CN101545425B - Fuel supplement apparatus - Google Patents
Fuel supplement apparatus Download PDFInfo
- Publication number
- CN101545425B CN101545425B CN2008101261018A CN200810126101A CN101545425B CN 101545425 B CN101545425 B CN 101545425B CN 2008101261018 A CN2008101261018 A CN 2008101261018A CN 200810126101 A CN200810126101 A CN 200810126101A CN 101545425 B CN101545425 B CN 101545425B
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- China
- Prior art keywords
- fuel
- filter
- mentioned
- flange
- high pressure
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- 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.)
- Expired - Fee Related
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- Fuel-Injection Apparatus (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention provides a fuel supplement apparatus capable of implementing miniature, and suppressing noise while exhausting residual fuel from the pressure regulator. The fuel supplement apparatus comprises a flange, a fuel pump, a high pressure filter and a pressure regulator. The high pressure filter is disposed in a first space which is formed by a filter housing molded integrally on the flange, and a filter cover for interposing the pump holding body. The pump holding body is used for holding the fuel pump and the pressure regulator. A reflux duct for delivering the fuel filtered by a high pressure filter to the pressure regulator is formed in a second space formed by the flange and the filter cover, and the axis of the reflux duct is not in line with the flange side and the filter cover side. Moreover, a separation board parallel with the reflux duct is disposed on the flange side of the second space portion.
Description
Technical field
The present invention relates to a kind of with the fuel in the fuel tank to vehicle with oil sprayer of internal-combustion engine etc. in the fuel supplying device of pressurized delivered, at length say, relate to the miniaturization of this fuel supplying device.
Background technique
As everyone knows; The slag inclusiones such as dust that in catching fuel, contain; And when making this fuel stably be supplied in the oil sprayer that for example is installed in the fuel injection system on the motor; At first utilize to be installed in the bigger strainer of mesh on the fuel pump intake, that for example forms, remove the interior slag inclusion of fuel tank by the net of nylon etc.Then; To slag inclusion through the abrasion powder that comprises brush, transducer etc. this strainer or that in the motor part that constitutes petrolift, produce; Downstream side through being configured in petrolift (is observed along fuel flow path; Be meant the next stage of petrolift) high pressure filter, filter element for example made of paper is caught.
In addition, well-known fuel after must being filtered by high pressure filter maintains the pressure of regulation for the stable supplying to aforementioned oil sprayer, this pressure regulator, and promptly pressure regulator is disposed at the next stage of high pressure filter.
But; Except that the aforementioned crude filter, the configuration position of miscellaneous part fuel tank inside and outside all can, but for the simplicity of the so-called fuel delivery system between fuel tank and the internal-combustion engine; And; Also for fear of the residual fuel high temperatureization of discharging from the pressure regulator of keeping specified fuels pressure, modular " fuel supplying device " that will on the basis of petrolift, also comprise high pressure filter and pressure regulator usually is disposed at (for example, with reference to patent documentation 1 and 2) in the fuel tank.
Patent documentation 1: the spy opens flat 11-44279 communique, and (go in～the 3 page of left hurdle the 13rd of the 2nd page of right hurdle the 45th row, Fig. 1)
Patent documentation 2: the spy opens flat 8-334071 communique, and (the 3rd page of right hurdle the 5th row～the 19 gone, Fig. 1)
Summary of the invention
From the accompanying drawing of these patent documentations, also can to understand, in order high pressure filter and pressure regulator group being gone in " fuel supplying device " and modularization has to make its profile, particularly on the outside dimension direction of petrolift, to maximize.Therefore, the hatch bore diameter of fuel tank and module are correspondingly increased, have the tightness of fuel tank itself or the shortcoming that intensity reduces.
In addition, in the fuel supplying device of patent documentation 2, for the stream (label is 24b) of the above-below direction on the paper after the high pressure filter; As the main points of this invention, utilize net to carry out the efficient that moisture is caught in order to improve, its area (label is S2) is increased; Promptly increase the stream space, but like this, the vibration that produces when the pressure regulation by pressure regulator easily; Position at this label 24b causes resonance, and its result might cause sounding from fuel supplying device.
