CN1490188A - Fuel supplier for vehicle - Google Patents
Fuel supplier for vehicle Download PDFInfo
- Publication number
- CN1490188A CN1490188A CNA031496040A CN03149604A CN1490188A CN 1490188 A CN1490188 A CN 1490188A CN A031496040 A CNA031496040 A CN A031496040A CN 03149604 A CN03149604 A CN 03149604A CN 1490188 A CN1490188 A CN 1490188A
- Authority
- CN
- China
- Prior art keywords
- fuel
- pump
- filter
- boss
- mounting hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Provided is a fuel supply apparatus of a vehicle with a function of absorbing vibration between an electric fuel pump and a supporting bracket and a function of changing sideward a fuel flow containing vapor discharged from a vapor bleeding hole of the electric fuel pump by a compact and inexpensive structure; a vapor bleeding hole 12D opens to a pump bottom portion 12E; an electric fuel pump P, in which a filter F is attached to a fuel suction passage 12C, is mounted to a supporting bracket 3, the filter F has a fuel flow passage boss 1 and a collar portion 1A extending sideward from the upper end; the collar portion 1A has a filter mounting hole 1B and a vapor bleeding hole opposing surface portion 1C; the filter F is attached to the electric fuel pump P by inserting the fuel flow passage boss 1 to the fuel suction passage 12C, inserting the filter mounting hole 1B to a supporting boss 15, arranging the vapor bleeding hole opposing surface portion 1C to oppose to an opening portion 12Da of the vapor bleeding hole 12D, and fitting a push nut 18 to the supporting boss 15 in this state; a tubular insulator 2 made of an elastic member is inserted to an insulator mounting hole 3B pierced on a bottom plate 3A of the supporting bracket 3; and the insulator is arranged between the bottom plate 3A and the bottom portion 12E.
Description
Technical field
The present invention relates to will be on the electric fuel pump of driving engine fueling and the filter that filters the fuel that is sucked by above-mentioned petrolift be installed in supporting bracket on the lid that is fixed in the opening of closing Fuel Tank, above-mentioned petrolift and filter are placed on the fuel supply system of the vehicle in the Fuel Tank.
Background technology
The structure of the fuel supply system of vehicle as shown in Figure 3.
T is the inner Fuel Tank that fuel is housed, and the opening TA of Fuel Tank T is closed by the lid 10 that makes circular plate type.
Below lid 10, fixing the supporting bracket 11 that enters in the Fuel Tank T,, the base plate 11A that forms to the side warpage is being set in the lower end of supporting bracket 11.
P is the electric fuel pump (being designated hereinafter simply as electric fuel pump) of friction eddy current type.Pump chamber 12A is made of pump cover that does not illustrate among the figure and pump case, the impeller 12B of the driven by motor rotation that does not illustrate in disposing by figure in pump chamber 12A.
On pump chamber 12A, fuel sucks path 12C and steam discharge orifice 12D opening.The opening of fuel suction path 12C is outstanding downwards from the bottom 12E of pump, and the opening of steam discharge orifice 12D is then on the 12E of pump bottom.
The pump bottom 12E of this electric fuel pump P is facing to the base plate 11A of supporting bracket 11, simultaneously along supporting bracket 11 configurations.In this state, utilize clamping band 12F to be installed on the bearing support 11.In addition, the fuel of electric fuel pump P sucks on the path 12C filter F is installed, and the fuel output channel 12G of electric fuel pump P is connected with rough filter S.Remove the fuel of the cleaning of foreign matter by rough filter S, the delivery pipe 13 by being provided with on lid 10 is supplied to the driving engine that does not illustrate among the figure.
The detailed structure at (position shown in the A among Fig. 3) as shown in Figure 4 and Figure 5 near the bottom of the electric fuel pump P of this fuel supply system.
Fig. 4 is near the longitudinal section of the main portion the electric fuel pump bottom; Fig. 5 is the cross sectional drawing of the B-B line among Fig. 4.
