CN104338365A - Filter devcie of signal equipment with determined resistance - Google Patents
Filter devcie of signal equipment with determined resistance Download PDFInfo
- Publication number
- CN104338365A CN104338365A CN201410357556.6A CN201410357556A CN104338365A CN 104338365 A CN104338365 A CN 104338365A CN 201410357556 A CN201410357556 A CN 201410357556A CN 104338365 A CN104338365 A CN 104338365A
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- Prior art keywords
- filter
- filter element
- electric
- resistance
- circuit
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- 239000012530 fluid Substances 0.000 claims abstract description 23
- 230000033228 biological regulation Effects 0.000 claims abstract description 20
- 238000001914 filtration Methods 0.000 claims abstract description 19
- 230000005540 biological transmission Effects 0.000 claims abstract description 3
- 239000004020 conductor Substances 0.000 claims description 35
- 230000011664 signaling Effects 0.000 claims description 30
- 238000010304 firing Methods 0.000 claims description 21
- 230000008054 signal transmission Effects 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000010276 construction Methods 0.000 claims description 6
- 239000000446 fuel Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 description 31
- 238000011045 prefiltration Methods 0.000 description 24
- 230000005611 electricity Effects 0.000 description 9
- 239000002245 particle Substances 0.000 description 9
- 230000008859 change Effects 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 229920000049 Carbon (fiber) Polymers 0.000 description 4
- 239000004917 carbon fiber Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 230000006698 induction Effects 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 230000005520 electrodynamics Effects 0.000 description 2
- 238000005189 flocculation Methods 0.000 description 2
- 230000016615 flocculation Effects 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000013528 metallic particle Substances 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 239000012188 paraffin wax Substances 0.000 description 2
- 238000005240 physical vapour deposition Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000693 micelle Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000005325 percolation Methods 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
-
- 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
- F01M11/03—Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/13—Supported filter elements
- B01D29/15—Supported filter elements arranged for inward flow filtration
- B01D29/21—Supported filter elements arranged for inward flow filtration with corrugated, folded or wound sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/18—Heating or cooling the filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/003—Filters in combination with devices for the removal of liquids
- B01D36/005—Liquid level sensing means, e.g. for water in gasoil-filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/022—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D33/00—Controlling delivery of fuel or combustion-air, not otherwise provided for
- F02D33/003—Controlling the feeding of liquid fuel from storage containers to carburettors or fuel-injection apparatus ; Failure or leakage prevention; Diagnosis or detection of failure; Arrangement of sensors in the fuel system; Electric wiring; Electrostatic discharge
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
- F02M37/30—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by heating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
- F02M37/32—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
- F02M37/42—Installation or removal of filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/40—Special measures for connecting different parts of the filter
- B01D2201/4046—Means for avoiding false mounting of different parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/52—Filter identification means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
- F02M37/24—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by water separating means
- F02M37/26—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by water separating means with water detection means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Filtration Of Liquid (AREA)
- Filtering Materials (AREA)
Abstract
The utility model relates to a filter device (10) filtering fluid and especially fluid of motorcycles. The filter device comprises a filter housing (12,14) and a filter element (24,40) to-be-coupled to the filter housing; the electrical signal equipment (64,66,68,70,72) identifies existence of filter elements meeting regulation; the electrical signal equipment (64,66,68,70,72) is provided with a circuit with determined resistance; the determined resistance is at least determined by transmission resistance filtering medium on the filter element (24,40).
Description
Technical field
The present invention relates to the filter for filtering the fluid of fluid, especially motor vehicle, this filter has filter housings and needs to be couple to the filter element on described filter housings, wherein be provided with electric signalling arrangement for identifying the situation that exists of the filter element conformed with the regulations, described electric signalling arrangement is configured to the circuit with the resistance determined.In addition, the invention still further relates to the purposes of filter element for this filter and this filter.
Background technology
Filter, the especially this filter for being leached from liquid fuel or oil by particle in motor vehicle or other machines are made up of filter housings and the filter element be arranged in wherein usually.Described filter housings has fluid coupling, and guiding with described fluid coupling has fluid to be filtered through described filter element.Described filter element is conductively coupled on described filter housings with the mode fluid that can change for this reason.
In addition, such filter especially often exists when cold start for there is water sensor or pressure sensor to the firing equipment having fluid to be filtered to heat.
