EP1378670A2 - Saugstrahlpumpe - Google Patents
Saugstrahlpumpe Download PDFInfo
- Publication number
- EP1378670A2 EP1378670A2 EP03013789A EP03013789A EP1378670A2 EP 1378670 A2 EP1378670 A2 EP 1378670A2 EP 03013789 A EP03013789 A EP 03013789A EP 03013789 A EP03013789 A EP 03013789A EP 1378670 A2 EP1378670 A2 EP 1378670A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel
- diffuser
- mixing tube
- housing
- jet pump
- 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.)
- Withdrawn
Links
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
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- 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
- F04F5/02—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid
- F04F5/10—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid displacing liquids, e.g. containing solids, or liquids and elastic fluids
-
- 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
-
- 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
- F04F5/464—Arrangements of nozzles with inversion of the direction of flow
Definitions
- the invention relates to a suction jet pump, in particular for the delivery of fuel to a fuel delivery unit of an internal combustion engine or into one Storage pot of a fuel storage container, the suction jet pump being a housing with an intake line connection, a connecting piece for a propellant line, a jet nozzle and one connected to the housing Mixing tube with a diffuser.
- suction jet pumps in fuel tanks of internal combustion engines are generally known. They are used to get fuel from deeper or lower more distant regions of a fuel tank to the fuel delivery unit or to deliver to a storage pot or to get fuel from a saddle tank half to promote others. To do this, fuel flows through a fuel line to one Driving jet nozzle from which the fuel exits under pressure into a mixing chamber. There, the propellant jet creates a vacuum, causing fuel to flow through an intake pipe is sucked in and promoted. In addition, the driving beam also transmits kinetic Energy in the mixing tube and in the adjoining diffuser on the suctioned Quantity.
- suction jet pumps are in the most known designs in the field the bottom of the fuel tank, below the reserve fuel level in the fuel tank, so that the mixing chamber and intake pipe and the mixing tube are continuously flooded and never propel the jet against air must, but can always deliver against fuel. Because with this type of suction jet pump long drive volume and long total volume lines and mostly an additional holder is also required if the suction point is far from the Propellant pressure source and the storage pot is removed, such suction jet pumps then relatively complex and expensive.
- the mixing tube with the subsequent one Diffuser opens into a basin, which essentially the mixing tube and the diffuser surrounds, but is spaced from them and which has an overflow, the geodetically above an end of the Diffuser is arranged.
- the fuel runs over the overflow after a short time of the pelvis, falls to the bottom of the storage pot, where there is the fuel pump is available and then partly serves again as a propellant. Since the in that Fuel flowing after a short time the end of the mixing tube or Closes diffuser, the gas flows back into a mixing chamber Pump completely prevented, so that a high vacuum is generated in the suction line becomes.
- the suction line is gas-free after a short time and with the suctioned Fuel filled so that fuel is now delivered in sufficient quantities can.
- the amount of fuel available for restarting enlarged by introducing the small pelvis, since only in the pelvis the Fuel is drawn to the level below the diffuser, the fuel level when switching off the fuel delivery unit in the storage pot, however, not up to the diffuser end only sinks to the overflow edge of the basin.
- the required overflow basin can either be in one piece with a lid be formed of the storage pot or in one piece with the storage pot itself be trained. Both embodiments result in additional assembly effort and prevents the need to manufacture additional components, thereby again costs can be saved.
- the propellant line is usually the Pump housing and the mixing tube arranged on a common central axis.
- the propellant jet flows through the Propulsion jet nozzle at an angle to and against a central axis of the housing a wall of the mixing tube, which means the gas entrainment and thus the ability to deliver against air is improved again.
- Figure 1 shows a side view of an inventive suction jet pump with vertical jet in a sectional view.
- Figure 2 shows a side view of a suction jet pump according to the invention with a driving jet inclined at an angle to the vertical axis Presentation.
- the suction jet pump according to the invention shown in Figure 1 consists of a Propellant flow line 1 at its end located in the direction of flow
- Driving jet nozzle opening 2 is an aperture-like opening with a small Ratio of aperture length to aperture diameter l / d through which the blowing agent is pressed.
- a driving jet nozzle inlet 3 is conical here in the direction of flow Constriction 3 of the propellant line 1 is formed.
- the jet nozzle inlet 3 can also omitted, that is, the jet nozzle opening 2 can immediately in one the level 1 connecting the propellant flow line perpendicular to a central axis M are located.
