CN102734012A - Fuel pump installation structure and bicycle provided with same - Google Patents
Fuel pump installation structure and bicycle provided with same Download PDFInfo
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- CN102734012A CN102734012A CN2012101053647A CN201210105364A CN102734012A CN 102734012 A CN102734012 A CN 102734012A CN 2012101053647 A CN2012101053647 A CN 2012101053647A CN 201210105364 A CN201210105364 A CN 201210105364A CN 102734012 A CN102734012 A CN 102734012A
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Abstract
The invention relates to a fuel pump installation structure and a bicycle provided with the same. The fuel pump installation structure includes a fuel box which is provided with a pump inserting opening, and a fuel pump which is provided with a pump flange part, and an installation plate. A pump body of the fuel pump is arranged in the fuel box, a flange inner face of the pump flange part is arranged on an outer face of a peripheral part of the pump inserting opening, and a sealing member is arranged between the outer face and the inner face of the flange. The fuel pump is provided with a connecting member. The installation plate is arranged on the flange outer face of the pump flange part, and the installation plate is formed by a circular plate which is provided with an open part in the center. A base of the connecting member passes through the open part. The installation part is provided with multiple connecting parts which are arranged on the periphery of the installation plate and are to be connected with the fuel box. The installation plate includes a narrow part, and in the installation plate, the interval between adjacent connecting parts which are provided with the narrow parts is shorter than the interval between adjacent connecting parts which are not provided with the narrow parts. The fuel pump installation structure is especially suitable for bicycles, and other vehicles.
Description
Technical field
The cart that the present invention relates to fuel pump mounting structural and be provided with this fuel pump mounting structural relates more particularly to be used for the fuel pump mounting structural such as the fuel tank of small-sized cart carts such as (scooters) is installed or be arranged to petrolift.
Background technique
In some vehicles such as cart, for example small-sized cart (scooter-typ e motorcycle), the article storage case is arranged on the below of rider's seat.In this small-sized cart, fuel tank possibly be arranged in the rear side or foot treadle (step board) below of article storage case.For from the internal-combustion engine fueling of fuel tank, preferably, aspect layout design, petrolift is configured to be installed in the fuel tank inboard, so that petrolift and fuel tank one are turned to a unit to this small-sized cart.
The mounting structure that is used for petrolift is installed to fuel tank for existing technology; Between the outer side surface (case sealing surface) of known periphery at the fuel tank opening portion and the lip part of petrolift packing ring is set; And through using such as the mounting plate of fastening pieces such as screw from the fastening annular in top (outside) of lip part; Thus petrolift is fixed to fuel tank, shown in patent documentation 1 (japanese kokai publication hei 09-242636 communique).
In this fuel pump mounting structural, the connector element that is communicated with petrolift is configured to insert and outwards give prominence to from lip part from lip part central authorities.This connector element extends on different directions from each other to make and not to interfere with each other.
Mounting plate forms therein that centre portion has the annular in circular open (hole), so that the connector element that on different directions from each other, extends passes from mounting plate.
For example, for guaranteeing to be used to be connected to the connection length of the fuel pipe of installing towards internal-combustion engine, these two from lip part outwards outstanding and connector element that on different directions from each other, extend to the periphery of said lip part needs predetermined length at bearing of trend.Therefore, the opening portion of mounting plate needs diameter to pass from this opening portion even as big as making two connector elements, so the external diameter of mounting plate must be greater than the diameter of opening portion.
In order to ensure the area of the lip part of being pushed down by mounting plate, the diameter of lip part need be along with the increase of the diameter of mounting plate and is increased.Therefore, fuel pump mounting structural of the prior art causes the expansion of the diameter of lip part, the mounting plate of petrolift, opening portion of fuel tank etc. usually.
The expansion of these parts diameters causes the increase of total distance to be sealed, therefore for guaranteeing that the sealability between fuel tank and the lip part is not preferred.
Summary of the invention
Consider that above-mentioned situation conceived the present invention, and the diameter that the purpose of this invention is to provide opening portion, lip part and the mounting plate that can reduce fuel tank increases and guarantees the lip part of petrolift and the fuel pump mounting structural of the sealability between the fuel tank.
Another object of the present invention provides the cart that is provided with the fuel pump mounting structural with above-mentioned characteristic.
