CN1327937C - Spin-on dessicant cartridge with integral oil removal filter - Google Patents
Spin-on dessicant cartridge with integral oil removal filter Download PDFInfo
- Publication number
- CN1327937C CN1327937C CN 03817560 CN03817560A CN1327937C CN 1327937 C CN1327937 C CN 1327937C CN 03817560 CN03817560 CN 03817560 CN 03817560 A CN03817560 A CN 03817560A CN 1327937 C CN1327937 C CN 1327937C
- Authority
- CN
- China
- Prior art keywords
- air dryer
- dryer assembly
- coalescent
- air
- oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/002—Air treatment devices
- B60T17/004—Draining and drying devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/003—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions including coalescing means for the separation of liquid
- B01D46/0031—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions including coalescing means for the separation of liquid with collecting, draining means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/261—Drying gases or vapours by adsorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0407—Constructional details of adsorbing systems
- B01D53/0415—Beds in cartridges
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Drying Of Gases (AREA)
- Compressor (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
An air dryer assembly for removing moisture and oil from a compressed air system includes a desiccant material received in a shell for adsorbing moisture as compressed air passes therethrough. A coalescing element is disposed between an inlet and outlet for removing oil aerosols from the compressed air. A check valve is disposed in parallel with the coalescing element and forces the compressed air to pass through the coalescing element as air flows from the inlet to the outlet. During a purge or reverse flow, compressed air bypasses the coalescing element and removes oil collected in the cartridge through the inlet.
Description
Background of invention
The present invention relates to a kind of compressed air system, relate more specifically to a kind of air dryer assembly that is used for compressed air system of removing wet G﹠O.The present invention is specially adapted to adopt compressed air optionally to control the vehicle compressor system that applies of car brakeing, and other pneumatic system relevant with vehicle.
Compressed air system is used in traditional brakes, for example provides and remain in the air under the pressure, so that operation vehicle braked system and auxiliary air system.Water in the compressed air system, particle and oil all may cause component capabilities to descend, and can hinder the optimum operation of system.Therefore, in system, be combined with air dryer usually, so that from compressed air, remove moisture.The air system pollutant of these solids, liquid and steam form was collected and removed to air dryer before pollutant enters into system.Air dryer is the dry air of the component feed cleaning of brakes, thereby has improved the life-span of system and reduced maintenance cost.
For bearing and other parts of lubricate compressors, the air damping compressor obtains fuel feeding usually from vehicle motor.As is understood, it is very difficult preserving oil in compressor, and oil can be mixed in the compressed air stream that leaves compressor every now and then.Modern air dryer has used desiccant material, and it can absorb steam when steam passes from compressor to the air line that stores up cylinder or components downstream.Oil can have a negative impact to the work and the efficient of drier, and therefore to reduce oily pollution to drier be very important for filter element by using effectively oil removing or oil filter.
In addition, commercially available dry formulation air dryer provides the structure that allows to change desiccant material.It is necessary that the periodicity of desiccant material is changed, and this is that desiccant material can be covered by the wet goods pollutant because in use, and this finally can reduce its steam retention performance.Because other parts of air dryer have long service life, therefore wish to be useful on the system that makes things convenient for that optionally changes desiccant material.For example, the dry filter cylinder of centrifugal (spin-on) dry formulation air is similar to the spin-on oil filter of the filter tank form of conventional motor vehicle.Load plate has center screw, makes the whole cartridge unit of ventilating to be screwed on the upright turnbuckle that extends out from the vehicle installed surface.
Oil coalescent (oil coalescing element) can be removed the most of vaporific oil and the fluid oil that enter into spin-on desiccant cartridge.Regrettably, Known designs does not solve the problem of removing the oil of being assembled in the filter cylinder fully.For example, purify the streaming system steering current along opposite direction or to flowing through oily coalescent, so that from drier, remove the oil that is mingled with returning.Yet clumsy design may cause desiccant leakage, reduces the oil mass of removing in the filter cylinder, thereby causes the life-span of drier to descend, and finally can cause negative effect to the performance of compressed air system.
Like this, have a kind of lasting demand in the art, the drier of promptly eliminating effectively in the air dryer assembly of compressed air system pollutes, and removes pollutant from dryer basket, and preserves drier.
Brief summary of the invention
The invention provides a kind of air dryer assembly that is used for removing from compressed air system the improvement of wet G﹠O, it can satisfy above-mentioned and other demand in simple and economic mode.
More particularly, one exemplary embodiment of the present invention comprise the desiccant material that is contained in the housing, and it can remove moisture when compressed air therefrom passes.Upstream at desiccant material is provided with inlet, is provided with outlet in its downstream.Be provided with coalescent in inlet, it has the coalescence material that is used for removing at least from compressed air mist of oil.Be parallel to coalescent in the inlet and be provided with check-valves.This check-valves can force compressed air to pass coalescent when inlet flows to outlet at air, and can make compressed air walk around coalescent when purifying air from outlet flow direction inlet.
In one embodiment of the invention, support member advantageously is fixed in the housing with check-valves coalescent.
In another embodiment, bias assembly has applied thrust to the desiccant material in the housing.
Another aspect of the present invention also provides a kind of method of removing mist of oil and fluid oil in the filter cylinder.This method comprises that guiding enters air and passes coalescent and walk around coalescent step during reverse reverse purge flow.
In conjunction with the accompanying drawings and after having read following description and claims, those skilled in the art can know other advantage of the present invention and benefit.
Brief description
The present invention can adopt the physical form of some parts and arrangements of components, will describe a preferred embodiment of the present invention in detail in following introduction.
Fig. 1 is the longitudinal sectional view according to spin-on desiccant cartridge of the present invention.
Fig. 2 is the longitudinal sectional view of another preferred embodiment of spin-on desiccant cartridge.
The detailed description of invention
Fig. 1 has shown the air dryer that forms according to the present invention, and it is on the whole by label 10 expressions.Be to be understood that, other parts of air dryer assembly are well-known in the art, for example as shown in the U.S. Patent No. 5622544 and introducing, its disclosure is incorporated herein by reference, therefore here thinks to have no need for further discussion.Spin-on cartridge of the present invention comprises that being preferably the first cup-shaped housing is shell 12.That is to say that first end is that blind end 14 has formed dome, be sealed and fixed on the load plate 20 and second end is an open end 16.Load plate comprises inlet 22, and it can make the compressed air from the compressor (not shown) pass filter cylinder, removes pollutant and moisture in the air stream in filter cylinder.Also formed second channel and promptly export 24 on load plate 20, it is positioned at central position in one embodiment.Outlet 24 communicates with components downstream such as air storage chamber (not shown), and the compressed air of cleaning and drying is kept in the air storage chamber, when compressed air system needs it till.
Second housing is the desiccant material 34 that inner casing 30 has encapsulated bead form.Inner casing comprises median wall or column part 32, and it extends outward from a surface of supporting walls part 36.Supporting walls has one group of hole 38, and its size is made for and can allows air to flow on the desiccant layer.From another surface of supporting walls part, extended support ring portion 39.Except the flange of giving prominence to downwards along the periphery of supporting walls part 36 40, ring portion 39 is positioned at inner casing 30 in the shell 12 of cartridge assembly 10.
Desiccant material 34 has preferably filled up cavity or the space between inner casing 30 and the shell 12.That is to say that desiccant material 34 is contained in the inner casing 30, and fill up the annular gap between cylindrical wall part 32 and the shell 12.Material with holes or fabric 50 are breathed freely, it remains on desiccant material on the supporting walls part 36 by certain mode, this mode is traditional mode, therefore need not make further discussion in the structure and the operating aspect of fabric 50 and supporting walls with holes.
52 pairs of desiccant layers of bias piece such as spring apply thrust.In this embodiment, spring 52 engages with ring wall part 39, and promotes inner casing 30 towards the blind end 14 of shell 12.The other end of spring 52 engages with interior support member part 60 along inner margin portion 62, and this inner margin portion 62 is sealedly engaged with load plate 20 around outlet 24.Interior support member part 60 extends out from load plate 20, and comprises radial wall part 64, and it ends in the axially extended groove 66 along periphery.First end that groove 66 has been fixed coalescent layer or coalescent 70 i.e. the upper end.Coalescent layer 70 preferably has the little glass fibre or the glass fiber material of even seat material or felt material.When exporting 22 through coalescent layer 70, coalescent layer 70 can be caught or coalescent oil or mist of oil before air is entering desiccant layer.In one embodiment, coalescent 70 upper end 72 is contained in the interior support member 60, and second end is that lower end 74 and load plate 20 are spaced apart.This has just formed radial passage 80, and it optionally sees through air-flow, and this can be clearer by following introduction.
The control device of one-way flow or check-valves 90 are relevant with purge outlet passage 80.This check-valves can prevent to enter into purge outlet from the air-flow of inlet 22.Like this, all enter air-flow and all must pass coalescent 70 before arriving desiccant layer.On the other hand, when reverse flow or purification stream, check-valves 90 can freely be opened.Such as known in the art, reverse flow or purification stream periodically pass desiccant layer, so that make desiccant material regeneration, and the moisture that is absorbed are taken to outside the system, promptly remove collected pollutant and moisture.By check-valves 90 is arranged to be parallel to coalescent 70, air-flow just will make air-flow pass check-valves 90 and purify stream at 22 o'clock by outlet 24 flow direction inlets from 22 flow direction outlets 24 via coalescent 70 that enter the mouth.This flow path makes to purify air walks around coalescent 70 in its purifying paths, extract the coalescent oil that temporarily is collected in the zone 84 simultaneously.These oil can pass wicking element 82 and move, and move to outside the check-valves 90, and here it communicates with external environment condition, atmosphere or other required position.Like this, oil laden air is passed coalescent 70 that is used to remove oil or oil vapour, and purifying gas flow need not reflux coalescent just can remove coalescent oil.