In order to use all the time in its process run on such filter and couple the filter element conformed with the regulations, be provided with electric signalling arrangement in known manner for identifying the situation that exists of the filter element conformed with the regulations.This signalling arrangement identifies whether to use and has coupled filter element in other words and whether described filter element is the filter element conformed with the regulations.With pure machinery, for the described filter element conformed with the regulations identification marking (anti-error mistake proofing design) compared with, electric signalling arrangement has the following advantages: they are more difficult copies and provides more multipair described filter element to carry out identifying and the possibility of other diagnosis.Meanwhile, the expense for so electric signalling arrangement is relatively large.
Summary of the invention
According to the present invention, a kind of filter for filtering the fluid of fluid, especially motor vehicle is provided, this filter has filter housings and needs to be couple to the filter element on described filter housings, wherein be provided with electric signalling arrangement for identifying the situation that exists of the filter element conformed with the regulations, described electric signalling arrangement is configured to the circuit with the resistance determined.Resistance is for representing that needs how much voltage can make the electric current determined flow through measuring of electric conductor.Described circuit preferably refers to a kind of loop with small resistor, its when fault or the filter element of loading error time disconnect.The resistance of circuit this can be tried to achieve and filter can be controlled according to the result of trying to achieve, such as out of service.According to the present invention, the described resistance determined at least is participated in determining by the electric conduction resistance of the filter medium be arranged on filter element, the resistance of conduction section that namely formed by filter medium." conduction resistance " this concept is used as the synonym of " resistance " this concept in the context of this application.
For this structure, designing to obtain filter medium, the especially such as filter paper filtration membrane in other words that can conduct electricity according to filter element of the present invention preferably uses.The electric conductivity of described filter medium can advantageously be formed by this mode in material conductive particle being incorporated into filter medium.Filter medium as conduction such as uses and is provided with the filtration membrane that metal level separates metal level in other words.Described metal can be such as aluminium.The sheet resistance of described layered filtration diaphragm coating in other words is preferably less than 1000 ohm every square metre.As an alternative, use be provided with carbon fiber filter medium, preferably have 5% to 10% the filter medium of carbon fiber, described filter medium is especially designed to individual layer and is soaked with phenolic resins.In addition, graphite powder can also be used, to become filter medium thus and to make in this way can conduct according to the rules.The resistance being participated in determining by the conduction resistance of filter medium achieves the type and characteristic of directly inferring the filter medium used.
Because the firing equipment be in filter generally must provide about 100W to the power of about 1000W and generally load the cell voltage of 12V in a motor vehicle, so for filter heat equipment resistance according to formula R=U*U/P(wherein R=resistance, U=voltage, P=power) produce the numerical value that is between 0.14 ohm and 1.4 ohm.Advantageously easily should determine by the measurement of the resistance to whole system (firing equipment and main filter be filter element filter medium in other words in other words), whether there is filter element main filter in other words, and if be, then should determine whether it is the correct filter element main filter that filter medium is correct in other words in other words.This detection can in series circuit (firing equipment and main filter be filter medium filter element " successively arrange " in other words in other words) or in parallel circuit (firing equipment and filter element " parallel connection " layout) realize.In order to ensure reliable identification, too much resistance variations should do not produced owing to adding correct filter element.At this, in series circuit, cause the raising of all-in resistance, and in parallel circuit, cause the reduction of all-in resistance.
Such as described all-in resistance may be in the scope between 101% of heating resistor and 10000% in series circuit, and preferably it is in the scope of 105% and 1000% of described heating resistor.When arranging with parallel circuit, described all-in resistance such as may be in described heating resistor 1% until 99% scope in, be preferably in described heating resistor 10% and 50% between.
If be such as made up of, have the series circuit of the heating resistor of (for citing object) 1 ohm firing equipment and filter element, the resistance of conduction section that so resistance of filter element described in whole system is made up of described filter medium in other words should be between 0.01 ohm (all-in resistance is then equivalent to 101% of described heating resistor) with 99 ohm (all-in resistance is then 10000% of described heating resistor), preferably be between 0.05 ohm and 9 ohm.The feature of the filter element do not used in described series circuit is the great resistance in this conducting branch.If installed filter element, so its resistance value has just been added on the resistance of described firing equipment.That is, controlling electronic installation can identify, whether the resistance of interpolation is equivalent to the resistance of the filter element conformed with the regulations.
If parallel circuit, that is firing equipment and filter element to be in electric arrangement in parallel and described firing equipment has the resistance of 1 ohm in order to object of illustrating, and that is just with R=R(firing equipment) * R(filter element)/(R(firing equipment)+R(filter element)) obtain the all-in resistance of described circuit.That is, in order to obtain being in described heating resistor 1% to 99% scope in all-in resistance, the resistance of the resistance of the described filter element described conduction section be made up of filter medium in other words must be between 0.01 ohm (all-in resistance is 1% of described heating resistor) and 99 ohm (all-in resistance is 99% of described heating resistor).
