CN108005750A - 用于调节或控制流体压力的单元 - Google Patents
用于调节或控制流体压力的单元 Download PDFInfo
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- CN108005750A CN108005750A CN201711064477.6A CN201711064477A CN108005750A CN 108005750 A CN108005750 A CN 108005750A CN 201711064477 A CN201711064477 A CN 201711064477A CN 108005750 A CN108005750 A CN 108005750A
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- switching film
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/04—Control of fluid pressure without auxiliary power
- G05D16/06—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule
- G05D16/063—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane
- G05D16/0633—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane characterised by the properties of the membrane
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/10—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating making use of vibrations, e.g. ultrasonic welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
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- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/22—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded
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- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
- B23K26/24—Seam welding
- B23K26/28—Seam welding of curved planar seams
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- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/32—Bonding taking account of the properties of the material involved
- B23K26/323—Bonding taking account of the properties of the material involved involving parts made of dissimilar metallic material
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- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/32—Bonding taking account of the properties of the material involved
- B23K26/324—Bonding taking account of the properties of the material involved involving non-metallic parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/001—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass valves or valve housings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/02—Crankcase ventilating or breathing by means of additional source of positive or negative pressure
- F01M13/021—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure
- F01M13/022—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure using engine inlet suction
- F01M13/023—Control valves in suction conduit
