Dual-inlet valve refilling of a single fuel cylinder
11649927 · 2023-05-16
Assignee
Inventors
Cpc classification
F17C2270/0173
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F17C2203/0604
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F17C2203/066
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F17C2223/036
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F17C2223/0123
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F17C2205/0326
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F17C2270/0171
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F17C2221/012
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
B67D7/04
PERFORMING OPERATIONS; TRANSPORTING
F17C2203/0663
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F17C2201/0109
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F17C13/04
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F17C2270/0105
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F17C2250/0626
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F17C2203/0621
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F17C2203/0673
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F17C2201/056
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F17C5/06
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Y02E60/32
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
F17C2203/0643
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F17C2205/0142
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F17C2270/0189
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F17C2205/0305
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F17C9/02
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F17C2250/032
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F17C2201/058
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F17C2203/0617
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F17C2203/012
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F17C2205/0382
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F17C2270/0184
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F17C2270/0178
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F17C1/08
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F17C2205/0138
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F17C2201/035
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
International classification
F17C1/08
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
B67D7/04
PERFORMING OPERATIONS; TRANSPORTING
F17C13/04
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Abstract
A fuel cylinder, such as a high-pressure fluid storage tank, is provided with dual-inlet refilling capabilities. The storage tank may include a main body section with a first domed end portion and a second domed end portion disposed at opposite portions of the main body section. A first inlet assembly and a second inlet assembly are provided at the respective first domed end portion and the second domed end portion. Each inlet assembly is configured to provide fluid communication between a supply of a high-pressure fluid and an interior of the storage tank. Each inlet assembly may include a boss and a tank valve, with each tank valve being in fluid communication with the compressed fluid receptacle. During filling of the storage tank, the high-pressure fluid travels through a compressed fluid receptacle and enters the interior of the storage tank simultaneously through each of the first and second inlet assemblies.
Claims
1. A high-pressure fluid storage tank assembly with dual inlet refilling, the storage tank comprising: a main body section; a first domed end portion and a second domed end portion disposed at opposite portions of the main body section; a first inlet assembly and a second inlet assembly provided at the respective first domed end portion and the second domed end portion, each inlet assembly configured to provide fluid communication between a supply of a high-pressure fluid outside the storage tank and an interior of the storage tank, such that the high-pressure fluid travels through a compressed fluid receptacle and enters the interior of the storage tank simultaneously through each of the first and second inlet assemblies from outside the storage tank; and a flow control valve positioned to control a flow of high-pressure fluid only into the first inlet assembly, with no flow control valve positioned to control flow of high-pressure fluid into the second inlet assembly.
2. The high-pressure fluid storage tank assembly according to claim 1, wherein each inlet assembly comprises a tank valve disposed within a boss, with each tank valve being in fluid communication with the compressed fluid receptacle.
3. The high-pressure fluid storage tank assembly according to claim 2, further comprising a pair of inlet conduits residing externally of the storage tank and providing fluid communication between the compressed fluid receptacle and the respective tank valves of the of the first and second inlet assemblies.
4. The high-pressure fluid storage tank assembly according to claim 3, wherein the pair of inlet conduits are shaped and sized in order to provide the high-pressure fluid into the interior of the storage tank at substantially the same flow rate.
5. The high-pressure fluid storage tank assembly according to claim 3, wherein the pair of inlet conduits are provided with the same length and width dimensions.
6. The high-pressure fluid storage tank assembly according to claim 2, further comprising a manifold disposed between the compressed fluid receptacle and at least one of the first and second inlet assemblies, wherein the manifold permits a flow of the high-pressure fluid through the first and second inlet assemblies and into the interior of the storage tank at substantially the same flow rate.
7. The high-pressure fluid storage tank assembly according to claim 2, comprising two compressed fluid receptacles, each compressed fluid receptacle being in fluid communication with a different one of the first and second inlet assemblies.
8. The high-pressure fluid storage tank assembly according to claim 1, wherein the high-pressure fluid enters the interior of the storage tank from an exterior of the storage tank simultaneously through each of the first domed end portion and the second domed end portion, through each of the first and second inlet assemblies.
