Fuel supply device
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- TOYODA GOSEI CO LTD
- Filing Date
- 2016-03-16
- Publication Date
- 2026-07-02
AI Technical Summary
Existing fuel supply devices for automobiles lack sufficient strength in the tubular portion of the filler neck body, which can lead to deformation and damage, and there is a need for downsizing these devices while maintaining functionality.
A fuel supply device with a filler neck body featuring a first rib integrated with the pipe guide to enhance strength, reduce clearance, and adjust the inner diameter to fit various fuel nozzles, along with a second rib to facilitate quick detection of the fuel level by a gas sensor, thereby preventing overflow.
The integrated ribs increase the strength and durability of the filler neck body, allow for downsizing, reduce rattling, and enable efficient fuel detection, preventing overflow and facilitating easy manufacturing.
Abstract
Description
Technical field
[0001] The present invention relates to a fuel supply device. Description of the state of the art
[0002] A fuel supply device having an opening in the center of a fuel passage for opening and closing the fuel passage is known as a fuel supply device designed for introducing supplied fuel into a fuel tank of a motor vehicle. JP 2009-83569 A describes a pipe guide arranged within a filler neck body and designed for inserting a dispensing nozzle toward a fuel tank and for suppressing fuel vapor generated by evaporation in the fuel tank and preventing fuel splashes from escaping the vehicle during refueling. JP 2012-116380 A describes a guide device for a dispensing nozzle in which a protrusion formed within a filler neck body engages with a fuel-tank-side outer circumferential surface of a pipe guide.JP 2003-507615 A describes a cooling pipe for an internal combustion engine that has a snap-fit connection mechanism in which a snap element is integrated for connecting an end of a pipe located inside to an end of a hose located outside. JP 2013-1285 A describes a fuel filter that has a vent configured to connect a space defined by an inner circumferential surface of a filler neck body and an outer circumferential surface of a tube located inside the filler neck body to the outside air. U.S. Patent No. 8,220,508 describes a tube having a plurality of openings configured to create a connection between the interior of a tubular tube and the exterior.
[0003] A known configuration of a fuel supply device comprises a filler neck pipe to be connected to a tubular section formed on a fuel tank side of a filler neck body for supplying fuel from a dispensing nozzle to a fuel tank. None of JP 2009-83569 A, JP 2012-116380 A, and JP 2003-507615 A describe a technique for increasing the strength of the tubular section of the filler neck body to prevent deformation and damage to the filler neck body. Pressing and connecting the filler neck pipe to cover the tubular section of the filler neck body creates a force exerted inward with respect to the tubular section. Accordingly, there is a need to increase the strength of the tubular section.There is also a need to increase the strength of the tubular section against an applied external force that differs from the stress caused by pressing on the filler neck pipe. The requirement for smaller vehicles also necessitates a reduction in the size of the fuel supply device mounted on the vehicle. SUMMARY
[0004] To solve at least some of the problems described above, the invention can be implemented through the following aspects or configurations. (1) According to one aspect of the invention, a fuel supply device is provided. This fuel supply device comprises a filler neck body configured to include a hollow fuel passage-forming section arranged to define a fuel passage through which supplied fuel passes, and an attachment section configured to fit into a tube arranged for introducing the supplied fuel into a fuel tank, a pipe guide arranged within the fuel passage-forming section and configured for inserting a dispensing nozzle for supplying the fuel, and a first rib provided at a position opposite the attachment section for arrangement between the filler neck body and the pipe guide and for contact with an outer circumferential surface of the pipe guide.In this aspect of the fuel supply device, the first rib increases the strength of the attachment section against an external force exerted on the inner circumference of the filler neck. The presence of the first rib reduces the gap between the fuel passage section and the outer circumferential surface of the guide tube and allows the inner diameter of the guide tube to be adjusted to match the diameter of the nozzle inserted into it. This reduces rattling between the guide tube and the nozzle. The presence of the first rib also ensures sufficient capacity of the fuel supply device without increasing the wall thickness, even if the axial length of the fuel supply device is reduced. This allows for a smaller fuel supply device. (2) In the fuel supply device of the foregoing aspect, the first rib can be integrated with the pipe guide in such a way that it projects from the outer circumferential surface of the pipe guide. This configuration of the fuel supply device allows for the simple manufacture of the rib in its position relative to the pipe guide according to the design specifications. There is no need to provide the first rib as a separate element distinct from the filler neck body and the pipe guide. This reduces the total number of components comprising the fuel supply device and simplifies its manufacture. (3) In the fuel supply device of the foregoing aspect, a fuel tank-side end of the pipe guide and a fuel tank-side end of the first rib may be located on a fuel tank side of a fuel tank-side end of the filler neck body. In the fuel supply device of this aspect, the first rib provided on the pipe guide may support an end of the attachment section on which the greatest force is exerted during the process of attaching the attachment section to the pipe. (4) In the fuel supply device of the foregoing aspect, the first rib may comprise a plurality of protrusions extending parallel to an axial direction of the pipe guide. In the fuel supply device of the foregoing aspect, the formation of a plurality of protrusions as the first rib on the pipe guide further increases the strength of the filler neck body against an external force exerted inwards from the mounting section. (5) In the fuel supply device of the foregoing aspect, the extent of the projection of the first rib in a radial direction at a fuel tank-side end in the direction of the fuel tank may be reduced. This configuration of the fuel supply device prevents the first rib from interfering with the insertion of the attachment section into the tube and allows the attachment section to be fitted into the tube without difficulty. (6) In the fuel supply device of the foregoing aspect, the pipe guide can guide the dispensing nozzle in a first direction from an opening in the filler neck body into which the dispensing nozzle is inserted in the direction of the fuel tank. The pipe guide can have an opening configured to connect the fuel passage to an outer circumferential space defined by the fuel passage section and an outer circumferential surface of the pipe