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/04—Control of fluid pressure without auxiliary power
- G05D16/06—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule
- G05D16/063—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane
- G05D16/0638—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane characterised by the form of the obturator
- G05D16/0641—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane characterised by the form of the obturator the obturator is a membrane
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/04—Control of fluid pressure without auxiliary power
- G05D16/06—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule
- G05D16/063—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane
- G05D16/0644—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting directly on the obturator
- G05D16/0655—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting directly on the obturator using one spring-loaded membrane
- G05D16/0661—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting directly on the obturator using one spring-loaded membrane characterised by the loading mechanisms of the membrane
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/14—Control of fluid pressure with auxiliary non-electric power
- G05D16/16—Control of fluid pressure with auxiliary non-electric power derived from the controlled fluid
- G05D16/163—Control of fluid pressure with auxiliary non-electric power derived from the controlled fluid using membranes within the main valve
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/18—Dissimilar materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/30—Organic material
- B23K2103/42—Plastics
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
- B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
- B29C65/483—Reactive adhesives, e.g. chemically curing adhesives
- B29C65/485—Multi-component adhesives, i.e. chemically curing as a result of the mixing of said multi-components
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
- B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
- B29C66/1312—Single flange to flange joints, the parts to be joined being rigid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
- B29C66/322—Providing cavities in the joined article to collect the burr
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
