EP3389827A2 - Lufttrocknerpatrone - Google Patents

Lufttrocknerpatrone

Info

Publication number
EP3389827A2
EP3389827A2 EP16819841.4A EP16819841A EP3389827A2 EP 3389827 A2 EP3389827 A2 EP 3389827A2 EP 16819841 A EP16819841 A EP 16819841A EP 3389827 A2 EP3389827 A2 EP 3389827A2
Authority
EP
European Patent Office
Prior art keywords
cartridge
housing
air dryer
dryer cartridge
longitudinal axis
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.)
Withdrawn
Application number
EP16819841.4A
Other languages
German (de)
English (en)
French (fr)
Inventor
Andreas Ochsenkühn
Stefan SCHÄBEL
Günther Reifinger
Andreas Leinung
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Original Assignee
Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH filed Critical Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Publication of EP3389827A2 publication Critical patent/EP3389827A2/de
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/02Separation 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
    • B01D53/04Separation 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
    • B01D53/0407Constructional details of adsorbing systems
    • B01D53/0415Beds in cartridges
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/26Drying gases or vapours
    • B01D53/261Drying gases or vapours by adsorption
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE 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
    • B60T17/00Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/002Air treatment devices
    • B60T17/004Draining and drying devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2257/00Components to be removed
    • B01D2257/80Water
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2259/00Type of treatment
    • B01D2259/45Gas separation or purification devices adapted for specific applications
    • B01D2259/4566Gas separation or purification devices adapted for specific applications for use in transportation means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/02Separation 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
    • B01D53/04Separation 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
    • B01D53/0407Constructional details of adsorbing systems
    • B01D53/0431Beds with radial gas flow

