WO2018153779A1 - Polkappe mit druckanschlusselement für druckbehälter - Google Patents
Polkappe mit druckanschlusselement für druckbehälter Download PDFInfo
- Publication number
- WO2018153779A1 WO2018153779A1 PCT/EP2018/053860 EP2018053860W WO2018153779A1 WO 2018153779 A1 WO2018153779 A1 WO 2018153779A1 EP 2018053860 W EP2018053860 W EP 2018053860W WO 2018153779 A1 WO2018153779 A1 WO 2018153779A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pressure
- passage
- sealing cone
- neck
- pressure vessel
- 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.)
- Ceased
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J13/00—Covers or similar closure members for pressure vessels in general
- F16J13/02—Detachable closure members; Means for tightening closures
- F16J13/12—Detachable closure members; Means for tightening closures attached by wedging action by means of screw-thread, interrupted screw-thread, bayonet closure, or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
- F17C1/16—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge constructed of plastics materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/06—Closures, e.g. cap, breakable member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/01—Shape
- F17C2201/0104—Shape cylindrical
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
- F17C2203/0634—Materials for walls or layers thereof
- F17C2203/0636—Metals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
- F17C2203/0634—Materials for walls or layers thereof
- F17C2203/0658—Synthetics
- F17C2203/066—Plastics
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
- F17C2203/0634—Materials for walls or layers thereof
- F17C2203/0658—Synthetics
- F17C2203/0663—Synthetics in form of fibers or filaments
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0305—Bosses, e.g. boss collars
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0311—Closure means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2209/00—Vessel construction, in particular methods of manufacturing
- F17C2209/21—Shaping processes
- F17C2209/2109—Moulding
- F17C2209/2118—Moulding by injection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2209/00—Vessel construction, in particular methods of manufacturing
- F17C2209/22—Assembling processes
- F17C2209/221—Welding
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
Definitions
- the invention relates to a pole cap made of a Kunststoffmatehal for
- CFRP pressure vessels have a cylindrical central portion on which are on both sides pole caps for closing the middle part and are made for example by a fiber winding process.
- a liner inner container for the pressure vessel
- This liner is then overcoated with Faserverbundmateriai for the production of the pressure vessel for reinforcement, so that the resulting pressure vessel maintains its stability.
- the pressure vessels Type 3 use a metallic liner made of aluminum or steel, while Type 4 pressure vessels use a plastic liner. The latter pressure vessels are up to the technical requirements and can be produced cost-effectively. Plastic!
- Liner connection is available, which is easy to assemble and remains leaktightly connected to the liner throughout its service life.
- Inner container is available, which is easy to assemble and remains leaktightly connected to the inner container (liner) throughout its life.
- Closure of the pressure vessel, an outer side for overwinding with a fiber composite material after closure of the pressure vessel and a neck-shaped outwardly projecting outwardly open passage having an inner contour, each made of plastic material, and a connected to the implementation of the closure of the implementation pressure connection element comprises, said Pressure connection element comprises a sealing cone made of metal with a first section projecting outwardly through the passage and with a second section tapering conically in the direction of the first section at least in the region of the passage, which in a second section is arranged on the first section by means of a fixing element pressure-tight press fit is held in the inner contour.
- Pressure vessels in the context of the invention are all suitable containers for
- these pressure vessel are cylindrical with outwardly curved statements on both sides of the cylindrical central portion. These connections are referred to as pole caps and are used for pressure-tight closure of the middle part.
- the inside of the polar cap is part of the inner wall of the pressure vessel facing the filling (fluid or gas) of the pressure vessel in the later pressure vessel. Accordingly, the outside is the opposite side of the pole cap. To reinforce the pressure vessel, this outer side is wrapped with a fiber composite material, which at the same time the outside of the
- Pressure vessel can form. After the welding of the pole caps with the central part of an inner container is made, the pressure tightness depends only on the pressure tightness of the pole cap with the pressure connection element, in particular the sealing cone. With the inventive polar cap this pole cap is designed pressure-tight and thus designed the entire inner container pressure-tight.
