CN100352686C - Shut-off device and fueling apparatus for fuel tank - Google Patents
Shut-off device and fueling apparatus for fuel tank Download PDFInfo
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- CN100352686C CN100352686C CNB200510098595XA CN200510098595A CN100352686C CN 100352686 C CN100352686 C CN 100352686C CN B200510098595X A CNB200510098595X A CN B200510098595XA CN 200510098595 A CN200510098595 A CN 200510098595A CN 100352686 C CN100352686 C CN 100352686C
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Abstract
A fuel cap easily realizes a function to warn the user that the pressure regulating valve is activated as backup means for the fuel tank pressure adjustment mechanism. The fuel cap includes a negative pressure valve that regulates the fuel tank pressure. An alarm mechanism is disposed upstream from the negative pressure valve. The alarm mechanism issues a warning that the negative pressure valve of the pressure regulating valve is activated as a backup for the fuel tank pressure adjustment mechanism by emitting sound via a whistle mechanism when air flow takes place due to the opening of the negative pressure valve.
Description
Technology neck city
The present invention relates to have as the atretic body of the pressure-regulating valve that prevents the auxiliary device that Fuel Tank damages and the fuel supply system of Fuel Tank.
Background technology
At present, be provided with pressure adjustmenting mechanism in the Fuel Tank of automobile, it is used to regulate in it presses, with the distortion that prevents Fuel Tank or damage by pressure.On the other hand, knownly in the fuel cap that the vessel port that makes Fuel Tank opens and closes, also be built-in with positive negative pressure valve (pressure-regulating valve) (for example, patent documentation 1).The positive negative pressure valve of fuel cap is provided with as auxiliary device, and it is opened under the situation of pressure adjustmenting mechanism malfunction, prevents that the internal drop of Fuel Tank is low, to prevent the damage of Fuel Tank.
But, can not be from the work of outside affirmation as the positive negative pressure valve of the fuel cap of auxiliary device.
[patent documentation 1] spy opens flat 10-278958 communique
Summary of the invention
The present invention is based on above-mentioned prior art problems and propose, its purpose is, the atretic body with following function and the fuel supply system of Fuel Tank are provided: in running order to the act as a fuel pressure-regulating valve of auxiliary device of pressure adjustmenting mechanism of case of user's circular.
The present invention who finishes in order to solve above-mentioned problem, it is characterized in that: in having, carry out on the atretic body of pressure-regulating valve of pressure regulation Fuel Tank, has circular mechanism, this circular mechanism utilization is opened the air-flow of valve generation by above-mentioned pressure-regulating valve and is worked, and it is in running order to circulate a notice of above-mentioned pressure-regulating valve thus.
In atretic body of the present invention,, prevent along with the increase of differential pressure between the interior pressure of Fuel Tank and atmosphere and the damage of the Fuel Tank that causes by utilizing pressure-regulating valve to carrying out pressure regulation in the Fuel Tank.In addition, circular mechanism is set in atretic body.Circular mechanism works by utilizing pressure-regulating valve air-flow a), and the circular pressure-regulating valve is in running order.Therefore, the driver can know that pressure-regulating valve is in running order by circular mechanism, can be installed in early stage repairing, the inspection of pressure adjustmenting mechanism on the Fuel Tank etc.
Here, so-called atretic body so long as the device of fuel passage in the locking inlet pipe, except the fuel cap of screw-type, also can be to guarantee leak tightness and the device of closing.In addition, atretic body also can be installing integratedly from the mode of inlet pipe dismounting except can dismantling from inlet pipe.
As optimal way of the present invention, pressure-regulating valve goes for positive valve and/or negative pressure valve.Use under the situation of negative pressure valve as pressure-regulating valve,, can prevent the damage of Fuel Tank especially, so preferred because when negative pressure state becomes big.
As preferred mode of the present invention, above-mentioned circular mechanism can be used as flute mechanism and constitutes, this flute mechanism utilize above-mentioned pressure-regulating valve drive valve the time air-flow and sound.In addition, utilize the stream that extraneous gas is adjusted valve from above-mentioned flute mechanism pilot pressure to be set to form parts, the air-flow that can efficiently feed pressure be adjusted valve converts acoustic energy to.As above-mentioned flute mechanism, can adopt structure with reed, this reed utilization is opened the air-flow that valve produces by above-mentioned pressure-regulating valve and is vibrated.
In addition, as another optimal way of the present invention, above-mentioned circular mechanism can constitute as follows, have: stream forms parts, it is with the extraneous gas above-mentioned pressure-regulating valve that leads, and moving body, it is configured in this stream and forms in the parts, can move to the circular position from position of readiness, above-mentioned moving body flows through above-mentioned stream and forms the interior air-flow of parts when utilizing above-mentioned pressure-regulating valve to drive valve, move to above-mentioned circular position from above-mentioned position of readiness, can check the situation that moves to above-mentioned circular position from the outside simultaneously.Mode can be checked moving body from the outside thus, thereby it is in running order to discern pressure-regulating valve reliably.In this structure, can on the outer wall of atretic body, form display window, this display window can be discerned above-mentioned moving body and be on the above-mentioned circular position.
Optimal way as above-mentioned circular mechanism can adopt following structure: have registration device, when it moves to above-mentioned circular position at above-mentioned moving body, be located on this circular position.By this structure, can be accompanied by the circular action that moving body moves reliably.And in this structure, above-mentioned circular mechanism can adopt following structure: have the spring of above-mentioned moving body to the position of readiness pretension, in the predetermincd tension of above-mentioned moving body antagonistic spring and when moving to above-mentioned circular position, be located on this circular position.
As another optimal way of above-mentioned circular mechanism, can adopt following structure, have and filled the filled chamber that shows with fluid, above-mentioned moving body has valve portion, it makes above-mentioned demonstration flow out from above-mentioned filled chamber with fluid when moving to above-mentioned circular position from above-mentioned position of readiness.Drivers etc. can show and to use fluid, know to have or not circular by being checked by display window when pressure valve is driven valve.In this structure, can adopt following structure, above-mentioned moving body moves to have: valve portion, it makes above-mentioned demonstration flow out from above-mentioned filled chamber with fluid when moving to above-mentioned circular position from above-mentioned position of readiness; And pressure-bearing portion, itself and this valve portion integrally moves, and bears the differential pressure that is produced by air-flow, and this air-flow is driven valve by above-mentioned pressure-regulating valve and is produced, and can move reliably by distinguishing its effect.