Definitions

  • the present invention relates to an air dryer cartridge, in particular for a compressed air treatment plant of commercial vehicles.
  • Such air dryer cartridges are used for example in commercial vehicles such as trucks and tractors. These often have one or more compressed air consumers such as brake systems or air suspensions that need to be supplied with compressed air.
  • the compressed air is typically from a
  • Compressor for example a driven by a drive motor of the vehicle reciprocating compressor provided.
  • the compressed air provided by the compressor usually has to be further processed.
  • the compressed air is cleaned of dirt particles that were already contained in the intake air, as well as oil and soot particles that are introduced by the compressor into the compressed air during the compression process, and moisture is deposited in the compressed air.
  • the compressed air treatment systems of commercial vehicles usually have air dryer cartridges that dehumidify the compressed air and can also absorb oil and dirt particles.
  • Conventional air dryer cartridges have a cartridge housing with a
  • Desiccant and a mounting flange for closing a housing cover facing away from the open end of the cartridge housing and attaching the air dryer cartridge to a compressed air treatment device.
  • a base plate is provided on the side facing away from the housing cover end face of the air dryer cartridge, which is on the one hand connected to the mounting flange and on the other hand connected to the cartridge housing by means of a flange.
  • This bottom plate is shaped such that it has an annular recess, in which a square sealing ring is inserted or can be used, which is a seal between the air dryer cartridge and the compressed air treatment device should effect in the radial direction.
  • Such an air dryer cartridge is disclosed for example in DE 10 2013 103 066 A1.
  • the invention has for its object to provide an improved air dryer cartridge, which allows easier handling, especially when mounting and dismounting to or from a compressed air treatment device.
  • the air dryer cartridge according to the invention has a cartridge housing with a closed housing cover, a received in the cartridge housing
  • the air dryer cartridge also has a sealing ring, which is arranged on the housing cover facing away from the end face of the air dryer cartridge for sealing the air dryer cartridge opposite a compressed air treatment device in the radial direction transverse to a longitudinal axis of the air dryer cartridge.
  • a projection of a maximum outer diameter of the cartridge housing relative to a maximum outer diameter of the sealing ring in the radial direction transverse to the longitudinal axis of the air dryer cartridge at most about 5% of the maximum outer diameter of the cartridge housing or at most about 6 mm.
  • a radial projection dimension of the maximum outer diameter of the cartridge housing with respect to the maximum outer diameter of the sealing ring so that it is at most about 5%, preferably at most about 3%, more preferably about 1 to 2% of the maximum outer diameter of the
  • Cartridge housing or at most about 6 mm, preferably at most about 4 mm, more preferably about 1, 5 to 2 mm. Due to the significantly reduced radial projection dimensions compared to conventional constructions, the external Diameter of the cartridge housing and thus the air dryer cartridge be significantly reduced. An air dryer cartridge with a smaller outer diameter allows easier handling, especially with one hand, when mounting and dismounting the air dryer cartridge to or from a Druck Kunststoffaufhneungs- device. Such a reduced air dryer cartridge also requires less
  • the maximum outer diameter 68 of the cartridge housing 14 is at most about 130 mm, preferably about 126 mm.
  • the maximum outer diameter of the cartridge housing is at most about 80%, preferably at most about 75% of a height of the cartridge housing parallel to the longitudinal axis of the air dryer cartridge.
  • a filter device is arranged substantially coaxially to the longitudinal axis of the air dryer cartridge within the cartridge housing, wherein the filter device is preferably flowed through in a substantially radial direction transverse to the longitudinal axis of the air dryer cartridge.
  • a portion of the desiccant is preferably received in a space region radially outside of the filter device within the cartridge housing.
  • a width of this space area in a direction transverse to the longitudinal axis of the air dryer cartridge is at least about 10%, more preferably at least about 12% of the maximum outer diameter of the cartridge housing, or at least about 10 mm, preferably at least about 15 mm.
  • an inner housing is arranged in the cartridge housing to receive the desiccant in a receiving space formed between the cartridge housing and the inner housing and possibly also the mounting flange, and a biasing member is provided to at least one Press part of the inner housing towards the housing cover.
  • a portion of the desiccant is preferably received in a space region radially within the biasing member.
  • the inner housing has a first part and a second part, wherein the first part is arranged radially outside of the second part and the second part is movable relative to the first part in the axial direction parallel to the longitudinal axis of the air dryer cartridge.
  • the second part of the inner housing is cup-shaped and at least partially surrounded by the biasing member.
  • a diameter of the space area radially inward of the biasing member in which desiccant is received is at least about 25%, preferably at least about 30% of the maximum outer diameter of the cartridge housing and / or at most about 45 mm, preferably at most about a maximum, in a direction transverse to the longitudinal axis of the air dryer cartridge 40 mm.