According to the present invention, can realize above-mentioned purpose and other purposes through following setting, on the one hand, fuel pump mounting structural comprises: fuel tank, it is provided with pump and inserts mouth; Petrolift, it supplies fuel to the internal-combustion engine of vehicle, and said petrolift has the pump lip part; And mounting plate, it has the external frame bigger than the external frame of said pump lip part,
Wherein, Said pump lip part has the flange inner face; Pump main body at said petrolift is arranged under the inboard state of said fuel tank; Said flange inner face is positioned over the outer side surface that said pump inserts the peripheral region of mouth, and between said outer side surface and said flange inner face, has sealing component, and said petrolift is provided with connector element; Said connector element is along outstanding and extend along said flange outer sides face from the flange outer sides face of said pump lip part with the direction in the opposite direction at said fuel tank place
Wherein, Said mounting plate is arranged in the flange outer sides face of said pump lip part; Said mounting plate is formed by the annular slab that central part is formed with opening portion; The base portion of said connector element runs through said opening portion, and said mounting plate has at a plurality of joining portion of upwards arranging in the week of said mounting plate to said fuel tank to be joined, and
Wherein, Said mounting plate comprises narrow portion; In said narrow portion; Distance between the outer periphery of said mounting plate and the peristome of said opening portion is formed narrow, and in said mounting plate, the interval that has therebetween between said narrow the adjacent said joining portion is shorter than there not being the interval between said narrow the adjacent said joining portion therebetween.
In the preferred implementation or embodiment aspect above-mentioned, expectation be that said narrow peristome is formed with the nick shaped recess.
Expectation be to be formed ultimate range across said opening portion from the length of the straight line of said narrow said narrow the position farthest of the distance to said peristome.
Narrow can be arranged in the position except that following zone in the said pump lip part: the opposed area relative with said connector element; Zone between said opposed area; The imaginary opposed area relative with the imaginary extension part of said connector element, said imaginary extension part extends on the direction opposite with the corresponding bearing of trend of said connector element; And the zone between said imaginary opposed area.
Opening portion can desirably be set for and make the connector element that is arranged on said pump lip part only can pass following A/F, and the length at said A/F place from the straight line of said narrow said narrow the position farthest of the distance to said peristome is the ultimate range across said opening portion.
That can also expect is said narrow two positions across said opening portion positioned opposite that are arranged at respectively in the said mounting plate.
What can also expect is that said connector element comprises fuel connector and the power connector that is connected to said pump main body.
Can be preferably, said fuel connector becomes in the distance apart from the main body framework of vehicle on the direction of minimum range and extends.
What can expect is that the top of said fuel connector and the top of said power connector are arranged on opposite directions.Said fuel connector can be arranged in than the position of said power connector near said internal-combustion engine.
In another aspect of this invention, a kind of cart is provided also, this cart is provided with the fuel pump mounting structural that has independent above-mentioned feature structure or have the combination of above-mentioned feature structure.
Fuel pump mounting structural according to the invention described above; Mounting plate can be constructed such that the part except forming narrow opening portion of ring flat-plate member has the width of broad, has increased the rigidity of this part thus and has produced necessary surface pressure effectively.
In addition; Part narrow of being formed with of opening portion; Have therebetween between narrow the adjacent bond portion the interval than do not have therebetween between narrow the adjacent bond portion each other short at interval, make it possible near narrow, guarantee the pressure of self-pumping lip part on the fuel tank.Therefore, can obtain sealability between the outer side surface that pump lip part and pump insert mouth along the whole periphery that pump lip part and pump insert mouthful effectively.
The pump in accordance with the present invention mounting structure; Can be under the situation of enlarged openings portion not will insert from the opening portion of the outstanding connector element of pump lip part through mounting plate; Make and prevented the expansion or the increase of pump lip part diameter thus by the diameter that need not to enlarge mounting plate and pump lip part for the zone that enlarges generation surface pressure between mounting plate and pump lip part.
In addition, according to cart of the present invention, when bunch with fuel pipe contacts with each other and when rubbing each other, can prevent that bunch and fuel pipe from damaging or twining, and also guaranteed installation capability and after sales service quality.
From the following explanation of carrying out with reference to accompanying drawing, will make essence of the present invention and other characteristics clearer.
