Pressurized fluid tank, in particular for compressed gas used in car

Ukraine

(19) and A (11) 79593 (13) C2

(51) IPC (2006)

R17S 1/00

MINISTRY OF EDUCATION SCIENCE OF UKRAINE

STATE DEPARTMENT OF INTELLECTUAL PROPERTY

DESCRIPTION

TO THE INVENTORY PATENT

(54) RESERVOIR FOR THE ENVIRONMENT THROUGH TISK, SPECIALLY FOR THE STEERED GAS AUTOMATICALLY USED IN THE VEHICLE

1

(21) 20031211188

(22) 07.04.2003

(24) July 10, 2007

(86) PCT / РР03 / 01085, 07.04.2003

(31) 02/04346

(32) April 8, 2002

(33) RR

(46) Jul 10, 2007, Bul. No. 10, 2007

(72) Ervio Antoine, RR, Malayor Philippe, RR, Pesochack, RR

(73) SNEKMA PROPULSION SOLID, PP

(56) and 48187, P17C1 / 02, 29.12.99

JS 3026116, В651Э88 / 08, 04.02.82

Сatalogue 488534, Р17С1 / 06, 08.07.38

ΣΡ 10274391, R17C1 / 02, October 13, 1998

from 3662780, В01647 / 02, 16.05.72

from 5908134, R17C1 / 00, 01.06.99

МО 9728401, В2Ю51 / 24, 07.08.97

(57) 1. A reservoir for fluids under a mill containing one or more interconnected elemental receptacles, executed at least partially from a composite material, characterized in that the elemental capacity (20) or each of the elementary receptacles contains a cylindrical body (22) of a composite material, two flanges (30) closing the cylindrical co-ply at both ends, and at least two clamps (40a, 40b) which pull the capacitance in the longitudinal direction, adjacent to the parts the outer surfaces of the flanks, and are located on both sides longitudinally The median plane of the cylindrical body (22).

2. A reservoir according to claim 1, characterized in that at least one of the elemental capacity flanges (30) is adapted for measuring measuring apparatus (52), protective devices or connecting elements spaced in between the clamps.

3. A reservoir according to claim 1 or 2, characterized in that the collars (40a, 40b) are made of a composite material reinforced with continuous fibers.

4. A reservoir according to any one of claims 1 to 3, characterized in that the flanges (30) are made of composite material and have an inwardly enclosed surface, not penetrated by the fluid media.

5. A reservoir according to any one of the preceding claims. 1-3, which is distinguished by the fact that the flanges (30) are made of metal.

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6. A reservoir according to any one of claims 1 to 5, characterized in that each of the clamps (40a, 40b) pro-walks through the groove (36a, 36b), is made on the outer surface of each flange.

7. A reservoir according to any one of claims 1 to 6, characterized in that each of the flanges (30) is made in the form of a stopper, part (34) of which is tight in the end portion of the cylindrical body (22).

8. A reservoir according to any one of claims 1 to 7, characterized in that the cylindrical body (22) of each capacity has an inner coating (24) of a material not permeable to fluid media

A reservoir according to any one of claims 1 to 8, characterized in that between the cylindrical body (22) and at least one of the flanges (30) there is provided a rotation limiter (16), which prevents the expansion of the flange relative to the cylindrical body on -in his axis.

10. A reservoir according to any one of claims 1 to 9, comprising a plurality of elemental receptacles (20), which is characterized by the fact that two adjacent capacities are in direct physical contact with each other through the adjacent flanges (30).

11. A reservoir according to any one of claims 1 to 10, comprising a plurality of elemental receptacles (20), characterized in that two adjacent capacitances are mechanically connected to each other by means of at least one mechanical coupling element (50), which connects adjacent flanges (30) of these two capacities.

12. A reservoir as claimed in any one of claims 1 to 10, comprising a plurality of elemental receptacles (20), which is matched by the fact that the internal volumes of the two adjacent capacities are connected to each other by means of at least one connecting pipe ( 42) that binds the adjacent flanges (30) of these two capacitances.

13. A reservoir according to any one of claims 1 to 12, wherein the at least some of the elementary tanks are connected to the collector of a fluid cavity by means of at least one outflow made in the flange.

14. A reservoir according to any one of claims 1 to 13, which is blistered by the fact that several elemental capacitances form a bundle of receptacles, which is fastened, at least partially, by a device (17) covering this beam.

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15. A reservoir according to any of claims 1 to 14, which is buckled off with a plurality of elementary capacities of different lengths.

16. A reservoir as claimed in any one of claims 1 to 15, which is fueled by the fact that it is equipped with a protective screen.

