 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
    • B01D35/027—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks rigidly mounted in or on tanks or reservoirs

Definitions

  • the present invention relates to a filter device.
  • a filter for filtering oil introduced from an oil inlet is disposed inside the side wall of the case in an annular shape, and the oil flows from the outside of the filter through the filter to the oil reservoir through the central passage.
  • An oil tank with a filter configured to do this is disclosed.
  • a filter upper space is formed in the upper part of the filter
  • a filter lower space is formed in the lower part of the filter
  • the filter lower space and the filter upper space are communicated with a central passage which is a hollow part of the filter.
  • the present invention has been made in view of such circumstances, and an object of the present invention is to provide a filter device that can surely evacuate the air inside and prevent the liquid to be filtered from leaking out of the tank. To do.
  • a filter device is, for example, a filter device provided in a tank having an opening formed on an upper surface thereof, and is provided outside the tank so as to cover the opening. And a bottomed substantially cylindrical case provided on the lower side of the lid so as to protrude into the tank through the opening, and an inflow for allowing liquid to flow into the case
  • An inflow portion having an inflow port formed on a side surface of the case, and a bottomed substantially cylindrical filter element provided inside the case, the filter element having a substantially hollow cylindrical shape
  • a filter element having an outlet that is an opening through which the liquid flows out at a position overlapping the hollow portion of the filter medium in a plan view of the upper end surface facing the bottom surface, the filter element having the upper end Is in contact with the back surface of the lid, and the lid is formed with an outflow part that communicates the space inside the filter medium with the space inside the tank and outside the case, ,
  • a hole having a first opening and a second opening opened on the back surface of
  • the liquid that has flowed into the case provided so as to protrude into the tank is provided with the filter element provided in the case so that the upper end surface is in contact with the back surface of the lid. And flows out into the space inside the filter medium.
  • the lid is formed with an outflow part that communicates the space inside the filter medium with the space inside the tank and outside the case, and the liquid passes through the outflow part from the inside of the filter medium to the outside of the filter device. And leaked. Therefore, the air (initial air) inside the filter device before the operation is pushed out by the liquid and discharged from the outflow portion to the outside of the filter device. Thereby, the initial air of the filter device can be surely removed.
  • the outflow portion has the second opening disposed between the side surface of the tank and the side surface of the case in a plan view, and the filtered liquid flows from the second opening. It flows out into the space inside the tank and outside the case. Thereby, it is possible to prevent the liquid from leaking out of the tank.
  • the outflow portion may include a plurality of the second openings, and the plurality of second openings may be arranged at equal intervals on a circle outside the case and adjacent to the case in plan view. . Thereby, a liquid can be uniformly poured into a tank.
  • a substantially cylindrical tubular portion provided on the lower side of the upper surface of the lid or the tank so as to protrude into the tank, the outer side of the case with respect to the case It has a cylindrical part provided concentrically, and the second opening may be arranged outside the case and inside the cylindrical part in plan view. Thereby, it is possible to prevent the liquid flowing out from the outflow portion from scattering into the tank.
  • the sum total of the areas of the second openings may be equal to or greater than the area of the first openings, and the outflow portion may be formed such that the flow passage cross-sectional area does not decrease from the upstream side toward the downstream side. . Thereby, air and a liquid can be made to flow stably in the outflow part.
  • a diffusion plate provided on the outer peripheral surface of the case, wherein a substantially circular hole into which the case is inserted is formed at a substantially central position, and the size in plan view is substantially larger than the outer peripheral surface of the cylindrical portion.
  • a plate-shaped diffusion plate may be provided, and the diffusion plate may be provided below the cylindrical portion so as to have a gap between the cylindrical portion and the diffusion plate.
  • FIG. 2 It is a principal part perspective view which shows the outline of the tank 100 provided with the return filter 1 which is one Embodiment of this invention.
