WO2010029989A1 - 自動車の給油口構造 - Google Patents
自動車の給油口構造 Download PDFInfo
- Publication number
- WO2010029989A1 WO2010029989A1 PCT/JP2009/065892 JP2009065892W WO2010029989A1 WO 2010029989 A1 WO2010029989 A1 WO 2010029989A1 JP 2009065892 W JP2009065892 W JP 2009065892W WO 2010029989 A1 WO2010029989 A1 WO 2010029989A1
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- fuel
- opening
- nozzle
- shutter
- filler
- Prior art date
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/04—Tank inlets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/04—Tank inlets
- B60K15/0406—Filler caps for fuel tanks
- B60K2015/0451—Sealing means in the closure cap
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/04—Tank inlets
- B60K2015/0458—Details of the tank inlet
- B60K2015/048—Arrangements for sealing the fuel inlet during filling
Definitions
- the present invention relates to a fuel filler opening structure for an automobile that is provided with a shutter that opens and closes a filler pipe and that is kept open by pushing the shutter with a nozzle for fueling.
- a shutter is provided that can be opened and closed in the vicinity of a filler opening into which a fuel nozzle can be inserted, and an annular operating ring is provided above the shutter.
- the diameter of the operating ring is expanded by the inserted nozzle, and the shutter is unlocked in conjunction with the diameter expansion of the operating ring.
- the fuel is erroneously supplied from the fueling nozzle without opening the shutter with the fueling nozzle.
- the fuel supplied from the nozzle for fuel supply flows (reversely flows) to the fuel filler port side, and the fuel that flows backward may be discharged from the fuel filler port to the outside and applied to the user.
- Lubricating nozzles are generally provided with a liquid level detection sensor at the tip of the nozzle.
- the liquid level detection sensor detects the fuel level.
- the supply of fuel is stopped based on the detection signal.
- the detection sensor fails, the fuel level cannot be detected by the detection sensor and the fuel supply cannot be stopped. For this reason, the fuel supplied from the nozzle for fuel supply flows backward to the fuel filler port side, the fuel that flows backward vigorously discharges to the outside from the fuel filler port, and the discharged fuel is applied to the user.
- the present invention relates to an automobile that prevents the fuel that is discharged from being applied to a user by gently discharging the fuel that has flowed back from the fuel filler port to the outside when the fuel supplied from the fuel nozzle is flowing backward to the fuel filler port side. It is an object to provide a fuel filler structure.
- a filler pipe having a filler opening into which a nozzle for refueling can be inserted and a shutter for opening and closing the filler pipe are provided, and the shutter is pushed by the nozzle for refueling.
- the fueling nozzle structure of the automobile in which the fueling nozzle can be inserted to the fueling position, with a predetermined interval between the shutter and the fueling port, First and second partition portions through which the oil supply nozzle can be inserted are provided, and a first opening through which the oil supply nozzle can be inserted is formed in the first partition portion.
- At least one first gap having a predetermined width in the circumferential direction is formed, and a second opening through which the oil supply nozzle can be inserted is formed in the second partition, and the second opening is circumferentially provided At least having a predetermined width
- One second gap is formed, and a labyrinth is formed between the shutter and the fuel filler opening by arranging the first gap and the second gap to be offset in the circumferential direction.
- An automobile fuel filler structure is provided.
- the first partition is an operating ring that releases the lock of the shutter by expanding the diameter of the first opening when the oil supply nozzle is inserted into the first opening.
- a filler pipe having a filler opening into which a nozzle for refueling can be inserted, and a shutter for opening and closing the filler pipe, and the shutter is the nozzle for refueling.
- An oil filling structure of an automobile that is kept in an open state when pushed in, and in which the oil supply nozzle can be inserted to a fuel supply position, and the oil supply nozzle is provided between the shutter and the oil supply opening.
- the partition has an opening through which the oiling nozzle can be inserted, and a chamfered portion is formed at a corner of the opening, whereby the opening
- An automobile fuel filler structure is provided that suppresses a flow rate of fuel flowing from the shutter side toward the fuel filler opening through a gap between the fuel filler nozzles.
- the chamfered portion is formed on the inner peripheral edge of the opening.
- the chamfered portion is an inclined surface.