- Pressure vessel comprise a reversibly closable opening. Such an opening is arranged in pressure containers in one of the pole cap via a neck-shaped outwardly projecting outwardly open passage into which a pressure connection element for closing the passage is arranged with an inner contour.
- the conical contour of the sealing body makes it possible for a sealing cone inserted into the bushing from the inside of the pole cap to press-fit in the inner contour of the neck-shaped bushing.
- the sealing cone for example, in inner contours of the neck-shaped passage, which are not adapted to the cone shape of the second portion of the sealing cone, the material of the polar cap in the region of Displacing the inner contour so that the inner contour conforms to the cone-shaped contour of the second section.
- the sealing cone then forms with other components, the pressure connection element, via which the filling in the
- Pressure vessel can be inserted or omitted from this.
- fixative for example, a tensile nut or a in
- Sealing cone snapping spring ring causes the sealing cone is pulled into the implementation (pressed) or in the
- pulled in (pressed) position remains and thus rests with its outer side in the inner contour of the implementation that can escape through the implementation no standing under pressure filling of the pressure vessel.
- the Polkappe itself consists (as well as the remaining inner container) for weight and cost reasons while plastic material. Plastic material may deform due to the pressure prevailing in the pressure vessel over the operating time, so that leakage could occur between the connector and the polar cap.
- the pole cap according to the invention prevents by its construction with specially designed implementation and accordingly
- Inner contour of the implementation results in a narrowing gap in the outward direction, which causes the sealing of the pressure port.
- the plastic material would have to flow, wanted it under the Flow away surface pressure of the sealing cone. But this would only be possible by further increasing the surface pressure, which does not come about because the
- the sealing effect of the sealing cone is further increased at high pressure in the pressure vessel.
- the sealing cone is pressed from the direction of the pressure vessel interior in the neck opening of the implementation, which increases the sealing effect.
- the fixing means on the other side of the throat opening of the implementation of the sealing cone is pulled until it has reached the end position torque-controlled or until it engages in the fixing means and is thus held in its intended sealing position.
- the difference of the areas multiplied by the gas pressure generates a force proportional to the pressure in the direction of the sealing effect, thus the gas pressure produces a higher sealing effect at a higher pressure.
- the pole cap according to the invention with pressure connection element is thus redundant against leaks.
- the inner contour tapers at least in one
- the cone-shaped inner contour is adapted to the cone-shaped second portion.
- the adhesion between the sealing cone and inner contour is improved, which improves the sealing effect and the seat of the sealing cone in the neck-shaped implementation.
- the cone-shaped inner contour is matched to fit the cone shape of the second portion of the sealing cone. This customized cone-shaped
- Inner contour makes it possible that a correspondingly adapted to the shape of this inner contour sealing cone can be inserted from the inside of the pole cap in the implementation, resulting in a further improvement.
- the cone-shaped inner contour of the extends
- a correspondingly adapted to the extent of the inner contour formed sealing cone thus has a larger contact surface with the inner contour, which distributes the pressure force of the sealing cone on the inner contour over a larger area and thus the surface pressure per unit area and thus the risk of flow of the plastic material of the neck-shaped implementation yet further reduced.
- the sealing cone protrudes with its second
- the tension nut can be screwed from the outside to the sealing cone, which facilitates the installation of the sealing cone in the neck-shaped implementation.
- the pole cap further comprises
- Attachment element for placement on the neck-shaped passage, wherein the attachment element comprises a first contact region, which extends in the radial direction from the necked passage along the outside and is adapted to the contour of the outside and provided for the over-winding with the fiber composite material, and a second contact region whose inner shape is adapted to an outer shape of the neck-shaped passage so that the second contact portion prevents deformation of the outer shape of the neck-shaped passage in the radial direction.
- the polar cap with Attachment element is wrapped after assembly of the attachment element on the neck-shaped implementation in the same manner with fiber composite material as the pole cap according to the invention without such attachment element.
- the radial direction here denotes the direction away from the center of the implementation direction.
- the pole caps are also configured circular in shape from its periphery.
