Fuel filling device and vehicle fuel tank filling assembly

Abstract

Fuel Filling Device and Vehicle Fuel Tank Filling Assembly. The present invention relates to a filling device (5) coupled with a nozzle (580). The device comprises a ball holder (15) and a locking ball (170) movable between retracted and locked positions. A valve (175) is movable within the ball holder between rear and forward positions. A locking ring (330) is movable between a locking position that holds the locking ball in the locked position, and an unlocked position. A coupling ball (400) is movable between a first position that prevents the valve from reaching its forward position, and a second position.A drawer (405) is pushed by its end between an engaged position that holds the locking ball in the retracted position, and a disengaged position. An elastic element (470) moves the drawer to its engaged position, and an elastic element (485) moves the locking ring to its locked position. See Figure 1 for abbreviations.

Description

Title of the invention: Fuel filling device and vehicle fuel tank filling assembly

[0001] The present invention relates to a fuel filling device and a vehicle fuel tank filling assembly comprising such a filling device.

[0002] Connection assemblies for filling liquid fuel of competition vehicles, in particular two-wheelers, equipped with a filling nozzle suitable for being connected to filling devices.

[0003] It is particularly known from EP1526319 to use female filler elements equipped with a nozzle detection device, by pressing on a fixed part of the nozzle, which controls the radial movement of a movable locking hook between a release position and a gripping position on the nozzle. The body of the female element then comes to rest against the nozzle. The hook releases a locking ring which, by advancing relative to the female body, locks the female element with the nozzle and ultimately causes the fuel and vent valves of the female element to open by pushing back a nozzle valve.

[0004] The locking / unlocking and opening / closing functions of the valves are performed in a single, positive movement by the operator, such that the locking and filling steps are indistinguishable. The lack of differentiation between the filling and locking steps could lead to filling being activated even when the device is not properly locked, which could result in leaks.

[0005] On the other hand, the locking action with the opening of the valves is carried out by manipulating the roller handles, which may seem tedious.

[0006] The aim of the invention is therefore to propose a fuel filling device that improves the locking function and provides configurable safety functions for refueling vehicles while ensuring operator safety.

[0007] To this end, the invention relates to a fuel filling device configured to be coupled with a fitting connected to a vehicle tank, the filling device comprising: - a ball holder, comprising: • a tubular ball-carrier body extending along a main axis between a rear and a front part of the body of ball holder, the front part defining a receiving opening for the end piece, • a tubular valve seat extending into the receiving opening of the ball bearing body along the main axis, - at least one locking ball (170), received in a first radial housing formed in the front part of the ball holder body, and movable in the first radial housing between a retracted position and a locking position in which: • said at least one locking ball is radially less eccentric with respect to the main axis than in the retracted position, and • said at least one locking ball protrudes into the receiving opening, - a valve, comprising: • a valve body, which is tubular and extends along the main axis between a front end of the valve body and a rear end of the valve body, the valve body defining an external radial valve surface and forming a flow channel suitable for fluid connection to a rear valve filling channel, • a distribution passage, connected to the flow channel and arranged radially to the main axis at the front of the valve body, and

[0008] the valve being mounted in the ball holder such that: • the external radial surface of the valve is in contact with an internal surface of the ball holder body, • The valve is movable in translation along the main axis relative to the ball carrier between a rear position, in which the valve seat obstructs the distribution passage, and a front position, in which the valve's distribution passage is unobstructed. • a tubular locking ring surrounding the ball holder and movable between: • a locking position, in which the locking ring is capable of holding said at least one locking ball in the locked position, and • an unlocking position in which said at least one locking ball is free to reach the retracted position, • at least one coupling ball, axially fixed to the ball carrier and radially movable to the main axis between: • a first position, in which said at least one coupling ball prevents the valve from reaching its forward position, said at least one coupling ball being held in the first position when the locking ring is in the unlocked position, and • a second position, in which at least one coupling ball allows the valve to move towards its forward position, • a spool, movable in an annular space defined between an outer surface of the valve seat and the inner surface of the front part of the ball holder body, the spool being configured to be pushed by the end along the main axis between: • an engaged position in which the drawer is capable of holding said at least one locking ball in the retracted position, and • a clear position in which said at least one locking ball is free to reach its locking position, • a first elastic element capable of moving the drawer from its disengaged position to its engaged position, and • a second elastic element capable of moving the locking ring from its unlocked position to its locked position.

[0009] Thanks to the invention, and in particular thanks to the locking ring, the locking phase of the filling device is secured. Indeed, in the event of misalignment of the filling device, at least one locking ball prevents the locking ring from advancing, thus preventing the valve from opening. This avoids the risk of leakage in the event of a poor connection. Furthermore, the presence of the second elastic element allows the device to be locked without the need for external force, and to remain locked onto the nozzle. Thus, the locking mechanism is secure.

[0010] According to other advantageous aspects of the invention, the fuel filling device comprises one or more of the following features, taken individually or in any technically possible combination:

[0011] - the second elastic element rests on the ball holder;

[0012] - in the engaged position of the drawer, said at least one locking ball in retracted position is suitable for maintaining the locking ring in the unlocked position;

[0013] - the external radial surface of the valve is configured to maintain said at least a coupling ball in its second position when the valve is in the forward position;

[0014] - the filling device includes a third elastic element capable of moving the valve towards its rear position, and to maintain the valve in the rear position when the spool moves from the engaged position to the disengaged position;

[0015] - the filling device includes an operating ring, mounted around of the locking ring and mobile in translation along the main axis, between an advanced position and a retracted position between which the operating ring can drive the locking ring from its locking position to its unlocking position;

[0016] - the external radial surface of the valve includes at least one groove which extends parallel to the main axis, said at least one groove being suitable for receiving said at least one coupling ball and allowing, when said at least one coupling ball is in its first position, a translation of the valve relative to the ball holder along the main axis over a range defined by a longitudinal length of said at least one groove;

[0017] - the ball holder includes at least one second radial housing arranged at the rear of the first radial housing, said at least one coupling ball being capable of translating between its first and second position through said at least one second radial housing and the locking ring includes an internal groove configured to receive said at least one coupling ball in its second position so that said at least one coupling ball maintains the locking ring in the locking position;

[0018] - the filling device includes safety means configured for take a first configuration and a second configuration so that, when the safety means are in their first configuration, the safety means are able to drive the locking ring from the locking position to the unlocking position in a recoil movement of the valve between an intermediate position, located relative to the ball carrier between the front position and the rear position, and the rear position;

[0019] - when the security means are in their second configuration, the movement of the locking ring from the locking position to the unlocking position is independent of the recoil movement of the valve between its forward and rear positions;

[0020] - the safety means include a movable safety ball in a housing oblong of the ball holder, extending radially on each side of the oblong housing, and forming an axial stop for the valve relative to the ball holder in the rear position of the valve;

[0021] - the locking ring includes an internal groove configured to receive the safety ball, so that the locking ring is driven from the position of locking in the unlocking position by the safety ball pressing on the valve during the valve's recoil movement, between its front and rear positions;

[0022] - the filling device includes means for securing, in rotation around the main axis, the operating ring with the locking ring, the safety means evolving from their first to their second configuration by a rotational movement of the operating ring relative to the ball holder;

[0023] - the drawer rests axially on the ball holder in its disengaged position;

[0024] - when the valve is in the forward position, the valve seat and the valve form an annular space fluidly connected to a vent channel located at the rear of the device.

[0025] The invention also relates to a vehicle fuel tank filling assembly, the assembly comprising a nozzle, configured to be mounted on the vehicle and connected to a vehicle tank, and a filling device as defined above suitable for being coupled to the nozzle, the nozzle comprising: - a butt body configured to push the filling device drawer from its engaged position to its disengaged position during coupling of the butt and the filling device, the butt body comprising an external peripheral groove adapted to receive said at least one locking ball, when said at least one locking ball is in the locked position, and - a valve that moves axially in the end body between an advanced position, in which the valve bears against a sealing seat of the end body, and a retracted position, in which the valve is away from the sealing seat.

[0026] The invention will become clearer upon reading the following description, given solely by way of non-limiting example, and made with reference to the drawings in which:

[0027] [Fig-1] [Fig.1] is a cross-sectional view of a filling assembly, in which a filling device in a first configuration is uncoupled from an end;

[0028] [Fig.2] The [Fig.2] is a perspective view of a ball holder and a locking ring of the filling device of the [Fig.1];

[0029] [Fig.3] The [Fig.3] is a view similar to the [Fig.1], the filling device being brought closer to the end to prepare for coupling;

[0030] [Fig.4] The [Fig.4] is a view similar to the [Fig.1], the filling device being in a first locking stage;

[0031] [Fig.5] The [Fig.5] is a view similar to the [Fig.1], the filling device being in a second locking stage;

[0032] [Fig.6] Fig.6 is a view similar to Fig.5, the filling device and the ends being misaligned,

[0033] [Fig.7] [Fig.7] is a view similar to [Fig.1], the filling device being locked at the end;

[0034] [Fig.8] The [Fig.8] is viewed similarly to the [Fig.1], the filling device being in a filling phase;

[0035] [Fig.9] [Fig.9] is a view similar to [Fig.1], the filling device being in an automatic unlocking phase;

[0036] [Fig. 10] The [Fig. 10] is a view similar to the [Fig.1], the filling device being unlocked from the end;

[0037] [Fig. 11] The [Fig. 11] is a view similar to the [Fig.9], the filling device being in a second configuration;

[0038] [Fig. 12] The [Fig. 12] is similar to the [Fig. 10], the filling device being in a second configuration.

[0039] A fuel filling assembly 1 according to the invention is shown in Figures 1 to 12. The fuel filling assembly 1 is configured to fill a vehicle tank 3, not shown, with fuel.

[0040] The filling assembly 1 consists of a filling device 5, referred to as a female element or female fitting. The filling device 5 is intended to be attached to a filling pipe 10.

[0041] The filling device 5 includes a ball holder 15. The ball holder 15 includes a ball holder body 20. The ball holder body 20 is tubular and centered around a main axis XL. The ball holder body 20 extends along the main axis XI, between a rear part 25 and a front part 30. The front part 30 defines a receiving mouth 35.

[0042] The ball holder body 20 is delimited by an inner surface 40 and an outer radial surface 45. The inner surface 40 is preferably radial to the main axis XI and delimits an internal volume 47 of the ball holder body 20.

[0043] For the present description, terms such as "axial," "radial," and "longitudinal" are defined with respect to the principal axis XL. In this case, for example, an "axial surface" extends perpendicularly to the principal axis XI, a "radial surface" extends parallel to the principal axis XI and around the principal axis XL. Terms such as "front" and "distal" refer to a front direction Al extending from the rear portion 25 toward the front portion 30 parallel to the principal axis XL. Terms such as "back" and "proximal" refer to a back direction A2 opposite to the front direction AL. A "front surface" is oriented in the front direction Al, a "back surface" is oriented in the back direction A2. Terms such as "inside," "internal," "outside," and "external" are defined with respect to the main axis XI. In this case, for example, "an internal surface" is oriented towards or closer to the main axis XI and "an external surface" is oriented in the opposite direction to the main axis XI or further away from the main axis XI.

[0044] The ball holder body 20 has at least one first radial housing 50. In this example, approximately twenty first radial housings 50 are provided in the front portion 30. Each of the first radial housings 50 passes radially through the entire front portion 30 of the ball holder body 20. The first radial housings 50 are centered and evenly distributed around the main axis XL

[0045] The rear part 25 includes a crown 55. The crown 55 extends radially to the main axis XI from the outer radial surface 45 in a direction opposite to the main axis XL. The crown 55 defines an axial surface 60 turned in the forward direction Al and an axial surface 65 opposite to the axial surface 60.

[0046] The crown 55 has a circular axial groove 70. The circular axial groove 70 is formed in the axial surface 60 and is centered around the main axis XL

[0047] The ball holder body 20 also has four holes 75. Each of the holes 75 passes radially through the entire ball holder body 20. The holes 75 are centered and equally distributed around the main axis XL. The holes 75 are located between the first radial recesses 50 and the rear portion 25 relative to the main axis XL.

[0048] The outer radial surface 45 of the ball holder body 20 has pairs of longitudinal grooves 80 located between the holes 75 and the rear portion 25. In this example, five pairs of longitudinal grooves 80 are formed on the outer radial surface 45. The pairs of longitudinal grooves 80 extend parallel to the main axis XL. The pairs of longitudinal grooves 80 are centered and equally distributed around the main axis XL. Each pair of longitudinal grooves 80 comprises a longitudinal groove 85 and a second longitudinal groove 90, angularly separated by approximately ten degrees around the main axis XL.

[0049] Advantageously, the ball holder body 20 comprises at least one second radial housing 95 arranged at the rear, along the rear direction A2, of the first radial housing 50. More precisely, at least one second radial housing 95 is provided at the rear, along the rear direction A2, of the pairs of longitudinal grooves 80. In this example, five second radial housings 95 are provided on the ball holder body 20. Each of the second radial housings 95 passes radially through the entire ball holder body 20. The second radial housings 95 are centered and equally distributed around the main axis XL

[0050] Advantageously, the ball-holder body 20 comprises at least one oblong recess 100. In this example, five oblong recesses 100 are provided on the body of ball bearing 20. Each of the oblong housings 100 passes radially through the body of the ball bearing 20 and extends parallel to the main axis XI. The oblong housings 100 are centered and equally distributed around the main axis XL. More precisely, the oblong housings 100 and the second radial housings 95 are centered and equally distributed around the main axis XI with an alternation of the oblong housings 100 and the second radial housings 95.

[0051] The ball holder 15 also includes a valve seat 110. The valve seat 110 is tubular and centered around the main axis XL. The valve seat 110 is delimited by an internal radial surface 115 and an external surface 120 which is preferably radial to the main axis XL. The internal radial surface 115 delimits an internal volume 125 of the valve seat 110.

[0052] The valve seat 110 includes a flange 130. The flange 130 extends radially to the main axis XI from the outer surface 120 in a direction opposite to the main axis XL. The flange 130 defines an axial surface 135 turned in the forward direction Al and an external radial surface 140.

[0053] The collar 130 has a circular axial groove 145. The circular axial groove 145 is formed in the axial surface 135 and is centered around the main axis XL

[0054] The first collar 130 also has four holes 150. Each of the holes 150 extends radially from the external radial surface 140 towards the main axis XL. The holes 150 are centered and equally distributed around the main axis XL.