  • the present invention is particularly suitable for use in compressed air treatment systems of a commercial vehicle advantageous.
  • FIG. 1 shows, for the most part schematically, a partial sectional view of a compressed air preparation system according to a first exemplary embodiment of the invention; a partial sectional view of a compressed air treatment system according to a second embodiment of the invention; a partial sectional view of a compressed air treatment system according to a third embodiment of the invention; a perspective view of a support projection of a compressed air treatment device according to an embodiment of the invention; a simplified illustration of an air dryer cartridge of the invention to illustrate different measures.
  • FIG. 1 shows the construction of a compressed air treatment system with an inventive air dryer cartridge according to a first embodiment which is mounted on a compressed air treatment device.
  • the air dryer cartridge 10 is substantially rotationally symmetrical to a longitudinal axis 12 and has a substantially cylindrical or cup-shaped cartridge housing 14 with a closed housing cover 16, which is designed in the form of a deep-drawn sheet metal.
  • the housing cover 16 facing away from the open end of the cartridge housing 14 is closed with a mounting flange 18 (preferably made of metal).
  • the mounting flange 8 is fixed and fluid-tightly connected to the cartridge housing 14.
  • the mounting flange 18 has, for example, an annular inlet opening 20 and, for example, a circular, central outlet opening 24.
  • the outlet opening 24 is in the radial direction transverse to the longitudinal axis 12 within the inlet opening 20th arranged.
  • inlet and outlet in this context refer to the fluid flow direction through the air dryer cartridge during normal operation to dry and purify the fluid. In the regeneration mode, the air dryer cartridge 10 and thus the inlet and outlet openings 20, 24 are flowed through in the reverse direction.
  • the central outlet opening 24 is delimited by a fastening neck 22 of the fastening flange 18.
  • This attachment piece 22 is provided with an internal thread.
  • the air dryer cartridge 10 is mountable on a compressed air treatment device 30, which is part of a compressed air treatment plant.
  • the compressed air treatment device 30 has a connecting piece 32 which is provided with an external thread.
  • the air dryer cartridge 10 can be screwed to the attachment piece 22 of its mounting flange 18 on the connecting piece 32 of the compressed air conditioning device 30.
  • the screw 34 between the attachment piece 22 and the connecting piece 32 forms a detachable, but fluid-tight connection between the air dryer cartridge 10 and the compressed air treatment device 30.
  • the longitudinal axis 12 of the air dryer cartridge 10 and the longitudinal axis of the connecting piece 32 of the compressed air treatment device 30 are coaxial.
  • the compressed air treatment device 30 has an annular opening 36, for example, which in the assembled state of the air dryer cartridge 10 is in fluid communication with the inlet opening 20 of the mounting flange 18.
  • the compressed air treatment device 30 further has, for example, a circular second opening 38, which in the installed state of the air dryer cartridge 10 is in fluid communication with the outlet opening 24 of the mounting flange 18.
  • the arrows a symbolize the fluid flow direction during normal operation of the air dryer cartridge 0, and the arrows b symbolize the fluid flow direction in the regeneration operation of the air dryer cartridge 10.
  • the air dryer cartridge 10 also has an inner housing 40 which consists of a first part 40a and a second part 40b, and example is formed of a plastic material.
  • Housing 40 is arranged in the radial direction transversely to the longitudinal axis 12 outside of the second part 40 b of the inner housing 40.
  • Cartridge housing 14, mounting flange 18, and inner housing 40 define a desiccant 60 receiving space (eg, silica gel) therebetween.
  • the first part 40 a of the inner housing 40 is provided at a wall portion with a plurality of openings 42 which are in fluid communication with the inlet opening 20 of the mounting flange 18.
  • the compressed air from the compressed air treatment device 30 can flow through the inlet opening 20 in the mounting flange 18 and the openings 42 of the inner housing 40 into the interior of the cartridge housing 14.
  • the wall 42 provided with the openings of the first part 40a of the inner housing 40 is surrounded by a filter device 44 in the form of a coalescence filter or oil filter.
  • the filter device 44 is, for example, wound around the wall of the first part 40a of the inner housing 40 that runs essentially parallel to the longitudinal axis 12 of the air dryer cartridge 10. In this way, the compressed air, before it flows through the desiccant 60 in the cartridge housing 14 of the air dryer cartridge 10, to be cleaned.
  • the filter device 44 is in turn surrounded by a so-called wicking material 46, which may be formed by a porous material, a nonwoven material, etc. and is permeable to air. The wicking material prevents oil contamination of the desiccant 60.
  • wicking material 46 prevents oil contamination of the desiccant 60.
  • the filter device 44 is flowed through in the radial direction of the compressed air.
  • a space region 64 radially outside the filter device 44 is also filled with desiccant 60.
  • the space within the cartridge housing 4 can be used optimally for receiving the desiccant 60, so that more desiccant 60 can be accommodated in the same space as a result and thus a higher drying capacity for the air dryer cartridge 10 is achieved or requires less space for the desiccant 60