According to nearest technological improvement; Has the trend that reduces from vehicle, the so-called noise that particularly sends from the automobile that gasoline is acted as a fuel; This is not only the vibration or the noise that rely on motor and reduces; And rely on reduction and the elastic support structure of the power unit that is made up of motor and transmission device etc. of action sound of improvement, the solenoid valve of engine starting gear and electric generater of vehicle to a great extent, its result can make the quietness of vehicle further improve naturally.
Because this quietness significantly influences the aesthetic quality of vehicle; So the action sound of following its driving and generating for being responsible for to the stable fuel supplying device of supplying with of oil sprayer is no exception; Need avoid further being transmitted in the car, and causing the aesthetic quality to descend because the sound that aforementioned resonance produces is propagated out from fuel tank; Promptly because driver is waited uneasiness, the unplessantness displeasure cause, and cause the travelling comfort of vehicle or merchantability to reduce.
The present invention proposes in order to address the above problem, and its purpose is to obtain a kind of realization miniaturization, suppresses the fuel supplying device of the noise of residual fuel when pressure regulator is discharged simultaneously.
The fuel supplying device that the present invention relates to has: flange, and it is installed on the upper opening of fuel tank; Petrolift, it sucks and ejection via the fuel of strainer with above-mentioned fuel tank; High pressure filter, it filters the fuel from this petrolift ejection; And pressure regulator; The pressure of the fuel after it will be filtered by this high pressure filter maintains in the scope of regulation; Above-mentioned high pressure filter is arranged in first space portion, and this first space portion is through integrated filter head housings on above-mentioned flange and is used for the plug-in mounting pump and keeps the filter hood of body to obtain that this pump keeps body to be used to keep above-mentioned petrolift and pressure regulator; Simultaneously; In second space portion that obtains utilizing above-mentioned flange and filter hood, form the fuel that makes by after the above-mentioned high pressure filter filtration and arrive the backflow stream of above-mentioned pressure regulator, and make the axis of above-mentioned backflow stream inconsistent in above-mentioned flange side and above-mentioned filter hood side; In addition, at the above-mentioned flange side setting of above-mentioned second space portion and the dividing plate of the parallel axes of above-mentioned backflow stream.
The effect of invention
The present invention as above state bright shown in, low price that the raising to the organoleptic quality of vehicle cuts much ice and small-sized fuel supplying device can be provided.
Description of drawings
Fig. 1 is the outward appearance oblique drawing of the fuel supplying device 101 in the mode of execution 1 of the present invention.
Fig. 2 is the sectional drawing of Fig. 1.
Fig. 3 is that the A of Fig. 2 is to view.
Fig. 4 is the fastening preceding exploded perspective view of Fig. 1.
Embodiment
Mode of execution 1
Fig. 1 is the outward appearance oblique drawing of the fuel supplying device in the mode of execution 1 of the present invention, and Fig. 2 is the sectional drawing of Fig. 1, Fig. 3 be the A of Fig. 2 to view, flange and filter hood as the critical piece of this mode of execution only are shown.In addition, Fig. 4 is the fastening preceding exploded perspective view of Fig. 1, and flange and filter hood as critical piece equally only are shown, and its flange is the B view on Fig. 1 paper.
In Fig. 1; If generally distinguish; Then fuel supplying device 101 is made up of following part: the flange 1 of insulative resin system, spraying pipe 1b, backflow pipe arrangement 1c and connector 1d that it is one-body molded to have filter head housings 1a, be connected with not shown fuel hose to oil sprayer etc.; The filter hood 2 of insulative resin system, itself and filter head housings 1a are fastening; Pump keeps body 3, and it engages with filter hood 2 with for example buckle mode, states petrolift after the maintenance; Strainer 4, it keeps the opening portion 3a (with reference to Fig. 2) of body 3 to insert from this pump, and is chimeric with the fuel pump intake; And liquid level detector 5, it has buoy 5a, and this buoy 5a is installed on the side surface of filter hood 2, states the pasta of the fuel in the fuel tank after being used to detect.In addition, with known identical ground, have from the lead 6 of connector 1d the driving that is connected with petrolift with lead, the signal that is connected with liquid level detector 5 with lead and after the earthy lead stated.