[0055] The valve seat 110 is mounted in the internal volume 47 of the ball holder body 20, with the external radial surface 140 in contact with the internal surface 40 such that the valve seat 110 extends into the receiving opening 35. The receiving opening 35 and the valve seat 110 thus form an annular space 153 at the front of the ball holder 15, centered on the axis XL. The annular space 153 narrows at the front. More precisely, the annular space 153 is defined between the internal surface 40 and the external surface 120.

[0056] The valve seat 110 is mounted from the rear part 25 in the internal volume 47 of the ball holder body 20 and moved along the forward direction Al until the holes 150 are respectively in line with the holes 75.

[0057] The valve seat 110 is secured to the ball holder body 20 by means of four stop fingers 155, each consisting of a screw 160 and a clamping ring 165. Each of the stop fingers 155 is screwed into a respective bore 75 and a respective bore 150.

[0058] The sealing of the valve seat assembly 110 in the ball holder body 20 is ensured by an O-ring 167 positioned between the inner surface 40 and the outer radial surface 140.

[0059] The filling device 5 includes at least one locking ball 170. In this example, the filling device 5 includes about twenty locking balls 170. Each of the locking balls 170 is received respectively in a first radial housing 50. The locking balls 170 have a diameter dl70 greater than a thickness e20 of the ball holder body 20 and protrude from radial housings 50.

[0060] The locking balls 170 are movable in their respective first radial housing 50 between a retracted position and a locked position. In their respective locked position, each of the locking balls 170 is radially less eccentric with respect to the main axis than in its retracted position, and the locking ball 170 protrudes into the receiving opening 35.

[0061] The first radial housings 50 have, respectively, a housing bottom, not shown, to limit the fall of the locking balls 170 towards the main axis XL

[0062] In the following description the ball holder 15 is considered as a fixed element of the filling device 5, the other components of the filling device 5 being mobile or fixed relative to the ball holder 15.

[0063] The filling device 5 includes a valve 175. The valve 175 includes a valve body 180. The valve body 180 is tubular and centered around the main axis XL. The valve body 180 is delimited by an internal radial surface 185 and an external radial surface 190. The internal radial surface 185 delimits a flow channel 195.

[0064] The valve body 180 extends, parallel to the main axis XI, between a front end 207 and a rear end 205. The front end 207 includes a front axial face 200 which is flat and perpendicular to the main axis XL. The axial face 200 extends radially to the axis XI throughout the internal volume 47 and closes the flow channel 195 at the front end 207.

[0065] The rear end 205 is provided with a thread intended to be screwed into the rear filling line 10 of the valve 175, connected to a fuel storage system, not shown.

[0066] The valve 175 also includes a distribution passage 215. The distribution passage 215 is provided radially to the main axis XI through the front end 207 of the valve body 180. The flow channel 195 opens into the distribution passage 215.

[0067] The valve body 180 includes a flange 220. The flange 220 extends radially to the main axis XI from the external radial surface 190 in a direction opposite to the main axis XL. The flange 220 defines an axial surface 225 facing forward Al, an axial surface 230 opposite to the axial surface 225 and an external radial surface 235 connecting the axial surface 225 to the axial surface 230. The flange 220 is formed on the valve body 180 between the distribution passage 215 and the rear end 205 relative to the main axis XL

[0068] . The valve body 180 includes a flange 240. The flange 240 extends radially to the main axis XI from the external radial surface 190 in a direction opposite to the main axis XL. The flange 240 defines an external radial surface 245. The flange 240 is formed on the valve body 180 between the flange 220 and the rear end 205 relative to the main axis XL

[0069] . The valve 175 also includes a central body 250. The central body 250 is tubular and centered around the main axis XL The central body 250 is delimited by an internal radial surface 255 and an external radial valve surface 260. The internal radial surface 255 delimits an annular passage 265.

[0070] The central body 250 is mounted from the rear onto the valve body 180. The internal radial surface 255 is in contact with the external radial surface 235 and the external radial surface 245. A shoulder 270 of the central body 250 is abutted at the front against the axial surface 230, blocking the translation of the central body 250 parallel to the main axis XI in the forward direction AL

[0071] The valve includes a handle 275 mounted around the valve body 180 along the main axis XL. The handle 275 has a handwheel 277 and a peripheral annular partition 280 fixed to the handwheel 277 and extending from the handwheel 277 in the forward direction AL. The peripheral annular partition 280 forms, in the forward direction Al, a front chamber 285. The central body 250 is received at least partially in the front chamber 285.

[0072] The handle 275 also includes a vent channel 290. The vent channel 290 is formed in the handwheel 277 and opens into the annular passage 265. The vent channel 290 is inclined with respect to the main axis XL

[0073] A housing 295 is provided in the flywheel 277. The housing 295 passes through the flywheel 277 parallel to the main axis XI and opens into the front chamber 285.

[0074] The valve 175 includes a sight glass 300 indicating the connection status of the filling device 5. The sight glass 300 consists of a lens 305 and a piston 310. The sight glass 300 is housed in the recess 295 and protrudes into the front chamber 285. The piston 310 is movable, relative to the recess 295, parallel to the main axis XI between an advanced position and a retracted position in which the piston 310 protrudes less into the front chamber 285 than in the advanced position. The sight glass 300 is pushed back towards its forward position by a first spring 315. The lens 305 changes position depending on the position of the piston 310.

[0075] Advantageously, the external radial surface 260 of the valve 175 includes at least one first groove 320. In this example, five grooves 320 are provided on the external radial surface 260. Each of the grooves 320 extends parallel to the main axis XI. The grooves 320 are centered and equally distributed around the main axis XL

[0076] Advantageously, the external radial surface 260 of the valve 175 includes at least one second groove 325. In this example, five grooves 325 are provided on the external radial surface 260. Each of the grooves 325 extends parallel to the main axis XL. The grooves 325 are centered and equally distributed around the main axis XL. More precisely, the grooves 325 and the grooves 320 are centered and equally distributed around the main axis XI with an alternation of the grooves 325 and grooves 320.

[0077] The valve 175 is mounted in the ball holder 15. More precisely, the valve 175 is received in the internal volume 47, the external radial surface 260 being in contact with the internal surface 40 and the external radial surface 190 being in contact with the first internal radial surface 115.

[0078] The valve 175 is movable in translation parallel to the axis XI relative to the ball carrier 15 between a rear position and a front position.

[0079] When the valve 175 is in the rear position, the valve seat 110 closes the distribution passage 215. In other words, the front end 207 of the valve body 180 is received in the internal volume 125 of the valve seat 110 and the first internal radial surface 115 closes the distribution passage 215.

[0080] When the valve 175 is in the forward position, the distribution passage 215 is clear and the valve seat 110 and the external radial surface 190 of the valve body 180 form an annular space fluidly connected to the vent channel 290. Thus the front end 207 of the valve body 180 is selectively received in the receiving mouth 35 of the ball holder 15.

[0081] The filling device 5 includes a locking ring 330. The locking ring 330 is tubular and, centered around the main axis XL, the locking ring is delimited by an internal radial surface 335 and an external radial surface 340.

[0082] The locking ring 330 includes a conical mouth 345 diverging forward in the forward direction Al.