- B29C66/541—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles a substantially flat extra element being placed between and clamped by the joined hollow-preforms
- B29C66/5412—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles a substantially flat extra element being placed between and clamped by the joined hollow-preforms said substantially flat extra element being flexible, e.g. a membrane
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
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- B29C66/542—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining hollow covers or hollow bottoms to open ends of container bodies
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- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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- F01M13/00—Crankcase ventilating or breathing
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- F01M2013/0016—Breather valves with a membrane
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M2013/0077—Engine parameters used for crankcase breather systems
- F01M2013/0083—Crankcase pressure
Abstract
本发明涉及用于调节或控制流体压力的单元(10),其具有至少一个壳体件(13、14)和与至少一个壳体件连接的切换膜(22),切换膜用于在相对于作用到切换膜上的环境压力的1至250mbar、优选1至100mbar的压力差下切换,并用于调整、释放或截止在用于流体的流入口(28)和流出口(30)之间的流体通流。切换膜由具有氟和碳的聚合物材料、尤其由具有氟和碳的热塑性塑料构成。在此,至少一个壳体件的开口横截面(40)通过切换膜关闭。本发明还涉及一种用于使单元(10)的切换膜与至少一个壳体件以流体密封方式连接的方法,其中,切换膜的沿径向外置的接合区域(42)具有接靠元件(44),接靠元件在至少所述接合面(50、52)的区域中与至少一个壳体件连接。
Description
技术领域
本发明涉及一种用于尤其是针对内燃机的压力调节和/或机动车内燃机曲轴箱的压力调节而调节或控制流体压力的单元,以及一种用于使该单元的切换膜(Schaltfolie)与至少一个壳体件以流体密封方式连接的方法。
背景技术
例如在内燃机的曲轴箱和进气道之间的排气管路中使用压力调节阀。在此涉及使待排气容器中的压力或低压(Unterdruck)不会提高超过一预先确定的值。
在内燃机中出现窜气(Blow-by-Gase),这些窜气通过如下方式产生,即,燃烧后的气体(Verbrennungsgase)在汽缸中经过汽缸活塞进入到曲轴箱中。这些窜气使曲轴箱中的压力升高,其中,会造成油的泄漏和流出。为了避免压力升高并且有利环境地引出窜气,这些窜气从曲轴箱中出来被返回引导到内燃机的空气进气道中。另一方面不应明显低于所给出的低压值,因为否则由于不密封性会抽吸不希望的错误空气到曲轴箱中。
如今使用的压力调节阀中,通常使用由弹性体、经常是氟硅橡胶(FVMQ)制成的、对于本领域技术人员常见概念为“切换叶片(Schaltmembran)”的元件。这些切换叶片基于弹性体的特殊特性是非常柔性的。与施加的压力行为相关地,这些切换叶片打开或关闭压力调节阀中的开口。压力行为通常由压力调节阀的第一腔中施加的压力与第二腔中存在的压力之间的压力差获得。第一腔中的压力可以例如等于大气压力。切换叶片必须对1至250mbar数量级的很小的切换压力作出反应。
内燃机中的窜气由未燃烧的燃料份额、马达油份额和另外的在燃烧时产生的有害物质组成。这些气体侵蚀很多弹性体类型,由此可能出现材料特性的损坏。由这些材料制成的构件变脆、变得多孔和有缝隙。如果切换膜被损坏,那么损害环境的窜气直接进入到环境中,因为该系统不再是密封的。由弹性体制成的切换叶片通常被实施为滚动膜(Rollfolie),以便实现切换叶片的一定的升降(Hub)。滚动区域中的材料通过开滚运动(Abrollbewegung)在同时与窜气接触时被附加地机械负载并因此可能被损坏。
DE 26 29 621 A1公开了一种具有切换叶片的叶片阀,该切换叶片被实施为在它的边缘上在壳体和壳体盖之间被夹入的切换膜,该切换膜通过压力件能够在设置在壳体中的坐面上密封贴靠,其中,切换叶片由弹性小的面对壳体内部的较薄的层、例如耐腐蚀性通流介质的PTFE以及由橡胶弹性材料制成的另一较厚的层制成。这类叶片阀尤其被使用在如下的地方,那里要求与通流介质发生触碰的材料的高耐化学性。因为橡胶弹性材料不满足该要求,但耐化学腐蚀的材料、例如PTFE不具有针对正常功能所需的弹性,所以使用由两层组成的膜。通过橡胶式的厚层,通过压力件所施加的挤靠压力被尽可能均匀地传递到切换膜的与壳体中的坐面共同作用的密封面上。在此,为了关闭两层式切换膜,通过与手轮连接的压力主轴施加多Bar的相对大的切换压力到切换叶片上,以便通过硬的PTFE层来保证所需的密封功能。