  • the air dryer cartridge 10 thus has a smaller diameter of, for example, only about 126 mm (compared to a diameter of about 140 mm. Licher air dryer cartridges) can be constructed.
  • a smaller diameter in turn has advantages in terms of handling the air dryer cartridge 10 and the necessary space in a compressed air treatment plant.
  • a bypass 48 is provided below the filter device 44.
  • openings 50 are provided, which connect the space portion 64 with the bypass 48.
  • a check valve 52 is also arranged in the bypass 48.
  • the check valve 52 prevents in normal operation of the air dryer cartridge 10 that compressed air flows from the inlet port 20 past the filter device 44 through the bypass 48 unpurified in the desiccant 60, but allowed in the regeneration mode of the air dryer cartridge 10 an air flow b to the filter device 44 over.
  • the check valve 52 is preferably formed from a plastic material (eg an elastomer). It is preferably designed in one piece with the first part 40a of the inner housing 40.
  • a space portion 64a radially outward of the check valve 52 may also be filled with desiccant 60. In this way, the space within the cartridge housing 14 can be used even more effectively for receiving the desiccant 60.
  • the first part 40a of the inner housing 40 in the region of the bypass 48 fluid-tightly connected to the mounting flange 18, for example glued.
  • a sealing lip 54 is provided on the first part 40a of the inner housing 40, which is preferably formed integrally therewith and is preferably resiliently biased against the attachment piece 22.
  • the second part 40b of the inner housing 40 has openings 56 in the central area, which connect the interior of the cartridge housing 4 with the outlet opening 24.
  • a sealing lip 58 is provided, which is preferably formed integrally therewith and is preferably resiliently biased against the first part 40 a of the inner housing 40.
  • the second part 40b of the inner housing 40 is movable in the axial direction, ie parallel or coaxial with the longitudinal axis 12 of the air dryer cartridge 10 in the cartridge housing 10.
  • a biasing member 62 in the form of a compression spring, which is supported against the first part 40 a of the inner housing 40, the second part 40 b of the inner housing 40 is pressed toward the housing cover 16 to compress the desiccant 60.
  • the second part 40b of the inner housing 40 is designed such that a part of the desiccant 60 is arranged in a spatial area 66 in the radial direction within the pretensioning element 62. Due to this optimal space utilization inside the cartridge housing 14, the air dryer cartridge 10 can be smaller at the same drying performance, i. be configured with a smaller diameter and / or a smaller height.
  • FIG. 5 shows, on an air dryer cartridge shown in greatly simplified form, various dimensions which are relevant in the case of the air dryer cartridge 0 according to the invention.
  • a height of the air dryer cartridge 10 (in the axial direction parallel to the longitudinal axis 12 of the air dryer cartridge) is designated by the reference numeral 69, a maximum outer diameter of the air dryer cartridge 10 and its cartridge housing 14 (in the radial direction perpendicular to the longitudinal axis 12 of the air dryer cartridge) is denoted by the reference numeral 68 characterized.
  • a radial diameter of the space portion 66 in which desiccant 60 is present radially inward of the biasing member 62 is indicated at 67
  • a radial width of the space portion 64 in which desiccant 60 is present radially outwardly of the filter means 44 is indicated by the reference numeral 64 marked.
  • the maximum outer diameter 68 of the cartridge housing 14 is at most about 130 mm, for example about 126 mm; the maximum outer diameter 68 of the cartridge housing 14 is at most about 80%, for example about 70 to 75% of the height 69 of the cartridge housing 14; the radial width 65 of the space region 64 is at least about 10%, more preferably at least about 12% of the Outer diameter 68 of the cartridge housing 14 or at least about 10 mm, preferably at least about 15 mm; and the radial diameter 67 of the space portion 66 is at least about 25%, more preferably at least about 30%, of the outer diameter 68 of the cartridge housing 14 and at most about 45 mm, more preferably at most about 40 mm.
  • the height 69 of the air dryer cartridge 10 is about 165 mm, the outer diameter 68 of the cartridge housing 14 about 126 mm, the radial width 65 of the space portion 64 about 18.5 mm, and the radial diameter 67 of the space portion 66 about 40 mm.
  • a sealing ring 70 In order to achieve a fluid-tight seal between the compressed air treatment device 30 and the air dryer cartridge 10 in the radial direction, a sealing ring 70, preferably a square sealing ring is arranged between these two elements.
  • the sealing ring 70 has, for example, a width (in the direction perpendicular to the longitudinal axis 12) in the relaxed initial state in the range from approximately 5 to 8 mm, preferably from approximately 6 to 6.5 mm, a height (in the direction parallel to the longitudinal axis 2). in the relaxed
  • Initial state in the range of about 6 to 10 mm, preferably from about 7 to 8 mm, and an outer diameter in the relaxed initial state in the range of about 100 to 120 mm.
  • the sealing ring 70 rests on the one hand on a first sealing surface 80 of the air dryer cartridge 10 and on the other hand on a second sealing surface 82 of the compressed air treatment device 30.
  • the sealing ring 70 is compressed and produces a fluid-tight seal with respect to the two sealing surfaces 80, 82.
