CN1791455B - Air dryer cartridge - Google Patents
Air dryer cartridge Download PDFInfo
- Publication number
- CN1791455B CN1791455B CN200480013581.7A CN200480013581A CN1791455B CN 1791455 B CN1791455 B CN 1791455B CN 200480013581 A CN200480013581 A CN 200480013581A CN 1791455 B CN1791455 B CN 1791455B
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- China
- Prior art keywords
- filter
- air dryer
- drier
- dehydrating cartridge
- cartridge
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- 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.)
- Expired - Lifetime
Links
- 239000012530 fluid Substances 0.000 claims abstract description 26
- 238000010926 purge Methods 0.000 claims abstract description 20
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 4
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 46
- 239000000463 material Substances 0.000 claims description 41
- 230000008676 import Effects 0.000 claims description 22
- 238000001914 filtration Methods 0.000 claims description 20
- 238000010276 construction Methods 0.000 claims description 12
- 238000013461 design Methods 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 4
- 229920002457 flexible plastic Polymers 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 230000004807 localization Effects 0.000 claims description 2
- 239000002274 desiccant Substances 0.000 abstract description 33
- 239000003921 oil Substances 0.000 description 23
- 239000011159 matrix material Substances 0.000 description 19
- 239000003595 mist Substances 0.000 description 14
- 230000008929 regeneration Effects 0.000 description 10
- 238000011069 regeneration method Methods 0.000 description 10
- 239000000758 substrate Substances 0.000 description 10
- 238000011084 recovery Methods 0.000 description 8
- 230000009467 reduction Effects 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 230000014509 gene expression Effects 0.000 description 7
- 230000000717 retained effect Effects 0.000 description 6
- 238000011109 contamination Methods 0.000 description 5
- 239000013618 particulate matter Substances 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
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- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 206010013786 Dry skin Diseases 0.000 description 1
- 229920001410 Microfiber Polymers 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
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- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
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- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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Images
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- Drying Of Gases (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
An air dryer desiccant cartridge, the cartridge comprising a base having an inlet and an outlet, and a casing connected to the base to define a cavity therebetween, wherein the cavity contains a filter and a desiccant, the filter being arranged upstream of the desiccant such that during normal operation fluid flow entering the cartridge through the inlet passes through the filter and then on to the desiccant before reaching the outlet, and during purging of the cartridge purge flow entering the outlet passes through the desiccant before reaching the filter, wherein further the cartridge includes a valve operable to permit a portion of the purge flow to bypass the filter.
Description
Technical field
The present invention relates to the Vehicular air drier, relate in particular to the dehydrating cartridge of Vehicular air drier.
Background technology
As everyone knows, in the vehicle air system, have air dry-set, hereinafter be called air dryer.Air dry-set places the air source for example in the middle of compressor and the air reservoir usually.Air dryer comprises desiccant material, for example hygroscopic material such as silica gel, it is removed by the moisture in the compressor air supplied, thereby prevents the downstream of described deposit of moisture in the vehicle air system, and As time goes on moisture can damage air system components herein.In order to solve the problem that moisture gathers in desiccant material, the regular scavenging air drier of dry air in the use air reservoir also is discharged in the atmosphere.Drier does not clean usually when compressor free time and air reservoir have obvious demand for dry air and carries out.Desiccant material is provided in the exchangeable reservoir that hereinafter is called tube usually, but it is connected with the air dryer loose-style.Consider that the desiccant material performance descends as time passes, thereby regularly replace this tube.
As everyone knows, compressor institute air supplied comprises the formed mist of very tiny oil droplet.Oil droplet is produced by the reciprocating of lubricating oil by compressor that is present in the compressor.Mist of oil also is deposited in the air reservoir subsequently through air dryer usually, perhaps further is deposited on the downstream of vehicle air system.Though the oil of deposition unlikely damages air system components in the mode identical with moisture by this way, the problem that its deposition can cause narrow passageways in the air system components for example and elastomeric seal to wear out in time.The purpose of this invention is to provide improved air dryer, attempt to prevent that oil is via wherein transmission.
Summary of the invention
According to a first aspect of the invention, the dehydrating cartridge of air dryer is provided, this comprises the pedestal with import and outlet, be connected to pedestal to limit the shell of cavity therebetween, its cavity comprises filter and drier, filter places the drier upstream, make in the process of this tube of normal running, enter the fluid stream of tube through filter by import, the drier of flowing through then, arrive outlet at last, and in the cleaning process of tube, the purge flow that the enters outlet drier of before arriving filter, flowing through, wherein said tube also comprises can operate the valve that makes the part purge flow walk around filter.
Comprise valve and guaranteed in course of normal operation all fluids that enter tube filter of before arriving drier, flowing through, allow the purge flow shunting simultaneously, make the part purge flow filter of directly flowing through in the other direction, and all the other purge flows are walked around filter.
Thereby valve preferably includes and is subjected to drive and the flow through valve module of valve of fluid that prevents in the closed position by the fluid stream that import enters tube.This valve module can be taked the form of flexible unit.In this embodiment, flexible unit can provide the portions of proximal that is fixed on the cartridge unit and distal part movably.In this embodiment, flexible unit can place the tube lower area between filter and the pedestal.In embodiment as an alternative, valve can comprise runner, comprises removable valve module in this runner.
Tube also can comprise the storage tank that links to each other with filter.This storage tank is used for collecting the liquid that removes from the air stream of the introducing that enters tube.Preferably this storage tank is placed near the valve, make and directly take away all liq that is included in the storage tank through the purge flow of valve.
According to a second aspect of the invention, the dehydrating cartridge of air dryer is provided, this comprises pedestal with import and outlet, be connected to pedestal limits the shell of cavity therebetween, its cavity comprises filter, provides the container of drier and the spring of container and filter being pushed to pedestal is set therein, its middle filtrator places in the middle of container and the pedestal, makes that some is passed to pedestal by the power that spring imposes on container and drier by filter at least.
Thus, the invention provides dehydrating cartridge, wherein desiccant container and filter are mutually stacked together, and utilize spring force to determine relative position between relative position between container and the filter and they and the pedestal.
In this embodiment, filter can comprise the construction package that filtering material is installed on it.As selection, filtering material can be installed on the more than one construction package.In preferred embodiments, filter is columniform, comprises the loop configuration assembly that is loaded with the corresponding annular filter material apparatus on it.Preferably radially provide filtering material to introversive this construction package.
Desiccant container can be a substantial cylindrical.In this embodiment, this container can hold the annular space of filter to small part.This container can comprise that diameter is less than the first of annular space diameter and the diameter second portion greater than the annular space diameter.In this embodiment, the transition portion between container first and second parts can limit the base that holds filter.
According to a third aspect of the invention we, the base assembly of dehydrating cartridge is provided, this base assembly comprises that design holds the top of dehydrating cartridge filter and be suitable for leaning against bottom on the dehydrating cartridge pedestal, and described bottom also comprises runner and can operate the blocking device that opens and closes described runner.
In preferred embodiments, base assembly top provides to design and holds the also base of supporting filter.This base can provide one or more attachment, and when work, these attachment are used for respect to the base assembly localization filter.Attachment can comprise one or more projections.Aforementioned projection can be taked the form of one or more spring clips (sprung finger).In addition, this base can be contoured.
Described runner can limit by the interruption of base assembly bottom.Blocking device can comprise the flexible unit of crossing over described interruption.This flexible unit can adopt the lateral margin (skirt) or timber (rib) form of flexible plastic material.The bottom can provide a plurality of runners.In this embodiment, runner can limit by a plurality of interruptions.In embodiment as an alternative, the bottom can provide a plurality of runners, and when work, these runners lean against on the pedestal of dehydrating cartridge, and wherein runner is limited between the described runners.Base assembly can provide one or more attachment, and these attachment connect one or more parts of dehydrating cartridge pedestal when work.
Base assembly can preferably be made by plastic material by the injection moulding operation.Advantageously, flexible timber or lateral margin can with the base assembly coforming.
According to a forth aspect of the invention, filter assembly is provided, it is fit to be installed between dehydrating cartridge and the air dryer housing, filter assembly comprise have import, the main body of outlet and be positioned at the main body import and the outlet in the middle of filter, described main body also provides the seal in import and exit, thereby when making work, filter can be connected between dehydrating cartridge and the air dryer housing in a fluid tight manner.
Above-mentioned filter assembly provides individual components, and described parts can randomly be incorporated in the air dryer systems, to allow filtering the fluid of introducing before the drier of described fluid arrival air dryer cartridge.In the course of normal operation of filter assembly and tube, the fluid stream that enters filter assembly by import arrives tube through outlet then through filter.In the cleaning process of tube and filter assembly, the purge flow that the enters outlet filter of flowing through before by import outflow filter sub-assembly.Advantageously, this filter plays the effect that removes particulate matter, mist of oil and moisture from the air of introducing.
In preferred embodiments, filter assembly provides storage tank, and the liquid that removes from fluid stream by filter can enter wherein.Advantageously, filter assembly also comprises and can operate the valve that allows a part of purge flow to walk around filter.
Comprise valve and guaranteed in course of normal operation all fluids that enter filter assembly filter of before arriving drier, flowing through, allow the purge flow shunting simultaneously, make the part purge flow filter of directly flowing through in the other direction, and all the other purge flows are walked around filter.
Valve preferably includes and is subjected to drive and thereby the fluid flow that prevents in the closed position is crossed the valve module of valve through the fluid of import inflow filter sub-assembly stream.This valve can comprise runner, comprises movably valve module in this runner.