发明内容
本发明的任务是提供一种用于在低压力差下进行切换的单元,该单元在运行时在具有腐蚀性介质、尤其是所谓的窜气的腐蚀性介质的内燃机上实现了高使用寿命。
本发明的另一任务是提供一种用于使能切换的关闭元件与所述单元以流体密封方式连接的方法,该单元在运行时在具有腐蚀性介质、尤其是所谓的窜气的腐蚀性介质的内燃机上实现了高使用寿命。
前面提到的任务根据本发明的一方面由一种用于调节或控制流体压力的单元来解决,其具有至少一个壳体件和与该至少一个壳体件连接的切换膜,其中,所述切换膜由具有氟和碳的聚合物膜构成,并且其中,所述至少一个壳体件的开口横截面通过切换膜来关闭。具有氟和碳的切换膜可以尤其由具有氟和碳的、由热塑性塑料制成的膜来构成。
根据本发明的另一方面,该另一任务通过一种用于使单元的切换膜与至少一个壳体件以流体密封方式连接的方法来解决,其中,切换膜具有接靠元件(Anbindungselement),该接靠元件在至少一个接合面的区域中与至少一个壳体件连接,尤其是材料锁合(stoffschlüssig)和/或形状锁合地(formschlüssig)粘接、焊接或挤靠(angepresst)。
本发明的有利的设计方案和优点由另外的权利要求、说明书和附图获得。
提出一种用于调节或控制流体压力的单元,其具有至少一个壳体件和与所述至少一个壳体件连接的切换膜,所述切换膜用于在相对于作用到切换膜上的环境压力的1至250mbar、优选1至100mbar的压力差下进行切换,并用于调整、释放或截止用于流体的流入口与流出口之间的流体通流,其中,所述切换膜由具有氟和碳的聚合物材料、尤其是具有氟和碳的热塑性塑料构成,并且其中,所述至少一个壳体件的开口横截面通过切换膜来关闭。
该单元不仅用于释放或截止通流,而且用于在两个切换状态“释放”或“截止”之间通过与压力差相关地连续改变通流横截面来调整流入口与流出口之间的流体通流。由此可以对通流(Durchfluss)进行节流。
具有氟和碳的聚合物膜、尤其是具有氟和碳的热塑性塑料膜是耐化学腐蚀的并可以切换出膜阀(Folienventil)的很多切换循环(Schaltzyklen)。该单元的长期稳定性被改善。尤其地,具有氟和碳的聚合物可以是PTFE(聚四氟乙烯)。替换地,具有氟和碳的聚合物可以由作为基础材料的PTFE制成,该基础材料具有混入物,尤其是玻璃纤维、玻璃球、石墨和/或碳纤维的混入物,尤其具有直至60%的被混入物质份额;同样地,具有氟和碳的聚合物可以是能热塑性加工的PTFE,其尤其是能够以喷铸过程来加工。优选地,切换膜的厚度最高为0.5mm、优选最高为0.3mm、特别优选最高0.2mm。切换膜可以具有40mm和100mm之间、优选50mm和80mm之间的直径。可以考虑,在相应直径较大的情况下也可以实现在大致0.5mm、例如最高0.5mm至1mm范围内的略微较大厚度的切换膜。
在此,用于内燃机的压力调节和/或内燃机曲轴箱的压力调节的常见单元的由弹性体制成的常见切换叶片通过由具有氟和碳的聚合物、尤其是由具有氟和碳的热塑性塑料制成的切换膜被替换。具有氟和碳的聚合物材料例如PTFE例如可以以烧结过程来制造并接下来被机械地加工。这种切换膜在它的通常形式中是非常硬的并实际上不适用于柔性构件。PTFE具有出色的耐化学性并能够被使用在非常宽的温度范围中,其中,弹性模量向低温去地与弹性体材料相比被非常强地提高。出于该原因,PTFE确切地说不适用于作为切换膜被使用在针对汽车应用要求用于内燃机上的典型地-40°C至+150°C的温度范围内。该缺点在根据本发明的单元中有利地通过由具有氟和碳的聚合物制成的切换膜、尤其是具有氟和碳的热塑性塑料制成的切换膜的有利几何形状和可选地通过极其薄的壁厚被避免。
通过将材料壁厚在切换膜中按照指定能运动的区域中减少到几十分之一毫米,其中,本身按照指定能运动的密封区域以及材料的夹入区域也可以较厚地实施,以及通过不具有滚动区域的切换膜的特别展开的几何形状,该滚动区域否则通常在现有技术中采用,将硬材料带至如下的形状,该硬材料以该形状具有所需的柔性,但是尽管如此还满足了在形成缝隙、拉伸和交变抗弯强度方面的力学要求。通过特殊的几何形状不再发生滚动运动,而是发生弯曲运动,该弯曲运动具有半径改变,该半径改变可以拉伸少地或甚至实际上没有材料拉伸地进行,并且利用该半径改变可以针对根据本发明的单元实现切换膜的升降运动。
切换膜可以具有碟式的扁平本体,尤其是被构造为碟形的扁平本体,其具有围住中央的关闭区域的弯曲区域,其中,弯曲区域在切换所述切换膜时通过拉伸少、也就是说对于实际应用实际无拉伸、尤其是无拉伸的弯曲运动而使关闭区域相对于阀座沿轴向方向、也就是说沿扁平本体法线方向朝向阀座或远离阀座地运动。因为切换膜在该设计方案中不仅可以在小的面区域中,而且可以大面积地基于碟状形状而弯曲(durchbiegen),所以切换膜的各个区域很少或实际上完全不承受拉伸(dehnungsbelastet)。弯曲运动因此经过切换膜的大区域并因此利用小的弹性变形以具有例如小于10%的小拉伸的曲率改变的形式来实施。
切换膜的关闭区域可以中断流入口与流出口之间的流体通流。切换膜例如可以以它的密封区域直接套放在阀座上,以便中断通流。
切换膜为此可以在它的在打开和关闭状态下的对应最大位置之间是能运动的,其方式是,在切换膜的一侧上作为控制压力施加大气压力。有利地,切换膜可以是自调整式的,并且切换膜可以间接地通过该单元一个腔中的大气压力与该单元的另一腔的工作压力之间的压力差来关闭。工作压力例如可以是内燃机曲轴箱中的压力。