  • 2 is a cross-sectional view showing an outline of a return filter 1.
  • FIG. It is the perspective view which shows the outline of the return filter 1, and is the figure which expanded a part and displayed the cross section.
  • It is sectional drawing which shows the outline of the return filter 2 which is one Embodiment of this invention.
  • the filter device according to the present invention will be described by taking a return filter provided inside the hydraulic oil tank as an example, but the present invention can be applied to various types of filter devices.
  • FIG. 1 is a cross-sectional view showing an outline of a tank 100 provided with a return filter 1 according to an embodiment of the present invention.
  • FIG. 1 hatching indicating a cross section is omitted.
  • the tank 100 is installed in a work machine (not shown) (for example, a hydraulic device), and is a tank for storing hydraulic oil provided in a hydraulic circuit for hydraulic oil supplied to the hydraulic device.
  • a work machine for example, a hydraulic device
  • the tank 100 is not limited to the one provided in the hydraulic circuit.
  • the tank 100 may store liquid other than hydraulic oil.
  • the tank 100 has a box shape, for example, and is hollow inside.
  • the tank 100 mainly includes a bottom surface 101, a top surface 102 that faces the bottom surface 101, and a side surface 103 (surface on the back side in FIG. 1) that is substantially orthogonal to the bottom surface 101 and the top surface 102.
  • An opening 102 a is formed on the upper surface 102.
  • a mounting plate 104 for mounting the return filter 1 is provided on the upper side (+ z side) of the upper surface 102.
  • a through hole 104 a is formed in the mounting plate 104.
  • the return filter 1 is inserted into the tank 100 through the opening 102a and the through hole 104a.
  • the opening 102a and the through hole 104a are covered with a lid 30 (detailed later) of the return filter 1.
  • the mounting plate 104 is not essential. For example, if the thickness of the upper surface 102 of the tank 100 is increased so that the upper surface 102 satisfies the function of the mounting plate 104, the mounting plate 104 is unnecessary. Hereinafter, it is assumed that the mounting plate 104 is included in the tank 100.
  • the side pipe 103 is fitted with an inflow pipe 105 that allows hydraulic oil to flow into the return filter 1.
  • the inflow pipe 105 guides hydraulic oil from the outside of the tank 100 to the return filter 1.
  • the hydraulic oil guided to the return filter 1 is filtered by the return filter 1 and stored in the tank 100.
  • an outlet (not shown) is formed through which hydraulic oil in the tank 100 flows out to a hydraulic pump (not shown) or the like.
  • a suction strainer (not shown) is provided inside the tank 100, and the hydraulic oil that has passed through the suction strainer flows out from the outlet to the outside of the tank 100.
  • FIG. 2 is a cross-sectional view schematically showing the return filter 1.
  • a part of hatching showing a cross section is omitted.
  • the return filter 1 mainly includes a case 10, a filter element 20, a lid body 30, and a tubular portion 40.
  • the case 10 is formed of a material having high corrosion resistance (for example, a metal such as stainless steel).
  • the case 10 is provided on the lower side ( ⁇ z side) of the lid 30 so as to protrude into the tank 100 (see FIG. 1).
  • the case 10 has a substantially cylindrical shape with a bottom, and mainly includes a lower case 11 and an upper case 12.
  • the lower case 11 has a substantially cylindrical shape with a bottom, and is provided below the upper case 12.
  • the upper case 12 has a substantially cylindrical shape and is provided on the lower side of the lid 30.
  • the lower case 11 and the upper case 12 are hollow, and the filter element 20 is mainly provided in the inside.
  • an inflow port 11 b through which hydraulic oil flows into the case 10 is formed.
  • An inflow pipe 105 (see FIG. 1) is connected to the inflow port 11b. The hydraulic oil that has passed through the inflow pipe 105 and the inflow port 11b flows so as to draw a spiral inside the case 10 (see a two-dot chain line arrow in FIG. 2).
  • An elastic member 15 is provided on the bottom surface 11 c of the lower case 11.
  • the elastic member 15 is, for example, a coil spring, and presses the filter element 20 upward (+ z direction). As a result, the filter element 20 is held inside the case 10.
  • a pipe 11d is formed on the bottom surface 11c.
  • the pipe 11d makes it easy for hydraulic oil to fall from the case 10 into the tank 100 when the filter element 20 is replaced.
  • the upper case 12 is provided on the lid 30 via the mounting plate 13 provided on the back surface of the lid body 30, but the mounting plate 13 is not essential and is directly on the back surface of the lid body 30.
  • An upper case 12 may be provided.
  • the case 10 includes the lower case 11 and the upper case 12, but these may be integrated.