- the chamfered portion is a convex curved surface.
- the first and second partition portions into which the nozzle for fueling can be inserted are provided, and the first and second partition portions are provided at a predetermined interval between the shutter and the fuel filler port. Furthermore, a first opening was formed in the first partition, and at least one first gap having a predetermined width in the circumferential direction was formed in the first opening. Furthermore, a second opening is formed in the second partition, and at least one second gap having a predetermined width in the circumferential direction is formed in the second opening. The first and second gaps were arranged offset in the circumferential direction to form a labyrinth between the shutter and the fuel filler opening.
- the flow rate of the backflowed fuel can be suppressed by the labyrinth.
- the fuel which flowed back can be discharged
- the first partition is composed of an operating ring.
- This operating ring is an existing member that unlocks the shutter when the oil supply nozzle is inserted into the first opening.
- a partition portion through which a nozzle for refueling can be inserted is provided, and a chamfered portion is formed at the corner of the opening of the partition portion. Therefore, it is possible to suppress the flow rate of the fuel that has flowed (returned) from the shutter side to the fuel supply port side through the gap between the opening of the partition portion and the fuel supply nozzle. Thereby, the fuel which flowed backward can be discharged
- the chamfered portion is formed on the inner peripheral edge of the opening and is formed of an inclined surface or a convex curved surface. Therefore, the flow rate of the fuel flowing between the inner peripheral edge and the fueling nozzle can be suppressed.
- FIG. 2 is an enlarged cross-sectional view taken along line 2-2 of FIG.
- FIG. 3 is a perspective view of a fuel filler structure shown in FIG. 2. It is sectional drawing which showed the outer cylinder partition opening part of the outer cylinder partition wall shown by FIG. It is the perspective view which formed the labyrinth by the outer cylinder partition opening part of the outer cylinder partition wall shown by FIG. 3, and the ring opening part of the action
- the automobile 10 shown in FIG. 1 is provided with a fuel tank 12 below the floor of a vehicle body 11, a pipe base end portion 14 a of a filler pipe 14 is provided on a left rear side portion 12 a of the fuel tank 12, and a filler pipe 14.
- An oil filler structure 20 for an automobile is provided on the pipe top portion 14b, and a fuel lid 16 that covers the oil filler structure 20 of the automobile is attached to the vehicle body 11 so as to be freely opened and closed.
- the fuel filler structure 20 of the automobile is configured such that a fuel nozzle 23 (FIG. 7) of a fuel gun 22 provided in a fuel station can be inserted, and the inserted fuel nozzle 23 can be guided to the filler pipe 14. Has been.
- the fuel filler opening structure 20 of an automobile will be described.
- the fuel filler structure 20 of the automobile includes an inner cylinder 25 provided in the pipe top 14 b of the filler pipe 14, an outer cylinder 27 provided in the inner cylinder 25, An operating ring (first partitioning portion) 28 and a nozzle guide portion 29 provided in the outer cylindrical body 27, and an oil filler ring 31 provided in the outer cylindrical top portion 27 a of the outer cylindrical body 27 are provided.
- the fuel filler port 73 of the fuel filler ring 31 is provided with a fuel filler shutter (not shown) serving as a first shutter.
- a pipe shutter (shutter) 26 serving as a second shutter is provided.
- the fuel filler structure 20 of this automobile is a so-called capless type filler structure in which the filler cap is removed from the filler port 73 by providing the shutter for the filler port and the shutter 26 for the pipe.
- the filler pipe 14 has a pipe base end portion 14 a provided at the left rear side portion 12 a of the fuel tank 12, and a pipe flange 33 (FIG. 3) formed at the pipe top portion 14 b.
- An inner cylinder 25 is inserted into the opening of the pipe top portion 14b.
- the inner cylinder 25 includes a cylindrical inner cylinder wall portion 35 coaxially inserted into the opening of the pipe top portion 14b, an inner cylinder partition wall 36 and an inner cylinder flange formed at the end portion 35a of the inner cylinder wall portion 35. 37.
- the inner cylinder wall portion 35 of the inner cylinder body 25 is inserted into the opening of the pipe top portion 14 b, and the inner cylinder flange 37 is in contact with the pipe flange 33.