- the connecting element is arranged in the center of the pole cap, whereby the radial direction coincides with the radial direction to the axis of symmetry (cylinder axis) of the pressure vessel.
- the first contact region of the attachment element can be placed on the outside, which is particularly designed in the contact area for the attachment element, for example, the outside of a
- the pole cap with attachment element has the same outer shape as a pole cap, which is not intended for additional assembly with a attachment element.
- This also softer plastics such as polyethylene can be used as a material for the pole caps and the inner container of the pressure vessel, because in the
- the outer shape of the passage at the neck end comprises a peripheral edge, preferably, the edge is a planar surface perpendicular to the longitudinal direction of the passage or the subsequent pressure vessel.
- the second contact region covers the peripheral edge at least partially, so that a deformation of the outer shape of the implementation is additionally prevented also perpendicular to the radial direction.
- the second contact region further extends along the first portion of the sealing cone, wherein the first portion of a suitably arranged and surrounding the first portion seal for pressure-tight sealing against the second contact region of
- Attachment comprises.
- the fixing means arranged externally on the first section is a tension nut screwed onto the first section, with which the second section for the pressure-tight closure in the
- the pull nut can be attached via a thread directly or indirectly on the sealing cone on the one hand and on the other hand pulls directly or indirectly on the neck-shaped passage that the sealing cone to the
- Inner contour of the implementation is pressed.
- the attachment element further comprises a third region in the longitudinal direction above the second contact region, which comprises an inner side facing the first portion, wherein the inner side of the third region is arranged so that a circumferential gap between the inner side and the first portion of Sealing cone is formed in the radial direction, wherein the gap is provided and configured for receiving the tension nut.
- the longitudinal direction here refers to the direction along the passage from the inside to the outside or the direction along the cylinder axis of the later pressure vessel.
- the third area protects the tension nut from external mechanical stress.
- the second contact region forms a
- the attachment element is attached by means of the tension nut on the pressing on the neck-shaped implementation support area on the pole cap.
- the attachment element can also be easily mounted on the pole cap and on its form-supporting effect on the neck-shaped implementation of.
- the inner shape of the second contact region of the attachment element extends along the first portion of the
- Sealing cone and has in a region opposite the first portion a recess in which the externally arranged on the first portion fixing means is arranged in the form of an elastic spring ring, and the first portion of the sealing cone adapted to the spring ring ring recess on a matched thereto Position along the longitudinal axis comprises, in which the spring ring engages after pressing in of the sealing cone in the implementation and thus fixes the sealing cone in the pressure-tight press fit in the inner contour.
- the fixation of the sealing cone by means of spring ring in a position defined by spring ring and ring recess allows easy and quick production of a press fit, which represents a pressure-tight fit of the sealing cone in the implementation.
- the spring ring can be made of conventional materials for spring rings with conventional methods, whereby the spring ring has its usual elasticity.
- the attachment element is screwed with its second contact area on the outer shape of the neck-shaped passage, for example by means of a self-tapping thread. As a result, the attachment element can be attached to the neck-shaped pole cap independently of a later-screwed-on pull nut. The possibly additional
- Attachment of the attachment element via screw connection and pressure by means of a pull nut increases the seating strength of the attachment element on the neck-shaped passage of the pole cap.
- the attachment element and the neck-shaped passage are designed such that the attachment element is screwed onto the neck-shaped passageway from above, until the first contact region contacts directly on the outside.
- the attachment is securely positioned on the outside and it is easy for the fitter to see if the positioning is correct.
- the plastic material of at least the neck-shaped passage of the pole cap is a soft plastic material and the second contact region of the attachment element is threaded to the
- the invention further relates to a fiber-reinforced pressure vessel comprising an inner container made of a plastic material comprising a cylindrical central part and two the middle part in each case on both sides closing pole caps and one wound on the inner container
- one of the pole caps is a polar cap according to the invention. So that a filling can be stored under pressure in this pressure vessel, the cylindrical surfaces of the middle part are closed with the pole caps.
- a stress ratio of 2: 1 between circumferential stress (stress on the inner wall of the cylindrical center) and axial stress (stress on the lid surfaces) would be present, which would stress the edge area between middle part and pole caps.
