CN101684766A - Fuel supply device - Google Patents
Fuel supply device Download PDFInfo
- Publication number
- CN101684766A CN101684766A CN200910175878A CN200910175878A CN101684766A CN 101684766 A CN101684766 A CN 101684766A CN 200910175878 A CN200910175878 A CN 200910175878A CN 200910175878 A CN200910175878 A CN 200910175878A CN 101684766 A CN101684766 A CN 101684766A
- Authority
- CN
- China
- Prior art keywords
- supply device
- fuel
- pump
- fuel supply
- storage volume
- 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.)
- Pending
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 64
- 238000003860 storage Methods 0.000 claims abstract description 43
- 239000002828 fuel tank Substances 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 11
- 238000002485 combustion reaction Methods 0.000 claims description 10
- 238000005485 electric heating Methods 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 239000007921 spray Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000013019 agitation Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/04—Feeding by means of driven pumps
- F02M37/046—Arrangements for driving diaphragm-type pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/04—Feeding by means of driven pumps
- F02M37/18—Feeding by means of driven pumps characterised by provision of main and auxiliary pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/20—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines characterised by means for preventing vapour lock
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Reciprocating Pumps (AREA)
Abstract
The present invention relates to a fuel supply device. A known fuel supply device has a diaphragm pump for sucking fuel from a fuel tank and a high-pressure pump at the downstream. The diaphragm pumpis serially connected with an electric fuel pump and can improve the fuel amount transferred to the high-pressure pump according to demand, without additional drive power. In the fuel supply device according to the present invention, the electric fuel pump and the diaphragm pump is independently used as a pre-transferring pump. According to the present invention, a separate storage volume (15) foroutgassing of volatile fuel components is arranged before the high-pressure pump (3).
Description
Technical field
The present invention relates to a kind of fuel supply device.
Background technique
In DE 100 18 793 A1, disclose a kind of fuel supply device, had the diaphragm pump that from fuel tank, aspirates and the high-pressure service pump in downstream.This diaphragm pump is in parallel with electric fuel pump and can improve the fuel quantity that is transported to high-pressure service pump when needed, and does not need the driving power that adds.
Summary of the invention
Propose a kind of fuel supply device according to the present invention, have from the diaphragm pump of fuel tank suction and the high-pressure service pump in downstream, wherein, be provided with in the high-pressure service pump front one independent, be used to storage volume that volatile fuel element is discharged with gas.
Compare with the described fuel supply device of background technique, fuel supply device according to the present invention has the following advantages: electric fuel pump of the prior art can be removed and diaphragm pump can be separately as pre-transfer pump work, and its mode is provided with independent, as to be used to make volatile fuel element to discharge with a gas storage volume in the high-pressure service pump front.This storage volume is avoided bubble to arrive in the high-pressure service pump and is avoided obviously reducing the fuel stream of high-pressure service pump.Volatile fuel element can be discharged and be fed back in the storing container with gas in the storage volume.
Can realize the favourable expansion and the improvement of above-mentioned fuel supply device by other measures according to the present invention.
According to a kind of advantageous embodiments, described storage volume configuration is independent container, and this independent container can be fixed on the housing of high-pressure service pump.
Particularly advantageously be, the storage volume has two inlets and two outlets, and wherein first inlet is connected with diaphragm pump, and second inlet is connected with the reflow pipe of high-pressure service pump, and first exports and be connected with the inlet of high-pressure service pump, and second exports and be connected with fuel tank.
In addition advantageously, in the reflow pipe of high-pressure service pump, be provided with nozzle, because can realize stirring by this way to the fuel that is arranged in the storage volume.Form bubble thus, the formation of bubble promotes volatile fuel element to discharge with gas.
Also advantageously, the liquid level height in the storage volume is regulated by the position of second outlet, because can make volatile fuel element be evaporated to the gas blanket that is arranged in the liquid surface top by the liquid surface that exposes in this manner.Between the fuel space of liquid state and the gas volume above it, there is temperature difference.
Very advantageously be that the liquid level height in the storage volume is regulated by the inlet valve that is configured in first access point.This inlet valve constitutes by a valve body that is arranged on the activity on the float, this valve body and the valve seat acting in conjunction of first inlet and the liquid level height in the control store volume.Stop the storage volume with constantly through-flow from the volatile propellant composition of storing container and mix by this way.
Further advantageously, in the storage volume, be provided with a heating equipment that is used to heat the storage volume, because can promote volatile fuel element evaporation by this way.According to a kind of advantageous embodiments, described heating equipment is electric heating coil or electric heating spiral.
In addition advantageously, heating equipment is so settled, and makes the gas volume of storage volume be heated, and can further promote described evaporation because the temperature between gas volume and the liquid volume increases.
Description of drawings
Embodiments of the invention are simplified in the accompanying drawings and are illustrated and explain in detail in the description of back.