Fig. 2 is an another embodiment of the present invention, its shown adoptable, comprised the various variations of novel concept of the present invention simultaneously.For purposes of brevity, and ease of understanding, adopt band apostrophe (') same numeral represent components identical, adopt new label to represent new element.Specifically, shell 12 ' accommodates inner casing 30 ', and inner casing 30 ' is through slightly change and include and be generally columniform outer wall 92, and wall 92 is that upper end is sealed by pressing plate 94 at first end.Pressing plate 94 allows at the blind end 14 ' of shell and remains between the desiccant layer 34 ' in the inner casing 32 ' biasing spring 52 ' is set.
In addition, the lower wall part 36 ' of inner casing has tapered center part 96, and it can increase the volume that is contained in the desiccant material in the inner casing 32 '.It is also understood that textile material 50 ' with holes remains on the drier bead in the inner casing 32 ', and can prevent that bead from passing the hole 38 ' in the supporting walls part 36 '.Here, supporting walls part 36 ' is formed by two parts, promptly is located at the outer ring portion between wall 32 ' and 92, and size is suitable for being contained in the inside that the bottom of tack tapered wall 96 is located.
As is understood, coalescent 70 ' still is parallel to cleaning outlet 80 ' and check-valves 90 ' is provided with, and making must be through coalescent 70 ' from entering the mouth the 22 ' air that flows to outlet 24 '.On the other hand, can walk around coalescent 70 ', and from filter cylinder, remove by check-valves 90 ' and be collected in oil in regional 84 ' from exporting 24 ' the reverse purification stream that flows to inlet 22 '.
Introduced the present invention hereinbefore with reference to illustrated embodiment.Obviously, other people can figure out modifications and variations of the present invention in reading with after having understood foregoing detailed description.For example, filter cylinder can not be a spin-on cartridge, perhaps can under the prerequisite that does not break away from spirit and scope of the invention as herein described, adopt multiple other structure, building material and the flow path of being flowed through.The present invention should be understood to and comprised all of these changes and modifications, as long as they are in the scope of claims or its equivalent.
Claims (14)
1. one kind is used for comprising from the air dryer assembly of the wet G﹠O of compressed air system removal:
Housing;
Inlet;
Outlet;
Be provided with near described inlet coalescent, it has the coalescence material of the oil that is used for removing at least compressed air;
The check-valves that is parallel to coalescent in the described inlet and is provided with, described check-valves can force compressed air to pass described coalescent when described inlet flows to described outlet at compressed air, and makes compressed air walk around described coalescent when described outlet flows to described inlet purifying air; With
Near the oil collection area territory that described check-valves is provided with, wherein said purified air stream is walked around described coalescent and will clear away described inlet at the oil in described zone.
2. air dryer assembly according to claim 1 is characterized in that, described air dryer assembly also comprises support member, and it is used for described coalescent and check-valves are fixed in the described housing.
3. air dryer assembly according to claim 1 is characterized in that, described air dryer assembly also comprises the desiccant material that is contained in the described housing.
4. air dryer assembly according to claim 1 is characterized in that, described air dryer assembly comprises that also drier keeps medium, and it is located at described check-valves and coalescent the downstream and the upstream of described desiccant material.
5. air dryer assembly according to claim 1 is characterized in that, described air dryer assembly also comprises load plate, and it is used to seal the open end of described housing.
6. air dryer assembly according to claim 1 is characterized in that, described air dryer assembly also comprises bias assembly, and it is used for the desiccant material of described housing is applied thrust.
7. air dryer assembly according to claim 1, it is characterized in that, described air dryer assembly also comprises the support member that is used for described coalescent and check-valves are fixed on described housing, and described bias assembly is located between described support member and the desiccant material.
8. air dryer assembly according to claim 1 is characterized in that described housing comprises shell and inner casing, and described shell has blind end and open end, and described open end functionally engages with load plate.
9. air dryer assembly according to claim 1 is characterized in that, described air dryer assembly also comprises the support member that is between described inner casing and the load plate, and described support member defines the sealed wall between the described entrance and exit.
