CN101155708B - Fuel tank inlet device - Google Patents
Fuel tank inlet device Download PDFInfo
- Publication number
- CN101155708B CN101155708B CN2006800109807A CN200680010980A CN101155708B CN 101155708 B CN101155708 B CN 101155708B CN 2006800109807 A CN2006800109807 A CN 2006800109807A CN 200680010980 A CN200680010980 A CN 200680010980A CN 101155708 B CN101155708 B CN 101155708B
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- China
- Prior art keywords
- fuel tank
- block piece
- fastener
- tank inlet
- inlet device
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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
- B60K15/0403—Anti-siphoning devices
Abstract
An inlet device (1) for a tank, the device comprising an attachment portion (2) adapted to allow the device to be secured to a tank or filler neck thereof and an inlet body (5) portion for the receipt of liquid, the inlet body portion comprising an inlet (12) for the ingress of liquid and an outlet for the egress of liquid into a tank, the inlet body portion comprising a wall portion (7) depending from a first end of the device at or in the vicinity of the inlet to an end portion (9) associated with a second end of the device, the end portion having an inner surface (9a) for the receipt of liquid and an outer surface (9b), the outlet being provided by a plurality of bores (10a-10e) in a part (21) of the wall portion associated with the end portion and the inner surface of the end portion being shaped so as to direct liquid towards one or more of said bores, the inner surface of the end portion being provided with a surface of revolution for directing liquid towards one or more of said bores, one or more of said bores extending from a bore inlet (18) for the receipt of liquid to a bore outlet (19) for the egress of liquid, wherein the bore outlet has a greater cross-sectional area than the corresponding bore inlet.
Description
Technical field
The present invention relates to fuel tank inlet device, especially can prevent the fuel tank inlet device that fuel oil is stolen out from fuel tank.
Background technology
Fuel tank inlet device is used for preventing that the fuel oil of fuel tank from being stolen.Many these type of devices are made up of annex and main body two parts, and annex is used for this device firmly is connected to fuel tank, and main body then is used to receive the fuel oil of injection, and in use, main body stretches into (generally being in the fuel tank of vehicle) in the fuel tank.Main body should have sufficient size to hold fuel delivery system.Main body is generally porose, and fuel oil is gone in the fuel tank by these orifice flows.The hole of described main body is all very little, is sucked out fuel tank to prevent the fuel oil in the fuel tank by flexible pipe or allied equipment.This type of installs general easy adverse current, when fuel oil enters the speed of transmission of fuel tank when not enough by aperture, will form counter pressure and make the temporary close of the oil spout mouth of pipe, and may cause outwards gushing in the fuel from fuel tank or spilling; Above-mentioned reflux problem obviously is the incompatibility user demand.
Now existing multiple mode improves fuel tank inlet device to overcome described reflux problem.Some devices improve reflux problem by unnecessary hole is set; A kind of device is not provided with end wall, and changes the part of a wedge shape into, and this part allows fuel oil to pass through, and suppresses siphon and pass through.The device of Blau provides an end wall with wedge structure, and this end wall impels fuel oil to flow to the sidewall of device.
Still there is the problem that refluxes in above-mentioned these devices, and still exist when injecting at a high speed at least.In addition, also there is the problem of other assemblings and secure context in said apparatus.
Summary of the invention
Primary and foremost purpose of the present invention is to solve or alleviate one or more the problems referred to above.
In order to finish primary goal of the present invention, the invention provides a kind of fuel tank inlet device, this device can prevent that liquid fuel from being stolen from fuel tank, this device comprises an annex, this annex can firmly be connected to fuel tank or filler neck with whole device, and a fuel oil injection main body, is used to receive the fuel oil of injection, this main body is made up of an inlet and a delivery port, is respectively applied for the injection and the outflow of fuel oil;
Described injection main body comprises a sidewall, and this sidewall is by installing near inlet or first terminal rising of in-to-in, extremely with second end portion bonded assembly another one end portion of installing;
Described end portion contains an inside face that is used for receiving from the mouth of pipe fuel oil, also contains an outside face;
Described delivery port comprises a plurality of borings of being located at the position that is connected with described end portion on the described sidewall, and the shape of the inside face of described end portion is beneficial to the guiding fuel oil and flows to one or more described boring;
Device among the present invention can inject fuel tank with fuel oil in high flow rate ground, prevents fuel oil stolen simultaneously.
After this ought mention " described boring ", refer to end portion bonded assembly wall on a plurality of borings.Therefore, " at least one described boring " refer to end portion bonded assembly wall on a plurality of borings at least one.What " described boring " referred to is not presumable other apertures of any part or other circulation ducts in the device, such as other apertures or the pipeline in the end portion.
" sidewall and end portion bonded assembly position " refers near the sidewall the end portion.Such sidewall contains the circulation duct of close end portion usually.In use, described boring generally is the minimum circulation duct that fuel oil may flow through.