有利地,切换膜可以替选地在它的在打开和关闭状态中的对应最大位置之间是能运动的,其方式是,在切换膜的一侧上施加不等于大气压力的控制压力和/或设置用于切换该切换膜的机械式操纵器件。
在此,通过支撑在所述至少一个壳体件上的弹簧元件,将力施加到切换膜上,以便可以适当地设定该单元的调节行为。流出口可以为此在布置在壳体件中的端部上具有阀座,该阀座能够通过切换膜的关闭区域被关闭,由此能够调节从流入口向流出口的流体导出。在此,弹簧元件施加适当的对应力到切换膜上,以便在预期的压力范围中实现该单元的调节行为。在此,切换膜的背离待调节流体的侧面通常被大气压力所加载。
根据本发明,该单元的至少一个壳体件的开口横截面通过切换膜的作用区域被关闭。由此可以有效地调整、释放、截止或节流该单元的通流。切换膜的围住作用区域的边缘区域允许了使由具有氟和碳的聚合物、尤其是由具有氟和碳的热塑性塑料所制成的切换膜以流体密封方式接靠到该单元的壳体上,该壳体可以以有利方式由塑料、例如经玻璃纤维加强的聚酰胺(PA)制成,并且表征了相对于现有技术的另一大优点,其中,不能渗透的或闭合的叶片不要求密封性,而是仅形状锁合地与壳体连接。通过该以流体密封方式的连接,将单元的一区域构造为密封面并因此有利地保证了该单元的例如作为压力调节阀的功能,因为切换膜不仅分别可以以流体密封方式密封一壳体件,其方式是,该切换膜与该壳体件连接,而且可以使两个壳体件的内腔相对彼此密封,如果第一壳体件以第二壳体件、例如以一壳体盖关闭的话。
根据一有利设计方案可以沿径向在外地在至少一个壳体件上设置至少一个环绕的接合面,在该至少一个环绕的接合面上,切换膜与至少一个壳体件连接、尤其是牢固地连接并尤其是牢固且以流体密封方式连接。通过切换膜与沿径向在外环绕的接合面的尤其牢固的连接,切换膜的中央内区域可以整体上沿轴向方向自由运动并因此作为切换膜的密封区域施加所述单元例如作为压力调节阀的实际的切换功能。通过使切换膜以流体密封方式接靠到至少一个壳体件上也可以有效地避免:材料的可能的气体析出(Ausgasungen)会进入到环境中。
根据一有利设计方案,切换膜的沿径向外置的接合区域可以在面对接合面的至少一个侧面上具有接靠元件(Anbindungselement),该接靠元件可以与至少一个壳体件连接,尤其是可以材料锁合和/或形状锁合地粘接、焊接或挤靠。切换膜的接靠元件与壳体件的接合面的尤其材料锁合和/或形状锁合的连接不仅可以保证壳体件开口横截面的以流体密封方式的密封,而且可以保证切换膜针对单元运行期间的可靠功能的牢固且持久的接靠。作为用于将接靠元件连接到壳体件接合面上的粘接剂例如可以使用常见的粘接材料,例如液体硅胶、基于丙烯酸基的粘接材料、蚁酸、两组份粘接剂。替换地可以使用就像激光焊接、超声波焊接、镜面焊接(Spiegelschweißen)那样的焊接方法或类似的方法。
根据一有利设计方案可以由塑料构成接靠元件。有利地,接靠元件可以通过以塑料的喷靠(Anspritzen)或喷铸包覆(Umspritzen)在两侧上围住和/或径向向外围住或关闭切换膜的接合区域。这样,接合区域可以有利地以它的沿径向的外边缘埋入到接靠元件中。以这种方式能够实现切换膜和接靠元件的牢固且持久的连接。替换地可以作为切换膜将能热塑性加工的聚四氟乙烯喷靠到接靠元件上。
根据一有利设计方案,切换膜可以至少在接合区域的区域中具有至少一个活化表面、尤其是至少一个朝向第一壳体件的第一腔指向的活化表面。为了准备以塑料的喷铸包覆可以有利的是,切换膜的表面在该切换膜与塑料出现连接的区域中相应地预处理并活化,以便改变表面张力。在此,这种活化可以适宜地包括例如蚀刻、等离子体处理、力学粗糙化、压制、打孔或类似的适当方法那样的一种或多种方法。由此可以改善塑料和切换膜之间的接触。尤其有利的是,切换膜的就像例如在第一壳体件的第一腔中的情况那样的暴露在流体中的表面经受通过活化的处理。
根据一有利设计方案,所述至少一个壳体件的接合面可以沿纵向方向以自校准方式构造。尤其地,接合面可以向上或向下锥形或曲形(gekrümmt)或波纹形地(gewellt)构造。通过自校准式的接合面可以在连接过程之前和期间利用第一壳体件或切换膜的自动对中来保证另一壳体件以及切换膜的特别良好的接靠。
根据一有利设计方案可以沿径向在至少一个壳体件的接合面内部设置至少一个沿径向环绕的槽,该槽沿径向在内通过用于在横向于开口横截面沿轴向运动时支撑切换膜的边缘来限界,其中,尤其可以设置具有一边缘、尤其是一开滚边缘的两个沿轴向相对置的和/或沿径向错开的槽。通过该边缘上的开滚半径可以有利地支持切换膜以它的作用区域在实施压力调节阀中的功能时的动态运动并同时实现保护以防由于切换膜运动造成的损坏。在此,切换膜在它的切换运动期间总是贴靠在至少一个边缘上,但是优选同时贴靠在两个边缘上。为了防止切换膜在接合过程期间例如由于切换膜通过边缘的不允许的挤压而被损坏,可以沿径向错开地布置这些边缘。因此,通过所述切换膜同时贴靠在两个边缘上的方式,接靠的实现更简单。边界面上向一棱边的运动于是可以被排除。该边缘可以针对膜运动进行优化,从而使得切换膜在运行中很大程度上不受通过边缘的损坏。也可行的是,切换膜的预紧通过这些边缘被设定。
根据一有利的设计方案可以设置具有第一壳体件和第二壳体件的壳体并通过切换膜使第一腔与第二腔以流体密封方式分开。因此,该单元的第二腔可以是能以大气压力加载的。为了该单元的一有效调节行为应当可以使切换膜尽可能自由运动,因此通过切换膜与待调节流体处于其中的第一腔分开的第二腔适宜地与环境区域、即大气压力连接。
根据一有利设计方案,具有氟和碳的聚合物材料可以是聚四氟乙烯或具有混入物的聚四氟乙烯或能热塑性加工的聚四氟乙烯。
