CN104924894A - Fuel oil filling pipe assembly - Google Patents
Fuel oil filling pipe assembly Download PDFInfo
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- CN104924894A CN104924894A CN201510421186.2A CN201510421186A CN104924894A CN 104924894 A CN104924894 A CN 104924894A CN 201510421186 A CN201510421186 A CN 201510421186A CN 104924894 A CN104924894 A CN 104924894A
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- fuel filler
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Abstract
The invention discloses a fuel oil filling pipe assembly. The fuel oil filling pipe assembly comprises an oil filling pipe in the specific space curved moving direction and a gas outlet pipe in the specific space curved moving direction, wherein the gas outlet end of the gas outlet pipe is communicated with the oil filling end of the oil filling pipe. An anti-spill sleeve capable of preventing fuel oil from overflowing when an oil gun fills oil is arranged in the oil filling end of the oil filling pipe in an interference fit mode. The oil filling end of the oil filling pipe is provided with an oil filling cavity capable of containing the oil gun for filling oil, wherein the oil filling cavity is expanded and formed through the flaring process; an inner circle sealing bevel which becomes larger gradually and is in sealing fit with a fuel tank cap and an arc-shaped surface which turns over outwards in an arc shape and can be matched with the fuel tank cap in a limiting mode are formed on the inner wall of a port of the oil filling cavity in sequence. An internal thread which is in threaded connection with the fuel tank cap is integrally formed on the inner wall of the oil filling tank through the rolling process and located below the inner circle sealing bevel. The anti-spill sleeve is fixedly mounted in the oil filling cavity and located below the internal thread. The fuel oil filling pipe assembly is concise in structure, smooth in oil filling, good in sealing performance, high in safety coefficient and capable of meeting the requirement of a current automobile market for oil filling.
Description
Technical field
The present invention relates to vehicle body fittings field, be specifically applied on vehicle in order to fuel oil to be transported to a kind of fuel oil refueling pipe assembly in fuel tank from oil gun.
Background technology
Along with the develop rapidly of China's auto trade and improving constantly of living standards of the people, the demand of family-sized car is also along with surging.Automobile is furnished with fuel tank with gasoline or diesel oil for fuel usually, and for the ease of sealing and the oiling of fuel tank, the oil filling port of fuel tank is all provided with special fuel filler pipe.In prior art, usually the screw-thread pipe body that can prevent fuel oil from overflowing when refueling all is provided with in the oiling end of traditional fuel filler pipe, screw-thread pipe body generally adopts press-fit approach to be arranged in fuel filler pipe, due to screw-thread pipe body not only will with fuel filler pipe heavy keying fit, also will with fuel lid threaded engagement, thus its complex structure is caused, tooling cost is high, simultaneously traditional fuel filler pipe is little with the sealing contact surface also existed with fuel lid, easily cause the defect of leakage of oil, therefore traditional fuel filler pipe need further perfect.
Summary of the invention
Technical matters to be solved by this invention is the present situation for above-mentioned prior art, and provides that port leak tightness is strong, the fluency that refuels is good and can reduce welding, a kind of fuel oil refueling pipe assembly of cost-saving, reliable in quality.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of fuel oil refueling pipe assembly, comprise the fuel filler pipe with particular space curved course and there is particular space curved course and outlet side is communicated with and refuels the freeing pipe of end at fuel filler pipe, during fuel filler pipe refuels and holds, interference fit is provided with the anti-overflow cover that when can prevent nozzle from refueling, fuel oil is excessive, the oiling end of fuel filler pipe has the expanding shaping fueling cavity that can hold nozzle oiling of employing enlarging technique, the port inner wall of this fueling cavity be formed successively the gradually large inner circle coordinated with oil tank cover sealing seal inclined-plane and to outer arcuate overturn can the arcwall face that coordinate spacing with fuel lid, the inwall of fueling cavity is positioned at below inner circle sealing inclined-plane and adopts that rolling technology is one-body molded the negative thread be connected with the spiral of fuel lid, anti-overflow cover to be fixedly mounted in fueling cavity and to be positioned at the below place of negative thread.