guide. The fuel supply device can further comprise a second rib provided on a fuel tank side of the opening, configured to guide the fuel that flows back to the filler neck body after the fuel tank has been filled into the opening.A dispensing nozzle used to supply fuel to the fuel supply device may be equipped with a gas sensor located at the front end of the nozzle, which is inserted into the fuel supply device. This sensor is designed to prevent fuel from overflowing into the fuel supply device. However, under certain positioning conditions of the gas sensor on the nozzle relative to the fuel supply device's pipework, the fuel being supplied to the fuel supply device may be detected with a delay, causing fuel to overflow.In this aspect of the fuel supply device, the second rib formed along the opening is likely to direct the fuel being fed into the device, thus raising the fluid level, towards the opening. This configuration allows the gas sensor located at the front of the nozzle to detect the fluid level of the fuel being introduced into the opening in a predetermined direction. This aspect of the fuel supply device enables the nozzle's gas sensor to detect the fluid level of the supplied fuel more quickly, thereby preventing fuel overflow. (7) In the fuel supply device of the aspect mentioned above, the second rib may be formed adjacent to a section of the opening that differs from the fuel tank side of the opening. This configuration of the fuel supply device introduces the supplied fuel to raise the liquid level into the lower end of the opening, corresponding to the lowest position of the liquid level of the supplied fuel. This allows the fuel nozzle gas sensor to detect the liquid level of the supplied fuel more quickly. (8) In the fuel supply device of the aspect mentioned above, the second rib can be integrated with the pipe guide in such a way that it projects radially outward from the outer circumferential surface of the pipe guide. In the fuel supply device of this aspect, the second rib is formed in the pipe guide in which the opening is formed. This allows for the simple manufacture of the second rib at the position relative to the opening according to the design specifications. This reduces the total number of components arranged within the filler neck body and simplifies the manufacture of the fuel supply device. (9) In the fuel supply device of the aspect mentioned above, the second rib may be configured to project linearly parallel to the first direction. In the fuel supply device of this aspect, the second rib is configured parallel to the first direction, which corresponds to the direction in which the liquid level of the supplied fuel rises. This configuration facilitates the easier introduction of the supplied fuel, causing the liquid level to rise, into the opening. (10) In the fuel supply device of the aspect mentioned above, a plurality of the second ribs may be symmetrical with respect to the opening in the first direction. The fuel supply device of this aspect allows the fuel being supplied to be introduced more easily, so that the liquid level rises, into the lower end of the opening.
[0005] The invention can be implemented by any of the various aspects that are different from the fuel supply device, such as a motor vehicle on which the fuel supply device is mounted, and a method for manufacturing the fuel supply device.
[0006] According to the effects of the invention described above, the first rib increases the strength of the mounting section against an external force exerted on the inner circumference of the filler neck. The presence of the first rib reduces the gap between the fuel passage section and the outer circumferential surface of the pipe guide and allows the inner diameter of the pipe guide to be adjusted to match the diameter of the dispensing nozzle inserted into the pipe guide. This reduces rattling between the pipe guide and the dispensing nozzle inserted into the pipe guide. The presence of the first rib also ensures sufficient capacity of the fuel supply device without increasing the wall thickness, even if the length of the fuel supply device is reduced in the axial direction. This allows for a smaller fuel supply device. BRIEF DESCRIPTION OF THE DRAWINGS
[0007] Fig. Figure 1 is a perspective view showing a filler neck opening of a motor vehicle equipped with a fuel supply device according to an embodiment.
[0008] Fig. Figure 2 is a perspective view showing the insertion of a fuel nozzle to supply fuel to the fuel supply device.
[0009] Fig. Figure 3 is a schematic diagram showing the positional relationship of the fuel supply device to a fuel tank provided inside the motor vehicle.
[0010] Fig. 4A is a diagram showing a filler neck connected to a filler neck pipe,
[0011] Fig. 4B is a diagram showing the filler neck connected to the filler neck pipe,
[0012] Fig. 5 is a sectional view along the line M1-M1 in the Fig. 4A,
[0013] Fig. Figure 6 is a split-view drawing showing the filler neck pipe and the filler neck.
[0014] Fig. 7A is a view showing the left side of a pipe run,
[0015] Fig. 7B is a front view showing the pipe routing,
[0016] Fig. 7C is a view showing the right side of the pipe routing,
[0017] Fig. 7D is a rear view showing the pipe routing,
[0018] Fig. Figure 8 is a perspective view showing the pipe routing.
[0019] Fig. Figure 9 is a perspective view showing the pipe routing.
[0020] Fig. Figure 10 is a cross-sectional view showing an exemplary state in which fuel is being supplied to the filler neck.
[0021] Fig. Figure 11 is a rear view showing a pipe routing according to a modification.
[0022] Fig. Figure 12 is a perspective view showing the pipe routing of the modification.
[0023] Fig. Figure 13 is a rear view showing a pipe routing according to a further modification, and
[0024] Fig. Figure 14 is a rear view showing a pipe routing according to a further modification. DESCRIPTION OF EXECUTION FORMS(1) General structure of a fuel supply device FS
[0025] The Fig. Figure 1 is a perspective view showing the filler neck opening of a motor vehicle equipped with a fuel supply device FS according to one embodiment. Fig. Figure 1 shows the fuel supply device FS, which is configured to form a fuel passage for introducing supplied fuel into a fuel tank (not shown) provided within the motor vehicle, as well as elements arranged in the vicinity of the fuel supply device FS. A fuel cap FL is attached to the vehicle body of the motor vehicle in a manner capable of opening and closing. The fuel cap FL has a cap body FLa formed in a shape along the outer wall surface of the vehicle body. The cap body FLa is attached to the outer wall surface of the vehicle body by means of a hinge FLb in a manner capable of opening and closing. The space accessible by opening the fuel cap FL serves as the fuel filler neck chamber FR. An opening-closing device 10The fuel filler neck chamber FR is located in a fuel tank mounted on a base plate BP. The opening and closing device 10 For a fuel tank, a mechanism is designed to introduce fuel into a fuel tank through the fuel supply device FS without the use of a fuel cap. In particular, the opening and closing device 10 for a fuel tank a mechanism designed to open and close the fuel passage with an external force from a fuel nozzle after the fuel cap FL has been opened.