Another optimal way as above-mentioned circular mechanism can adopt following structure, has: moving body, and its utilization is opened the air-flow that valve produces by above-mentioned negative pressure valve, perhaps opens the air-flow that valve produces by positive valve, moves to different directions; The 1st circular face, it shows that this moving body is in not mobile status; The 2nd circular face, it utilizes this moving body to move and shows and is in negative pressure state; And the 3rd circular face, its demonstration is in barotropic state.Thus, can carry out the circular of negative pressure state and barotropic state two aspects by a moving body.
As another optimal way of above-mentioned circular mechanism, can adopt following structure, have: moving body, it utilizes the air-flow of pressure-regulating valve and moves; Switch, it utilizes moving and conducting/disconnection of this moving body; And electroluminescent lamp, it utilizes the conducting of this switch and turns on light.As mentioned above, circular mechanism also can realize by electronic display.
In addition, as other optimal way of the present invention, the priming device of Fuel Tank has: inlet pipe, and it has the fuel passage to the Fuel Tank fueling; And pressure-regulating valve, it is arranged in this inlet pipe, and Fuel Tank is carried out pressure regulation, it is characterized in that, have circular mechanism, this circular mechanism utilizes by above-mentioned pressure-regulating valve and opens the air-flow that valve produces and work, and it is in running order to circulate a notice of above-mentioned pressure-regulating valve thus.As mentioned above, in the priming device that circular mechanism also goes for being provided with the atretic body split.
As preferred structure of the present invention, can adopt following structure, have the open end that is arranged on above-mentioned inlet pipe, the locking mechanism that above-mentioned fuel passage is opened and closed, above-mentioned pressure-regulating valve is set to, and regulates the pressure by the fuel passage of above-mentioned locking mechanism fully enclosed Fuel Tank side.
Description of drawings
Fig. 1 is the section-drawing that expression the present invention the 1st implements the fuel cap that relates to.
Fig. 2 amplifies near the section-drawing of pressure-regulating valve.
Fig. 3 is the section-drawing that decomposition pressure is adjusted valve.
The instruction diagram of opening valve events when Fig. 4 is explanation pressure-regulating valve malleation.
The instruction diagram of opening valve events when Fig. 5 is explanation pressure-regulating valve negative pressure.
Fig. 6 is the section-drawing of the circular mechanism that relates to of expression the 2nd embodiment.
Fig. 7 is the section-drawing of the Fuel Tank that relates to of expression the 3rd embodiment.
Fig. 8 is the instruction diagram of action of the circular mechanism of explanation the 3rd embodiment.
Fig. 9 is the section-drawing of the circular mechanism that relates to of variation of expression the 3rd embodiment.
Figure 10 is the instruction diagram of action of the circular mechanism that relates to of variation of explanation the 3rd embodiment.
Figure 11 is the section-drawing of the circular mechanism that relates to of expression the 4th embodiment.
Figure 12 is the instruction diagram of the action of explanation the 4th embodiment.
Figure 13 is the section-drawing of the circular mechanism that relates to of expression the 5th embodiment.
Figure 14 is the instruction diagram of the action of explanation the 5th embodiment.
Figure 15 is the section-drawing of the circular mechanism that relates to of expression the 6th embodiment.
Figure 16 is the instruction diagram of the action of explanation the 6th embodiment.
Figure 17 is the section-drawing of the circular mechanism that relates to of expression the 7th embodiment.
The instruction diagram of action when Figure 18 is the negative pressure of explanation the 7th embodiment.
The instruction diagram of action when Figure 19 is the malleation of explanation the 7th embodiment.
Figure 20 is the section-drawing of the circular mechanism that relates to of expression the 8th embodiment.
Figure 21 is the section-drawing of the fuel tanks of automobile oiling device that relates to of expression the 9th embodiment.
Figure 22 is the instruction diagram of explanation oiling action.
Figure 23 is the instruction diagram of explanation circular mechanism.
Figure 24 is the section-drawing of the oiling device of the fuel tanks of automobile that relates to of expression the 10th embodiment.
The specific embodiment
A. the 1st embodiment
(1) brief configuration of fuel cap (atretic body) 10
Fig. 1 is the section-drawing of the fuel cap 10 that relates to of expression the 1st embodiment of the present invention.In Fig. 1, fuel cap 10 is installed on the pressure inlet FN, and this pressure inlet FN has the inlet FNa (vessel port) of postcombustion in not shown Fuel Tank, and fuel cap 10 has: lid main body 20, and it is made by synthetic resin materials such as polyacetal; Lid 40, the top that it is installed in this lid main body 20 has the operating portion of being made by synthetic resin materials such as nylon; Spring support member 30, the upper opening of its closing cap main body 20 and form valve chamber 25; Pressure-regulating valve 50, it is accommodated in the valve chamber 25; Torque mechanism 80; Circular mechanism 90; And packing seal GS, it is installed on the upper periphery of covering main body 20, makes between itself and the pressure inlet FN to seal.Pressure-regulating valve 50 is made of positive valve 60 and negative pressure valve 70, and the pressure in the fuel metering case makes it in specialized range.Circular mechanism 90 is the mechanisms that are used for circulating a notice of to the user mode of operation of negative pressure valve 70.
Above-mentioned lid main body 20 has: outer tube body 20a roughly cylindraceous, and it has the lid side engagement section 21 that engages with the interior perimembranous of pressure inlet FN; And valve chamber organizator 20b, its bottom from outer tube body 20a is provided with to top, constitutes above-mentioned valve chamber 25.The top of this valve chamber organizator 20b and outer tube body 20a forms above-mentioned valve chamber 25 by being installed in spring support member 30 coverings of covering main body 20 tops.
