DE102005049277A1 - Mixing tube for use in ejector pump, has pipeline section attached to outlet end, and connected with outlet end in single-piece, where outlet end has inner outline which is designed as diffuser - Google Patents
Mixing tube for use in ejector pump, has pipeline section attached to outlet end, and connected with outlet end in single-piece, where outlet end has inner outline which is designed as diffuser Download PDFInfo
- Publication number
- DE102005049277A1 DE102005049277A1 DE102005049277A DE102005049277A DE102005049277A1 DE 102005049277 A1 DE102005049277 A1 DE 102005049277A1 DE 102005049277 A DE102005049277 A DE 102005049277A DE 102005049277 A DE102005049277 A DE 102005049277A DE 102005049277 A1 DE102005049277 A1 DE 102005049277A1
- Authority
- DE
- Germany
- Prior art keywords
- outlet end
- mixing tube
- line section
- diffuser
- designed
- 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- Withdrawn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
Classifications
-
- 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
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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
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
- F04F5/46—Arrangements of nozzles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/494—Fluidic or fluid actuated device making
Abstract
Description
Gegenstand der Erfindung ist ein Mischrohr einer Saugstrahlpumpe mit einem Einlassbereich, einem Mischbereich und einem Auslassende, über das das zu fördernde Medium das Mischrohr verlässt. Saugstrahlpumpen finden Verwendung zur Kraftstoffförderung in Kraftstoffbehältern.object The invention is a mixing tube of a suction jet pump with a Inlet area, a mixing area and an outlet end over which the to be promoted Medium leaves the mixing tube. eductors find use for fuel delivery in fuel tanks.
Derartige Mischrohre sind Bestandteil von Saugstrahlpumpen, in denen sie in axialer Ausrichtung zu einer Treibdüse eingesetzt sind. Ein über eine Treibmittelleitung der Treibdüse zugeführtes Treibmittel tritt unter hohem Druck aus der Treibdüse aus und in den Einlassbereich des Mischrohres ein. Aufgrund der Geschwindigkeit des Treibmittelstrahls wird zwischen Treibdüse und Mischrohr ein Unterdruck erzeugt, der zum Ansaugen des zu fördernden Mediums in das Mischrohr genutzt wird. Über das Auslassende treten das Treibmittel und das zu fördernde Medium aus der Saugstrahlpumpe aus. Um das zu fördernde Medium an den gewünschten Ort zu transportieren, ist das Auslassende mit einer Leitung oder einem Leitungsabschnitt verbunden. Zum Verbinden des Leitungsabschnitts mit dem Auslassende des Mischrohres wird der Leitungsabschnitt auf das Auslassende aufgeschoben, wobei das Auslassende am Außenumfang einer Verbindungsgeometrie, vorzugsweise ein Tannenbaumprofil, aufweist, um ein unbeabsichtigtes Lösen des Leitungsabschnitts vom Auslassende zu verhindern. Nachteilig ist der Montageschritt zum Verbinden des Leitungsabschnitts mit dem Auslassende. Neben dem zeitlichen Aufwand sind auch relativ hohe Montagekräfte notwendig, um einen sicheren Sitz des Leitungsendes auf dem Auslassende ohne zusätzliche Sicherungsmittel, zum Beispiel Schlauchklemmen, zu gewährleisten.such Mixing tubes are part of suction jet pumps, in which they are in axial alignment are used to a motive nozzle. One over one Treibmittelleitung the motive nozzle supplied propellant exits the motive nozzle under high pressure and into the inlet area of the mixing tube. Due to the speed of the propellant jet is between motive nozzle And mixing tube generates a negative pressure, which is used to suck the medium to be pumped is used in the mixing tube. about the outlet end enter the propellant and the to be pumped Medium out of the suction jet pump. To the medium to be conveyed to the desired Place to transport is the outlet end with a pipe or connected to a line section. For connecting the pipe section with the outlet end of the mixing tube, the line section on the outlet end deferred, with the outlet end at the outer periphery a connection geometry, preferably a Christmas tree profile, to unintentional release of the line section from the outlet end. adversely is the mounting step for connecting the line section with the outlet end. In addition to the time required are also relative high assembly forces necessary to ensure a secure fit of the line end on the outlet end without additional securing means, For example, hose clamps to ensure.
Der Erfindung liegt daher die Aufgabe zugrunde, ein Mischrohr einer Saugstrahlpumpe zu schaffen, welches eine einfachere Montage zu geringen Kosten ermöglicht.Of the Invention is therefore based on the object, a mixing tube a To create suction jet pump, which simplifies installation low cost.
Erfindungsgemäß wird die Aufgabe dadurch gelöst, dass sich an das Auslassende ein Leitungsabschnitt anschließt und dass der Leitungsabschnitt einteilig mit dem Auslassende des Mischrohres verbunden ist.According to the invention Task solved by in that a line section connects to the outlet end and that the conduit section is integral with the outlet end of the mixing tube connected is.