Description of drawings
In the accompanying drawings:
Fig. 1 is a stereogram of having used the fuel tank of fuel pump mounting structural according to the embodiment of the present invention;
Fig. 2 is the sectional view of the line II-II intercepting in Fig. 1;
Fig. 3 is a decomposition section of having used the fuel tank of fuel pump mounting structural according to the embodiment of the present invention;
Fig. 4 is the planimetric map of the fuel tank related with fuel pump mounting structural according to the embodiment of the present invention;
Fig. 5 comprises Fig. 5 A and Fig. 5 B, is to be used to explain the planimetric map that how mounting plate is installed to petrolift for according to the embodiment of the present invention fuel pump mounting structural;
Fig. 6 illustrates the planimetric map of being installed to the state of petrolift for fuel pump mounting structural mounting plate according to the embodiment of the present invention;
Fig. 7 shows the major component of the fuel pump mounting structural that is applied to vehicles such as small-sized cart or the stereogram of parts;
Fig. 8 comprises Fig. 8 A and Fig. 8 B, to be used to explain the planimetric map that how mounting plate is installed to petrolift, the modified example of fuel pump mounting structural according to the embodiment of the present invention is shown; And
Fig. 9 is installed to the planimetric map of the state of petrolift so that mounting plate to be shown, and the modified example of fuel pump mounting structural according to the embodiment of the present invention is shown.
Embodiment
Hereinafter, will be referring to figs. 1 through Fig. 9 explanation fuel pump mounting structural according to the embodiment of the present invention.Shall also be noted that with reference to the diagram in the accompanying drawing or as installed to the state of vehicle, the cart that particularly standing use a technical term " on ", the similar term of D score, " right side ", " left side " and expression direction etc.
Fig. 7 illustrates the fuel pump mounting structural according to an embodiment of the invention that can be applied to small-sized cart etc.
(fuel pump mounting structural)
Shown in Fig. 1 to 3, fuel pump mounting structural be through with fuel tank 1, be installed to the petrolift 2 of fuel tank 1 and petrolift 2 supported to mounting plate 3 assembling of fuel tank 1, then mounting plate 3 be fixed to fuel tank 1 one sides and petrolift 2 be installed to the structure of fuel tank 1.
(fuel tank)
As illustrated in fig. 1 and 2, fuel tank 1 comprises nowel portion 11 and top box portion 12, and nowel portion 11 is a vessel form, and top box portion 12 is the lid form of the opening of covering nowel portion 11.Nowel lip part 11A is formed along the whole upper shed periphery of nowel portion 11 outstanding on side direction.Top box lip part 12A is formed along the whole lower periphery of top box portion 12 outstanding on side direction.
Joining portion between nowel lip part 11A and the top box lip part 12A is as being along the case lip part 13 of the edge form of the whole periphery of fuel tank 1.As shown in Figure 1, mounting hole 14 is formed at case lip part 13.In this mode of execution,, also can use resin material moulding integratedly through blow moiding method though fuel tank 1 is formed by metallic material.
As shown in Figure 1, tubular fuel is filled the appropriate location that mouth 4 is formed at top box portion 12.Lid 5 is releasably attached to fuel and fills mouth 4.As shown in Figures 2 and 3, pump inserts mouth 6 and is formed at top box portion 12.
As the pump lip part 22 of explanation after a while is positioned over the outer side surface (top) 15 that pump inserts the peripheral region of mouth 6.As shown in Figure 3, the outer side surface 15 that pump inserts mouthful 6 peripheral regions is formed and is lower than the outer circumferential face adjacent with outer side surface 15 slightly.Insert oral-lateral at the pump of outer side surface 15, sealing component contact (butt) face 17 forms through the stepped part 16 along the periphery setting of outer side surface 15 and is lower than outer side surface 15.
(petrolift)
As shown in Figures 2 and 3, petrolift 2 mainly comprises: pump main body 21, and this pump main body 21 constitutes internally-arranged type (in-t ank type) the pump unit that is equipped with pressure regulator 21A, safety relief valve 21B etc.; Pump lip part 22, this pump lip part 22 is arranged in pump main body 21 tops with disc-shape; With as power connector of a plurality of connector elements 23 and fuel connector 24, this power connector 23 and fuel connector 24 are given prominence to and are extended along the flange outer sides face from the flange outer sides face of the pump lip part 22 that is connected to the pump main body side above opposite with fuel tank 1 one sides.
In addition, as shown in Figures 2 and 3, the suction portion 25 that is used for the fuel of draws fuel case 1 is arranged at pump main body 21 belows.Suction portion 25 is provided with filter 26 in its unshowned ingress, makes fuel filtered by filter 26.Pump main body 21 is configured to have with suction portion 25 respectively is enough to pass thickness and the width that the pump that is formed at fuel tank 1 inserts mouth 6.