[0026] The Fig. Figure 2 is a perspective view showing the insertion of a fuel nozzle NZ to supply fuel to the fuel supply device FS. Fig. Figure 2 shows the state in which a front end NZa of the dispensing nozzle NZ is inserted into the opening-closing device. 10for a fuel tank for supplying fuel to the fuel supply device FS. According to this embodiment, the fuel cap FL is arranged so that it opens to the left when the fuel filler neck chamber FR is viewed from the front. The dispensing nozzle NZ, which is inserted into the opening-closing device 10 which is used for a fuel tank, is counterclockwise around an axis OL1 from the nozzle NZ to the opening-closing device 10 The fuel tank nozzle is rotatable. However, clockwise rotation of the nozzle NZ is limited because the fuel cap FL comes into contact with the nozzle NZ. According to a further embodiment, the positional relationship between the fuel cap FL and the nozzle NZ, which is integrated into the opening-closing device, can be 10 It is used for a fuel tank and may be modified in various ways.
[0027] The Fig. Figure 3 is a schematic diagram showing the positional relationship of the fuel supply device FS to a fuel tank FT provided inside the motor vehicle. The fuel supply device FS includes a filler neck. 100 , a filler neck pipe 40 , a vent pipe 50 , a flow control valve 60 and a shut-off valve 30 The filler neck 100 is connected to the fuel tank FT through the filler neck pipe 40 and the vent pipe 50 connected. The filler neck pipe 40 is connected to the fuel tank FT via the shut-off valve 30 connected. The vent pipe 50 is connected to the fuel tank FT via the flow control valve 60 connected. The vent pipe 50 It is located above the filler neck pipe. 40in the vertical direction, so that the supplied fuel passes through the filler neck pipe 40 passes through it and not into the vent pipe. 50 The fuel vapor, generated by evaporation in the fuel tank FT, flows from the fuel tank FT through the vent pipe. 50 to the fuel flow that occurs in the filler neck 100 trained, allowed to circulate. (2) Detailed configuration of the filler neck 100
[0028] The Fig. 4A and Fig. 4B are diagrams showing the filler neck 100 show the one with the filler neck pipe 40 is connected. In particular, the Fig. 4A a front view showing the filler neck 100 shows the one with the filler neck pipe 40 is connected, and the Fig. 4B is a view showing the right side of the filler neck. 100 shows the one with the filler neck pipe40 is connected. The filler neck 100 includes a filler neck body 110 , a mouthpiece 180 , which is provided in such a way that it is an upstream side of the filler neck body 110 covered, and a pipe guide 150 (in the Fig. 4A and Fig. 4B not shown), which are inside the filler neck body 110 is arranged. In the description of the embodiment, a fuel supply side (top side in the Fig. 4A and Fig. 4B) of the filler neck 100 referred to as the upstream side, and an opposite side of the filler neck 100 , which is connected to the filler neck pipe 40 is connected (underside in the Fig. 4A and Fig. 4B), is referred to as the downstream side.
[0029] As it is in the Fig. 4A and Fig. As shown in 4B, this is the filler neck body. 110Formed in a cylindrical shape, connecting the upstream side to the downstream side. The filler neck body 110 It features a fuel passage through which the supplied fuel flows. Details of the fuel passage and pipe routing are available. 150 will be described later. As it is in the Fig. As shown in 4B, the filler neck body includes 110 a vent 115 , which branches off from upstream to downstream. The vent opening 115 is connected to the vent pipe 50 (in the Fig. 3 shown) connected, so that it forms part of a path that carries the fuel vapor that passes through the vent pipe 50 The fuel vapor circulates and is introduced into the fuel passage. The path the fuel vapor takes is around an axis OL3 within the vent opening. 115 trained. The filler neck body 110is made of a resin material. The mouthpiece 180 is an element used to cover a circular opening on the upstream side of the inlet body 110 is provided. The mouthpiece 180 is made of a metal. The description of the embodiment specifies a direction from upstream to downstream, in which the fuel flowing into the filler neck... 100 The direction through which the fuel flows is defined as the +Y-axis direction. A direction parallel to a plane perpendicular to an axis OL2 that passes through the center of the fuel flow and intersects both the OL2 and OL3 axes is defined as the +Z-axis direction. An axis perpendicular to both the Y-axis and the Z-axis is defined as the X-axis.
[0030] The Fig. 5 is a sectional view along a line M1-M1 in the Fig. 4A. The Fig. 6 is a split-view drawing showing the filler neck pipe 40 and the filler neck 100 shows. The sectional view of Fig. 5 shows the filler neck 100 , which is connected to the filler neck pipe 40 is connected. The section view of Fig. Figure 6 shows a disassembled state of the respective components in the sectional view of Fig. 5. The filler neck 100 includes the filler neck body 110 , the mouthpiece 180 , which leads into an opening 110Pa on the upstream side of the filler neck body 110 is fitted, and the pipe routing 150 , which are inside the filler neck body 110 is arranged. The filler neck body 110 has an inner circumferential surface 110a on, which are used to internally form a fuel passage 100Pis provided and is designed in a cylindrical shape such that its cross-sectional area decreases in the downstream direction. The filler neck body 110 features a ribbed section 111 on, which is formed in a ribbed shape on an outer circumferential surface on the downstream side, so that the filler neck pipe 40 It can be pressed onto it. The vent opening 115 of the filler neck body 110 forms an introductory route 115P , which is arranged to introduce the fuel vapor that comes from the fuel tank FT through the vent pipe 50 to the fuel flow 100P around. The filler neck 100 is achieved by arranging the pipe routing 150 inside the filler neck body 110 and then attaching the mouthpiece 180 at the opening 110Pa of the filler neck body 110 manufactured.