On the 12E of the pump bottom of electric fuel pump P, steam discharge orifice 12D has its opening of opening 12Da towards the below; Around opening 12Da, be provided with the outstanding partition wall that is roughly the U font 14 downwards from pump bottom 12E.The opening 14A of partition wall 14 is towards the side.
In addition, on the 12E of the bottom of pump, be provided with outstanding fuel downwards and suck path 12C, suck at fuel on the periphery of path 12C, be provided with joint stage portion 12Ca towards the below.In addition, outstanding supporting boss 15 is set downwards on the 12E of pump bottom, supporting boss 15 fuel suck the side of path 12C and have towards below fixedly stage portion 15a.
In addition, said fixing part 12Ca, 15a makes identical from the projecting height of pump bottom 12E.
16 is to dispose towards pump bottom 12E, is the rubber plate of heavy wall circular plate type, and it makes the roughly the same circular plate type of shape with pump bottom 12E.
In addition, on rubber plate 16, make recessed recess 16B downwards from the upper surface 16A of rubber plate 16, this recess 16B is around relative configuration of opening 12Da of bottom 16Ba with the steam discharge orifice 12D of the periphery of partition wall 14 and recess 16B, and the opening 16Bb of recess 16B is towards the side.(the opening 16Bb of recess 16B and the opening 14A of partition wall 14 are in same direction.)
In addition, a bleed hole 16D who passes from upper surface 16A towards lower surface 16C is set on rubber plate 16.The shape of this bleed hole 16D makes can insert the hole shape that fuel sucks path 12C and supporting boss 15.
Filter F is by the fuel flow path boss 17 on the excircle that inserts fuel suction path 12C and make cancellous filter house (not illustrating among the figure) formation.In the upper end of fuel flow path boss 17, form the flange 17A that extends towards the side, and, on flange 17A, wear the mounting hole 17B of filter.
In addition, the base plate 11A that forms to the horizontal direction warpage from the lower end of supporting bracket 11 forms towards the shape of the pump bottom 12E of whole electric fuel pump P roughly.On this base plate 11A, form and to insert the bleed hole 11Aa that logical fuel sucks path 12C at least.
Electric fuel pump P is installed on the supporting bracket 11 as follows.At first, filter F is installed on the electric fuel pump P.Again the fuel flow path boss 17 of filter F is inserted from the pump bottom outstanding fuel of 12E of electric fuel pump P and suck on the path 12C.Like this, flange 17A contacts with the fixedly stage portion 12Ca of fuel flow path boss 17 and the fixedly stage portion 15a of supporting boss 15, and at this moment, the filter mounting hole 17B of flange 17A inserts in the supporting boss 15.
In this state, will push nut 18 embeddings and be configured in the supporting boss 15, like this, filter F can be installed on the electric fuel pump P.Secondly, the pump bottom 12E towards electric fuel pump P installs rubber plate 16.That is: the bleed hole 16Da of rubber plate 16 is by the fuel flow path boss 17 of filter F, and fuel sucks the periphery of path 12C and supporting boss 15, and the upper surface 16A of rubber plate 16 is contacted with pump bottom 12E.On the other hand, opening is towards the recess 16B of the upper surface 16A of rubber plate 16, around the periphery of the partition wall 14 that highlights from pump bottom 12E.At this moment, the lower opening of the bottom 16Ba of recess 16B sealing partition wall 14, the while is towards the opening 12Da of steam discharge orifice 12D.
In addition, filter F and rubber plate 16 are configured on the pump bottom 12E of electric fuel pump P, under this state, the lower surface 16C of rubber plate 16 is configured on the base plate 11A of supporting bracket 11, and, after installing under this state, electric fuel pump P is fixed on the supporting bracket 11 with restraint zone 12F.
When utilizing the fuel supply system of this existing vehicle, in engine running or in the electric fuel pump driving, when supporting bracket 11 or electric fuel pump P vibration, electric fuel pump P is absorbed by rubber plate 16 in the vibration of above-below direction.