Equally, independent prefilter advantageously can have unit resistance and can be integrated in a similar fashion in electric circuit.
The controller being such as arranged in described filter outside can so advantageously easily by calibrating this mode to identify to resistance measurement by preserved rating data, and filter element whether (correctly) to be arranged in described filter and the whether correct filter element of described filter element.Then can using the deviation departing from rating data of all-in resistance as faulty message transmission to output unit (such as indicator lamp).Therefore, it is possible to advantageously find obscuring or installing by mistake of described filter element, and avoid the damage of the assembly in the downstream being arranged in described filter.
For being such as arranged in the conductor circuit of the circle that main filter end covers or the resistance for described filter medium itself, even if there is not firing equipment, also there is the thinking of the similar size for described resistance.Usually importantly, the size of the described resistance of design like this, thus the resistance variations in whole system can be determined when there is no larger expense, load in described whole system and remove described main filter filter medium filter element in other words in other words in other words.
Therefore advantageously can also identify the congestion degree of filter medium thereupon.Another conduction resistance of described filter medium is obtained compared with Gao Shihui at congestion degree.
Electric signalling arrangement preferably has at least one electric signal transmission part between filter housings and filter element, and wherein the described resistance determined at least is participated in determining by the electric conduction resistance of signal transmission part in addition.Described electric signal transmission part is preferably provided with contact structures for this reason, and in described contact structures, the contact surface of two contacts has significant contact resistance.Described contact resistance advantageously realizes by the surface treatment of at least one contact surface in described contact surface.For this reason at least one contact surface described be preferably provided with special roughness, special flatness, with the coating of special electric conductivity or the oxide layer that constructs targetedly.
At least one electric signal transmission part described can be such as the contact element be mutually in contact that is electric and machinery if desired, namely be suitable for transmitting the system transmitting electric signal (also transmitting the assembly being transferred in other words and being arranged in below) in other words.At this, described signal transmission part also can (mechanically) contactlessly, such as by induction, realized by magnetic force or similar mechanism by radiation (electromagnetic wave, light etc. of high frequency).
It is circular conductor circuit that electric signal transmission part between filter housings and filter cell is preferably provided with at least local.Described at least local is preferably placed on the end face of described filter element, is especially arranged in main filter end and covers for circular conductor circuit, or is arranged in as an alternative on the end face of described filter housings.Described be such as circular conductor circuit in this as the conductor circuit such as closed on the periphery in the outside of the end face of described main filter end cap around described main filter end cap.Described at least local is that the conductor circuit of circle is preferred with vapour deposition (the Physical Vapour Deposition of the mode of plating by physics there, PVD, Sputtern(sputter)) and/or apply by the vapour deposition (Chemical Vapour Deposition, CVD) of chemistry.Described conductor circuit such as can by metal or by there being the plastics of conducting power to form.It is such as made up of layers of copper and/or aluminium lamination, and described layers of copper and/or aluminium lamination are preferably by layer of precious metal (gold, platinum etc.) or come anti-oxidation and wearing and tearing by nickel dam.Described at least local provides relative large surface with its length and its range of extension for the conductor circuit of circle, corresponding contact element, especially be such as configured to contact plug or contact protuberance moulding the second contact surface can in a particularly advantageous manner with described surperficial acting in conjunction.There is the scheme that situation identifies in what utilize this filter element to conforming with the regulations, can with especially simply and the mode that cost is very cheap on the whole improve attached troops to a unit system, the especially operational reliability of the fuel feed system of attaching troops to a unit of motor vehicle and functional.
Described filter element is preferably coupled on described filter housings by rotary motion, and described at least local extends about the longitudinal axis of described filter element in other words with one heart for circular conductor circuit preferably extends with one heart about described rotary motion.That is, the central spot of the conductor circuit of described circle is on the rotation of described rotary motion.The conductor circuit of described circle can with the second contact surface acting in conjunction.Described second contact surface is then resisted against on described conductor circuit, and component, the such as described filter element of wherein said supporting second contact surface can be then arbitrary relative to the position of rotation of component, the such as described filter housings of the conductor circuit of supporting circle.The location of described filter element relative to described filter housings can be designed with comparalive ease in this way.