[0083] The locking ring 330 comprises four holes 350. Each of the holes 350 passes radially through the locking ring 330. The holes 350 are centered and equally distributed around the main axis XL. Each of the holes 350 has a quadratic shape, clearly visible in [Fig. 2]. The holes 350 are provided on the locking ring 330 at the rear, according to the rear direction A2, of the conical mouth 345.

[0084] The locking ring 330 includes a flange 355. The flange 355 extends radially to the main axis XI from the external radial surface 340 in a direction opposite to the main axis XL. The flange 355 defines an axial surface 360 ​​facing in the forward direction A1, an axial surface 365 opposite the axial surface 360, and an external radial surface 370 connecting the axial surface 360 ​​to the axial surface 365. The flange 355 is formed on the locking ring 330 at the rear, along the rear direction A2, of the holes 350.

[0085] The collar 355 has a circular axial groove 375. The circular axial groove 375 is formed in the axial surface 365 and is centered around the main axis XL.

[0086] The collar 355 has five configuration slots 380, visible in [Fig. 2]. Each of the configuration slots 380 passes radially through the collar 355. The configuration slots 380 are centered and equally distributed around the main axis XL.

[0087] Advantageously, the locking ring 330 includes at least one oblong groove 385. In this example, five oblong grooves 385 are provided on the internal radial surface 335. Each of the oblong grooves 385 extends parallel to the main axis XL. The oblong grooves 385 are centered and equally distributed around the main axis XL.

[0088] Advantageously, the locking ring 330 includes an internal groove 390. The internal groove 390 is annular and formed on the internal radial surface 335 so as to connect the oblong grooves 385 together.

[0089] The locking ring 330 is mounted on the ball holder 15 so that the internal radial surface 335 is in contact with the external radial surface 45.

[0090] The holes 350 are respectively in line with the holes 75 and the holes 150. Each of the stop fingers 155 passes through one of the holes 350 respectively. The quadratic shape of the holes 350 allows both a relative translational movement, parallel to the main axis XI, of the locking ring 330 with respect to the ball holder 15 and also a rotational movement, around the main axis XI, of the locking ring 330 with respect to the ball holder 15. The translational and rotational movements are limited to ranges defined by the quadratic shape and a size of the stop fingers.

[0091] More specifically, the locking ring 330 is movable in translation, parallel to the main axis XI, relative to the ball holder 15 between a locking position and an unlocking position.

[0092] When the locking ring 330 is in the locked position, the locking ring 330 is able to hold the locking balls 170 in the position of locking. More specifically, as shown in [Fig.7], when the locking ring 330 is in the locking position, the locking ring 330 is advanced in the forward direction Al relative to the ball carrier 15 and the internal radial surface 335 is in contact with the locking balls 170 and pushes them radially towards the main axis XI into their locking position.

[0093] When the locking ring 330 is in the unlocked position, the locking balls 170 are free to reach the retracted position. More specifically, as shown in [Fig. 1], when the locking ring 330 is in the unlocked position, the locking ring 330 is retracted in the rear direction A2 relative to the ball holder 15, and the conical opening 345 is opposite the locking balls 170, which allows the locking balls 170 to move towards their retracted position.

[0094] The filling device 5 includes at least one coupling ball 400. In this example, the filling device 5 includes five coupling balls 400. Each of the coupling balls 400 is respectively received in a second radial housing 95. The coupling balls 400 are axially fixed to the ball carrier and are, respectively, movable in translation radially relative to the ball carrier 15 between a first position and a second position.

[0095] When a coupling ball 400 is in its first position, the coupling ball 400 protrudes from the second radial housing 95 associated with one of the grooves 320. The coupling ball 400 thus limits the displacement parallel to the main axis XI of the valve 175 to a range defined by a longitudinal length of the associated groove 320. The coupling balls 400 are held in their first position when the locking ring 330 is in the unlocked position, the internal radial surface 335 being in contact with the coupling balls 400 and pushing them radially towards the main axis XI in their first position.

[0096] When a coupling ball 400 is in the second position, the coupling ball 400 allows the valve 175 to move towards its forward position and holds the locking ring 330 in the locked position. More specifically, when the locking ring 330 is in the locked position, the internal groove 390 is advanced, in the forward direction A1, opposite the coupling ball 400, so that the movement of the valve 175 towards its forward position radially pushes the coupling ball 400 towards its second position in the internal groove 390. When the coupling ball 400 protrudes radially into the internal annular groove 390, the coupling ball 400 no longer protrudes into the associated groove 320.

[0097] When the valve 175 is in the forward position, the external radial surface 260 locks the coupling balls 400 in their second position and the coupling balls 400, both housed in the second radial housing 95 and received in the internal groove 390, prevents the locking ring 330 from translating relative to the ball holder 15 and locks the locking ring 330 in its locked position.

[0098] The handle 275, the valve 175 and the ball holder 15 are considered to be fixed together in rotation around the main axis XI due to the assembly and the friction elements.

[0099] The filling device 5 includes a drawer 405. The drawer 405 is a part of revolution centered on the main axis XL. The drawer 405 is delimited by an internal radial surface 410 and an external radial surface 415.

[0100] The drawer 405 includes a front collar 420 which extends radially to the main axis XI from the internal radial surface 410 in the direction of the main axis XL. The front collar 420 defines an axial surface 425 turned in the forward direction Al, an axial surface 430 opposite the axial surface 425 and an internal radial surface 435 connecting the axial surface 425 to the axial surface 430.

[0101] The drawer 405 includes a rear collar 440 which extends radially to the main axis XI from the external radial surface 415 in a direction opposite to the main axis XL. The rear collar 440 defines an axial surface 445 turned in the forward direction Al, an axial surface 450 opposite to the axial surface 445 and an external radial surface 455 connecting the axial surface 445 to the axial surface 450.

[0102] The drawer 405 is mounted to slide in the annular space 153, the internal radial surface 435 being in contact with the external radial surface 115 and the external radial surface 415 being in contact with the internal radial surface 40.

[0103] The drawer 405 is movable in translation, parallel to the main axis XI, relative to the ball holder 15 between an engaged position and a disengaged position.

[0104] When the slide 405 is in the engaged position, the slide 405 is able to hold the locking balls 170 in the retracted position. More specifically, when the slide 405 is in the engaged position, the axial surface 445 is in front abutment against a shoulder 460 projecting from the inner surface 40 of the ball holder 15 and the external radial surface 415 is opposite the first radial recesses 50 blocking the radial translation of the locking balls 170 towards the main axis XI and pushing the locking balls 170 back into their unlocked position.

[0105] When the slide 405 is in the disengaged position, the locking balls 170 are free to reach their locking position. More precisely, when the slide 405 is in the disengaged position, the slide 405 is pushed rearward, in the rear direction A2, relative to the engaged position and advantageously bears axially on the ball holder 15. Indeed, the slide 405 is pushed back until the rear flange 440 is abutted rearward against the flange 130, so that the external radial surface 415 is set back relative to the first radial recesses 50 and does not obstruct the translation of the locking balls 170 from the retracted position to the locking position.

[0106] The filling device 5 includes a first elastic element 470 adapted to move the spool 405 to its engaged position. In this example, the first elastic element 470 is a spring. A first end 475 of the first elastic element 470 is housed in the circular axial groove 145 of the valve seat 110 of the ball holder 15, and a second end 480 of the first elastic element 470 is in contact with the axial surface 430 of the spool 405. The first elastic element 470 pushes the spool 405, in the forward direction A1, into its engaged position against the shoulder 460.