- Geometriebetrachtungen apply to all pressure vessels, including those from an inner container and a wound over the inner container outer layer to reinforce the inner container, for example, with an inner container made of plastic.
- Such containers have on the one hand a very low weight, which is important for applications in means of transport, for example, and on the other hand fillings such as hydrogen can be stored under high pressure loss, since plastic has a very low hydrogen permeability and the required strength through the outer layer of
- the pressure vessel according to the invention thus comprises an inner container with pole caps, preferably as a dome-like polar caps with a shape deviating from a hemisphere, in the lid edge region adjacent to the cylindrical central part of the
- Inner container a greater curvature against a hemisphere surface are formed, while the central portion of the pole caps has a lower curvature against a hemisphere surface.
- dome-shaped pole cap can the stiffness and load jump and the stress caused thereby between the circumferential direction (middle part) and the axial direction (pole cap areas) by axially on the pole cap in the
- Isotensoid is called.
- An isotensoid designates a shape that causes a constant tension in the fibers in all points of the fiber flow in a wound on an outer layer of a fiber composite material.
- a fiber composite material generally consists of two main components, here fibers, embedded in a matrix material which establishes the firm bond between the fibers.
- the fiber composite material can be wound from one or more fibers, wherein the fiber (s) are wound in close contact with each other in contact with each other. This creates a
- the fiber layers of first and / or further fibers, for example second fibers each comprise a plurality of fiber layers.
- Fiber composite material could provide superior properties, such as a higher strength than either of the two individual components involved.
- the reinforcing effect of the fibers in the fiber direction occurs when the
- Elongation modulus of the fiber in the longitudinal direction is greater than the modulus of elasticity of the matrix material, if the elongation at break of the matrix material is greater than the breaking elongation of the fibers and if the breaking strength of the fibers is greater than the breaking strength of the matrix material.
- fibers fibers of all kinds for example, glass fibers, carbon fibers, ceramic fibers, steel fibers, natural fibers or synthetic fibers may be used.
- duromers, elastomers or thermoplastics can be used as matrix materials.
- the material properties of the fibers and matrix materials are known to those skilled in the art so that those skilled in the art can choose a suitable combination of fibers and matrix materials for making the fiber composite material for the particular application. In this case, individual fiber layers in the fiber composite region can be a single fiber or several or the same
- the invention further relates to a method for producing a
- Polar cap according to the invention of a plastic material for pressure-tight closure of a pressure vessel comprising the steps:
- the pole cap with an inner side for later closure of the pressure vessel, an outer side for overwinding with a fiber composite material after closure of the pressure vessel and a neck-shaped outwardly projecting outwardly open passage having an inner contour for the subsequent introduction of a sealing cone as part of a pressure connection element; Inserting a metal sealing cone from the inside into the passage, the sealing cone comprising a first section and a second section tapering conically in the direction of the first section, at least in the region of the passage, until the first section protrudes outwardly from the neck-shaped passage;
- Section arranged fixing means which holds the sealing cone in a pressure-tight press fit in the inner contour.
- a connector for the inner container is easy to manufacture, which is capable of being kept leak-tight with the inner container (liner) over the entire service life.
- the method comprises the further step of
- attachment member a first contact portion which extends in a planar shape in the radial direction of the neck-shaped passage along the outside and adapted to the contour of the outside and the
- the fiber composite material comprises a second contact area with an adapted to an outer shape of the neck-shaped passage inside shape.