In addition according to the present invention, described electric signalling arrangement identifies preferably in the situation that exists of the filter element conformed with the regulations and is jointly assembled into an electric construction unit with the water sensor for identifying the water be blocked in described filter.Thus, in this improvement project, the functional unit being combined into electric electronics in other words at least partially with water sensor of described electric signalling arrangement.Such combination reduces technology overhead, especially about the technology overhead that structural detail and the circuit of electronics lay, thus reduces cost and improve operational reliability simultaneously.
Described electric signalling arrangement preferably in the filter element conformed with the regulations exist situation identify and with for being jointly assembled into electric construction unit to the firing equipment having fluid to be filtered to heat in described filter.Utilize this by be used for the filter element conformed with the regulations there is signalling arrangement that situation identifies and electric firing equipment is integrated in common scheme, the described manufacture expense by filter of the present invention can not only be reduced, and its operational reliability can be improved.Be assembled into the functional of an electric construction unit be easy to inspection and be also easy to safeguard.In such Integrated Solution particularly advantageously, the described signalling arrangement heating tape that the electric heater circuit of described firing equipment can be utilized in passing electric in other words.Both economical due to this dual-use function of described heater circuit, described heater circuit to be directly arranged on described filter element and to be arranged in thus and needs most in the region of heating power.That is, on described filter element, the flocculation having medium to be filtered to occur in colder condition forms the blocking that phenomenon may cause described filter medium, and this point can particularly advantageously be avoided by design of the present invention with described.In addition, such heating tape is conductor solid especially, thus eliminates the damage of the filter element of stand-by signal contact to a great extent and get rid of its wrong identification thus.
Described electric signalling arrangement is preferably also configured to have the electrical conductivity determined and/or the circuit with the inductance determined.Described electrical conductivity in other words electrical conductance is a kind of physical parameter, which show the ability of material conducts electricity.The inverse of described electrical conductance is called as unit resistance.In order to obtain high electrical conductance on filter element, preferably mix silver particle there.By using the semiconductor structure element of reacting to different factors such as temperature or pressure in described circuit, described conductibility can be made to depend on different factors by such electronic component.This semiconductor structure element can be such as be arranged in silicon diode in described circuit or NTC(negative temperature coefficient) resistance.Then can detect these factors equally and can correspondingly control described by filter of the present invention.Described inductance, is also referred to as natural inductance, electrodynamic capacity or self-induction, be the conductor of energising or the electrical characteristic of other components.The conductor of described energising or described component due to electric current change and induce backward voltage (electronic power) thus due to the change in magnetic field.Described backward voltage reacts on curent change.At this, the effect of electrodynamic capacity, such as flow through in the conductor of field excitation along the self induction voltage of conductor loop curent change time can be advantageously used in and identify filter element clearly.Especially the two poles of the earth singly-terminal pair (Zweipole) and electric load in other words, such as, heater on described filter element or pressure sensor can be identified, its mode is, the time-varying electric current of percolation causes the voltage proportional with pace of change by its terminal.
Described signalling arrangement is also preferably configured as the circuit with circuit logic part, is that is configured to the electronic circuit reflecting logic.This circuit logic part extends the feasible program of the filter element be on filter housings being carried out to identification, make to mention above which is beyond that, be relatively easy to and feasible program with low cost thus.Described circuit logic part to be preferably partly configured on described filter housings and to be partly configured on attached troops to a unit filter element, thus produces the acting in conjunction of these parts of described circuit logic part when there is the filter element conformed with the regulations.
Therefore, the circuit of integrated on-off circuit (ASIC), ROM memory and/or the passive structural detail such as had for user's particular design such as can be arranged on the main filter that can change in other words main filter element.The controller be such as arranged in outside described filter thus can also by identifying with the acting in conjunction of this circuit except resistance variations except being detected by the use of (correct) filter element, whether settled described filter element, its whether correct filter element and such as also in order to maintain object to identify, how long described filter element has been installed in described filter.
According to mentioned explanation, be couple to this process on described filter housings along with by described filter element above, advantageously make the on-off circuit of the on-off circuit of described firing equipment and described signalling arrangement close simultaneously.
In addition, described by filter of the present invention in be advantageously provided control appliance, this control appliance is used for the operation controlling described filter according to the signal that detected by described signalling arrangement.This control appliance especially can advantageously show lack, mistake or out of order filter element and described filter entirety can be made if desired out of service.Information can be passed to vehicle or its user in addition.
In addition, the present invention also comprises for this filter element by filter of the present invention, and wherein filter medium is provided with predetermined electric conduction resistance.
