CN1077248C - Sucking jet pump - Google Patents
Sucking jet pump Download PDFInfo
- Publication number
- CN1077248C CN1077248C CN96190003A CN96190003A CN1077248C CN 1077248 C CN1077248 C CN 1077248C CN 96190003 A CN96190003 A CN 96190003A CN 96190003 A CN96190003 A CN 96190003A CN 1077248 C CN1077248 C CN 1077248C
- Authority
- CN
- China
- Prior art keywords
- fuel
- fuel tank
- jet pump
- nozzle
- mixing tube
- 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.)
- Expired - Fee Related
Links
- 239000000446 fuel Substances 0.000 claims abstract description 80
- 239000002828 fuel tank Substances 0.000 claims description 70
- 238000002485 combustion reaction Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005507 spraying 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
- F02M37/02—Feeding by means of suction apparatus, e.g. by air flow through carburettors
- F02M37/025—Feeding by means of a liquid fuel-driven jet pump
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
- F04F5/46—Arrangements of nozzles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Jet Pumps And Other Pumps (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The sucking jet pump (20) is mounted in a motor vehicle's reservoir tank and serves to delivery into a container (12) from which fuel is drawn by a delivery pump assembly. The sucking jet pump (20) is provided with a nozzle (22) connected to a fuel line (18) and a mixer pipe (26) connected at a distance from the nozzle, forming an aperture (27) in the reservoir (10) between the mixer pipe (26) and nozzle (22). The mixer pipe (26) protrudes through a wall (13) into the container (12) and is provided, at its end region (28) inside the container (12) on the upper area of the circumference, with a slit aperture (30). The fuel expelled from the nozzle (22) when strongly heated can vaporise to form gas bubbles which can also enter the mixer pipe (26). The gas bubbles can now escape through the slit (30) and thus no longer impair the operation of the sucking jet pump (20) or, if at all, only to a limited degree.
Description
The present invention relates to a kind of fuel delivery means, have a fuel tank, a fuel tank that is arranged in wherein, a conveying assembly is sent fuel from fuel tank, a fuel vacuum jet pump, this vacuum jet pump has nozzle and mixing tube that is arranged in this nozzle back of a connection fuel channel, one gap is arranged between nozzle and the mixing tube, by this gap, vacuum jet pump fuel on every side from the fuel tape of this nozzle ejection and enter this mixing tube together, wherein, vacuum jet pump is sent to fuel the fuel tank from fuel tank, has at least one opening in the top circumference range of end when it is in the mounting point of mixing tube away from nozzle.
Introduced a kind of vacuum jet pump of this type among the patent document DE3500718A1, this kind vacuum jet pump is used for fuel is conveyed into fuel tank from the fuel tank of automobile, and an assembly is with fuel sucking-off and be transported to the internal-combustion engine of automobile from fuel tank.This vacuum jet pump has a nozzle that links to each other with fuel line, and a mixing tube that matches with this nozzle.Between this nozzle and mixing tube, have a gap,, be conveyed in the mixing tube jointly and therefore enter into fuel tank from the fuel of nozzle ejection and the fuel the fuel tank by this gap.The fuel line that links to each other with nozzle is a return tube, by this return tube, is carried the material container that strile-backs from internal-combustion engine again from the too much fuel that conveying assembly is carried.The fuel that flows in return tube is by heat intensive repeatedly, so this fuel produces steam bubble when spraying to vacuum jet pump, and this steam bubble will hinder the work of vacuum jet pump, and so and can not carry enough fuel to fuel tank.