  • the cylindrical portion 40 is a substantially cylindrical member and is formed of a material having high corrosion resistance (for example, a metal such as stainless steel). Similar to the case 10, the cylindrical portion 40 is provided on the lower side ( ⁇ z side) of the lid body 30 so as to protrude into the tank 100 (see FIG. 1). Further, the cylindrical portion 40 is provided concentrically with respect to the case 10 outside the case 10. In the vicinity of the upper end of the tubular portion 40, a hole 40a is formed for flowing hydraulic oil when the oil level in the tank 100 becomes high.
  • a hole 40a is formed for flowing hydraulic oil when the oil level in the tank 100 becomes high.
  • the cylindrical portion 40 is provided below the lid 30, but the cylindrical portion 40 may be provided below the upper surface 102. Moreover, the hole 40a is not essential.
  • the filter element 20 is a bottomed substantially cylindrical member and is provided inside the case 10. Further, the upper end surface of the filter element 20 is provided so as to contact the back surface of the lid 30.
  • the filter element 20 mainly includes a filter medium 21, an outer cylinder 22, an inner cylinder 23, plates 24 and 25, a plate-like portion 26, and a valve 27.
  • the filter medium 21 is a substantially hollow cylindrical member having openings at both ends.
  • the filter medium 21 is formed by folding a filter paper made of synthetic resin, paper, or the like, and connecting both ends of the folded filter paper into a cylindrical shape.
  • an outer cylinder 22 having a hole through which hydraulic oil passes is provided in substantially the entire area.
  • an inner cylinder 23 in which holes through which hydraulic oil passes is formed in substantially the entire area is provided inside the filter medium 21.
  • the outer cylinder 22 and the inner cylinder 23 are not essential.
  • a plate 24 is provided at the lower end of the filter medium 21, and a plate 25 is provided at the upper end.
  • the plate 24 covers the lower end surfaces of the filter medium 21, the outer cylinder 22 and the inner cylinder 23, and the plate 25 covers the upper end surfaces of the filter medium 21, the outer cylinder 22 and the inner cylinder 23.
  • the plate 24 is a member having a substantially disc shape or a bottomed substantially cylindrical shape, and is formed of resin or metal.
  • the plate 24 is provided with a plate-like portion 26 and a valve 27.
  • the plate 24, the plate-like portion 26 and the valve 27 constitute the bottom surface of the filter element 20.
  • a plate-like portion 26 is provided on the lower surface 24 a of the plate 24.
  • the plate-like portion 26 is a substantially disk-shaped member and is formed of resin or metal.
  • the plate-like portion 26 has a concave portion 26 a where the elastic member 15 is provided and a convex portion 26 b where the valve 27 is provided.
  • the convex portion 26 b is inserted into the opening portion 24 b formed in the center portion of the plate 24.
  • the valve 27 has a spring 27a and a plate-like portion 27b. Normally, the valve 27 is closed as shown in FIG. 2, but when the filter medium 21 becomes clogged and the pressure in the case 10 increases, the plate-like portion 27b moves upward against the elastic force of the spring 27a. Then, the valve 27 is opened. As a result, hydraulic oil flows into the space (space S2) inside the filter medium 21 from the space (space S1) inside the case 10 and outside the filter element 20, and the return filter 1 is prevented from being damaged.
  • the valve 27 is not essential.
  • the plate 25 is a member having a substantially disc shape or a bottomed substantially cylindrical shape, and is formed using resin or metal.
  • the plate 25 is an upper end surface facing the bottom surface of the filter element 20.
  • an opening is formed at a position overlapping the hollow portion of the filter medium 21 in plan view. This opening is an outlet 25a from which hydraulic oil flows out.
  • the lid 30 is provided outside the tank 100 (in the present embodiment, above the mounting plate 104 provided outside the tank 100) so as to cover the opening 102a and the through hole 104a (see FIG. 1). .
  • the lid 30 mainly has a first lid 31, a second lid 32, and a third lid 33.
  • the first lid 31 and the second lid 32 are substantially plate-like members, and the third lid 33 is a substantially cylindrical member whose one end is covered.
  • the lid 30 is formed with an outflow portion 35 that communicates with the space S2 through the outflow port 25a.
  • the outflow portion 35 is a hole that communicates the space S2 with the space inside the tank 100 and outside the case 10 (space S3).
  • FIG. 3 is a perspective view showing an outline of the return filter 1, and is a partially enlarged and sectional view.
  • a part of hatching showing a cross section is omitted.
  • a second lid 32 is provided above the first lid 31.
  • the third lid 33 is provided on the upper side of the first lid 31 so as to cover the second lid 32.
  • the third lid 33 is fixed to the first lid 31 by bolts 34. Thereby, the 1st lid