In addition, in pump chamber 12A, because impeller 12B rotates, produce steam in pump chamber 12A, this steam is in pump chamber 12A, and a part of fuel that pressure raises is discharged to the outside from the opening 12Da of steam discharge orifice 12D together.The fuel that contains steam, in case with after the bottom 16Ba of the recess 16B of rubber plate 16 conflicts, its flow direction changes to the side, discharges to the side from the opening 14A of partition wall 14.
Therefore, do not have the fuel that the pressure that contains steam raises and conflict with the filter house of filter F, cause that to make filter house damaged and be out of shape.
When adopting existing fuel supply system, because need make on rubber plate 16 around partition wall 14 and towards the recess 16B of steam discharge orifice 12D, so rubber plate 16 need make roughly whole shape of the pump of electric fuel pump P bottom 12E of covering.Like this, rubber plate 16 sizes are big, can not reduce the cost of part.
That is, because rubber plate 16 sizes are big, the mould costliness of rubber plate 16, material takes raising simultaneously.Particularly, contain in using fuel under the situation of Fuel Petroleum of alcohol, use the elastomeric material that contains fluorine, like this, fee of material improves more greatly.
In addition, owing to directly conflict with the bottom 16Ba of the recess 16B of rubber plate 16 from the fuel of the opening 12Da of steam discharge orifice 12D ejection, promoted the deterioration of rubber quality, this is bad.
In addition, because rubber plate 16 sizes are big, it is big that the shape of the base plate 11A of a side of support rubber plate 16 is also wanted, and therefore, the weight of supporting bracket 11 increases.
Summary of the invention
The present invention considers the problems referred to above and proposes, its objective is provides a kind of function with the vibration that absorbs electric fuel pump and supporting bracket, can change function, small-sized and cheap fuel supply system to the side with making from the flow direction of steam discharge orifice fuel that discharge, that contain steam.
In order to achieve the above object, motor vehicle fuel feedway of the present invention has: the lid of the opening of sealing Fuel Tank; Be installed in the friction eddy current type electric fuel pump on the supporting bracket; And suck path bonded assembly filter with the fuel of electric fuel pump; The opening with pump chamber bonded assembly fuel suction path and steam discharge orifice of this electric fuel pump is located at the bottom of pump, and the bottom faces of pump is facing to the base plate configuration that is fixed on the supporting bracket that covers, it is characterized by, filter has the fuel flow path boss that is inserted in the fuel suction path, with the flange that extends to the side from the upper end of fuel flow path boss, and on this flange, have filter mounting hole and steam discharge orifice opposite face, inserting the fuel that is configured in electric fuel pump by the fuel flow path boss with above-mentioned filter sucks in the path, the insertion of filter mounting hole is configured in from the supporting boss that give prominence to downwards the pump bottom, make relative configuration of opening of steam discharge orifice opposite face and steam discharge orifice, make the pushing nut with chimeric from the outstanding supporting boss of the filter mounting hole of flange, thereby, filter is installed on the electric fuel pump
On the other hand, on the base plate of supporting bracket, wear the insulator mounting hole, and, the tubular insulator that to make with elastomeric material inserts and is configured in this insulator mounting hole, above-mentioned insulator is configured between the pump bottom of the base plate of supporting bracket and electric fuel pump.
When adopting the fuel supply system of vehicle of the present invention, insert in the supporting boss, then, will push nut and supporting boss is chimeric, filter can be installed on the electric fuel pump by the filter mounting hole that will be arranged on the flange.
Again owing to be located at relative configuration of opening of steam discharge orifice opposite face and steam discharge orifice on the filter flange, conflict with steam discharge orifice opposite face from opening fuel discharge, that contain steam of steam discharge orifice, flow direction is changed to the side.
In addition, because in the facial relatively function that the flow direction from the opening fuel that discharge, that contain steam of steam discharge orifice is changed to the side that is provided with of the steam discharge hole of filter, therefore, can make bottom the pump that is placed on electric fuel pump and between the supporting bracket, the insulator geomery made from elastomeric material reduces, and the base plate size with the cooresponding supporting bracket of the other end of insulator is reduced.