This wave refers to a reservoir for a medium under high pressure, that is, a sub-pressurization greater than 1 MPa.

The present invention relates mainly, but not exclusively, to the field of tanks for containing compressed natural gas (PGH) under pressure of 20MPa for automotive transport.

The development of automotive drives on gas-fired or liquefied under high pressure was an impetus for the search for solutions in the field of fuel storage, which, while ensuring maximum safety, would allow:

- to achieve the most effective use of the volume or the highest possible coefficient of filling (the ratio of the amount of loaded fuel to the volume provided);

- to obtain the optimum load factor (the ratio of the amount of loaded fuel to the mass of the reservoir) and

- Reduce the cost of using technology.

Since the operating pressures in the engines on the liquefied petroleum gas are relatively low (about 1 MPa), the load factor becomes less important as a criterion for selection than other factors.

In the case of engines on the PPS, on the contrary, the working tsi-ski reach much higher values, about 20MPa. The reservoirs used in this region of pressure consist of one or more elementary capacities or modules having a form close to the cylindrical and made of metal or composite materials.

A reservoir for storing a fluid under high pressure, maintaining a high fill factor, was proposed [in the international application ShO98 / 26209]. This known reservoir is formed from a plurality of cylindrical elemental capacities and has a polymorphic architecture-tour, which gives the following practical advantages:

- wide possibilities of adaptation to the provided space,

- modularity

- separation of storage capacity with the possibility of isolation of elemental receptacles in accordance with security requirements, as well as

- relatively small mass, due to the fact that the requirements for the thickness of the walls of each capacity are much less stringent than the time of using a single reservoir of the same useful capacity.

Since the modules are made of metalmaterials, their rate of load is relatively low. In the case of using composite modules, a significantly higher load factor is obtained, but the necessity of high pressure resistance makes the thickness of the walls increase, which affects

fill factor. In addition, the execution of "bottom + lunch" type composite materials from composite materials is associated with a significant complication of the production process. This complication is due, in particular, to the need for wrapping and / or engagement with reinforcing fibers in the composition of composite materials, and

also need special tools, for example, mandrels or shapes that have a dope to dismantle wrapped or wrapped cons.

[Patent Application No. 3026116] proposed the use of a reservoir for storing a pressurized medium, consisting of several parts with flat, flat walls. These tank parts are held together by external strapping. Parts of the reservoir are closed at their ends with lids. Lidscontained by longitudinal collars, adjacent to the adjacent edges of the covers.

The fact that each cover is held by a single longitudinal collar adjacent to the edge of this lid does not allow to ensure the stability of the structure to high pressure

In addition, the fact that each longitudinal hose is common to two parts of the reservoir limits the flexibility of the reservoir assembly and, in particular, does not allow the assembly of parts of the reservoir of different lengths.

A method for improving the stability of high pressure tanks by means of strapping was also described [in the patent document PC 10-274391], which demonstrates the use of external clamps in the form of fibers reinforced by tapes.

The task, the solution of which is aimed at this invention, is to create tanks for fluid pressure media, which consist of one or more elementary capacities, but with the simplification of such an elemental capacity or capacity, which contributes to a significant reductioncosts for their production with the production of compact and efficient tanks once and for all.

Another problem to be addressed by the present invention is the creation of tanks that have high resistance to high pressures, such as, for example, the pressures typical for TPPs, i.e., an order of 20 MPa.

Another object to which the present invention is directed is to provide the possibility of creating modular structures with a significant flexibility and, in particular, the creation of tanks of various shapes adapted to the locations provided for the placement of such tanks.

According to the invention, the solutions are set

Tasks are achieved by either capacity or each

Capacities have a cylindrical body made of composite

material, two flanges, closing cylinder-

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one body from its two ends, and at least two ho-mutts, pulling the container, in essence, in the longitudinal direction, adjoining the parts of the outer surfaces of the flanges, and are located on the sides of the longitudinal median plane of the cylindrical corps.

The fulfillment of each container in the form of a cylindrical body, supplied at the edges of two flanks, held by two longitudinal collars, gives the following advantages:

- the dimensions of the cylindrical body can be selected from the calculation of the resistance only by radial loading, generated by internal pressure, which allows the use of walls of reduced tensile,

- the separation of the functions of the resistance by radial pulling and resistance to the axial load allows to extend the choice of materials used for the manufacture of a cylindrical body, clamp or clamps and flanges, as well as the size of these elements,

- the permanent cross-section of the cylindrical body allows to use for its manufacturing a variety of continuous or semi-continuous manufacturing processes, that is, not only winding or wraps, but also other methods of manufacturing cavity structures of composite materials, for example, extrusion,

- application of two longitudinal clamps ensures reliable fastening of flanges on a cylindrical body, including under high pressure,

- the space between the clamps, at least one of the flanges, can be used to create a depression, which allows you to place the measuring equipment, safety devices or connecting elements without increasing the size.