10. air dryer assembly according to claim 1, it is characterized in that, described air dryer assembly also comprises the biasing spring of being located between described support member and the inner casing, it is used for the desiccant material that is contained in the described housing is applied thrust, and promotes described support member and described load plate formation sealed engagement.
11. air dryer assembly according to claim 1 is characterized in that, described coalescent comprise can be from forming the material of oil droplet in the mist of oil that wherein flows through.
12. air dryer assembly according to claim 1, it is characterized in that, described air dryer assembly also comprises and the relevant wicking element of described coalescent operability, and it is used for being sent near the described check-valves position with being formed at described coalescent oil droplet.
13. a drying is also filtered compressed-air actuated method, comprising:
Compressed air is flow in the inlet of air dryer assembly;
Compressed air is flow in the outlet via oily coalescent of described air dryer assembly and desiccant material;
Making purifies air flows to the described inlet via desiccant material and check-valves from the outlet of described air dryer assembly, and wherein said purifying air passed the oil that is collected in the oil collection area territory and flowed to described inlet and need not pass coalescent of described oil.
14. method according to claim 13 is characterized in that, described check-valves is arranged to be parallel to described oil filter assembly.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US25079502A | 2002-07-26 | 2002-07-26 | |
| US10/250,795 | 2002-07-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1671464A CN1671464A (en) | 2005-09-21 |
| CN1327937C true CN1327937C (en) | 2007-07-25 |
Family
ID=34272176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03817560 Expired - Lifetime CN1327937C (en) | 2002-07-26 | 2003-07-23 | Spin-on dessicant cartridge with integral oil removal filter |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN1327937C (en) |
| CA (1) | CA2489869C (en) |
| DE (2) | DE10397001A5 (en) |
| MX (1) | MXPA05000265A (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10329401B4 (en) † | 2003-06-30 | 2016-02-11 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | air dryer |
| DE102005057628A1 (en) * | 2005-12-02 | 2007-06-06 | Mahle International Gmbh | Air dryer arrangement, particularly for motor vehicle pneumatic braking systems, reduces oil contamination of dryer adsorbent by use of upstream carbon filter |
| US9101856B2 (en) * | 2012-06-01 | 2015-08-11 | Bendix Commercial Vehicle Systems Llc | Purge exhaust processor |
| DE102013103066A1 (en) * | 2013-03-26 | 2014-10-02 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Air filter cartridge with integrated coalescing filter / coarse dirt filter and desiccant filling |
| DE102015122169A1 (en) * | 2015-12-18 | 2017-06-22 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Air dryer cartridge |
| DE102016120477A1 (en) * | 2016-10-27 | 2018-05-03 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Air dryer cartridge |
| DE102018001601A1 (en) * | 2018-03-01 | 2019-09-05 | Mann+Hummel Gmbh | Coalescence separator, in particular for use in a compressor compressed air system, compressor compressed air system and use of a coalescer |
| CN109432967B (en) * | 2018-11-28 | 2023-11-24 | 浙江万安科技股份有限公司 | Drying tank with oil-gas separation function |
| CN112569719B (en) * | 2020-12-21 | 2024-07-02 | 玉环太平洋机械有限公司 | Top suction type oil mist separation purifier |
| CN112973295B (en) * | 2021-03-18 | 2022-03-29 | 中国石油大学(北京) | Coalescence filter core with flowing back function |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7803501U1 (en) * | 1978-02-07 | 1978-06-15 | Lugat Ag, Biel (Schweiz) | SEPARATION DEVICE FOR LIQUID DROPS AND / OR VAPORS, IN PARTICULAR OF WATER AND OIL FROM COMPRESSED AIR |
| US5286283A (en) * | 1993-05-17 | 1994-02-15 | Alliedsignal Inc. | Air dryer for compressed air system having a serviceable oil filter |
| US5622544A (en) * | 1995-07-05 | 1997-04-22 | Alliedsignal Truck Brake Systems Company | Air dryer cartridge with filter retainer |
-
2003
- 2003-07-23 DE DE10397001T patent/DE10397001A5/en not_active Ceased
- 2003-07-23 MX MXPA05000265A patent/MXPA05000265A/en active IP Right Grant
- 2003-07-23 CN CN 03817560 patent/CN1327937C/en not_active Expired - Lifetime
- 2003-07-23 CA CA2489869A patent/CA2489869C/en not_active Expired - Lifetime
- 2003-07-23 DE DE10392976T patent/DE10392976B4/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE10392976B4 (en) | 2012-05-31 |
| CN1671464A (en) | 2005-09-21 |
| DE10392976T5 (en) | 2005-09-08 |
| CA2489869A1 (en) | 2004-02-05 |
| CA2489869C (en) | 2011-12-20 |
| DE10397001A5 (en) | 2013-05-08 |
| MXPA05000265A (en) | 2005-03-31 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
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