[0107] The filling device 5 includes a second elastic element 485 adapted to move the locking ring 330 from its unlocked position to its locked position. In this example, the second elastic element 485 is a spring.

[0108] Advantageously, the second elastic element 485 bears against the ball holder 15. More specifically, a first end 490 of the second elastic element 485 is housed in the circular axial groove 70 of the ball holder 15 and a second end 495 of the second elastic element 485 is housed in the circular axial groove 375 of the locking ring 330. The second elastic element 485 pushes the locking ring 330, in the forward direction Al, from its unlocking position to its locking position.

[0109] Advantageously, the filling device 5 includes a third elastic element 500 adapted to move the valve 175 towards its rear position. In this example, the third elastic element 500 is a spring. A first end 505 of the third elastic element 500 is in contact with the axial surface 225 of the flange 220 and a second end 510 of the third elastic element 500 is in contact with the flange 130 of the valve seat 110. The third elastic element 500 pushes the valve 175, in the rear direction A2, towards its rear position.

[0110] Advantageously, the filling device 5 includes an operating ring 515. The operating ring 515 is tubular and, centered around the main axis XL, the operating ring 515 is delimited by an internal radial surface 520 and an external radial surface 525. The internal radial surface 520 delimits a ring volume 530.

[0111] The operating ring 515 includes an internal shoulder 535 projecting into the ring volume 530.

[0112] The operating ring 515 comprises five configuration ports 540. Each of the configuration ports 540 passes radially through the operating ring 515 and opens into the ring volume 530. The configuration ports 540 are centered and equally distributed around the main axis XL

[0113] The operating ring 515 includes a collar 545. The collar 545 extends from the external radial surface 525 in a direction opposite to the main axis XL

[0114] The operating ring 515 is mounted around the locking ring 330. More precisely, the locking ring 330 is received in the volume of ring 530, the internal shoulder 535 providing a front stop to the collar 355 of the locking ring 330.

[0115] The operating ring 515 is movable in translation along the main axis XI relative to the ball carrier 15 between an advanced position and a recoiled position.

[0116] When the operating ring 515 is in the advanced position and the locking ring 330 is in the locked position, the locking ring 330 is entirely contained within the operating ring 515 around the main axis XL. The locking ring 330 does not protrude from the volume of the ring 530.

[0117] The movement of the operating ring 515 relative to the ball carrier 15 in the forward direction Al is limited by a ring 550 housed in a rear radial groove 555 of the operating ring 515. The axial surface 65 of the ball carrier 15 forms a front stop to the ring 550 and limits the movement of the operating ring 515 relative to the ball carrier 15.

[0118] When the operating ring 515 is in the retracted position, the configuration ports 540 are respectively opposite the configuration housings 380 of the locking ring 330.

[0119] The operating ring 515, between its forward position and its rearward position, can cause, by contact between the internal shoulder 535 and the collar 355, the locking ring 330 from its locking position to its unlocking position.

[0120] Advantageously, the filling device 5 includes safety means 560. In this example, the filling device 5 includes five safety means 560. The safety means 560 are balls in this example.

[0121] The safety balls 560 are, respectively, housed in the oblong recesses 100 of the ball holder 15. The safety balls 560 are free to move parallel to the main axis XI in the oblong recesses 100. The safety balls 560 protrude radially on each side of the oblong recesses 100. In particular, the safety balls protrude into the grooves 325 of the valve 175 and form an axial stop for the valve 175 relative to the ball holder 15 in the rear position of the valve 175.

[0122] The safety balls 560 are configured to take a first configuration and a second configuration. The filling device 5 is configured to take a first and a second configuration respectively. The filling device 5 is in its first configuration when the safety balls 560 are in their first configuration and the filling device 5 is in its second configuration when the safety balls 560 are in their second configuration.

[0123] When the safety balls 560 are in their first configuration, the safety balls 560 protrude radially into the internal groove 390 of the locking ring 330 so that the recoil movement, in the rear direction A2, of the valve 175 between an intermediate position, located relative to the ball holder 15 between the front and rear positions, and the rear position, displaces the safety balls 560, against the grooves 325, in the oblong recesses 100. The safety balls 560 then drive the locking ring 330 from the locking position to the unlocking position.

[0124] When the safety balls 560 are in their second configuration, the safety balls 560 protrude radially into the oblong grooves 385 of the locking ring 330 so that the movement of the locking ring 330 from the locking position to the unlocking position is independent of the recoil movement of the valve 175 between its forward and rear positions.

[0125] The filling device 5 includes means for rotationally securing the operating ring 515 and the locking ring 330. In this example, the securing means include at least one configuration housing 380 and one configuration orifice 540 suitable for receiving a rod not shown, with a diameter substantially smaller than the configuration housings 380 and the configuration orifices 540.When the operating ring 515 is in the retracted position and the configuration ports 540 are opposite the configuration ports 380, the rod is able to be inserted into one of the configuration ports 540 and one of the configuration ports 380, thus rotating the operating ring 515 with the locking ring 330 around the main axis XI, so as to move the safety balls 560 from their first configuration to their second configuration by a common rotational movement of the operating ring 515 and the locking ring 330 relative to the ball holder 15. Each configuration port 380 is therefore associated with a configuration port 540 opposite the configuration port 380.

[0126] The filling device 5 also includes one to four indexing balls 570, visible in Figures 11 and 12. Each indexing ball is received in one of the five associated configuration slots 380. At least one configuration slot 380 remains free, i.e., capable of receiving a rod inserted into the associated configuration orifice 540. Each of the indexing balls 570 is pushed radially in the direction of the main axis XI by a second associated spring 575 contained in a pusher 565 positioned in the configuration slot 380. Each of the indexing balls 570 thus protrudes from the internal radial surface 335 in the longitudinal groove 85 or the longitudinal groove 90 of a pair of associated longitudinal grooves 80.

[0127] The safety balls 560 assume the first configuration when the indexing balls 570 protrude into their respective longitudinal grooves 85, and the safety balls 560 assume the second configuration when the indexing balls 570 protrude into their respective longitudinal grooves 90. The configuration of the safety balls 560 is therefore changed by a rotation of the locking ring 330, around the main axis XI, relative to the ball holder 15.

[0128] The filling assembly 1 also includes an end fitting 580. The end fitting 580 is configured to be mounted on the vehicle and is connected to the vehicle's tank 3. The end fitting 580 is the complementary fluid connection element, referred to as the male or end fitting, to the filling device 5, the end fitting 580 being able to be inserted along the main axis XI with the filling device 5 when the end fitting 580 and the filling device 5 are coupled.

[0129] The end piece 580 includes an end piece body 585 configured to push the slide 405 of the filling device 5 from its engaged position to its disengaged position during the coupling of the end piece 580 and the filling device 5. The end piece body 585 is tubular and centered about a secondary axis X2. The end piece body 585 is delimited by an internal radial surface 590 and an external radial surface 595. The internal radial surface 590 delimits an end piece volume 600 connected to the reservoir 3.

[0130] The about body 585 includes an external peripheral groove 605 formed radially on the external radial surface 595. The external peripheral groove 605 is suitable for receiving the locking balls 170, when the locking balls 170 are in the locking position.