" boring " is not limited only to the liquid communication passage that comes outbreak out with mechanical or manual, and is not limited only to common columned circulation duct.It comprises a broader category of liquid communication pipelines, such as passing through to grind resulting circulation duct.Similarly, the shape of boring also is not limited only to any form, fuel oil can be introduced fuel tank from injection device by boring.
The shape of end portion inside face is advisable can guide fuel oil to flow to most particularly all boring of boring.
The inside face of end portion preferably tilts to the direction of sidewall.And a plurality of (or each) in the described boring are towards the part of the inside face of end portion, and each part of inside face is advisable to corresponding bore inclining.
The inside face of end portion preferably has a plane of revolution, fuel oil is directed to one or more described borings.Plane of revolution be one by rotate the surface that a two-dimensional curve (" curve " comprises straight line) obtains with an axis.Such plane of revolution can be cylindrical-conical, frustoconical, flaring (such as Gabriel bugle shape) or parabola.Rotation axis may be identical with the longitudinal axis of device.
The inside face of described end portion is preferably taper shape, frustoconical, centrum or truncated cone shape and is advisable, and leads to one or more described boring with the guiding fuel oil.The side of this cone, butt vertebra, centrum, truncated cone part can be evagination, indent, or straight (with straight being advisable).Such design is convenient to the more effective fuel oil of exporting in fuel tank from injection device." centrum " refers at the bottom of the polygon and triangle side extends to the shape on a summit.Such as tetrahedron and classical four sides, the Egypt Pyramids of Giza structure at the end, side." truncated cone " refers to truncated centrum, is similar to " frustoconical " and refers to truncated circular cone.These taper shapes, frustoconical, centrum or truncated cone shape surface do not need azimuthal symmetry.Such as, cylindrical-conical surface is a plane of revolution not necessarily.
At least one (preferably a plurality of) described boring is contiguous or stretch into described end portion.The position of described boring is contiguous or stretch into end portion, and end portion promotes fuel oil to flow into fuel tank from the device fast speed.
Delivery port can further comprise a plurality of apertures of being located at described end portion.Except the described boring that is provided with on the sidewall near end portion, the aperture of this end portion has further promoted fuel from installing flowing of fuel tank.Above-mentioned aperture is higher than on the sidewall and end portion bonded assembly position.Above-mentioned aperture helps to export fuel oil from device.
Described boring extends to the boring delivery port that is used for output liquid from a boring inlet that is used to accept liquid always, and the cross-sectional area of boring delivery port is greater than the cross-sectional area of respective bore input port.
The cross-sectional area of described boring increases to corresponding output boring gradually from injection hole.The formula that extends out boring is like this compared than traditional boring, has reduced the resistance that flow of liquid is subjected to.The output of conventional borehole and the cross-sectional area of inlet equate.
Each boring inlet and boring delivery port determine a wall of a borehole on sidewall, described the wall of a borehole comprises a lower lower wall and a higher upper wall, and described low lower wall extends to the boring delivery port from described boring inlet.In this case, during use, the following borehole sidewall of the following borehole sidewall specific output part of output is low.Such design can help fuel oil output from device faster.
The inside face of described end portion contains unique plane of revolution and enters in one or more described boring with the guiding fuel oil; Single taper shape, frustoconical, centrum or truncated cone shape part have been that is to say.This structure can help fuel oil to flow out from device by actv., enters fuel tank.
Described end portion preferably contains a demarcation line, and this demarcation line is between sidewall and plane of revolution (taper shape, frustoconical, centrum or truncated cone in other words).Best and the described plane of revolution of border region, that is taper shape, frustoconical, centrum or truncated cone girth are close.The border region width between 0.5 to 5mm, is preferably between 1 to 3mm greatly.
If end portion is under the situation of taper shape or frustum of a cone, the projected apex angle of drift angle or frustum of a cone (is defined as θ=2tan
-1(d/2h)) be preferably between 90 to 140 degree.And be preferably between 100 to 120 degree.D is the diameter of conical bottom, and h is the height (or standoff height of truncated cone) of circular cone.If end is centrum or truncated cone, face of centrum and the angle between the adjacent wall are preferably in about 50 to 60 degree between 45 to 70 degree.
The terminal best and terminal inner surface configuration correspondence of external surface shape.Such as, if the end portion inside face is conical, then outside face preferably also is similarly conical.So can reduce the thickness of end portion, helpful to reducing to reflux.
Be preferably at least one described boring and be provided with block piece, be convenient to suppress siphon and enter fuel tank.
A plurality of (preferably each) in the described boring all have block piece to be advisable.And preferably each boring cooperates with same block piece.
Preferably has only single block piece in the described device.
Wherein at least one block piece can unload.At least one block piece can install on the device again.
At least one block piece elasticity is better, is convenient to unload and loads onto on this unit auto levelizer again.
At least one block piece is near the outside face of sidewall.Such design is convenient to more effective output fuel oil to fuel tank.The position of block piece is provided with the outer surface near sidewall, is convenient to actv. output fuel oil to fuel tank.The outside face of sidewall can be provided with the installation that a groove is convenient to block piece.