Packing seal GS is loaded on the lower surface of the flange part 22 that covers main body 20 tops outward.Packing seal GS between the inlet FNa of the sealing maintaining part 24 of flange part 22 and pressure inlet FN, when making fuel cap 10 embed in the inlet FNa, compression seal maintaining part 24 and play sealing function.At this moment, the operator can feel " noise made in coughing or vomiting warbling of the oriole " sound, thereby confirm to close more than or equal to the regulation rotary torque when closing the action of fuel cap 10 by torque mechanism 80 when surpassing the driving torque of regulation.
(2) structure of pressure-regulating valve 50
Fig. 2 is near the section-drawing the amplification pressure-regulating valve 50.Pressure-regulating valve 50 is made of positive valve 60 and negative pressure valve 70.Positive valve 60 is disposed among the last chamber 25a of valve chamber 25, and negative pressure valve 70 is configured in down among the 25b of chamber.Between last chamber 25a and following chamber 25b, partly form the 1st support 20f from the inboard bevelled of valve chamber organizator 20b, form the 1st valve stream 25d towards the 1st support 20f.The 1st valve stream 25d is communicated with the intercommunicating pore 25c that is formed at bottom 20d, and intercommunicating pore 25c is connected with Fuel Tank by not shown filling tube in addition.
(2)-1 the structure of positive valve 60
Fig. 3 is the section-drawing that decomposition pressure is adjusted valve 50.Malleation valve body 61 has the discoideus positive valve main body 62 that is formed by Viton etc., is formed for bringing into play the through hole or the projection of valve function on this positive valve main body 62.That is, on positive valve main body 62, form by being bearing in the 1st support 20f and go up the seat portion 63a that closes the 1st valve stream 25d.This seat portion 63a forms annular recessed portion 63b by the periphery upper surface from positive valve main body 62 and becomes thin-walled, in the time of on being bearing in the 1st support 20f, thereby is the crooked leak tightness that improves of veiny.In addition, at the central part of above-mentioned positive valve main body 62, run through forming and the 1st valve stream 25d bonded assembly the 2nd valve stream 63c.And, on the position of the 2nd valve stream 63c, form the 2nd support 63d at the lower surface of positive valve main body 62.The 2nd support 63d as described later, plays the effect as the areal of support of negative pressure valve 70.Interior all sides of annular recessed portion 63b form endless groove 63e on the lower surface of positive valve main body 62.This endless groove 63e is when malleation valve body 61 is closed, and is used to make it to be easy to crooked groove.
In addition, on the central portion of malleation valve body 61,, barrel-contoured fitting portion 63f is set vertically to surround the mode of the 2nd valve stream 63c.At the sidepiece of fitting portion 63f, form side supports recess 63g, go into by intercalation among the embedded hole 65a of valve holding member 65, malleation valve body 61 is installed on the valve holding member 65.Upper surface at valve holding member 65 forms spring support portion 65b, and this spring support portion 65b supports an end of the 1st spring 68.The 1st spring 68 supports its other end by the support portion 30a with spring support member 30, is erected between spring support portion 65b and the spring support member 30.In addition, on valve holding member 65, the outstanding cylindrical shell 65c that is provided with, this cylindrical shell 65c forms and the 2nd valve stream 63c bonded assembly stream 65d.
(2)-2 the structure of negative pressure valve 70
As shown in Figure 2, negative pressure valve 70 possesses: negative pressure valve body 71, and it is formed from a resin; And the 2nd spring 78, it is erected between negative pressure valve body 71 and the bottom 20d, to negative pressure valve body 71 pretensions.
As shown in Figure 3, negative pressure valve body 71 has the negative pressure valve main body 72 of cup-shape, this negative pressure valve body 72 forms by upper wall board 72a with from the outstanding side wall portion 72b cylindraceous that is provided with of the peripheral part of this upper wall board 72a, and the protuberance of valve function etc. is played in formation on this negative pressure valve body 72.That is, the seat portion 73a on the upper wall board 72a of negative pressure valve main body 72 forms circular chevron shape, and it closes the 2nd valve stream 63c by on the 2nd support 63d that is bearing in malleation valve body 61.In addition, on the top of side wall portion 72b,, form annular convex 73c in the face of on the position of above-mentioned the 1st valve stream 25d.This annular convex 73c constitutes restriction, this restriction is closed under the valve state at negative pressure valve body 71, the flow path area of above-mentioned the 1st valve stream 25d is reduced, along with malleation valve body 61 is driven valve, under the state that above-mentioned negative pressure valve body 71 and this malleation valve body 61 move integratedly, the flow path area of the 1st valve stream 25d is increased.
(3) action of pressure-regulating valve 50
In said structure, the pressure regulation in the Fuel Tank that is undertaken by positive valve 60 is undertaken by following action.Promptly, under the state that fuel cap shown in Figure 1 10 is installed on the pressure inlet FN, when the pressure in the Fuel Tank is when surpassing the malleation of the 1st force value, the state that then tends to Fig. 4, promptly, resist the predetermincd tension of the 1st spring 68 and malleation valve body 61 and valve holding member 65 are risen, the gap of the periphery of Fuel Tank inner intercommunicating pore 25c, the 1st valve stream 25d, malleation valve body 61 and the breather hole of spring support member 30 etc. through filling tube, bottom 20d, be communicated with extraneous gas, the direction of the barotropic state in eliminating Fuel Tank shifts.By being communicated with, when applying the differential pressure that is on the positive valve body 61, as shown in Figure 2, utilizing the predetermincd tension of the 1st spring 68 that malleation valve body 61 is descended and close valve less than the predetermincd tension of the 1st spring 68 with extraneous gas.Like this, open and close malleation valve body 61 so that the pressure in the Fuel Tank is no more than the 1st force value.
On the other hand, when being negative pressure less than the 2nd force value in the Fuel Tank, as shown in Figure 5, and the predetermincd tension of negative pressure valve body 71 opposings the 2nd spring 78 and moving downwards, negative pressure valve body 71 separates with the 2nd support 63d of malleation valve body 61.At this moment, because malleation valve body 61 is bearing on the 1st support 20f and keeps this state, so between negative pressure valve body 71 and malleation valve body 61, form path.Thus, stream 65d, the 2nd valve stream 63c in the path of process circular described later mechanism 90, the cylindrical shell 65c of valve holding member 65, the intercommunicating pore 25c of the 1st valve stream 25d, bottom 20d, Fuel Tank is communicated with atmosphere, and the direction of the negative pressure state in eliminating Fuel Tank shifts.Differential pressure on putting on negative pressure valve body 71 is during less than the predetermincd tension of the 2nd spring 78, and negative pressure valve body 71 is closed.
(4) circular mechanism 90
In Fig. 2, circular mechanism 90 is the air-flow when utilizing negative pressure valve 70 to open and close and the flute mechanism that sounds, along the axle center on the top of fuel cap 10, and in the upstream side setting of negative pressure valve 70.Circular mechanism 90 has: stream forms parts 91, and it is configured in the central portion of fuel cap 10; And flute mechanism 95, it is arranged on the sidepiece that this stream forms parts 91 integratedly.
As shown in Figure 3, it is the cylindrical shells with stream 91a that stream forms structure portion 91, and its top is by closure 91b sealing, and the bottom becomes the expansion section 91c that enlarges stream 91a, utilizes this expansion section 91c to be connected with the top of the cylindrical shell 65c of valve holding member 65.Flute mechanism 95 has air flow circuit 95c, its from air suctiton inlet 95a by being formed at stream and forming the air extractor duct 95b on the parts 91 and being connected with stream 91a.Form sympathetic response restriction 95d in this air flow circuit 95c, it carries out throttling to the flow that leads to air extractor duct 95b, and the inboard of sympathetic response restriction 95d becomes resonant chamber 95e.
Action to circular mechanism 90 describes below.As shown in Figure 5, when in the Fuel Tank when driving valve less than the negative pressure of the 2nd force value, extraneous gas from the air suctiton inlet 95a of circular mechanism 90 by air flow circuit 95c, at sympathetic response restriction 95d by throttling, enter stream 91a from air extractor duct 95b again, also flow to resonant chamber 95e simultaneously.In addition, extraneous gas enters in the Fuel Tank through stream 65d, negative pressure valve 70 from stream 91a.At this moment, circular mechanism 90 utilizes the sympathetic response restriction to improve flow velocity, and the sympathetic response effect of the air by flowing into resonant chamber 95e is sounded.
Thereby because the user can be when negative pressure valve 70 work, the sound that utilizes circular mechanism 90 to send knows that the pressure-regulating valve 50 of auxiliary device of pressure adjustmenting mechanism of the case that acts as a fuel is in running order, so can carry out early stage repairing, inspection.
In addition,,, can not need distribution so compare with the situation of using electronic sensor because circular mechanism 90 utilizes the air-flow of negative pressure valve 70 and works, thus simple in structure.
B. the 2nd embodiment
Fig. 6 is the section-drawing of the circular mechanism 100 that relates to of expression the 2nd embodiment.This embodiment is the variation of the 1st embodiment, it is characterized in that, its structure is to use the reed that utilizes air-flow and vibrate as flute mechanism 105.Form stream 101a in stream forms parts 101, this stream 101a forms resonant chamber.Form at stream on the sidewall of parts 101, form and make outside and stream 101a bonded assembly air suctiton inlet 101b.In addition, an end of reed 102 is welded on the open end of air suctiton inlet 101b.That is, reed 102, its lower end 102a is welded on the open end of air suctiton inlet 101b, and vibration section 102b covers air suctiton inlet 101b with half-open state.By the foregoing description, when in the Fuel Tank when driving valve less than the negative pressure of the 2nd force value, extraneous gas enters in the stream 101a by the gap of reed 102 with air suctiton inlet 101b.At this moment, utilize the vibration of reed 102 and the sympathetic response that causes by the resonant chamber that forms stream 101a and sounding, can circulate a notice of the user thus.
C. the 3rd embodiment
Fig. 7 and Fig. 8 are the section-drawings of the fuel cap that relates to of expression the 3rd embodiment, and Fig. 7 is that negative pressure valve 70 is not when working, when Fig. 8 is negative pressure valve work.The circular mechanism 120 of present embodiment is characterised in that its structure is that negative pressure state is visually circulated a notice of the user.Circular mechanism 120 has stream and forms parts 121 and moving body 125.It is cylindrical shells that the bottom enlarges that stream forms parts 121, has stream 122.Stream 122 has central primary flow path 122a, and the sidepiece stream 122b that forms at the outer circumferential side of primary flow path 122a bottom.The inwall that sidepiece stream 122b forms parts 121 from stream is along direction of principal axis, and the stream that is formed at a plurality of outstanding settings forms between the rib 123.The wall on the top of primary flow path 122a and stream form rib 123, become to be used for the guide portion of moving body 125 at axial lead.In addition, the lower end that forms rib 123 at stream forms card not-go-end 123a, and this card not-go-end 123a is used to limit moving of moving body 125.
Above-mentioned moving body 125 is cylindrical shapes, is supported by primary flow path 122a in a movable manner, and the bottom forms cone shape.The top of moving body 125 becomes display part 128.At the central portion of the lid 40B relative, be provided with the display window 129 that is installed in that lid 40B goes up and covers with transparent resin with this display part 128.The user is by display window 129, and the display part 128 that can check moving body 125 is the position of readiness at Fig. 7, still is in the circular position of Fig. 8.
In addition, moving body 125 is supported on the top of primary flow path 122a when the position of readiness of Fig. 7, as this bracing or strutting arrangement, be provided with: elastic stop plate 124, and it is formed at stream and forms on the parts 121; And block and end recess 126, it is formed on the peripheral part of moving body 125, and engages with elastic stop plate 124.That is, elastic stop plate 124 is formed by cantilever beam, forms card claw stop 124a in the end, by this card claw stop 124a and card only recess 126 engage, moving body 125 is remained on the position of readiness of primary flow path 122a.
Action to circular mechanism 120 describes below.When in the Fuel Tank when driving valve less than the negative pressure of the 2nd force value, produce difference of pressure in the upper and lower surface of moving body 125, moving body 125 is applied downwards power.The card claw stop 124a of moving body 125 by elastic stop plate 124 is fastened on card to be ended on the recess 126 and remaining on the position of readiness, if but the power downwards that moving body 125 applies is increased, then elastic stop plate 124 utilizes elastic deformation and ends recess 126 disengagings with card, and moving body 125 moves downwards.And moving body 125 stops (state of Fig. 8) by end in contact card not-go-end 123a under it.At this moment, extraneous gas, enters in the Fuel Tank via stream 65d, negative pressure valve 70 by sidepiece stream 122b from primary flow path 122a again.
When as shown in Figure 7, when moving body 125 is in position of readiness, the display part 128 of moving body 125 is in the face of display window 129, it shows that expression negative pressure valve 70 is in off working state, but ought be as shown in Figure 8, when moving body 125 moves to the circular position, because display part 128 away from display window 129, becomes mode of operation so know negative pressure valve 70.Therefore, because the user is when fuel cap opens and closes when oiling etc.,, can know that the negative pressure valve 70 of auxiliary device of the pressure adjustmenting mechanism of the case that acts as a fuel is mode of operation, so can carry out early stage repairing, inspection by checking the state of display window 129.
In addition, in case because moving body 125 moves to when circulating a notice of the position, can rest on this position, so circular mechanism 120 can circulate a notice of the essentiality that pressure adjustmenting mechanism is checked reliably.
Fig. 9 and Figure 10 are the section-drawings of the circular mechanism 130 that relates to of the variation of the 3rd embodiment of presentation graphs 7, and Fig. 9 is that negative pressure valve is not when working, when Figure 10 is negative pressure valve work.This variation is characterised in that, has to be used for moving body 135 cards are ended at stream to form structure on the parts 131.At the peripheral part of moving body 135, be provided with the elastic stop plate 136 that the end has card claw stop 136a.Card claw stop 136a is formed at stream and forms on the stop hole 131a on the parts 131 by being fastened on, and makes moving body 135 remain on position of readiness.In addition, in the bottom of stream formation rib 133, the engaging recessed part 133a that engages with card claw stop 136a when being formed on the circular position.Like this, the registration device that moving body 135 is supported on the stream formation parts 131 can be taked various mechanisms.
D. the 4th embodiment
Figure 11 and Figure 12 are the section-drawings of the circular mechanism 140 that relates to of expression the 4th embodiment, and Figure 11 is that negative pressure valve is not when working, when Figure 12 is negative pressure valve work.Present embodiment is characterised in that its structure is to use valve system as circular mechanism.Circular mechanism 140 has: stream forms parts 141, and it has and negative pressure valve bonded assembly stream 142; Moving body 145, it is configured in the stream 142; And spring 146, it is to moving body 145 pretensions.Moving body 145 has the elastic stop plate 145b that goes up facial 145a and form from the peripheral part of last facial 145a downwards.The generation type of elastic stop plate 145b is, is directed groove 141b guiding, and 141e engages with connecting hole.Moving body 145 utilizes the spring 146 that supported by spring support portion 141c pretension upward, and the upper surface of going up facial 145a is relative with the lower surface of display window 149.
In above-mentioned circular mechanism 140, when valve left by negative pressure valve when becoming negative pressure state in the Fuel Tank, extraneous gas flows into by stream 142 from intercommunicating pore 141a, the gap of moving body 145 peripheries, intercommunicating pore 141d, thus, the upper and lower surface of facial 145a produces difference of pressure on moving body 145, and moving body 145 is applied downwards power.Moving body 145 utilizes the predetermincd tension of spring 146 and remains on position of readiness, if but put on the predetermincd tension of the power downwards of moving body 145 greater than spring 146, then move downwards.And moving body 145 is fastened on connecting hole 141e by elastic stop plate 145b and upward stops (state of Figure 12).Thus, because the upper surface of moving body 145 away from display window 149, so the demonstration of display window 149 changes, can confirm that negative pressure valve is in running order.By this embodiment, because moving body 145 utilizes spring 146 by pretension, so can carry out reliably from the off working state of moving body 145 change action to mode of operation.
E. the 5th embodiment
Figure 13 and Figure 14 are the section-drawings of the circular mechanism that relates to of expression the 5th embodiment, and Figure 13 is that negative pressure valve is not when working, when Figure 14 is negative pressure valve work.Present embodiment is characterised in that its structure is to circulate a notice of the circular of mechanism 150 by flowing out of fluid.Circular mechanism 150 has: filled chamber 153, and it is configured in the top that stream forms parts 151, has filled to show with fluid 154; As the moving body 155 of valve body, it opens and closes the outflow road 153a of these filled chamber 153 bottoms; And spring 156, it is to moving body 155 pretension upward.Can use painted liquid or coccoid as showing with fluid 154.
In circular mechanism 150, when valve left by negative pressure valve when becoming negative pressure state in the Fuel Tank, air-flow flowed into by stream 152 from access 151b, and air-flow flows into by stream 152 from the restriction 155b of access 151a via the peripheral part of moving body 155 simultaneously.Thus, based on the difference of pressure that is applied on the moving body 155, moving body 155 is subjected to downwards the power that moves, the spring force of antagonistic spring 156 and moving, and seat portion 155a leaves sealing 151c, and outflow road 153a opens.Thus, flow out to stream 152 from 153a with fluid 154 by the demonstration in the filled chamber 153, the demonstration of display window 159 changes.
F. the 6th embodiment
Figure 15 and Figure 16 are the section-drawings of the circular mechanism 160 that relates to of expression the 6th embodiment.Present embodiment is the variation of the 5th embodiment, it is characterized in that the structure of moving body 165.That is, moving body 165 is 2 grades of valve constitutions by connecting rod 165c connection valve 165a of portion and the 165b of pressure-bearing portion, the spring 166 pretension valve 165a of portion, and the 165b of pressure-bearing portion is by spring 167 pretensions.Formation seat portion 165d on the 165a of valve portion shows with the fluid 164 of the demonstration in the fluid 164, the difference of pressure of the air-flow the when 165b of pressure-bearing portion bears negative pressure with sealing.
In circular mechanism 160, when valve left by negative pressure valve when becoming negative pressure state in the Fuel Tank, air-flow forms parts 161 from stream access 161a flows into by stream 162, and air communication is crossed gap, stream 162 inflows of the peripheral part of access 161b, connecting rod 165c simultaneously.Thus, based on the difference of pressure that is applied on the 165b of pressure-bearing portion, the spring force of moving body 165 antagonistic springs 166,167 and moving flows out road 163a and opens.Thus, flow out to stream 162 with fluid 164 by the demonstration in the filled chamber 163, the demonstration of display window 169 changes.
G. the 7th embodiment
Figure 17 to Figure 19 is the section-drawing of the circular mechanism 170 that relates to of expression the 7th embodiment, and Figure 17 is that pressure-regulating valve is not when working, when Figure 18 is negative pressure valve work, when Figure 19 is positive valve work.Present embodiment is characterised in that, during for negative pressure valve work not only, and the structure of also circulating a notice of during positive valve work.Circular mechanism 170 has: stream forms parts 171, and it is connected with the valve stream of pressure-regulating valve; Valve host body 173, it has valve chamber 173a; And moving body 175, it slidably is contained in the valve chamber 173a.The intercommunicating pore 172a of the lower central of path 172 by being formed at valve host body 173 connects.Valve host body 173 has diapire 173b and sidewall 173c, forms valve chamber 173a jointly with the upper surface of lid.Valve chamber 173a is connected with outside by intercommunicating pore 173d and the intercommunicating pore 173e that is formed on the valve host body 173.Moving body 175 by last facial 176 and sidewall 177 constitute.Last facial 176 have central authorities the 1st circular face 176a, the 2nd circular face 176b and the 3rd circular face 176c of depression a little, and the generation type of these circular faces is, and is relative with thin slice 179a with the demonstration that sticks on corresponding to the position of moving body 175 on the display window 179.When demonstration is relative with the 1st circular face with thin slice 179a, because be separated with the gap, so can utilize the Transparent color of diffuser reflection identification display window 179, when relative with the 2nd circular face 176b or the 3rd circular face 176c, because be close to respectively on the 2nd circular face 176b or the 3rd circular face 176c, so can recognize their color.In addition, on the sidewall 177 of moving body 175, form intercommunicating pore 177a,, make between the outside and the valve chamber 173a and produce air-flow by this intercommunicating pore 177a.
In circular mechanism 170, when valve left by negative pressure valve when becoming negative pressure state in the Fuel Tank, as shown in figure 18, air communication is crossed intercommunicating pore 173d, valve chamber 173a, intercommunicating pore 172a, path 172 from the extraneous gas inflow, and air-flow also flows to path 172 by access 171a simultaneously.Thus, moving body 175 is applied in the power that moves left to graphic based on its difference of pressure, moves as shown in figure 18, and the 2nd circular face 176b is in the face of display window 179.Thus, it is in running order to circulate a notice of negative pressure valve.On the other hand, when valve left by positive valve when becoming barotropic state in the Fuel Tank, as shown in figure 19, air-flow flowed into by intercommunicating pore 172a, intercommunicating pore 177a, intercommunicating pore 173d from path 172, and air communication is crossed path 171a inflow simultaneously.Thus, moving body 175 is applied in the power that moves right to graphic based on its difference of pressure, moves as shown in figure 19, and the 3rd circular face 176c is in the face of display window 179.Thus, it is in running order to circulate a notice of positive valve.Can utilize 1 moving body 175 to show positive valve and negative pressure valve two sides' action like this.
H. the 8th embodiment
Figure 20 is the section-drawing of the circular mechanism that relates to of expression the 8th embodiment.The 8th embodiment is characterised in that to have the structure of utilizing electronic display and circulating a notice of.Circular mechanism 180 has: switch 183, and it utilizes stream to form the work of negative pressure valve in the parts and closure; And electroluminescent lamp 188, it utilizes the closed action of switch 183 and turns on light.Switch 183 has moving body 185, spring 187, movable contact 186a, fixed contact 186b.Moving body 185 has: mobile agent 185a, and it bears the predetermincd tension of spring 187; And go up facial 185c, it is connected the central authorities top of mobile agent 185a by connecting rod 185b.The lower surface of the 185c of portion is installed movable contact 186a in the above.In addition, with movable contact 186a interval predetermined distance, fixed contact 186b is fixed on from stream and forms on the upper surface of the outstanding fixedly salient 181b that is provided with of parts 181 inwalls.
In circular mechanism 180, when valve left by negative pressure valve when becoming negative pressure state in the Fuel Tank, air-flow forms parts 181 from stream access 181a is through stream 182 and flow into, and the air communication of extraneous gas is crossed the gap, stream 182 of the peripheral part of connecting rod 185b and flowed into simultaneously.Thus, based on the difference of pressure on the mobile agent 185a that is applied to moving body 185, the spring force of antagonistic spring 187 and moving, moving body 185 moves down.Utilize moving of moving body 185, movable contact 186a is connected with fixed contact 186b, and not shown switch circuit work is turned on light electroluminescent lamp 188.Thus, by display window 189, demonstration changes.
I. the 9th embodiment
(1) brief configuration of oiling device and on-off action
Figure 21 to Figure 23 represents to have the oiling device of the Fuel Tank of the circular mechanism that the 9th embodiment relates to.Present embodiment is applicable to fuel cap is unloaded and the oiling device of oiling from oiling tube, carries the circular mechanism 280 of the error state of circular pressure-regulating valve 270.Oiling device has: inlet pipe 210, and it is made of body 212 and passage forming body 220, and this passage forming body 220 is configured in the body 212, forms fuel passage 220P; The 1st locking mechanism 230, it opens and closes the inlet 220a that is formed at passage forming body 220 tops; And the 2nd locking mechanism 240, it opens and closes sealed open 220b, and sealing opening 220b makes in the passage forming body part of fuel passage 220P narrow down to form.Above-mentioned oiling device utilizes the 1st locking mechanism 230 and the 2nd locking mechanism 240 to open each opening, by the grease compressor grease oiling.Below, the structure of each several part is described.
The 1st locking mechanism 230 has: the 1st atretic body 231, and it is supported in the mode that can rotate on the top of outer tube body 221; And the 1st spring 234, its to the 1st atretic body 231 to the direction pretension of opening.Form anchor clamps 235 on the other end of the 1st atretic body 231, the predetermincd tension that it is used to resist to opening on the 1st spring 234 directions keeps the blocking of the 1st atretic body 231.In the bottom of the 1st atretic body 231 packing seal GS1 is installed.
The 2nd locking mechanism 240 is normally closed gates, and it is configured in the Fuel Tank side of the 1st locking mechanism 230 in the fuel passage, and its constituted mode is when pushing with grease compressor grease, to open sealed open 220b.The 2nd locking mechanism 240 has the 2nd atretic body 241, pivot shaft 242, installing component 243 and the 2nd spring 244.That is, the constituted mode of the 2nd atretic body 241 is, being supported on the installing component 243 by the mode that pivot shaft 242 freely rotates, utilizes the predetermincd tension of the 2nd spring 244, closes the sealed open 220b of passage forming body 220.Peripheral part at above-mentioned the 2nd atretic body 241 is equipped with packing seal GS2.
Below, the on-off action of oiling device is described.As shown in figure 21,, the handle 235c of anchor clamps 235 is pressed downwards, arm 235a is rotated from the 1st locking mechanism 230 closing state.Thus, as shown in figure 22, engaging pawl 235d leaves and is stuck pawl 229, and by the predetermincd tension of the 1st spring 234, the 1st locking mechanism 230 rotates, and opens pouring orifice 220a.Then, as shown in figure 22, grease compressor grease FG by pouring orifice 220a, is inserted among the fuel passage 220P, the end of grease compressor grease FG is inserted into sealed open 220b, use the upper surface of ends urged the 2nd atretic body 241 of grease compressor grease FG again.Thus, the predetermincd tension of the 2nd atretic body 241 opposings the 2nd spring 244 is that rotate at the center with pivot shaft 242, opens sealed open 220b.Insert grease compressor grease again, with fuel from grease compressor grease by the fuel passage 210a in the vessel side path 220Pb, inlet pipe 210, supply with to Fuel Tank.When oiling finished, if extract grease compressor grease, then the 2nd atretic body 241 utilized the predetermincd tension of the 2nd spring 244 and closes sealed open 220b.Then, if apply power to closing direction on the 1st atretic body 231, making the 1st atretic body 231 is that rotate at the center with rotational pin 232, and then the engaging pawl 235d of anchor clamps 235 crosses and is stuck pawl 229 and engages, and the 1st atretic body 231 is closed inlet 220a.
(2) circular mechanism 280
In Figure 23, oiling device has: pressure-regulating valve 270, and it is installed on the sidewall of inlet pipe 210, the pressure in the fuel metering path 210a; And circular mechanism 280, the action of its circular pressure-regulating valve 270.Pressure-regulating valve 270 is tilt structures of 90 ° of settings of pressure-regulating valve 50 that the 1st embodiment is related to, except this some difference, and other structure and move identical.
That is, pressure-regulating valve 270 is made of positive valve 272 and negative pressure valve 274.Positive valve 272 is pressed relative extraneous gas in container when being malleation more than or equal to specified value, air-flow is to outside gas flow, on the other hand, negative pressure valve 274 is pressed relative extraneous gas in container when being negative pressure more than or equal to specified value, extraneous gas is led in the Fuel Tank, make it in specialized range thereby regulate to press in the container.
J. the 10th embodiment
Figure 24 is the section-drawing that expression has the Fuel Tank oiling device of the circular mechanism that the 10th embodiment relates to.This embodiment is the variation of the 9th embodiment, the configuration difference of the circular mechanism of the error state of circular pressure-regulating valve.In the passage forming body 220B of the inlet pipe 210B of oiling device, form reception room 222B.Reception room 222B has bottom compartment 222Ba and upper chambers 222Bb, and configuration has the pressure-regulating valve 270B as the negative pressure valve function in bottom compartment 222Ba, the 280B of circular mechanism of configuration and Figure 11 same general configuration in upper chambers 222Bb.By this structure, can utilize the 2nd locking mechanism 240 to adjust negative pressure in the fuel passage 210Ba of downstream sides, when pressure-regulating valve 270 work, utilize the circular 280B of mechanism circular simultaneously, check from the display window 232B of the 1st locking mechanism 230B.In addition, the foregoing description can suitably be selected by pressure-regulating valve and circular mechanism.
In addition, the invention is not restricted to the foregoing description, in the scope that does not break away from its main idea, can implement in every way.
Claims (12)
1. an atretic body has: to carrying out the pressure-regulating valve of pressure regulation in the Fuel Tank; And circular mechanism, it utilizes the air-flow that is produced by the driving valve of above-mentioned pressure-regulating valve and works, and it is in running order to circulate a notice of above-mentioned pressure-regulating valve thus,
Above-mentioned pressure-regulating valve has any in negative pressure valve and the positive valve, wherein aforementioned negative pressure valve in container, press with respect to extraneous gas for more than or equal to the regulation negative pressure the time open, aforementioned positive valve in container, press with respect to extraneous gas for more than or equal to the regulation malleation the time open
It is characterized in that the constituted mode of above-mentioned circular mechanism is to have: stream forms parts, and it is with the extraneous gas above-mentioned pressure-regulating valve that leads; And moving body, it is configured in this stream and forms in the parts, can move to the circular position from position of readiness, the air-flow that above-mentioned stream forms parts is flow through in above-mentioned moving body utilization when above-mentioned pressure-regulating valve is driven valve, move to above-mentioned circular position from above-mentioned position of readiness, can check situation about moving from the outside simultaneously to above-mentioned circular position.
2. atretic body as claimed in claim 1,
Above-mentioned circular mechanism (120) forms display window (129), and it can discern the situation that above-mentioned moving body (125) is in above-mentioned circular position.
3. atretic body as claimed in claim 2,
Above-mentioned circular mechanism (130) has registration device, when it moves to above-mentioned circular position at above-mentioned moving body (135), is located on this circular position.
4. atretic body as claimed in claim 2,
Above-mentioned circular mechanism (140) has: spring (146), its with above-mentioned moving body (145) to the position of readiness pretension; And registration device, when it moves to above-mentioned circular position at above-mentioned moving body (145), be located on this circular position.
5. atretic body as claimed in claim 2,
Above-mentioned circular mechanism (150) has has filled the filled chamber (153) that shows with fluid (154), above-mentioned moving body (155) has valve portion, it makes above-mentioned demonstration flow out from above-mentioned filled chamber (153) with fluid (154) when moving to above-mentioned circular position from above-mentioned position of readiness.
6. atretic body as claimed in claim 2,
Above-mentioned circular mechanism (160) has has filled the filled chamber (163) that shows with fluid (164), above-mentioned moving body (165) has: valve portion (165a), it makes above-mentioned demonstration flow out from above-mentioned filled chamber (153) with fluid (154) when moving to above-mentioned circular position from above-mentioned position of readiness; And pressure-bearing portion (165b), itself and this valve portion (165a) integrally moves, and bears the differential pressure that is produced by air-flow, and this air-flow is driven valve by above-mentioned pressure-regulating valve and is produced.
7. atretic body as claimed in claim 2,
The constituted mode of moving body (175) is: utilizes by above-mentioned negative pressure valve and opens the air-flow of valve generation or open the air-flow that valve produces, move to different directions by positive valve,
Above-mentioned circular mechanism (170) has: the 1st circular face (176a), and it shows that above-mentioned moving body is in not mobile status; The 2nd circular face (176b), it utilizes moving of above-mentioned moving body, shows to be in negative pressure state; And the 3rd circular face (176c), its demonstration is in barotropic state.
8. atretic body as claimed in claim 7,
Above-mentioned moving body (175) makes in the 2nd circular face (176b) or the 3rd circular face (176c) any move since the 1st circular face (176a), so that it is relative with above-mentioned display window (179).
9. atretic body as claimed in claim 1,
Above-mentioned circular mechanism (180) has: switch (183), and it utilizes moving and conducting/disconnection of described moving body (185); And electroluminescent lamp (188), it utilizes the conducting of this switch (183) and turns on light.
10. the oiling device of a Fuel Tank has: inlet pipe (210), and it has the fuel passage to the Fuel Tank fueling; And pressure-regulating valve (270), it is arranged on this inlet pipe (210), and Fuel Tank is carried out pressure regulation, and
Circular mechanism (280), it utilizes the air-flow work that is produced by the driving valve of above-mentioned pressure-regulating valve (270), and it is in running order to circulate a notice of above-mentioned pressure-regulating valve (270) thus,
Above-mentioned pressure-regulating valve (270) has any in negative pressure valve and the positive valve, wherein aforementioned negative pressure valve (274) in container, press with respect to extraneous gas for more than or equal to the regulation negative pressure the time open, aforementioned positive valve (272) in container, press with respect to extraneous gas for more than or equal to the regulation malleation the time open
It is characterized in that the constituted mode of above-mentioned circular mechanism (280) is to have: stream forms parts (281), and it is with the extraneous gas above-mentioned pressure-regulating valve (270) that leads; And moving body (285), it is configured in this stream and forms in the parts (281), can move to the circular position from position of readiness, above-mentioned moving body (285) utilizes at above-mentioned pressure-regulating valve (270) and flows through the air-flow that above-mentioned stream forms parts (281) when driving valve, move to above-mentioned circular position from above-mentioned position of readiness, can check situation about moving from the outside simultaneously to above-mentioned circular position.
11. the fuel supply system of Fuel Tank as claimed in claim 10,
Have locking mechanism, the open end that it is arranged on above-mentioned inlet pipe (210) opens and closes above-mentioned fuel passage,
Above-mentioned pressure-regulating valve (270) is set to, and regulates the pressure by the fuel passage of above-mentioned locking mechanism fully enclosed Fuel Tank side.
12. the fuel supply system of Fuel Tank as claimed in claim 10,
Above-mentioned circular mechanism (280) has: switch (283), and it utilizes moving and conducting/disconnection of described moving body (285); And electroluminescent lamp (288), it utilizes the conducting of this switch (283) and turns on light.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004260545 | 2004-09-08 | ||
| JP2004260545 | 2004-09-08 | ||
| JP2005218773 | 2005-07-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1746045A CN1746045A (en) | 2006-03-15 |
| CN100352686C true CN100352686C (en) | 2007-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200510098595XA Expired - Fee Related CN100352686C (en) | 2004-09-08 | 2005-09-06 | Shut-off device and fueling apparatus for fuel tank |
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| Country | Link |
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| CN (1) | CN100352686C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103879279A (en) * | 2014-03-20 | 2014-06-25 | 温州市永拓汽配有限公司 | Pressure balance detachable automobile fuel tank cap |
| WO2022267009A1 (en) * | 2021-06-25 | 2022-12-29 | 遂昌县睿鼎科技服务有限公司 | Fuel tank cap |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2044678U (en) * | 1988-05-21 | 1989-09-20 | 叶京伯 | Steam-leak alarm for draining valve |
| CN2204903Y (en) * | 1994-11-24 | 1995-08-09 | 段贤琪 | Automatic alarming safety valve with air whistle |
| CN2238758Y (en) * | 1995-07-13 | 1996-10-30 | 三龙产业股份有限公司 | Fuel tank cover |
| JPH10278958A (en) * | 1997-03-31 | 1998-10-20 | Toyoda Gosei Co Ltd | Fuel cap |
| CN1421360A (en) * | 2001-11-26 | 2003-06-04 | 丰田合成株式会社 | Filling oil device for fuel oil box |
| US20030136785A1 (en) * | 2002-01-22 | 2003-07-24 | Hiroyuki Hagano | Cap device |
-
2005
- 2005-09-06 CN CNB200510098595XA patent/CN100352686C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2044678U (en) * | 1988-05-21 | 1989-09-20 | 叶京伯 | Steam-leak alarm for draining valve |
| CN2204903Y (en) * | 1994-11-24 | 1995-08-09 | 段贤琪 | Automatic alarming safety valve with air whistle |
| CN2238758Y (en) * | 1995-07-13 | 1996-10-30 | 三龙产业股份有限公司 | Fuel tank cover |
| JPH10278958A (en) * | 1997-03-31 | 1998-10-20 | Toyoda Gosei Co Ltd | Fuel cap |
| CN1421360A (en) * | 2001-11-26 | 2003-06-04 | 丰田合成株式会社 | Filling oil device for fuel oil box |
| US20030136785A1 (en) * | 2002-01-22 | 2003-07-24 | Hiroyuki Hagano | Cap device |
Also Published As
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|---|---|
| CN1746045A (en) | 2006-03-15 |
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Granted publication date: 20071205 |