- the propellant line 1 is in one piece with a housing 4 which closes Cover 5 formed, which is welded onto the housing 4 or is glued and this closes fluid-tight.
- the housing 4 of the suction jet pump contains a mixing chamber 6, a suction line 7 and a mixing tube 8.
- Die Propellant line 1, the housing 4 or the mixing chamber 6 and the mixing tube 8 and the jet nozzle opening 2 are essentially in this embodiment arranged symmetrically to their common central axis M: below the Propulsion jet nozzle 2 tapers the cross section of the mixing chamber 6 to the Diameter of the mixing tube 8, the inlet end 9 is attached here.
- On one Outflow end 10 of the mixing tube 8 is followed by an expanding section which Diffuser 11.
- the suction line 7 is arranged perpendicular to the central axis M and breaks through a wall of the housing 4 in an area below the cover 5 and above the taper of the mixing chamber 6 and is therefore essentially short arranged above the jet nozzle opening 2.
- the diffuser 11 opens into one Basin 12, which from the mixing tube 8 and the adjoining diffuser 11th is spaced and surrounds them in their lower and side areas.
- the Bekken 12 has an overflow 13, which is above the outlet end of the diffuser 11 is arranged.
- This overflow basin 12 is in one piece with a storage pot lid 14 of a storage pot 15 can also be formed in one piece with the Storage pot 15 itself can be formed, but can also be an additional component on Housing 4 be connected.
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)
Abstract
Description
Claims (4)
- Saugstrahlpumpe, insbesondere zur Förderung von Kraftstoff zu einer Kraftstoffördereinheit einer Verbrennungskraftmaschine oder in einen Speichertopf eines Kraftstoffvorratsbehälters, wobei die Saugstrahlpumpe ein Gehäuse mit einem Ansaugleitungsanschluß, einen Anschlußstutzen für eine Treibmengenleitung, eine Treibstrahldüse und ein an das Gehäuse anschließendes Mischrohr mit einem Diffusor aufweist, dadurch gekennzeichnet, daß das Mischrohr (8) mit dem anschließenden Diffusor (11) in ein Becken (12) mündet, welches das Mischrohr (8) und den Diffusor (11) im wesentlichen umgibt, jedoch von diesen beabstandet ist und welches einen Überlauf (13) aufweist, der geodätisch oberhalb eines in Strömungsrichtung gelagerten Auslaufendes des Diffusors (11) angeordnet ist.
- Saugstrahlpumpe nach Anspruch 1, dadurch gekennzeichnet, daß das Bekken (12) einstückig mit einem Deckel (14) des Speichertopfes (15) ausgebildet ist.
- Saugstrahlpumpe nach Anspruch 1, dadurch gekennzeichnet, daß das Bekken (12) einstückig mit dem Speichertopf (15) ausgebildet ist.
- Saugstrahlpumpe nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Treibstrahl durch die Treibstrahldüsenöffnüng (2) unter einem Winkel zu einer Mittelachse (M) des Gehäuses (5) und gegen eine Wandung (16) des Mischrohres (8) strömt.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2002129801 DE10229801A1 (de) | 2002-07-03 | 2002-07-03 | Saugstrahlpumpe |
DE10229801 | 2002-07-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1378670A2 true EP1378670A2 (de) | 2004-01-07 |
EP1378670A3 EP1378670A3 (de) | 2004-12-29 |
Family
ID=29719445
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03013789A Withdrawn EP1378670A3 (de) | 2002-07-03 | 2003-06-18 | Saugstrahlpumpe |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1378670A3 (de) |
DE (1) | DE10229801A1 (de) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2410529A (en) * | 2004-01-27 | 2005-08-03 | Visteon Global Tech Inc | Jet pump with sleeve partially covering outlet duct |
WO2006100129A1 (de) * | 2005-03-24 | 2006-09-28 | Siemens Vdo Automotive Ag | Saugstrahlpumpe |
US7874811B2 (en) * | 2002-08-09 | 2011-01-25 | Siemens Aktiengesellschaft | Suction jet pump |