Effective installation of block piece is convenient in such design.
At least one block piece can be arc.Preferably at least one block piece is an annular.Described block piece preferably contains a clasp.
Described annex and main body are preferably integral structure.Described annex and main body can be processed to form from same block of metal, such as aluminium.
Described annex also can with the manufacturing of coming of sidewall branch.Wall shape part can be made from sheet metal.
In the thickness, the thickness of end portion can be advisable between 2 to 10mm between 2 to 20mm, is preferably between 5 to 8mm.
Described injection device can comprise a plurality of fasteners, and each fastener can contract to the second place from its primary importance near filler neck or fuel tank, can prevent that when primary importance locking apparatus is moved or unloads from fuel tank, and device can be removed when the second place from this fuel tank.
A device like this can connect a fuel tank and not puncture this fuel tank or filler neck, and can remove from this fuel tank.
Described annex preferably contains one or more lugs, for example the formpiston part of bayonet adapting device.The bayonet adapting device is a kind of convenient manner that will install edge joint to fuel tank, because fuel tank has a fuel cap receiving unit usually, this part contains the former part of a bayonet adapting device.
When in primary importance, the end of each fastener is preferably near filler neck or fuel tank.
When in primary importance, described fastener is preferably laterally outside or radially stretch out from main body or annex.
When primary importance, described fastener preferably engages with the inside face of fuel tank or filler neck.
Fastener zone in the described device has the inner chamber that can receive fuel oil from the mouth of pipe, and described fastener protrudes from this device when primary importance, and described fastener is withdrawn in the described device at least in part when the second place.Described fastener can touch from the inside of device, so that move this fastener between the primary importance and the second place.Described fastener contains one can be for the structure of instrument insertion.(as hexagonal hole or criss cross aperture).
It is to extend shape that at least one fastener is preferably arranged.
Each fastener may contain a screw thread with auxiliary this its move to the second place from primary importance.
Preferably also contain one or more block piece, when fastener during in primary importance these block pieces can limit the fastener contact, move to the second place to prevent fastener from primary importance.When needs unload device, need make relatively difficulty of the process of unloading by suitable design, this sampling device can not be removed easily.Be preferably in device inside at least one block piece is set.At least one described block piece can limit supplying the contact of the structure of instrument insertion in the described fastener.(if this fastener contains a structure that can supply instrument to insert).
A block piece is connected with a plurality of or preferably all fastener.If latter's (being connected with all joints), then block piece can limit the contact to all fasteners.
At least one block piece is arc.If annular or semicircle better.This design-calculated structure is suitable for many devices.
At least one block piece has an outside face and an inside face to be advisable.
In use, the inside face of at least one block piece is concordant with adjacent surface is advisable.The outside face of at least one block piece is stair-stepping being advisable.At least one block piece can be set to one high and one low two parts, and the maximum outside dimension of higher part compares wanting greatly of lower part.When block piece when being arc, this design is especially effective.
At least one block piece injects main body with fuel oil or annex is connected with friction fit, in order to prevent moving of at least one block piece.This design prevents that block piece from injecting main body or annex is removed from fuel oil.
At least one block piece is to show the block piece that surreptitiously opens (tamper-evident) to be advisable.At least one block piece is frangible or the shaping material.Like this, when the people attempts block piece removed, will cause the breakage of block piece, such as, this block piece will be moulded is foldable structure.That be out of shape or damaged block piece cannot be put back to the home position in the device again, and can know stolen opening by this distortion or damaged block piece.
Described sidewall can be set to easy tubular structure.The common desirable cylindrical-shaped structure of this sidewall.Such as the column in complete circle cross section or the column structure of square-section.
Existing many orthodox methods are connected to fuel tank or filler neck securely with antitheft fuel oil injection device, in case locking apparatus is mobile.One of them thrusts fuel tank or filler neck with tungstenworkholder exactly, even because the hole that these assemblings the time are stung is out blocked by rivet, also might cause oozing out of fuel oil, causes danger, and therefore this method obviously is not very desirable.Infiltrate in the fuel from fuel tank, flow on the road, will cause the road skid hazards.When the fuel tank that is pierced in the fracture of rivet or other tampers, when loosening, the more massive fuel leakage of easier generation.The another one method is to use some adhesives.This type of adhesives can for good and all be adhered to device on the fuel tank, and this is not very convenient.In addition, even after device is removed, remaining adhesives will be stayed on device and/or the fuel tank, need to remove in addition.Many adhesivess also need long cure time in use, and fuel tank can not charge into fuel oil before complete curing.Adhesives also can slowly reduce performance, causes bonding no longer tight.In addition, even very strong adhesives also may be removed under distortion action, such as being when big spanner is made lever using Stillson (Stilson) instrument.Need clean very much with the bonding surperficial fitness for purpose of adhesives.And need to use the difficult expectation of how many adhesivess, too much or very few adhesives all may cause problem.
Existing certain methods pierces through fuel tank in order to solution or uses the problem of adhesives.In one of them device, use the chock of a spring load, be equipped with the device of bayonet adapting device just can rotate up like this, and device cannot directly unload.This device also is provided with barb in case the moving of locking apparatus.The design of these barbs or anti-locking apparatus moves, or after device is moved, will occur significantly damaged or damage.
The another one aspect of the fuel tank injected system among the present invention is solution or has alleviated at least one described problem.
According to above-mentioned second purpose, the present invention is a fuel tank inlet device that prevents that liquid fuel is stolen from fuel tank, comprising a fuel oil injection main body that is used to accept fuel oil, this fuel oil injects main body and comprises an inlet that is used to inject fuel oil, and one is used to export the delivery port of fuel oil to fuel tank;
Comprise a plurality of fasteners in the described device, each fastener can move to the second place from primary importance, to prevent that this device from being unloaded from fuel tank, this device can unload from fuel tank fastener in the time of on the second place near filler neck or fuel tank when in primary importance.
This device can not need to pierce through fuel tank or filler neck and be adaptive with it, and can unload from fuel tank.
This device can contain an annex so that it firmly is connected on fuel tank or the filler neck.
Annex contains one or more lugs, for example the formpiston part of bayonet adapting device.The bayonet adapting device is a kind of device to be linked to the facilitated method of fuel tank, because fuel tank has a fuel cap receiving unit usually, this part contains the former part of a bayonet adapting device.
When in primary importance, fastener is laterally outside or radially stretch out from main body or annex.
In primary importance, each fastener (part especially endways) is near fuel tank or filler neck.
Fastener zone in the described device has the inner chamber that can receive fuel oil from the mouth of pipe, and described fastener protrudes from this device when primary importance, and described fastener is withdrawn in the described device at least in part when the second place.Described fastener can touch from the inside of device, so that move this fastener between the primary importance and the second place.Described fastener contains one can be for the structure (as hexagonal hole or criss cross aperture) of instrument insertion.
It is to extend shape that at least one fastener is preferably arranged.
Each fastener may contain a screw thread with auxiliary this its move to the second place from primary importance.
Preferably also contain one or more block piece, when fastener during in primary importance these block pieces can limit the fastener contact, move to the second place to prevent fastener from primary importance.When needs unload device, need make relatively difficulty of the process of unloading by suitable design, this sampling device can not be removed easily.Be preferably in device inside at least one block piece is set.At least one described block piece can limit the contact that can supply the structure of instrument insertion in the described fastener (if this fastener contains a structure that can supply instrument to insert).
A block piece is connected with a plurality of or preferably all fastener.If latter's (being connected with all joints), then block piece can limit the contact to all fasteners.
At least one block piece is arc.If annular or semicircle better.This design-calculated structure is suitable for many devices.
At least one block piece has an outside face and an inside face to be advisable.
In use, the inside face of at least one block piece is concordant with adjacent surface is advisable.The outside face of at least one block piece is stair-stepping being advisable.At least one block piece can be set to one high and one low two parts, and the maximum outside dimension of higher part compares wanting greatly of lower part.When block piece when being arc, this design is especially effective.
At least one block piece injects main body with fuel oil or annex is connected with friction fit, in order to prevent moving of at least one block piece.This design prevents that block piece from injecting main body or annex is removed from fuel oil.
At least one block piece is to show the block piece that surreptitiously opens (tamper-evident) to be advisable.At least one block piece is frangible or the shaping material.Like this, when the people attempts block piece removed, will cause the breakage of block piece, such as, this block piece will be moulded is foldable structure.That be out of shape or damaged block piece cannot be put back to the home position in the device again, and can know stolen opening by this distortion or damaged block piece.
Described sidewall can be set to easy tubular structure.The common desirable cylindrical-shaped structure of this sidewall.Such as the column in complete circle cross section or the column structure of square-section.
Fuel oil injects main body and comprises a sidewall.This sidewall starts from being positioned at or near first end of this device of described inlet, and ends at second end of this device end portion; This end portion has an inside face to receive fuel oil and an outside face from the mouth of pipe; Described delivery port comprises a plurality of borings of being located at the position that is connected with described end portion on the described sidewall, and the shape of the inside face of described end portion is beneficial to the guiding fuel oil and flows to one or more described boring.
The promotion that above-mentioned design is very easy fuel oil from injection device, flow out fast, enter fuel tank.
Second kind of fuel tank inlet device among the present invention can comprise each characteristic of first kind of fuel tank inlet device.Such as, the inside face of end portion contains plane of revolution, such as taper shape, frustoconical, paraboloidal or tubaeform to guide fuel oil to enter in the described boring.
Description of drawings
Below in conjunction with accompanying drawing the injection device among the present invention is described in detail:
Fig. 1 is the lateral plan of fuel tank inlet device in a preferred embodiment of the invention;
Fig. 2 is the generalized section of device shown in Figure 1;
Fig. 3 is the local structure scheme drawing of device shown in Figure 1, wherein shows anti-unnecessary mobile sunk serew of locking apparatus and the block piece that prevents to touch this screw rod;
Fig. 4 a be a boring with the transparent view of end portion bonded assembly side-walls;
Fig. 4 b is the generalized section of holing shown in Fig. 4 a.