[0031] The pipe routing 150 is a cylindrical element located in the filler neck body 110 It is attached and positioned there. The pipe routing 150 has an inner circumferential surface that forms a pipe routing path NZP as part of the fuel passage 100P forms. The inner circumferential surface of the pipe guide 150 The pipe is designed such that its cross-sectional area decreases from upstream to downstream. The pipe guide path NZP, whose cross-sectional area decreases from upstream to downstream, serves to insert the front end NZa of the dispensing nozzle NZ into the fuel passage. 100P is used in the downstream direction in the fuel passage 100P The pipe routing 150 features a steam guide section 152 on, which is designed in such a way that the fuel vapor, which passes through the introduction path 115P into the filler neck body 110is introduced, is introduced downstream. The detailed configuration of the steam guide section. 152 will be described later.
[0032] As it is in the Fig. As shown in section 5, lay the steam guide section 152 and the inner circumference 110a of the filler neck body 110 a room 158a fixed, which the introduction path 115P with the fuel flow 100P connects. The steam duct section 152 and the inner circumference 110a of the filler neck body 110 also lay a room 158b fixed, which is located upstream from the space 158a is located and not directly connected to the introduction path 115P is connected. At a position that relates to the space 158a The outer circumferential surface of the pipe guide is symmetrical with respect to the OL2 axis (position on the side of the Z-axis direction). 150 and the inner circumference 110aof the filler neck body 110 a room 158c fixed. The room 158a , the space 158b and the space 158c They are connected to each other by means of a labyrinth structure that is defined by the outer circumferential surface of the pipe guide. 150 and the inner circumference 110a of the filler neck body 110 is determined.
[0033] As it is in the Fig. As shown in section 5, the pipe routing 150 a reinforcing rib 151 on, which along an outer circumferential surface between the steam guide section 152 and a lower end 150y the pipe routing 150 to increase the strength of the pipework 150 is formed. The reinforcing rib 151 is formed parallel to the axis OL2 and projects around the axis OL2 from the outer circumferential surface of the pipe guide 150 radially outwards. According to this embodiment, the lower end is located 150ythe pipe routing 150 , which are located inside the filler neck body 110 is arranged, and a downstream lower end of the reinforcing rib 151 , which are located on the outer circumferential surface of the pipe guide 150 is designed to be closer to the fuel tank FT than a downstream lower end of the filler neck body 110 In other words, the lower end of the pipework. 150 and the lower end of the reinforcing rib 151 extend along the axial direction in such a way that they are downstream of the lower end of the filler neck body 110 are located. As it is in the Fig. As shown in Figure 5, the extent of the radial outward projection at the lower end of the reinforcing rib is 151 in the downstream direction gradually decreases, so that the reinforcing rib 151in an arc shape (R-shape) in cross-section, beveled along the axial direction. The fuel vapor, which passes through the introduction path 115P to the filler neck body 110 circulates, in the vicinity of a connection 100Pa below the lower end of the pipework 150 combined with the fuel supplied by the NZ pump nozzle. The reinforcing rib 151 corresponds to the first rib in the patent claims.
[0034] The filler neck pipe 40 includes a pressed-on section 40a , which is on the ribbed section 111 pressed on, a middle section 40b , which is on its downstream side with the pressed-on section 40a is connected, and an inflow section 40c , which is on its downstream side with the central section 40b is connected. The middle section 40bruns in the direction of the downstream end of the ribbed section 111 tapered, so that it has an inner diameter approximately equal to the inner diameter of the ribbed section 111 of the filler neck body 110 is the inlet section 40c forms the fuel passage 100P from the lower end 150y to the fuel tank FT. The fuel passage 100P has a diameter equal to the smallest diameter of the central section 40b at the lower end 150y the pipe routing 150 is. In other words, the middle section 40b extends downstream from the ribbed section 111 and has a larger diameter than the inlet section 40c The inner circumference of the inlet section 40c is arranged in such an eccentric way that it is at the lower end 150y the pipe routing 150with the inner circumference of the pipe guide 150 , which is located on the opposite side (the side of the –Z-axis direction) from the vent opening 115 is located below the vent opening 115 In the vertical direction, when the fuel supply device FS is installed in the vehicle, it is smoothly continuous. A sealing ring (not shown) is located between the ribbed section. 111 of the filler neck body 110 and the filler neck pipe 40 arranged in such a way as to prevent the liquid fuel and fuel vapor from escaping.
[0035] The Fig. 7A to Fig. 7D are four side views of the pipe routing 150 . The Fig. 7A is a view showing the left side of the pipe routing. 150 shows the Fig. 7B is a front view showing the pipe routing 150 shows the Fig. 7C is a view showing the right side of the pipe routing. 150 shows, and the Fig. 7D is a rear view showing the pipe routing 150 shows. The Fig. 8 and Fig. 9 are perspective views showing the pipe routing 150 Show the front view and the view of the right side of the pipework. 150 , which are in the Fig. 7B or Fig. Figures 7C show the front view and the view of the right side of the filler neck. 100 , who in the Fig. 4A and Fig. 4B is shown.
