• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    17 ABSTRACT The present invention relates to an arrangement for applying an air dryercartridge onto a support member (230). The cartridge comprises a containerportion for air drying and a recess portion having an internally threadedportion. The support member (230) has a protrusion (234) having anexternally correspondingly threaded portion (234a) arranged to be fitted intosaid recess portion for application of the cartridge onto said support member.A guiding arrangement (234b) is provided for faciiitating said application bymutually guiding said recess portion and said protrusion (234) respectivelyprior to screwing said threaded portions (234a) together. The present invention also relates to a vehicle. (Fig. sa)
    公开号:SE1550203A1
    申请号:SE1550203
    申请日:2015-02-23
    公开日:2016-08-24
    发明作者:Jeddi Tehrani Hossein；Sander Lars-Göran
    申请人:Scania Cv Ab；
    IPC主号:
    专利说明:

    ARRANGEMENT FOR APPLYING AN AIR DRYER CARTRIDGE ONTO ASUPPORT MEMBER TECHNICAL FIELD The invention relates to an arrangement for applying an air dryer cartridgeonto a support member. The invention also relates to a vehicle.
    BACKGROUND ART Vehicles such as heavy vehicle are usually equipped with a so called airprocessing system to which compressed air is distributed by means of acompressor operated by the combustion engine, or by an electric compressoroperated by an energy source such as a battery unit. The air processingsystem is arranged to distribute compressed air to e.g. the air suspensionsystem and the brake system of the vehicle. The air processing systemcomprises an air dryer for drying and filtering the air from particles from e.g.oil from the engine. The air dryer comprises a desiccant cartridge and asupport member with an extending threaded portion onto which the cartridge is arranged to be screwed.
    When changing desiccant cartridge in vehicles today, the first area of contactbetween cartridge and the support member is the threads. This leads tometal chips releasing from the threads and ending up between valves and sealing in the vehicle.
    A source of leakage in such vehicles is thus metal parts inside sealing areasand valves of the air processing system.
    The air processing system is commonly located such that it is difficult to access, which results in difficulties attaching the cartridge to the support member as it becomes difficult to align the internal threads of the cartridgewith the external threads on the extending threaded portion of the support member.
    US2008089759 discloses a thread for bolt connection for an air dryer, wherefemale and male threads are connected with respective parts that includedifferent strengths within range of threads, where cross section of threads isdifferent from cross section of gap between threads. Hereby the risk of damage of the threads is reduced.
    However, there is still a need to improve the arrangement for applying an airdryer cartridge onto a support member to overcome the above mentioned problems.
    OBJECTS OF THE INVENTION An object of the present invention is to provide an arrangement for applyingan air dryer cartridge onto a support member which reduces the risk of metalchips releasing from the threads and ending up between valves and sealing in the vehicle _ Another object of the present invention is to provide an arrangement forapplying an air dryer cartridge onto a support member which facilitatesattaching the cartridge to the support member.
    SUMMARY OF THE INVENTION These and other objects, apparent from the following description, areachieved by an arrangement and a vehicle as set out in the appendedindependent claims. Preferred embodiments of the arrangement are defined in appended dependent claims.
    Specifically an object of the invention is achieved by an arrangement forapplying an air dryer cartridge onto a support member: The cartridgecomprises a container portion for air drying and a recess portion having aninternally threaded portion. The support member has a protrusion having anexternally correspondingly threaded portion arranged to be fitted into saidrecess portion for application of the cartridge onto said support member. Aguiding arrangement is provided for faciiitating said application by mutuallyguiding said recess portion and said protrusion respectively prior to screwingsaid threaded portions together. Hereby the risk of metal chips releasing fromthe threads is reduced in that the protrusion and recess portion will bealigned prior to the connection between the respective threads avoiding anyrelative axial inclination between the recess portion and the protrusion whenscrewing. Further attachment of the cartridge to the support member ishereby facilitated in that it is guided to a correct alignment prior to theengagement between the respective threads.
    According to an embodiment of the arrangement said guiding arrangementcomprises an end guiding portion of said protrusion and/or an end guidingportion of said recess portion. Hereby alignment prior to engagementbetween the respective threads is facilitated.
    According to an embodiment of the arrangement said end guiding portion ofsaid protrusion is arranged to provide a size to be fitted into said internal threaded portion of said recess portion. Hereby attachment is facilitated.
    According to an embodiment of the arrangement said internally threadedportion of said recess portion is arranged to provide a size to be fitted ontosaid end guiding portion of said protrusion. Hereby attachment is facilitated.