Be used to detect the fuel that fuel uses up and use up the intermediate portion that detection unit 27 is arranged on pump main body 21.One end of sensor (sender gauge) 28 is supported to fuel rotationally and is used up detection unit 27.The other end of sensor 28 is provided with float 29.Because float 29 is along with the motion of melt surface of fuel, fuel is used up the residual capacity that detection unit 27 can detect fuel through the detection of motion to sensor 28.Sensor 28 is closely kept along pump main body 21 rotationally, makes float 29 can insert mouth 6 via the pump of fuel tank 1 with sensor 28 and is inserted together.
The cable that is connected to power connector 23 is laid (route) uses up detection unit 27 and pump main body 21 to fuel power unit.The bunch 7 of explanation is connected to power connector 23 after a while.In pump main body 21, dispose unshowned being used for the pipe of the fuel supply that imports from suction portion 25 to fuel connector 24.
As shown in Figure 3; Be contained under fuel tank 1 state at pump main body 21, suction portion 25, float 29 etc.; Petrolift 2 is installed in the fuel tank 1, and the lower peripheral edge surface of pump lip part 22 (flange inner face) the 22A pump that is placed on top box portion 12 inserts on mouthfuls 6 the outer side surface 15.In addition, the sealing component 10 that is formed by for example resin O type ring etc. is maintained between the sealing component surface of contact 17 of lower peripheral edge surface 22A and top box portion 12 of pump lip part 22.
Shown in Fig. 5 (Fig. 5 A and Fig. 5 B), positioning salient 22B is arranged on the appropriate location of top (the flange outer sides face) of pump lip part 22.Positioning salient 22B is mounted to the locating aperture 34 (explanation after a while) of mounting plate 3 so that pump lip part 22 and mounting plate 3 are positioned.
Shown in Fig. 5 A; Narrow 32 of mounting plate 3 with recess 32A (all explanations after a while) dispose with the mode that can in the following zone of pump lip part 22 (the shadow region 22C among the figure), not overlap each other; This zone comprises: the opposed area of power connector 23 and fuel connector 24, and this opposed area is relative with fuel connector 24 with power connector 23; Zone between the opposed area of power connector 23 and fuel connector 24; The imaginary opposed area of power connector 23 and fuel connector 24, this imagination opposed area is relative with the imaginary extension part on the opposite direction of each bearing of trend of power connector 23 and fuel connector 24; And the zone between these imaginary opposed area.
In addition; In Fig. 5 B and Fig. 6; The imaginary extension part that extends in opposite direction of power connector 23 is denoted as the zone that is limited between straight line L1 and the straight line L2; And in Fig. 5 B and Fig. 6, the imaginary extension part that extends in opposite direction of fuel connector 24 is denoted as the zone that is limited between straight line L3 and the L4.
The opposed area relative with power connector 23 and fuel connector 24, and in the relative imaginary opposed area of the imaginary extension part that extends along opposite direction of power connector 23 and fuel connector 24 and be arranged between the opposed area and be arranged in each zone between the imaginary opposed area and be called as and comprise that all above-mentioned zones are projected in the zone in the zone of (flange outer sides face) above the pump lip part 22, i.e. shadow region 22C among Fig. 5 B.
As shown in Figs. 4-6; Consider the assembling performance or the precision of power connector 23 relevant and fuel connector 24, bunch 7, fuel pipe 8 etc. with pump lip part 22; Confirm the angle between the bearing of trend of power connector 23 and fuel connector 24; Just the set angle of power connector 23 and fuel connector 24 preferably is set at minimum angles.
(mounting plate)
Like Fig. 2, Fig. 3, Fig. 5 and shown in Figure 6, mounting plate 3 is the round members with the profile bigger than the profile of pump lip part 22 (configure), and the centre has circular open portion 31 therein.Mounting plate 3 is positioned on the outer side surface (top) of pump lip part 22.The connector base portion 23A of power connector 23 and the fuel discharge pipe 24A of fuel connector 24 are arranging through the mode that opening portion 31 inserts.
As illustrated in Figures 5 and 6; Be formed at for narrow 32 in the mounting plate 3 as follows: nick shaped recess 32A is formed at the part of the peristome of opening portion 31, makes that the distance between the peristome with recess 32A of outer periphery and opening portion 31 of mounting plate 3 becomes minimum.Ultimate range R across opening portion 31 is configured to through recess 32A.Particularly, have narrow 32 of recess 32A, so that the A/F between the opposite edges of opening portion 31 becomes maximum in the peristome setting of opening portion 31.