Mit der einteiligen Ausbildung des Auslassendes des Mischrohres und einem Leitungsabschnitt entfällt die nachträgliche Montage der Leitungen mit dem Mischrohr einer Saugstrahlpumpe. Verbindungsgeometrien am Auslassende des Mischrohres und an dem Leitungsabschnitt sind aufgrund der einteiligen Ausführung nicht erforderlich. Damit verringern sich die Herstellkosten im erheblichen Maße, da sich zum einem der Materialeinsatz verringert und zum anderen entfallen die Spritzgusswerkzeuge, wenn die Mischrohrgeometrie in dem Werkzeug für den Leitungsabschnitt enthalten ist.With the one-piece design of the outlet end of the mixing tube and a line section deleted the subsequent Assembly of the lines with the mixing tube of a suction jet pump. connection geometries at the outlet end of the mixing tube and at the line section due to the one-piece design not mandatory. This reduces the manufacturing costs in the considerable extent, since For one reduces the use of materials and accounts for another the injection molds when the mixing tube geometry in the tool for the Line section is included.
In einer vorteilhaften Ausgestaltung ist der Leitungsabschnitt als Wellrohr ausgebildet. Dies ist insbesondere dann von Vorteil, wenn die sich an die Saugstrahlpumpe anschließende Leitung mit kleinen Biegeradien verlegt werden muss.In an advantageous embodiment, the line section as Corrugated pipe formed. This is particularly advantageous if the adjoining the suction jet pump line with small bending radii must be laid.
Ein guter Übergang zwischen dem Auslassende des Mischrohres und der sich anschließenden Leitungen wird in einer anderen Ausgestaltung mit einem als Glattrohr ausgebildeten Leitungsabschnitt erreicht.One good transition between the outlet end of the mixing tube and the subsequent lines is designed in another embodiment with a smooth tube Line section reached.
Die Fertigung des Mischrohres und des Leitungsabschnitts ist besonders kostengünstig, wenn das Auslassende und der Leitungsabschnitt aus demselben Werkstoff, beispielsweise Polyoxymetylen (POM) oder Polyamid (PA) bestehen.The Production of the mixing tube and the line section is special cost-effective, if the outlet end and the conduit section are made of the same material, For example, polyoxymethylene (POM) or polyamide (PA) exist.
In Abhängigkeit der Anforderungen an die sich an die Saugstrahlpumpe anschließende Leitung kann es vorteilhaft sein, wenn das Auslassende des Mischrohres und der Leitungsabschnitt aus unterschiedlichen Werkstoffen bestehen. Ein derart gestaltetes Mischrohr mit einem Leitungsabschnitt lässt sich im Zwei-Komponenten-Spritzgussverfahren mit geringem Aufwand herstellen.In dependence the requirements of the subsequent to the ejector jet line can it may be advantageous if the outlet end of the mixing tube and the Line section consist of different materials. One thus designed mixing tube with a line section can be in two-component injection molding process with little effort.
In einer anderen vorteilhaften Ausgestaltung weist das Auslassende einer als Diffusor ausgebildetes Innenkontur auf.In In another advantageous embodiment, the outlet end a trained as a diffuser inner contour.
Verwirbelungen am Mischrohrende lassen sich gemäß einer weiteren vorteilhaften Ausgestaltung dadurch vermeiden, dass der Diffusor stetig in den Innendurchmesser des Leitungsabschnitts übergeht.turbulence at the end of the mixing tube can be according to a avoid further advantageous embodiment in that the Diffuser steadily merges into the inner diameter of the line section.
