CN103038082A - Cap cover and tank equipped therewith - Google Patents
Cap cover and tank equipped therewith Download PDFInfo
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- CN103038082A CN103038082A CN2011800324819A CN201180032481A CN103038082A CN 103038082 A CN103038082 A CN 103038082A CN 2011800324819 A CN2011800324819 A CN 2011800324819A CN 201180032481 A CN201180032481 A CN 201180032481A CN 103038082 A CN103038082 A CN 103038082A
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- Prior art keywords
- filling port
- oil filling
- main body
- cover main
- sealing
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D51/00—Closures not otherwise provided for
- B65D51/16—Closures not otherwise provided for with means for venting air or gas
- B65D51/1605—Closures not otherwise provided for with means for venting air or gas whereby the interior of the container is maintained in permanent gaseous communication with the exterior
- B65D51/1622—Closures not otherwise provided for with means for venting air or gas whereby the interior of the container is maintained in permanent gaseous communication with the exterior by means of a passage for the escape of gas between the closure and the lip of the container mouth
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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
Abstract
Provided is a cap cover such that the clogging of a vent section and the intrusion of dust into a tank can both be suppressed. Also provided is a tank equipped with said cap cover. Said cap cover is equipped with a peripheral wall covering section (16b) and an annular seal section (17), said peripheral wall covering section (16b) serving to cover, from the outside, a filler neck (12) and a peripheral wall (13b) of an oil filler cap (13), on the entire periphery of the filler neck (12) around the axis line thereof, in such a way as to extend over the outer peripheral surfaces of the filler neck (12) and the peripheral wall (13b), and said annular seal section (17) being provided in such a way as to protrude inwardly from the portion of the peripheral wall covering section (16b) that covers the filler neck (12). The seal section (17) comes into close contact with the outer peripheral surface of the filler neck (12), with the result that between the peripheral wall covering section (16b) and the filler neck (12), there is formed a second vent section (20) whereby the outside air introduced through an opening of the peripheral wall covering section (16b) is guided to a first vent section (14), while being made to whirl around the axis line of the filler neck (12), said opening being located in such a way as to face a tank body (23).
Description
Technical field
The present invention relates to the fuel tank that is installed on the housing of lid and possesses this housing.
Background technology
Fig. 8 and Fig. 9 have represented to be arranged at the existing Fuel Tank of hydraulic excavator.
Be provided with the air extractor vent 4 that makes the L font that is communicated with inside and outside the fuel tank between oil cap 3 and the oil filling port 2.Particularly, at the air channel that is formed for consisting of above-mentioned air extractor vent 4 for the position relative with upper surface oil filling port 2 and side in the medial surface of oil cap 3.The discrepancy effect of the air in the fuel tank corresponding with the increase and decrease of fuel (drafting apparatus effect) is carried out (with reference to patent documentation 2) via above-mentioned air extractor vent 4.
On the other hand, the lubrication boxs such as gear case are disclosed in the patent documentation 3.This lubrication box possesses the oil-feed port of section disposed thereon and is embedded in the oil cap that supplies of this oil-feed port.Above-mentioned possess for oil cap: the head that stops up above-mentioned oil-feed port from the top; Can insert the trunk in the oil-feed port; And the protuberance of a plurality of ring-types, from this trunk along circumferentially outstanding and on the length direction of trunk devices spaced apart and arranging.Between the opening edge of above-mentioned head and above-mentioned oil-feed port, form ventilating part.In above-mentioned a plurality of protuberances, form respectively the notch that its peripheral part is cut open.Above-mentioned each notch is to arrange in the mode that upwards becomes different phase places week in adjacent a pair of protuberance.Thus, arrive the path of the labyrinth-like of above-mentioned ventilating part owing to form in the lubrication box of in patent documentation 3, putting down in writing in oil-feed port, so the oil that can suppress in the fuel tank overflows from ventilating part because of inclination or the vibration of body.
In the patent documentation 1 of only ventilating by the air extractor vent 4 that is formed on the interior all sides that supply oil cap 3 with L font groove, 2 technology of being put down in writing, produce following problem.Particularly, when using hydraulic excavator in the scene that the on-the-spot or a large amount of sand and dust that are full of dust drift, dust (comprise sand and dust, lower with) in air extractor vent stops up, or as its last stage, dust is inhaled in the fuel tank and sneaks in the fuel.
In addition, when the technology that can imagine in patent documentation 3 record is applied to fuel tank, the ventilating part that utilizes labyrinth-like prevent that dust from invading in the fuel tank aspect can obtain certain effect.
But above-mentioned ventilating part forms linearity and directly to outside opening.Therefore, can not prevent that dust is blocked in this ventilating part.
In addition, namely allow to the ventilating part blocks dust by the inboard that is formed on oil-feed port, the dust that is blocked also may descend and falls in fuel tank through ventilating part lentamente because of the vibration of body.
And, need to be at the ventilating part (protuberance of a plurality of ring-types and notch) for the additional labyrinth-like of oil cap self.Therefore, corresponding dusty scene and few scene must be prepared to supply oil cap with common these two kinds of the oil caps that supply for oil cap and Bi Qi cheapness of ventilating part, and be distinguished and use.And, must exchange for oil cap integral body existing.Because these situations are so that the aspect of cost and management becomes unfavorable.