Finally, the present invention also particularly relates to this by the purposes of filter of the present invention in the fuel supply system of motor vehicle.
Accompanying drawing explanation
By the schematic diagram of enclosing, described a kind of embodiment by solution of the present invention is explained in detail below.Accompanying drawing illustrates:
Fig. 1 be with the two parts be arranged on wherein filter element, by the vertical section of the filter of prior art;
Fig. 2 is the perspective view of the prefilter of filter element according to Fig. 1;
Fig. 3 is the perspective view of the main filter of filter element according to Fig. 1;
Fig. 4 be with the two parts be arranged on wherein filter element, by the vertical section of the first embodiment of filter of the present invention;
Fig. 5 is the perspective view of the prefilter of filter element according to Fig. 4;
Fig. 6 is the perspective view of the main filter of filter element according to Fig. 4;
Fig. 7 be with the single part be arranged on wherein filter element, by the vertical section of the second embodiment of filter of the present invention; And
Fig. 8 is the perspective view cut open of the filter element according to Fig. 7.
Detailed description of the invention
Figure 1 illustrates a kind of filter 10, this filter is used for filtering the fluid that form is liquid fuel or urea.This filter 10 is provided with columned housing bucket portion 12, and this housing bucket portion closes by housing bottom 14 in downside about Fig. 1.Described housing bucket portion 12 and described housing bottom 14 form filter housings jointly.In described housing bucket portion 12, radially useful in outside on side thereon have the entrance 16 of fluid 18 to be filtered in input and have the outlet 20 for discharging through the fluid 22 filtered at center.
Have the main filter 24 of sleeve-shaped in the inner side in described housing bucket portion 12, should be separated by particle with this main filter from described fluid, to prevent, these particles are such as following causes negative influence on the spraying equipment of internal combustion engine.Described main filter 24 is observed along the direction of its longitudinal axis and is successively mutually provided with main filter end cap 26, the main filter element 28 of open column shape and main filter bottom 30 everywhere.Described main filter element 28 have with plane filter medium form and the particle filtering face arranged in this zigzag, this particle filtering mask has the typical mean pore size being less than 20 μm.In order to radially inwardly and outwards seal the described main filter element 28 be in inside filter 10, the seal 32 in the outside above described main filter end cap 26 has and above the seal 34 of inner side and the seal 36 in the outside below having in described filter bottom 30.
The prefilter 40 surrounding described main filter element 28 be resisted against described above outside seal 32 and described below outside seal 36 on.Described main filter 24 and described prefilter 40 are formed in the filter element 38 of two parts in this case jointly.
Be configured with support component 42, this support component forms lateral circle surface 44 for described prefilter 40 described prefilter 40 open column shape.Described lateral circle surface 44 about Fig. 1 be arranged in downside region be connected to the base section 46 radially stretched out, this base section seals in inner side by seal 48 in described housing bucket portion 12.In the unshowned embodiment of one, save described seal 32 and 48.At this, can advantageously with the seal 36 in the outside below described until described housing bucket portion 12 all seals.In addition, in a kind of embodiment of simplification, can also only make the major part of fluid 18 to be filtered turn to from described entrance 16 towards described prefilter 40, another tributary then directly flows to described main filter 24.
In the plane profile of described lateral circle surface 44, the part as electric firing equipment has heating tape 50(see Fig. 2).Described heating tape 50 is formed by the punching press grid (Stanzgitter) of ring-band shape, and described punching press grid is ejected in described support component 42.At this, two ends of electric contact 52 on described prefilter 40 of working as heating tape contact are stretched.The described electric contact 52 worked as heating tape contact pass from described housing bucket portion 12 and can there from the outside with contact protuberance 54 and carry out electrical contact, to carry electric current to described heating tape 50 and to heat it thus.In the region of described heating tape 50, the optional window 55(that can arrange is see Fig. 2), thus can directly by there being fluid 18 washing-round to be filtered in heating tape, described window 55 place 50.In addition, in the unshowned embodiment of one, the support component 42 of described open column shape for carry out reinforcing and can be provided with vertically center, there its periphery around contact pin.