Description of drawings
Now with reference to accompanying drawing embodiment of the present invention are described, wherein:
Fig. 1 illustrates the cross-sectional side view according to air dryer cartridge of the present invention;
Fig. 2 a illustrates the partial cross section figure of the base assembly of tube among Fig. 1;
Fig. 2 b illustrates the partial cross section figure that substitutes base assembly;
Fig. 3 illustrates the cross section partial enlarged drawing of the bottom of tube among Fig. 1;
Fig. 4 illustrates another cross section partial enlarged drawing of the bottom of tube among Fig. 1;
Fig. 5 illustrates the partial cross section figure of the air dryer cartridge of the alternate embodiment according to the present invention;
Fig. 6 a illustrates the side view of the valve of air dryer cartridge among Fig. 5;
Fig. 6 b illustrates the perspective view of the base of valve among Fig. 6 a;
Fig. 7 and 8 illustrates the cross-sectional side view of filter assembly according to a further aspect of the invention;
Fig. 9 illustrates the schematic side-view according to another embodiment of air dryer cartridge of the present invention.
The specific embodiment
At first with reference to Fig. 1, Fig. 1 illustrates the viewgraph of cross-section of dehydrating cartridge, and described tube is constructed according to the invention, generally with 10 expressions.Tube 10 comprises base assembly 12, shell 14 and inner cover 16.Base assembly 12 provides the centre bore 18 that is surrounded by a plurality of via holes (secondary aperture) 20.Centre bore 18 is threaded, so that tube 10 is done as a whole can the assembling with screw thread with the complementary threads cock of air dryer housing.Base assembly 12 also provides the ring sealing base 22 that carries elastomeric seal 24.Seal 24 is guaranteed tube 10 and air dryer housing seal assembling when work.
In inner cover 16, desiccant matrix 26 is provided, this desiccant matrix 26 comprises hygroscopic material such as silica gel particle.Inner cover 16 comprises the perforated base 28 with upstanding wall 30.Between the perforated base 28 of base assembly 12 and inner cover 16, provide O RunddichtringO 31, be communicated with to prevent any fluid therebetween.As shown in fig. 1, described wall is stair-stepping, thereby inner cover 16 provides the bottom 32 of diameter less than the diameter on top 34.Provide bottom 32 than minor diameter to make and between bottom 32 and shell 14, limit annular space 36, annular filter 38 wherein is provided in annular space 36.Filter 38 provides the upper end 40 that is included in the seal 42 and is included in lower end 46 in the seal 48 equally, and wherein seal 42 leans against on the ladder 44 in the cover 26, and seal 48 leans against on the base assembly 50.The tube 10 also provide the lid with holes 52 in the top 34 that is included in inner cover 16 and place cover 52 and shell 14 between spring 54.Spring 54 is included in and covers in 52 the base with suitable shape 56, and leans against on the packing ring 55.
Fig. 2 b represents alternative base assembly, usually with 51 expressions.Discern with identical Reference numeral with the parts that base assembly is identical among Fig. 2 a.The difference of base assembly 51 is that it provides a plurality of and stretches out and point to inner projection 61 (one of them only is shown) from wall 60.Projection 61 comprises barb 63, and when work, barb 63 engages with the base member 12 of tube 10 by the edge that clamps via hole 20.Projection 61 and via hole 20 are bonded with each other and prevent that base assembly 51 is owing to its cross section pressure reduction causes possibility with respect to base member 12 axially-movables.Prevent that axially-movable from having reduced the possibility that black box moves to timber 66 belows.Base assembly 51 is shown with stylus pin 62, but these optional can omissions.
When work, tube 10 is connected to the main body (not shown) of air dry-set, and feasible humid air of introducing from compressor (with arrow 84 expressions) and mist of oil (with arrow 86 expressions) are by via hole 20 introducing tubes 10.Humid air and mist of oil are straight by arriving filter 38 between substrate 28 and the inner cover 16.When flowing through filtering material 78, most mist of oils are removed from air stream.Filtering material 78 is used for forming by cohesion the single droplet of mist of oil, makes it to form big the dripping that the air-flow of filtering material 78 takes away of can not being flowed through.These big drops otherwise be retained on the filtering material 78 or near, or shown in arrow 86, from filtering material 78, drain into be limited between a pedestal 12, base assembly 50 and the shell 14 around in the storage tank 88.Advantageously, filtering material 78 also is used for removing the airborne part moisture that is included in introducing in similar cohesion mode.As mist of oil, the cohesion of the airborne water droplet of introducing also is retained in the filtering material 78 or is discharged in the storage tank 88.
Fig. 3 amplifies the bottom that tube 10 is shown in detail, comprises the black box 72 of base assembly 50.During humid air and mist of oil normal flow process filter 38, on the cross section of filter 38, there is pressure reduction.Fluid sealing shown in the sealed assembly 72 of this pressure reduction is used to provide between pedestal 12 and base assembly 50 bottom surfaces.Humid air that the sealing of this fluid guaranteed all introducings and the mist of oil filter 38 of all must flowing through is provided.
Flow through after the filter 38, the air of introducing and residual moisture thereof make progress straight through between the inwall and inner cover 16 of shell 14, the desiccant matrix 26 of flowing through downwards then, and moisture was removed and was formed the material retention of desiccant matrix 26 this moment.When the further cohesion of moisture can occur in air and flows through between the inwall of shell 14 and the inner cover 16 in the air.Subsequently, the air of clean dry is flowed through as the flannelette pad 105 of inner cover 16 substrate linings and the centre bore 18 of tube 10, arrives the main body of air dry-set, and continues to arrive forward the air reservoir (not shown).
As described in above-mentioned foreword paragraph, the desiccant material of tube 10 needs regularly to use dry air regeneration, loses efficacy to prevent it from becoming water saturation.The direction of regenerative dry air stream of tube of flowing through is opposite with the direction of humid air and mist of oil, and illustrates with arrow 90.Dry regeneration air in the air reservoir enters tube 10 by centre bore 18, enters inner cover 16 then and flows through flannelette pad 105 and desiccant matrix 26.The humid air that obtains like this leaves inner cover 16 by covering 52, and flows through between inner cover 16 and shell 14, arrives filter 38.As described below, at this place, recovery stream is shunted, and makes its part filter 38 of flowing through, and remainder is walked around filter 38 and be used for removing all oil and the water that is present in storage tank 88.
Fig. 4 is shown specifically the bottom of tube 10 during the recovery stream in the amplification mode, comprises the black box 72 of supporting component 50.The partial regeneration stream 90 that arrives black box 72 makes assembly 72 upward deflect and leave pedestal 12.Therefore recovery stream 90 black box 72 of can flowing through is taken away all liq in the storage tank 88, simultaneously shown in arrow 92.Recovery stream 90 and the liquid 92 that is pulled away leave tube 10 by via hole 20 and are discharged in the atmosphere.The partial regeneration stream 90 of filter 38 of flowing through is taken away and is filtered all liq and all particulates matter that material 78 is retained, and similarly is discharged in the atmosphere by via hole 20.As shown in Figure 4, the splitter section of recovery stream 90 reassembled before the via hole 20 of flowing through mutually.
Referring now to Fig. 5, show alternate embodiment, usually with 110 expressions according to the dehydrating cartridge of the air dryer of one aspect of the invention.Tube 110 comprises pedestal 112, connects shell 114 by seal receptacle 116 on pedestal.In the illustrated embodiment, seal receptacle 116 is connected with pedestal 112 by a plurality of stylus pins 118 (one of them only is shown) are provided, and stylus pin 118 is contained in the corresponding through hole 120 of pedestal 112.In order to make shell 114 keep being connected with pedestal 112, the edge 122 of shell 114 is contained in the recess 124 on every side of seal receptacle 116, thereby with the described recess 124 curling shells 114 that clamp.Seal receptacle 116 also is used for supporting and fixing seal assembly 126, and when work, black box 126 is guaranteed to form airtight sealing between tube 110 and the dry housing (not shown) of air.
Tube 110 also provides filter assembly, with 152 expressions, is positioned shell 114 inside between pedestal 112 and the supporting component 132 usually.Sub-assembly 152 comprises the lower support ring 156 and the filter upper support ring 157 of filter cell 154, filter cell.Filter cell 154 and support ring 156,157 are divided into corresponding first and second parts 158,160 with inlet plenum 146.Black box 162,164 is provided, thereby prevents that fluid stream from passing the interface that forms between sub-assembly 152, supporting component 132 and the shell 114.Support ring 156 also provides the storage tank 166 of the second portion 160 that is positioned at inlet plenum 146.Storage tank 166 comprises draining valve 168, and under some condition of work, the liquid that draining valve 168 allows to be collected in the storage tank 166 is discharged in the first 158 of inlet plenum 146.
Advantageously, tube 110 provides pressure relief device, can be used for the situation of filter cell 154 lockings.Black box 162 between sub-assembly 152 and the supporting component 132 goes for surpassing under the situation of predetermined value at section pressure reduction, loses efficacy with controlled manner.As an alternative, can design supporting component 132 makes its effect of revolting spring 128, leaves filter cell 154, to define runner betwixt.
Fig. 6 a and 6b illustrate draining valve 168 in further detail.Valve 168 comprise with the import 170 of storage tank 166 fluid communication and with the outlet 172 of first's 158 fluid communication of inlet plenum 146.In import 170 with export between 172, the valve chamber 174 that comprises valve module 176 is provided, in the illustrated embodiment, it is spherical that valve module 176 is essentially.Valve chamber also provide around the base 178 of the valve module 176 of import 170 and with outlet 172 adjacent a plurality of bypass channels 180.Valve module 176 is vertically removable in valve chamber 174, shown in arrow 182.A plurality of castellation structures 173 are provided near the outlet 172, to guarantee that outlet can be by valve module 176 lockings.In the illustrated embodiment, the pedestal 112 with tube 110 is vertical basically for valve chamber 174.Should be appreciated that, arrange like this to make have the greatest impact of gravity, and further promote the emptying of compressor idle period of time storage tank 166 for valve module 176.Should be appreciated that in embodiment as an alternative, valve chamber 176 can tilt.
The operating condition of tube 110 will be described now.When work, should be appreciated that tube 110 is connected to the air dryer housing.Described connection assigns to realize by the threaded portion that the pedestal 112 that is suitable for holding the corresponding threaded section of air dryer housing is provided usually.Along with the air system compressor loads, humidity and contaminated air and mist of oil pass hole 120 is fed to inlet plenum 146 by way of pedestal first 158.Humid air and the mist of oil filter cell 154 of flowing through subsequently arrives the second portion 160 of inlet plenum 146.Because the pressure difference retaining valve assembly 176 on valve 168 sections is near base 178 and therefore close import 170, thereby prevent the air draining valve 168 of flowing through.Be contained in that air in the second portion 160 of inlet plenum 146 is flowed through circular passage 148 subsequently and the superjacent air space 150 that arrives desiccant matrix 130.Then, the air desiccant matrix 130 of flowing through herein, is removed the moisture of wherein carrying secretly.Dry air leaves tube 110 by passage 138 and hole 140 subsequently.
Should be appreciated that, be contained in inlet plenum 146 firsts 158 from the air of compressor by water saturation, and be compressed machine oil and particulate matter such as contamination by dust.Design filter cell 154 makes it the most of at least mist of oil of cohesion so that it can be discharged in the storage tank 166, and prevents that particulate matter from passing.As mentioned above, compare with first embodiment, filter cell 154 also is used to condense the airborne moisture that a part is included in introducing.The water and the oil of cohesion are deposited in the filter cell 154 at first, can be discharged in the storage tank 166 subsequently.Because further cohesion can take place in the air cooling in circular passage 148.All these condensation products can both be discharged in the storage tank 166 along shell 114 inwalls.
As mentioned above, the You Heshui of cohesion is retained in the storage tank 166, and draining valve 168 cuts out simultaneously.When section pressure reduction was impartial or reverse, draining valve 168 was set to open.During when the compressor free time and therefore no longer to inlet plenum 146 supply air, pressure reduction can be impartial.Remove the power of valve member 176 that forces, thereby allow valve module 176 under the gravity effect, to move towards valve outlet port 172 near base 178.Subsequently, be retained in liquid in the storage tank 166 valve chamber 174 of can flowing through, arrive outlet 172 by bypass channel 180.Annular row water channel 184 is provided in the pedestal 112, through hole 120 fluid communication of this drainage and pedestal 112.
In the regenerative process of desiccant matrix 130, when dry air refluxes by tube 110, the reverse of pressure reduction on valve 168 sections takes place.Valve module 176 is passing through motion in the above described manner under the influence of 170 applied pressures of valve import.Should be appreciated that, be collected in all liq in the storage tank 166 and be forced through valve 168 and enter drainage 184, and flow out tube 110 by hole 120 subsequently.Valve design 168 be so that not every dry air can both therefrom pass, the filter 154 thereby the part dry air must be flowed through.As mentioned above, this takes away water and the oil that is deposited in the filter 154, is discharged in the atmosphere subsequently.
Referring now to Fig. 7 and 8, another embodiment of the present invention is shown.Discern with corresponding Reference numeral with parts identical in the embodiment of the present invention shown in Fig. 5-6b.The different contamination filter sub-assemblies 152 that are of Fig. 7 and 8 embodiment are provided in the independent case 186, and independent case 186 places air dryer 188 and comprises between the tube 190 of drier.Housing 186 comprises filter cell 154, storage tank 166, draining valve 168, and further limits two parts 158,160 of inlet plenum 146.Filter cell 154 is retained in the housing by top board 187.In the illustrated embodiment, the chucking power between tube 190 and the air dryer 188 is by the outer wall transmission of housing 186.Should be appreciated that in embodiment as an alternative, this power can be transmitted by top board 187 and filter cell 154.In this embodiment, filter cell 154 is strengthened, thereby can adapt to through the power of its transmission and can not be out of shape or structural failure.Therefore, filter cell 154 can the mode similar to embodiment shown in Figure 1 be constructed, and comprises one or more construction packages that filtering material is installed thereon that is:.Housing 186 is annular, has centre bore, and when work, the hollow projection 192 of main body 188 passes described centre bore.Projection 192 provides threaded end 194, is suitable for threaded section 196 close fit with corresponding tube pedestal 112.