Only the A/F at the ultimate range R place of mounting plate 3 be configured to make power connector 23 and fuel connector 24 both from wherein passing.Shown in Fig. 5 B; As long as end of a connector (power connector 23) that has shorter length at bearing of trend from power connector 23 and fuel connector 24 having the minimum range D that the end of another connector (fuel connector 24) of length limits at bearing of trend and can have random lengths in power connector 23 and the fuel connector 24 is the A/F at the ultimate range R place that this minimum range D can be through opening portion 31.This means that minimum range D can be set to less than ultimate range R.Preferably, other parts (peristome) of the no recess 32A of opening portion 31 are designed to have as far as possible little diameter, with the near zone around the base portion of the fuel discharge pipe 24A of the connector base portion 23A of power connector 23 and fuel connector 24.
As stated; Allow mounting plate 3 is pressed onto near the central authorities of pump lip part 22 around the less diameter of the peristome of connector base portion 23A and fuel discharge pipe 24A, improved the structure durability of opposing thus owing to the pressure of the vibration of the bunch 7 of for example explanation after a while and fuel pipe 8 grades.
Like Fig. 5 and shown in Figure 6, circumferentially be formed at mounting plate 3 along mounting plate 3 as (5) bolt-inserting hole 33A, 33B, 33C, 33D and the 33E at the joining portion of the top box portion 12 to fuel tank 1 to be joined.
Shown in Fig. 5 A; In bolt-inserting hole 33A, 33B, 33C, 33D and 33E; Between bolt-inserting hole 33A and 33E, has recess 32A (with narrow 32); Interval P1 between bolt-inserting hole 33A and the 33E is configured to less than each P2 at interval between the adjacent bolt-inserting hole that does not have recess 32A (and narrow 32) therebetween, promptly between bolt-inserting hole 33A and the 33B, between bolt-inserting hole 33B and the 33C, between bolt-inserting hole 33C and the 33D and the interval between bolt-inserting hole 33D and the 33E.
Locating aperture 34 be formed at mounting plate 3 away from forming narrow 32 position with the position of recess 32A.As stated, locating aperture 34 is used for the location, makes the top positioning salient 22B that is arranged on pump lip part 22 be mounted in the locating aperture 34.
In fuel pump mounting structural according to this mode of execution, as shown in Figures 2 and 3, be arranged under the state in the fuel tank 1 in the pump main body 21 of petrolift 2, pump lip part 22 is engaged to pump in the top box portion 12 and inserts mouthfuls 6 periphery outer side surface 15.Simultaneously, sealing component 10 is maintained between the lower peripheral edge surface 22A of sealing component surface of contact 17 and pump lip part 22 to guarantee sealability.
Mounting plate 3 is positioned on the pump lip part 22; And the bolt-inserting hole 33A, 33B, 33C, 33D and the 33E that are formed in the mounting plate 3 are positioned with respect to each the bolt acceptance division 18 that is formed on top box portion 12, and bolt 9B is screwed into each screw thread acceptance division 18 under the situation that is provided with metal washer 9A then.
The screw thread acceptance division 18 that is formed at top box portion 12 is configured to provide and be formed on the interval layout identical distance layout of the bolt-inserting hole 33A to 33E of mounting plate 3, makes screw thread acceptance division 18 corresponding with each bolt-inserting hole 33A to 33E.
As shown in Figure 7, the bunch 7 that is connected to power connector 23 is configured in the rear of fuel tank 1, and the fuel pipe 8 that is connected to the connection nozzle 24B1 of fuel connector 24 is installed in fuel tank the place ahead.
(installation method)
Hereinafter, explanation is installed to petrolift 2 method or the mode of fuel tank 1.
As shown in Figure 3, sealing component 10 is arranged in the below of the pump lip part 22 of petrolift 2, inserts suction portion 25, sensor 28, float 29 and pump main body 21 via sealing member 10.
Shown in Fig. 5 B; In the power connector 23 and fuel connector 24 of the pump lip part 22 that is arranged at petrolift 2 with outstanding mode, an end (the connection nozzle 24B1 of joint 24B) that on bearing of trend, extends long fuel connector 24 runs through the opening portion 31 of mounting plate 3.
Thereafter; Be mounted to and ultimate range R corresponding opening with the corresponding part of minimum range D between fuel connector 24 and the power connector 23 across the opening portion 31 of mounting plate 3, with power coupler 23B, be that insert from opening portion 31 on the top of power connector 23.With this mode, fuel connector 24 can insert from opening portion 31 with power connector 23, thus mounting plate 3 is assembled to pump lip part 22.
Then, as shown in Figure 6, adjustment mounting plate 3 makes the positioning salient 22B that is arranged on the pump lip part 22 with outstanding mode be mounted in the locating aperture 34 of mounting plate 3.