- An inner cylinder partition opening 38 into which the oil supply nozzle 23 shown in FIG. 7 can be inserted is formed in the inner cylinder partition wall 36.
- a pipe shutter 26 is provided in the inner cylinder inner space 41 of the inner cylinder body 25.
- the pipe shutter 26 is provided so as to be openable and closable at a predetermined interval L1 (FIG. 2) on the filler pipe 14 side with respect to an oil supply port 73 described later.
- the pipe shutter 26 is swingably supported between a closed position P1 and an open position P2 (FIG. 7) about a support pin 43, and an annular seal member 44 is provided on the outer periphery 26a.
- the support pin 43 is provided on the support member 45.
- the support member 45 is provided on the inner cylinder wall portion 35 in a state of being disposed in the inner cylinder inner space 41 of the inner cylinder body 25.
- the pipe shutter 26 is held at the closed position P1 by the urging force of the return coil spring 46, and is locked at the closed position P1 by a lock mechanism (not shown).
- the coil spring 46 is provided on the support pin 43.
- the lock mechanism is configured such that the lock is released when the operating ring 28 is expanded in diameter.
- the pipe shutter 26 is held at the closed position P1 by the biasing force of the coil spring 46. In this state, the pipe shutter 26 is locked by the lock mechanism.
- the annular seal member 44 contacts the peripheral edge of the inner cylinder partition opening 38. As a result, the inner cylinder partition opening 38 is closed by the pipe shutter 26.
- the pipe shutter 26 can swing to the open position P2 against the urging force of the coil spring 46 with the lock mechanism unlocked. As the pipe shutter 26 swings to the open position P2, the inner cylinder partition opening 38 is opened.
- the outer cylinder 27 includes a cylindrical outer cylinder wall 51 provided coaxially with the inner cylinder 25, and an outer cylinder partition wall (second partition, partition) 52 formed on the outer cylinder wall 51. And.
- the outer cylindrical wall portion 51 is integrally formed with the fitting peripheral wall portion 54 and the fitting peripheral wall portion 54, which is expanded so as to be fitted to the inner cylindrical flange 37 and the pipe flange 33 of the inner cylindrical body 25. And an accommodating peripheral wall portion 55 that can be accommodated.
- the outer cylinder 27 is provided coaxially with the inner cylinder 25 in a state where the inner cylinder flange 37 and the pipe flange 33 are fitted to the fitting peripheral wall portion 54.
- the outer cylinder partition wall 52 is provided between the pipe shutter 26 and the oil filler port 73, specifically between the pipe shutter 26 and the operating ring 28.
- the outer cylinder partition wall 52 is a partition wall that partitions the fitting internal space 57 in the fitting peripheral wall portion 54 and the storage internal space 58 in the storage peripheral wall portion 55, and includes an outer cylinder partition opening (second opening, An opening 61 is formed coaxially with the outer cylinder wall 51.
- the outer cylinder partition opening 61 of the outer cylinder partition wall 52 will be described in detail with reference to FIGS.
- the actuating ring 28 is provided between the outer cylinder partition wall 52 and the oil filler port 73, specifically between the outer cylinder partition wall 52 and the oil filler port 73. Specifically, the operating ring 28 is provided coaxially with the outer cylinder partition opening 61 in the accommodating internal space 58, and the insertion / extraction direction of the oil supply nozzle 23 with respect to the outer cylinder partition wall 52. Are provided at a predetermined interval L2.
- the operating ring 28 includes an annular ring main body 63 provided coaxially with the outer cylinder partition opening 61 and a plurality of insertion guide parts 64 provided at regular intervals in the circumferential direction of the ring main body 63. I have.
- Each of the plurality of insertion guide portions 64 is a member formed of an elastically deformable resin material, and has a guide piece 64 a provided in a curved shape on the inner peripheral wall side of the ring main body 63.
- a ring opening (first opening) 65 is formed by a plurality of guide pieces 64a by providing a plurality of insertion guides 64 at a certain interval on the ring body 63.
- the ring opening 65 is formed with a hole diameter D2 that is smaller than the outer diameter D1 (FIG. 7) of the oil supply nozzle 23 so that the oil supply nozzle 23 can be inserted (inserted).
- the lock state of the lock mechanism (not shown) of the pipe shutter 26 is released by elastically deforming the plurality of guide pieces 64a in the direction of expanding the diameter.