When work, housing 186 is clipped between tube 190 and the main body 188.Sealing ring 126,198,200,202 is provided, thereby guarantees the inclusion seal between each parts 186,188,190.Draining valve 168 has the design similar to the draining valve of embodiment shown in Fig. 5-6b, that is: valve module, thereby this assembly can utilize section pressure reduction to move valve-off 168 therebetween in the normal inflow of air with by tube 190, and can utilize gravity when compressor is idle or utilize the recovery stream by tube 190 to move to open valve.
In when work, enter the first 158 of inlet plenum 146 from the air of compressor by the port 204 of air dryer 188, shown in arrow 206.Then, the compressed air filter element 154 of flowing through arrives the second portion 160 of inlet plenum 146.As previously mentioned, oil and the water that is filtered device element 154 cohesion can be discharged in the storage tank 166 of second portion 160 bottoms.The compressed air import 120 of flowing through subsequently enters tube 190, herein, and compressed air agent 130 dryings that are dried in a conventional manner.Storage tank 166 utilizes gravity drainage in stop supplies during from the air of compressor, perhaps utilizes by tube 190 and comes draining with the dry air reverse flow of regeneration drier.Second kind of situation described in Fig. 8 by arrow 208.Liquid from storage tank 166 is delivered to port 204, and the outlet (not shown) by air dryer 188 is discharged in the atmosphere then.As previously mentioned, the recovery stream of dry air is shunted between filter cell 154 and draining valve 168.The flow through that part of all liq or the particulate matter of taking away in the material that is deposited in filter cell 154 of filter cell 154.That part of recovery stream of draining valve 168 of flowing through is taken away all liq that is deposited in the storage tank 166.
Fig. 7 and 8 filter assembly 152 can be used in combination with the filter of the tube that comprises the described form of Fig. 1-6b, further to remove liquid and chip.As an alternative, filter assembly 152 can be used in combination with the conventional cartridge that only comprises desiccant material.
Referring now to Fig. 9, dehydrating cartridge according to another embodiment of the invention is shown, usually with 210 expressions.Tube 210 comprises pedestal 212 and shell 214, and limits cavity 216 betwixt.Desiccant matrix 218 and contamination filter sub-assembly 220 place in the cavity 216.Sub-assembly 220 comprises first filter bed 222, second filter bed 224, storage tank 226, drainage 228 and draining valve 230.Tube 210 also comprises check-valves 232, desiccant regeneration exhaust duct 234 and the desiccant regeneration air bleeding valve 236 that places desiccant matrix 218 and contamination filter sub-assembly 220 centres.
In when work, be delivered to tube 210 in a conventional manner from the air of compressor, shown in arrow 240.Described air is flowed through and is defined in circular passage 238 between desiccant matrix 218/ contamination filter sub-assembly 220 and the shell 214, arrives cavity 216 tops, the filter bed 222,224 of flowing through in succession then.Should be noted that check-valves 223 is provided between the bed 222,224.Oil that discharges from the air of introducing and deposit of moisture are in storage tank 226.The air desiccant matrix 218 of flowing through is further removed moisture herein then.The air of substantially dry leaves tube 210 by the outlet in the pedestal 212 242 subsequently.
The regeneration airflow of process tube 210 is shown in arrow 244.Enter tube 210 from the dry air of air reservoir by exporting 242, and the desiccant matrix 218 of flowing through, be deposited in wherein moisture with release.The major part of gained humid air enters regeneration exhaust duct 234 and drains into circular passage 238 by air bleeding valve 236.The moist regeneration air of a part enters storage tank 226 by check-valves 232, and therefore forces all liq that resides in wherein by drainage 228 and draining valve 230, arrives circular passage 238.Then, shown in arrow 246, humid air and be discharged in the atmosphere from all moisture of storage tank 226 outlet by the air dryer (not shown).
Claims (38)
1. the dehydrating cartridge of air dryer, this comprises the pedestal with import and outlet and is connected to pedestal to limit the shell of cavity therebetween, its cavity comprises filter and drier, filter places the drier upstream, make in course of normal operation, enter the fluid stream filter of flowing through of tube by import, pass through drier then, arrive outlet at last, and make in the cleaning process of tube, the purge flow that the enters outlet drier of before arriving filter, flowing through, it is characterized in that described tube also comprises can operate so that the part purge flow is walked around the valve of filter, and described valve comprises valve module, and described valve module is subjected to enter the driving of fluid stream of tube and in the closed position by import, thereby prevent that fluid from flowing through valve, wherein said valve module is taked the form of flexible unit.
2. the dehydrating cartridge of the air dryer of claim 1, wherein said flexible unit provide the portions of proximal that is fixed on the cartridge unit and distal part movably.
3. the dehydrating cartridge of claim 1 or 2 air dryer, the lower area of the tube of wherein said flexible unit between filter and pedestal.
4. the dehydrating cartridge of the air dryer of claim 1, wherein said tube also comprises the storage tank that links to each other with filter.