  • a seal member 36 (for example, an O-ring) is provided between the first lid 31 and the third lid 33 and between the first lid 31 and the mounting plate 13, to prevent hydraulic oil from flowing outside. .
  • the first lid 31 is fixed to the mounting plate 104 (see FIG. 1) with the mounting plate 13 in between. As a result, the lid 30 is fixed to the tank 100.
  • the upper case 12 and the cylindrical portion 40 are provided on the lower surface of the first lid 31 (that is, the lid body 30).
  • the upper case 12 and the tubular portion 40 are provided on the mounting plate 13 provided on the lower surface of the first lid 31.
  • a hole 31a having a diameter equal to or larger than the diameter of the upper case 12 and penetrating through the first lid 31 in the thickness direction (z direction) is formed in the approximate center of the first lid 31.
  • the second lid 32 is formed with a convex portion 32a protruding downward toward the hole 31a in the vicinity of the center.
  • a concave portion 32b is formed in the convex portion 32a, and the plate 25 is inserted into the concave portion 32b. Thereby, the filter element 20 is provided below the second lid 32 (that is, the lid 30).
  • first lid 31 and the second lid 32 are separate components, but the first lid 31 and the second lid 32 may be a single component.
  • a portion of the convex portion 32a on the inner peripheral side from the concave portion 32b is inserted into the inside of the outlet 25a, that is, the hollow portion (space S2) of the filter medium 21 and the inner cylinder 23.
  • One end of the outflow portion 35 is opened to the convex portion 32a, whereby the space S2 and the outflow portion 35 communicate with each other.
  • the outflow portion 35 is formed in the first lid 31 and the second lid 32. Hereinafter, the outflow part 35 will be described.
  • a hole 32c having a diameter smaller than the inner diameter of the filter medium 21 and penetrating through the second lid 32 in the thickness direction (z direction) is formed at substantially the center of the second lid 32.
  • the opening exposed on the back surface of the second lid 32 of the hole 32c corresponds to the first opening of the present invention.
  • the hole 32c (first opening H1) is disposed at a position overlapping the outlet 25a in plan view.
  • the first lid 31 is formed with a hole 31b that penetrates the first lid 31 in the thickness direction (z direction).
  • a hole 13a is formed in the attachment plate 13 at a position overlapping the hole 31b in a plan view (when viewed from the + z direction). Since the mounting plate 13 is not essential as already described, the holes 31b and 13a are hereinafter simply referred to as holes 31b.
  • the opening exposed on the back surface of the lid 30 of the hole 31b corresponds to the second opening of the present invention.
  • the hole 31b (second opening H2) is arranged outside the case 10 (here, the upper case 12) and inside the cylindrical portion 40 in plan view.
  • a total of four holes 31b are formed on the + x side, the -x side, the + y side (not shown), and the -y side (not shown) of the hole 31a.
  • the four holes 31b are arranged along a circle C that is outside the case 10 and adjacent to the case 10 in plan view.
  • the four holes 31b are arranged on the circle C at equal intervals.
  • the second lid 32 is formed with a groove 32d that connects the hole 32c and the hole 31b.
  • the grooves 32d are formed radially around the hole 32c in plan view.
  • a portion of the groove 32d that overlaps the hole 31b in plan view is a hole that penetrates the second lid 32 in the thickness direction (z direction).
  • the total area of the second openings H2 is equal to or greater than the area of the first openings H1 (the inner diameter of the holes 32c).
  • the cross-sectional area of the groove 32d is substantially the same as the area of the second opening H2. That is, the flow passage cross-sectional area of the outflow portion 35 is made substantially constant so that the flow passage cross-sectional area of the outflow portion 35 does not become narrower from the upstream side toward the downstream side.
  • the two-dot chain line arrows in FIGS. 1 and 2 indicate the flow of hydraulic oil.
  • the hydraulic oil that has flowed into the space S1 from the inlet 11b flows from the outside to the inside of the filter medium 21, and the filtered hydraulic oil flows into the space S2 inside the filter medium 21.
  • the spaces S1 and S2 are filled with air. This air is called initial air.
  • the initial air passes through the outflow portion 35 and passes through the space S1.
  • S2 is discharged into the space S3.
  • the hole 31b is disposed between the upper case 12 and the cylindrical portion 40 in a plan view, when the filtered hydraulic oil is discharged to the space S3 through the outflow portion 35, the upper case 12 is provided. And the cylindrical portion 40, it falls downward ( ⁇ z direction). Since there is the cylindrical portion 40, the hydraulic oil does not scatter in the tank 100.