- the fixing means arranged externally on the first portion is a pull nut or a spring washer
- the step of producing the pressure-tight seal comprises one of the step of Exerting a pull on the sealing cone by means of the externally screwed onto the first section of the pull nut, or
- the sealing cone in the first section comprises a spring ring adapted to the ring recess at a position adapted thereto along the longitudinal axis, and subsequent engagement of the spring ring in the annular recess of the
- Sealing cone wherein the spring ring is elastically held in a recess in the inner shape of the second contact region of the attachment element, which extends along the first portion of the sealing cone
- the invention further relates to a method for producing a
- fiber-reinforced pressure vessel comprising the steps:
- FIG. 1 shows an embodiment of a pole cap 1 according to the invention with pressure connection element 2 suitable for pressure-tight closure of a
- the pole cap 1 comprises an inner side 1 1, which faces the interior of the pressure vessel for later closure of the pressure vessel 100, an outer side 12 provided for overwinding with a fiber composite material 3 after closure of the pressure vessel 100 and a halsformige from the outside to the outside outstanding open passage 13 with a cone-shaped inner contour 13i in a wide range between the inside 1 1 and outside 12, which tapers outwardly along the passage 13 in this area, each made of plastic material.
- the pole cap 1 further comprises a to the passage 13 for closing the
- Pressure connection element 2 comprises a sealing cone 21 made of metal with a protruding outwardly through the passage 13 first portion 21 a and with a at least in the region of the bushing 13 corresponding to the conical inner contour 13i adapted second portion 21 b.
- the section 21 b has an inner contour 13i corresponding outer cone shape in the longitudinal direction LR of the passage 13 with a circular first surface A1 on or above the inner side 1 1 and a circular second surface A2 facing the outer side 12 of the polar cap 1, wherein in this
- the first and second surfaces A1 and A2 are aligned perpendicular to the longitudinal direction of the bushing 13.
- the sealing cone 21 further has in its interior a cylindrical passage 21 D for filling the later pressure vessel 100 with fluids or gases
- the sealing cone 21 is pressed according to the area ratio between the first and second surfaces A1, A2 already by the internal pressure in the pressure vessel 100 in the konusformige inner contour 13i of the bushing 13, so that a good sealing effect between sealing cone 21 and passage 13 is guaranteed ,
- the sealing cone 21 is arranged by means of a screwed onto the first portion 21 a from the outside Switzerlandnut 22z than that from the outside on the first portion 21 a
- Pressure vessel 100 is not yet subjected to internal pressure.
- the sealing cone 21 protrudes with its second portion 21 b from the passage 13 on the inside 1 1 addition, which facilitates the assembly of the tension nut 22z.
- Sections 21 b of the sealing cone 21 can be configured by a person skilled in the art.
- the conical inner contour 13i of the bushing 13 can also extend from the inner side 11 to the neck end 13h on the outer side 12.
- the pole cap 1 in addition to the pole cap of Fig. 1 further comprises a cap member 14 which is placed on the neck-shaped passage 13.
- the attachment element 14 comprises a first contact region 14a, which extends in a planar manner in the radial direction from the neck-shaped passage 13 along the outer side 12 and is adapted to the contour of the outer side 12 and provided for over-winding with the fiber composite material 3.
- the outer side 12 has for this purpose a recess from which the attachment element 14 is received so that the contour of the outer side 12 outside the first contact surface 14a in the area is continued with the first contact portion 14a on the outer side 12 in the direction of the passage 13 without change.
- the attachment member 14 further includes a second contact portion 14b for covering the neck-shaped passage along the longitudinal direction of the passage 13.
- the outer shape of the neck-shaped passage 13 here has a cylindrical shape around its the cone-shaped inner shape 13i.
- the inner shape of the second contact portion 14 b also has a cylindrical shape adapted to the dimension of the outer shape of the lead-through 13, that the second contact portion 14 b prevents deformation of the outer shape of the neck-shaped passage 13 in the radial direction RR.
- the outer shape of the bushing 13 at the neck end 13h includes a circumferential edge 13r, the second contact portion 14b being formed to cover the circumferential edge 13r upward (perpendicular to the longitudinal direction), so that deformation of the outer shape of the bushing 13 also is prevented perpendicular to the radial direction RR.
- the second contact region 14b further extends along the first portion 21 a of the sealing cone, wherein here in the first section 21 a around the first portion 21 a circumferential seal 23, for example, an O-ring seal, for pressure-tight sealing against the second contact area 14b of the attachment element 14 is arranged.
- the attachment element 14 here furthermore comprises a third region 14c arranged in the longitudinal direction LR above the second contact region 14b.