Next, the assembling sequence of this fuel supplying device 101 is described.Downside from the paper of filter head housings 1a inserts high pressure filter 8; And make the top board butt of itself and filter head housings 1a; This high-pressure filteration 8 is communicated with spraying pipe 1b; Make simultaneously between the lower end surface of filter head housings 1a and high pressure filter 8 concordant (two plane coplanes), that is, the lower end surface of the lower end surface of filter head housings 1a and high pressure filter 8 is positioned on the roughly same plane.Through with filter hood 2 for example the hot plate welding on this lower end surface, not only make filter head housings 1a and filter hood 2 fastening, also that high pressure filter 8 is fastening simultaneously.Utilize this fastening, obtain aforementioned first and second space portion 51,52.In addition;, fuel produces static when passing through the filter element 8a of this high pressure filter 8, but owing to this static is put aside in clamping filter element 8a and the inner core 8b by electroconductive resin molding, therefore when aforementioned hot plate welds; As long as will weld with mode and the inner core 8b that exposes from filter hood 2 by the terminal component 10 (with reference to Fig. 4) of electroconductive resin molding; Aforesaid ground wire is connected with this terminal component 10, release electrostatic easily just, thereby preferred.
After yielding rubber 11 is laid on interior end 3b that pump keeps body 3 and goes up, petrolift 7 is inserted pumps keep in the bodies 3.Here, the opening portion 11a of opening portion 3a and yielding rubber 11 is set to roughly concentric, and the suction port 7a of petrolift 7 is positioned at above-mentioned opening portion 3a, 11a place.That is, insert among opening portion 3a, the 11a, suction port 7a and joint 4a are communicated with through the joint 4a that makes strainer 4.
Pressure regulator 9 is encircled on the fuel discharge outlet 2a that 12 liquid thickly are inlaid in filter hood 2 via O shape after, keep the card complex hole 3c of body 3 engage through making pump, and filter hood 2 and pump maintenance body 3 buckles are engaged with snap fit tabs 2c (all with reference to Fig. 1).Through this engaging, pressure regulator 9 is remained on pump keep on the body 3, simultaneously, make the connecting tube 13 that covers on the ejiction opening 7b that is installed in petrolift 7, liquid thickly is inlaid on the fuel suction port 2b that is arranged on the filter hood 2.This fuel suction port 2b is communicated with filter element 8a, and its result can guarantee the fuel flow path from strainer 4 to spraying pipe 1b, and comprises the backflow stream at interior residual fuel stream from spraying pipe 1b to opening portion 3a.Then, through liquid level detector 5 is installed, and lead 6 is connected with connector 1d, and assembles completion fuel supplying device 101 illustrated in fig. 1.
Below, according to said structure, the action of this fuel supplying device 101 is described, but should action itself be well-known.That is, if never illustrated storage battery via connector 1d, lead 6 to petrolift 7 supplying electric currents, make then that not shown axle rotates with not shown impeller as running shaft in the petrolift 7.Follow this rotation, the fuel 100 in the fuel tank 99 imports from suction port after removing slag inclusion by strainer 4, and after pressurization, sprays from ejiction opening 7b.The pressurized fuel of this ejection is directed among the filter element 8a, and here to after catching through slag inclusion strainer 4 or that contain the abrasion powder of brush etc., 1b supplies with to oil sprayer via spraying pipe.Subsequently, as previously mentioned, the pressure that is supplied to the fuel of oil sprayer remains specified value by pressure regulator 9, and simultaneously, the result that pressure remains specified value is that residual fuel is discharged from pressure regulator 9 via backflow pipe arrangement 1c.The fuel of this discharge sucks via strainer 4 once more.