An mehreren Ausführungsbeispielen wird die Erfindung näher erläutert. Es zeigenAt several embodiments the invention will be closer explained. Show it
Die
in
Claims (7)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005049277A DE102005049277A1 (en) | 2005-09-28 | 2005-10-14 | Mixing tube for use in ejector pump, has pipeline section attached to outlet end, and connected with outlet end in single-piece, where outlet end has inner outline which is designed as diffuser |
US12/067,202 US20080273993A1 (en) | 2005-09-28 | 2006-09-19 | Ejector Tube of an Ejector Pump |
JP2008531688A JP2009509086A (en) | 2005-09-28 | 2006-09-19 | Suction jet pump mixing tube |
PCT/EP2006/066499 WO2007036459A1 (en) | 2005-09-28 | 2006-09-19 | Ejector tube of an ejector pump |
EP06793635A EP1963684A1 (en) | 2005-09-28 | 2006-09-19 | Ejector tube of an ejector pump |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005046449 | 2005-09-28 | ||
DE102005046449.1 | 2005-09-28 | ||
DE102005049277A DE102005049277A1 (en) | 2005-09-28 | 2005-10-14 | Mixing tube for use in ejector pump, has pipeline section attached to outlet end, and connected with outlet end in single-piece, where outlet end has inner outline which is designed as diffuser |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102005049277A1 true DE102005049277A1 (en) | 2007-03-29 |
Family
ID=37228100
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102005049277A Withdrawn DE102005049277A1 (en) | 2005-09-28 | 2005-10-14 | Mixing tube for use in ejector pump, has pipeline section attached to outlet end, and connected with outlet end in single-piece, where outlet end has inner outline which is designed as diffuser |
Country Status (5)
Country | Link |
---|---|
US (1) | US20080273993A1 (en) |
EP (1) | EP1963684A1 (en) |
JP (1) | JP2009509086A (en) |
DE (1) | DE102005049277A1 (en) |
WO (1) | WO2007036459A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2509183A (en) * | 2012-12-21 | 2014-06-25 | Xerex Ab | Vacuum ejector with tripped diverging exit flow nozzle |
RU2630952C1 (en) * | 2016-05-27 | 2017-09-14 | Акционерное Общество "Ордена Ленина Научно-Исследовательский И Конструкторский Институт Энерготехники Имени Н.А. Доллежаля" | Jet heat pump |
RU2634654C1 (en) * | 2016-12-26 | 2017-11-02 | Акционерное Общество "Ордена Ленина Научно-Исследовательский И Конструкторский Институт Энерготехники Имени Н.А. Доллежаля" | Jet-type heat pump |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4400958C1 (en) * | 1994-01-14 | 1995-04-06 | Bayerische Motoren Werke Ag | Sucking jet pump |
DE4400919A1 (en) * | 1994-01-14 | 1995-07-20 | Pierburg Gmbh & Co Kg | Fuel suction from two chamber saddle tank |
DE19714858C1 (en) * | 1997-04-10 | 1998-11-19 | Kayser Automotive Systems Gmbh | Suction jet pump |
DE4338504C2 (en) * | 1993-11-11 | 2002-07-04 | Siemens Ag | Suction jet pump designed to deliver fuel from a fuel chamber |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3500718A1 (en) * | 1985-01-11 | 1986-07-17 | Robert Bosch Gmbh, 7000 Stuttgart | Arrangement for feeding fuel from a storage tank by way of a feedline to the internal combustion engine of a motor vehicle |
FR2720472B1 (en) * | 1994-05-31 | 1996-07-12 | Hutchinson | Fuel transport hose. |
US5611673A (en) * | 1994-07-19 | 1997-03-18 | Shin-Ei Kabushiki Kaisha | Vacuum jet pump for recovering a mixed fluid of gas and liquid condensates from steam-using apparatus |
DE19618454B4 (en) * | 1996-05-08 | 2005-01-27 | Robert Bosch Gmbh | Fuel delivery device of a motor vehicle |
DE10119553B4 (en) * | 2001-04-21 | 2005-06-23 | Siemens Ag | Suction jet pump and method for producing a nozzle for a suction jet pump |
DE10215652A1 (en) * | 2002-04-09 | 2003-11-06 | Siemens Ag | Fuel delivery unit for a motor vehicle |
JP2004232513A (en) * | 2003-01-29 | 2004-08-19 | Hitachi Unisia Automotive Ltd | Fuel supply system and fuel transfer tube for internal combustion engine |
DE10342081B4 (en) * | 2003-09-10 | 2006-08-10 | Siemens Ag | Fuel tank for a motor vehicle |
-
2005
- 2005-10-14 DE DE102005049277A patent/DE102005049277A1/en not_active Withdrawn
-
2006
- 2006-09-19 WO PCT/EP2006/066499 patent/WO2007036459A1/en active Application Filing
- 2006-09-19 JP JP2008531688A patent/JP2009509086A/en active Pending
- 2006-09-19 US US12/067,202 patent/US20080273993A1/en not_active Abandoned
- 2006-09-19 EP EP06793635A patent/EP1963684A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4338504C2 (en) * | 1993-11-11 | 2002-07-04 | Siemens Ag | Suction jet pump designed to deliver fuel from a fuel chamber |
DE4400958C1 (en) * | 1994-01-14 | 1995-04-06 | Bayerische Motoren Werke Ag | Sucking jet pump |
DE4400919A1 (en) * | 1994-01-14 | 1995-07-20 | Pierburg Gmbh & Co Kg | Fuel suction from two chamber saddle tank |
DE19714858C1 (en) * | 1997-04-10 | 1998-11-19 | Kayser Automotive Systems Gmbh | Suction jet pump |
Also Published As
Publication number | Publication date |
---|---|
WO2007036459A1 (en) | 2007-04-05 |
EP1963684A1 (en) | 2008-09-03 |
JP2009509086A (en) | 2009-03-05 |
US20080273993A1 (en) | 2008-11-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8127 | New person/name/address of the applicant |
Owner name: CONTINENTAL AUTOMOTIVE GMBH, 30165 HANNOVER, DE |
|
8139 | Disposal/non-payment of the annual fee |