[0131] The end body 585 also includes a disc protrusion 610. The disc protrusion 610 extends radially from the external radial surface 595 in a direction opposite to the secondary axis X2. The external peripheral groove 605 is positioned, along the rear direction A2, behind the disc protrusion 610, the disc protrusion 610 partially delimiting the external peripheral groove 605. The disc protrusion 610 provides means for support and attachment to the reservoir 3, such that the external peripheral groove 605 is positioned, along the rear direction A2, behind and outside the reservoir 3.

[0132] The end body 585 includes a front shoulder 615 projecting from the internal radial surface 590. The front shoulder 615 forms an end mouth 620 restricted in relation to the end volume 600. The front shoulder 615 also forms a sealing seat for the end body 585.

[0133] The end 580 comprises a valve 625 formed of a tubular head 630 and a stem 635. The tubular head 630 is delimited by an internal radial surface 640, a surface external radial 645, an axial surface 650 directed along the front direction Al and extending from the internal radial surface 640 and an axial surface 655 opposite to the axial surface 650 and extending from the external radial surface 645.

[0134] The rod 635 is centered on the secondary axis X2 and extends in the forward direction Al from the axial surface 650.

[0135] The valve 625 is received in the about volume 600. The valve 625 is axially movable in the about body 585 between an advanced position and a retracted position.

[0136] When the valve 625 is in the forward position, a rear shoulder 660 formed on the external radial surface 645 of the head 630 is in contact with the front shoulder 615 of the end body 585, the valve 625 thus rests on the sealing seat 615 of the end body 585.

[0137] When the valve 625 is in the retracted position, the valve 625 is moved away, in the forward direction Al, from the sealing seat 615.

[0138] The seal between the end body 585 and the valve 625 is ensured by a seal 663 positioned between the sealing seat 615 and the head 630.

[0139] The end piece 580 also includes a guide seat 665. The guide seat defines a tubular guide volume 670 in which the rod 635 is able to slide along the secondary axis X2. The guide seat 665 is mounted in the end piece body 585 and closes the end piece volume 600 opposite the tubular head 630. Displacement of the guide seat 665, in the forward direction A1, relative to the end piece body 585 is limited by a ring 675 housed in an internal peripheral groove 680 of the end piece body 585.

[0140] The end piece 580 includes a third spring 685 bearing against the guide seat 665 on one side and against the axial surface 650 on the other. The third spring 685 pushes the valve 625 back into its forward position.

[0141] The end piece 580 includes a cover 690 with an O-ring 695. The cover is removable from the end piece body 585 and when mounted on the end piece body 585, the cover covers and protects the head 630 of the valve 625.

[0142] The steps for filling the tank 3 using the filling device 5 are described in the remainder of the description.

[0143] When a vehicle, for example a motorcycle, equipped with a nozzle 580, is parked at a fuel filling station (not shown) and equipped with the filling device 5, the filling device 5 is brought close to the nozzle 580 of the vehicle. The nozzle 580 is closed by its cover 690, and the filling device 5 holds the valve 175 in a rearward position on the valve seat 110 of the ball holder 15, such that the flow channel 195 is blocked. The balls The 560 safety balls are in their first configuration and the 560 safety balls are housed in the internal groove 390 of the locking ring 330.

[0144] As shown in [Fig. 1], the filling assembly 1 is uncoupled. The operator removes the cover 690 from the end piece 580 and aligns the filling device 5 with the end piece 580; the main axis XI and the secondary axis X2 are then coaxial. The operator manipulates the filling device by grasping the handwheel 277.

[0145] As shown in [Fig. 3], the filling device 5 is then brought closer to the axial face 655 of the valve 625, and the spool 405 is brought into contact with the end body 585. The locking balls 170 are held in the retracted position by the spool 405 in the engaged position. The locking balls 170 prevent the locking ring 330 from advancing, thus holding the locking ring 330 in the unlocked position. The safety balls 560 are in their initial configuration and protrude radially into the internal groove 390 of the locking ring 330. The third elastic element 500 holds the valve 175 in the rearward position. The coupling balls 400 are held radially in the grooves 320 of the valve 175 by the locking ring 330, and block a recoil movement, following the rear direction A2, of the valve 175.

[0146] The operator pushes the handwheel 277, in the forward direction A1, towards the end 580, as shown in [Fig. 4]. The front axial face 200 of the valve 175 makes contact with the axial surface 655 of the valve 625. Due to the spring force 470 exerted on the spool 405, the spool 405 remains in the engaged position. The valve 175 advances relative to the ball holder 15, along the forward direction A1, within the range permitted by the grooves 320, to release the safety balls 560 from the stop in the grooves 325. The safety balls 560 are no longer constrained by the valve 175. The coupling balls 400 find a proximal stop in the grooves 320 of the valve 175. The valve 175 remains held in this position and cannot advance forward, along the forward direction A1, relative to the ball holder 15.The longitudinal length of the groove 320 corresponds to a range of valve overtravel 175 relative to the locking ring 330, the valve making contact with the axial surface 655 of the valve without pushing it back.

[0147] As shown in [Fig. 5], the locking balls 170 are aligned with the outer peripheral groove 605 of the end body 585 when the spool 405 is pushed back, in the rear direction A2, by the end body 585 against the force exerted by the first elastic element 470. The locking balls 170 come to rest in the outer peripheral groove 605. The spool 405 bears against and is abutted rearward against the valve seat 110, which marks the end of the approach of the filling device 5 relative to the end 580. Alternatively, in particular if the spring force 470 is low, the slide 405 reaches its clear position before the valve 175 advances relative to the ball holder 15.

[0148] If the main axis XI and the secondary axis X2 are not coaxial, as shown in [Fig.6], the end body 585 can push back the slide 405 and release some locking balls 170 so that these locking balls 170 find a position in the external peripheral groove 605 of the end 580. However, other locking balls 170, visible in a plane perpendicular to the plane shown in particular, are in contact with an edge of the end body 585 and held in a retracted position, so that they hold the locking ring 330 in the unlocked position and coupling is not made possible.

[0149] Advantageously, the arrangement of the locking balls 170 and their close spacing limit the risk of poor connection of the filling device, which could have disastrous consequences in the event of a fuel spill without the filling assembly 1 being properly sealed. Thus, the locking balls 170 ensure a secure locking phase, since any locking ball 170 not engaged with the outer peripheral groove 605 of the end fitting 580 prevents the locking ring 330 from advancing if the filling device 5 is not aligned with the end fitting 580.

[0150] As shown in [Fig. 7], since the locking balls 170 no longer block the movement of the locking ring 330, the locking ring 330 is driven forward into its locking position by the second elastic element 485. The driving of the locking ring 330 by the second elastic element 485 allows it to be locked without requiring any external force on the second elastic element 485 and keeps the filling device 5 locked onto the end 580. This preliminary operation marks the locking stage before the valve opens, which is safer compared to the prior art.

[0151] The locking ring 330 reaches its locking position, against the fingers of the stop 155. The advance of the locking ring 330 drives the safety balls 560 forward, and the safety balls 560 reach their distal stop in their oblong housing 100. The valve 175 remains in radial contact with the valve seat 110. Indeed, when the spool 405 moves from the engaged to the disengaged position, the valve 175 is held in the rearward position by the third elastic element 500. Thus, locking is achieved before the distribution passage 215 is opened, since an operation against the third elastic element 500 is necessary and only possible once the coupling balls 400 have been pushed back into the internal groove 390 of the locking ring 330.Also, the valve travel range 175 allowed by the grooves 320 allows sequencing of the locking of the locking ring 330 and the opening of the valve. 175. In addition, the locking ring 330 is contained within the operating ring 515 and is not accessible, which secures the locking.