So far still the position of spraying pipe 1b is not described; But can envision the layout relationship restriction that this spraying pipe 1b receives fuel tank 99 vehicle component parts on every side largely; For example in this mode of execution 1; Spraying pipe 1b is as shown in Figure 3, is arranged on center line with respect to flange 1 on paper on the position of right-hand skew.Like this, if, on filter hood 2, mark mark " * ", then be position as shown in Figure 4 to be axis a towards the point of branching 1e of backflow pipe arrangement 1c (with reference to Fig. 2) from this spraying pipe 1b.Here; If make the aligned in position of axis b (with reference to Fig. 3) Yu this mark " * " of pressure regulator 9; If promptly make axis a consistent with b, then the boundary dimension of pressure regulator 9 is outstanding outward with respect to the outer radial of flange 1, must open pore 99a correspondingly be enlarged.
Therefore; In this mode of execution; As shown in Figure 4; Through fuel discharge outlet 2a being arranged on respect to the position (position of mark " * ") of intersecting with axis a on the filter hood 2 along the peripheral part 2d of filter hood 2, be axis a and axis b thereby 2 axis occur on paper to the position that clockwise direction departs from.Like this; Through making pressure regulator 9 be positioned at the internal side diameter of fuel supplying device 101, say with being more readily understood, drop in the area of contour of external diameter of flange 1; Realize the miniaturization of this device 101 itself thus; Assembling performance in fuel tank 99 improves, and needn't exceedingly open pore 99a be enlarged simultaneously, and the tightness of fuel tank 99 and intensity improve.In addition, Fig. 2 and distance L 1 and L2 shown in Figure 3, as shown in Figure 4, be with the line that links this axis a and b as cornerwise rectangular minor face with grow the limit, be used to represent the deviation of axis a and b.
But, since this distance L 2 be about fuel discharge outlet 2a diameter more than or equal to 4 times, in other words; Residual fuel is discharged existing as second space portion 52 more than or equal to 4 times sectional area approximately of required diameter; Therefore, as said, because the vibration that pressure regulator 9 produces when pressure regulation as the problem of patent documentation 2; Cause resonance at this second space portion 52, the possibility that becomes noise source thus is very high.Therefore, in this mode of execution, like Fig. 3 and shown in Figure 4; Flange 1 side at second space portion 52; In more detail, in backflow pipe arrangement 1c, be provided with, residual fuel arrow that kind as shown in Figure 3 is discharged with so-called crank-like axis a and the separated dividing plate 1c1 of b.Its result departs to make them inconsistent through the natural frequency that makes the above-mentioned vibration frequency and second space portion 52, then can not cause resonance, can suppress noise.Thus, can provide small-sized, at a low price and the outstanding fuel supplying device of noise countermeasure to the user.In addition; Usually, if consider to discharge this point as residual fuel by the fuel major part of petrolift 7 ejections, and through residual fuel is discharged downwards as stated; In motor stops; Moisture near the spraying pipe 1b the fuel also can fall this point to pressure regulator 9 owing to deadweight, and mode of execution then of the present invention is caught this respect at its moisture, compares also not inferior with patent documentation 2.
Claims (2)
1. fuel supplying device, it has: flange, it is installed on the upper opening of fuel tank; Petrolift, it sucks and ejection via the fuel of strainer with above-mentioned fuel tank; High pressure filter, it filters the fuel from this petrolift ejection; And pressure regulator; The pressure of the fuel after it will be filtered by this high pressure filter maintains in the scope of regulation; Above-mentioned high pressure filter is arranged in first space portion; This first space portion is through integrated filter head housings on above-mentioned flange and is used for the plug-in mounting pump and keeps the filter hood of body to obtain that this pump keeps body to be used to keep above-mentioned petrolift and pressure regulator
It is characterized in that,
In second space portion that obtains utilizing above-mentioned flange and filter hood; Formation makes by the fuel after the above-mentioned high pressure filter filtration and arrives the backflow stream of above-mentioned pressure regulator, and makes the axis of above-mentioned backflow stream inconsistent in above-mentioned flange side and above-mentioned filter hood side.