Described heating tape 50, be so laid in described support component 42, along the longitudinal direction orientation of prefilter 40 endless belt section between, can be selected in the lateral circle surface 44 of described prefilter 40 have lengthwise, equally along its longitudinal direction orientation, equally with the pre-filtering face 56 that filter medium is formed.Described pre-filtering face 56 arranges and is used for blocking micelle (Sulzkerne), flocculation and paraffin, and they can be found at low temperatures in fuel.At this by the place of these materials gear at place, described heating tape 50.Described heating tape 50 is targetedly to there being the particulate (Kern) be so blocked in fluid 18 to be filtered to heat.These particulates dissolve thus and flow to described main filter 24 through described prefilter 40.As an alternative, described support component 42 also can construct when not having pre-filtering face 56, thus it is worked as just firing equipment, but is not work as prefilter.
Described pre-filtering face 56 is configured to independent component according to the prefilter 40 of Fig. 2, and this independent component to be injected on its edge in described support component 42 and to be remained on regularly wherein by position in this way.Each pre-filtering face 56 this by resistance to fuel oil plastics, be especially made up of PA66, or to make with the layer be made up of cellulose (Cellulose) and melt spraying non-woven fabrics (Meltblown).Average pore size is 30 μm to 100 μm.Come to block paraffin at described prefilter 40 place targetedly with this pore size, other particle then can pass therethrough relatively nothing in my way.
In described main filter element 28 in the heart, can be selected in described above the inner side of seal 34 of inner side have the separator 58(of sleeve-shaped see Fig. 1).On described separator 58, thinner and superfine, be included in through filtering fluid 22 in water droplet pool larger water droplet.Described water droplet is separated on the wall body of described separator 58, and the gravity particularly by himself flows to downwards in water collecting chamber 60.Described water droplet can discharge from described filter 10 from there through the discharge outlet 62 on the end be arranged in below described housing bottom 14 when needed.
According to Fig. 4 in the embodiment of 6, in the prefilter 40 of such open column shape, superincumbent on side and edge below constructs circular conductor circuit 64 respectively within it.These conductor circuits 64 preferably as the medial surface of closed conductor circuit around described prefilter 40, and thus about described prefilter 40 centres extend.
Described conductor circuit 64 provides contact surface respectively, described main filter 24 is conformed with the regulations be encased in described filter housings and there prefilter 40 in time be arranged in above attached troops to a unit main filter element 28 fringe region on and contact protuberance 66 on being arranged in below described main filter element 28 fringe region be resisted against on described contact surface.Described contact protuberance 66 sets up the connection of conducting electricity with the filter medium of described main filter core 28, and wherein this filter medium itself conducts electricity and is provided with predetermined resistance.For this reason, especially doped graphite powder in the material of described filter medium, the conductive electric current of graphite powder own.In addition, described conductor circuit 64 and/or the contact surface of described contact protuberance 66 can advantageously be provided with significant contact resistance.Described contact resistance carries out surface treatment to provide by least one contact surface in described contact surface.For this reason, described contact surface is especially provided with special roughness, special flatness, the coating with special electrical conductance or the oxide layer constructed targetedly.Such coating (such as SiN layer or oxide layer) of described contact surface such as can be applied with the thickness that may define by method of spray plating or CVD technique targetedly.The thickness of this layer is such as in 50nm(nanometer) to 500 μm (microns) scope in, be preferably in 100nm in the scope of 10 μm.As the replacement scheme of at least one contact protuberance 66 described, can induction coil be set.
According among the same contact being in conduction with the conductor circuit 64 of described circle on contact area 67 in the heating tape 50 of the embodiment of Fig. 4 to 6 (see Fig. 5), and among the contact being so in conduction or rather, the electric current making to flow through described heating tape 50 is conducted along the path 68 of conduction further by the filter medium of described main filter element 28.
Described heating tape 50 and the firing equipment of attaching troops to a unit thereof are for the part that there is the signalling arrangement that situation identifies to the filter element conformed with the regulations in this way.In other words, described firing equipment and this signalling arrangement form electric construction unit jointly.In addition, this signalling arrangement also comprise as the signal transmission part between described filter housings with described filter element conductor circuit 64 and contact protuberance (Kontaktfahnen) 66.In addition, described signalling arrangement comprises path 68 and the control appliance 70 of described conduction of passing from the filter medium of described main filter element 28.
The path 68 of this conduction such as can be realized by this mode of filter medium applying described main filter 24 with the material that can conduct electricity, such as metal.The embodiment that can consider also has, and the material (such as by admixing carbon fiber, graphite, this mode of metallic particles that can conduct) being configured to by described filter medium inherently can to conduct electricity or the conductor circuit (such as inweave and filter the wire in non-woven fabrics, the anti-counterfeiting line in such as bank note) that can conduct electricity inweave in described filter medium.