The specific embodiment
Fig. 1 and 2 is respectively the lateral plan and the generalized section of fuel tank inlet device in a preferred embodiment of the invention, and the inside face of end portion has a cylindrical-conical part to flow to sidewall with the guiding fuel oil in the device.This fuel tank inlet device label in the drawings is 1, and the liquid fuel that it can prevent to be equipped with in the fuel tank of this device is stolen.Device 1 contains an annex 2, and this annex can be connected on a fuel tank or the filler neck (filler neck) device 1 securely; Fuel oil injects the reception that main body 5 is used for fuel oil, and fuel oil injects main body 5 and contains an inlet 12 to inject fuel oil, also contains a delivery port to export fuel oil in fuel tank.Fuel oil injection main body 5 also has a sidewall 7, and this structure is from installing near inlet 12 or first end of in-to-in, extremely with second end portion bonded assembly another one end portion 9 of installing 1.End portion 9 contains an inside face 9a, the latter is used for receiving fuel oil from fuel nozzle, and outside face 9b, be used to connect fuel tank in use, and the shape of the inside face 9a of end portion 9 is convenient to guide fuel oil to flow in the sidewall 7 and borings 21 places, terminal 9 bonded assembly positions (10a-e for example holes).
Generally about 7mm is thick for end portion.Such thickness can sustain the physical damnification on the end portion 9, and these physical damnifications may be owing to attempt rod shape or rigid body filled in end portion so that the device of siphon after the damage inserts fuel tank.The shape of the outside face 9b of end portion should be consistent with the inside face 9a of end portion, that is to say, outside face 9a also is a conic section.Such design has guaranteed that the thickness of end portion is suitable, and is enough thick in to prevent external damage on the one hand, enough thin on the other hand to guarantee that the fuel oil bleeder has sufficiently high flow velocity when flowing into fuel tank.Found that if the shape of outside face is not under the situation of design like this (such as if outside face is the plane) fluid flow path is longer so, this may cause wishing the reflux problem as far as possible avoided.
Some apertures 14 are arranged on the end portion 9.Aperture 14 is used to make the fuel oil bleeder.Aperture 14 extends to the outside face 9b of end portion 9 from inside face 9a always, and parallel fully with the device longitudinal axis.
The sidewall 7 of part 9 tops is provided with aperture 8 endways.These apertures are elongation shape, and the major axis of each aperture is parallel fully with the longitudinal axis of device 1.Such structure is convenient to more effective promotion fuel oil and is flowed out from device, enters into fuel tank and goes.End portion 9 does not guide fuel oil to aperture 8.
Boring 10a-e be positioned at sidewall than lower part 21, near end portion 9.The inside face 9a of end portion 9 is made up of a cone shape part, sees Fig. 2.About 110 degree of its angle θ (see figure 2).The guiding of the shape of this circular conical surface enters wherein fuel oil in described boring 10a-e, and these are holed in the position 21 near the sidewall 7 of end portion 9.The concrete structure of each boring 10a-e is seen Fig. 4 a and Fig. 4 b.Fig. 4 b is by the 0-0 plane, a generalized section of obtaining for the described boring in Fig. 4 a transparent view.Each boring all has a boring inlet 18 and a boring delivery port 19, and the former is connecting inside surface of side wall 22, and the latter is connecting the outside face 23 of sidewall 7.In use, fuel nozzle is inserted in the fuel tank inlet device, fuel oil will flow out from device, enters fuel tank by described boring 10a-e.These fuel oils enter boring inlet 18, and the boring of flowing through enters fuel tank by boring delivery port 19.The cross-sectional area of boring delivery port 19 is bigger than the cross-sectional area of boring inlet 18, helps the reflux problem in the anti-locking apparatus like this.In addition, with reference to figure 4, boring surface 20 contains a higher part 20b and one than lower part 20a.Extend downward boring delivery port 19 than lower part 20a from boring inlet 18.This also helps the reflux problem in the anti-locking apparatus.About 45 degree of angle [alpha].
With reference to figure 1 and Fig. 2, on sidewall 7,, the block piece 11 of a clasp shape is arranged with end portion 9 bonded assembly positions 21.This block piece is arranged in the groove on the outside face 23 of sidewall 7.Block piece can prevent that siphon from passing through described boring 10a-e.In addition, be placed on block piece under the situation on the outside of deivce face and be placed under the situation of inside face, the former resistance of convection cell is smaller.Assembling also is convenient in the easy making of a removable block piece of adorning like this.This block piece is narrow, have approximately 1 to 2mm wide; Thin block piece can not suppress fuel oil significantly and flow out from device, but can suppress siphon enters in the fuel tank.Though can use incorporate sidewall and block piece, narrow, incorporate block piece is difficult to make, and cost is higher.For the ease of understanding, block piece 11 is dispensed from Fig. 4 a and 4b.
With reference to Fig. 1,2 and 3, device 1 is equipped with a plurality of fastener 4a-c, each fastener can from primary importance (i) contract to the second place (ii), the end of each fastener engages in case locking apparatus is removed from fuel tank with filler neck or fuel tank when primary importance, and when fastener during in the second place, device can be removed from fuel tank.At Fig. 1, among each figure of 2 and 3, fastener 4a-c (being sunk serew at this moment) is in primary importance.On this position, the end of a plurality of sunk serews engages with filler neck or fuel tank.Such joint can prevent that locking apparatus is removed from fuel tank.A block piece 15 is used to block fastener 4a-c.Block piece 15 shown in Figure 2 is at suitable control position.Fig. 3 is the exploded drawings after this block piece 15 is unloaded, with convenient its shape of describing.Attention is for the ease of understanding, a part of only having drawn device in Fig. 3.Block piece is annular (see figure 3) and a higher part 15a arranged and than lower part 15b, and the former external diameter is greater than the latter.Block piece 15 injects main body with the friction fit mode fuel oil of packing into, makes 15 to be difficult to be removed from it.With show among Fig. 2 opposite, the inside face of block piece 15 is concordant with the inside face 22 that fuel oil injects main body.Three fastener 4a-c equidistantly arrange on the circumference of fuel oil injection main body 5.
Unload from fuel tank in order to install 1, can be with sharp or have the instrument (such as chisel) of blade that block piece 15 is unloaded.The sword of chisel impacts then with sudden force facing to the edge of block piece.This will make the block piece breakage, as a rule deformation can take place.This block piece cannot be put back to device more afterwards.That is to say that this block piece is to show surreptitiously to open (tamper-evident).This block piece is done with aluminum, and easy deformation.
The end of fastener 4a-c (part 15 that before is blocked covers) has slit or hexagonal recess, to receive suitable withdrawing device.These fasteners can touch by the inside 16 of device then, can be moved to a retracted position afterwards, and these fasteners 4a-c discord oil tank pipeline engages on this retracted position, and this moment, device 1 can unload from fuel tank.
For erecting device 1, fastener needs withdrawal, and with lug 3a, with registration device 1, this groove is arranged in filler neck or is arranged in the accessory (this accessory contains the former part of bayonet accessory) that is used to install filler cap in the suitable groove of b insertion.Slewing arrangement makes lug be placed on latched position then.Can use suitable instrument (such as interior Allen key or corkscrew) that fastener 4a-c is moved to primary importance, the end of each fastener and filler neck or fuel tank engage on this position.In case fastener 4a-c has been moved to primary importance, block piece 15 will be moved to suitable control position (see figure 2).
Claims (33)
1. one kind prevents the stolen fuel tank inlet device of liquid fuel in the fuel tank, comprises the annex that is used for this device firmly is connected to fuel tank or filler neck, and the injection main body that is used to receive fuel oil; Described injection main body comprises and is used for importing the inlet of fuel oil and is used to export the delivery port of fuel oil to fuel tank; It is characterized in that,
Described injection main body comprises a sidewall, and this sidewall starts from being positioned at or near first end of this device of described inlet, and ends at second end of this device end portion;
Described end portion contains an inside face that is used for receiving from the mouth of pipe fuel oil, also contains an outside face;
Described delivery port comprises a plurality of borings of being located at the position that is connected with described end portion on the described sidewall, and the shape of the inside face of described end portion is beneficial to the guiding fuel oil and flows to one or more described boring;
The inside face of described end portion contains a plane of revolution, is convenient to guide fuel oil to flow to one or more described borings; Described boring extends to the boring delivery port that is used for output liquid from a boring inlet that is used to accept liquid always, and the cross-sectional area of boring delivery port is greater than the cross-sectional area of respective bore input port;
Described device also comprises a plurality of fasteners, and each fastener can be retracted to the second place from primary importance; Fastener is removed to prevent this device near filler neck or fuel tank when primary importance, and this device can unload from fuel tank when the second place; And
One or more block piece, when fastener during in primary importance these block pieces can limit the fastener contact, move to the second place to prevent fastener from primary importance.
2. fuel tank inlet device according to claim 1 is characterized in that, described plane of revolution is taper shape, frustoconical, paraboloidal or tubaeform, enters in the described boring with the guiding fuel oil.
3. fuel tank inlet device according to claim 1 is characterized in that, at least one described boring near or extend to described end portion.
4. fuel tank inlet device according to claim 1, it is characterized in that, each boring inlet and boring delivery port determine a wall of a borehole on sidewall, described the wall of a borehole comprises a lower lower wall and a higher upper wall, and described low lower wall extends to the boring delivery port from described boring inlet.
5. in the fuel tank inlet device according to claim 1, it is characterized in that the inside face of described end portion contains unique plane of revolution and enters in one or more described boring with the guiding fuel oil.
6. fuel tank inlet device according to claim 1 is characterized in that, described end portion contains a demarcation line, and this demarcation line is used to guide fuel oil to flow to one or more described boring between sidewall and plane of revolution.
7. fuel tank inlet device according to claim 1 is characterized in that described end portion is taper shape or frustum of a cone, is defined as θ=2tan
-1(d/2h)) the drift angle or the projected apex angle of frustum of a cone are between 100 to 120 degree, and d wherein is the diameter of conical bottom, and h is the standoff height of the height or the truncated cone of circular cone.
8. fuel tank inlet device according to claim 1 is characterized in that, the external surface shape of described end portion is consistent with the end portion inner surface configuration.
9. fuel tank inlet device according to claim 1 is characterized in that, comprises that also at least one enters the block piece of fuel tank in order to prevent siphon, and wherein at least one described drill hole is equipped with a block piece.
10. fuel tank inlet device according to claim 9 is characterized in that, a plurality of described drill hole are equipped with described block piece.
11. fuel tank inlet device according to claim 9 is characterized in that, has only a block piece in this device.
12. fuel tank inlet device according to claim 11 is characterized in that, described block piece is a detouchable.
13. fuel tank inlet device according to claim 11 is characterized in that, block piece can elastic deformation.
14. fuel tank inlet device according to claim 11 is characterized in that, described block piece is near the outside face of sidewall, and is installed in the groove in the described sidewall outside face.
15. fuel tank inlet device according to claim 11 is characterized in that, block piece is arc.
16. fuel tank inlet device according to claim 1 is characterized in that, when in primary importance, each fastener all nestles up the inside face of fuel tank or filler neck.
17. according to claim 1 or 16 described fuel tank inlet devices, it is characterized in that, fastener zone in the described device has the inner chamber that can receive fuel oil from the mouth of pipe, described fastener protrudes from this device when primary importance, and described fastener is withdrawn in the described device at least in part when the second place.
18. fuel tank inlet device according to claim 1 is characterized in that, each fastener all be elongation and contain the structure that can insert for instrument.
19. fuel tank inlet device according to claim 17 is characterized in that, described fastener can touch from the inside of device, so that move this fastener between the primary importance and the second place.
20. fuel tank inlet device according to claim 1 is characterized in that, each fastener all is provided with screw thread with auxiliary its moving between from the primary importance to the second place.
21. fuel tank inlet device according to claim 1 is characterized in that, described one or more block piece is frangible or deformation easily takes place.
22. fuel tank inlet device according to claim 1 is characterized in that, wherein cooperates with all fastener with single block piece.
23. fuel tank inlet device according to claim 1 is characterized in that, at least one block piece is at the device in-to-in in use.
24. fuel tank inlet device according to claim 1 is characterized in that, at least one described block piece can limit supplying the contact of the structure of instrument insertion in the described fastener.
25. fuel tank inlet device according to claim 1 is characterized in that, at least one block piece is arc.
26. fuel tank inlet device according to claim 1 is characterized in that, the outside face of at least one described block piece engages with at least one fastener, and the inside face of this block piece flushes with adjacent surface in use.
27. fuel tank inlet device according to claim 1 is characterized in that, wherein is single arc block piece, this block piece contains a part that higher partial sum is lower, and the size of the upperlimit of higher part comparison lower part is big.
28. fuel tank inlet device according to claim 1 is characterized in that, at least one described block piece is to inject main body with fuel oil or annex engages in the mode of friction fit, to prevent that this block piece is removed or is mobile at least.
29. fuel tank inlet device according to claim 1 is characterized in that, described sidewall is the column type tubular structure.
30. fuel tank inlet device according to claim 1 is characterized in that, described annex and main body are integrated molding processing.
31. fuel tank inlet device according to claim 1 is characterized in that, described delivery port also comprises a plurality of apertures of being located at described end portion.
32. one kind prevents the stolen fuel tank inlet device of liquid fuel in the fuel tank, it is characterized in that, comprising a fuel oil injection main body that is used to accept fuel oil, this fuel oil injects main body and comprises an inlet that is used to inject fuel oil, and one is used to export the delivery port of fuel oil to fuel tank;
Comprise a plurality of fasteners in the described device, each fastener can move to the second place from primary importance, to prevent that this device from being unloaded from fuel tank, this device can unload from fuel tank fastener in the time of on the second place near filler neck or fuel tank when in primary importance;
Described device also contains one or more block pieces, when fastener during in primary importance these block pieces can limit contact to fastener, to prevent the user fastener is moved to the second place from primary importance.