GB-A-2271327 discloses a kind of such fuel delivery means.This fuel delivery means has a fuel tank, wherein is provided with a fuel tank, and a conveying assembly is sent fuel from fuel tank.This fuel delivery means also has a fuel vacuum jet pump in addition, this pump has a nozzle that links to each other with fuel channel and to be arranged in the mixing tube of nozzle back, form a gap between nozzle and the mixing tube, by this gap, see that from the fuel tape of nozzle ejection true fuel around jet pump enters mixing tube together.This vacuum jet pump is sent into fuel tank with fuel from fuel tank.Mixing tube has a beveled in its end away from nozzle, extends to its upper surface portion when mixing tube installs after-opening.Mixing tube extend in the vertical fuel pipe that leads to fuel tank top.The fuel that flows out from mixing tube turns to the vertical fuel pipe of inflow by this diagonal cut joint.The pipeline that links to each other with nozzle is a reflow pipe, and the unnecessary fuel that conveying assembly is sent flow back in the container through this pipe.The fuel that flows through reflow pipe is by heat intensive repeatedly, product gas and produce steam bubble on vacuum jet pump, and the work that this is an impediment to vacuum jet pump makes it not send into enough fuel to fuel tank.Wherein, steam bubble upwards flows into fuel tank by vertical fuel channel, and in this case, it can hinder fuel the flowing in vertical pipe that is transferred.
The objective of the invention is to, a kind of fuel delivery means that has vacuum jet pump is provided, the steam bubble that makes on the vacuum jet pump to be produced can upwards be overflowed, and does not hinder fuel by the sending into of vacuum jet pump, but guarantees vacuum jet pump also proper functioning under the heated situation of fuel thus.
According to the present invention, a kind of fuel delivery means has been proposed, have a fuel tank, a fuel tank that is arranged in wherein, a conveying assembly is sent fuel from fuel tank, a fuel vacuum jet pump, this vacuum jet pump has nozzle and mixing tube that is arranged in this nozzle back of a connection fuel channel, one gap is arranged between nozzle and the mixing tube, by this gap, vacuum jet pump fuel on every side from the fuel tape of this nozzle ejection and enter this mixing tube together, wherein, vacuum jet pump is sent to fuel the fuel tank from fuel tank, has at least one opening in the top circumference range of end when it is in the mounting point of mixing tube away from nozzle, described mixing tube stretches into fuel tank in the scope of the bottom of fuel tank, described at least one opening is built into mixing tube and places on the end within the fuel tank.
The fuel delivery means that the present invention proposes has following advantage, be that the steam bubble that is produced on its vacuum jet pump can upwards be overflowed by at least one slit on the mixing tube when entering fuel tank, guaranteed that thus vacuum jet pump also can proper functioning under the heated situation of fuel.
Three embodiments of the present invention provide in the accompanying drawings, and will be set forth in further detail in ensuing embodiment describes.
Figure 1 shows that the schematic cross-section of the fuel tank that has a vacuum jet pump;
Fig. 2 is vacuum jet pump first embodiment's a longitudinal section enlarged diagram;
Fig. 3 among Fig. 2 along the schematic appearance of the arrow III direction vacuum jet pump of seeing over;
Fig. 4 is vacuum jet pump second embodiment's a longitudinal section enlarged diagram;
Fig. 5 is for seeing the schematic appearance of vacuum jet pump in the past along arrow V direction among Fig. 4;
Fig. 6 is vacuum jet pump the 3rd embodiment's a schematic appearance.
Figure 1 shows that the fuel delivery means that has fuel tank 10 of automobile, be provided with a fuel tank 12 near its bottom in the fuel tank 10.One assembly 14 is with fuel sucking-off from fuel tank 12, and well-known, this fuel is in effumability liquid and the internal-combustion engine 16 that is transported to automobile.The fuel that the fuel that this conveying assembly 14 is carried is consumed more than internal-combustion engine 16, superfluous fuel comes back to fuel tank 10 by a return tube 18.One vacuum jet pump of being located near fuel tank 10 bottoms 20 links to each other with this return tube 18.This vacuum jet pump 20 has a nozzle 22 that links to each other with return tube 18, and this nozzle 22 constitutes as the airless injection pipe, and has a spout end 23, and this spout end 23 has with return tube 18 internal cross section compares the spout cross section that reduces.With nozzle 22 at a distance of an axial distance, be provided with a mixing tube 26, its internal cross section is greater than the spout cross section of nozzle 22.Between nozzle 22 and mixing tube 26, be a gap 27, this gap 27 for example is an annular gap, by this gap 27, the fuel in the fuel tank 10 can enter in the mixing tube 26.Nozzle 22 places within the fuel tank 10, outside the fuel tank 12, the wall 13 that the terminal part 28 away from nozzle 22 of mixing tube 26 passes fuel tank 12 extend in the fuel tank 12.This mixing tube 26 can be provided with the safety check that does not draw among the figure in fuel tank 12, by this safety check, can suppress fuel and flow out to outside the fuel tank 12 by this mixing tube 26.