Patent documentation 1: Japanese Patent Publication communique JP 2009-166807 number
Patent documentation 2: Japanese Patent Publication communique Unexamined Patent 9-290854 number
Patent documentation 3: Japanese Patent Publication communique Unexamined Patent 8-28782 number
Summary of the invention
The fuel tank that the object of the present invention is to provide a kind of housing and possess this housing, this housing can suppress the obstruction of ventilating part and the dust intrusion both of these case in the fuel tank.
For solving above-mentioned problem, the invention provides a kind of fuel tank, it possesses: oil filling port, from outstanding for the fuel tank main body of taking in fluid; Lid can be installed on above-mentioned oil filling port under being formed for extraneous air is imported the state of the first ventilating part in the above-mentioned oil filling port; And housing, can be loaded and unloaded on above-mentioned lid, wherein, above-mentioned housing possesses the sealing of cover main body and at least one ring-type, the cover main body covers above-mentioned lid and above-mentioned oil filling port, a plurality of positions of the short transverse of the above-mentioned cover main body of the part of the covering above-mentioned oil filling port of the sealing of this ring-type from above-mentioned cover main body are outstanding the setting to the inside, by allowing above-mentioned at least one sealing be close to the outer peripheral face of above-mentioned oil filling port, form the second ventilating part between above-mentioned cover main body and above-mentioned oil filling port, the extraneous air that this second ventilating part is used for importing from the peristome of above-mentioned cover main body imports above-mentioned the first ventilating part around the axis of above-mentioned oil filling port while rotating.
In addition, the invention provides a kind of housing, it can be loaded and unloaded on the lid of fuel tank, this fuel tank possesses oil filling port and described lid, oil filling port is from outstanding for the fuel tank main body of taking in fluid, the described lid under being formed for extraneous air is imported the state of the first ventilating part in the above-mentioned oil filling port can be installed on above-mentioned oil filling port, and above-mentioned housing possesses the sealing of cover main body and at least one ring-type, the cover main body covers above-mentioned lid and above-mentioned oil filling port, a plurality of positions of the short transverse of the above-mentioned cover main body of the part of the covering above-mentioned oil filling port of the sealing of this ring-type from above-mentioned cover main body are outstanding the setting to the inside, by allowing above-mentioned at least one sealing be close to the outer peripheral face of above-mentioned oil filling port, form the second ventilating part between above-mentioned cover main body and above-mentioned oil filling port, the extraneous air that this second ventilating part is used for importing from the peristome of above-mentioned cover main body imports above-mentioned the first ventilating part around the axis of above-mentioned oil filling port while rotating.
According to the present invention, can suppress the obstruction of ventilating part and the dust intrusion both of these case in the fuel tank.
Description of drawings
Fig. 1 is the side sectional view of the related fuel tank of expression the first embodiment of the present invention.
Fig. 2 (a) is the IIa-IIa line cutaway view of Fig. 1, and Fig. 2 (b) is the IIb-IIb cutaway view of Fig. 1.
Fig. 3 is the block diagram of seeing when downside is observed the fuel feeding housing.
Fig. 4 is the partial enlarged drawing of Fig. 1.
Fig. 5 is the figure that the inner peripheral surface of fuel feeding housing is launched expression.
Fig. 6 is that expression is for the figure of the experimental result of the dust blocking effect of explanation fuel feeding housing.
Fig. 7 is the figure suitable with Fig. 5 of expression the second embodiment of the present invention.
Fig. 8 is the cutaway view of the existing oil-feed port structure of expression.
Fig. 9 is the partial enlarged drawing of Fig. 8.
The specific embodiment
Referring to Fig. 1 to Fig. 7 embodiments of the present invention are described.And following embodiment is the example that the present invention is specialized, and does not have the character that limits technical scope of the present invention.
In the following embodiments, the explanation of matching background technology, illustration be equipped on the Fuel Tank of hydraulic excavator.
The first embodiment (referring to figs. 1 through Fig. 6)
The related Fuel Tank 11 of the first embodiment possesses: fuel tank main body 23 is used for taking in fuel (fluid); Oil filling port (oil-feed port) 12 is for cylindric and outstanding and be used for to above-mentioned fuel tank main body 23 interior fuel supplying from the upper surface of above-mentioned fuel tank main body 23; For oil cap 13, releasably be installed on the top ends of above-mentioned oil filling port 12 by screw thread embedded structure etc.; And fuel feeding housing 15, releasably be installed on above-mentioned for oil cap 13.
Possess for oil cap 13: the perisporium 13b that can be embedded in the top ends of above-mentioned oil filling port 12 outward; Stop up the cap 13a of the peristome of above-mentioned perisporium 13b; And the oppositely outstanding projection 13c from the middle body of above-mentioned cap 13a to perisporium 13b.Be installed under the state of above-mentioned oil filling port 12 for oil cap 13 above-mentioned, at above-mentioned oil filling port 12 and above-mentioned the first ventilating part 14 for forming the L font between the oil cap 13, this first ventilating part 14 be used for from above-mentioned perisporium 13b towards the peristome of fuel tank main body 23 sides to oil filling port 12 interior importing extraneous airs.Particularly, form air channel 13d at above-mentioned medial surface for oil cap 13 in the mode that is across to cap 13a from above-mentioned perisporium 13b.By above-mentioned the first ventilating part 14, the discrepancy of the air in the fuel tank main body 23 corresponding with the increase and decrease of fuel becomes possibility.Below, exist the effect that air is come in and gone out in the above described manner to be called the situation of drafting apparatus effect.
