CA2489869A1 - Spin-on desiccant cartridge with integral oil removal filter - Google Patents
Spin-on desiccant cartridge with integral oil removal filter Download PDFInfo
- Publication number
- CA2489869A1 CA2489869A1 CA002489869A CA2489869A CA2489869A1 CA 2489869 A1 CA2489869 A1 CA 2489869A1 CA 002489869 A CA002489869 A CA 002489869A CA 2489869 A CA2489869 A CA 2489869A CA 2489869 A1 CA2489869 A1 CA 2489869A1
- Authority
- CA
- Canada
- Prior art keywords
- assembly
- air
- air dryer
- inlet
- dryer assembly
- 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.)
- Granted
Links
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
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.
Claims (28)
1. An air dryer assembly for removing moisture and oil from a compressed air system comprising:
a shell;
a desiccant material received in the shell;
an inlet disposed upstream of the desiccant material;
an outlet disposed downstream of the desiccant material;
a coalescing element disposed in the inlet having a coalescing material for removing at least oil from the compressed air; and a check valve disposed in parallel with the coalescing element in the inlet, the check valve forcing compressed air to pass through the coalescing element as the compressed air flows from the inlet to the outlet and allowing compressed air to bypass the coalescing element as purge air flows from the outlet to the inlet.
a shell;
a desiccant material received in the shell;
an inlet disposed upstream of the desiccant material;
an outlet disposed downstream of the desiccant material;
a coalescing element disposed in the inlet having a coalescing material for removing at least oil from the compressed air; and a check valve disposed in parallel with the coalescing element in the inlet, the check valve forcing compressed air to pass through the coalescing element as the compressed air flows from the inlet to the outlet and allowing compressed air to bypass the coalescing element as purge air flows from the outlet to the inlet.
2. The air dryer assembly of claim 1 further comprising a support member for retaining the coalescing element and check valve in the shell.
3. The air dryer assembly of claim 1 further comprising a desiccant retaining media disposed downstream of the check valve and coalescing element and upstream of the desiccant material.
4. The air dryer assembly of claim 1 further comprising a load plate for closing an open end of the shell.
5. The air dryer assembly of claim 1 further comprising a biasing assembly for exerting a compacting force on the desiccant material in the shell.
6. The air dryer assembly of claim 5 further comprising a support member for retaining the coalescing element and check valve in the shell, the biasing assembly interposed between the support member and the desiccant material.
7. The air dryer assembly of claim 1 wherein the shell includes an outer shell and an inner shell, the outer shell having a closed end and an open end, the open end operatively engaging a load plate.
8. The air dryer assembly of claim 7 further comprising a support member interposed between the inner shell and the load plate, the support member defining a sealed wall between the inlet and outlet.
9. The air dryer assembly of claim 8 further comprising a biasing spring interposed between the support member and the inner shell for exerting a compacting force on the desiccant material and urging the support member toward sealed engagement with the load plate.
10. The air dryer assembly of claim 1 wherein the coalescing element includes a material that forms oil droplets from aerosols passing therethrough.
11. The air dryer assembly of claim 1 further comprising a wicking element operatively associated with the coalescing element for transferring droplets formed in the coalescing element to a location adjacent the check valve.
12. An air dryer assembly for use in an air brake assembly, the air dryer assembly comprising:
a housing having an internal chamber, and an inlet and an outlet in selective communication with the chamber;
a desiccant material received in the chamber between the inlet and outlet;
an oil filter assembly interposed between the inlet and the desiccant material for removing oil from air passing through the chamber; and a check valve disposed in parallel relation with the oil filter assembly and interposed between the inlet and the desiccant material, the check valve precluding air flow therethrough from the inlet toward the desiccant material and allowing purge air flow therethrough from the desiccant material to the inlet.
a housing having an internal chamber, and an inlet and an outlet in selective communication with the chamber;
a desiccant material received in the chamber between the inlet and outlet;
an oil filter assembly interposed between the inlet and the desiccant material for removing oil from air passing through the chamber; and a check valve disposed in parallel relation with the oil filter assembly and interposed between the inlet and the desiccant material, the check valve precluding air flow therethrough from the inlet toward the desiccant material and allowing purge air flow therethrough from the desiccant material to the inlet.
13. The air dryer assembly of claim 12 further comprising a support member for retaining the coalescing element and check valve in the housing.
14. The air dryer assembly of claim 12 further comprising a desiccant retaining material disposed downstream of the check valve and coalescing element and upstream of the desiccant material.