When work, assembly 14 is transported to fuel in the internal-combustion engine 16 from fuel tank 12.Internal-combustion engine 16 does not have used up fuel to flow back in the fuel tank 10 by return tube 18.Therefore the fuel that flows in return tube 18 under the working pressure that conveying assembly 14 produces, from spout end 23 outflows of nozzle 22, and brought the fuel in the fuel tank 10 in the mixing tube 26 into by gap 27.By this vacuum jet pump 20, fuel that flows in return tube 18 and the fuel in the fuel tank 10 are transported in the fuel tank 12, so that have enough fuel quantities in the fuel tank 12 all the time for internal-combustion engine 16 work.This vacuum jet pump 20 also can be applicable to a fuel tank 10 that is divided into two districts, this moment, fuel tank 12 placed in the zone of fuel tank 10, separate by another zone of convex portion and this fuel tank 10 in this zone, does not therefore have fuel to flow to the zone that is equipped with fuel tank 12 in this another zone.In this case, fuel is transported in the zone that is equipped with fuel tank 12 by this vacuum jet pump 20 another zone from fuel tank 10.
Fig. 2 and first embodiment who Figure 3 shows that vacuum jet pump 20.Figure 2 shows that the mixing tube 26 of nozzle 22 that has spout end 23 and the wall 13 that passes fuel tank 12.This mixing tube 26 has one away from nozzle 22, stretches into the terminal part 28 in the fuel tank 12, has a slot-shaped opening 30 at the upper area of this terminal part 28.This opening 30 is established along being parallel to the direction of its longitudinal axis 29 from the terminal of mixing tube 26.The width in this slit 30 as shown in Figure 3, is a constant along the length direction in this slit 30, but also can change along the length direction in this slit 30.May be by the fuel that return tube 18 flow back in the fuel tank from internal-combustion engine 16 by heat intensive, when flowing out, nozzle 22 can produce steam bubble when fuel thus, and this steam bubble enters into mixing tube 26.This steam bubble can upwards be overflowed in fuel tank 12 by slit 30, so this steam bubble does not hinder or less obstruction fuel tank 12 interior fuel are carried.
Fig. 4 and second embodiment who Figure 5 shows that vacuum pump 120 compare with first embodiment, and this embodiment revises part and only is mixing tube 126, and the other parts of vacuum jet pump 120 do not change.The terminal away from nozzle 22 of this mixing tube 126 is passed wall 13 and is extend in the fuel tank 12.Have an opening 130 in the upper extent that places the terminal part 128 in the fuel tank 12 of this mixing tube 126, and have a sloping platform 132, the longitudinal axis 129 that this sloping platform 132 favours mixing tube 126 extends to the terminal of this mixing tube 126 always.The structure of this sloping platform 132 has enlarged the sectional area of opening 130 and has extended to the terminal of mixing tube 126 always.By this opening 130, upwards overflow from the steam bubble that mixing tube 126 comes out, therefore do not influence or the less work that influences vacuum jet pump 120.
Figure 6 shows that the 3rd embodiment of vacuum jet pump 220 of the present invention, have a plurality of openings 230 at the terminal part 228 of its mixing tube 226, this opening 230 scatters setting on mixing tube 226, and/or is symmetrically set on longitudinal axis 229 directions.The sectional shape of this opening 230 can be arbitrary shape.