- the third region 14c comprises an inner side 14i facing the first portion 21a, which defines a circumferential gap 15 between the inner side 14i and the first portion 21a of the sealing cone 21 in the radial direction RR, so that in this gap 15 the tension nut 22z becomes an outer one arranged on the first portion 21 a arranged fixing means 22 on the sealing cone 21 and can be screwed onto this.
- the second contact region 14b below the third region 14c forms a support region 14z for the tension nut 22z, so that additionally the attachment element 14 is secured on the pole cap 1 by means of the tension nut 22z via the support region 14z pressing on the neck-shaped bushing 13.
- the shape of the tension nut 22z and the corresponding thread 16 in the second section 21b of the sealing cone 21 can be designed by a person skilled in the art. Additionally or alternatively according to others Embodiments, the attachment element 14 in this embodiment with its second contact portion 14b on the outer shape of the necked
- the attachment member 14 is screwed here to the direct contact of the first contact portion 14a with the outside 12 from above on the neck-shaped passage 13.
- the second contact region 14b of the attachment element 14 may include a self-tapping thread 16 for this screw connection, provided that the plastic material at least the neck-shaped passage 13 of the polar cap 1 is a soft
- Plastic material is. In this case, no thread would be arranged on the neck-shaped passage 13 on its outer shape. If the plastic material for self-tapping were too hard, corresponding threads would have to be disposed on both the outer shape of the necked passage 13 and the inner shape of the second contact portion 14b. For in / out of fluids or gases in / out of the pressure vessel in / out is on the
- Sealing cone arranged 21 a valve cap, the corresponding inlet and / or outlet openings, an operating device for the inlet and / or
- Outlet openings and optionally other components such as a pressure gauge may include.
- 3 shows a further embodiment of a pole cap 1 according to the invention with pressure connection element 2, wherein the tension nut 22z shown in FIG. 2 has been replaced here as the fixing element 22 by a spring ring 22f.
- the tension nut 22z shown in FIG. 2 has been replaced here as the fixing element 22 by a spring ring 22f.
- this case also extends the inner shape of the second contact portion 14b of the attachment member 14 along the first portion 21 a of the sealing cone 21 and has in a first portion 21 a region opposite a recess 14 d, in which the externally on the first portion 21 a
- the first section 21a of the sealing cone 21 comprises a ring recess 21e adapted to the spring ring 22f (here completely filled by the spring ring 22f) at a position adapted thereto along the longitudinal axis LR into which the spring ring 22f follows
- a sealing ring 23 is arranged here as in Fig.2. For details of the sealing ring reference is made to FIG.
- the fiber-reinforced pressure vessel 100 in this case comprises an inner container 1 10 made of a plastic material having a cylindrical central portion 120 and two each disposed on both sides of the central portion 120 polar caps 1, 1 ' , which close the central portion 120 on both sides. Since both the Mitteilteil 120 and the pole caps 1, 1 'are made of plastic material, the pole caps 1, 1 ' with conventional
- FIG 5 shows an embodiment of a method 200 according to the invention for producing the pole cap 1 according to the invention.
- Design of the pole cap is also referred to the figures 1 to 3.
- Method 200 comprises the steps of providing 210 the polar cap 1 with an inner side 1 1 for later closure of the pressure vessel 100, an outer side 12 for overwinding with a fiber composite material 3 according to
- Pressure connection element 2 the insertion 220 of a sealing cone 21 made of metal from the inner side 13i into the passage 13, wherein the sealing cone 21 has a first section 21 a and a tapered at least in the region of the passage 13 in the direction of the first section 21 a second
- Section 21 b includes until the first portion 21 a outwardly of the
- the method 200 may include the further step of placing 230 a cap member 14 on the neck-shaped passage 13 to prevent deformation of the outer shape of the passage 13 in the radial direction RR, wherein the
- Over winding is provided with the fiber composite material 3, and a second contact portion 14 b with an outer shape of the neck-shaped passage
- Section 21 a arranged fixing 22 is a pull nut 22z or a spring ring is 22f, while the step 240 of the pressure-tight completion of the step of exerting 240 a train on the sealing cone 21 by means of the externally screwed onto the first portion 21 a
- Section 21 a of the sealing cone 21 extends, is held elastically include.
