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
  • B01D29/01—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
  • B01D29/111—Making filtering elements
• • 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
  • B01D29/50—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 multiple filtering elements, characterised by their mutual disposition
  • B01D29/52—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 multiple filtering elements, characterised by their mutual disposition in parallel connection
  • B01D29/54—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 multiple filtering elements, characterised by their mutual disposition in parallel connection arranged concentrically or coaxially
• • 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
  • B01D29/50—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 multiple filtering elements, characterised by their mutual disposition
  • B01D29/56—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 multiple filtering elements, characterised by their mutual disposition in series connection
  • B01D29/58—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 multiple filtering elements, characterised by their mutual disposition in series connection arranged concentrically or coaxially
• • 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
  • B01D35/0273—Filtering elements with a horizontal or inclined rotation or symmetry axis submerged in tanks or reservoirs
• • 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
  • B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
  • B01D35/147—Bypass or safety valves
• • 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
  • B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
  • B01D35/157—Flow control valves: Damping or calibrated passages
  • B01D35/1576—Calibrated passages
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
  • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
  • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
  • F01M11/0004—Oilsumps
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16H—GEARING
  • F16H57/00—General details of gearing
  • F16H57/04—Features relating to lubrication or cooling or heating
  • F16H57/0402—Cleaning of lubricants, e.g. filters or magnets
  • F16H57/0404—Lubricant filters
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01D—SEPARATION
  • B01D2201/00—Details relating to filtering apparatus
  • B01D2201/12—Pleated filters
  • B01D2201/127—Pleated filters with means for keeping the spacing between the pleats
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
  • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
  • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
  • B29C65/16—Laser beams
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C66/00—General aspects of processes or apparatus for joining preformed parts
  • B29C66/01—General aspects dealing with the joint area or with the area to be joined
  • B29C66/05—Particular design of joint configurations
  • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
  • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
  • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
  • B29C66/1312—Single flange to flange joints, the parts to be joined being rigid
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C66/00—General aspects of processes or apparatus for joining preformed parts
  • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
  • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
  • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
  • B29C66/543—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining more than two hollow-preforms to form said hollow articles
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
  • B29L2031/00—Other particular articles
  • B29L2031/14—Filters
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
  • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
  • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
  • F01M11/0004—Oilsumps
  • F01M2011/007—Oil pickup tube to oil pump, e.g. strainer
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16N—LUBRICATING
  • F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
  • F16N39/06—Arrangements for conditioning of lubricants in the lubricating system by filtration
  • F16N2039/065—Arrangements for conditioning of lubricants in the lubricating system by filtration inlet foot filter