按照本发明的另一方面提出一种用于使单元的切换膜与壳体的至少一个壳体件以流体密封方式连接的方法,其中,所述切换膜由具有氟和碳的聚合物材料、尤其是由具有氟和碳的热塑性塑料构成,并且其中,切换膜的沿径向外置的接合区域在面对所述至少一个壳体件的接合面的至少一个侧面上具有接靠元件,该接靠元件在至少所述接合面的区域中与所述至少一个壳体件连接,尤其是材料锁合和/或形状锁合地粘接、焊接或挤靠。在此,该方法包括将接靠元件安置在切换膜的接合区域的区域中,随后切换膜以接靠元件套放到所述至少一个壳体件的接合面上并与该壳体件连接。在切换膜的接靠元件与壳体件挤压之后,因此可以实现切换膜到壳体件上的持久且以流体密封方式的接靠进而实现壳体件开口横截面的以流体密封方式的关闭。
根据一有利设计方案可以由塑料构成接靠元件并且有利地通过喷铸包覆切换膜、尤其是塑料喷铸包覆来构成。在此适宜地,接靠元件可以在两侧上围住和/或沿径向向外围住接合区域地构造。因此,接合区域可以有利地以它的沿径向的外边缘埋入到接靠元件中。以这种方式能够实现切换膜和接靠元件的牢固且持久的连接。
根据一替换有利设计方案可以作为切换膜将能热塑性加工的聚四氟乙烯喷靠到接靠元件上。因此也能够有利地实现切换膜和接靠元件的牢固且持久的连接。
根据一有利设计方案,切换膜的接合区域可以通过蚀刻、等离子体处理、力学粗糙化、压制、打孔这些方法中的至少一种方法来预处理。为了准备塑料喷铸包覆可以有利的是,切换膜的表面在该切换膜与塑料出现连接的区域中相应地预处理并活化,这点能够利用已提到的方法中的一种方法有利地实现。由此可以改变表面张力,由此可以明显改善塑料和切换膜之间的接触。
有利地可以在将切换膜以接靠元件在接合面上套放到至少第一壳体件上之后将第二壳体件套放到切换膜上并由此构成所述壳体。在此,第二壳体件适宜地同样可以与切换膜的接靠元件和/或第一壳体件粘接或焊接。替换地也可以考虑,可以由塑料、例如经玻璃纤维加强的聚酰胺(PA)构成的两个壳体件沿径向在切换膜外部被焊接。
适宜地可以在壳体关闭时在接合面区域中挤压切换膜的接靠元件。通过该挤压可以例如获得所述连接的更大的最终强度。由此也可以有利地改善以流体密封方式的连接。
有利地,切换膜可以通过至少一个沿径向在接合面内部在至少一个壳体件中沿径向环绕的槽沿轴向支撑,该槽沿径向在内地通过一边缘、尤其是开滚边缘来限界,其用于切换膜在横向于它的横截面沿轴向运动时的支撑。由此可以有利地支持切换膜在实施压力调节阀中的功能时的动态运动并同时实现保护以防由于切换膜运动造成的损坏。在此,切换膜在它的切换运动期间总是贴靠在至少一个边缘上,但是优选同时贴靠在两个边缘上。为了防止切换膜在接合过程期间例如由于切换膜通过边缘的不允许的挤压而被损坏,可以沿径向错开地布置这些边缘。因此,通过所述切换膜同时贴靠在两个边缘上的方式,接靠的实现更简单。边界面上向一棱边的运动于是可以被排除。该边缘可以针对膜运动进行优化,从而使得切换膜在运行中不受通过边缘的损坏。
有利地可以使切换膜进一步通过具有边缘的布置在壳体中的两个槽沿轴向支撑,所述边缘彼此相对置或沿径向彼此错开地布置。在该另外的实施方式中,壳体件的边缘可以相对彼此推移,以便在接合过程中不使切换膜在该区域中被挤坏(quetschen)。也可行的是,切换膜的预紧通过这些边缘被设定。
适宜地可以将壳体也在沿径向的外周边上在切换膜以接靠元件施加之后借助于粘接或焊接来关闭。附加地由此可以使开口横截面通过切换膜以流体密封方式关闭的壳体件与另一壳体件、例如一盖牢固粘接或焊接,或所述壳体件可以粘靠或焊靠到另一构件上。由此可以实现该单元的为了例如作为压力调节阀的可靠运行而进一步以流体密封方式的关闭。在此,接合面为了焊接或粘接可以适宜地这样构造,使得由于焊接或粘接过程的焊珠或粘接珠不会不利地影响壳体件的连接以及切换膜与壳体件的连接。
按照本发明的另一方面使用根据本发明的单元,用于内燃机的压力调节和/或用于内燃机曲轴箱的压力调节。
附图说明
其他优点由随后的附图描述中获得。在这些附图中示出了本发明的实施例。附图、说明书和权利要求包含大量的特征组合。本领域技术人员也可以适宜地单独考虑这些特征以及总结出有意义的其它组合。
示例性地:
图1在截面图中示出了按照本发明一实施例的具有切换膜的单元,该切换膜由具有氟和碳的聚合物制成;
图2在截面图中示出了按照本发明另一实施例的具有切换膜的单元;
图3在截面图中示出了按照本发明的下一实施例的具有切换膜的塑料喷铸包覆部作为接靠元件的单元;
图4在截面图中示出了来自图3的单元的一变型方案的接合区域的一简化截段,没有第二壳体件;以及
图5在截面图中示出了来自图3的单元的接合区域的一截段。
具体实施方式
在这些附图中,相同或相同形式的部件以相同的附图标记来标示。这些附图仅仅示出了示例并且不能被理解为限制。
图1在截面图中示出了按照本发明一实施例的具有切换膜22的用于调节或控制流体压力的单元10,该切换膜由具有氟和碳的聚合物制成。具有氟和碳的聚合物材料在此例如是聚四氟乙烯或具有混入物的聚四氟乙烯或能热塑性加工、尤其是能以喷铸过程加工的聚四氟乙烯。单元10用于调节或控制流体压力,尤其是用于内燃机压力调节的应用和/或内燃机曲轴箱的压力调节的应用。单元10具有壳体12,该壳体具有第一壳体件13和第二壳体件14,所述壳体盖,其中,所述第一壳体件13具有用于流体的流入口28和流出口30。切换膜22由具有氟和碳的聚合物膜、例如PTFE来构成并且以一接合区域42在第一壳体件13和第二壳体件14之间夹入。
两个壳体件13、14的开口横截面40通过切换膜22以该切换膜的作用区域以流体密封方式关闭。沿径向在外地,在两个壳体件13、14上以流体密封方式设置两个环绕的接合面50、52,在所述接合面上,切换膜22与两个壳体件13、14连接、尤其是牢固且以流体密封方式连接。因此,在所示实施例中,切换膜22的沿径向外置的接合区域42在面对一接合面50、52的至少一个侧面上具有薄的接靠元件44,该接靠元件与这些壳体件13、14中的至少一个壳体件连接,尤其是材料锁合地粘接、焊接或挤靠。接靠元件44可以由塑料构成并尤其通过喷靠到接合区域42上来构成。替换地也可以将切换膜22喷靠到接靠元件44上。尤其地,接靠元件44可以在两侧上围住和/或沿径向向外围住接合区域42地构造。在图1和2中的实施例中示意性实施接靠元件44。从图3至5中能够获悉细节。
切换膜22以流体密封方式使单元10的第一腔36与第二腔38分开。在第一腔36和第二腔38之间存在压力差,其中,第二腔38与环境、即大气压力连接(没有示出)。切换膜22可以随着1至250mbar、优选1至100mbar的压力差而发生运动并用于使流入口28与流出口30之间的流体通流释放或截止。单元10的流入口28在使用情况下例如与内燃机的曲轴箱在流体方面(fluidmäßig)连接,而流出口30与进气道在流体方面连接。切换膜22具有碟状的扁平本体16,其具有围住中央的关闭区域24的波纹形的弯曲区域18。弯曲区域18在切换所述切换膜22时通过关闭区域24相对于阀座32的拉伸少、尤其是无拉伸的弯曲运动而沿轴向方向L朝向阀座32或远离阀座32运动。切换膜22为此至少在弯曲区域18中具有最高0.5mm、优选最高0.3mm、特别优选最高0.2mm的厚度。在此,切换膜22的直径在40mm和100mm之间、优选在50mm和80mm之间。
弯曲区域18沿径向方向波纹形绕关闭区域24延伸,其中,切换膜22的一扁平侧上的凹陷部对应于另一扁平侧上的突起部。当关闭区域套放在阀座32上时,关闭区域24关闭阀座32。设置有弹簧元件26,该弹簧元件被支撑在第一壳体件13上,该弹簧元件施加力到切换膜22的关闭区域24上。弹簧元件26在此通过环形构造的碟34支撑在关闭区域24上。关闭区域24被构造为切换膜22的罐形的外翻部20,其中,碟34以支撑环形式环形地围住该外翻部。弹簧元件26替换地可以在没有碟34的情况下作用在切换膜22上并在此在该弹簧元件的面对外翻部20的端面上被喷铸包覆,以保护切换膜22,从而使得该喷铸包覆部可以代替碟34。
沿径向在两个壳体件13、14的接合面50、52内部分别设置一沿径向环绕的槽54、56,所述槽沿径向在内地通过一边缘58、60来限界,该边缘用于在横向于开口横截面40沿轴向运动时支撑所述切换膜22。两个槽54、56彼此沿轴向相对置。通过切换膜22套放在倒圆的边缘58、60上并在其间被夹入,切换膜22在它的作用区域基于单元10的调节功能而沿轴向运动时防止由于尖锐棱边的过度磨损和损坏。
图2在截面图中示出了按照本发明另一实施例的具有切换膜22的单元10。单元10的本质结构基本上相应于图1中的实施例。但是,两个壳体部件13、14的接合面50、52沿纵向方向L锥形地构造。由此可以使切换膜22在该切换膜22接合到第一壳体件13上时并在通过套置第二壳体件14组装壳体12时被有利地对中。在此,与槽沿轴向相对置布置的图1中的实施例相反,槽54、56以它们的边缘58、60沿径向错开地布置,这点也可以在切换膜22沿轴向运动时针对切换膜22的支撑起到利的作用。
图3中在截面图中示出了按照本发明的下一实施例的具有切换膜22的塑料喷铸包覆部作为接靠元件44的单元10。弹簧元件26在此鉴于概览性而被去除。在图4和5中分别示出了具有接合区域42的来自图3的单元10的壳体12的一简化截段或壳体12的一截段。
与图1和2中的两个实施例相反,图3中的单元10中没有设置具有边缘58、60的槽54、56,边缘用于在弯曲运动时使切换膜22卸载。切换膜22利用接靠元件44在两个壳体件13、14之间夹入并可以在此材料锁合地粘接或焊接。在此可以使用就像激光焊接、超声波焊接、镜面焊接(Spiegelschweißen)那样的焊接方法或类似的方法。
切换膜22的沿径向外置的接合区域42具有围住接合区域42的接靠元件44,该接靠元件在接合区域50、52的区域中与两个壳体件13、14材料锁合地和/或形状锁合地连接、尤其是可以粘接或焊接。在此,接靠元件44安置在切换膜22的接合区域42的区域中。然后,切换膜22以接靠元件44被套放到壳体件13、14中的一个壳体件的接合面50、52上并将接靠元件44与壳体件13、14连接。之后可以套放这些壳体件13、14中的第二壳体件并使其与接靠元件44材料锁合地连接。接靠元件有利地通过接合区域42的塑料喷铸包覆部来产生并可以在两个侧面上并在沿径向的外侧面上围住接合区域42。作为粘接剂例如可以使用常见的粘接材料、例如液体硅胶、基于丙烯酸基的粘接材料、两组份粘接剂。作为焊接方法例如可以使用激光焊接或超声波焊接。在此有利地,切换膜22可以至少在接合区域42的区域中具有表面张力被改变的活化表面,以便获得到塑料喷铸包覆部上的良好接靠,其中,接合区域42例如通过蚀刻、等离子体处理、力学粗糙化、压制、打孔这些方法中的一种方法来预处理。壳体12附加地可以在它的沿径向的外周边上在切换膜22插入之后通过接靠元件44借助于焊接来关闭。
在图4中的单元10的接合区域42的该简化截段中能够看到,如何将切换膜22通过塑料喷铸包覆埋入到接靠元件44中并以接靠元件44扁平地套放到壳体件13的接合面50上。因此可以将接靠元件44粘靠到接合面50上或与接合面50焊接。在该实施例中没有设置第二壳体件,该壳体件遮盖切换膜22。
图5中示出了在将第二壳体件14套放到接靠元件44上之后如何能够将壳体12关闭,其方式是,壳体件14可以以它的接合面52套放到接靠元件44上并与该接靠元件材料锁合连接、尤其是粘接或焊接。因此可以以流体密封方式关闭所述壳体12。