- FIG. 6 shows an embodiment of a method 300 according to the invention for producing a fiber-reinforced pressure vessel 100 according to the invention, comprising the steps of providing 310 a cylindrical center part 21 made of a plastic material, providing 320 of two pole caps 1, 1 ' made of plastic material for closing the middle part 120, of which one of the pole caps 1, 1 'is a polar cap 1 according to the invention, the welding 330 of the pole caps 1, 1 ' comprising the pole cap 1 with already connected pressure connection element 2 with the central part 120 for producing a Inner container 1 10 made of plastic material, and the overwinding 340 of the inner container 1 10 with fiber composite material 3 for the preparation of
- the inner container 1 10 preferably all surfaces of the inner container 1 10 with the exception of the pressure connection element 2 are wound with fiber composite material 3.
- the welding process for the production of the inner container 1 10 is characterized in that it is suitable for small, medium and large quantities, because the precursors extruded tube (Mitteilteil 120) and injection-molded polar caps 1 are very simple and inexpensive to produce.
- This method 200 is particularly suitable in that only in this method pressure connection elements 2 (or valve elements) can be mounted from both sides 11, 12 of the polar cap 1, as is not possible with the other methods. This can be done before
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
Description
Claims
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020197026485A KR102484769B1 (ko) | 2017-02-23 | 2018-02-16 | 압력용기용 압력 포트 요소가 있는 폴캡 |
| JP2019545257A JP7027439B2 (ja) | 2017-02-23 | 2018-02-16 | 圧力容器用の圧力ポート要素を備えるポールキャップ |
| BR112019017365-0A BR112019017365B1 (pt) | 2017-02-23 | 2018-02-16 | Tampa de polo para o fechamento bem vedado de um vaso de pressão, vaso de pressão reforçado por fibra, método para produzir uma tampa de polo e método para produzir um vaso de pressão reforçado por fibra |
| AU2018226208A AU2018226208B2 (en) | 2017-02-23 | 2018-02-16 | Pole cap with pressure connection element for pressure vessels |
| MX2019009905A MX2019009905A (es) | 2017-02-23 | 2018-02-16 | Tapon polar con un elemento de orificio de presion para recipientes a presion. |
| US16/488,394 US11098801B2 (en) | 2017-02-23 | 2018-02-16 | Pole cap with pressure connection element for pressure vessels |
| CA3053051A CA3053051C (en) | 2017-02-23 | 2018-02-16 | Pole cap with a pressure port element for pressure vessels |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP17157536.8A EP3366975B1 (de) | 2017-02-23 | 2017-02-23 | Polkappe mit druckanschlusselement für druckbehälter |
| EP17157536.8 | 2017-02-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2018153779A1 true WO2018153779A1 (de) | 2018-08-30 |
Family
ID=58191280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2018/053860 Ceased WO2018153779A1 (de) | 2017-02-23 | 2018-02-16 | Polkappe mit druckanschlusselement für druckbehälter |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US11098801B2 (de) |
| EP (1) | EP3366975B1 (de) |
| JP (1) | JP7027439B2 (de) |
| KR (1) | KR102484769B1 (de) |
| CN (1) | CN108506488A (de) |
| AU (1) | AU2018226208B2 (de) |
| CA (1) | CA3053051C (de) |
| ES (1) | ES2909886T3 (de) |
| MX (1) | MX2019009905A (de) |
| WO (1) | WO2018153779A1 (de) |