For optimizing technique scheme, the measure taked also comprises:
Butt flange assembly is arranged with outside the oiling end of above-mentioned fuel filler pipe, butt flange assembly comprises employing spot-welding technology and is weldingly fixed on the steel flange dish of oiling end and locates the packing seal be arranged on the ring surface of steel flange dish upper end, packing seal bottom surface is shaped with anticreep convex button, and steel flange dish is shaped with the convex button hole of anticreep buckled with anticreep convex and wear and buckle anti-avulsion and coordinate; The outlet side of freeing pipe adopts the method for whole circle dielectric bonding to fix welding to be communicated with and to refuel on end and to be positioned at the below place of butt flange assembly.
Above-mentioned butt flange assembly is shaped with by the downward through steel flange dish of packing seal the bolt hole that spot-welded bolt wears, the bottom surface of steel flange dish is provided with the spot welding nut coordinated with spot-welded bolt, and this butt flange assembly is shaped with three bolts hole at a distance of 120 degree.
Above-mentioned anti-overflow cover comprises and the pipe portion of fueling cavity inwall interference fit and the contraction flow region being integrally connected to pipe subordinate, the end of this contraction flow region is compressing pipe oil filling port, the anti-overflow chamber preventing fuel oil excessive is formed between the inwall of contraction flow region and fueling cavity, and this contraction flow region is shaped with the air gate in the anti-overflow chamber of radial communication, the outlet side of freeing pipe is communicated in fueling cavity to be had in anti-overflow chamber, is provided with the stay of hanging arms in anti-overflow cover.
The diameter of above-mentioned fuel filler pipe is greater than the diameter of freeing pipe, the length of run of fuel filler pipe centrally axis is 877.6 millimeters, the length of run of freeing pipe centrally axis is 718 millimeters, and fuel filler pipe and freeing pipe are welded with twice jointly can locate strike separation between fuel filler pipe and freeing pipe and convenient first support equipped with fuel tank and the second support.
The first above-mentioned support and the second support are equipped with spot-welded bolt, and another end relative with being provided with spot-welded bolt one end on the second support is shaped with increase assembly opening.
The inlet end flow forming of above-mentioned freeing pipe has air inlet to connect convex mouth, and the front end face 28 millimeters place flow forming apart from air inlet connection convex mouth on this freeing pipe has one freeing pipe annular bead.
The oil outlet end flow forming of above-mentioned fuel filler pipe has fuel-displaced connection convex mouth, and the front end face 35 millimeters place flow forming apart from fuel-displaced connection convex mouth on this fuel filler pipe has one fuel filler pipe annular bead.
Compared with prior art, the present invention is a kind of fuel filler pipe be transported to from oil gun by fuel oil in fuel tank, do not affect fuel filler pipe to refuel to ensure air in fuel tank can discharge smoothly when refueling, fuel filler pipe bypass is integrated with freeing pipe, it is the comfort feature ensureing the stable of the space trend of fuel filler pipe and freeing pipe and install simultaneously, the oiling end overcoat of fuel filler pipe is fixed with butt flange assembly, be fixedly connected with the first support and the second support between fuel filler pipe and freeing pipe thus constitute fuel filler pipe assembly, oiling end of the present invention adopts enlarging technique, the internal diameter of oiling end and the diameter of fueling cavity is made to become 46.8 millimeters, enlarging technique is adopted to decrease the defect of the easy oil leakage that conventional gasoline tube welding process causes, and fuel filler pipe of the present invention refuels to hold and have employed inclined-plane between fuel lid and seals, namely by the inner circle sealing inclined-plane sealing of fueling cavity, this inclined-plane sealing peace can make sealing surface larger, safer, therefore sealing property is also better, particularly the present invention directly adopts on the fueling cavity inwall of fuel filler pipe that rolling technology is one-body molded the negative thread be connected with the spiral of fuel lid, this method processing negative thread than tradition on anti-overflow cover is compared, anti-overflow cover structure of the present invention can be made more simple, thus make anti-overflow cover of the present invention that nozzle can be made to insert more smoothly, the present invention has also been designed with the stay of simply hanging arms, stay can tangle by stay, thus hand can leave nozzle.The present invention is simple for structure, it is smooth and easy to refuel, good airproof performance and safety factor is high, can meet the oiling demand of current automotive market.
Accompanying drawing explanation
Fig. 1 is one of perspective view of the present invention;
Fig. 2 is perspective view two of the present invention;
Fig. 3 is the front elevation of butt flange assembly of the present invention;
Fig. 4 is that the A-A of Fig. 3 is to cutaway view;
Fig. 5 is that the B-B of Fig. 1 is to cutaway view;
Fig. 6 is that the C-C of Fig. 1 is to cutaway view.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described in further detail.