After pump lip part 22 and mounting plate 3 are positioned thus, accomplish the bolt-inserting hole 33A to 33E of mounting plate 3 and be formed at the location between each bolt acceptance division 18 of top box portion 12.Between bolt-inserting hole 33A that has narrow 32 and recess 32A therebetween in the mounting plate 3 and the interval between the 33E are set to and insert mouthful less than other adjacent bolts each at interval.Similarly, the bolt acceptance division 18 that is formed at top box portion 12 is to insert the interval layout identical distance layout configurations of mouthful 33A to 33E with bolt.Thus, the bolt-inserting hole 33A to 33E in the mounting plate 3 has realized the location of pump lip part 22 in sense of rotation simultaneously with the location of bolt acceptance division 18, thus, pump main body 21 is positioned over the appropriate location in the fuel tank 1.
(being applied to the example of small-sized cart)
Fig. 7 shows the fuel tank with above-mentioned fuel pump mounting structural according to the embodiment of the present invention 1 is applied to vehicle, is the stereogram of the state of small-sized cart.
Shown in 7; Via unshowned support (bracket); By means of the bolt 42 that is inserted into mounting hole (referring to Fig. 1), the rear cabinet lip part 13 of fuel tank 1 is fixed to a pair of aftercarriage frame member 41, this aftercarriage frame member 41 alongst is arranged at the left and right sides of small-sized cart.By means of the bolt 42 of two mounting holes that insert the left and right sides, the preceding case lip part 13 of fuel tank 1 is fixed to the front portion of the crossbeam 43 of aftercarriage frame member 41, this crossbeam 43 laterally is arranged in this between the aftercarriage frame member 41.
As shown in Figure 7; In this mode of execution; The connector portion 24B of fuel connector 24 is arranged to aftercarriage frame member 41 in court and left side to have on the direction of minimum range and extends, and the fuel pipe 8 that is connected to connector portion 24B top is installed to unshowned internal-combustion engine and oil sprayer 44 forward.
This mounting structure allows fuel pipe 8 to have the shortest length, affacts the pressure of the base portion of fuel connector 24 when being reduced in Vehicular vibration thus.
If from 41 releases of aftercarriage frame member, fuel pipe 8 fluffs with fuel pipe 8, improved installation or the dismantling property of fuel pipe 8 thus with respect to fuel connector 24.On the other hand, if fuel pipe 8 is locked onto aftercarriage frame member 41, fuel pipe 8 is tightened the vibration that makes it possible to reduce fuel pipe.Set angle between fuel connector 24 and the fuel pipe 8 can be set to 90 degree to 180 degree, is preferably about 90 degree.
The bunch 7 that is connected to power connector 23 is along arranging with fuel pipe 8 opposite directions.Therefore, when small-sized cart is driven,, can prevent that also bunch 7 and fuel pipe 8 from damaging or twining, and also guarantee to install or assemble performance and after sales service quality even when bunch 7 and fuel pipe 8 contact with each other and rub each other.
(beneficial effect)
According to above-mentioned fuel pump mounting structural; Because the diameter of pump lip part 22 is confirmed by the external diameter of mounting plate 3; And mounting plate 3 need guarantee to be enough to the pump lip part 22 of petrolift 2 is pressed onto the minimum plate width of the outer side surface 15 of top box portion 12, and preferably the diameter with the opening portion 31 of mounting plate 3 is set at as much as possible little.
Then; For above-mentioned purpose; In this mode of execution, be set to ultimate range R narrow 32 of mounting plate 3 and the A/F at recess 32A position, and power connector 23 only can be through the opening portion 31 with ultimate range R with fuel connector 24 across opening portion 31.Particularly; The distance B (referring to Fig. 5 B) of the other end that at bearing of trend have the opposing party (fuel connector 24) of length of a side's (power connector 23) a end that has shorter length at bearing of trend from power connector 23 and fuel connector 24 in power connector 23 and the fuel connector 24 can adopt any distance, needs only distance B and can pass the A/F that has across the ultimate range R of opening portion 31.Therefore, ultimate range R can be set at and power connector 23 and fuel connector 24 between distance B roughly the same.
In addition,, can reduce the opening diameter of other parts that do not have recess 32A of opening portion 32, guarantee the area of contact between mounting plate 3 and the pump lip part 22 thus as much as possible because recess 32A is provided with this mode.Therefore, can prevent to enlarge the diameter of mounting plate 3 and pump lip part 22 in order to ensure the contact area between mounting plate 3 and the pump lip part 22.