Described control appliance 70 comprises circuit logic part 72, described heating tape 50 can be run by described circuit logic part and can especially also identify according to its electrical conductivity and/or inductance according to the resistance of mentioned conducting path (comprising the path 68 of conduction) extraly, the prefilter 40 conformed with the regulations described in whether having installed in described filter 10 and described in the main filter 24 that conforms with the regulations.At this, described circuit logic part 72 especially considers the electric conduction resistance in the electric conduction resistance of described heating tape 50 and the path 68 of described conduction, and preferably also considers in the change running conduction resistance electric described in the process of described filter 10.
Show a kind of embodiment of filter 10 in figures 7 and 8, be wherein made up of the filter element 74 of the one in other words of single part prefilter 40 and main filter 24.Especially save if such seal 32 and 36 of finding out in figures 1 and 4 at this.
On the filter element 74 of this single part, its main filter end cap 26 constructs the conductor circuit 64 of two concentric circles.One of described conductor circuit 64 is radially in outside, and another root conductor circuit 64 is radially in inner side.As signal transmission part, two heating tape contacts with attached troops to a unit contact protuberance 54 52 and these conductor circuit 64 actings in conjunction, described contact protuberance 54 is correspondingly radially in outside and be radially in inner side on the end face in described housing bucket portion 12.On these contact protuberances 54, also can there is the contact surface of significant contact resistance.As the replacement scheme of described contact protuberance 54, also can at least one induction coil be set here.
The heating tape 50 of attaching troops to a unit of described prefilter 40 couples conductively with the conductor circuit 64 of described radial outside on one end in the first contact area 76.Another end of described heating tape 50 couples conductively with the filter medium of described main filter element 28 in the second contact area 78.Described filter medium is provided with again predetermined electric conduction resistance conductively at this.On the 3rd contact area 80 of the radially inner side of described filter medium, described filter medium is then connected conductively with the conductor circuit of radially inner side, between described second contact area 78 and described 3rd contact area 80, wherein produce the path 68 of the conduction of passing from described filter medium thus.
In the embodiment illustrated, described pre-filtering face 56 is not be made up of the material with predetermined electric conduction resistance.But it is possible that corresponding to the path 68 of described conduction, for described prefilter 40 is provided with the path of the conduction of passing from its pre-filtering face 56.
Such as described prefilter can be made up of the plastics that can conduct electricity at least partly, such as, be made up of the PA66 being mixed with carbon fiber, conductive particles (Leitru), graphite, metallic particles or the similar material that can conduct electricity.
Correspondingly, can identify with the control appliance 70 be also connected on contact protuberance 54 and circuit logic part 72 thereof, whether this conducting path between described contact protuberance 54 closes and especially in all running statuses, whether has the resistance determined, the electrical conductivity determined and/or the inductance determined.
Claims (10)
1. the filter (10) for filtering the fluid of fluid, especially motor vehicle, there is filter housings (12,14) and need the filter element (24,40) that is couple on described filter housings, wherein be provided with electric signalling arrangement (64,66,68,70,72) for identifying the situation that exists of the filter element conformed with the regulations, described electric signalling arrangement is configured to the circuit with the resistance determined
The wherein said resistance determined at least is participated in determining by the electric conduction resistance of the filter medium be arranged on described filter element (24,40).
2. by filter according to claim 1,
Wherein said electric signalling arrangement (64,66,68,70,72) has at least one electric signal transmission part (52,64,66) between described filter housings (12,14) and described filter element (24,40), and the wherein said resistance determined at least is participated in determining by the electric transmission resistance of described electric signal transmission part (52,64,66).
3. by filter according to claim 2,
It is circular conductor circuit (64) that described electric signal transmission part (52,64,66) wherein between described filter housings (12,14) and described filter element (24,40) is configured with at least local.
4. by filter according to claim 3,
Wherein said filter element (24,40) is coupled on described filter housings (12,14) by rotary motion, and described at least local is that circular conductor circuit (64) extends with one heart about described rotary motion.
5. by the filter according to any one of claim 1 to 4,
Wherein for there is electric signalling arrangement (64,66,68,70,72) that situation identifies and being jointly assembled into electric construction unit for the water sensor identified the water be blocked in described filter (10) the filter element conformed with the regulations (24,40).
6. by the filter according to any one of claim 1 to 5,
Wherein for the filter element conformed with the regulations (24,40) exist electric signalling arrangement (64,66,68,70,72) that situation identifies with for being jointly assembled into electric construction unit to the firing equipment having fluid to be filtered to heat in described filter (10) (50,52).