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| DE102024123807A1 (de) * | 2024-08-20 | 2026-02-26 | Bayerische Motoren Werke Aktiengesellschaft | Druckbehälter zum Speichern von Brennstoff, Energiewandlersystem, Fahrzeug und Verfahren zum Herstellen eines Druckbehälters |
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| CA2926291C (en) | 2012-10-19 | 2022-04-05 | Chris FORSBERG | Systems and methods for mounting a fuel system |
| CA3110459C (en) | 2018-08-24 | 2024-06-18 | Hexagon Purus North America Holdings Inc. | Battery system for heavy duty vehicles |
| JP7036042B2 (ja) * | 2019-01-09 | 2022-03-15 | トヨタ自動車株式会社 | 圧力容器 |
| US11440399B2 (en) | 2019-03-22 | 2022-09-13 | Agility Fuel Systems Llc | Fuel system mountable to a vehicle frame |
| US11040610B2 (en) | 2019-04-19 | 2021-06-22 | Hexagon Purus North America Holdings Inc. | Electric powertrain system for heavy duty vehicles |
| WO2020215023A1 (en) | 2019-04-19 | 2020-10-22 | Hexagon Purus North America Holdings Inc. | Electric front end accessory devices assembly |
| US20200347992A1 (en) | 2019-05-02 | 2020-11-05 | Agility Fuel Systems Llc | Polymeric liner based gas cylinder with reduced permeability |
| DE102019212155B4 (de) * | 2019-08-13 | 2025-01-02 | Audi Ag | Röhrenförmiger Drucktank zur Speicherung von Brennstoff in einem Kraftfahrzeug und Herstellverfahren |
| JP2021076174A (ja) | 2019-11-07 | 2021-05-20 | トヨタ自動車株式会社 | 圧力容器 |
| KR102363384B1 (ko) | 2019-11-19 | 2022-02-15 | 롯데케미칼 주식회사 | 고압탱크용 노브캡 |
| CA3161967C (en) | 2019-11-26 | 2025-05-13 | Hexagon Purus North America Holdings Inc. | POWER DISTRIBUTION FOR ELECTRIC VEHICLES AND MOTOR CONTROL MODULE |
| US11926207B2 (en) | 2020-10-09 | 2024-03-12 | Hexagon Purus North America Holdings Inc. | Battery and auxiliary components for vehicle trailer |
| CA3205080A1 (en) | 2020-12-11 | 2022-06-16 | Hexagon Purus North America Holdings Inc. | Trailer hookup breakaway mitigation systems and methods |
| CN112628592A (zh) * | 2021-01-29 | 2021-04-09 | 广东欧佩亚氢能源科技有限公司 | 一种车载储氢瓶阀座结构及安装方式 |
| DE102021104843A1 (de) | 2021-03-01 | 2022-09-01 | Bayerische Motoren Werke Aktiengesellschaft | Druckbehälter zum Speichern eines gasförmigen Kraftstoffes sowie Kraftfahrzeug |
| WO2022235947A1 (en) | 2021-05-07 | 2022-11-10 | Agility Fuel Systems Llc | Composite interwoven gas containment assemblies |
| US12358365B1 (en) | 2021-05-07 | 2025-07-15 | Agility Fuel Systems Llc | Vehicles having composite interwoven gas containment assemblies |
| KR20230065486A (ko) * | 2021-11-05 | 2023-05-12 | 롯데케미칼 주식회사 | 외부 충격 방지 기능을 갖는 가스탱크 |
| AT528153B1 (de) * | 2024-01-30 | 2026-02-15 | Bhdt Gmbh | H2-Hochdruckbehälter |
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Also Published As
| Publication number | Publication date |
|---|---|
| US11098801B2 (en) | 2021-08-24 |
| MX2019009905A (es) | 2019-11-21 |
| AU2018226208A1 (en) | 2019-09-19 |
| KR20190116409A (ko) | 2019-10-14 |
| US20200088299A1 (en) | 2020-03-19 |
| CN108506488A (zh) | 2018-09-07 |
| EP3366975A1 (de) | 2018-08-29 |
| JP7027439B2 (ja) | 2022-03-01 |
| CA3053051A1 (en) | 2018-08-30 |
| KR102484769B1 (ko) | 2023-01-04 |
| JP2020512506A (ja) | 2020-04-23 |
| EP3366975B1 (de) | 2021-12-29 |
| CA3053051C (en) | 2023-01-03 |
| BR112019017365A2 (pt) | 2020-03-31 |
| AU2018226208B2 (en) | 2024-01-25 |
| ES2909886T3 (es) | 2022-05-10 |
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