5. the dehydrating cartridge of the air dryer of claim 4, wherein said storage tank is positioned near the valve, makes directly the flow through purge flow of valve take away any liquid that is included in the storage tank.
6. the dehydrating cartridge of the air dryer of claim 1, this comprises container and the spring that is provided with drier within it, described spring is set to push the container and the filter of drier to pedestal, wherein said filter bits is in the centre of the container and the pedestal of drier, makes to impose on the container of drier and the power of drier is passed to pedestal by filter by spring.
7. the dehydrating cartridge of the air dryer of claim 6, wherein said filter comprises the construction package that filtering material is installed thereon.
8. the dehydrating cartridge of the air dryer of claim 7, wherein said filter is columniform, and is included in the loop configuration assembly that is loaded with the corresponding annular filter material apparatus on it.
9. the dehydrating cartridge of the air dryer of claim 8 wherein radially upcountry provides filtering material to construction package.
10. the dehydrating cartridge of the air dryer of claim 8 wherein radially outwards provides filtering material to construction package.
11. the dehydrating cartridge of any one air dryer among the claim 8-10, wherein said filter comprises a plurality of construction packages.
12. the dehydrating cartridge of the air dryer of claim 8, the container of wherein said drier roughly are columniform.
13. the dehydrating cartridge of the air dryer of claim 12, the container of wherein said drier is at least partially housed in the annulus of filter.
14. the dehydrating cartridge of the air dryer of claim 12 or 13, the container of wherein said drier comprise diameter less than the first of annulus diameter and the diameter second portion greater than the annulus diameter.
15. the dehydrating cartridge of the air dryer of claim 14, the transition portion between first and second parts of the container of wherein said drier limits the base that is used for holding filter.
16. the dehydrating cartridge of the air dryer of claim 1, wherein said tube comprise that base assembly, this base assembly comprise top and the bottom that is suitable for leaning against on the pedestal that filter is held in design, described bottom also comprises the flexible unit of runner and described valve.
17. the dehydrating cartridge of the air dryer of claim 16, the top of wherein said base assembly provide, and design is held and the base of supporting filter.
18. the dehydrating cartridge of the air dryer of claim 17, wherein said base provides one or more attachment, and when work, these attachment are used for respect to the base assembly localization filter.
19. the dehydrating cartridge of the air dryer of claim 18, wherein said attachment comprise one or more projections.
20. the dehydrating cartridge of the air dryer of claim 19, wherein said projection is taked the form of one or more spring clips.
21. the dehydrating cartridge of any one air dryer among the claim 16-20, wherein said runner is limited by the interruption of base assembly bottom.
22. the dehydrating cartridge of any one air dryer among the claim 16-20, wherein said flexible unit adopts the lateral margin of flexible plastic material or the form of timber.
23. the dehydrating cartridge of any one air dryer among the claim 16-20, wherein said bottom provides a plurality of runners.
24. the dehydrating cartridge of the air dryer of claim 23, wherein said runner is limited by a plurality of interruptions.
25. the dehydrating cartridge of the air dryer of claim 23, wherein said bottom provides a plurality of runners, and when work, these runners lean against on the pedestal of dehydrating cartridge, and wherein runner is limited between the described runners.
26. the dehydrating cartridge of air dryer, this comprises the pedestal with import and outlet and is connected to pedestal to limit the shell of cavity therebetween, its cavity comprises filter and drier, filter places the drier upstream, make in course of normal operation, enter the fluid stream filter of flowing through of tube by import, pass through drier then, arrive outlet at last, and make in the cleaning process of tube, the purge flow that the enters outlet drier of before arriving filter, flowing through, it is characterized in that described tube also comprises can operate so that the part purge flow is walked around the valve of filter, and described valve comprises valve module, and described valve module is subjected to enter the driving of fluid stream of tube and in the closed position by import, thereby prevent that fluid from flowing through described valve, described valve comprises the runner that wherein contains removable valve module.
27. the dehydrating cartridge of the air dryer of claim 26, wherein said tube also comprises the storage tank that links to each other with filter.
28. the dehydrating cartridge of the air dryer of claim 27, wherein said storage tank is positioned near the valve, and the purge flow of the feasible valve of directly flowing through is taken away any liquid that is included in the storage tank.
29. the dehydrating cartridge of the air dryer of claim 26, this comprises container and the spring that is provided with drier within it, described spring is set to push the container and the filter of drier to pedestal, wherein said filter bits is in the centre of the container and the pedestal of drier, makes to impose on the container of drier and the power of drier is passed to pedestal by filter by spring.
30. the dehydrating cartridge of the air dryer of claim 29, wherein said filter comprises the construction package that filtering material is installed thereon.
31. the dehydrating cartridge of the air dryer of claim 30, wherein said filter is columniform, and is included in the loop configuration assembly that is loaded with the corresponding annular filter material apparatus on it.
32. the dehydrating cartridge of the air dryer of claim 31 wherein radially upcountry provides filtering material to construction package.
33. the dehydrating cartridge of the air dryer of claim 31 wherein radially outwards provides filtering material to construction package.
34. the dehydrating cartridge of any one air dryer among the claim 31-33, wherein said filter comprises a plurality of construction packages.
35. the dehydrating cartridge of the air dryer of claim 31, the container of wherein said drier roughly are columniform.
36. the dehydrating cartridge of the air dryer of claim 35, the container of wherein said drier is at least partially housed in the annulus of filter.
37. the dehydrating cartridge of the air dryer of claim 35 or 36, the container of wherein said drier comprise diameter less than the first of annulus diameter and the diameter second portion greater than the annulus diameter.
38. the dehydrating cartridge of the air dryer of claim 37, the transition portion between first and second parts of the container of wherein said drier limits the base that is used for holding filter.
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0311471.7 | 2003-05-19 | ||
| GB0311471A GB0311471D0 (en) | 2003-05-19 | 2003-05-19 | Air dryer cartridge |
| GB0314829A GB0314829D0 (en) | 2003-05-19 | 2003-06-25 | Air dryer cartridge |
| GB0314829.3 | 2003-06-25 | ||
| DE10342871.2 | 2003-09-15 | ||
| DE10342871 | 2003-09-15 | ||
| PCT/GB2004/002129 WO2004103509A2 (en) | 2003-05-19 | 2004-05-19 | Air dryer cartridge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1791455A CN1791455A (en) | 2006-06-21 |
| CN1791455B true CN1791455B (en) | 2010-07-14 |
Family
ID=9958351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200480013581.7A Expired - Lifetime CN1791455B (en) | 2003-05-19 | 2004-05-19 | Air dryer cartridge |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1791455B (en) |
| GB (2) | GB0311471D0 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009030897B4 (en) * | 2009-06-29 | 2015-02-26 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Air dryer cartridge for a compressed air treatment plant of a vehicle and compressed air treatment plant for a vehicle with a corresponding air dryer cartridge. |
| DE102010011956A1 (en) * | 2010-03-18 | 2011-09-22 | Mann + Hummel Gmbh | Air dryer, in particular in a compressed air system in a commercial vehicle |
| DE102011116520A1 (en) * | 2011-10-20 | 2013-04-25 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Air filter cartridge for compressed air preparation for a compressed air treatment plant |
| CN104728966A (en) * | 2013-12-23 | 2015-06-24 | 上海华博信息服务有限公司 | Sleeping cabin capable of adjusting environmental parameters automatically |
| DE102015117283A1 (en) * | 2015-10-09 | 2017-04-13 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Desiccant cartridge with improved drying and regeneration |
| DE102015122169A1 (en) * | 2015-12-18 | 2017-06-22 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Air dryer cartridge |
| US20190351362A1 (en) * | 2016-12-05 | 2019-11-21 | Volvo Truck Corporation | An air processing assembly comprising a ptfe based oleophobic membrane and method for drying compressed air for a vehicle |
| DE102019122031A1 (en) * | 2018-09-11 | 2020-03-12 | Mann+Hummel Gmbh | Drying system, dryer cartridge and use of a dryer cartridge |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5286283A (en) * | 1993-05-17 | 1994-02-15 | Alliedsignal Inc. | Air dryer for compressed air system having a serviceable oil filter |
| EP1048541A1 (en) * | 1999-04-28 | 2000-11-02 | Baldwin Filters, Inc. | Air desiccant canister |
-
2003
- 2003-05-19 GB GB0311471A patent/GB0311471D0/en not_active Ceased
- 2003-06-25 GB GB0314829A patent/GB0314829D0/en not_active Ceased
-
2004
- 2004-05-19 CN CN200480013581.7A patent/CN1791455B/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5286283A (en) * | 1993-05-17 | 1994-02-15 | Alliedsignal Inc. | Air dryer for compressed air system having a serviceable oil filter |
| EP1048541A1 (en) * | 1999-04-28 | 2000-11-02 | Baldwin Filters, Inc. | Air desiccant canister |
Also Published As
| Publication number | Publication date |
|---|---|
| GB0314829D0 (en) | 2003-07-30 |
| GB0311471D0 (en) | 2003-06-25 |
| CN1791455A (en) | 2006-06-21 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: WOBLANCO CO., LTD. Free format text: FORMER OWNER: WABCO AUTOMOTIVE UK LTD; APPLICANT Effective date: 20061201 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20061201 Address after: Hannover Applicant after: WABCO Co.,Ltd. Address before: British Liz Applicant before: WABCO Automotive (UK) Ltd. Co-applicant before: Mann Hummel Co.,Ltd. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20180925 Address after: Brussels Patentee after: WABCO EUROPE BVBA Address before: Hannover Patentee before: Wabco GmbH & Co. OHG |
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| CX01 | Expiry of patent term |
Granted publication date: 20100714 |