The clamps can be made of metal or composite materials. In this latter case, they contain fibrous amplifying elements, formed from continuous fibers.

Flanges can be made of metal or structural-composite materials.

In an optimum variant, each clamp passes through the grooves, executed on the outer surface of each flange.

In addition, in optimal form, each flange is in the form of a stopper, part of which is thick in the final part of the cylindrical body. In addition, between the cylindrical body and, at the very least, one of the flanges may be provided a rotation limiter, which prevents the flange of the flange relative to the cylindrical body around the axis.

Cylindrical body and flanges of each container can be supplied with an internal coating of material not permeable to the fluid medium selected based on the materials from which the capacity is made, and the fluid contained in it.

In the case of the use of several containers, theyoptimally fit in the volume of parallelepipedas or prisms defined by flanges, which allowscombine these capacities into modular structures, rustaking them one next to another.

Thanks to this, the mechanical connection of the two capacities can be accomplished by means of a mechanical connecting element, which, for example, binds adjacent flanges of these two capacities.

Alternatively, containers can be assembled into a bundle and are connected, at least in part, by a device embracing this bundle. Such capacitiesmay be different lengths.

The internal volumes of the two adjacent capacities may be connected to each other by at least one channel connecting the flanges located at the sides of these two capacitances.

Alternatively, or in addition to the said conjugate, at least some of the capacitances can be connected to the collector of a fluid medium by means of an outlet formed on the flange.

other properties and advantages of the present invention will become apparent from the following description, which includes references to the attached drawings, illustrating an example of an embodiment of the invention that does not impose any restrictions.

In the drawings:

- Fig. 1 is a schematic partial partial view of a perspective view of one embodiment of a reservoir of the invention;

- Fig. 2 shows an enlarged partial view in the perspective of the unit capacity of the reserve array shown in FIG. 1;

- Fig. 1 shows a partial view of the intersection of the container shown in FIG. 2;

- FIG. 4 shows an enlarged partial view of a perspective view of one of the variations of the connection between adjacent capacities of the reservoir shown in FIG. 1; FIG.

- Fig. 5 shows a partial view of the intersection of the connection between two adjacent capacities in the embodiment shown in FIG. 4;

Fig. 6 schematically depicts one of the embodiments of the connection of capacitances forming a re-damper;

Fig. 7 schematically depicts one embodiment of the embodiment of the connection of the internal volumes of the reservoir capacities;

- Fig. 8 is schematically depicted in the intersection of the reservoir capacitance with

collector pipe;

Figs. 9-11 depict in the cross section variations of the flange capacitance that provide the possibility of accommodating various devices.

1 shows a reservoir 10 formed from a set of elementary modules or capacitors 20 located adjacent to one another (shown not at all). Each container 20 comprises a cylindrical body 22, closed from the ends by flanges of the SO. The receptacles are rolled parallel to each other, each of which fit into the volume 21 in the form of a parallel-pedestal, due to the shape of the flanges of the O. The accumulation of capacities fits into the volume determined by the dimensions provided for the reservoir. In the transverse section, this set fits in the right or wrong polygon, and some of the tanks can, moreover, have a length that differs from the lengths of other capacities, so that on the surface of the reservoir can

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be a recess or protruding part (not shown in FIG. 1).

In Figures 2 and 3, elemental capacity 20 is depicted more details. Cylindrical body 22, which can, for example, have a circular cross section, made of structurally-composite material formed by a reinforced-sound reinforcement element, a sealed matrix. Fiber reinforcement elements can be, for example, carbon, glass, aramid, polyethylene or made from another material. The matrix can be obtained, for example, from a thermoplastic or thermosetting resin.

The cylindrical body 22 may also be manufactured from a thermosetting composite material with reinforcing fibers and carbon brush or ceramic matrix.

The cylindrical body 22 provides a capacity of 20 with respect to the radial component of the pressure of the storage medium held in the container 20.

Various known methods may be used to make a cylindrical body 22, such as winding a pre-soaked fiber yarn onto a bobbin or wrapping pre-soaked fiber strain or shaft onto a bobbin, or forming a composite shaver with a subsequent transfer. The cylindrical shape also allows the use of the method of extrusion, which makes it possible to use a continuous process of manufacturing pipes of great length, from which the cylindrical bodies 22 are cut off the required length.