Above-mentioned fuel feeding housing 15 is formed by the elastomeric material of rubber or elastoplast etc.In addition, be added to the existing oil cap 13 that supplies behind fuel feeding housing 15 quilts.
Particularly, fuel feeding housing 15 possesses the sealing 17 of cover main body 16 and a plurality of ring-types, and cover main body 16 is for covering for oil cap 13 and oil filling port 12, and sealing 17 is from the to the inside outstanding setting of a plurality of positions of the short transverse of this cover main body 16.
Cover main body 16 possesses the 16a of the covering of lid section and the perisporium covering 16b of section, and the lid covering 16a of section covers the above-mentioned circumference that supplies the cap 13a of oil cap 13 from the top, and the perisporium covering 16b of section is from the above-mentioned perisporium 13b for oil cap 13 of outer side covers.Be formed with the through hole 16c that passes for the projection 13c for above-mentioned fuel feeding lid 13 at the above-mentioned lid covering 16a of section.The perisporium covering 16b of section is in the mode of the outer peripheral face of crossing over above-mentioned perisporium 13b and oil filling port 12, spreads all over whole side face centered by the axis (straight line of above-below direction) by oil filling port 12 from the top of outer side covers perisporium 13b and oil filling port 12.
Above-mentioned a plurality of sealing 17 is used for forming the second ventilating part 20 between above-mentioned cover main body 16 and oil filling port 12, the extraneous air that this second ventilating part 20 is used for importing from the peristome towards fuel tank main body 23 sides of above-mentioned cover main body 16 imports above-mentioned the first ventilating part 14 around the axis of oil filling port 12 while rotating.Particularly, as shown in Figure 4, each sealing 17 larger than the gap size L2 till from the outer peripheral face of above-mentioned oil filling port 12 to the inner peripheral surface of the above-mentioned perisporium covering 16b of section respectively from the outstanding size L1 of the above-mentioned perisporium covering 16b of section.Therefore, as shown in Figure 4, wrap in the top ends of each sealing 17 under the state (top ends of sealing 17 is along the state of the degree of the crooked package dimensions R1 of the direction parallel with the axis of oil filling port 12) of the outer peripheral face of oil filling port 12, can make sealing 17 be close to the outer peripheral face of oil filling port 12.In addition, each sealing 17 is by along the axis direction devices spaced apart of the above-mentioned perisporium covering 16b of section and arrange abreast, thereby forms air channel 18 between adjacent sealing 17.And, be formed for respectively the notch 19 that adjacent air channel 18 is communicated with in the circumferential part of each sealing 17.And the notch 19 that forms at mutually adjacent sealing 17 is formed on around the different position of the axis of the above-mentioned perisporium covering 16b of section (in diagram, being formed on the position that differs 90 ° around axis).Therefore, the extraneous air that imports from the peristome of the perisporium covering 16b of section carries out arriving the first ventilating part 14 around the rotation of the axis of oil filling port 12 with along the movement of the length direction of oil filling port 12 repeatedly.That is, in the present embodiment, each sealing 17 is close to the outer peripheral face of oil filling port 12, thereby forms the second ventilating part 20 that comprises above-mentioned air channel 18 and notch 19 between the perisporium covering 16b of section and oil filling port 12.Thus, via the first ventilating part 14 and the second ventilating part 20, allow the inside and outside gas communication of fuel tank main body 23.And, in the present embodiment, be formed at respectively each sealing 17 around the axis of the perisporium covering 16b of section with two notchs 19 that 180 ° of intervals arrange.
As mentioned above, in the first embodiment, by allowing a plurality of sealings 17 be close to the outer peripheral face of oil filling port 12, form the second ventilating part between the perisporium covering 16b of section and oil filling port 12, the extraneous air that this second ventilating part is used for importing from the peristome towards fuel tank main body 23 sides of the perisporium covering 16b of section imports the first ventilating part 14 around the axis of oil filling port 12 while rotating.Therefore, in above-mentioned Fuel Tank 11, can when allowing the circulation of air by the first ventilating part 14 and the second ventilating part 20, utilize the dust in the second ventilating part 20 blocks air.Particularly, the second ventilating part 20 can prevent by the labyrinth effect take sealing 17 as barrier the intrusion of dust because extraneous air is imported the first ventilating part 14 around the axis of oil filling port 12 while rotating.
In addition, in the 1st embodiment, the second ventilating part 20 is formed on the outside of oil filling port 12.Therefore, can prevent from being fallen in fuel tank main body by the dust that the second ventilating part 20 stops.Particularly, the dust that is stopped by the second ventilating part 20, because deadweight or vibration fall in the outer fix of oil filling port 12 lower end side (fuel tank main body 23 sides) to fuel feeding housing 15, and naturally discharge to the outside of the perisporium covering 16b of section via the second ventilating part 20.That is, and different from the situation of additional labyrinth structure with it for oil cap 13, the worry that does not exist the dust that is blocked to fall in the fuel tank main body 23.