Fig. 1 schematically shows the fuel supply device that is used for transfer the fuel according to of the present invention,
Fig. 2 simplifies first embodiment who illustrates according to storage vessel of the present invention,
Fig. 3 simplifies second embodiment who illustrates according to reservoir vessel of the present invention.
Embodiment
Fig. 1 illustrates a kind of fuel supply device that is used for internal combustion engine of motor vehicle, especially a kind of self ignition formula of this internal-combustion engine internal-combustion engine.This fuel supply device has at least one pre-transfer pump 1, extracts out and transfer the fuel from storing container 2 by described pre-transfer pump 1.Pre-transfer pump 1 can be arranged in the storing container 2 or be arranged on the storing container outside.Be provided with a high-pressure service pump 3 in pre-transfer pump 1 downstream, the fuel that carried by pre-transfer pump 1 is imported into the suction side of this high-pressure service pump.Be provided with a high pressure accumulator 4 in high-pressure service pump 3 downstreams, pipeline 5 outputs to from these high pressure accumulator 4s and sprays into position 8 on the cylinder 9 of internal-combustion engine 10.These spray into position 8 and are provided with some spargers, and these spargers inject fuel in the firing chamber of cylinder 9 of internal-combustion engine 10.The cylinder 9 of internal-combustion engine 10 flows with sucking pipe 11 in known manner and is connected, and sucks by this sucking pipe 11 to be used for making fuel at the required air of firing chamber fuel.If the INO of cylinder 9 and the piston of cylinder move downward, then can in sucking pipe 11, produce negative pressure, make air be inhaled into by sucking pipe 11.If the suction valve of cylinder 9 cuts out, the pressure rises in the sucking pipe 11 then.Therefore, the rotating speed according to internal-combustion engine 10 produces the pulsed negative pressure and produces periodic pressure surge thus in sucking pipe 11.
Pre-transfer pump 1 is by the disclosed a kind of diaphragm pump of DE 100 18 793 A1, and this diaphragm pump is connected with the sucking pipe 11 of internal-combustion engine 10 by pipeline 12 and is driven by the pulsed negative pressure in the sucking pipe 11.Compare with known electric fuel pump, for example roller vane pump or vane pump, the pressure that such diaphragm pump forms is obviously less, thereby has the trend of stronger formation steam bubble in high-pressure service pump 3 upstreams.Diaphragm pump 1 sucking-off fuel and by a suction side that fuel is transported to high-pressure service pump from the pipeline that on the pressure side passes to high-pressure service pump 3 14 of diaphragm pump 1 from storing container 2.May need the series connection one after the other each other of a plurality of diaphragm pumps 1 is used for the pre-minimum precompression of determining of high-pressure service pump 3 in order to generation.
Diaphragm pump 1 has one first working room, and inlet 1.1 and outlet 1.2 are led in this first working room.Be configured with one second working room in addition, this second working room is adjacent with first working room and separate with first working room by diaphragm.Second working room is connected with the sucking pipe 11 of internal-combustion engine 10 via pipeline 12 by joint 1.3.
According to the present invention, be provided with an independent storage volume 15 in high-pressure service pump 3 fronts, this storage volume 15 helps volatile fuel element discharged and be arranged on diaphragm pump 1 with gas downstream.This storage volume 15 is avoided bubble to arrive high-pressure service pump 3 and is avoided the fuel lumen of high-pressure service pump to show minimizing, and its mode is that volatile fuel component is discharged and fed back in the storing container 2 with gas in storage volume 15.Fuel is so pretreated by this way, makes fuel bubble-freely be inhaled in the high-pressure service pump 3 basically.
The reflow pipe 22 of high-pressure service pump 3 leads in the storage volume 15 by nozzle 25 (for example many spray injectors), thereby realizes the strong agitation of fuel and produce bubble in storage volume 15.Volatile fuel element is advantageously discharged with gas.In addition, the vapor pressure of fuel reduces.
At first outlet, 18 places of leading to high-pressure service pump 3 filter 26 can be set, this filter 26 stops bubble to be inhaled in the high-pressure service pump 3.
Can be provided for the heating equipment 30 to 15 heating of storage volume in storage volume 15, this heating equipment for example is configured to electric heating coil or electric heating spiral (Fig. 2, Fig. 3).At this heating equipment 30 is set so, makes the gas volume 23 of 30 pairs of storages of heating equipment volume 30 heat.
Fig. 2 illustrates according to first embodiment shown in the simplification of storage vessel of the present invention.In device, remain unchanged or act on identical parts with respect to device and represent by identical reference character according to Fig. 1 according to Fig. 2.
Diaphragm pump 1 is given storage vessel 15 filling fuels by first inlet 16.In first embodiment, the maximum fluid height in the storage volume 15 is by the position regulation of second outlet 19.In addition, behind the maximum fluid height in reaching storage volume 15, the fuel that is input in the storage volume 15 is sent back in the storing container 2 by pipeline 24.