  • the filtered hydraulic oil is evenly distributed between the upper case 12 and the cylindrical portion 40 in the circumferential direction. Flowing. Therefore, the hydraulic oil can be made to uniformly flow into the tank 100.
  • the air (initial air) inside the return filter 1 can be surely removed.
  • the hole 31b is disposed outside the upper case 12 and inside the cylindrical portion 40 in plan view, air and hydraulic oil can flow out into the space S3 without leaking outside.
  • the number of holes 31b and grooves 32d is four, but the number of holes 31b and grooves 32d is not limited to four.
  • the number of the holes 31b and the grooves 32d may be one or plural.
  • the inner diameter of the hole 32c is smaller than the inner diameter of the outlet 25a, but the inner diameter of the hole 32c is increased as much as possible in order to increase the cross-sectional area of the outlet 35, and It is desirable that the cross-sectional area is substantially the same as the area of the outlet 25a.
  • the flow passage cross-sectional area of the outflow portion 35 is made substantially constant so that air and hydraulic oil can easily flow.
  • the outflow portion 35 has a flow passage cross-sectional area from the upstream side to the downstream side. What is necessary is just to form so that it may not become small as it goes to.
  • the cylindrical portion 40 is provided outside the case 10, but the cylindrical portion 40 is not essential.
  • the hole 31b may be disposed between the side surface of the tank 100 and the side surface of the case 10 (here, the upper case 12) in plan view.
  • the hole 31b is desirably arranged at a position as close as possible to the outer peripheral surface of the case 10 in plan view.
  • the filtered hydraulic oil flows downward between the upper case 12 and the tubular portion 40, but the filtered hydraulic oil flows in this form. Not limited.
  • the second embodiment of the present invention is a form in which the filtered hydraulic oil that has passed between the upper case 12 and the tubular portion 40 flows outward.
  • the return filter 2 according to the second embodiment of the present invention will be described below.
  • symbol is attached
  • FIG. 4 is a cross-sectional view showing an outline of the return filter 2.
  • the return filter 2 mainly includes a case 10, a filter element 20, a lid body 30, a tubular portion 40, and a diffusion plate 41.
  • the diffusion plate 41 is a substantially disc-shaped member provided on the outer peripheral surface of the case 10 (here, the lower case 11). A substantially circular hole into which the lower case 11 is inserted is formed in the approximate center of the diffusion plate 41. The diameter of the outer peripheral portion of the diffusion plate 41 is larger than the diameter of the outer peripheral surface of the tubular portion 40.
  • the diffusion plate 41 has a substantially disc shape, but the shape of the diffusion plate 41 is not limited to this.
  • the diffuser plate 41 may have any shape as long as the size of the diffuser plate 41 in plan view is larger than the outer peripheral surface of the cylindrical portion 40.
  • the diffusion plate 41 may have a substantially rectangular shape in plan view.
  • the diffusion plate 41 is provided on the lower side of the tubular portion 40 so that there is a gap between the lower surface 40b of the tubular portion 40 and the upper surface 41a of the diffusion plate 41. In other words, the diffusion plate 41 covers the cylindrical portion 40 when viewed from the ⁇ z direction.
  • the flow of the filtered hydraulic oil can be kept away from the suction strainer. Therefore, it is possible to reduce the possibility that the initial air discharged from the spaces S1 and S2 to the space S3 is sucked into the suction strainer and a malfunction occurs in the hydraulic pump or the like.
  • the diffusing plate 41 is provided in a substantially horizontal direction in a sectional view (or a side view), but the shape of the diffusing plate 41 in the sectional view is not limited to this.
  • the periphery of the diffusion plate 41 may be lower than the center portion.
  • substantially is a concept that includes not only the case of being exactly the same but also errors and deformations that do not lose the identity.
  • the “substantially cylindrical shape” is not limited to a strictly cylindrical shape, and is a concept including a case where it can be identified with a cylindrical shape, for example. Further, for example, when simply expressing as orthogonal, parallel, coincidence, etc., not only strictly orthogonal, parallel, coincidence, etc. but also cases of substantially parallel, substantially orthogonal, substantially coincidence, etc. are included.
  • neighboring means including an area of a certain range (which can be arbitrarily determined) near the reference position. For example, in the case of the vicinity of the end, it is a concept indicating that the region is in a certain range near the end and may or may not include the end.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Filtration Of Liquid (AREA)