- the ring opening 65 of the operating ring 28 will be described in detail with reference to FIGS.
- the nozzle guide portion 29 is coaxially provided adjacent to the operation ring 28 in the storage internal space 58 of the storage peripheral wall portion 55.
- the nozzle guide portion 29 is a member that is formed in a substantially cylindrical shape, and the peripheral wall portion 71 (particularly, the upper wall portion 71 a) guides the oil supply nozzle 23 (FIG. 7) to the ring opening 65 of the operating ring 28.
- the oil supply nozzle 23 can be easily inserted into the ring opening 65 by guiding the oil supply nozzle 23 to the ring opening 65 by the nozzle guide portion 29.
- the fuel filler ring 31 is a member provided with a fuel filler 73 into which the fuel nozzle 23 can be inserted, and is provided on the outer cylinder top 27 a of the outer cylinder 27.
- the fuel filler 73 is an opening into which the fuel nozzle 23 shown in FIG. 7 is inserted.
- a filler port shutter (not shown) is provided on the filler port ring 31 so as to be freely opened and closed.
- the shutter for the fuel filler opening is pushed open at the tip 23a (FIG. 7) of the fuel filler nozzle 23 inserted from the fuel filler 73, and a spring of a return spring (not shown) when the fuel filler nozzle 23 is extracted from the fuel filler 73. It is configured to be kept in the closed position by force.
- the outer cylinder partition opening 61 is formed to have a slightly larger hole diameter D ⁇ b> 3 than the outer diameter D ⁇ b> 1 of the oil supply nozzle 23. That is, the outer cylinder partition opening 61 is formed so that the oil supply nozzle 23 can be inserted (inserted). Furthermore, the outer cylinder partition opening 61 is formed such that the gap between the inner peripheral edge 61a of the outer cylinder partition opening 61 and the oil supply nozzle 23 (the gap between the opening and the oil supply nozzle) is S1.
- the outer cylinder partition opening 61 has inclined surfaces (chamfered portions) 75 formed at a pair of corners of the inner peripheral edge 61a. Therefore, the gap S ⁇ b> 2 between the inclined surface 75 and the fuel nozzle 23 is formed larger than the gap S ⁇ b> 1 between the inner peripheral edge 61 a and the fuel nozzle 23. Thereby, the flow velocity of the fuel flowing between the inner peripheral edge 61a and the fuel supply nozzle 23 can be suppressed. Further, by forming the gap S2 larger than the gap S1, the insertion of the oil supply nozzle 23 can be smoothly guided.
- the outer cylinder partition opening 61 is formed with a plurality of partition recesses (second gaps) 76 having a predetermined width at predetermined intervals in the circumferential direction in the inner peripheral part 61b. The reason why the partition recess 76 is formed in the outer cylinder partition opening 61 will be described later.
- the operating ring 28 is provided with a plurality of insertion guide portions 64 at a constant interval in the circumferential direction of the ring body 63, so that a plurality of ring recesses are formed by the plurality of guide pieces 64 a and the ring body 63.
- a (first gap) 68 is formed. That is, the ring opening 65 is formed with a plurality of ring recesses 68 having a predetermined width at predetermined intervals in the circumferential direction.
- the plurality of ring recesses 68 are arranged offset (in a staggered manner) in the circumferential direction with respect to the plurality of partition recesses 76 of the outer cylinder partition opening 61.
- the labyrinth 81 is formed by the plurality of ring recesses 68 and the plurality of partition recesses 76 by arranging the plurality of ring recesses 68 offset in the circumferential direction (alternately) with respect to the plurality of partition recesses 76.
- the labyrinth 81 formed by the plurality of ring recesses 68 and the plurality of partition recesses 76 can suppress the flow velocity of the fuel flowing from the pipe shutter 26 side toward the fuel filler port 73 shown in FIG.
- the width dimension of the ring recess 68 and the width dimension of the partition recess 76 do not need to be equal to each other, and can be set arbitrarily.
- the operating ring 28 is an existing member used in a normal fuel filler structure. Thus, it is not necessary to prepare a new member by forming the labyrinth 81 using the existing operating ring 28. Thereby, the labyrinth 81 that suppresses the flow rate of the fuel can be formed with a simple configuration, and the configuration can be simplified.