Fig. 1 to Fig. 6 is structural representation of the present invention.
Reference numeral is wherein: anti-overflow chamber K, assembly opening Q, fuel filler pipe 1, fueling cavity 1a, inner circle sealing inclined-plane 1b, arcwall face 1c, negative thread 1d, oiling end 11, fuel-displaced connection convex mouth 12, fuel filler pipe annular bead 13, freeing pipe 2, outlet side 21, air inlet connects convex mouth 22, freeing pipe annular bead 23, anti-overflow cover 3, pipe portion 31, contraction flow region 32, pipe oil filling port 33, stay 34, butt flange assembly 4, bolt hole 4a, steel flange dish 41, the convex button hole 41a of anticreep, packing seal 42, anticreep convex button 42a, spot welding nut 43, first support 51, second support 52, spot-welded bolt 6.
As shown in Figures 1 to 6, a kind of fuel oil refueling pipe assembly of the present invention, comprise the fuel filler pipe 1 with particular space curved course and there is particular space curved course and outlet side 21 is communicated with and refuels the freeing pipe 2 of end 11 at fuel filler pipe 1, freeing pipe 2 bypass is at the oiling end 11 of fuel filler pipe 1, fuel filler pipe 1 is by the pipeline of the fuel delivery of nozzle injection to fuel tank, when refueling for fuel tank, air in fuel tank needs to discharge, in order to not affect carrying out smoothly of oiling, have employed the method that bypass is given vent to anger, namely freeing pipe 2 is added with outside, fuel filler pipe 1 refuels interference fit in end 11 and is provided with the anti-overflow cover 3 that when can prevent nozzle from refueling, fuel oil is excessive, anti-overflow cover 3 is the oil filling port set up of conventional gasoline pipe namely, the oiling end 11 of fuel filler pipe 1 of the present invention has the expanding shaping fueling cavity 1a that can hold nozzle oiling of employing enlarging technique, the end 11 that refuels directly adopts enlarging technological forming, decrease the trouble of conventional gasoline pipe front end welding oiling end 11, and effectively can reduce the defect of leakage of oil, refueling the internal diameter of end 11 and the diameter of fueling cavity 1a after enlarging of the present invention can reach 46.8 millimeters, the present invention the port inner wall of fueling cavity 1a be formed successively the gradually large inner circle coordinated with oil tank cover sealing seal inclined-plane 1b and to outer arcuate overturn can the arcwall face 1c that coordinate spacing with fuel lid, adopt inner circle to seal inclined-plane 1b between oiling end 11 of the present invention and fuel lid to seal, the sealing of this inclined-plane increases sealing surface, thus sealing property is better, safety is also higher, the present invention is also positioned at below inner circle sealing inclined-plane 1b and adopts that rolling technology is one-body molded the negative thread 1d be connected with the spiral of fuel lid on the inwall of fueling cavity 1a, anti-overflow cover 3 to be fixedly mounted in fueling cavity and to be positioned at the below place of negative thread 1d.The present invention directly adopts on the fueling cavity inwall of fuel filler pipe that rolling technology is one-body molded the negative thread be connected with the spiral of fuel lid, this method processing negative thread than tradition on anti-overflow cover is compared, anti-overflow cover structure of the present invention can be made more simple, thus make anti-overflow cover of the present invention that nozzle can be made to insert more smoothly.
In embodiment, butt flange assembly 4 is arranged with outside the oiling end 11 of fuel filler pipe 1, butt flange assembly 4 comprises employing spot-welding technology and is weldingly fixed on the steel flange dish 41 of oiling end 11 and locates the packing seal 42 be arranged on the ring surface of steel flange dish 41 upper end, steel flange dish 41 requires axially loaded 2900N after welding, after moment of torsion 53 N.m, weld seam does not come off, location is fitted tightly in order to make packing seal 42 and steel flange dish 41, packing seal 42 bottom surface of the present invention is shaped with anticreep convex button 42a, correspondingly steel flange dish 41 is shaped with and buckles 42a with anticreep convex and wear the convex button hole 41a of anticreep buckleing anti-avulsion and coordinate, so-called button anti-avulsion of wearing refers to that the convex button of expansion of anticreep convex button 42a front end is through after the convex button hole 41a of anticreep, expand convex button upper end retaining face can with the bottom surface location fit of the convex button hole 41a of anticreep, thus prevent the convex button of expansion to deviate from from the convex button hole 41a of anticreep, so also just make packing seal 42 together with steel flange dish 41 tight joint, and avoid rotation or the vibration phenomenon of packing seal 42, this compound formulation structure is simple, be easy to install, and once packing seal 42 damages also easily changes.The quantity of anticreep convex button 42a and the convex button hole 41a of anticreep can be determined according to actual needs, but at least also will respectively be shaped with three.The outlet side 21 of freeing pipe 2 of the present invention adopts the method for whole circle dielectric bonding to fix welding to be communicated with and to refuel on end 11 and to be positioned at the below place of butt flange assembly 4.