    According to an embodiment of the arrangement said guiding arrangementcomprises a sealing member arranged at an end portion of said protrusionbeyond the threaded portion of said protrusion, said guiding arrangementbeing dimensioned such that the intended sealing of said sealing member is obtained prior to said threaded portions coming into contact during saidapplication. Hereby the risk of metal chips releasing from the threads isreduced in that contact between the protrusion and recess portion may beavoided prior to engagement of the respective threads.
    BRIEF DESCRIPTION OF THE DRAWINGS For a better understanding of the present invention reference is made to thefollowing detailed description when read in conjunction with theaccompanying drawings, wherein like reference characters refer to like parts throughout the several views, and in which: Fig. 1 schematically illustrates a side view of a vehicle according to the present invention;Fig. 2 schematically illustrates an air processing system of a vehicle; Fig. 3a schematically illustrates a side view of an air dryer cartridge of an air dryer according to an embodiment of the present invention; Fig. 3b schematically illustrates a plan view of a threaded recess portion ofthe air dryer cartridge in fig. 3a; Fig. 4a schematically illustrates a side view of a support member for an air dryer according to an embodiment of the present invention; Fig. 4b schematically illustrates a plan view of a threaded protrusion of thesupport member in fig. 4a; Fig. 5a schematically illustrates a side view of an air dryer cartridge of an air dryer according to an embodiment of the present invention; Fig. 5b schematically illustrates a plan view of a threaded recess portion ofthe air dryer cartridge in fig. 5a; Fig. 6a schematically illustrates a side view of a support member for an airdryer according to an embodiment of the present invention; and Fig. 6b schematically illustrates a plan view of a threaded protrusion of the support member in fig. 6a.
    DETAILED DESCRIPTION Fig. 1 schematically illustrates a side view of a vehicle 1 according to thepresent invention. The exemplified vehicle 1 is a heavy vehicle in the shapeof a truck. The vehicle according to the present invention could be anyvehicle such as a bus or a car. The vehicle comprises air processing systemhaving an air dryer with an air dryer cartridge and a support member ontowhich the air dryer cartridge is attachable by means of an arrangement according to the present invention.
    Fig. 2 schematically illustrates an air processing system I of a vehicle. The airprocessing system I is configured to receive compressed air A distributed bymeans of a compressor operated by a combustion engine of the vehicle, notshown, or by an electric compressor operated by an energy source such as a battery unit, not shown.
    The air processing system I comprises an air dryer 10 for drying and filteringthe air from particles from e.g. oil from the engine. The air dryer 10 comprisesa desiccant cartridge 20 and a support member 30. The cartridge 20comprises a container portion 22 for air drying and a recess portion 24having an internally threaded portion 24a. The container portion 22 isaccording to an embodiment filled with a desiccant bed of silica gel balls forsaid air drying. The support member 30 has a body portion 32 and aprotrusion 34 having an externally correspondingly threaded portion 34aarranged to be fitted into said recess portion 24 for application of thecartridge 20 onto said support member 30. The support member 30 is according to a variant called air dryer body. The support member 30 alsocomprises to a purge valve 36 configured to exhaust moist collected by thefilter of the air dryer. The recess portion of the cartridge and the protrusion ofthe support member are described in more detail with reference to fig. 3a-b,4a-b, 5a-b and 6a-b.
    The air processing system I comprises a multi circuit protection valve 40connected to the air dryer 10. The multi circuit protection valve 40 isconfigured to distribute the dried air from the air dryer 10 via a distributionblock 50 to circuits of different systems of the vehicle such as brake system and air suspension system.
    The air processing system comprises an electronic control unit 60 for controlling and determining the air pressure.
    The compressed air A from the compressor is thus introduced into the airdryer 10 and is led through the container portion 22 and through the recessportion into the support member 30. The dried air A1 is then led to thedistribution block 50 via the valve 40 for distribution to air systems of the vehicle.
    Fig. 3a schematically illustrates a side view of an air dryer cartridge 120 of anair dryer according to an embodiment of the present invention, and fig. 3bschematically illustrates a plan view of a threaded recess portion 124 of theair dryer cartridge in fig. 3a.
    The cartridge 120 comprises a container portion 122 for drying air. Thecontainer portion 122 is thus arranged to receive air to be led through thecontainer portion where it is dried and filtered.
    The cartridge 120 may have any suitable geometrical configuration. Thecartridge 120 has according to an embodiment a cylindrical configuration.The cartridge 120 comprises an upper side 122a and an underside 122b, theupper side and underside being connected by a wall configuration 122c dividing the upper side 122a and underside 122b forming the containerportion 122.