[0036] As it is in the Fig. 7A, Fig. 7B and Fig. 7C is shown, which is the steam guide section. 152 formed in a configuration that extends along the cylindrical outer circumferential surface of the pipe guide 150 It is bent in such a way that on the inside it is closer to the OL2 axis than the center is directed downstream. The steam guide section152 is configured in such a way that the fuel vapor entering the introduction path 115P around, not directly into the room 158c (in the Fig. (shown in Figure 5) flows around axis OL2 on the opposite side. The pipe routing 150 has a first connecting hole 156a and second connecting hole 156b (hereinafter collectively referred to as "connecting holes") 156a and 156b (can be designated) upstream of the steam guide section 152 open. The connecting holes 156a and 156b are arranged in such a way that the fuel flow 100P with the rooms 158a , 158b and 158c , which in the Fig. The five holes shown are connected. 156a and 156b are thus upstream of the steam guide section 152 designed so that the fuel vapor passing through the introduction path115P passes through the steam guide section 152 is introduced downstream and does not cause the fuel vapor to enter the fuel passage directly. 100P upstream of the filler neck 100 through the connecting holes 156a and 156b flows. In other words, the fuel vapor flows along the circumferential direction on the outer circumference of the pipe. 150 to the connecting holes 156a and 156b flowing calmly.
[0037] As it is in the Fig. 7C, Fig. 7D and Fig. As shown in 9, the pipe routing 150 a hole corresponding to a sensor 155 on, which is located on the cylindrical outer circumferential surface of the pipe guide 150 to connect the fuel passage 100P with the room 158c (in the Fig. 5) is designed. According to this embodiment, the hole corresponding to a sensor is 155an opening in the combined form of two rectangles, as seen in the Fig. 7D is shown. The hole corresponding to a sensor. 155 has an enlarged hole section 155a a hole which is designed along the axial direction such that it is wider open than the remaining section in the circumferential direction around the axis OL2. The hole corresponding to a sensor. 155 is on the vent opening 115 It is provided on the side opposite axis OL2 and is located below the vent opening. 115 in the state in which the fuel supply device FS is installed in the motor vehicle. The dashed line of Fig. 7D, which has the enlarged hole section 155a The line shown is a dummy line to illustrate the enlarged hole section. 155a and does not give the actual configuration of the pipework 150According to another embodiment, the hole corresponding to a sensor can 155 be trained in a different configuration.
[0038] As it is in the Fig. 7D and Fig. As shown in 9, the pipe routing 150 a first perforated rib 154a and a second perforated rib 154b on, which such along a downstream section of the hole corresponding to a sensor 155 are designed so that they are separated from the cylindrical outer circumferential surface of the pipe guide 150 project radially outwards. The first perforated rib 154a and the second perforated rib 154b are formed parallel to the OL2 axis. The first hole rib 154a and the second perforated rib 154b are designed at the corresponding positions along the axis OL2 such that they have the same length along the axis OL2 and the same height of radial outward projection from the outer circumferential surface of the pipe guide 150exhibit. In the following description, the first perforated rib can be found. 154a and the second perforated rib 154b together as "perforated ribs" 154a and 154b The perforated ribs are referred to as "the perforated ribs". 154a and 154b correspond to the second rib in the patent claims.
[0039] As it is in the Fig. 7B and Fig. As shown in section 8, the pipe routing 150 a first division rib 153a and a second dividing rib 153b on, which are from the cylindrical outer circumferential surface of the pipe guide 150 projecting outwards and away from the steam conduit section 152 are trained. As is the case in the Fig. The first division rib is shown in 7A. 153a along the OL2 axis such that it extends downstream from a first downstream end 152a located at an end on the downstream side of the steam guide section 152It is about. Accordingly, as it is in the Fig. 7C shows the second division rib 153b along the OL2 axis such that it extends downstream from a second downstream end 152b located at the other end on the downstream side of the steam guide section 152 This concerns the first division rib. 153a and the second division rib 153b are located at various positions on the pipework 150 However, they are formed, exhibit identical configurations, which are determined by the cylindrical outer circumferential surface of the pipe guide. 150 protrude. The first dividing rib 153a is formed parallel to the OL2 axis. The extent of the radial outward projection of the first division rib 153a It is maximal at its upstream end and gradually decreases downwards. The first division rib can be found in the following description. 153aand the second division rib 153b together as "dividing ribs" 153a and 153b “ are referred to as”. (3) Functions and beneficial effects of the reinforcing rib 151
[0040] The configuration of the above embodiment has the following advantageous effects.
[0041] The Fig. 10 is a sectional view showing an exemplary condition where the fuel FU is connected to the filler neck. 100 is supplied. Fig. Figure 10 shows the fuel FU (indicated by hatching) being supplied to a liquid level LL through a dispensing nozzle NZ inserted into the filler neck. 100is used. In general, a gas sensor GS is provided at a front end NZa of the dispensing nozzle NZ to detect the liquid level LL of the supplied fuel FU. The gas sensor GS is designed to detect air but not the fuel FU in liquid form, so that the liquid level LL of the fuel FU is detected. As described in the Fig. As shown in Figure 10, even when the gas sensor GS detects the liquid level LL of the supplied fuel FU and issues a signal to stop the supply of fuel FU, the fuel FU that remains inside the nozzle NZ and the like will still be supplied to the filler neck. 100 Fuel is supplied. The liquid level LL of the fuel FU therefore rises above the position of the gas sensor GS. Consequently, there is a need to increase the capacity of the filler neck to prevent the supplied fuel FU from overflowing from the filler neck.100 The configuration where the length of the filler neck 100 is reduced in the axial direction and the cross-sectional area of the filler neck 100 The increased level prevents an increase in the liquid level LL of the fuel FU supplied after the detection of the liquid level LL of the fuel FU by the gas sensor GS.
[0042] In the fuel supply device FS of the embodiment, the cross-sectional area of the filler neck body 110 with regard to increasing the cross-sectional area of the filler neck 100 increased. The increase in the diameter of the ribbed section. 111 , onto which the filler neck pipe 40 Pressing it on reduces the strength of the ribbed section. 111 in the case where the wall thickness of the ribbed section 111 is determined. The formation of the reinforcing rib. 151However, it increases the strength of the ribbed section. 111 against an external force exerted on the inner circumference. In the fuel supply device FS of the embodiment, the presence of the reinforcing rib reduces 151 a gap between the inner perimeter surface 110a of the filler neck body 110 and the outer circumferential surface of the pipe guide 150 This reduces rattling between the filler neck body. 110 and the pipe routing 150 The inner diameter of the pipe guide 150 The NZ setting can be adjusted according to the diameter of the dispensing nozzle used. This reduces rattling between the pipe guides. 150 and the one in the pipework 150 The NZ fuel nozzle is used. In the fuel supply device FS of the embodiment, the formation of the reinforcing rib increases. 151 the diameter of the filler neck 100, without taking into account the wall thickness of the filler neck 100 to enlarge, as it is in the Fig. Figure 10 shows that this configuration provides sufficient capacity for the filler neck. 100 even if the length of the filler neck 100 in the axial direction. This prevents an increase in the liquid level LL of the fuel FU, which is supplied to the dispensing nozzle NZ after the liquid level LL of the supplied fuel FU has been detected by the gas sensor GS, and allows for a reduction in the size of the filler neck. 100 .
[0043] In the fuel supply device FS of the embodiment, the reinforcing rib projects 151 in the radial direction from the outer circumferential surface of the pipe guide 150 This allows for easy production of the reinforcing rib. 151 at the position relative to the pipe routing 150according to the design specifications. Furthermore, there is no need to provide the reinforcing rib. 151 as a separate element that is separated from the filler neck body 110 and the pipe routing 150 This is different. This reduces the total number of components that make up the filler neck. 100 form, and facilitates the manufacture of the fuel supply device FS.
[0044] The fuel supply device FS of the embodiment contains, as described in the Fig. 5 and Fig. Figure 6 shows the downstream lower end. 150y the pipe routing 150 and the lower end of the reinforcing rib 151 on the downstream side or, in particular, on the fuel tank FT side of the downstream end of the filler neck body 110 . Consequently, in the fuel supply device FS of the embodiment, the reinforcing rib can 151 the pipe routing 150one end of the ribbed section 111 support, on which, during the pressing of the filler neck pipe, 40 on the ribbed section 111 where the greatest force is exerted.
[0045] In the fuel supply device FS of the embodiment, the extent of the radially outward projection of the reinforcing rib takes on 151 gradually decreases in the downstream direction. This configuration prevents the reinforcing rib from 151 the pressing on of the filler neck pipe 40 on the ribbed section 111 disrupts and allows for easy pressing on of the filler neck pipe 40 on the ribbed section 111 . (4) Functions and beneficial effects of the perforated ribs 154a and 154b
[0046] According to the embodiment, the perforated ribs 154a and 154b such on the downstream side of the hole corresponding to a sensor155 provided that they are located on the outer circumferential surface of the pipe guide 150 protrude and extend in the axial direction along the hole corresponding to a sensor 155 extend. The perforated ribs 154a and 154b , which are along the hole corresponding to a sensor 155 are designed to cause the fuel supplied by the NZ nozzle, which is inserted into the FS fuel supply device, to raise the liquid level, with it being likely that this will enter the hole corresponding to a sensor. 155 This configuration allows the gas sensor, which is provided at the front end NZa of the NZ nozzle and is located in the position corresponding to the hole of a sensor, to be introduced. 155In the state in which it is inserted into the fuel supply device FS, it corresponds to the liquid level of the fuel entering the hole corresponding to a sensor. 155 The configuration of the fuel supply device FS of the embodiment therefore enables the gas sensor for the dispensing nozzle NZ to detect the liquid level of the supplied fuel more quickly and thus prevent fuel overflow.
[0047] In the fuel supply device FS of the embodiment, the perforated ribs 154a and 154b designed to fit the hole corresponding to a sensor 155 adjacent and thus extending from the lower end of the hole corresponding to a sensor 155 extend such that they run along the downstream lower end of the hole corresponding to a sensor 155as well as along the other section of the hole corresponding to a sensor 155 are designed. In the fuel supply device FS of the embodiment, in this configuration the supplied fuel is directed into the lower end of the hole corresponding to a sensor. 155 A setting has been introduced that corresponds to the lowest position of the liquid level of the supplied fuel, causing the liquid level to rise. This allows the gas sensor for the NZ fuel nozzle to detect the liquid level of the supplied fuel more quickly.
[0048] In the fuel supply device FS of the embodiment, the perforated ribs 154a and 154b integrated in this way with the pipe routing 150 designed so that they extend radially outwards from the outer circumferential surface of the pipe guide 150 protrude. In the fuel supply device FS of the embodiment, the perforated ribs 154a and 154b on the pipe routing150 provided, in which the hole corresponding to the sensor 155 is designed. This allows for the easy production of the perforated ribs. 154a and 154b at the positions relative to the hole corresponding to a sensor 155 according to the design specifications. This reduces the total number of components within the filler neck body. 110 are arranged and facilitates the manufacture of the fuel supply device FS.
[0049] In the fuel supply device FS of the embodiment as described in the Fig. As shown in 7D, the hole ribs are 154a and 154b provided in a linear form parallel to the axial direction, such that it extends radially outwards from the outer circumferential surface of the pipe guide 150 protrude. In the fuel supply device FS of the embodiment, the perforated ribs 154a and 154bThe design is parallel to the axial direction, which corresponds to the direction in which the liquid level of the supplied fuel rises. This configuration allows for easier introduction of the supplied fuel into the hole corresponding to a sensor. 155 .
[0050] In the fuel supply device FS of the embodiment as described in the Fig. As shown in 7D, the first hole rib is 154a and the second perforated rib 154b with regard to the axial direction of the hole corresponding to a sensor 155 symmetrically arranged. In the fuel supply device FS of the embodiment, this configuration allows the liquid level to rise for easier insertion into the lower end of the hole corresponding to a sensor. 155 . B. Modifications
[0051] The invention is not limited to the foregoing embodiment; rather, various variations and modifications can be made to this embodiment without deviating from the scope of the invention. Some examples of a possible modification are described below.