In embodiment, butt flange assembly 4 is shaped with by the downward through steel flange dish 41 of packing seal 42 the bolt hole 4a that spot-welded bolt wears, the bottom surface of steel flange dish 41 is provided with the spot welding nut 43 coordinated with spot-welded bolt, and this butt flange assembly 4 is shaped with three bolt hole 4a at a distance of 120 degree.
Anti-overflow cover 3 comprises and the pipe portion 31 of fueling cavity 1a inwall interference fit and the contraction flow region 32 that is integrally connected under pipe portion 31, the end of this contraction flow region 32 is compressing pipe oil filling port 33, the anti-overflow chamber K preventing fuel oil excessive is formed between the inwall of contraction flow region 32 and fueling cavity 1a, and this contraction flow region 32 is shaped with the air gate of the anti-overflow chamber K of radial communication, the outlet side 21 of freeing pipe 2 is communicated in fueling cavity 1a to be had in anti-overflow chamber K, is provided with the stay 34 of hanging arms in anti-overflow cover 3.Anti-overflow cover of the present invention 3 and fuel filler pipe 1 are assembled after rear requirement bears axial force 3400N, moment of torsion 20N.m, anti-overflow cover 3 must not move or rotate, present invention employs stay 34, because negative thread 1d has been molded directly within the oiling end 11 of fuel filler pipe 1, eliminate a complicated anti-overflow cover 3, it can make nozzle insert smoothly, after hand leaves oil gun, stay 34 can tangle rifle, an air gate opened by stay 34, the air utilizing air gate freeing pipe 2 can be discharged is discharged, and namely air gate is the outlet of the return-air when refueling.
The diameter of fuel filler pipe 1 is greater than the diameter of freeing pipe 2, the length of run of fuel filler pipe 1 centrally axis is 877.6 millimeters, the length of run of freeing pipe 2 centrally axis is 718 millimeters, and fuel filler pipe 1 and freeing pipe 2 are welded with twice jointly can locate strike separation between fuel filler pipe 1 and freeing pipe 2 and convenient first support 51 and second support 52 equipped with fuel tank.Fuel filler pipe 1 of the present invention and freeing pipe 2 all have multiple spaces section of trend, thus define the curvature of space form of respective complexity, due to fuel filler pipe 1 and freeing pipe 2 relatively long, needs during in order to ensure both space orientation and assemble, the present invention is provided with the first support 51 and the second support 52, first support 51 and the second support 52 are all weldingly connected with fuel filler pipe 1 and freeing pipe 2, the present invention utilizes the first support 51, second support 52 and butt flange assembly 4, whole fuel oil refueling pipe assembly can be assembled onboard smoothly, make it stablize.
First support 51 and the second support 52 are equipped with spot-welded bolt 6, and another end relative with being provided with spot-welded bolt 6 one end on the second support 52 is shaped with increase assembly opening Q.
The inlet end flow forming of freeing pipe 2 has air inlet to connect convex mouth 22, and the front end face 28 millimeters place flow forming apart from air inlet connection convex mouth 22 on this freeing pipe 2 has one freeing pipe annular bead 23.
The oil outlet end flow forming of fuel filler pipe 1 has fuel-displaced connection convex mouth 12, and the front end face 35 millimeters place flow forming apart from fuel-displaced connection convex mouth 12 on this fuel filler pipe 1 has one fuel filler pipe annular bead 13.
After all face of weld welding of the present invention, entirety all will through powder spray process, the thickness of spray-on coating is greater than 40um, fuel oil refueling pipe assembly also will through air-leakage test, be detected as and be immersed in water, inflate in fuel oil refueling pipe assembly, applying the relative barometric pressure of 30KPa, without gas leakage after pressurize 30S.