Fig. 3 illustrates according to second embodiment shown in the simplification of storage vessel of the present invention.In device, remain unchanged or act on identical parts with respect to device and represent by identical reference character according to Fig. 1 and Fig. 2 according to Fig. 3.
In a kind of second alternative embodiment, the liquid level height in the storage volume 15 is controlled on the constant liquid level by the inlet valve 31 that is configured in first inlet, 16 places.Unnecessary fuel and gas componant flow back in the storing container 2 by pipeline 24.
Claims (10)
1, a kind of fuel supply device has from the diaphragm pump of fuel tank suction and the high-pressure service pump in downstream, it is characterized in that, be provided with in high-pressure service pump (3) front one independent, be used to storage volume (15) that volatile fuel element is discharged with gas.
According to the fuel supply device of claim 1, it is characterized in that 2, described storage volume (15) is configured to independent container, this container can be fixed on the housing of high-pressure service pump (3).
3, according to the fuel supply device of claim 1, it is characterized in that, described storage volume (15) has two inlets (16,17) and two outlets (18,19), wherein, first inlet (16) is connected with diaphragm pump (1), and second inlet (17) is connected with the reflow pipe (22) of high-pressure service pump (3), and first outlet (18) is connected with the suction side of high-pressure service pump (3), and second outlet (19) is connected with fuel tank (2).
4, according to the fuel supply device of claim 2, it is characterized in that, in the reflow pipe (22) of high-pressure service pump (3), be provided with nozzle (25).
According to the fuel supply device of claim 2, it is characterized in that 5, the liquid level height in the described storage volume (15) is regulated by the position of second outlet (19).
6, according to the fuel supply device of claim 2, it is characterized in that inlet valve (31) adjusting that the liquid level height in the described storage volume (15) is located by being configured in first inlet (16).
7, according to the fuel supply device of claim 1, it is characterized in that, in described storage volume (15), be provided with a heating equipment (30) that is used for heating storage volume (15).
According to the fuel supply device of claim 7, it is characterized in that 8, described heating equipment (30) is electric heating coil or electric heating spiral.
According to the fuel supply device of claim 7, it is characterized in that 9, described heating equipment (30) so is provided with, make the gas volume of described storage volume (30) be heated.
According to the fuel supply device of claim 1, it is characterized in that 10, diaphragm pump (1) has an inlet and an outlet and one and is used for the joint that is connected with the sucking pipe (11) of internal-combustion engine (10).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008042324.6 | 2008-09-24 | ||
| DE200810042324 DE102008042324A1 (en) | 2008-09-24 | 2008-09-24 | Fuel supply device for internal-combustion engine of motor vehicle, has high-pressure pump provided upstream to separate storage volume for outgassing of volatile fuel components, where storage volume is designed as separate container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101684766A true CN101684766A (en) | 2010-03-31 |
Family
ID=41719611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910175878A Pending CN101684766A (en) | 2008-09-24 | 2009-09-23 | Fuel supply device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101684766A (en) |
| DE (1) | DE102008042324A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359427A (en) * | 2011-08-31 | 2012-02-22 | 济南轻骑摩托车股份有限公司 | Electric fuel injection pump with fuel evaporator |
| CN103573508A (en) * | 2012-07-30 | 2014-02-12 | 本田技研工业株式会社 | Fuel supply device for internal combustion engine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3090752B1 (en) * | 2018-12-20 | 2021-03-05 | Renault Sas | Fuel supply device. |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1146224A1 (en) * | 2000-04-15 | 2001-10-17 | Robert Bosch Gmbh | Fuel-supply device for an internal combustion engine |
| CN1654808A (en) * | 2004-02-12 | 2005-08-17 | 株式会社电装 | Fuel feed apparatus having inner supporting structure |
| CN1757902A (en) * | 2004-10-07 | 2006-04-12 | Ti集团自动推进系统有限责任公司 | Fuel filter arrangement |
-
2008
- 2008-09-24 DE DE200810042324 patent/DE102008042324A1/en not_active Withdrawn
-
2009
- 2009-09-23 CN CN200910175878A patent/CN101684766A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1146224A1 (en) * | 2000-04-15 | 2001-10-17 | Robert Bosch Gmbh | Fuel-supply device for an internal combustion engine |
| CN1654808A (en) * | 2004-02-12 | 2005-08-17 | 株式会社电装 | Fuel feed apparatus having inner supporting structure |
| CN1757902A (en) * | 2004-10-07 | 2006-04-12 | Ti集团自动推进系统有限责任公司 | Fuel filter arrangement |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359427A (en) * | 2011-08-31 | 2012-02-22 | 济南轻骑摩托车股份有限公司 | Electric fuel injection pump with fuel evaporator |
| CN103573508A (en) * | 2012-07-30 | 2014-02-12 | 本田技研工业株式会社 | Fuel supply device for internal combustion engine |
| CN103573508B (en) * | 2012-07-30 | 2015-12-02 | 本田技研工业株式会社 | The fuel supplying device of internal-combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102008042324A1 (en) | 2010-04-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100331 |