And the related fuel feeding housing 15 of the first embodiment can be loaded and unloaded on for oil cap 13.Therefore, by in time fuel feeding housing 15 being cleaned, can remove neatly the dust of attachment removal under dismantling for oil cap 13.
In this mode, can guarantee based on the first ventilating part 14 for the drafting apparatus function of oil cap 13, and prevent effectively sneaking into of the obstruction of the dust in the first ventilating part 14 and the dust fuel in the fuel tank main body 23.
And the related fuel feeding housing 15 of above-mentioned the first embodiment supplies oil cap 13 from outer side covers.Therefore, can tackle in the mode that is additional to as required existing Fuel Tank with supplying oil cap 13.
That is, only for the fuel tank that uses in the high scene of the possibility of sneaking in the fuel tank main body 23 at the obstruction of the first ventilating part 14 that causes because dust is more or dust, as selecting piece installing to get final product for oil cap 13 additional these fuel feeding housings 15 existing.
Therefore, compare with situation about changing for oil cap self, the aspect of cost, management becomes favourable.
In the first embodiment, be formed with a plurality of sealings 17, thereby between adjacent sealing 17, form air channel 18, and be formed for making the notch 19 of above-mentioned air channel 18 connections at each sealing 17.Therefore, the extraneous air that imports from the peristome of the perisporium covering 16b of section carries out arriving the first ventilating part 14 around the rotation of the axis (horizontal direction) of oil filling port 12 with along the movement of the length direction (above-below direction) of oil filling port 12 repeatedly.
Thus, owing to can effectively utilize a plurality of sealing 17 as barrier, therefore can improve above-mentioned labyrinth effect.Therefore, blocks dust more effectively.
In the first embodiment, the outstanding size L1 of sealing 17 is larger than the gap size L2 between oil filling port 12 and the perisporium covering 16b of section.Thus, wrap in the top ends of sealing 17 under the state of outer peripheral face of oil filling port 12, can make sealing 17 be close to the outer peripheral face of oil filling port 12.That is, as shown in Figure 4, can in the top ends of sealing 17 under the state of the degree of the crooked package dimensions R1 of the direction parallel with the axis of oil filling port 12 (direction up), make sealing 17 be close to the outer peripheral face of oil filling port 12.Therefore, compare with the situation that the top ends that makes sealing 17 does not contact with the outer peripheral face of oil filling port 12 agley, sealing effectiveness improves.Therefore, even tiny dust can not omit yet, and can be chronically practical blocks dust.
In the first embodiment, possesses the 16a of the covering of lid section.Therefore, compare with the situation of utilizing the perisporium covering 16b of section only to cover the perisporium 13b that supplies oil cap 13, can more stably fuel feeding housing 15 be installed on for oil cap 13.And in the first embodiment, the lid covering 16a of section has only covered the circumference of cap 13a, but also can cover from above-mentioned projection 13c top the integral body of cap 13a.
Fig. 6 represents to relate to the experimental result of the dust blocking effect of fuel feeding housing 15.
Prepared following quilt test body A to D.A does not arrange fuel feeding housing 15 (namely being the existing oil-feed port structure of Fig. 8, Fig. 9) by the test body.Quilt test body B is provided with the fuel feeding housing without sealing 17.C is provided with the related fuel feeding housing 15 of the first embodiment (the package dimensions R1 of the top ends of sealing 17 (with reference to Fig. 4) sets 1.0mm for) by the test body.D is provided with the housing with sealing 17 by the test body, and the top ends of sealing 17 is not close to the outer peripheral face (the package dimensions R1 of the top ends of sealing 17 sets 0mm for) of oil filling port 12 with wrapping up.Tested body A to D for these, make artificially dust stop up the accelerated test that occurs.Particularly, behind the air intake fuel tank that dust is swum,, reach pressing in the fuel tank-time of 10.1KPa calculates into the duration of congestion of ventilating part with the air in the negative pressure sucking-off fuel tank of MAX3 liter/min by vacuum pump.
The related duration of congestion by test body C of the first embodiment becomes about 11 times without the quilt test body A of housing.According to these situations, it is remarkable to be stopped up preventing effectiveness by the dust of test body C as can be known.
In addition, can know clearly, although the dust by test body D that makes sealing 17 not be close to oil filling port 12 stops up preventing effectiveness than poor by test body C with wrapping up, than high by test body A, B.
And, in Fig. 6, omitted each by the shade line of test body A to D and the label of each several part.
The second embodiment (with reference to Fig. 7)
The point different from the first embodiment below only is described.
The related fuel feeding housing 15 of the second embodiment has the sealing 21 that is used for forming screw-shaped air channel 22 between the perisporium covering 16b of section and oil filling port 12 that replaces above-mentioned a plurality of sealings 17.Particularly, sealing 21 is to give prominence to the inside a ridge that arranges from the perisporium covering 16b of section.
In the second embodiment, screw-shaped air channel 22 consists of the second ventilating part.Air in the second ventilating part flow as shown shown in form simple helical flow.
At this, dust is taking advantage of above-mentioned helical flow to move to a certain degree the degree of depth in the second vent passage, but sealing 21 consists of the barrier this point and the first embodiment is substantially unchanged.Therefore, aspect the intrusion in the fuel tank main body 23 (not shown) of the caused obstruction of dust that prevents the first ventilating part (not shown) and dust, can obtain enough effects.
But, in the respective embodiments described above, illustration by being formed at the situation that forms the first ventilating part 14 for the air channel 13d of the L font in 13 interior weeks of oil cap, but the first ventilating part 14 is not limited thereto.As long as the first ventilating part 14 is formed on between oil cap 13 and the oil filling port 12, no matter its shape then.And, fuel feeding housing 15 that can above-mentioned embodiment is related be applied to help like this first ventilating part 14 formation for oil cap.
In addition, the fuel tank that is suitable for of above-mentioned fuel feeding housing 15 is not limited to the Fuel Tank of hydraulic excavator.For example, also fuel feeding housing 15 can be applied to the Fuel Tank of Other Engineering machinery.In addition, be not limited to Fuel Tank, can be applied to various fuel tanks.
In addition, in the above-mentioned specific embodiment, mainly comprise the invention with following structure.
Particularly, the invention provides a kind of fuel tank, it possesses: oil filling port, from outstanding for the fuel tank main body of taking in fluid; Lid can be installed on above-mentioned oil filling port under being formed for extraneous air is imported the state of the first ventilating part in the above-mentioned oil filling port; And housing, can be loaded and unloaded on above-mentioned lid, wherein, above-mentioned housing possesses the sealing of cover main body and at least one ring-type, the cover main body covers above-mentioned lid and above-mentioned oil filling port, a plurality of positions of the short transverse of the above-mentioned cover main body of the part of the covering above-mentioned oil filling port of the sealing of this ring-type from above-mentioned cover main body are outstanding the setting to the inside, by allowing above-mentioned at least one sealing be close to the outer peripheral face of above-mentioned oil filling port, form the second ventilating part between above-mentioned cover main body and above-mentioned oil filling port, the extraneous air that this second ventilating part is used for importing from the peristome of above-mentioned cover main body imports above-mentioned the first ventilating part around the axis of above-mentioned oil filling port while rotating.
In addition, the invention provides a kind of housing, it can be loaded and unloaded on the lid of fuel tank, this fuel tank possesses oil filling port and described lid, oil filling port is from outstanding for the fuel tank main body of taking in fluid, the described lid under being formed for extraneous air is imported the state of the first ventilating part in the above-mentioned oil filling port can be installed on above-mentioned oil filling port, and above-mentioned housing possesses the sealing of cover main body and at least one ring-type, the cover main body covers above-mentioned lid and above-mentioned oil filling port, a plurality of positions of the short transverse of the above-mentioned cover main body of the part of the covering above-mentioned oil filling port of the sealing of this ring-type from above-mentioned cover main body are outstanding the setting to the inside, by allowing above-mentioned at least one sealing be close to the outer peripheral face of above-mentioned oil filling port, form the second ventilating part between above-mentioned cover main body and above-mentioned oil filling port, the extraneous air that this second ventilating part is used for importing from the peristome of above-mentioned cover main body imports above-mentioned the first ventilating part around the axis of above-mentioned oil filling port while rotating.
In the present invention, by allowing at least one sealing be close to the outer peripheral face of oil filling port, form the second ventilating part between cover main body and oil filling port, the extraneous air that this second ventilating part is used for importing from the peristome of cover main body imports the first ventilating part around the axis of oil filling port while rotating.Therefore, in the fuel tank that housing involved in the present invention is installed, can be when allowing the circulation of air by the first ventilating part and the second ventilating part, the dust in sharp the second ventilating part blocks air.Particularly, the second ventilating part can prevent by the labyrinth effect take sealing as barrier the intrusion of dust because extraneous air is imported the first ventilating part around the axis of oil filling port while rotating.
In addition, in the present invention, the second ventilating part is formed on the outside of oil filling port.Therefore, can prevent that the dust that is stopped by the second ventilating part from falling in fuel tank main body.Particularly, the dust that is stopped by the second ventilating part because deadweight or vibration fall in the outer fix of the oil filling port lower end side (fuel tank main body side) to the fuel feeding housing, and is discharged to the outside of cover main body naturally via the second ventilating part.That is, from different from the situation of additional labyrinth structure with it at lid, the worry that does not exist the dust that is blocked to fall in the fuel tank main body.
And housing involved in the present invention can be loaded and unloaded on lid.Therefore, by with housing lower and cleaning from the lid dismounting, can remove neatly the dust of attachment removal.
In this mode, can guarantee the drafting apparatus function based on the lid of the first ventilating part, and prevent effectively the intrusion in the fuel tank main body of the obstruction of the dust in the first ventilating part and dust.
And housing involved in the present invention covers from outer side covers.Therefore, can be additional to as required existing fuel tank with lid.
That is, can be only for the fuel tank that uses in the high scene of the possibility of sneaking in the fuel tank main body at the obstruction of the first ventilating part that causes because dust is more or dust, as selecting piece installing to add housing.
Therefore, compare with changing the situation of covering self, the aspect of cost, management becomes favourable.
In above-mentioned housing, comparatively it is desirable to, the sealing of above-mentioned ring-type is formed with a plurality of by the axis direction devices spaced apart ground along above-mentioned cover main body, thereby between adjacent above-mentioned sealing, form air channel, on the circumferential part of the sealing of above-mentioned a plurality of ring-types, be formed for respectively notch that adjacent above-mentioned air channel is communicated with, the notch that forms at the sealing of mutually adjacent above-mentioned ring-type is formed on around the different position of the axis of above-mentioned cover main body, and above-mentioned the second ventilating part comprises above-mentioned air channel and above-mentioned notch.
In this embodiment, be provided with a plurality of sealings, thereby between adjacent sealing, form air channel, and be formed for making the notch of above-mentioned each air channel connection at each sealing.Therefore, the extraneous air that imports from the peristome of cover main body carries out arriving the first ventilating part around the rotation of the axis of oil filling port with along the movement of the length direction of oil filling port repeatedly.
Thus, owing to can effectively utilize a plurality of sealings as barrier, can improve above-mentioned labyrinth effect.Therefore, blocks dust more effectively.
In above-mentioned housing, comparatively it is desirable to, above-mentioned at least one sealing comprises at least one ridge, and this ridge is used for forming the screw-shaped air channel as above-mentioned the second ventilating part between above-mentioned cover main body and above-mentioned oil filling port.
In this embodiment, be formed for forming at least one ridge of screw-shaped air channel.Thus, air mobile becomes simple helical flow.
At this, dust taking advantage of above-mentioned helical flow in the second vent passage mobile to a certain degree, but sealing consists of the barrier this point and above-mentioned embodiment is substantially unchanged.Therefore, can obtain to prevent enough effects of obstruction that the dust of the first ventilating part produces and the dust intrusion in the fuel tank.
In above-mentioned housing, comparatively it is desirable to, the outstanding size from the inner peripheral surface of above-mentioned cover main body of above-mentioned at least one sealing is larger to the gap size of the inner peripheral surface of above-mentioned cover main body than the outer peripheral face from above-mentioned oil filling port.
In the above-described embodiment, the outstanding size of sealing is larger than the gap size between oil filling port and the cover main body.Thus, can wrap in the top ends of sealing under the state (top ends of sealing is along the state of the direction bending parallel with the axis of oil filling port) of the outer peripheral face of oil filling port, make sealing be close to the outer peripheral face of oil filling port.Therefore, compare with the situation that the top ends that makes sealing does not contact with the outer peripheral face of oil filling port agley, sealing effectiveness improves.Therefore, even tiny dust can not omit yet, and can be chronically practical blocks dust.
In above-mentioned housing, above-mentioned lid has the perisporium of the top ends that can be embedded in above-mentioned oil filling port outward and the cap that stops up the peristome of above-mentioned perisporium, above-mentioned cover main body possesses perisporium covering section, perisporium covering section is in the mode of the outer peripheral face of the perisporium of crossing over above-mentioned lid and above-mentioned oil filling port, spread all over whole side face centered by the axis of above-mentioned oil filling port from the above-mentioned perisporium of outer side covers and above-mentioned oil filling port, and be formed with the sealing of above-mentioned at least one ring-type.
According to above-mentioned embodiment, perisporium covering section in the mode of the outer peripheral face of the perisporium of crossing over lid and oil filling port from outer side covers perisporium and oil filling port, thereby can form in the outside of oil filling port above-mentioned the second ventilating part.
In above-mentioned housing, comparatively it is desirable to, above-mentioned cover main body also possesses the lid covering section be used at least a portion of the cap that covers above-mentioned lid.
In this embodiment, also possesses the covering of lid section.Therefore, compare with the situation that only covers the perisporium of lid by perisporium covering section, can more stably be installed on lid.
In above-mentioned housing, above-mentioned the first ventilating part is installed under the state of above-mentioned oil filling port at above-mentioned lid, be arranged between above-mentioned lid and the above-mentioned oil filling port, and can extraneous air be imported in the above-mentioned oil filling port from the peristome towards above-mentioned fuel tank main body side of above-mentioned lid.
In this embodiment, the first ventilating part can import extraneous air in the oil filling port from the peristome towards the fuel tank main body side of lid.Thus, can be with the extraneous air that imports by the second ventilating part by promptly importing in the fuel tank main body between lid and the oil filling port.
In addition, the invention provides a kind of fuel tank, this fuel tank possesses: from give prominence to and be used for supplying the fluid to the oil filling port of the tubular in the above-mentioned fuel tank main body for the fuel tank main body of taking in fluid; Under being formed for extraneous air is imported the state of the first ventilating part in the above-mentioned oil filling port, can be installed on the lid of above-mentioned oil filling port; And described housing, make above-mentioned at least one sealing be close to the outer peripheral face of above-mentioned oil filling port by allowing, form the second ventilating part between above-mentioned cover main body and above-mentioned oil filling port, the extraneous air that this second ventilating part is used for importing from the peristome of above-mentioned cover main body imports above-mentioned the first ventilating part around the axis of above-mentioned oil filling port while rotating.
And, the invention provides a kind of fuel tank, this fuel tank possesses: from give prominence to and be used for supplying the fluid to the oil filling port of the tubular in the above-mentioned fuel tank main body for the fuel tank main body of taking in fluid; Under being formed for extraneous air is imported the state of the first ventilating part in the above-mentioned oil filling port, can be installed on the lid of above-mentioned oil filling port; And described housing, the outstanding size from the inner peripheral surface of above-mentioned cover main body of above-mentioned at least one sealing is larger to the gap size of the inner peripheral surface of above-mentioned cover main body than the outer peripheral face from above-mentioned oil filling port.