Most preferred embodiment of the present invention is illustrated, and the various change made by those of ordinary skill in the art or remodeling all can not depart from the scope of the present invention.
Claims (8)
1. a fuel oil refueling pipe assembly, comprise the fuel filler pipe (1) with particular space curved course and there is particular space curved course and outlet side (21) are communicated with and refuel the freeing pipe (2) of end (11) at fuel filler pipe (1), described fuel filler pipe (1) refuels holds interference fit in (11) to be provided with the excessive anti-overflow cover (3) of fuel oil when can prevent nozzle from refueling, it is characterized in that: the oiling end (11) of described fuel filler pipe (1) has the expanding shaping fueling cavity (1a) that can hold nozzle oiling of employing enlarging technique, the port inner wall of this fueling cavity (1a) be formed successively the gradually large inner circle coordinated with oil tank cover sealing seal inclined-plane (1b) and to outer arcuate overturn can the arcwall face (1c) that coordinate spacing with fuel lid, the inwall of described fueling cavity (1a) is positioned at inner circle sealing inclined-plane (1b) below and adopts that rolling technology is one-body molded the negative thread (1d) be connected with the spiral of fuel lid, described anti-overflow cover (3) to be fixedly mounted in fueling cavity and to be positioned at the below place of negative thread (1d).
2. a kind of fuel oil refueling pipe assembly according to claim 1, it is characterized in that: outside the oiling end (11) of described fuel filler pipe (1), be arranged with butt flange assembly (4), described butt flange assembly (4) comprises and adopts spot-welding technology to be weldingly fixed on to refuel the end steel flange dish (41) of (11) and location to be arranged on packing seal (42) on the ring surface of steel flange dish (41) upper end, described packing seal (42) bottom surface is shaped with anticreep convex button (42a), described steel flange dish (41) is shaped with to be buckled (42a) with anticreep convex and wears the convex button hole of anticreep (41a) buckled anti-avulsion and coordinate, the outlet side (21) of described freeing pipe (2) adopts the method for whole circle dielectric bonding fixing welding connection hold (11) upper in oiling and be positioned at the below place of butt flange assembly (4).
3. a kind of fuel oil refueling pipe assembly according to claim 2, it is characterized in that: described butt flange assembly (4) is shaped with by the downward through steel flange dish (41) of packing seal (42) bolt hole (4a) that spot-welded bolt wears, the bottom surface of described steel flange dish (41) is provided with the spot welding nut (43) coordinated with spot-welded bolt, and this butt flange assembly (4) is upper is shaped with three bolts hole (4a) at a distance of 120 degree.
4. a kind of fuel oil refueling pipe assembly according to claim 3, it is characterized in that: described anti-overflow cover (3) comprises and the pipe portion (31) of fueling cavity (1a) inwall interference fit and the contraction flow region (32) that is integrally connected under pipe portion (31), the end of this contraction flow region (32) is compressing pipe oil filling port (33), the anti-overflow chamber (K) preventing fuel oil excessive is formed between described contraction flow region (32) and the inwall of fueling cavity (1a), and this contraction flow region (32) is shaped with the air gate in the anti-overflow chamber of radial communication (K), the outlet side (21) of described freeing pipe (2) is communicated in fueling cavity (1a) to be had in anti-overflow chamber (K), the stay (34) of hanging arms is provided with in described anti-overflow cover (3).
5. a kind of fuel oil refueling pipe assembly according to claim 4, it is characterized in that: the diameter of described fuel filler pipe (1) is greater than the diameter of freeing pipe (2), the length of run of described fuel filler pipe (1) centrally axis is 877.6 millimeters, the length of run of described freeing pipe (2) centrally axis is 718 millimeters, and described fuel filler pipe (1) and freeing pipe (2) are welded with twice jointly can locate strike separation between fuel filler pipe (1) and freeing pipe (2) and convenient first support (51) equipped with fuel tank and the second support (52).
6. a kind of fuel oil refueling pipe assembly according to claim 5, it is characterized in that: described the first support (51) and the second support (52) are equipped with spot-welded bolt (6), the upper another end relative with being provided with spot-welded bolt (6) one end of described the second support (52) is shaped with increase assembly opening (Q).
7. a kind of fuel oil refueling pipe assembly according to claim 6, it is characterized in that: the inlet end flow forming of described freeing pipe (2) has air inlet to connect convex mouth (22), this freeing pipe (2) upper place of the front end face 28 millimeters apart from air inlet connection convex mouth (22) flow forming has one freeing pipe annular bead (23).