7. by the filter according to any one of claim 1 to 6,
Wherein said electric signalling arrangement (64,66,68,70,72) is configured to have the electrical conductivity determined and/or the circuit with the inductance determined.
8. by the filter according to any one of claim 1 to 7,
Wherein said electric signalling arrangement (64,66,68,70,72) is configured to the circuit with circuit logic part (72).
9. for the filter element (24,40) by the filter (10) according to any one of claim 1 to 9,
Wherein filter medium is provided with predetermined electric conduction resistance.
10. by the purposes of the filter (10) according to any one of claim 1 to 9, in the fuel supply system of motor vehicle.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013214622.1A DE102013214622A1 (en) | 2013-07-26 | 2013-07-26 | Filter device with a signal device with a certain resistance |
| DE102013214622.1 | 2013-07-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104338365A true CN104338365A (en) | 2015-02-11 |
Family
ID=52274042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410357556.6A Pending CN104338365A (en) | 2013-07-26 | 2014-07-25 | Filter devcie of signal equipment with determined resistance |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN104338365A (en) |
| DE (1) | DE102013214622A1 (en) |
| IN (1) | IN2014DE01936A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113813676A (en) * | 2021-10-31 | 2021-12-21 | 康硕(江西)智能制造有限公司 | Portable 3D prints and uses ceramic thick liquids filter |
| CN114370683A (en) * | 2021-12-07 | 2022-04-19 | 北京小米移动软件有限公司 | Filtering equipment, filtering assembly, anti-counterfeiting method of filtering assembly and environment adjusting equipment |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015218265B4 (en) * | 2015-09-23 | 2017-11-30 | Robert Bosch Gmbh | liquid filters |
| ITUB20159466A1 (en) * | 2015-12-29 | 2017-06-29 | Ufi Filters Spa | FILTERING CARTRIDGE |
| IT201700070458A1 (en) * | 2017-06-23 | 2018-12-23 | Ufi Innovation Ct Srl | FILTERING CARTRIDGE WITH ELECTRICALLY CONDUCTIVE TAPE |
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| DE10053583A1 (en) * | 2000-01-29 | 2001-08-16 | Daimler Chrysler Ag | Injector |
| US20010029980A1 (en) * | 2000-01-29 | 2001-10-18 | Herbert Guettler | Injection valve |
| US20020144938A1 (en) * | 2001-04-05 | 2002-10-10 | Charles Hawkins | Replaceable-cartridge filter with data transmission feature |
| CN101801495A (en) * | 2007-06-26 | 2010-08-11 | 亨格斯特有限及两合公司 | Fuel filter with filter recognition |
| US20130015109A1 (en) * | 2011-07-16 | 2013-01-17 | Holzmann Mark V | Filter with electrical signature anti-counterfeiting feature |
-
2013
- 2013-07-26 DE DE102013214622.1A patent/DE102013214622A1/en not_active Ceased
-
2014
- 2014-07-10 IN IN1936DE2014 patent/IN2014DE01936A/en unknown
- 2014-07-25 CN CN201410357556.6A patent/CN104338365A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10053583A1 (en) * | 2000-01-29 | 2001-08-16 | Daimler Chrysler Ag | Injector |
| US20010029980A1 (en) * | 2000-01-29 | 2001-10-18 | Herbert Guettler | Injection valve |
| US20020144938A1 (en) * | 2001-04-05 | 2002-10-10 | Charles Hawkins | Replaceable-cartridge filter with data transmission feature |
| CN101801495A (en) * | 2007-06-26 | 2010-08-11 | 亨格斯特有限及两合公司 | Fuel filter with filter recognition |
| US20130015109A1 (en) * | 2011-07-16 | 2013-01-17 | Holzmann Mark V | Filter with electrical signature anti-counterfeiting feature |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113813676A (en) * | 2021-10-31 | 2021-12-21 | 康硕(江西)智能制造有限公司 | Portable 3D prints and uses ceramic thick liquids filter |
| CN114370683A (en) * | 2021-12-07 | 2022-04-19 | 北京小米移动软件有限公司 | Filtering equipment, filtering assembly, anti-counterfeiting method of filtering assembly and environment adjusting equipment |
| CN114370683B (en) * | 2021-12-07 | 2024-02-13 | 北京小米移动软件有限公司 | Filtering equipment, filtering component, anti-counterfeiting method of filtering component and environment adjusting equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| IN2014DE01936A (en) | 2015-07-24 |
| DE102013214622A1 (en) | 2015-01-29 |
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