Description of drawings
Fig. 1 is the longitudinal section of main portion of the fuel supply system of vehicle of the present invention.
Fig. 2 is the cross sectional drawing of the C-C line among Fig. 1.
Fig. 3 is the constructional drawing of the fuel supply system of whole vehicle.
Fig. 4 is the longitudinal section of main portion of the fuel supply system of existing vehicle.
Fig. 5 is the cross sectional drawing of the B-B line among Fig. 4.
Nomenclature: 1 fuel flow path boss; The 1A flange; 1B filter mounting hole; 1C steam discharge orifice opposite face; 2 insulators; 3 supporting brackets; The 3A base plate; 3B insulator mounting hole; 12C fuel sucks path; 12D steam discharge orifice; 12E pump bottom; The F filter; The P electric fuel pump.
The specific embodiment
Below, an embodiment of the fuel supply system of vehicle of the present invention is described according to Fig. 1 and Fig. 2.
Fig. 1 is the longitudinal section that is installed near the main portion the bottom of the electric fuel pump on the supporting bracket, and Fig. 2 is the cross sectional drawing of the C-C line among Fig. 1.
Because electric fuel pump P uses and present identical structure, therefore, uses identical symbol, and omission is described.
Filter F has inserts the fuel flow path boss 1 that is configured among the fuel suction path 12C; In the lower end of this fuel flow path boss 1, have the filter house (not illustrating among the figure) of filtering fuel, have plate shaped flange 1A in the upper end of fuel flow path boss 1.
Flange 1A is owing to have filter mounting hole 1B and steam discharge orifice opposite face 1C, and filter mounting hole 1B runs through flange 1A, so this mounting hole can insert from the supporting boss 15 that pump bottom 12C highlights.
In addition, steam discharge orifice opposite face 1C makes the shape of the lower opening of the partition wall 14 that can seal the U font.The opening of this partition wall from pump bottom 12E towards the below.
2 is the barrel-contoured insulator of being made by elastomeric material, and it is made of large-diameter portion 2A and minor diameter 2B.Large-diameter portion 2A makes partly towards the shape of pump bottom 12E, can make cylindrical shape or prismatic, and minor diameter 2B then makes cylindrical shape.For example, the diameter of large-diameter portion 2A is 10mm, and the diameter of minor diameter 2B is 4mm.(still, being not limited to this numerical value).The upper end of supporting bracket 3 is fixed on the graphic lid 10, and the lower end forms base plate 3A to the side warpage.
Filter F is installed on the electric fuel pump P by the following method.The fuel flow path boss 1 of filter F inserts and is configured among the fuel suction path 12C, and the upper surface of the flange 1A of filter F contacts with the fixedly stage portion 12Ca of fuel flow path boss 1 and the fixedly stage portion 15A of supporting boss 15.
Under this contact condition of flange 1A, supporting boss 15 inserted be configured among the filter mounting hole 1B, the lower openings of the partition wall 14 that steam discharge orifice opposite face 1C sealing highlights downwards from pump bottom 12E.
Steam discharge orifice opposite face 1C is with opening 12Da relative dispose of opening at the steam discharge orifice 12D of the inboard of partition wall 14.
In addition, be configured in by in flange 1A, the supporting boss 15 that highlights downwards, like this, filter F installed towards the pump bottom 12E of electric fuel pump P because pushing nut 18 is chimeric.
In addition, be configured on the base plate 3A of supporting bracket 3, therefore owing to insulator 2, two minor diameter 2B of each insulator 2, insertion is configured in each insulator mounting hole 3B that passes base plate 3A, like this, can respectively insulator 2 (being specially large-diameter portion 2A) be bearing on each base plate 3A.
In addition, the electric fuel pump P of filter F is installed, is installed on the supporting bracket 3, the pump of electric fuel pump P bottom 12E disposes facing to base plate 3A ground.Under this state, available restraint zone 12F shown in Figure 3 is fixed on filter F on the supporting bracket 3.
Under this stationary state, the upper surface of the large-diameter portion 2A of insulator 2 is approaching to be configured on the 12E of pump bottom, or contacts with pump bottom 12E.
Utilize the fuel supply system of the present invention of above structure, can drive electric fuel pump P, the foreign matter in the fuel in the Fuel Tank T is removed by the filter house of filter F.This fuel, inboard and fuel suction path 12C by fuel flow path boss 1 are inhaled in the pump chamber 12A.In pump chamber 12A, the fuel that pressure raises, by fuel output channel 12G, rough filter S and delivery pipe 13, supply engine.
At this moment, the steam that produces in pump chamber 12A sprays downwards with the opening 12Da of fuel from steam discharge orifice 12D.The fuel that contains steam, with after the steam discharge orifice opposite face 1C of filter F conflicts, change flow direction laterally, from the opening 14A of the partition wall 14 of opening to the left, discharge to the left.
Therefore, contain the fuel that boosts of steam, do not conflict, can not damage filter house and make the filter house distortion with the filter house of the lower end of the fuel flow path boss 1 that is configured in filter F.
On the other hand, in engine running, electric fuel pump P and supporting bracket 3 vibrations, wherein, electric fuel pump P is in the vibration of length direction, but insulated body 2 absorbs.
The above has following points to merit attention.
That is: owing on the flange 1A of filter F, have filter mounting hole 1B and steam discharge orifice opposite face 1C, like this, can obtain function that filter F installs and the function that changes the fuel flow direction that contains steam on electric fuel pump P.
In addition,, when forming filter F, use the synthetic resin material owing to have the flange 1A of above-mentioned filter mounting hole 1B and steam discharge orifice opposite face 1C, the integral molded plastic moulding, so the manufacturing cost of filter F can not improve.
And for example the above has the function of the flow direction that changes steam by making filter F, and it is just passable that 2 need of insulator have anti-vibration functions.Like this, insulator 2 can make the shape that partly contacts with pump bottom 12E, therefore, the size of insulator 2 is reduced greatly.
Therefore, even when utilizing expensive elastomeric material to make insulator 2, because of used quantity of material is few, so the manufacturing cost of insulator 2 can significantly not improve yet.
In addition, because the size of insulator 2 reduces, the shape of the base plate 3A of the supporting bracket 3 of supporting insulator 2 also can reduce, and therefore, can reduce the weight of supporting bracket 3 greatly, reduces the manufacturing cost of the supporting bracket made from compression machine 3 simultaneously.
As mentioned above, the vehicle according to the invention fuel supply system, filter has the fuel flow path boss that is inserted in the fuel suction path, with the flange that extends to the side from the upper end of fuel flow path boss, and on this flange, have filter mounting hole and steam round plate opposite face, the fuel flow path boss of above-mentioned filter is inserted in the fuel suction path that is configured in electric fuel pump, the insertion of filter mounting hole is configured in from the supporting boss that give prominence to downwards the pump bottom, make relative configuration of opening of steam discharge orifice opposite face and steam discharge orifice, make the pushing nut with chimeric from the outstanding supporting boss of the filter mounting hole of flange, thereby, filter is installed on the electric fuel pump
On the other hand, on the base plate of supporting bracket, wear the insulator mounting hole, and, the tubular insulator that to make with elastomeric material inserts and is configured in this insulator mounting hole, above-mentioned insulator is configured between the pump bottom of the base plate of supporting bracket and electric fuel pump.Filter is maximized, and cost is improved, can have the function that filter is installed in the function on the electric fuel pump and changes the steam flow direction.
Again because insulator can be the little shape of part in the face of the configuration of the pump of electric fuel pump bottom, therefore,, also can suppress manufacturing cost and increase substantially even when utilizing expensive elastomeric material to make insulator.
In addition, when the insulator size reduced, because the base plate geomery of the supporting bracket of supporting insulator also can reduce, therefore, the weight saving of whole fuel supply system can reduce the manufacturing cost of making supporting bracket with compression machine.
Claims (1)
1. the fuel supply system of a vehicle, it has: the lid of the opening of sealing Fuel Tank; Be installed in the friction eddy current type electric fuel pump on the supporting bracket; And suck path bonded assembly filter with the fuel of electric fuel pump; The opening with pump chamber bonded assembly fuel suction path and steam discharge orifice of this electric fuel pump is located at the bottom of pump, and the bottom faces of pump is facing to the base plate configuration that is fixed on the supporting bracket that covers, it is characterized by, filter (F) has the fuel flow path boss (1) that is inserted in the fuel suction path (12C), with the flange (1A) that extends to the side from the upper end of fuel flow path boss (1), and on this flange, have filter mounting hole (1B) and steam discharge orifice opposite face (1C), inserting the fuel that is configured in electric fuel pump (P) by the fuel flow path boss (1) with described filter sucks in the path (12C), filter mounting hole (1B) insertion is configured in from the supporting boss (15) that give prominence to downwards pump bottom (12E), make the relative configuration of opening (12Da) of steam discharge orifice opposite face (1C) and steam discharge orifice (12D), make pushing nut (18) with chimeric from the outstanding supporting boss (15) of the filter mounting hole (1B) of flange (1A), thereby, filter is installed on the electric fuel pump
On the other hand, on the base plate (3A) of supporting bracket (3), wear insulator mounting hole (3B), and, the tubular insulator (2) that to make with elastomeric material inserts and is configured in this insulator mounting hole, described insulator is configured in bottom the pump of the base plate (3A) of supporting bracket (3) and electric fuel pump between (12E).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002304145 | 2002-10-18 | ||
| JP2002304145A JP4074933B2 (en) | 2002-10-18 | 2002-10-18 | Vehicle fuel supply device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1490188A true CN1490188A (en) | 2004-04-21 |
| CN1269662C CN1269662C (en) | 2006-08-16 |
Family
ID=32451654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03149604 Expired - Fee Related CN1269662C (en) | 2002-10-18 | 2003-08-01 | Fuel supplier for vehicle |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP4074933B2 (en) |
| CN (1) | CN1269662C (en) |
| HK (1) | HK1064340A1 (en) |
| TW (1) | TWI231340B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101274591B (en) * | 2007-03-30 | 2012-05-23 | 本田技研工业株式会社 | Vehicular canister attachment structure |
| CN106659953A (en) * | 2014-07-25 | 2017-05-10 | 酷思滤清系统有限公司 | Multipositional filter attachment |
| CN106870225A (en) * | 2017-02-07 | 2017-06-20 | 无锡开普机械有限公司 | Fuel pump support meanss |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5880978B2 (en) * | 2013-08-28 | 2016-03-09 | 株式会社デンソー | Fuel pump module |
-
2002
- 2002-10-18 JP JP2002304145A patent/JP4074933B2/en not_active Expired - Fee Related
-
2003
- 2003-06-25 TW TW92117245A patent/TWI231340B/en active
- 2003-08-01 CN CN 03149604 patent/CN1269662C/en not_active Expired - Fee Related
-
2004
- 2004-09-16 HK HK04107059A patent/HK1064340A1/en not_active IP Right Cessation
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101274591B (en) * | 2007-03-30 | 2012-05-23 | 本田技研工业株式会社 | Vehicular canister attachment structure |
| CN106659953A (en) * | 2014-07-25 | 2017-05-10 | 酷思滤清系统有限公司 | Multipositional filter attachment |
| CN106659953B (en) * | 2014-07-25 | 2021-08-10 | 酷思滤清系统有限公司 | Multi-position filter attachment |
| CN106870225A (en) * | 2017-02-07 | 2017-06-20 | 无锡开普机械有限公司 | Fuel pump support meanss |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2004137987A (en) | 2004-05-13 |
| TWI231340B (en) | 2005-04-21 |
| HK1064340A1 (en) | 2005-01-28 |
| CN1269662C (en) | 2006-08-16 |
| TW200415304A (en) | 2004-08-16 |
| JP4074933B2 (en) | 2008-04-16 |
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