The inner surface of the cylindrical body 22 may be provided, if necessary, by a coating 24 (facing) of a roughly constant thickness, not permeable to the fluid media. The coating 24 can be made of a metal sheet, for example, of an aluminum alloy, or of plastic, for example, of polyethylene or polytetrafluoroethylene, or of an elastomer. The coating 24 is, to a lesser extent, on the entire inner surface that is in contact with the flowing medium.

The coating 24 may be glued to the inner surface of the cylindrical body 22 after the last-fitting of the latter. Alternatively, the application of the coating 24 may be carried out at the manufacturing stage of the cylindrical body 22, for example, by means of wrapping or wrapping directly onto the coating layer, or by extruding with the simultaneous application of the material coating.

The flanges 30 closing the cylindrical corpus 22 at its ends are shaped like caps with heads 32, which are supported at the end of the cylindrical body 22, and a skirt 34 that enters the latter.

Flanges can be executed as the only detail of structural and composite material. Just as the cylindrical body 22, the flanges may be necessarily supplied with a coating on the inner surface, not permeable to the fluid and which continues to cover the 24 cylindrical body 22.

In the best case, the flanges are made as a single-to-part metal material, for example, a low-alloy alloy.

The head 32 has a polygonal cross-section, which fits into the intersection of volume 21 in the form of a paralelepiped, which determines the dimensions of the container 20.

Skirt 34 has at least one groove in which there is a sealed seal 35 that adjoins the inner surface of the coating 24.

For counteracting the rotation of each flange 30 relative to the cylindrical body 22 around the axis, a rotation limiter is used. It consists of, for example, one or more of the stoppers 16, each of which is inserted into the slot 28, made in the wall of the cylindrical body 22, and in the deaf hole, made in a skirt 34 with a shift to the end of the housing relative to the sealed seal35. Slot 28 is made longitudinally in its direction to provide the possibility of the minor axial displacement of the cylindrical body and the flange in the presence of pressure in the container.

The resistance of the flanges 30 to the axial pressure of the fluid medium contained in the elementary re-damper 20 is provided by means of clamps 40a, 40i. These clamps pull the container 20 in the posterior direction and adjoin the outer flanges of the flanges 30. In the optimum variant, the clamps 40a, 40b pass through the grooves 3b, 3b, executed on the outer surfaces of the flanges 32 flanges so as to effectively hold the clamps in the required position.

The depth of the grooves 36a, 36b is chosen such that the collars 40a, 40b are placed in them on the entire thickness and do not form bumps on the outer surfaces of the heads 32. In addition to the direction of the hoops, grooves 36a, 36b also serve to protect the hoops on the ends of the container. Inside the grooves 36a, 36 may be laid intermediate layer, for example, of the elastomer, so that the clamps adjacent tothis intermediate layer.

Yarns 40a, 40b can be made of meta-left tapes, fixed around the container. In the best case, the clamps are made of a structural-composite material with reinforcing cloths and a matrix made, for example, with a scotch. Amplification fibers are continuous fibers that provide resistance to the load applied in the longitudinal direction. Fiber can be carbon, glass, aramid-bottom, polyethylene or made of other material, for example, from

phenol formaldehyde or epoxy resin. The installation of clamps can be performed by the method of wrapping fibers or fiber strip fabrics pre-impregnated with the resin forming the matrix.

The two clamps 40a, 40b pass along mutually parallel planes, located on the side of the longitudinal median plane (symmetry plane) of the container. Thus, clamps 40a, 40b, as well as the grooves 36a, 36b, fit into the volume 21 in the shape of the parallelepiped and do not increase the dimensional capacity.

Although it is best to use two clips, you

the use of more clamps also

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for example, in the case where one or more complementary clamps are arranged in a plane parallel to the planes of the clamps 40a, 40b, and cross these clamps by passing through the heads of 32 flans.

In the embodiment of FIGS. 1-3, one of the ends of each elementary container has an internal connection with all or at least one of the neighboring capacities.

For this purpose, as shown in FIGS. 4 and 5, provision is made for the pipes 42 provided with the inner channels 42a which are inserted into the apertures 38, which are, at least, in one of the side surfaces 32i and 322, 2z, 324, of the heads 32 of the flanges 30 The nozzles 42 also provide sealed sealing 46 which are dismountable between the parts of the nozzles introduced into the openings 38 and the interior walls of the latter. The holding of the nozzle 42 in the required position between the two adjacent flanges is provided, for example, by a ring protrusion 44 that is included in the groove 38a, made in an adjacent side surface hflantsiv 30.