15. The air dryer assembly of claim 12 further comprising a load plate for closing an open end of the housing.
16. The air dryer assembly of claim 15 further comprising a biasing assembly for exerting a compacting force on the desiccant material in the housing.
17. The air dryer assembly of claim 16 further comprising a support member for retaining the oil filter assembly and check valve in the housing, the biasing assembly interposed between the support member and the desiccant material.
18. The air dryer assembly of claim 12 wherein the housing includes ail outer shell and an inner shell, the outer shell having a closed end and an open end, the open end operatively engaging a load plate.
19. The air dryer assembly of claim 18 further comprising a support member interposed between the inner shell and the load plate, the support member defining a sealed wall between the inlet and outlet.
20. The air dryer assembly of claim 19 further comprising a biasing spring interposed between the support member and the inner shell for exerting a compacting force on the desiccant material and urging the support member toward sealed engagement with the load plate.
21. The air dryer assembly of claim 12 wherein the oil filter assembly includes a material that forms oil droplets from aerosols passing therethrough.
22. The air dryer assembly of claim 12 further comprising a wicking element operatively associated with the oil filter assembly for transferring oil droplets formed in the oil filter assembly to a location adjacent the check valve.
23. An air dryer assembly for removing moisture and oil from a compressed air system comprising:
a housing having an internal chamber, and an inlet and outlet in selective communication with the chamber;
a desiccant material disposed within said housing;
an oil filter assembly interposed between the inlet and the desiccant material for removing oil from air passing through the chamber; and a means for permitting air flow in only one of two directions.
a housing having an internal chamber, and an inlet and outlet in selective communication with the chamber;
a desiccant material disposed within said housing;
an oil filter assembly interposed between the inlet and the desiccant material for removing oil from air passing through the chamber; and a means for permitting air flow in only one of two directions.
24. The air dryer assembly of claim 23 wherein the means for permitting air flow in only one of two directions allows for air to pass from the inlet to the outlet through the oil filter assembly, but does not allow air passing from the outlet to the inlet to pass through the oil filtering assembly.
25. The air dryer assembly of claim 24 wherein the means for permitting air flow in only one or two directions comprises a check valve disposed in parallel with the oil filter assembly.
26. A method of drying and filtering compressed air comprising:
flowing compressed air into an inlet of an air dryer assembly;
passing the compressed air through an oil filter assembly, through a desiccant material and to the outlet of the air dryer assembly;
flowing purge air from the outlet, through the desiccant material, through a means of restricting air flow and to the inlet of the air dryer assembly.
flowing compressed air into an inlet of an air dryer assembly;
passing the compressed air through an oil filter assembly, through a desiccant material and to the outlet of the air dryer assembly;
flowing purge air from the outlet, through the desiccant material, through a means of restricting air flow and to the inlet of the air dryer assembly.
27. The method of claim 26, wherein the purge air does not pass through the oil filter assembly.
28. The method of claim 27, wherein the means for restricting air flow comprises a check valve disposed in parallel with the oil filter assembly.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US25079502A | 2002-07-26 | 2002-07-26 | |
| US10/250,795 | 2002-07-26 | ||
| PCT/US2003/022940 WO2004011125A2 (en) | 2002-07-26 | 2003-07-23 | Spin-on desiccant cartridge with integral oil removal filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2489869A1 true CA2489869A1 (en) | 2004-02-05 |
| CA2489869C CA2489869C (en) | 2011-12-20 |
Family
ID=34272176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2489869A Expired - Lifetime CA2489869C (en) | 2002-07-26 | 2003-07-23 | Spin-on desiccant 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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109432967A (en) * | 2018-11-28 | 2019-03-08 | 浙江万安科技股份有限公司 | Drying chamber with Oil-gas Separation function |
Families Citing this family (9)
| 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 |
| CN112569719A (en) * | 2020-12-21 | 2021-03-30 | 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 CA CA2489869A patent/CA2489869C/en not_active Expired - Lifetime
- 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 DE DE10397001T patent/DE10397001A5/en not_active Ceased
- 2003-07-23 DE DE10392976T patent/DE10392976B4/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109432967A (en) * | 2018-11-28 | 2019-03-08 | 浙江万安科技股份有限公司 | Drying chamber with Oil-gas Separation function |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10392976B4 (en) | 2012-05-31 |
| DE10397001A5 (en) | 2013-05-08 |
| CN1327937C (en) | 2007-07-25 |
| DE10392976T5 (en) | 2005-09-08 |
| CA2489869C (en) | 2011-12-20 |
| CN1671464A (en) | 2005-09-21 |
| MXPA05000265A (en) | 2005-03-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20230724 |