[0152] The operator continues the movement of bringing the flywheel 277 and the end piece 580 together. The external radial surface 260 of the valve 175 pushes the coupling balls 400 into the internal groove 390 of the locking ring 330, as shown in [Fig. 8]. The locking ring 330 is locked in the locked position. The distribution passage 215 extends axially beyond the valve seat 110 so that once the valve 625 is pushed back, the flow channel 195 is connected to the vehicle's reservoir 3. The valve 175 is advanced to its maximum, and the valve 625 is pushed back to its maximum so that a fluid channel gap is defined between the two connecting elements. The annular space 153 defined radially between the ball carrier 15 and the valve 175 allows the passage of vents which reach the annular passages 265 in the central body 250 of the valve 175 and then the vent channel 290 of the flywheel 277. The vents are recycled according to the state of the art of the technical field.The filling device 5 is in a filling phase, i.e., fuel distribution.

[0153] During the maximum proximity phase, the piston 310 of the sight glass 300 is pushed towards the lens 305. In the advanced position of the valve 175, the piston 310 bears against the ring 55 of the ball holder 15, which pushes it into a cooperative configuration with the lens 305 of the sight glass 300. The lens 305 then displays a different color than the color displayed when the piston 310 is not in contact with the lens 305, i.e., when the valve 175 is not in the advanced position. The sight glass 300 thus indicates a connection state of the filling device 5, when the mutual proximity of the handle 275 and the nozzle 580 allows the vehicle to be refueled. This display is useful to the operator, who can determine whether the pressure applied to the handle 275 is sufficient to create an optimal fluid flow space.

[0154] Figure 9 depicts a scenario where the operator releases handle 275, for example, in an incident situation. The third elastic element 500 pushes valve 175 rearward, in the rear direction A2. Valve 175 is then abutted rearward against the safety balls 560 engaged in the internal groove 390 of the locking ring 330, since the safety balls 560 are in their initial position. Valve 175 is in its intermediate position. The action of the third elastic element 500 returns the distribution passage 215 to the position of the valve seat 110, closing the distribution circuit. The third spring 685 also pushes the valve 625 forward, in the forward direction A1, blocking access to the reservoir 3.

[0155] The third elastic element 500 pushes the valve 175 further backward and drives the locking ring 330 from its locking position to its position of Release is achieved by means of the safety balls 560, which translate within the oblong housing 100 of the ball holder 15, as shown in [Fig. 10]. Thus, the safety balls 560 linearly lock the locking ring 330 and the valve 175 together during the recoil movement of the valve 175 from its forward to its rearward position. This movement occurs within the overtravel range of the valve 175, associated with the axial length of the groove 320. The recoil of the locking ring 330, in the rearward direction A2, pushes the coupling balls 400 into the grooves 320 of the valve 175 and radially constrains the coupling balls 400, which retain the valve 175 in its rearward position. The recoil of the locking ring 330 also radially releases the locking balls 170.The locking balls 170 reach the retracted position under the action of the first elastic element 470 which pushes the drawer 405 forward, in the forward direction AL. The action of the first elastic element 470 contributes to the separation of the filling device 5 and the end 580. The position reached is identical to the position shown in [Fig.3].

[0156] If the operator no longer has the filling device 5 in hand during the filling of the tank 3, the filling device 5 automatically disconnects without dripping from the about 580. If the vehicle has started, the device is automatically disconnected.

[0157] Thus, in the first configuration of the safety balls 560, when the operator releases the filling device 5 during the filling step, the safety balls 560 act on the locking ring 330 to mechanically disconnect the filling device 5 from the end 580, as seen previously.

[0158] In the second configuration of the safety balls 560, the release of the filling device 5 will not cause disconnection, the safety balls 560 not acting on the locking ring 330.

[0159] The two configurations of the 560 safety balls appear in the same embodiment. However, the invention provides a first alternative filling device, not shown, which structurally comprises only the functional elements of the first configuration according to a second, so-called "automatic" mode. The invention provides a second alternative filling device, not shown, which structurally comprises only the functional elements of the first configuration according to the first, so-called "manual" mode. These alternative embodiments do not require the configuration means described.

[0160] To configure the safety balls 560 of the filling device 5 decoupled from the end 580, the operating ring 515 must be retracted, in the rear direction A2, until the configuration holes 540 are aligned with the configuration slots 380 of the locking ring 330. The rod is inserted into a configuration orifice 540 and associated configuration housing 380 for rotationally linking the locking ring 330 and the operating ring 515. The configuration of the safety balls 560 is changed by a rotation of the locking ring 330 around the main axis XI relative to the ball holder 15.

[0161] When switching from one configuration to another, the indexing balls 'fall' into the associated grooves of the ball holder 15, which provides an audible indicator of switching for the operator, from one configuration to the other.

[0162] In the following description, the safety balls 560 are in their second configuration and protrude into the oblong grooves 385 of the locking ring 330.

[0163] The first steps of filling the tank 3 for the filling device 5 are identical to the steps shown previously until the filling assembly is in the configuration shown in Figure 17. The steps differ when the user releases the handle 275.

[0164] The third elastic element 500 pushes the valve 175 backwards, in the rear direction A2, and brings the distribution passage 215 back in view of the valve seat 110, which closes the distribution circuit. The valve 175 then rests against the rearward stop of the safety balls 560 and drives the safety balls 560 backward, along the rearward direction A2, in the oblong grooves 385, as shown in [Fig. II]. The rearward movement of the safety balls 560 does not affect the position of the locking ring 330 since the safety balls can move parallel to the main axis X in the oblong grooves 385. The locking ring 330 is held in the locked position by the second elastic element 485. If the filling device 5 is released by the operator, the filling device 5 remains coupled to the end 580.

[0165] The operator acts on the operating ring 515 and applies a pulling force in the rear direction A2. The internal shoulder 535 abuts against the collar 355 and drives the locking ring 330 into its unlocked position, which releases the locking balls 170, as shown in [Fig. 12]. This step is a prerequisite for the continuation of the disconnection, the advancement of the drawer 405, and the release of the filling device 5.

[0166] In an alternative not shown, the safety balls 560 are replaced by another means of driving the locking ring 330.

[0167] In an alternative not shown, the locking ring 330 and the operating ring 515 are fixed in translation.

[0168] In an alternative not shown, the filling device 5 includes an elastic element between the flywheel 277 and the operating ring 515 which pushes the operating ring 515 forward.

[0169] In an alternative not shown, the ball carrier 15 does not include a crown and the second elastic element 485 bears against the flywheel 277 of the valve 175. The operating ring 515 is stopped in translation, parallel to the main axis X, alternatively to the ring shown in its internal groove, for example by means of a stop finger butting in a longitudinal groove of the flywheel 277.

[0170] In an alternative not shown, the locking balls are replaced by segments or a component of alternative geometry.

[0171] In an alternative not shown, the internal groove 390 is replaced by a counterbore opening out at the rear of the locking ring 330, so that the coupling balls 400 do not constrain the axial movement of the locking ring 330, in the second position of the coupling balls 400.