  • the first sealing surface 80 is provided on a side facing away from the housing cover 16 of the cartridge housing 14 front side of the air dryer cartridge 10. It runs in a plane substantially perpendicular to the longitudinal axis 12 of the air dryer cartridge 10 is substantially flat. In addition, the first sealing surface 80 extends in radial
  • the first sealing surface 80 is formed by the plate of the cartridge housing 14, which at the open end of the
  • Cartridge housing 14 a predetermined length substantially flat around the
  • the cartridge housing 14 is folded by about 15 mm to the mounting flange 18, so that the first sealing surface 80 in the radial direction also extends over about 15 mm, without this embodiment should be limited to these dimensions.
  • the folded portion 15 of the cartridge housing 14 may also with the
  • Mounting flange 18 welded, soldered or glued.
  • the second sealing surface 82 is formed on one of the air dryer cartridge 10 facing outside of the compressed air treatment device 30. It runs in a plane substantially perpendicular to the longitudinal axis of the connecting piece 32 and thus also substantially perpendicular to the longitudinal axis 12 of the air dryer cartridge substantially flat. The first and second sealing surfaces 80, 82 thus run substantially parallel to one another.
  • a circumferential support projection 72 is provided on the compressed air treatment device 30, preferably integrally formed therewith.
  • This support projection 72 adjoins the second sealing surface 82 in the radial direction perpendicular to the longitudinal axis 12 of the air dryer cartridge 10.
  • the support projection 72 projects substantially parallel to the longitudinal axis 12 of the air dryer cartridge 10 in the direction of the air dryer cartridge 10 and has on its the connecting piece 32 facing the inside a contact surface 73 for the sealing ring 70.
  • the contact surface 73 of the support projection 72 extends in a direction parallel to the longitudinal axis 12 of the air dryer cartridge 10 over a height which is smaller than a height dimension of the sealing ring 70 in a direction parallel to the longitudinal axis 12 of the air dryer cartridge 10.
  • the height dimension of the abutment surface 73 of the support projection 72 is about 3.5 to 4.0 mm. So it can be ensured that the cartridge housing 14 when mounting the Air dryer cartridge 10 does not come into contact with the support projection 72 on the compressed air treatment device 30 and the sealing ring 70 can accordingly be sufficiently compressed to ensure the desired sealing effect.
  • the support projection 72 has an end section 74 on its front side facing the air dryer cartridge 10. As illustrated in Fig. 1, this end portion 74 is in the radial direction perpendicular to the longitudinal axis 12 of the air dryer cartridge 10 outside the abutment surface 73 of the support projection 72 and outside the
  • Cartridge housing 14 of the air dryer cartridge 10 is arranged.
  • the support projection 72 including the end portion 74 extends in the direction parallel to the longitudinal axis 12 of the air dryer cartridge 10 in total over a height which is greater than the height dimension of the sealing ring 70.
  • the total height dimension of the support projection 72 is about 10 bis 15 mm.
  • the end section 74 of the support projection can thus serve as a positioning aid in the assembly of the air dryer cartridge 10 on the compressed air treatment device 30.
  • the end portion 74 of the support projection 72 may serve as splash protection.
  • This construction of the first and second sealing surfaces 80, 82 for the sealing ring 70 causes the position of the sealing ring 70 is not fixed in the radial direction, but within the limits of the sealing surfaces 80, 82 can be chosen freely. This results in a greater flexibility in the combination of air dryer cartridges 10 with different compressed air treatment devices 30 and different air dryer cartridges 10 with a compressed air conditioning device 30. Moreover, as compared to conventional constructions on a circumferential groove in a bottom plate of the air dryer cartridge 10 is omitted, in which the sealing ring clamped must be, the sealing ring 70 can be very easily applied to the first sealing surface 80, so that the assembly and disassembly of the sealing ring 70 are simplified.
  • the sealing ring 70 it can be pre-fixed to the compressed air treatment device 30 with an adhesive layer or adhesive strip on the first sealing surface 80 of the air dryer cartridge 10 or on the second sealing surface 82 of the compressed air preparation device 30 prior to assembly of the air dryer cartridge 10.
  • the air dryer cartridges 10 are usually supplied with a protective cover, which covers the housing cover 16 facing away from the front side of the air dryer cartridge 10. In this protective cover, the sealing ring 70 may be inserted as a separate component.
  • a protective film may be removed from the seal ring 70 to expose the adhesive layer on the seal ring 70.
  • the sealing ring 70 may then be fixed to the first or the second sealing surface 80, 82 before the air dryer cartridge 10 is screwed onto the compressed air treatment device 30.
  • the sealing ring 70 may already be fixed to the air dryer cartridge 10 in the delivered state. Instead of gluing and fatliquoring is conceivable, which ensures adequate adhesion.
  • sealing ring 70 eg the side facing the first sealing surface 80
  • an adhesive layer e.g., the adhesive layer
  • the opposite side of the sealing ring 70 e.g. the side facing the second sealing surface 82
  • the sealing ring 70 is positioned relatively far outward in the radial direction or the outer diameter 68 of the cartridge housing 14 projects relatively little beyond the outer diameter of the sealing ring 70.