- the fueling nozzle 23 of the fueling gun 22 is inserted from the fueling port 73 as indicated by an arrow A.
- the tip 23 a of the oil supply nozzle 23 is inserted into the ring opening 65 of the operating ring 28 through the oil supply port 73 and the nozzle guide 29.
- the guide pieces 64a of the plurality of insertion guide portions 64 are elastically deformed outward in the radial direction by the oil supply nozzle 23, respectively. Therefore, the hole diameter D ⁇ b> 2 (FIG. 2) of the ring opening 65 is expanded to the same dimension as the outer diameter D ⁇ b> 1 of the oil supply nozzle 23.
- the lock state of the lock mechanism (not shown) of the pipe shutter 26 is released by elastically deforming the plurality of guide pieces 64a in the direction of expanding the diameter.
- the oil supply nozzle 23 is continuously inserted as shown by the arrow A, so that the tip 23 a of the oil supply nozzle 23 comes into contact with the pipe shutter 26 through the outer cylinder partition opening 61.
- the pipe shutter 26 is pushed in by the tip 23a of the oil supply nozzle 23.
- the pipe shutter 26 swings from the closed position P1 to the open position P2 as shown by an arrow B against the urging force of the coil spring 46.
- the pipe shutter 26 is opened to the open position P2 by pushing the pipe shutter 26 with the oil supply nozzle 23. Therefore, it becomes possible to insert the fuel nozzle 23 as shown by the arrow A to the fuel position P3. With the fuel nozzle 23 inserted to the fuel position P3, the fuel gun 22 is operated to supply the fuel 83 from the tip 23a of the fuel nozzle 23 to the filler pipe 14.
- Fuel 83 is supplied to the fuel tank 12, and the fuel 83 rises to the FULL position (full tank position) P4 of the filler pipe 14.
- the liquid level 83a of the fuel 83 reaches the fuel detection sensor 85 provided at the tip portion 23a of the fuel supply nozzle 23.
- the fuel detection sensor 85 detects the fuel 83 and stops the supply of the fuel 83 based on the detection signal of the fuel detection sensor 85.
- the fuel nozzle 23 of the fuel gun 22 is inserted from the fuel inlet 73 as indicated by the arrow A.
- the distal end portion 23 a of the oil supply nozzle 23 reaches the pipe shutter 26 through the outer cylinder partition opening 61. In this state, it is conceivable that the user misunderstands and supplies the fuel 83 from the fuel nozzle 23 of the fuel gun 22 to the filler pipe 14.
- the fuel 83 supplied from the tip 23a of the fuel nozzle 23 hits the pipe shutter 26 and flows backward toward the outer cylinder partition opening 61 as indicated by the arrow C.
- a gap S ⁇ b> 1 is formed between the inner peripheral edge 61 a and the oil supply nozzle 23. Therefore, a part of the fuel 83 that flows backward as indicated by the arrow C flows as indicated by the arrow D through the gap S1 between the inner peripheral edge 61a and the fuel supply nozzle 23.
- the remaining fuel 83 will be described in detail with reference to FIG.
- An inclined surface (chamfered portion) 75 is formed on the inner peripheral edge 61 a of the outer cylinder partition opening 61. Therefore, a large gap S ⁇ b> 2 between the inclined surface 75 and the fuel filler nozzle 23 is ensured. As a result, when the fuel 83 that has flowed back as shown by the arrow C flows between the inner peripheral edge 61a and the fuel supply nozzle 23 as shown by the arrow D, the flow velocity of the fuel 83 that has flowed back can be suppressed.
- FIG. 9 (a) and 9 (b) show a state where the fuel gradually overflows from the fuel filler port.
- FIG. 9A shows the fuel supply nozzle 23 removed in order to facilitate understanding of the flow rate of the fuel 83.
- the outer cylinder partition opening 61 has a plurality of partition recesses 76 formed in the inner periphery 61b. Therefore, the remaining fuel 83 out of the fuel 83 flowing backward as indicated by the arrow C flows as indicated by the arrow E through the plurality of partition recesses 76.