Claims (4)
1, a kind of fuel delivery means, have a fuel tank (10), a fuel tank (12) that is arranged in wherein, a conveying assembly (14) is sent fuel from fuel tank, a fuel vacuum jet pump (20,120,220), this vacuum jet pump has nozzle (22) and mixing tube (26 that is arranged in the nozzle back of a connection fuel channel (18), 126,226), nozzle (22) and mixing tube (26,126, one gap (27) is arranged 226),, vacuum jet pump (20 from the fuel tape of this nozzle (22) ejection by this gap, 120,220) fuel on every side enters this mixing tube (26,126,226) together, wherein, vacuum jet pump (20,120,220) is sent to fuel the fuel tank (12) from fuel tank (10), mixing tube (26,126,226) away from the end (28,128 of nozzle (22), 228) has at least one opening (30 in the top circumference range when it is in the mounting point, 130,230), it is characterized in that, described mixing tube (26,126,226) in the scope of the bottom of fuel tank, stretch into fuel tank (12), described at least one opening (30,130,230) be built into mixing tube (26,126,226) and place end (28 within the fuel tank (12), 128,228) on.
2, fuel delivery means as claimed in claim 1 is characterized in that, described at least one opening (30) is a slit.
3, fuel delivery means as claimed in claim 2 is characterized in that, described slit (30) extend to the terminal of mixing tube (26).
As claim 2 or 3 described fuel delivery means, it is characterized in that 4, longitudinal axis (29) direction that described slit (30) are parallel to mixing tube (26) stretches.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19504565.3 | 1995-02-11 | ||
| DE19504565A DE19504565A1 (en) | 1995-02-11 | 1995-02-11 | Suction jet pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1145660A CN1145660A (en) | 1997-03-19 |
| CN1077248C true CN1077248C (en) | 2002-01-02 |
Family
ID=7753712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96190003A Expired - Fee Related CN1077248C (en) | 1995-02-11 | 1996-01-11 | Sucking jet pump |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0772745B1 (en) |
| JP (1) | JPH09512324A (en) |
| KR (1) | KR970701834A (en) |
| CN (1) | CN1077248C (en) |
| BR (1) | BR9605303A (en) |
| DE (2) | DE19504565A1 (en) |
| WO (1) | WO1996024773A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19833130A1 (en) * | 1998-07-23 | 2000-01-27 | Bosch Gmbh Robert | Apparatus for conveying fuel from a storage container to an I.C. engine has an opening on a level above the base of a section to form a storage chamber |
| DE19835157C1 (en) * | 1998-08-04 | 2000-03-02 | Daimler Chrysler Ag | Suction jet pump |
| JP3638818B2 (en) * | 1999-05-20 | 2005-04-13 | 愛三工業株式会社 | Wesco type pump |
| DE19950289A1 (en) | 1999-10-19 | 2001-04-26 | Bosch Gmbh Robert | Fuel supply unit for IC engine of motor vehicle with feed container in storage tank of vehicle from which delivery set sucks fuel and delivers this to engine and with return line |
| DE10119553B4 (en) * | 2001-04-21 | 2005-06-23 | Siemens Ag | Suction jet pump and method for producing a nozzle for a suction jet pump |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3223140A (en) * | 1964-01-16 | 1965-12-14 | Oliver R Jones | Self-controlled fuel system |
| GB1109232A (en) * | 1965-02-13 | 1968-04-10 | Taylor & Osborne Ltd | Improvements relating to venturi extractors |
| GB2196914A (en) * | 1986-09-25 | 1988-05-11 | Nissan Motor | Fuel transfer apparatus |
| GB2271327A (en) * | 1992-10-10 | 1994-04-13 | Ford Motor Co | A fuel tank reservoir. |
| JP3067058B2 (en) * | 1992-03-27 | 2000-07-17 | 株式会社クラレ | Non-woven fabric for resin reinforcement |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE904984C (en) * | 1943-08-18 | 1954-02-25 | Eberspaecher J | Sound-insulated injector with pulsating gas or liquid propellant flow |