[0052] The reinforcing rib can be designed with a notch that acts as a fragile section. Within the inlet, which incorporates the reinforcing rib and its fragile section, the reinforcing rib breaks in response to an applied external force, starting at the fragile section and proceeding before reaching the other part. This configuration protects the other part from potential damage. The fragile section is not limited to the notch but can be provided in any of several other configurations.
[0053] The Fig. 11 is a rear view showing a pipe routing 150b according to a modification. Fig. Figure 12 is a perspective view showing the pipe routing 150b the modification shows. The pipe routing 150b The modification differs from the pipe routing. 150 the above embodiment by the configuration of a hole corresponding to a sensor 155b , which is in the pipework 150b is formed, and of first and second perforated ribs 154ba and 154bb , which are located in the vicinity of the hole corresponding to a sensor 155b on the outer circumferential surface of the pipe guide 150b are trained. As indicated by the dotted line in the Fig. As shown in 11, the hole corresponding to a sensor 155b an enlarged hole section 155ba on, which is designed on its downstream section in such a way that it is more open than the remaining section in the circumferential direction about an axis OL2b of the pipe guide 150b The dashed line of Fig. 11 is a dummy line and does not show the actual configuration of the pipework. 150b .
[0054] As it is in the Fig. As shown in 11, the first hole rib is 154ba and the second perforated rib 154bb unlike the perforated ribs 154a and 154b in the foregoing embodiment provided in such a way that it does not correspond to the hole of a sensor 155b adjacent. In other words, the first hole rib 154ba and the second perforated rib 154bb The modification borders the hole corresponding to a sensor. 155b over respective sections of the cylindrical outer circumferential surface of the pipe guide 150b on. As it is in the Fig. Figure 11 shows the extent of the protrusion of the second hole rib. 154bb from the outer circumferential surface of the pipe guide 150b enlarged in the downstream direction. The position of the second hole rib 154bb differs from the position of the first hole rib 154ba along the OL2b axis of the pipe routing 150b and is located upstream from this position. The second hole rib 154bb is not a linear protrusion formed along the OL2b axis, but has an auxiliary rib. 154bb1 on, which is formed perpendicular to the OL2b axis. As it is in the Fig. As shown in 12, the first perforated rib has 154ba like the second perforated rib 154bb an auxiliary rib 154ba1 on, which is provided perpendicular to the OL2b axis. As described above, the configurations of the sensor-corresponding hole and the hole ribs can be modified in various ways, such as the sensor-corresponding hole 155b , which is in the hole guide 150b is formed, and the perforated ribs 154ba and 154bb , which are located in the vicinity of the hole corresponding to a sensor 155b are provided.
[0055] The Fig. 13 is a rear view showing a pipe routing 150c as shown in a further modification. The pipe routing 150c the modification that is in the Fig. As shown in 13, the pipe routing differs. 150 the above embodiment by the configuration of a hole corresponding to a sensor 155c , which is in the pipework 150c is formed, and a first and a second perforated rib 154ca and 154cb , which are located on the outer circumferential surface of the pipe guide 150c are trained. As is the case in the Fig. As shown in 13, the hole corresponding to a sensor 155c , which is located in the outer circumferential surface of the pipe guide 150c It is formed in a rectangular shape, with longer sides along the axial direction in the rear view. The first perforated rib 154ca is like the first perforated rib 154a of the above embodiment adjacent to the longer side of the hole corresponding to a sensor 155c formed. On the other hand, the second hole rib is 154cb unlike the second hole rib 154b In the foregoing embodiment, a protrusion is adjacent to the downstream shorter side of the hole corresponding to a sensor. 155c is provided, which is perpendicular to the axial direction of the hole corresponding to a sensor. 155cis and extends downstream along the axial direction. As it is described in the Fig. Figure 13 shows the length of the first hole rib. 154ca in the axial direction greater than the length of the second hole rib 154cb in the axial direction. A lower end of the first hole rib. 154ca and a lower end of the second hole rib 154cb They are located in the same positions in the axial direction. As with the perforated ribs. 154ca and 154cb , which are on the pipework 150c Since the modification process is designed, the configuration of the hole ribs can be modified in any number of different ways. The configuration of the hole corresponding to a sensor can also be modified in any number of different ways.
[0056] The Fig. 14 is a rear view showing a pipe routing 150d as shown in a further modification. The pipe routing 150d the modification that is in the Fig. As shown in 14, the pipe routing differs. 150 the above embodiment by the configuration of a hole corresponding to a sensor 155d , which is in the pipework 150d is formed, and a first and a second perforated rib 154da and 154db , which along a downstream section of the hole corresponding to a sensor 155d are trained. According to this modification, as it is described in the Fig. Figure 14 shows the downstream section of the hole corresponding to a sensor. 155d formed in a trapezoidal shape, with the opening area facing towards a lower end 150dy the pipe routing 150d increases. As it is in the Fig. As shown in 14, this is the first hole rib. 154da so adjacent to the hole corresponding to a sensor 155d provided that they face the downstream side of the hole corresponding to a sensor.155d extends in the axial direction. The second hole rib is located accordingly. 154db at the symmetrical position in relation to the hole corresponding to a sensor 155d and is so adjacent to the hole corresponding to a sensor 155d provided that they face the downstream side of the hole corresponding to a sensor. 155d extends in the axial direction. Like the perforated ribs. 154da and 154db With this modification, the hole ribs can extend in any of several suitable directions and do not necessarily have to extend along the axial direction.