9. A dual-inlet system for refilling a high-pressure fluid storage tank, the system comprising: a high-pressure fluid storage tank including a main body section and defining an interior for storing a high-pressure fluid; a single compressed fluid receptacle configured for receiving a high-pressure fluid from a supply source; a first inlet assembly and a second inlet assembly, each inlet assembly configured to provide fluid communication between the single compressed fluid receptacle and the interior of the storage tank, such that the high-pressure fluid travels through the compressed fluid receptacle to enter from an exterior of the storage tank into the interior of the storage tank simultaneously through each inlet assembly; a single manifold connected between the receptacle and the storage tank; a first inlet conduit extending from the single manifold directly to the first inlet assembly; and a second inlet conduit separate from the first inlet conduit and extending from the single manifold directly to the second inlet assembly, wherein the system is structured so that each of the first and second inlet conduits receives high-pressure fluid only from the single receptacle and through the single manifold.
10. The dual-inlet system for refilling the high-pressure fluid storage tank according to claim 9, wherein the storage tank comprises a first domed end portion and a second domed end portion disposed at opposite portions of the main body section that cooperate to define the interior, wherein the first inlet assembly is located at the first domed end portion, and the second inlet assembly is located at the second domed end portion.
11. The dual-inlet system for refilling the high-pressure fluid storage tank according to claim 10, wherein each inlet assembly comprises a tank valve disposed within a boss, with each tank valve configured to direct fluid communication between the compressed fluid receptacle and the interior of the storage tank.
12. The dual-inlet system for refilling the high-pressure fluid storage tank according to claim 11, wherein the first inlet conduit provides fluid communication between the compressed fluid receptacle and the tank valve of the first inlet assembly, and the second inlet conduit provides fluid communication between the compressed fluid receptacle and the tank valve of the second inlet assembly.
13. The dual-inlet system for refilling the high-pressure fluid storage tank according to claim 12, wherein the single manifold is disposed between the compressed fluid receptacle and each of the first and second inlet assemblies, and wherein the single manifold permits a flow of the high-pressure fluid through the each of the first and second inlet assemblies and into the interior of the storage tank at substantially the same flow rate.
14. The dual-inlet system for refilling the high-pressure fluid storage tank according to claim 12, comprising two compressed fluid receptacles, each compressed fluid receptacle being in fluid communication with a respective one of the first inlet assembly and the second inlet assembly.
15. The dual-inlet system for refilling the high-pressure fluid storage tank according to claim 10, wherein each of the first and second inlet conduits is shaped and sized in order to provide the high-pressure fluid into the interior of the storage tank at substantially the same flow rate.
16. The dual-inlet system for refilling the high-pressure fluid storage tank according to claim 9, wherein each of the first and second inlet conduits is provided with the same length and width dimensions.
17. The dual-inlet system for refilling the high-pressure fluid storage tank according to claim 9, comprising two high-pressure fluid storage tanks, each storage tank including: a main body section and defining an interior for storing a high-pressure fluid; a first inlet assembly and a second inlet assembly, each inlet assembly configured to provide fluid communication between the compressed fluid receptacle and the interior of the respective storage tank simultaneously through each inlet assembly; a respective first inlet conduit extending from the single manifold directly to the first inlet assembly; and a respective second inlet conduit separate from the first inlet conduit and extending from the single manifold directly to the second inlet assembly.
18. A vehicle comprising the dual-inlet system for refilling a high-pressure fluid storage tank according to claim 9.
19. A method for refilling a high-pressure fluid storage tank, the method comprising: providing a high-pressure fluid storage tank including: a main body section defining an interior for storing a high-pressure fluid, a first inlet assembly, a second inlet assembly; connecting a supply of a high-pressure fluid to a compressed fluid receptacle in fluid communication with the first and second inlet assemblies; connecting the compressed fluid receptacle a flow control valve positioned to control a flow of high-pressure fluid only into the first inlet assembly, with no flow control valve positioned to control flow of high-pressure fluid into the second inlet assembly; and directing the high-pressure fluid from an exterior of the storage tank into the interior of the storage tank simultaneously through the flow control valve and the first inlet assembly, and also through the second inlet assembly.