33. fuel tank inlet device according to claim 32 is characterized in that, wherein uses single block piece to cooperate with all fasteners.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0506854A GB2424870A (en) | 2005-04-04 | 2005-04-04 | Anti siphoning fuel tank inlet assembly |
| GB0506854.9 | 2005-04-04 | ||
| GB0508898.4 | 2005-04-29 | ||
| GB0508898A GB2424873A (en) | 2005-04-04 | 2005-04-29 | Fuel tank inlet device |
| PCT/GB2006/000500 WO2006106283A1 (en) | 2005-04-04 | 2006-02-14 | Fuel tank inlet device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101155708A CN101155708A (en) | 2008-04-02 |
| CN101155708B true CN101155708B (en) | 2011-10-19 |
Family
ID=34586701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006800109807A Expired - Fee Related CN101155708B (en) | 2005-04-04 | 2006-02-14 | Fuel tank inlet device |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20080308182A1 (en) |
| CN (1) | CN101155708B (en) |
| CA (1) | CA2648497A1 (en) |
| GB (1) | GB2424870A (en) |
| ZA (1) | ZA200709134B (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE502005005464D1 (en) | 2005-02-10 | 2008-11-06 | Gerdes Gmbh | Topless closable nozzle end for a filler neck of a tank of a motor vehicle |
| JP5180183B2 (en) * | 2006-03-28 | 2013-04-10 | ティス・リミテッド | Siphon prevention tank entrance |
| US7721772B2 (en) * | 2007-12-10 | 2010-05-25 | Embraer - Empresa Brasileira De Aeronautica S.A. | Protective devices for aircraft fuel filler ports |
| CN102036847B (en) * | 2008-05-09 | 2014-09-03 | 杰兹有限公司 | Neck end for a filler neck |
| US20100258560A1 (en) * | 2008-06-13 | 2010-10-14 | James Hilton Parnell | Anti Siphon Ball |
| CN101708708B (en) * | 2009-11-13 | 2012-05-23 | 罗庆华 | Motor vehicle fuel burglarproof sleeve |
| DE102011120787A1 (en) * | 2011-06-29 | 2013-01-03 | Volkswagen Aktiengesellschaft | Misfuelling protection device for a filler neck of a fuel tank |
| SE1350086A1 (en) * | 2013-01-28 | 2014-02-11 | Dick Karlsson | Theft protection for fuel tank |
| CN103192697A (en) * | 2013-02-01 | 2013-07-10 | 李铁梅 | Two-type anti-theft fuel tank |
| CN103363164A (en) * | 2013-07-30 | 2013-10-23 | 天津港欧亚国际集装箱码头有限公司 | Anti-permeation air valve |
| CN103466135B (en) * | 2013-08-02 | 2015-12-09 | 无锡众创自动化科技有限公司 | Soft bag encasement case mouth introducing mechanism |
| KR101500136B1 (en) * | 2013-09-06 | 2015-03-06 | 현대자동차주식회사 | Misfuelling Prevention Device for vehicles |
| CN108790800B (en) * | 2018-06-06 | 2023-08-01 | 安达市雄励电气信号设备装置制造有限公司 | Anti-theft device for oil tank |
| WO2024025980A1 (en) * | 2022-07-27 | 2024-02-01 | Scepter Us Holding Company | Flame mitigation device for fuel container |
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2005
- 2005-04-04 GB GB0506854A patent/GB2424870A/en not_active Withdrawn
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- 2006-02-14 CN CN2006800109807A patent/CN101155708B/en not_active Expired - Fee Related
- 2006-02-14 US US11/910,704 patent/US20080308182A1/en not_active Abandoned
- 2006-02-14 CA CA002648497A patent/CA2648497A1/en not_active Abandoned
-
2007
- 2007-10-23 ZA ZA2007/09134A patent/ZA200709134B/en unknown
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1512065A (en) * | 1923-03-31 | 1924-10-21 | Howard C Taylor | Gasoline-tank appliance |
| US1808245A (en) * | 1928-11-12 | 1931-06-02 | John R Middleton | Antitheft device |
| US2006748A (en) * | 1932-03-26 | 1935-07-02 | Oliver C Ritz-Woller | Tank closure means |
| US4650087A (en) * | 1985-07-29 | 1987-03-17 | Yankee Wire Cloth Products, Inc. | Anti-siphoning device |
| US4630748A (en) * | 1985-08-07 | 1986-12-23 | Keller Russell D | Anti-siphon fuel filler assembly |
| US5025946A (en) * | 1990-07-29 | 1991-06-25 | Amoco Corporation | Anti-theft device for tank openings |
| EP0901926A2 (en) * | 1997-09-11 | 1999-03-17 | Saverio Voltattorni | Antitheft device for motor vehicle's fuel-tanks |
| CN2398130Y (en) * | 1999-11-19 | 2000-09-27 | 黄永玉 | Automatic fuel tank cover |
| CN2521078Y (en) * | 2002-02-01 | 2002-11-20 | 襄樊铁路分局襄北机务段 | Internal combustion engine fuel oil tank antitheft inlet |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2648497A1 (en) | 2006-10-12 |
| GB2424870A (en) | 2006-10-11 |
| CN101155708A (en) | 2008-04-02 |
| GB0506854D0 (en) | 2005-05-11 |
| US20080308182A1 (en) | 2008-12-18 |
| ZA200709134B (en) | 2008-11-26 |
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