- a part of the remaining fuel 83 is blocked by the inner peripheral part 61b. Therefore, a part of the remaining fuel 83 flows into the partition recess 76 as indicated by the arrow F, bypassing the inner peripheral portion 61b. Thereby, the flow rate when the remaining fuel 83 flows as shown by arrows E and F through the plurality of partition recesses 76 can be suppressed.
- a plurality of ring recesses 68 are formed in the ring opening 65 of the operating ring 28.
- the labyrinth 81 is formed by the plurality of ring recesses 68 and the plurality of partition recesses 76 by arranging the plurality of ring recesses 68 offset in the circumferential direction (alternately) with respect to the plurality of partition recesses 76. Therefore, the flow of the fuel 83 that has flowed as indicated by arrows E and F through the plurality of partition recesses 76 is blocked by the guide piece 64 a of the insertion guide portion 64.
- the fuel 83 that has flowed as indicated by arrows E and F bypasses the guide piece 64a and flows into the ring recess 68 as indicated by arrow G. Therefore, the flow velocity of the fuel 83 that has flowed as indicated by arrows E and F through the plurality of ring recesses 68 as indicated by arrow G can be suppressed.
- the flow rate of the remaining fuel 83 among the fuel 83 that has flowed back as indicated by the arrow C can be suppressed.
- an inclined surface (chamfered portion) 75 is formed on the inner peripheral edge 61a of the outer cylinder partition opening 61, and a labyrinth 81 (FIG. 9A) is formed by the ring recess 68 and the partition recess 76.
- a labyrinth 81 FIG. 9A
- the flow rate of the fuel 83 that has flowed back against the pipe shutter 26 can be suppressed. Therefore, the fuel 83 that has flowed backward can be gently discharged from the fuel filler 73 to the outside of the fuel filler structure 20 of the automobile as indicated by an arrow H. Thereby, it is possible to prevent the discharged fuel 83 from being applied to the user.
- the fuel 83 can be stored in the front end portion 23a of the fuel supply nozzle 23 by gently discharging the fuel 83 that has flowed back to the outside through the fuel supply port 73. Therefore, the liquid level 83 a of the stored fuel 83 reaches the fuel detection sensor 85.
- the fuel detection sensor 85 detects the fuel 83, and the supply of the fuel 83 can be stopped based on the detection signal of the fuel detection sensor 85.
- FIGS. 10A and 10B show a state in which the oil supply nozzle 23 is inserted to the oil supply position.
- the fueling nozzle 23 of the fueling gun 22 is inserted from the fueling port 73 as shown by the arrow A.
- the pipe shutter 26 is pushed in by the oil supply nozzle 23 to open to the open position P2, and the oil supply nozzle 23 is inserted to the oil supply position P3.
- the fuel 83 is supplied to the filler pipe 14 from the fuel nozzle 23 of the fuel gun 22.
- the fuel 83 When a failure occurs in the fuel detection sensor 85, the fuel 83 is supplied beyond the FULL position (full tank position) P4. At this time, the supplied fuel 83 overflows from the filler pipe 14 and flows back to the outer cylinder partition opening 61 side.
- the outer cylinder partitioning opening 61 has a gap S1 formed between the inner peripheral edge 61a and the oil supply nozzle 23. Therefore, a part of the fuel 83 that has flowed back flows as indicated by an arrow I through the gap S1 between the inner peripheral edge 61a and the fuel supply nozzle 23. The remaining fuel 83 will be described in detail with reference to FIG.
- An inclined surface (chamfered portion) 75 is formed on the inner peripheral edge 61 a of the outer cylinder partition opening 61. Therefore, a large gap S ⁇ b> 2 between the inclined surface 75 and the fuel filler nozzle 23 is ensured. Thereby, when the fuel 83 flowing backward from the filler pipe 14 (FIG. 10A) flows between the inner peripheral edge 61a and the fuel supply nozzle 23 as shown by the arrow I, the flow velocity of the fuel 83 flowing backward can be suppressed.
- FIGS. 11 (a) and 11 (b) show a state where fuel gradually overflows from the fuel filler opening.
- FIG. 11A shows a state where the fuel supply nozzle 23 is removed to facilitate understanding of the flow rate of the fuel 83.