US8387658B2 (en) | 2005-03-24 | 2013-03-05 | Continental Automotive Gmbh | Delivery unit and jet suction pump |
WO2017186377A1 (de) * | 2016-04-29 | 2017-11-02 | Robert Bosch Gmbh | Saugstrahlpumpe |
US10975814B1 (en) | 2018-04-09 | 2021-04-13 | Aeromotive, Inc. | Apparatus and method for modifying a fuel tank to accept an in-tank fuel pump |
US10995711B1 (en) | 2018-04-09 | 2021-05-04 | Aeromotive, Inc. | Apparatus and method for modifying a fuel tank to accept an in-tank fuel pump |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004010362B4 (de) * | 2004-03-03 | 2010-11-25 | Austriamicrosystems Ag | Sensor, insbesondere Magnetfeldsensor, mit Störsignal-Kompensation und Verfahren zur Störsignal-Kompensation eines Sensors |
DE102008026734A1 (de) * | 2008-06-04 | 2009-12-10 | Continental Aktiengesellschaft | Pumpeinrichtung zur Förderung von Kraftstoff in einem Kraftstoffbehälter |
DE102008044172A1 (de) | 2008-11-28 | 2010-06-02 | Robert Bosch Gmbh | Hydraulisches Aggregat |
DE102009045436A1 (de) | 2008-12-12 | 2010-06-17 | Robert Bosch Gmbh | Vorrichtung zum Fördern eines Fluids |
DE102013203942B4 (de) * | 2013-03-07 | 2014-12-04 | Continental Automotive Gmbh | In einem Kraftstoffbehälter eines Kraftfahrzeugs angeordnete Saugstrahlpumpe |
US10662911B1 (en) * | 2019-02-15 | 2020-05-26 | Delphi Technologies Ip Limited | Fuel transfer system including a fuel jet pump device and utilized in a partitioned fuel tank |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2711338A1 (fr) * | 1993-10-19 | 1995-04-28 | Peugeot | Dispositif de transfert de carburant depuis une poche annexe à la poche principale d'un réservoir de carburant. |
FR2753658B1 (fr) * | 1996-09-26 | 1998-12-11 | Dispositif de puisage de carburant pour reservoir de vehicules automobiles | |
DE19855433B4 (de) * | 1998-11-27 | 2005-10-06 | Siemens Ag | Saugstrahlpumpe |
DE19961923A1 (de) * | 1999-12-22 | 2001-07-05 | Bosch Gmbh Robert | Kraftstofffördermodul für Kraftfahrzeuge |
-
2002
- 2002-07-03 DE DE2002129801 patent/DE10229801A1/de not_active Withdrawn
-
2003
- 2003-06-18 EP EP03013789A patent/EP1378670A3/de not_active Withdrawn
Non-Patent Citations (1)
Title |
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None |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7874811B2 (en) * | 2002-08-09 | 2011-01-25 | Siemens Aktiengesellschaft | Suction jet pump |
GB2410529A (en) * | 2004-01-27 | 2005-08-03 | Visteon Global Tech Inc | Jet pump with sleeve partially covering outlet duct |
GB2410529B (en) * | 2004-01-27 | 2006-07-12 | Visteon Global Tech Inc | A jet pump with improved start-up properties and fuel delivery systems equipped with such a jet pump |
WO2006100129A1 (de) * | 2005-03-24 | 2006-09-28 | Siemens Vdo Automotive Ag | Saugstrahlpumpe |
US8387658B2 (en) | 2005-03-24 | 2013-03-05 | Continental Automotive Gmbh | Delivery unit and jet suction pump |
US8408880B2 (en) | 2005-03-24 | 2013-04-02 | Continental Automotive Gmbh | Jet suction pump |
WO2017186377A1 (de) * | 2016-04-29 | 2017-11-02 | Robert Bosch Gmbh | Saugstrahlpumpe |
US10975814B1 (en) | 2018-04-09 | 2021-04-13 | Aeromotive, Inc. | Apparatus and method for modifying a fuel tank to accept an in-tank fuel pump |
US10995711B1 (en) | 2018-04-09 | 2021-05-04 | Aeromotive, Inc. | Apparatus and method for modifying a fuel tank to accept an in-tank fuel pump |
Also Published As
Publication number | Publication date |
---|---|
EP1378670A3 (de) | 2004-12-29 |
DE10229801A1 (de) | 2004-01-22 |
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Effective date: 20070111 |
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RIC1 | Information provided on ipc code assigned before grant |
Ipc: F02M 37/02 20060101ALI20110816BHEP Ipc: F04F 5/46 20060101ALI20110816BHEP Ipc: F04F 5/10 20060101AFI20110816BHEP |
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Effective date: 20120914 |