  • a radial projection dimension 78 of the outer diameter 68 of the cartridge housing 4 relative to the outer diameter of the sealing ring 70 in the radial direction transverse to the longitudinal axis 12 of the air dryer cartridge 10 is according to the invention only at most about 6 mm, more preferably at most about 4 mm, or at most about 5%, more preferably at most about 3% of the maximum outer diameter 68 of the cartridge housing 14th
  • the radial projection dimension 78 is approximately 1.5 to 2.0 mm or approximately 1 to 2% of the outer diameter 68 of the cartridge housing.
  • the support projection 72 may be formed with one or preferably more openings / holes or recesses for draining this gap.
  • FIG. 4 shows an example of a corresponding embodiment of the support projection 72, wherein for the sake of clarity, only one recess 76 is shown.
  • the recess extends through the entire end portion 74 of the support projection 72 in the width direction of the support projection 72.
  • the compressed air treatment device 30 facing lower edge of the recess 76 is located in
  • the openings or recesses 76 are preferably sloping outwards in the radial direction, i. designed inclined towards the compressed air treatment device 30 so that the water can flow better.
  • Fig. 2 shows the structure of a compressed air treatment system with an air dryer cartridge according to the invention according to a second embodiment.
  • the same components and components are identified by the same reference numerals as in the first embodiment.
  • the second embodiment differs from the first embodiment described above by the construction of the first sealing surface on the air dryer cartridge.
  • the cartridge housing 4 ends at the front side facing away from the housing cover 16 in the region of the outside of the
  • Mounting flange 18 The end of the cartridge housing is fixedly and fluid tightly connected (28) to the peripheral edge of the mounting flange 18, for example, welded, soldered or glued.
  • the first sealing surface 80 is through the outside of the mounting flange 18 facing the compressed air treatment device 30 educated.
  • the compressed air treatment system of this embodiment corresponds to the compressed air treatment system of the first embodiment.
  • Fig. 3 shows the structure of a compressed air treatment system with an air dryer cartridge according to the invention according to a third embodiment.
  • the same components and components are identified by the same reference numerals as in the first embodiment.
  • the third embodiment also differs from the embodiments described above by the construction of the first sealing surface on the air dryer cartridge.
  • the cartridge housing 14 terminates at the end facing away from the housing cover 16 in the region of the outside of the mounting flange 18.
  • the end of the cartridge housing is firmly and fluid-tightly connected, for example welded, to the peripheral edge of the mounting flange 18. soldered or glued.
  • the first sealing surface 80 for the sealing ring 70 is provided by an adapter 26 which is provided on the front side of the air dryer cartridge 10 facing away from the housing cover 16, in particular on the front side
  • Cartridge housing 14 and / or the mounting flange 18 is mounted or attachable.
  • This adapter 26 is configured at least partially planar on its outer side facing away from the housing cover 16, so that the first sealing surface 80 can be formed by this planar portion of the adapter 26.
  • the adapter 26 is also used in combination with the first embodiment, i. H. with the folded portion 15 of the cartridge housing 14, and in particular also with other air dryer cartridges, the housing cover 16 facing away from the end face is not designed plan, conceivable.
  • the adapter 26 may be configured as a simple floor panel.
  • the compressed air treatment system of this embodiment corresponds to the compressed air treatment systems of the first and second embodiments.
  • the present invention is not limited to the above-described embodiments of the compressed air treatment system.
  • those skilled in the art will recognize numerous variants and modifications that fall within the scope of the claims.
  • the inner housing 40 is constructed in the described embodiments each of a first part 40a and a second part 40b, the inner housing 40 may be formed integrally in other embodiments or be composed of more than two housing parts.
  • the check valve 52 and the sealing lips 54, 58 are each formed integrally with the inner housing 40 in the described embodiments, these components 52, 54, 58 may also be formed as separate components connected to the inner housing 40 in other embodiments ,

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Drying Of Gases (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
EP16819841.4A 2015-12-18 2016-12-13 Lufttrocknerpatrone Withdrawn EP3389827A2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015122166.7A DE102015122166A1 (de) 2015-12-18 2015-12-18 Lufttrocknerpatrone
PCT/EP2016/080837 WO2017102754A2 (de) 2015-12-18 2016-12-13 Lufttrocknerpatrone

Publications (1)

Publication Number Publication Date
EP3389827A2 true EP3389827A2 (de) 2018-10-24

Family

ID=57681556

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16819841.4A Withdrawn EP3389827A2 (de) 2015-12-18 2016-12-13 Lufttrocknerpatrone

Country Status (4)

Country Link
EP (1) EP3389827A2 (zh)
CN (1) CN108697967A (zh)
DE (1) DE102015122166A1 (zh)
WO (1) WO2017102754A2 (zh)

Family Cites Families (8)

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US5667566A (en) * 1991-09-06 1997-09-16 Reading Technologies, Inc. Apparatus for water vapor removal from a compressed gas
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CN108697967A (zh) 2018-10-23
WO2017102754A2 (de) 2017-06-22
WO2017102754A3 (de) 2017-08-10

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