- the outer cylinder partition opening 61 has a plurality of partition recesses 76 formed in the inner periphery 61b. Therefore, of the fuel 83 that has flowed back from the filler pipe 14 (FIG. 10A), the remaining fuel 83 flows as indicated by an arrow J through the plurality of partition recesses 76.
- a plurality of ring recesses 68 are formed in the ring opening 65 of the operating ring 28.
- the labyrinth 81 is formed by the plurality of ring recesses 68 and the plurality of partition recesses 76 by arranging the plurality of ring recesses 68 offset in the circumferential direction (alternately) with respect to the plurality of partition recesses 76. Therefore, the flow of the fuel 83 that has flowed as indicated by arrows J and K through the plurality of partition recesses 76 is blocked by the guide piece 64 a of the insertion guide portion 64.
- the fuel 83 that has flowed as indicated by arrows J and K bypasses the guide piece 64a and flows into the ring recess 68 as indicated by arrow L. Therefore, when the fuel 83 that has flowed as indicated by arrows J and K flows as indicated by arrow L through the plurality of ring recesses 68, the flow velocity can be suppressed. In this manner, by forming the labyrinth 81 with the plurality of ring recesses 68 and the plurality of partition recesses 76, the flow rate of the remaining fuel 83 among the fuel 83 flowing backward from the filler pipe 14 can be suppressed.
- an inclined surface (chamfered portion) 75 is formed on the inner peripheral edge 61a of the outer cylinder partition opening 61, and a labyrinth 81 (FIG. 11A) is formed by the ring recess 68 and the partition recess 76.
- a labyrinth 81 FIG. 11A
- the flow rate of the fuel 83 flowing backward from the filler pipe 14 can be suppressed. Therefore, the fuel 83 flowing backward from the filler pipe 14 can be gently discharged from the fuel filler 73 to the outside of the vehicle fuel filler structure 20 as indicated by an arrow M. Thereby, it is possible to prevent the discharged fuel 83 from being applied to the user.
- FIG. 12 shows a modification of the chamfered portion 75 shown in FIG.
- an example of the chamfered portion 75 having an inclined surface at the corner of the inner peripheral edge 61 a that forms the outer cylinder partition opening 61 is shown.
- even a convex curved surface exhibits the same functions and effects as the inclined surface.
- the present invention is not limited to this, and a new member can be prepared as the first partition portion.
- the example in which the plurality of ring recesses 68 are provided as the first gap and the plurality of partition recesses 76 are provided as the second gap has been described. It is also possible to form a labyrinth by offsetting one partition recess 76 in the circumferential direction.
- the ring recess 68 and the partition recess 76 are illustrated as the first and second gaps, but the present invention is not limited to this, and other gaps such as openings (holes). It is also possible to adopt a part.
- the fuel filler structure 20 of the automobile is provided with the labyrinth 81 and the inclined surface 75 is formed on the inner peripheral edge 61a of the outer cylinder partition opening 61.
- the present invention is not limited thereto. Any one of the labyrinth 81 and the inclined surface 75 can be applied.
- the present invention is not limited to this, and the present invention can also be applied to a filler opening structure having a filler opening cap at the filler opening.
- the shapes of the filler pipe 14, the pipe shutter 26, the operating ring 28, the outer cylinder partition wall 52, the ring recess 68, the partition recess 76, and the like shown in the present embodiment are not limited to those illustrated, but are appropriately changed. Is possible.
- the present invention is suitable for application to an automobile provided with a filler opening structure that is provided with a shutter that opens and closes a filler pipe and that is kept open by pushing the shutter with a nozzle for refueling.
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Abstract
Description
Claims (6)
- 給油用のノズルが差込可能である給油口を有するフィラーパイプと、該フィラーパイプを開閉するシャッターとを備えており、該シャッターが前記給油用のノズルで押し込まれた状態で開状態に保たれ、この状態で前記給油用のノズルが給油位置まで差込可能である自動車の給油口構造であって、
前記シャッターおよび前記給油口間に所定間隔をおいて、前記給油用のノズルが挿通可能な第1及び第2の仕切部が設けられ、
前記給油用のノズルが挿通可能な第1開口部は、前記第1仕切部に形成され、この第1開口部に周方向に所定幅を有する少なくとも1つの第1空隙部が形成され、
前記給油用のノズルが挿通可能な第2開口部は、前記第2仕切部に形成され、この第2開口部に周方向に所定幅を有する少なくとも1つの第2空隙部が形成され、
前記第1空隙部と前記第2空隙部とを周方向にオフセットさせて配置することで、前記シャッターおよび前記給油口間にラビリンスを形成することを特徴とする自動車の給油口構造。 - 前記第1仕切部は、
前記給油用のノズルが前記第1開口部に差し込まれたとき、前記第1開口部が拡径することで前記シャッターのロックを解除する作動リングである請求項1に記載の自動車の給油口構造。 - 給油用のノズルが差込可能である給油口を有するフィラーパイプと、該フィラーパイプを開閉するシャッターとを備えており、該シャッターが前記給油用のノズルで押し込まれた状態で開状態に保たれ、この状態で前記給油用のノズルを給油位置まで差込可能である自動車の給油口構造であって、
前記シャッターおよび前記給油口間に前記給油用のノズルが挿通可能な仕切部が設けられ、
前記仕切部は、前記給油用のノズルが挿通可能な開口部を有し、
この開口部の角部に面取部が形成されることにより、前記開口部および前記給油用のノズル間の隙間を経て前記シャッター側から前記給油口に向けて流れる燃料の流速を抑えることを特徴とする自動車の給油口構造。 - 前記面取部は、前記開口部の内周縁に形成されている請求項3に記載の自動車の給油口構造。
- 前記面取部は、傾斜面である請求項4に記載の自動車の給油口構造。
- 前記面取部は、凸状の湾曲面からなる請求項4に記載の自動車の給油口構造。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09813135A EP2332766B1 (en) | 2008-09-11 | 2009-09-11 | Structure for fuel filling opening of automobile |
US13/062,752 US8555937B2 (en) | 2008-09-11 | 2009-09-11 | Structure for fuel filling opening of automobile |
CN2009801357263A CN102149560B (zh) | 2008-09-11 | 2009-09-11 | 机动车的加油口结构 |
JP2010528757A JP5221662B2 (ja) | 2008-09-11 | 2009-09-11 | 自動車の給油口構造 |
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JP2008233567 | 2008-09-11 | ||
JP2008-233567 | 2008-09-11 |
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WO2010029989A1 true WO2010029989A1 (ja) | 2010-03-18 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2009/065892 WO2010029989A1 (ja) | 2008-09-11 | 2009-09-11 | 自動車の給油口構造 |
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Country | Link |
---|---|
US (1) | US8555937B2 (ja) |
EP (1) | EP2332766B1 (ja) |
JP (1) | JP5221662B2 (ja) |
CN (1) | CN102149560B (ja) |
WO (1) | WO2010029989A1 (ja) |
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DE102012024138A1 (de) | 2011-12-28 | 2013-07-04 | Asteer Co., Ltd. | Kraftstoffeinfüllmündung |
JP2013189188A (ja) * | 2012-03-13 | 2013-09-26 | Ti Automotive Technology Center Gmbh | 燃料タンクの給油口 |
CN103459185A (zh) * | 2011-02-07 | 2013-12-18 | 株式会社利富高 | 供油口开闭装置 |
JP2014009007A (ja) * | 2012-06-29 | 2014-01-20 | Nifco Inc | 弁装置 |
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US10000117B2 (en) | 2012-02-17 | 2018-06-19 | Stant Usa Corp. | Filler neck closure assembly |
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JP2013169837A (ja) * | 2012-02-20 | 2013-09-02 | Honda Motor Co Ltd | 燃料供給管の給油部構造 |
US10436365B2 (en) * | 2012-04-27 | 2019-10-08 | Leigh Maxwell Remfry | Refueling coupling |
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Also Published As
Publication number | Publication date |
---|---|
JP5221662B2 (ja) | 2013-06-26 |
EP2332766B1 (en) | 2012-11-14 |
JPWO2010029989A1 (ja) | 2012-02-02 |
CN102149560B (zh) | 2013-10-09 |
US20110162754A1 (en) | 2011-07-07 |
EP2332766A1 (en) | 2011-06-15 |
EP2332766A4 (en) | 2011-10-19 |
CN102149560A (zh) | 2011-08-10 |
US8555937B2 (en) | 2013-10-15 |
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