The coupling between the internal volumes of the two neighboring tanks is thus ensured by the presence of nozzles 42 and openings 38 that pass through the inner volume of the cylindrical corpuscle through the skirt of the flanges 34 (see FIG. 3).

Each capacity is in direct physical contact with one or more adjacent capacities, with which or with which the surfaces 32i and 322, 323, 324 of the flanges 30 appear. The tanks can be secured by means of local connections, for example, over-flasks 50, fixed, for example, by screws 51, screwed into openings 39 of the heads 32 of the flanges 30 (see Figs. 1 and 4).

The jumper connection is carried out on the ends of the container.

As an alternative or in addition to the foregoing, the assembly of the reservoir may be carried out with the aid of a device in the form of a bundle 17, which encircles the reservoir 10 at the flange level and extends perpendicular to the longitudinal axis of the elemental containers, as shown in FIG. Re-zervuar thus can be formed from capacities of different lengths.

Since the receptacles 20 are directly connected to each other, the connection between the reservoir and the collector pipe 14 (Fig. 1) can only be performed for a single capacity of 20. For this purpose, a capacitance which makes it most suitable for such use can be selected.

Alternatively, especially if the capacities are not connected to each other or if not all capacitations are interconnected, a plurality of connections between one or more collector tubes and elementary 14 capacities can be fulfilled. Fig. 7 shows schematically the capacities at the end of each of which there is provided a connection to the collector-blade 14. The collector pipes 14, which are combined in the collector circuit 15, can thus perform the mechanical connection function capacities 20

The length and / or location of the elementary capacities may vary to provide the required reservoir of the required general form (see Figures 6 and 7),

which corresponds to the spatial distribution given to the reservoir.

The reservoir 10 according to the foregoing description is pritatny, in particular, for storing gas under pressure in a car running on an EPA. In an optimal variant, the reservoir is equipped with a protective screen, metal or composite material (not indicated), known from the state of the art [in particular, it is possible to rely on the already mentioned document ShO98 / 26209] and provides, at least, the protection of exterior parts of composite material from adverse external influences.

8 shows an embodiment of the coupling between the inner volume of the container 20 and the collector pipe 14. The pipe 48 is introduced into the opening 37, made in the head 32 of the flange 30 at the end of the elemental vessel 20. The pipe 48 of the ' connected with the collector pipe 14.

Such a construction can be provided on the other side of the elementary reservoir, which in this case is connected not to one, but with double-tube pipes.

In an optimum version, the space on the surface of the flanges between the clamps can be used to install at least a measuring equipment, protective devices and connecting elements, such as a pressure gauge, isolation system, thermal fuse, flow limiter, connection to the collector pipe. This arrangement allows placing this equipment in the volume of the reservoir and, in addition, contributes to its protection.

In the example depicted in FIG. 9, an additional device 52, for example a pressure gauge, is screwed into a central opening made on the flange 30 with the use of a sealed seal 54.

In the embodiment of FIG. 10, the device 52 is inserted into the central hole of the flange 30 using a sealed seal 54, but the mechanical connection is carried out with the help of a screw 56 extending through the ring 58, which is rigidly connected to the device 52 .

The embodiment of FIG. 11 differs from the embodiment of FIG. 9 by the fact that through the device 52 a pipe 60 is provided that provides a connection between the internal volume of the container and the collector pipe 14. In the embodiment of FIG. 11, a mechanical the connection of the flange device 52 may be carried out with a screw, as shown in FIG.

Of course, in the implementation of the invention, there are other variants of implementation that do not go beyond the volume of protection defined in the paragraphs of the formulation of the invention.

Thus, the volume in which each elemental capacity is inserted may, according to the form of the flanges, have a prismatic shape, different from the parallelepiped. The heads of the flanges, for example, may have a shape with a hexagonal cross section.

In addition, the reservoir may consist of a variety of

cohesive, interconnected blocks of pipes

each of which contains a set of connected elements

container capacities. Execution of the reservoir such

consisting of such blocks allows the use of

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Pissing volumes available in different parts of the car.

At the same time, the reservoir may contain only one capacity, executed in an embodiment, similar to that mentioned in the application to elemental capacities.

Finally, although the object of the present invention was to create a gas reservoir for automobiles used on PPAs, the present invention is suitable for all reservoirs for high-pressure fluid.

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Computer layout of T. Chopelov Signature Circulation 26 copies.

Ministry of Education and Science of Ukraine

State Department of Intellectual Property, st. Uritskogo, 45, Kyiv, Ukraine, 03680

State Enterprise "Ukrainian Institute of Industrial Property", st. Glazunova, 1, m. Kiv - 42, 01601