Abstract

La présente invention permet de réaliser l'évacuation fiable de l'air présent à l'intérieur et d'empêcher un liquide à filtrer de fuir vers l'extérieur d'un réservoir. Un liquide s'écoulant dans un boîtier (10), qui est disposé en saillie à l'intérieur du réservoir, passe à travers un élément filtre (20), qui est disposé à l'intérieur du boîtier (10) de sorte que la surface d'extrémité supérieure de celui-ci entre en contact avec la surface arrière d'un corps de couvercle (30) et est déchargé dans l'espace interne du matériau de filtration. Formée dans le corps de couvercle (30), une partie d'écoulement sortant (35) assure la communication entre un espace de partie centrale du matériau de filtration, l'intérieur du réservoir (100) et l'espace externe du boîtier (10). Un liquide s'écoule dans la partie d'écoulement sortant (35) à partir d'une première ouverture (H1) disposée à une position chevauchant un orifice de sortie formé dans la surface d'extrémité supérieure de l'élément filtre (20), et le liquide qui s'est écoulé à travers la partie d'écoulement sortant (35) s'écoule vers l'extérieur à partir d'une seconde ouverture (H2) disposée entre une surface latérale du réservoir (100) et une surface latérale du boîtier (10).
PCT/JP2018/001055 2017-01-24 2018-01-16 Dispositif de filtrage Ceased WO2018139273A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017010729A JP2018118204A (ja) 2017-01-24 2017-01-24 フィルタ装置
JP2017-010729 2017-01-24

Publications (1)

Publication Number Publication Date
WO2018139273A1 true WO2018139273A1 (fr) 2018-08-02

Family

ID=62978516

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2018/001055 Ceased WO2018139273A1 (fr) 2017-01-24 2018-01-16 Dispositif de filtrage

Country Status (2)

Country Link
JP (1) JP2018118204A (fr)
WO (1) WO2018139273A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110958907A (zh) * 2017-11-17 2020-04-03 雅玛信过滤器株式会社 过滤器装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10192609A (ja) * 1997-01-09 1998-07-28 Brother Ind Ltd 浄化装置
JP2001500425A (ja) * 1996-09-09 2001-01-16 バンダク・エーエス フィルターエレメント
JP2005288293A (ja) * 2004-03-31 2005-10-20 Yamashin Kogyo Kk 濾過装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001500425A (ja) * 1996-09-09 2001-01-16 バンダク・エーエス フィルターエレメント
JPH10192609A (ja) * 1997-01-09 1998-07-28 Brother Ind Ltd 浄化装置
JP2005288293A (ja) * 2004-03-31 2005-10-20 Yamashin Kogyo Kk 濾過装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110958907A (zh) * 2017-11-17 2020-04-03 雅玛信过滤器株式会社 过滤器装置
EP3711836A4 (fr) * 2017-11-17 2020-12-16 Yamashin-Filter Corp. Dispositif de filtrage
CN110958907B (zh) * 2017-11-17 2021-10-22 雅玛信过滤器株式会社 过滤器装置
US11541338B2 (en) 2017-11-17 2023-01-03 Yamashin-Filter Corp. Filter device

Also Published As

Publication number Publication date
JP2018118204A (ja) 2018-08-02

Similar Documents

Publication Publication Date Title
JP2018086625A (ja) フィルタ装置及び濾過装置
JP6592329B2 (ja) フィルタ装置
US10702808B2 (en) Filter device and filtration device
JP6955492B2 (ja) フィルタ装置
WO2017209054A1 (fr) Dispositif de filtration
JP6613101B2 (ja) リターンフィルタ
JP6892295B2 (ja) フィルタ装置及び濾過装置
JP2016036809A (ja) マルチカートリッジフィルタアダプタ及びインタフェースシステム及び方法
JP2018202365A (ja) タンク装置及びフィルタ装置
JP7406550B2 (ja) フィルタ装置
WO2018139273A1 (fr) Dispositif de filtrage
KR102695274B1 (ko) 필터 장치
JP4830929B2 (ja) オイルフィルタ
CN111828413B (zh) 过滤器装置
JP6839520B2 (ja) フィルタ装置
JP2017213555A (ja) フィルタ装置
JP3225792U (ja) フィルタ装置及び濾過装置
JP4308246B2 (ja) 燃料フィルタ
JP2008274915A (ja) エレメント交換型流体フィルタ
JP2022171458A (ja) 燃料フィルタ
WO2023140296A1 (fr) Crépine d'aspiration
JPWO2019235530A1 (ja) フィルタ装置
US20160107110A1 (en) Filter assembly for fluid supply system

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18744941

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18744941

Country of ref document: EP

Kind code of ref document: A1