In the enlarged-diameter that has prevented mounting plate 3 and pump lip part 22 as stated; The result; The part of the formation recess 32A of the opening portion 31 in the mounting plate 3 has less being used to and is received in the zone that the side of contact of top box portion 12 and pump lip part 22 upwards pressure; Making the rigidity of this part become littler than other parts, is disadvantageous for producing necessary surface pressure therefore.
In order to solve this inferior position; The present invention is constructed such that in the joining portion that engages through bolt 9B and each bolt-inserting hole 33A to 33E, and the interval P1 that is formed with interval between the adjacent bond portion of recess 32A therebetween and is between bolt-inserting hole 33A and the 33E is set to shorter than the interval P2 between the adjacent bolt-inserting hole that does not have recess 32A therebetween.
Therefore, the position that can in mounting plate 3, have narrow 32 and recess 32A firmly is pressed in sealing component 10 between pump lip part 22 and the top box portion 12, to guarantee the sealability between pump lip part 22 and top box portion 12.
In fuel pump mounting structural according to this mode of execution, narrow 32 of pump lip part 22 with recess 32A be configured to not with Fig. 5 B in shadow region 22C (zone that does not have recess) overlapping.Therefore; Even the power owing to the above-below direction of the vibration of vehicle etc. is applied to power connector 23 and fuel connector 24 as connector element; And also be applied to the bunch 7 and fuel pipe 8 that are connected to power connector 23 and fuel connector 24, also can prevent to be applied directly to and be formed with narrow 32 part with recess 32A owing to the pressure of vibration.
As a result, can prevent sealability deterioration when the vehicle operating that is provided with this fuel pump mounting structural.
(other mode of executions)
In above-mentioned disclosing; Though fuel pump mounting structural according to the embodiment of the present invention has been described; It should be noted that; Can the present invention be limited to this to the explanation of above-mentioned mode of execution and a part and the accompanying drawing of above-mentioned mode of execution, and realize or other mode of executions and the embodiment that obtain roughly the same purpose and/or effect all within the scope of the invention.In addition, also should be noted that the combination of the inventive features that scope of the present invention is not limited to be defined by the claims, but limit each expectation combination of the concrete characteristic in disclosed all characteristics.
For example; In the above-described embodiment; Though the peristome at the opening portion 31 of mounting plate 3 is provided with a recess 32A, in the modification mode of execution, can be configured to across a pair of opening opposing edge place of opening portion 31 recess 32B is set like Fig. 8 (8A, 8B) be shown in.
In above-mentioned modified example; Between adjacent bolt-inserting hole 33A that has narrow 32 and recess 32B therebetween in the mounting plate 3 and the 33F and between adjacent bolt-inserting hole 33C and the 33D each be P1 at interval, and P2 is short at interval than between the adjacent bolt-inserting hole that does not have recess 32B therebetween each.Recess 32B in this modified example can have the recessed amount littler than the recessed amount of the recess 32A of aforementioned embodiments, and this provides advantage to the excessive minimizing that prevents the contact area between mounting plate 3 and the pump lip part 32.
In the structure that a pair of recess 32B is set, can make between the adjacent bond portion that has recess 32B therebetween interval P1 more near or do not get involved each P2 at interval between the adjacent bond portion of narrow 32 and recess 32B no better than therebetween.
In addition, in this configuration, though the difference between interval P1 and the interval P2 is very little; But; If the positioning relation between each bolt acceptance division 18 of the bolt-inserting hole 33A to 33F of mounting plate 3 and top box portion 12 is inappropriate, can not clamping bolt 9B, can not obtain locating effect thus.
In addition, in the fuel pump mounting structural according to above-mentioned mode of execution, because bolt acceptance division 18 is arranged on fuel tank 1 side, thereby bolt 9B inserts to be screwed into each bolt acceptance division 18 from the top of mounting plate 3.Yet the juncture at the joining portion between fuel tank side and the mounting plate 3 is not limited to this mode.That is to say that bolt can be arranged on fuel tank 1 side with the mode that projects upwards, and can under the state of each bolt-inserting hole that inserts mounting plate 3, adopt the nut fastening structure.
In addition, in the fuel pump mounting structural according to above-mentioned mode of execution, be circle though pump lip part 22 is configured to define with mounting plate 3, the invention is not restricted to this structure, the structure that they can based on fuel case 1 forms different shape.
According to this modification mode of execution, can expect roughly the same and/or other beneficial effect.