Utilizability on the industry
According to the present invention, can suppress the obstruction of ventilating part and the dust intrusion both of these case in the fuel tank.
Nomenclature
L1 gives prominence to size
The L2 gap size
11 Fuel Tanks (example of fuel tank)
12 oil filling ports
13 for oil cap (example of lid)
The 13a cap
The 13b perisporium
14 first ventilating parts
15 fuel feeding housings (example of housing)
16a lid covering section
16b perisporium covering section
17,21 sealings
18,22 air channels
19 notchs
20 second ventilating parts
23 fuel tank main bodies
Claims (16)
1. a fuel tank is characterized in that, comprising:
Oil filling port is from outstanding for the fuel tank main body of taking in fluid;
Lid can be installed on described oil filling port under being formed for extraneous air is imported the state of the first ventilating part in the described oil filling port; And
Housing can be loaded and unloaded on described lid, wherein,
Described housing possesses the sealing of cover main body and at least one ring-type, this cover main body covers described lid and described oil filling port, a plurality of positions of the short transverse of the described cover main body of the part of the covering described oil filling port of the sealing of this ring-type from described cover main body are outstanding the setting to the inside
By allowing described at least one sealing be close to the outer peripheral face of described oil filling port, form the second ventilating part between described cover main body and described oil filling port, the extraneous air that this second ventilating part is used for importing from the peristome of described cover main body imports described the first ventilating part around the axis of described oil filling port while rotating.
2. fuel tank according to claim 1 is characterized in that:
The sealing of described ring-type is formed with a plurality of by the axis direction devices spaced apart ground along described cover main body, thereby forms air channel between adjacent described sealing,
On the circumferential part of the sealing of described a plurality of ring-types, be formed for respectively notch that adjacent described air channel is communicated with,
The notch that forms at the sealing of mutually adjacent described ring-type is formed on around the different position of the axis of described cover main body,
Described the second ventilating part comprises described air channel and described notch.
3. fuel tank according to claim 1 is characterized in that:
Described at least one sealing comprises at least one ridge, is used for forming between described cover main body and described oil filling port the screw-shaped air channel as described the second ventilating part.
4. each described fuel tank in 3 according to claim 1 is characterized in that:
The outstanding size from the inner peripheral surface of described cover main body of described at least one sealing is larger to the gap size of the inner peripheral surface of described cover main body than the outer peripheral face from described oil filling port.
5. each described fuel tank in 4 according to claim 1 is characterized in that:
Described lid possesses the perisporium of the top ends that can be embedded in described oil filling port outward and the cap that stops up the peristome of described perisporium,
Described cover main body possesses perisporium covering section, this perisporium covering section spreads all over whole side face centered by the axis of described oil filling port from the described perisporium of outer side covers and described oil filling port in the mode of the outer peripheral face of the perisporium of crossing over described lid and described oil filling port, and is formed with the sealing of described at least one ring-type.
6. fuel tank according to claim 5 is characterized in that:
Described cover main body also possesses the lid covering section be used at least a portion of the cap that covers described lid.
7. each described fuel tank in 6 according to claim 1 is characterized in that:
Described the first ventilating part is installed under the state of described oil filling port at described lid, is arranged between described lid and the described oil filling port, and can extraneous air be imported in the described oil filling port from the peristome towards described fuel tank main body side of described lid.
8. housing, can be loaded and unloaded on the lid of fuel tank, this fuel tank possesses oil filling port and lid, described oil filling port is from outstanding for the fuel tank main body of taking in fluid, the described lid under being formed for extraneous air is imported the state of the first ventilating part in the described oil filling port can be installed on described oil filling port, and described housing is characterised in that and comprises:
The cover main body covers described lid and described oil filling port; And
The sealing of at least one ring-type, a plurality of positions of the short transverse of the described cover main body of the part of the described oil filling port of covering from described cover main body be outstanding the setting to the inside,
By allowing described at least one sealing be close to the outer peripheral face of described oil filling port, form the second ventilating part between described cover main body and described oil filling port, the extraneous air that this second ventilating part is used for importing from the peristome of described cover main body imports described the first ventilating part around the axis of described oil filling port while rotating.
9. housing according to claim 8 is characterized in that:
The sealing of described ring-type is formed with a plurality of by the axis direction devices spaced apart ground along described cover main body, thereby forms air channel between adjacent described sealing,
On the circumferential part of the sealing of described a plurality of ring-types, be formed for respectively notch that adjacent described air channel is communicated with,
The notch that forms at the sealing of mutually adjacent described ring-type is formed on around the different position of the axis of described cover main body,
Described the second ventilating part comprises described air channel and described notch.
10. housing according to claim 8 is characterized in that:
Described at least one sealing comprises at least one ridge, is used for forming between described cover main body and described oil filling port the screw-shaped air channel as described the second ventilating part.
11. each described housing in 10 according to claim 8 is characterized in that:
The outstanding size from the inner peripheral surface of described cover main body of described at least one sealing is larger to the gap size of the inner peripheral surface of described boot main body than the outer peripheral face from described oil filling port.
12. each described housing in 11 is characterized in that according to claim 8,
Described lid comprises the perisporium of the top ends that can be embedded in described oil filling port outward and the cap of the peristome that stops up described perisporium,
Described cover main body possesses perisporium covering section, this perisporium covering section spreads all over whole side face centered by the axis of described oil filling port from the described perisporium of outer side covers and described oil filling port in the mode of the outer peripheral face of the perisporium of crossing over described lid and described oil filling port, and is formed with the sealing of described at least one ring-type.
13. housing according to claim 12 is characterized in that:
Described cover main body also possesses the lid covering section be used at least a portion of the cap that covers described lid.
14. each described housing in 13 according to claim 8 is characterized in that:
Described the first ventilating part is installed under the state of described oil filling port at described lid, is arranged between described lid and the described oil filling port and can extraneous air be imported in the described oil filling port from the peristome towards described fuel tank main body side of described lid.
15. a fuel tank is characterized in that comprising:
From give prominence to and be used for supplying the fluid to the oil filling port of the tubular in the described fuel tank main body for the fuel tank main body of taking in fluid;
Under the state that the first ventilating part that extraneous air is imported in the described oil filling port is formed, can be installed on the lid of described oil filling port; And
Such as each described housing in the claim 8 to 14, wherein,
By allowing described at least one sealing be close to the outer peripheral face of described oil filling port, form the second ventilating part between described cover main body and described oil filling port, the extraneous air that this second ventilating part is used for importing from the peristome of described cover main body imports described the first ventilating part around the axis of described oil filling port while rotating.
16. a fuel tank is characterized in that comprising:
From give prominence to and be used for supplying the fluid to the oil filling port of the tubular in the described fuel tank main body for the fuel tank main body of taking in fluid;
Under the state that the first ventilating part that extraneous air is imported in the described oil filling port is formed, can be installed on the lid of described oil filling port; And
Such as each described housing in the claim 8 to 10, wherein,
The outstanding size from the inner peripheral surface of described cover main body of described at least one sealing is larger to the gap size of the inner peripheral surface of described cover main body than the outer peripheral face from described oil filling port.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010147409A JP5223891B2 (en) | 2010-06-29 | 2010-06-29 | Tank oil filler structure and oil cap cover |
| JP2010-147409 | 2010-06-29 | ||
| PCT/JP2011/003606 WO2012001925A1 (en) | 2010-06-29 | 2011-06-23 | Cap cover, and tank equipped therewith |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103038082A true CN103038082A (en) | 2013-04-10 |
| CN103038082B CN103038082B (en) | 2016-01-27 |
Family
ID=45401668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180032481.9A Active CN103038082B (en) | 2010-06-29 | 2011-06-23 | Housing and possess the fuel tank of this housing |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5223891B2 (en) |
| CN (1) | CN103038082B (en) |
| WO (1) | WO2012001925A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104512242A (en) * | 2013-09-27 | 2015-04-15 | 丰田合成株式会社 | Fuel oil supply device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7027900B2 (en) * | 2018-01-17 | 2022-03-02 | トヨタ自動車株式会社 | Receptacle caps and vehicles |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54173860U (en) * | 1978-05-26 | 1979-12-08 | ||
| JPS5623133Y2 (en) * | 1977-08-22 | 1981-05-30 | ||
| JPS56173339U (en) * | 1980-05-27 | 1981-12-21 | ||
| JPH02124720U (en) * | 1989-03-23 | 1990-10-15 | ||
| CN1156097A (en) * | 1996-01-23 | 1997-08-06 | 菲尔马·安德烈亚斯·斯蒂勒公司 | Sealing cover for oil filling orifice of fuel tank |
| JPH09290854A (en) * | 1996-04-23 | 1997-11-11 | Hitachi Constr Mach Co Ltd | Air breather |
| CN1415522A (en) * | 2001-11-02 | 2003-05-07 | 本田技研工业株式会社 | Case cover |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH072282Y2 (en) * | 1989-01-30 | 1995-01-25 | トヨタ自動車株式会社 | Fuel tank cap cover |
-
2010
- 2010-06-29 JP JP2010147409A patent/JP5223891B2/en active Active
-
2011
- 2011-06-23 WO PCT/JP2011/003606 patent/WO2012001925A1/en active Application Filing
- 2011-06-23 CN CN201180032481.9A patent/CN103038082B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5623133Y2 (en) * | 1977-08-22 | 1981-05-30 | ||
| JPS54173860U (en) * | 1978-05-26 | 1979-12-08 | ||
| JPS56173339U (en) * | 1980-05-27 | 1981-12-21 | ||
| JPH02124720U (en) * | 1989-03-23 | 1990-10-15 | ||
| CN1156097A (en) * | 1996-01-23 | 1997-08-06 | 菲尔马·安德烈亚斯·斯蒂勒公司 | Sealing cover for oil filling orifice of fuel tank |
| JPH09290854A (en) * | 1996-04-23 | 1997-11-11 | Hitachi Constr Mach Co Ltd | Air breather |
| CN1415522A (en) * | 2001-11-02 | 2003-05-07 | 本田技研工业株式会社 | Case cover |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104512242A (en) * | 2013-09-27 | 2015-04-15 | 丰田合成株式会社 | Fuel oil supply device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5223891B2 (en) | 2013-06-26 |
| WO2012001925A1 (en) | 2012-01-05 |
| JP2012011806A (en) | 2012-01-19 |
| CN103038082B (en) | 2016-01-27 |
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