[0057] There are various other modifications regarding the perforated ribs. 154a and 154b , which together with the hole corresponding to a sensor 155 are trained in pipe routing 150 to connect the fuel passage 100P with the room 158ais formed by the inner circumferential surface 110a of the filler neck body 110 and the outer circumferential surface of the pipe routing 150 is specified. For example, the perforated ribs do not necessarily have to be on the outer circumferential surface of the pipe guide. 150 as in the embodiment and the modifications described above, but they can be designed in such a way that they are separated from the inner circumferential surface of the filler neck body. 110 protrude radially inwards. The perforated ribs can also be described as extending from the filler neck body. 110 and the pipe routing 150 in the filler neck 100Separate elements may be provided. The configuration and number of perforated ribs can be modified in any number of different ways, and the number of perforated ribs may be only one, or it may be three or more, unlike in the embodiment and modifications described above. The perforated rib need not necessarily be formed in a linear shape in the rear view, as in the configurations of Fig. 7D, Fig. 11, Fig. 13 and Fig.14, but it can be in a curved shape or another suitable shape. The extent of the projection of the perforated rib is constant according to the embodiment and the modifications described above. However, according to a further modification, the extent of the projection of the perforated rib in the downstream direction can be increased or decreased. The projecting and extended perforated rib can have a through-hole in the circumferential direction. The extended perforated rib can be divided into separate sections. The perforated rib can be configured in any way such that the fuel, which raises the liquid level, flows back to the filler neck after filling the fuel tank FT. 100 flows into the downstream section of the hole corresponding to a sensor, which is formed in the pipe guide.
[0058] The invention is not limited to any of the embodiments, examples, and modifications described above, but can be implemented by a multitude of other configurations without departing from the scope of the invention. For example, the technical features of any or all of the embodiments, examples, and modifications corresponding to the technical features of each of the aspects described in the SUMMARY can be appropriately substituted or combined to solve some or all of the problems described above. Any of the technical features can be appropriately omitted, provided that the technical feature is not described herein as essential.
[0059] It is explicitly emphasized that all features disclosed in the description and / or the claims are to be considered separate and independent of one another for the purposes of the original disclosure as well as for the purpose of limiting the claimed invention, irrespective of the combinations of features in the embodiments and / or the claims. It is explicitly stated that all range specifications or specifications of groups of units disclose every possible intermediate value or subgroup of units for the purposes of the original disclosure as well as for the purpose of limiting the claimed invention, in particular also as a boundary of a range specification. QUOTES INCLUDED IN THE DESCRIPTION
[0060] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature
[0061] JP 2009-83569 A [0002, 0003] JP 2012-116380 A [0002, 0003] JP 2003-507615 A [0002, 0003] JP 2013-1285 A
[0002] US 8220508
[0002]
Claims
[1] Fuel supply device (FS), comprising: a filler neck body ( 110 ), which is designed to form a hollow fuel passage section ( 110a ), which is arranged to allow a fuel passage ( 100P ) specifies through which a supplied fuel passes, and an attachment section ( 111 ) includes, which is designed to fit into a pipe ( 40 ) is designed to introduce the supplied fuel into a fuel tank (FT), a pipe routing ( 150 ), which within the fuel passage-forming section ( 110a ) arranged and designed for the insertion of a fuel nozzle (NZ) for supplying the fuel, and a first rib ( 151 ), which are located in a position opposite the attachment section ( 111 ) for placement between the filler neck body ( 110 ) and the pipe routing ( 150) and for contact with an outer circumferential surface of the pipe guide ( 150 ) is provided. [2] Fuel supply device (FS) according to claim 1, wherein the first rib ( 151 ) integrated in this way with the pipe routing ( 150 ) is designed so that it is separated from the outer circumferential surface of the pipe guide ( 150 ) protrudes. [3] Fuel supply device (FS) according to claim 2, wherein a fuel tank (FT)-side end ( 150y ) the pipe routing ( 150 ) and a fuel tank (FT)-side end of the first rib ( 151 ) on a fuel tank (FT) side of a fuel tank (FT) side end of the filler neck body ( 110 ) condition. [4] Fuel supply device (FS) according to claim 2 or claim 3, wherein the first rib ( 151 ) comprises a plurality of protrusions that run parallel to an axial direction of the pipe guide ( 150 extend. [5] Fuel supply device (FS) according to one of claims 1 to 4, wherein the extent of the projection of the first rib ( 151 ) is reduced in a radial direction at a fuel tank (FT)-side end in the direction of the fuel tank (FT). [6] Fuel supply device (FS) according to claim 1, where the pipe routing ( 150 ) the fuel nozzle (NZ) in a first direction from a body opening ( 110Pa ) of the filler neck body ( 110 ), into which the fuel nozzle (NZ) is inserted in the direction of the fuel tank (FT), and the pipe routing ( 150 ) an opening ( 155 ) which is designed to allow the fuel passage ( 100P ) with an outer perimeter space ( 158a ) connects, which is formed by the fuel passage section ( 110a ) and an outer circumferential surface of the pipe routing ( 150 ) is determined, wherein the fuel supply device (FS) further a second rib ( 154a , 154b ) includes the opening on one fuel tank (FT) side ( 155 ) is provided and is designed so that the fuel which, after filling the fuel tank (FT), flows to the filler neck body ( 110 ) flows back into the opening ( 155 ) is introduced. [7] Fuel supply device (FS) according to claim 6, wherein the second rib ( 154a , 154b ) adjacent to a section of the opening ( 155 ), which is from the fuel tank (FT) side of the opening ( 155 ) is different, is trained. [8] Fuel supply device (FS) according to claim 6 or claim 7, wherein the second rib ( 154a , 154b ) integrated in this way with the pipe routing ( 150 ) is designed so that it is separated from the outer circumferential surface of the pipe guide ( 150 ) projects radially outwards. [9] Fuel supply device (FS) according to one of claims 6 to 8, wherein the second rib ( 154a , 154b ) is formed in such a way that it projects linearly parallel to the first direction. [10] Fuel supply device (FS) according to one of claims 6 to 9, wherein a plurality of the second ribs ( 154a , 154b ) in relation to the opening ( 155 ) is symmetrical in the first direction.