20. The method according to claim 19, wherein the high-pressure fluid comprises hydrogen gas, and the high-pressure storage tank is disposed in a vehicle.
21. The method according to claim 19, comprising directing the high-pressure fluid to the interior of the storage tank simultaneously through each of the first and second inlet assemblies at substantially the same flow rate.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) The present teachings will become more fully understood from the detailed description and the accompanying drawings, wherein:
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(15) It should be noted that the figures set forth herein are intended to exemplify the general characteristics of the methods, algorithms, and devices among those of the present technology, for the purpose of the description of certain aspects. These figures may not precisely reflect the characteristics of any given aspect, and are not necessarily intended to define or limit specific embodiments within the scope of this technology. Further, certain aspects may incorporate features from a combination of figures.
DETAILED DESCRIPTION
(16) The present technology generally relates to designs of fuel cylinders, such as high-pressure storage tanks, and methods for shortening the time required for refilling the high-pressure storage tanks at fueling stations, all while still using universal pumps and existing refueling components in order to optimize cost and design flexibility. The designs of the present technology provide for high-pressure storage tanks with dual-inlets for simultaneous refilling capabilities. For example, the high-pressure storage tank can be provided with a main body section with a first domed end portion and a second domed end portion disposed at opposite portions of the main body section. A first inlet assembly and a second inlet assembly may be provided at the respective first domed end portion and the second domed end portion. Each inlet assembly may be configured to provide fluid communication between a supply of a high-pressure fluid and an interior of the storage tank. In various aspects, each inlet assembly may include a tank valve disposed in a boss, with each tank valve being in fluid communication with the compressed fluid receptacle. During filling of the storage tank, the high-pressure fluid travels through a compressed fluid receptacle and enters the interior of the storage tank simultaneously through each of the first and second inlet assemblies. In various aspects, the high-pressure fluid may be provided into the interior of the storage tank at substantially the same flow rate through each inlet assembly.
(17) In order to gain a more complete understanding of the present technology, reference is made to
(18) It should be understood that while the present technology may be specifically referenced herein with regard to use of the high-pressure storage tanks 32 with compressed hydrogen gas for vehicles, the present technology is also useful with the storage and refilling of various other high-pressure fluids, and is not limited to storage tanks used with vehicles. As used herein, the term “vehicle” is not meant to be limiting or construed narrowly, and should include all types of things used for transporting people or goods, with non-limiting examples including a car, truck, motorcycle, off-road vehicle, bus, boat, airplane, helicopter, lawn mower, recreational vehicle, amusement park vehicle, farm vehicle, construction vehicle, tram, golf cart, train, trolley, and the like. It should also be understood that use of the term “vehicle” is meant to include all types of powered vehicles, including electric vehicles, hybrid vehicles, and conventional fuel powered vehicles that may also include one or more high-pressure storage tank.
(19) The details of the fuel cell stack 22 may vary by design requirements. In various aspects, the fuel cell stack 22 may utilize a polymer electrolyte membrane (PEM) type fuel cell that optimizes a compact size along with a top level output density. As is known in the art, the fuel cell stack 22 produces electricity using a chemical reaction between hydrogen and oxygen. The hydrogen may be provided as a gas from an appropriate fuel cylinder such as a high-pressure storage tank 32 located in the vehicle 20, while the oxygen is generally obtained from the environmental air the flows through front intake grills 34 of the vehicle 20. Each PEM fuel cell uses a membrane allowing hydrogen's positive ions to combine with oxygen, forcing the hydrogen's electrons to follow an outer circuit, creating an electric charge. The resulting byproducts of the reaction include water, steam and heat that is expelled by the vehicle as an exhaust using known techniques. In various aspects, the fuel cell stack 22 output may be greater than about 100 kW, with a power density of greater than about 3 kW/L, and the stack 22 may have an output of greater than about 150 DIN hp. The fuel cell stack 22 may include an internal circulation and humidification system.
(20) As shown in
(21) The power system may include one or more high powered drive battery 28, shown in the rear area of the vehicle 20 of
(22) The vehicle 20 typically includes a power control unit (PCU) 30 as a mechanism for optimally controlling the fuel cell stack 22 under various different operational conditions, as well as for controlling the charging and discharging of the drive battery 28. The electric motor 26 drives the rotation of the wheels, and is driven by electricity generated by the fuel cell stack 22 and supplied by the drive battery 28, as described above.
(23) The exemplary vehicle 20 of
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(30) As shown, the exemplary storage tank 46 may be provided with an innermost layer 76 being a liner or gas permeation barrier, for example, a liner formed of a high molecular weight polymer such as HPDE, or the like. In certain aspects, the innermost layer 76 may be made of a synthetic resin such as a nylon resin; alternatively, the liner could also be a metal such as stainless steel. One or more middle layer(s) 78 of the storage tank 46 may be formed of a reinforcing fiber, a carbon fiber or carbon composite shell, a hybrid composite material, or the like, suitable to provide the necessary structural rigidity. In addition to carbon fiber, the middle layer(s) 76 may include metal fibers, glass fibers, inorganic fibers such as alumina fibers, synthetic fibers such as aramid fibers, and natural fibers such as cotton. Any of these fibers may be used alone or in combination. The outermost layer or shell 80 of the storage tank 46 may be formed of an impact resistant material for optimal damage resistance. Additional reinforcement materials, such as foam covers 82, may be placed adjacent the dome end portions 60a, 60b for still further impact protection. Additional examples of multi-layered reinforced tank designs, materials useful for incorporating into high-pressure storage tanks, as well as manufacturing methods of the same, can be found in U.S. Pat. No. 9,879,825, assigned to Toyota Jidosha Kabushiki Kaisa, which is incorporated by reference herein in its entirety.
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(33) It should be understood that the various different types, sizes, purposes, and thus power requirements of vehicles may provide for the need to have different configurations and designs of the dual-inlet high-pressure fluid storage containers of the present technology.
(34) The foregoing description is provided for purposes of illustration and description and is in no way intended to limit the disclosure, its application, or uses. It is not intended to be exhaustive or to limit the disclosure. Individual elements or features of a particular embodiment are generally not limited to that particular embodiment, but, where applicable, are interchangeable and can be used in a selected embodiment, even if not specifically shown or described. The same may also be varied in many ways. Such variations should not be regarded as a departure from the disclosure, and all such modifications are intended to be included within the scope of the disclosure.
(35) As used herein, the phrase at least one of A, B, and C should be construed to mean a logical (A or B or C), using a non-exclusive logical “or.” It should be understood that the various steps within a method may be executed in different order without altering the principles of the present disclosure. Disclosure of ranges includes disclosure of all ranges and subdivided ranges within the entire range, including the endpoints.
(36) The headings (such as “Background” and “Summary”) and sub-headings used herein are intended only for general organization of topics within the present disclosure, and are not intended to limit the disclosure of the technology or any aspect thereof. The recitation of multiple embodiments having stated features is not intended to exclude other embodiments having additional features, or other embodiments incorporating different combinations of the stated features.
(37) As used herein, the terms “comprise” and “include” and their variants are intended to be non-limiting, such that recitation of items in succession or a list is not to the exclusion of other like items that may also be useful in the devices and methods of this technology. Similarly, the terms “can” and “may” and their variants are intended to be non-limiting, such that recitation that an embodiment can or may comprise certain elements or features does not exclude other embodiments of the present technology that do not contain those elements or features.
(38) The broad teachings of the present disclosure can be implemented in a variety of forms. Therefore, while this disclosure includes particular examples, the true scope of the disclosure should not be so limited since other modifications will become apparent to the skilled practitioner upon a study of the specification and the following claims. Reference herein to one aspect, or various aspects means that a particular feature, structure, or characteristic described in connection with an embodiment or particular system is included in at least one embodiment or aspect. The appearances of the phrase “in one aspect” (or variations thereof) are not necessarily referring to the same aspect or embodiment. It should be also understood that the various method steps discussed herein do not have to be carried out in the same order as depicted, and not each method step is required in each aspect or embodiment.