Claims (11)
1. fuel pump mounting structural, it comprises:
Fuel tank, it is provided with pump and inserts mouth;
Petrolift, it supplies fuel to the internal-combustion engine of vehicle, and said petrolift has the pump lip part; And
Mounting plate, it has the external frame bigger than the external frame of said pump lip part,
Wherein, Said pump lip part has the flange inner face; Pump main body at said petrolift is arranged under the inboard state of said fuel tank; Said flange inner face is positioned over the outer side surface that said pump inserts the peripheral region of mouth, and between said outer side surface and said flange inner face, has sealing component, and said petrolift is provided with connector element; Said connector element is along outstanding and extend along said flange outer sides face from the flange outer sides face of said pump lip part with the direction in the opposite direction at said fuel tank place
Wherein, Said mounting plate is arranged in the flange outer sides face of said pump lip part; Said mounting plate is formed by the annular slab that central part is formed with opening portion; The base portion of said connector element runs through said opening portion, and said mounting plate has at a plurality of joining portion of upwards arranging in the week of said mounting plate to said fuel tank to be joined, and
Wherein, Said mounting plate comprises narrow portion; In said narrow portion; Distance between the outer periphery of said mounting plate and the peristome of said opening portion is formed narrow, and in said mounting plate, the interval that has therebetween between said narrow the adjacent said joining portion is shorter than there not being the interval between said narrow the adjacent said joining portion therebetween.
2. fuel pump mounting structural according to claim 1 is characterized in that said narrow peristome is formed with the nick shaped recess.
3. fuel pump mounting structural according to claim 1 and 2 is characterized in that, is formed the ultimate range across said opening portion from the length of the straight line of said narrow said narrow the position farthest of the distance to said peristome.
4. according to each described fuel pump mounting structural in the claim 1 to 3, it is characterized in that said narrow is arranged in the position except that following zone in the said pump lip part: the opposed area relative with said connector element; Zone between said opposed area; The imaginary opposed area relative with the imaginary extension part of said connector element, said imaginary extension part extends on the direction opposite with the corresponding bearing of trend of said connector element; And the zone between said imaginary opposed area.
5. according to each described fuel pump mounting structural in the claim 1 to 4; It is characterized in that; Said opening portion is configured to make that the connector element that is arranged on said pump lip part only can pass following A/F, and the length at said A/F place from the straight line of said narrow said narrow the position farthest of the distance to said peristome is the ultimate range across said opening portion.
6. according to each described fuel pump mounting structural in the claim 1 to 5, it is characterized in that said narrow two positions that are arranged at respectively in the said mounting plate across said opening portion positioned opposite.
7. according to each described fuel pump mounting structural in the claim 1 to 6, it is characterized in that said connector element comprises fuel connector and the power connector that is connected to said pump main body.
8. fuel pump mounting structural according to claim 7 is characterized in that, said fuel connector becomes in the distance apart from the main body framework of vehicle on the direction of minimum range and extends.
9. according to claim 7 or 8 described fuel pump mounting structurals, it is characterized in that the top of said fuel connector and the top of said power connector are arranged on opposite directions.
10. according to each described fuel pump mounting structural in the claim 7 to 9, it is characterized in that said fuel connector is disposed in than the position of said power connector near said internal-combustion engine.
11. cart that is provided with according to each said fuel pump mounting structural in the claim 1 to 10.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-087045 | 2011-04-11 | ||
| JP2011087045A JP5664422B2 (en) | 2011-04-11 | 2011-04-11 | Fuel pump mounting structure and motorcycle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102734012A true CN102734012A (en) | 2012-10-17 |
| CN102734012B CN102734012B (en) | 2015-04-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210105364.7A Expired - Fee Related CN102734012B (en) | 2011-04-11 | 2012-04-11 | Fuel pump installation structure and bicycle provided with same |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5664422B2 (en) |
| CN (1) | CN102734012B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11413958B2 (en) | 2018-11-30 | 2022-08-16 | Honda Motor Co., Ltd. | Fuel cut-off unit attachment structure |
| CN216887242U (en) * | 2022-02-17 | 2022-07-05 | 上海峰飞航空科技有限公司 | Leak protection oil tank and unmanned aerial vehicle |
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| US20090184118A1 (en) * | 2008-01-17 | 2009-07-23 | Akihito Kobayashi | Fuel tank and fuel pump mounting structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5664422B2 (en) | 2015-02-04 |
| CN102734012B (en) | 2015-04-22 |
| JP2012219726A (en) | 2012-11-12 |
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