| JP2820727B2 (en) * | 1989-08-07 | 1998-11-05 | 株式会社デンソー | Vehicle fuel supply system |
| DE9116296U1 (en) * | 1991-04-08 | 1992-07-23 | Vdo Adolf Schindling Ag, 6000 Frankfurt | Fuel tank system |
| DE4336060C2 (en) * | 1993-10-22 | 2003-06-26 | Siemens Ag | Fuel delivery device for an internal combustion engine |
-
1995
- 1995-02-11 DE DE19504565A patent/DE19504565A1/en not_active Withdrawn
-
1996
- 1996-01-11 EP EP96900505A patent/EP0772745B1/en not_active Expired - Lifetime
- 1996-01-11 DE DE59601703T patent/DE59601703D1/en not_active Expired - Fee Related
- 1996-01-11 BR BR9605303A patent/BR9605303A/en not_active IP Right Cessation
- 1996-01-11 KR KR1019960705184A patent/KR970701834A/en not_active Application Discontinuation
- 1996-01-11 CN CN96190003A patent/CN1077248C/en not_active Expired - Fee Related
- 1996-01-11 JP JP8523875A patent/JPH09512324A/en active Pending
- 1996-01-11 WO PCT/DE1996/000029 patent/WO1996024773A1/en active IP Right Grant
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3223140A (en) * | 1964-01-16 | 1965-12-14 | Oliver R Jones | Self-controlled fuel system |
| GB1109232A (en) * | 1965-02-13 | 1968-04-10 | Taylor & Osborne Ltd | Improvements relating to venturi extractors |
| GB2196914A (en) * | 1986-09-25 | 1988-05-11 | Nissan Motor | Fuel transfer apparatus |
| JP3067058B2 (en) * | 1992-03-27 | 2000-07-17 | 株式会社クラレ | Non-woven fabric for resin reinforcement |
| GB2271327A (en) * | 1992-10-10 | 1994-04-13 | Ford Motor Co | A fuel tank reservoir. |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09512324A (en) | 1997-12-09 |
| EP0772745A1 (en) | 1997-05-14 |
| WO1996024773A1 (en) | 1996-08-15 |
| BR9605303A (en) | 1997-10-14 |
| KR970701834A (en) | 1997-04-12 |
| DE19504565A1 (en) | 1996-08-14 |
| EP0772745B1 (en) | 1999-04-21 |
| CN1145660A (en) | 1997-03-19 |
| DE59601703D1 (en) | 1999-05-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6425378B1 (en) | Device for delivering fuel from a storage tank to the internal combustion engine of a motor vehicle | |
| US4842006A (en) | Dashpot for fuel tanks | |
| US4911134A (en) | Arrangement for ejecting fuel in a vehicle fuel tank | |
| US6598594B2 (en) | Fuel supply apparatus | |
| US6098600A (en) | Fuel supply system | |
| US4886031A (en) | Dashpot with filter for fuel tanks | |
| US7651036B2 (en) | Three jet island fluidic oscillator | |
| US7080632B2 (en) | Apparatus for pumping fuel | |
| CN101094723B (en) | Improved cold-performance fluidic oscillator | |
| US6575705B2 (en) | Jet pump throat pipe having a bent discharge end | |
| CN1077248C (en) | Sucking jet pump | |
| DE4400958C1 (en) | Sucking jet pump | |
| EP0889244A3 (en) | Ejector | |
| EP1527269B1 (en) | Suction jet pump | |
| US6705298B2 (en) | Fuel pump module | |
| US5294056A (en) | Fuel-gas mixture injector with a downstream mixing conduit | |
| US8096780B2 (en) | Single piece dual jet pump and fuel system using it | |
| CN101312789B (en) | Multiple discharge orifice spray nozzle | |
| US4743408A (en) | Device for introducing a gas into liquid | |
| DE4301761C2 (en) | Tank system for liquid fuel, in particular for internal combustion engines in motor vehicles | |
| CN101146992B (en) | Delivery unit | |
| US20080273993A1 (en) | Ejector Tube of an Ejector Pump | |
| US20140239097A1 (en) | Venturi fluid pump with outlet flow controller | |
| GB2340184A (en) | Suction-jet pump having an inflow orifice | |
| EP0602762A1 (en) | Apparatus for dissolving gas in a liquid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |