Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
  • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
  • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
  • B67D7/06—Details or accessories
  • B67D7/42—Filling nozzles
  • B67D7/44—Filling nozzles automatically closing
  • B67D7/52—Filling nozzles automatically closing and provided with additional flow-controlling valve means
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
  • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
  • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
  • B67D7/06—Details or accessories
  • B67D7/42—Filling nozzles
• • 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
  • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
  • F16L37/00—Couplings of the quick-acting type
  • F16L37/28—Couplings of the quick-acting type with fluid cut-off means
• • 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
  • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
  • F16L37/00—Couplings of the quick-acting type
  • F16L37/28—Couplings of the quick-acting type with fluid cut-off means
  • F16L37/30—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings
• • 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
  • F17C2205/0376—Dispensing pistols
• • 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 present invention relates to connection systems for fluid line ends, in particular cryogenic, in particular for liquid fuels, typically liquid hydrogen or liquefied natural gas, for motor vehicles.
• Fluid line end connection systems, in particular cryogenic fluid for motor vehicles have hitherto been of complex and delicate configurations for ensuring the required tightness, in particular using coupled rotary ball valves.
• the object of the present invention is to provide a connection system, particularly suitable for filling tanks with liquid hydrogen or liquefied natural gas, of simple and efficient structure, effectively ensuring cold and hot seals by implementing a single axial translation operation facilitating manual implementation and / or easy automation.
• the system for connecting the ends of fluid lines comprises a female part intended to receive a portion of male part, the male parts and female each comprising a valve for closing the fluid line, normally closed and movable in the open position in the connected configuration of the system, the male and female parts each further comprising an isolation valve normally closed and movable in the open position during the introduction of the male part into the female part.
• the female part comprises a tubular guide with which the male part cooperates in sealed sliding, typically via a sliding joint at the end of the male part;
• the male part comprises a central mandrel comprising the valve for closing the fluid supply pipe and sliding to penetrate the tubular guide of the female part;
• the male part comprises, behind the sliding joint at least, a first pivoting flap, forming an isolation valve, cooperating with the end of the tubular guide during the introduction of the male part into the female part;
• the tubular guide of the female part comprises a second pivoting flap, forming an isolation valve, cooperating with the end of the central mandrel of the male part when the latter is introduced into the female part;
• the male part is advantageously configured in the form of a gun which can be actuated manually and the female part is advantageously fitted in the body of a motor vehicle of which at least part of the mechanical and / or electrical power is supplied by liquid hydrogen or liquefied natural gas.
• FIGS. 1 is a schematic perspective view of 'a connection system according to the invention before interconnection of the male and female parts
• - Figure 2 is a view similar to Figure 1, but in longitudinal section
• - Figure 3 is a view similar to Figure 2 showing the male and female parts at the start of interpenetration
• - Figure 4 is a view similar to Figures 2 and 3 showing the connection system of the invention in connected configuration.
• FIGS. 1 is a schematic perspective view of 'a connection system according to the invention before interconnection of the male and female parts
• - Figure 2 is a view similar to Figure 1, but in longitudinal section
• - Figure 3 is a view similar to Figure 2 showing the male and female parts at the start of interpenetration
• - Figure 4 is a view similar to Figures 2 and 3 showing the connection system of the invention in connected configuration.
• the main elements of the connection system according to the invention are recognized, namely a male part M configured in the shape of a gun with a manual actuating stock 50 and a trigger 51 for actuating a valve. filling, and a female part F, advantageously housed in an element 52 of a vehicle body and comprising a cylindrical cover 1 defining an interior volume 2 intended to receive the male part M.
• the female part comprises, mounted in cantilever on a bottom plate 3 closing the cover 2 towards the rear, a tubular guide 4 comprising an annular end piece 5 and housing a coaxial tubular element 6 internally defining a fluid conduit 7 connected, via an outlet pipe 8, to a tank of liquid vehicle fuel (not represented).
• the duct 7 is normally closed at its front end by a valve 9 urged axially by a spring against a seat formed by an annular part 60 at the front end of the tubular element 6.
• the male part M comprises a external tubular part 10 extended by a tubular end portion 11 and enclosing a tubular mandrel 12 defining a downstream portion 13 of a filling circuit connecting, via an upstream pipe 14, to a circuit for supplying pressurized liquid fuel (not shown) of the filling station which includes the gun 50, M.
• the duct portion 13 is normally closed downstream by a valve 15 axially elastically pressed against a seat formed by an annular piece 16 at the end of the mandrel 12.
• the annular end piece 5 of the tubular element 4 of the female part F comprises at least one, typically two pivoting valves in the form of a half-disc 17, opening inwards, behind an axial annular sliding surface 18 intended to receive the mandrel 12 of the male part M.
• the annular end part 11 of the latter also comprises at least one flap 19, pivoting inwards, advantageously two flaps or half-discs, in front of a sliding O-ring 20 of metal or PTFE type elastomer intended to cooperate in axial sliding with the periphery of the tubular guide 4 of the female part F.
• One of the isolation valves 9,15 in this case the valve of the male part 4 of the part m âle M in the embodiment shown, comprises a rod 21 extending forwardly beyond the annular end piece 16.
• the arrangement according to the invention allows easy and safe handling, easily robotized, the hot and cold seals being made in a single translational operation.
• the cold parts remain isolated from ambient humidity thanks to the flaps 17 and 19, thus avoiding the formation of frost on the cold parts, and can be purged by a neutral gas, typically helium, admitted via a circuit 70 ( Figure 2), with compression / expansion cycles carried out before the cryogenic fluid passes, for example also under control of the trigger 51.
• the system according to the invention prevents any leakage of cryogenic liquid to the outside, enables fast cold thanks to the little massive constituent elements, limiting the thermal loss on line, authorizes the immediate disconnection, even when the parts are cold and allows an immediate reuse also, if necessary, after disconnection.
• the female part F which is the on-board part, has the simplest possible configuration, and therefore inexpensive.
• the hot seal 20 is located on the male part M, on the filling station side therefore, which allows safer maintenance of this part.
• the various structural elements of the male and female parts, as well as the flaps 17 and 19, are advantageously made of stainless steel.
• the end of the tubular guide 4 of the female part F is advantageously closed, in non-connection condition, by a clip-on or screw-on plug 30, made of plastic material, to prevent the penetration of dust. in the sliding surface 18 of the female part F.

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Filling Or Discharging Of Gas Storage Vessels (AREA)
• Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
• Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=34708033

Family Applications (1)

Country Status (8)

Families Citing this family (16)

Family Cites Families (25)

• 2004
  • 2004-01-19 FR FR0450095A patent/FR2865260B1/fr not_active Expired - Fee Related
  • 2004-12-10 KR KR1020067014344A patent/KR20060126722A/ko not_active Application Discontinuation
  • 2004-12-10 CA CA002551435A patent/CA2551435A1/fr not_active Abandoned
  • 2004-12-10 US US10/585,171 patent/US20070155224A1/en not_active Abandoned
  • 2004-12-10 EP EP04816531A patent/EP1718560A1/de not_active Withdrawn
  • 2004-12-10 WO PCT/FR2004/050677 patent/WO2005077812A1/fr not_active Application Discontinuation
  • 2004-12-10 CN CNA2004800402451A patent/CN1902124A/zh active Pending
  • 2004-12-10 JP JP2006548331A patent/JP2007523296A/ja not_active Withdrawn

Non-Patent Citations (1)

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