[0172] In an alternative not shown, valve 175 is driven by a lever and roller mechanism.

[0173] Any feature described above for one embodiment or variant is applicable to the other embodiments and variants described above, insofar as this is technically possible.

Claims

1. Demands Fuel filling device (5), configured to be coupled with a nozzle (580) connected to a vehicle tank (3), the filling device (5) comprising: - a ball holder (15), comprising: • a tubular ball holder body (20) extending along a main axis (XI) between a rear part (25) and a front part (30) of the ball holder body (20), the front part (30) defining a receiving mouth (35) of the tip (580), • a tubular valve seat (110) extending into the receiving opening (35) of the ball holder body (20) along the main axis (XI), - at least one locking ball (170), received in a first radial housing (50) formed in the front part (30) of the ball holder body (20), and movable in the first radial housing (50) between a retracted position and a locked position in which: • said at least one locking ball (170) is radially less eccentric with respect to the main axis (XI) than in the retracted position, and • said at least one locking ball (170) protrudes into the receiving opening (35), - a valve (175), comprising: • a valve body (180), which is tubular and extends along the main axis (XI) between a front end (207) of the valve body (180), and a rear end (205) of the valve body (180), the valve body (180) defining an external radial valve surface (260) and forming a flow channel (195) suitable for being fluidically connected to a rear filling channel (10) of the valve (175), • a distribution passage (215), connected to the flow channel (195) and arranged radially to the axis main (XI) at the front of the valve body (180), and the valve (175) being mounted in the ball holder (15) such that: • the external radial surface of the valve (260) is in contact with an internal surface (40) of the ball holder body (20), • the valve (175) is movable in translation along the main axis (XI) relative to the ball carrier (15) between a rear position, in which the valve seat (110) closes the distribution passage (215), and a front position, in which the distribution passage (215) of the valve (175) is clear, • a tubular locking ring (330) surrounding the ball holder (15) and movable between: • a locking position, in which the locking ring (330) is capable of holding said at least one locking ball (170) in the locked position, and • an unlocking position in which said at least one locking ball (170) is free to reach the retracted position, • at least one coupling ball (400), axially fixed to the ball carrier (15) and radially movable to the main axis (XI) between: • a first position, in which said at least one coupling ball (400) prevents the valve (175) from reaching its forward position, said at least one coupling ball (400) being held in the first position when the locking ring (330) is in the unlocked position, and • a second position, in which said at least one coupling ball (400) allows the valve (175) to move towards its forward position, • a drawer (405), movable in an annular space (153) defined between an outer surface (120) of the seat of valve (110) and the inner surface (40) of the front part (30) of the ball holder body (20), the slide (405) being configured to be pushed by the end (580) along the main axis (XI) between: • an engaged position in which the slide (405) is able to hold said at least one locking ball (170) in the retracted position, and • a disengaged position in which said at least one locking ball (170) is free to reach its locking position, • a first elastic member (470) able to move the slide (405) from its disengaged position to its engaged position, and • a second elastic member (485) able to move the locking ring (330) from its unlocking position to its locking position.

2. Device (5) according to the preceding claim, wherein the second elastic member (485) bears against the ball holder (15).

3. Device (5) according to any one of the preceding claims, wherein in the engaged position of the drawer (405) said at least one locking ball (170) in the retracted position is capable of holding the locking ring (330) in the unlocked position.

4. Device (5) according to any one of the preceding claims, wherein the external radial valve surface (260) is configured to hold said at least one coupling ball (400) in its second position when the valve (175) is in the forward position.

5. Device (5) according to any one of the preceding claims, comprising a third elastic element (500) capable of moving the valve (175) towards its rear position, and of maintaining the valve (175) in the rear position when the slide (405) moves from the engaged position to the disengaged position.

6. Device (5) according to any one of the preceding claims, comprising an operating ring (515), mounted around the locking ring (330) and movable in translation along the main axis (XI), between an advanced position and a recoiled position between which the operating ring (515) can drive the locking ring (330) from its locking position to its unlocking position.

7. Device (5) according to any one of the preceding claims, wherein the external radial surface of the valve (260) comprises at least one groove (320) which extends parallel to the main axis (XI), said at least one groove (320) being able to receive said at least one coupling ball (400) and permitting, when said at least one coupling ball (400) is in its first position, a translation of the valve (175) relative to the ball holder (15) along the main axis (XI) over a range defined by a longitudinal length of said at least one groove (320).

8. Device (5) according to any one of the preceding claims, wherein: - the ball holder (15) comprises at least one second radial housing (95) arranged at the rear of the first radial housing (50), said at least one coupling ball (400) being able to translate between its first and second position through said at least one second radial housing (95), - the locking ring (330) comprises an internal groove (390) configured to receive said at least one coupling ball (400) in its second position such that said at least one coupling ball (400) maintains the locking ring in the locking position.

9. Device (5) according to any one of the preceding claims, comprising safety means (560) configured to take a first configuration and a second configuration such that, when the safety means (560) are in their first configuration, the safety means (560) are capable of driving the locking ring (330) from the locking position to the unlocking position in a recoil movement of the valve (175) between an intermediate position, located relative to the ball carrier (15) between the front position and the rear position, and the rear position.

10. Device (5) according to claim 9, wherein, when the safety means (560) are in their second configuration, the movement of the locking ring (330) from the locking position to the unlocking position is independent of the recoil movement of the valve (175) between its forward and rear positions.

11. Device (5) according to any one of claims 9 or 10, wherein the safety means (560) comprise a safety ball (560) movable in an oblong housing (100) of the ball holder (15), protruding radially from each side of the oblong housing (100), and forming an axial stop for the valve (175) relative to the ball holder (15) in the rear position of the valve (175).

12. Device (5) according to claim 11, wherein the locking ring (330) includes an internal groove (390) configured to receive the safety ball (560), such that the locking ring (330) is driven from the locking position to the unlocking position by the safety ball (560) bearing on the valve (175) during the recoil movement of the valve (175), between its forward position and its rear position.

13. Device (5) according to any one of claims 9 to 12, comprising means for securing, in rotation about the main axis (XI), the operating ring (515) with the locking ring (330), the safety means (560) evolving from their first to their second configuration by a rotational movement of the operating ring (515) relative to the ball holder (15).

14. Device (5) according to any one of the preceding claims, wherein the drawer (405) bears axially on the ball holder (15) in its clear position.

15. Device (5) according to any one of the preceding claims wherein, when the valve (175) is in the forward position, the valve seat (110) and the valve (175) form an annular space fluidly connected to a vent channel (290) provided at the rear of the device (5).

16. A vehicle fuel tank (3) filling assembly (1), the assembly (1) comprising a nozzle (580), configured to be mounted on the vehicle and connected to a vehicle tank (3), and a filling device (5) according to any one of the preceding claims adapted to be coupled to the nozzle (580), the nozzle (580) comprising: - a nozzle body (585) configured to push the slide (405) of the filling device (5) from its engaged position to its disengaged position during coupling of the nozzle (580) and the filling device (5), the nozzle body (585) comprising a peripheral groove external (605) capable of receiving said at least one locking ball (170), when said at least one locking ball (170) is in the locked position, and a valve (625) movable axially in the end body (585) between an advanced position, in which the valve (625) bears against a sealing seat (615) of the end body (585), and a retracted position, in which the valve (625) is away from the sealing seat (615).

Images