2. fuel supplying device according to claim 1 is characterized in that,
At the flange side setting of second space portion and the dividing plate of the parallel axes of backflow stream.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008083309 | 2008-03-27 | ||
| JP2008083309A JP2009236006A (en) | 2008-03-27 | 2008-03-27 | Fuel supply device |
| JP2008-083309 | 2008-03-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101545425A CN101545425A (en) | 2009-09-30 |
| CN101545425B true CN101545425B (en) | 2012-07-18 |
Family
ID=41192751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101261018A Expired - Fee Related CN101545425B (en) | 2008-03-27 | 2008-06-26 | Fuel supplement apparatus |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2009236006A (en) |
| CN (1) | CN101545425B (en) |
| TW (1) | TW200940817A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5338733B2 (en) * | 2009-11-05 | 2013-11-13 | 三菱電機株式会社 | Fuel supply device |
| JP5414483B2 (en) * | 2009-12-01 | 2014-02-12 | 三菱電機株式会社 | Fuel supply device |
| JP5809948B2 (en) * | 2011-12-05 | 2015-11-11 | 株式会社ケーヒン | Fuel supply unit |
| CN103939250B (en) * | 2013-01-18 | 2018-04-24 | 株式会社电装 | Fuel supply system |
| CN104074648B (en) * | 2013-03-28 | 2017-11-17 | 比亚迪股份有限公司 | Fuel delivery control method and fuel oil supply system for the engine of automobile |
| CN104248871B (en) * | 2014-09-30 | 2016-01-20 | 浙江艾波特环保科技股份有限公司 | A kind of water purifier filter element component of fast changeable |
| JP6444481B1 (en) * | 2017-12-14 | 2018-12-26 | 株式会社ケーヒン | Manufacturing method of fuel supply device |
| JP6869917B2 (en) | 2018-03-28 | 2021-05-12 | 愛三工業株式会社 | Fuel supply device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6520163B2 (en) * | 2000-09-06 | 2003-02-18 | Mitsubishi Denki Kabushiki Kaisha | In-tank fuel supply apparatus |
| CN1626788A (en) * | 2003-12-09 | 2005-06-15 | 本田技研工业株式会社 | Fuel supply means for vehicle |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08210212A (en) * | 1994-11-04 | 1996-08-20 | Nippondenso Co Ltd | Fuel feeding device |
| JP3052784B2 (en) * | 1995-06-06 | 2000-06-19 | トヨタ自動車株式会社 | Fuel supply device for internal combustion engine |
| JPH1144279A (en) * | 1997-07-25 | 1999-02-16 | Kiyousan Denki Kk | Mounting structure of pressure regulating device in fuel feed system |
| JP2002256997A (en) * | 2001-02-27 | 2002-09-11 | Keihin Corp | Filter device |
| JP2003155963A (en) * | 2001-11-20 | 2003-05-30 | Kyosan Denki Co Ltd | Pulsation damping device for fuel pump module |
| JP3887821B2 (en) * | 2003-03-14 | 2007-02-28 | 株式会社デンソー | Fuel supply device |
| JP5048265B2 (en) * | 2006-04-21 | 2012-10-17 | 株式会社ケーヒン | Fuel supply module |
-
2008
- 2008-03-27 JP JP2008083309A patent/JP2009236006A/en active Pending
- 2008-05-29 TW TW97119830A patent/TW200940817A/en unknown
- 2008-06-26 CN CN2008101261018A patent/CN101545425B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6520163B2 (en) * | 2000-09-06 | 2003-02-18 | Mitsubishi Denki Kabushiki Kaisha | In-tank fuel supply apparatus |
| CN1626788A (en) * | 2003-12-09 | 2005-06-15 | 本田技研工业株式会社 | Fuel supply means for vehicle |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2000-18114A 2000.01.18 |
| JP特开平11-44279A 1999.02.16 |
Also Published As
| Publication number | Publication date |
|---|---|
| TW200940817A (en) | 2009-10-01 |
| CN101545425A (en) | 2009-09-30 |
| JP2009236006A (en) | 2009-10-15 |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120718 Termination date: 20140626 |
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| EXPY | Termination of patent right or utility model |