    The cartridge 120 comprises a recess portion 124. The recess portion runsfrom the underside 122b in direction towards the upper side 122a. Thecontainer portion 122 is configured to surround the recess portion 124. Therecess portion 124 is thus a recess in the container portion 122. The recessportion 124 has an internally treaded portion 124a. The internally treadedportion 124a runs axially from the underside 122b.
    The internally treaded portion 124a has a circular cross section. The recessportion 124 has a circular cross section. The recess portion 124 has an axialextension in the cartridge 120, the recess portion 124 thus surrounding anaxis X1.
    According to an embodiment the recess portion 124 comprises an endguiding portion 124b of a guiding arrangement. The end guiding portion 124bis extending from the internally threaded portion 124a toward an end openingO1 of the recess portion 124 through which air being dried in the container122a is arranged to be led. The opening O1 is thus in the form of a throughhole 01. The end guiding portion 124b is tampering towards the end opening01. The end guiding portion 124b has according to an embodiment a circularcross section.
    The end guiding portion 124b is according to an embodiment threaded. Theend guiding portion 124b has according to an alternative embodiment asubstantially smooth surface.
    According to an alternative embodiment not shown the portion extendingfrom the internally threaded portion is running in a non-tampering extension towards the opening.
    Fig. 4a schematically illustrates a side view of a support member 130 for anair dryer according to an embodiment of the present invention, and fig. 4b schematically illustrates a plan view of a threaded protrusion 134 of thesupport member in fig. 4a.
    The support member 130 comprises a body portion 132 via which the driedair is arranged to be led for distribution to circuits of different systems of thevehicle such as brake system and air suspension system. The body portionmay have any suitable geometrical shape. The body portion 132 has anupper side 132a and an underside 132b.
    The support member 130 comprises a protrusion 134 protruding from thebody portion 132. The protrusion 134 is configured to protrude from the upperside 132a of the body portion 132.
    The protrusion 134 comprises an externally threaded portion 134a. Theexternally threaded portion 134a runs axially from the upper side 132a of thebody portion 132.
    The externally threaded portion 134a has a circular cross section. Theprotrusion 134 has a circular cross section. The protrusion 134 has an axial extension having an axis X2.
    According to an embodiment the protrusion 134 comprises end guidingportion 134b of a guiding arrangement. The end guiding portion 134b isextending from the externally threaded portion 134a toward an end 134c withan end opening 02 of the protrusion 134. The opening 02 is in the form of athrough hole 02 for allowing air into the body portion. The end guidingportion 134b is tampering towards the end opening 02. The end guidingportion 134b has according to an embodiment a circular cross section.
    The end guiding portion 134b is according to an embodiment threaded. Theend guiding portion 134b has according to an alternative embodiment a substantially smooth surface.
    The externally threaded portion 134a of the protrusion 134 is correspondingto the internally threaded portion 124a of the recess portion 124 such that the externally threaded portion 134a fits into the internally threaded portion forapplication of the cartridge 120 onto said support member 130.
    The guiding arrangement comprising the end guiding portion 134b of theprotrusion and/or the end guiding portion 124b of the recess portion 124 isprovided for facilitating said application by mutually guiding said recessportion 124 and said protrusion 134 respectiveiy prior to screwing saidthreaded portions 124a, 134a together. Hereby the risk of metal chipsreleasing from the threads is reduced in that the protrusion and recessportion will be aligned prior to the connection between the respective threadsavoiding any relative axial inclination between the recess portion and theprotrusion when screwing. Further attachment of the cartridge to the supportmember is hereby facilitated in that it is guided to a correct alignment prior to the engagement between the respective threads.
    The end guiding portion 134b of said protrusion 134 is arranged to provide asize to be fitted into said internally threaded portion 124a of said recessportion 124.
    The externally threaded portion 124a of said recess portion 124 is arrangedto provide a size to be fitted onto said end guiding portion 134b of said protrusion 134.
    The externally threaded portion 134a of the protrusion 134 is correspondingto the internally threaded portion 124a of the recess portion 124 such that theexternally threaded portion 134a fits into the internally threaded portion forapplication of the cartridge 120 onto said support member 130.
    Fig. 5a schematically illustrates a side view of an air dryer cartridge 220 of anair dryer according to an embodiment of the present invention, and fig. 5bschematically illustrates a plan view of a threaded recess portion 224 of the air dryer cartridge in fig. 5a.
    The cartridge 220 comprises a container portion 222 for drying air. Thecontainer portion 222 is thus arranged to receive air to be led through thecontainer portion where it is dried and filtered.
    The cartridge 220 may have any suitable geometrical configuration. Thecartridge 220 has according to an embodiment a cylindrical configuration.The cartridge 220 comprises an upper side 222a and an underside 222b, theupper side and underside being connected by a wall configuration 222cdividing the upper side 222a and underside 222b forming the containerportion 222.
    The cartridge 220 comprises a recess portion 224. The recess portion runsfrom the underside 222b in direction towards the upper side 222a. Thecontainer portion 222 is configured to surround the recess portion 224. Therecess portion 224 is thus a recess in the container portion 222. The recessportion 224 has an internally treaded portion 224a. The internally treadedportion 224a runs axially from the underside 222b.
    The internally treaded portion 224a has a circular cross section. The recessportion 224 has a circular cross section. The recess portion 224 has an axialextension in the cartridge 220, the recess portion 224 thus surrounding anaxis X3. The internally threaded portion 224a is extending a distance d1 inthe axial direction of the recess portion 224.
    According to an embodiment the recess portion 224 comprises an endguiding portion 224b of a guiding arrangement. The end guiding portion 224bis extending from the internally threaded portion 224a toward an end opening03 of the recess portion 224 through which air being dried in the container222a is arranged to be led. The opening 03 is thus in the form of a throughhole 03. The end guiding portion 224b is tampering towards the end opening03. The end guiding portion 224b has according to an embodiment a circularcross section. 11 Fig. 6a schematically illustrates a side view of a support member 230 for anair dryer according to an embodiment of the present invention, and fig. 6bschematically illustrates a plan view of a threaded protrusion 234 of thesupport member 230 in fig. 6a.
    The support member 230 comprises a body portion 232 via which the driedair is arranged to be led for distribution to circuits of different systems of thevehicle such as brake system and air suspension system. The body portionmay have any suitable geometrical shape. The body portion 232 has anupper side 232a and an underside 232b.
    The support member 230 comprises a protrusion 234 protruding from thebody portion 232. The protrusion 34 is configured to protrude from the upperside 232a of the body portion 232.
    The protrusion 234 comprises an externally threaded portion 234a. Theexternally threaded portion 234a runs axially from the upper side 232a of thebody portion 232.
    The externally threaded portion 234a has a circular cross section. Theprotrusion 234 has a circular cross section. The protrusion 234 has an axialextension having an axis X4. The externally threaded portion 234a isextending a distance d1 in the axial direction.
    The protrusion 234 comprises an end portion 234c. The guiding arrangementcomprises a sealing member 240 arranged at the end portion 234c of saidprotrusion beyond the externally threaded portion 234a of said protrusion234. The sealing member 240 is arranged to surround the end portion 234c.The sealing member 240 is in the shape of an O-ring. The sealing member240 is according to an embodiment made of a rubber material. The endportion 234c comprises a circumferential groove configured to retain thesealing member 240. The sealing member 240 has an outer diameter beinggreater than the surface immediately above and below the groove of theprotrusion. The distance d2 from the sealing member at end portion 234c of 12 the protrusion to the externally threaded portion 224a is greater than thedistance d1 of the axial extension of the externally threaded portion 224a.Hereby the sealing member will be brought into contact with the end guidingportion 224b of the recess portion 224 prior to the threaded portions 224a,234a being brought into contact for engagement such that the impactbetween the threaded portions 224a, 234a is damped.
    According to an embodiment the protrusion 234 comprises end guidingportion 234b of the guiding arrangement. The end guiding portion 234b isextending from the externally threaded portion 234a toward an end openingO4 of the protrusion 234. The opening O4 is thus in the form of a throughhole O4 for allowing air into the body portion 232. The end guiding portion234b is tampering towards the end opening O4. The end guiding portion234b has according to an embodiment a circular cross section.
    The externally threaded portion 234a of the protrusion 234 is correspondingto the internally threaded portion 224a of the recess portion 224 such that theexternally threaded portion 234a fits into the internally threaded portion forapplication of the cartridge 220 onto said support member 230.
    The guiding arrangement comprising the sealing member 240 is provided forfacilitating said application by mutually guiding said recess portion 224 andsaid protrusion 234 respectively prior to screwing said threaded portions224a, 234a together. The guiding arrangement comprises according to anembodiment the end guiding portion 234b of the protrusion and/or the endguiding portion 224b of the recess portion 224 in order to further facilitate theapplication by assisting in guiding the recess portion 224 and the protrusion respectively prior to screwing.
    The sealing member 240 is configured to keep the recess portion 224 at adistance from the protrusion prior engagement of the respective threadedportions 224a, 234a. 13 The guiding arrangement is dimensioned such that the intended sealing ofsaid sealing member 240 is obtained prior to said threaded portions cominginto contact during said application.
    Hereby the risk of metal chips releasing from the threads is reduced in thatcontact between the protrusion and recess portion may be avoided prior toengagement of the respective threads.
    By means of the sealing member 240 of the guiding arrangement the risk ofmetal chips releasing from the threads is reduced in that contact between theprotrusion and recess portion may be avoided prior to engagement of therespective threads. The protrusion 234 and recess portion 224 will be alignedprior to the connection between the respective threaded portions 224a, 234aavoiding any relative axial inclination between the recess portion and theprotrusion when screwing. Further attachment of the cartridge 220 to thesupport member 230 is hereby facilitated in that it is guided to a correctalignment prior to the engagement between the respective threads.
    The end guiding portion 234b of said protrusion 234 is arranged to provide asize to be fitted into said internally threaded portion 224a of said recessportion 224.
    The externally threaded portion 224a of said recess portion 224 is arrangedto provide a size to be fitted onto said end guiding portion 234b of said protrusion 234.
    The externally threaded portion 234a of the protrusion 234 is correspondingto the internally threaded portion 224a of the recess portion 224 such that theexternally threaded portion 234a fits into the internally threaded portion forapplication of the cartridge 220 onto said support member 230.
    The foregoing description of the preferred embodiments of the presentinvention has been provided for the purposes of illustration and description. ltis not intended to be exhaustive or to limit the invention to the precise forms 14 disclosed. Obviously, many modifications and variations will be apparent topractitioners skilled in the art. The embodiments were chosen and describedin order to best explain the principles of the invention and its practicalapplications, thereby enabling others skilled in the art to understand theinvention for various embodiments and with the various modifications as are suited to the particular use contemplated.
    权利要求:
    Claims (6)
    [1] 1. An arrangement for applying an air dryer cartridge (20; 120; 220) onto asupport member (30; 130; 230), said cartridge comprising a container portion(22; 122; 222) for air drying and a recess portion (24; 124; 224) having aninternally threaded portion (24a; 124a; 224a), said support member having aprotrusion (34; 134; 234) having an externally correspondingly threadedportion (34a; 134a; 234a) arranged to be fitted into said recess portion (24;124; 224) for application of the cartridge (20; 120; 220) onto said supportmember (30; 130; 230), characterized in that: a guiding arrangement (124b;224b; 134b; 234b, 240) being provided for faciiitating said application bymutually guiding said recess portion (24; 124; 224) and said protrusion (34;134; 234) respectively prior to screwing said threaded portions (24a; 124a;224a, 34a; 134a; 234a) together.
    [2] 2. An arrangement according to claim 1, wherein said guiding arrangement(124b; 224b; 134b; 234b) comprises an end guiding portion (134b; 234b) ofsaid protrusion and/or an end guiding portion (124b; 224b) of said recessportion (124; 224).
    [3] 3. An arrangement according to claim 2, wherein said end guiding portion(134b; 234b) of said protrusion (134; 234) is arranged to provide a size to befitted into said internally threaded portion (124a; 224a) of said recess portion(124; 224).
    [4] 4. An arrangement according to claim 2, wherein said end guiding portioninternally threaded portion (124a; 224a) of said recess portion (124; 224) isarranged to provide a size to be fitted onto said end guiding portion (134b;234b) of said protrusion (134; 234).
    [5] 5. An arrangement according to any of claims 1-4, wherein said guidingarrangement (224b, 234b, 240) comprises a sealing member (240) arrangedat an end portion (234c) of said protrusion (234) beyond the threaded portion(234a) of said protrusion (234), said guiding arrangement (224b, 234b, 240) 16 being dimensioned such that the intended sealing of said sealing member(240) is obtained prior to said threaded portions (224a, 234a) coming into contact during said application.
    [6] 6. A vehicle (1) comprising an arrangement according to any of c|aims 1-5.
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    同族专利:
    公开号 | 公开日
    DE102016001326A1|2016-08-25|
    BR102016003515A2|2016-10-11|
    SE539569C2|2017-10-17|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP1655500B1|2004-11-03|2010-09-22|WABCO GmbH|Thread for a threaded connection|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1550203A|SE539569C2|2015-02-23|2015-02-23|Arrangement for applying an air dryer cartridge onto a support member|SE1550203A| SE539569C2|2015-02-23|2015-02-23|Arrangement for applying an air dryer cartridge onto a support member|
    DE102016001326.5A| DE102016001326A1|2015-02-23|2016-02-05|Arrangement for mounting an air dryer cartridge on a support element|
    BR102016003515A| BR102016003515A2|2015-02-23|2016-02-19|arrangement for applying an air dryer cartridge to a support member|
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