Claims (15)
1.用于调节或控制流体压力的单元(10),其具有至少一个壳体件(13、14)和与所述至少一个壳体件(13、14)连接的切换膜(22),所述切换膜用于在相对于作用到所述切换膜(22)上的环境压力的1至250mbar、优选1至100mbar的压力差下进行切换,并用于调整、释放或截止在用于所述流体的流入口(28)和流出口(30)之间的流体通流,其中,所述切换膜(22)由具有氟和碳的聚合物材料、尤其由具有氟和碳的热塑性塑料构成,其中,所述至少一个壳体件(13、14)的开口横截面(40)通过所述切换膜(22)关闭。
2.根据权利要求1所述的单元,其中,沿径向在外地在所述至少一个壳体件(13、14)上设置至少一个环绕的接合面(50、52),在所述至少一个环绕的接合面上,所述切换膜(22)与所述至少一个壳体件(13、14)连接,尤其是牢固地连接,尤其是牢固并以流体密封方式连接。
3.根据权利要求1或2所述的单元,其中,所述切换膜(22)的沿径向外置的接合区域(42)在面对接合面(50、52)的至少一个侧面上具有接靠元件(44),所述接靠元件与所述至少一个壳体件(13、14)连接,尤其是材料锁合地和/或形状锁合地粘接、焊接或挤靠。
4.根据权利要求3所述的单元,其中,所述接靠元件(44)由塑料构成和/或通过喷靠到所述接合区域(42)上来构成。
5.根据权利要求3或4所述的单元,其中,所述接靠元件(44)在两侧上围住和/或沿径向向外围住所述接合区域(42)地构造。
6.根据前述权利要求中任一项所述的单元,其中,所述切换膜(22)至少在所述接合区域(42)的区域中具有至少一个活化表面、尤其是至少一个朝向所述第一壳体件(13)的第一腔(36)指向的活化表面。
7.根据前述权利要求中任一项所述的单元,其中,所述至少一个壳体件(13、14)的所述接合面(50、52)沿纵向方向(L)自校准式地,尤其锥形、曲形或波纹形地构造。
8.根据前述权利要求中任一项所述的单元,其中,沿径向在所述至少一个壳体件(13、14)的所述接合面(50、52)内部设置至少一个沿径向环绕的槽(54、56),所述至少一个沿径向环绕的槽沿径向在内地通过一边缘(58、60)来限界,该边缘用于所述切换膜(22)在横向于所述开口横截面(40)沿轴向运动时的支撑,其中,尤其设置具有一边缘(58、60)的沿轴向相对置和/或沿径向错开的两个槽(54、56)。
9.根据前述权利要求中任一项所述的单元,其中,设置具有所述第一壳体件(13)和第二壳体件(14)的壳体(12)并且通过所述切换膜(22)使所述第一腔(36)与第二腔(38)以流体密封方式分开。
10.根据前述权利要求中任一项所述的单元,其中,所述具有氟和碳的聚合物材料是聚四氟乙烯或具有混入物的聚四氟乙烯或能热塑性加工的聚四氟乙烯。
11.用于使单元(10)的切换膜(22)与壳体(12)的至少一个壳体件(13、14)以流体密封方式连接的方法,其中,所述切换膜(22)由具有氟和碳的聚合物材料、尤其是由具有氟和碳的热塑性塑料构成,并且其中,所述切换膜(22)的沿径向外置的接合区域(42)在面对所述至少一个壳体件(13、14)的接合面(50、52)的至少一个侧面上具有接靠元件(44),所述接靠元件在至少所述接合面(50、52)的区域中与所述至少一个壳体件(13、14)连接,尤其是材料锁合和/或形状锁合地粘接、焊接或挤靠,所述方法包括:
- 将所述接靠元件(44)安置在所述切换膜(22)的所述接合区域(42)的区域中;
- 所述切换膜(22)以所述接靠元件(44)被套放到所述至少一个壳体件(13、14)的所述接合面(50、52)上并与所述壳体件(13、14)连接。
12.根据权利要求11所述的方法,其中,
所述接靠元件(44)通过喷铸包覆所述切换膜、尤其是塑料喷铸包覆来构成。
13.根据权利要求12所述的方法,其中,作为切换膜(22)将能热塑性加工的聚四氟乙烯喷靠到所述接靠元件(44)上。
14.根据权利要求11至13中任一项所述的方法,其中,所述切换膜(22)的所述接合区域(42)通过蚀刻、等离子体处理、力学粗糙化、压制、打孔这些方法中的至少一种方法来预处理。
15.根据权利要求1至10中任一项所述的单元(10)的用于内燃机的压力调节和/或内燃机曲轴箱的压力调节的应用。
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CN108005749A (zh) * | 2016-11-02 | 2018-05-08 | 曼·胡默尔有限公司 | 用于调节或控制流体压力的单元 |
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DE102015005692A1 (de) * | 2015-05-06 | 2016-11-10 | Mann + Hummel Gmbh | Druckregelventil |
CN114521187A (zh) * | 2019-09-25 | 2022-05-20 | 花王株式会社 | 分配器 |
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US11409310B2 (en) | 2022-08-09 |
US20210255647A1 (en) | 2021-08-19 |
DE102017010071A1 (de) | 2018-05-03 |
CN108005750B (zh) | 2022-08-16 |
US11169549B2 (en) | 2021-11-09 |
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