8. a kind of fuel oil refueling pipe assembly according to claim 7, it is characterized in that: the oil outlet end flow forming of described fuel filler pipe (1) has fuel-displaced connection convex mouth (12), the front end face 35 millimeters place flow forming apart from fuel-displaced connection convex mouth (12) on this fuel filler pipe (1) has one fuel filler pipe annular bead (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510421186.2A CN104924894B (en) | 2015-07-17 | 2015-07-17 | A kind of fuel oil refueling pipe assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510421186.2A CN104924894B (en) | 2015-07-17 | 2015-07-17 | A kind of fuel oil refueling pipe assembly |
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| Publication Number | Publication Date |
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| CN104924894A true CN104924894A (en) | 2015-09-23 |
| CN104924894B CN104924894B (en) | 2017-06-13 |
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| CN201510421186.2A Active CN104924894B (en) | 2015-07-17 | 2015-07-17 | A kind of fuel oil refueling pipe assembly |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105835691A (en) * | 2016-03-29 | 2016-08-10 | 奇瑞汽车股份有限公司 | Sealing combination structure for fuel oil system |
| CN106004417A (en) * | 2016-07-05 | 2016-10-12 | 宁波舜江汽车部件制造有限公司 | Oil filling pipe with double-side zinc-plating structure and processing method thereof |
| CN108443543A (en) * | 2018-03-26 | 2018-08-24 | 武汉腾索科技有限公司 | A kind of mechanical sealing valve |
| CN108612889A (en) * | 2018-06-28 | 2018-10-02 | 武汉腾索科技有限公司 | A kind of mechanical sealing valve |
| CN108612888A (en) * | 2018-06-28 | 2018-10-02 | 武汉腾索科技有限公司 | A kind of mechanical sealing valve assembly |
| CN109109656A (en) * | 2018-09-02 | 2019-01-01 | 邓华明 | Integral type capless filler tube |
| CN112572135A (en) * | 2021-02-03 | 2021-03-30 | 宁波舜江汽车部件制造有限公司 | Automobile concentric oil filling pipe assembly with nylon pipe |
| CN112793412A (en) * | 2021-03-12 | 2021-05-14 | 浙江锦安汽车零部件有限公司 | Oil filling pipe and production process thereof |
| CN113276666A (en) * | 2021-06-25 | 2021-08-20 | 江西昌河汽车有限责任公司 | Truck oil tank with built-in oil filler neck |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105835691A (en) * | 2016-03-29 | 2016-08-10 | 奇瑞汽车股份有限公司 | Sealing combination structure for fuel oil system |
| CN106004417A (en) * | 2016-07-05 | 2016-10-12 | 宁波舜江汽车部件制造有限公司 | Oil filling pipe with double-side zinc-plating structure and processing method thereof |
| CN108443543A (en) * | 2018-03-26 | 2018-08-24 | 武汉腾索科技有限公司 | A kind of mechanical sealing valve |
| CN108612889A (en) * | 2018-06-28 | 2018-10-02 | 武汉腾索科技有限公司 | A kind of mechanical sealing valve |
| CN108612888A (en) * | 2018-06-28 | 2018-10-02 | 武汉腾索科技有限公司 | A kind of mechanical sealing valve assembly |
| CN108612888B (en) * | 2018-06-28 | 2023-08-01 | 武汉腾索科技有限公司 | Mechanical sealing valve assembly |
| CN109109656A (en) * | 2018-09-02 | 2019-01-01 | 邓华明 | Integral type capless filler tube |
| CN112572135A (en) * | 2021-02-03 | 2021-03-30 | 宁波舜江汽车部件制造有限公司 | Automobile concentric oil filling pipe assembly with nylon pipe |
| CN112793412A (en) * | 2021-03-12 | 2021-05-14 | 浙江锦安汽车零部件有限公司 | Oil filling pipe and production process thereof |
| CN112793412B (en) * | 2021-03-12 | 2022-02-11 | 浙江锦安汽车零部件有限公司 | Oil filling pipe and production process thereof |
| CN113276666A (en) * | 2021-06-25 | 2021-08-20 | 江西昌河汽车有限责任公司 | Truck oil tank with built-in oil filler neck |
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| Publication number | Publication date |
|---|---|
| CN104924894B (en) | 2017-06-13 |
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