Definitions

• Various embodiments of the invention pertain to fluid filters, including for example filters for vehicle oils such as transmission oils.
• some embodiments provide a filter having a fine media and a coarse media, with a bypass of the fine media.
• a fluid filter comprising a housing having an inlet and an outlet: and a fine media element disposed in the housing, the fine media element having a fine media and a plurality of apertures therethrough so that all fluid flowing through the filter passes through either the fine media or the apertures.
• a fluid filter comprising a housing having an inlet and an outlet, a fine media element disposed in the housing, the fine media element having a fine media and a plurality of apertures therethrough so that all fluid flowing through the filter passes through either the fine media or the apertures, wherein the fine media element is an overmolded pleat pack, and wherein the fine media element has a peripheral flange and the apertures are disposed on the peripheral flange; and a coarse media element disposed in the housing, the coarse media element having a coarse media so that all fluid flowing through the filter passes through the coarse media.
• FFIIGG.. 9 is a detail view of the area W2 of FIG. 8. DETAILED DESCRIPTION
• FIG. 1 depicts a filter 10 according to an example of an embodiment.
• the filter 10 has a lower housing 12 that has an inlet 14, and an upper housing 16 that has an outlet 18.
• Each housing 12 and 16 may also be referred to as a respective housing shell.
• the upper and lower housings 12 and 16 are joined together at their peripheral edges to form an enclosed chamber.
• FIGS. 3 and 5 show an example of such joining, in which a flange 13 of the lower housing 12 and a flange 17 of the upper housing 16 are laser welded to form a sealed attachment between the housings 12 and 16.
• Other methods of attachment and sealing such as gluing, bonding or friction or vibration welding may be used, for example.
• a fine filter element 20 is mounted in the chamber.
• the fine filter 20 in this example is a pleat pack type.
• the fine filter 20 has a molded plastic frame 22 that is overmolded onto and around a fine media 24.
• the fine media 24 may be a high-efficiency media and/or a "microblast" media or a blend of those or other media, and may be of a felt type or other general style.
• the fine media is pleated in this example but could also be flat or otherwise bent or curved.
• the fine media 24 has a pleated or folded configuration which increases surface area for a given footprint compared to a flat media in the same footprint.
• the frame 22 is a unitary molded part that includes a peripheral frame region 26 and internal stiffening ribs 28.
• FIGS. 3 and 5 show an example where the peripheral frame region 26 has a flange 30 that is trapped between the joined areas of the housings 12 and 26 and may be also attached to the lower housing 12, such as by vibration welding or any other method such as those described above.
• the peripheral frame region 26 has a plurality of apertures 30 therethrough.
• the apertures 30 are regularly spaced, substantially square holes all the way around the perimeter of the peripheral frame region 26 of the pleat pack type fine filter element 20, so that in this example the apertures 30 are on four sides of the rectangular pleat pack type fine filter element 20.
• the apertures 30 may have other shapes and may be irregularly arranged, and may be only on some sides or some regions of the periphery of the fine filter element 20.
• apertures such as apertures 30 could also or alternatively be placed through internal ribs such as the stiffening ribs 28.
• FIG. 9 shows an example of the apertures 30 in detail, which include in this example a larger open region 30A and a smaller open region 30B.
• FIGS 1 and 3 in particular depict a coarse filter element 40.
• the coarse filter element 40 is a pleat pack type with a frame 42 overmolded onto a coarse media 44 with a peripheral frame 46 and internal stiffening ribs 48.
• the coarse media 44 may be a screen or mesh such as a wire mesh and/or a coarse felt media or a blend of those or other media.
• the coarse media 44 and fine media 24 are selected so that the coarse media 44 creates a lower pressure drop to fluid flowing therethrough than the pressure drop created by the fine media 24 to the same fluid flowing therethrough, although in some aspects the fine media 24 may provide more complete filtration effects than the coarse media 44.
• the coarse media 44 is pleated in this example but could also be flat or otherwise bent or curved.
• FIG. 3 shows the peripheral frame 46 being positioned against and mounted to the upper housing 14. This may be done by bonding, laser welding or other methods such as a mechanical fit.
• the fine filter element 20 and the coarse filter element 40 in this example are both shown as being a pleat pack type, in other examples one or both filter elements 20 and 40 may be of a flat or other type. Also although the fine filter element 20 is shown upstream of the coarse filter element 40 so that the fine filter element 20 is closer to the inlet side of the direction of the flow and the coarse filter element 40 is closer to the outlet side of direction of flow, this arrangement can be reversed to place the coarse filter element 40 upstream.
• the apertures 30 can in some examples have some or many advantages.
• the apertures 30 may be considered in some cases as flow control openings, in that fluid being filtered will flow through them. In cold conditions, when the fluid is more viscous, some or all of the fluid, depending on pressure and viscosity, can flow through the apertures 30 to relieve the pressure drop. In warmer conditions, when the fluid is less viscous, more fluid will tend to flow through the fine media 24. In this example, all fluid always flows through the coarse media 44.
• the provision of a plurality of numerous small peripheral apertures 30 can provide a large total bypass area while maintaining a small footprint.
• a bypass area to outlet area ratio of 1 :1 or 1 :1.25 may be desired, and this bypass area can be fit conveniently into the periphery of the fine filter element 20.
• Placing the passive bypass in the form of many small apertures 30 on the periphery of the fine filter element 20 may allow the bypassed fluid to be more evenly distributed around the general flow path of all the fluid, and thus provide a desirable transitional flow characteristic between cold and warm states, as compared to a single large bypass region.
• the upper and lower housings 12 and 16 retain a compact footprint.
• many small apertures similar to apertures 30 can be placed in more central rib parts of the fine filter element 20 instead of, or in addition to, apertures 30 around the periphery of the fine filter element 20.

Landscapes

• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Filtering Of Dispersed Particles In Gases (AREA)
• Filtration Of Liquid (AREA)
• General Details Of Gearings (AREA)
• Filtering Materials (AREA)
• Separation Using Semi-Permeable Membranes (AREA)

Priority Applications (5)

Applications Claiming Priority (2)

Publications (1)

Family

ID=52994218

Family Applications (1)

Country Status (7)

Families Citing this family (10)

Citations (8)

Family Cites Families (5)

• 2013
  • 2013-10-30 US US14/066,851 patent/US10086318B2/en not_active Expired - Fee Related
• 2014
  • 2014-10-29 MX MX2016005672A patent/MX375705B/es active IP Right Grant
  • 2014-10-29 CN CN201480059579.7A patent/CN105744999B/zh not_active Expired - Fee Related
  • 2014-10-29 KR KR1020167012086A patent/KR20160102157A/ko not_active Ceased
  • 2014-10-29 JP JP2016527383A patent/JP6523277B2/ja not_active Expired - Fee Related
  • 2014-10-29 EP EP14857092.2A patent/EP3062904B1/en active Active
  • 2014-10-29 WO PCT/US2014/062997 patent/WO2015066235A1/en not_active Ceased

Patent Citations (8)

Non-Patent Citations (1)

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