EP2417345A1 - Vorrichtung zum fördern von kraftstoff - Google Patents
Vorrichtung zum fördern von kraftstoffInfo
- Publication number
- EP2417345A1 EP2417345A1 EP10708518A EP10708518A EP2417345A1 EP 2417345 A1 EP2417345 A1 EP 2417345A1 EP 10708518 A EP10708518 A EP 10708518A EP 10708518 A EP10708518 A EP 10708518A EP 2417345 A1 EP2417345 A1 EP 2417345A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mixing channel
- mixer duct
- suction
- nozzle
- recess
- 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.)
- Granted
Links
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
- F02M37/08—Feeding by means of driven pumps electrically driven
- F02M37/10—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir
- F02M37/106—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir the pump being installed in a sub-tank
-
- 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
- F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
- F02M37/0023—Valves in the fuel supply and return system
- F02M37/0029—Pressure regulator in the low pressure fuel system
-
- 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
- F02M37/0076—Details of the fuel feeding system related to the fuel tank
- F02M37/0088—Multiple separate fuel tanks or tanks being at least partially partitioned
-
- 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
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/85978—With pump
- Y10T137/86075—And jet-aspiration type pump
Definitions
- the invention relates to a device for conveying fuel according to the preamble of the main claim.
- Beam of the nozzle meets at substantially unfilled mixing channel and is at least partially returned to the mixing channel. It has been found that the propellant jet tends, in spite of the baffle, to throw out the liquid column standing in the mixing channel. As soon as the liquid level in the storage pot has dropped below the outlet of the mixing channel, fuel can no longer flow from above into the mixing channel, so that the mixing channel can be unfilled after the suction jet pump has been turned off. When the suction jet pump is restarted, an unsatisfactorily high delay then occurs until the suction jet pump begins to suck in, since the volume of the jet of propulsion first has to fill the mixing channel in order to build up a negative pressure and an intake capacity.
- a arranged in a fuel tank tank device which has a arranged in a storage tank fuel delivery pump and two Saugstrahlpumpen.
- the fuel tank is separated by a saddle in two areas, wherein in one area of the storage pot with the fuel delivery pump and the first suction jet pump and in the other area, the second suction jet pump is provided.
- the second suction jet pump is provided for the second suction jet pump an additional treble line is required, which must be laid consuming in the fuel tank saddle.
- US 2002/083983 A1 discloses a device arranged in a fuel saddle tank, which device has a fuel feed pump arranged in a storage pot and two suction jet pumps. Both suction jet pumps are in the storage pot arranged, wherein the first suction jet pump sucks from the immediate vicinity of the storage pot and the second suction jet pump from a region of the fuel tank tank beyond the saddle.
- the second suction jet pump has an unsatisfactory starting time until the onset of suction because of a lack of baffle.
- the device according to the invention with the characterizing features of the main claim has the advantage that a squeezing out of the liquid column of the mixing channel is avoided by the propulsion jet of the suction jet pump by an additional volume is formed by a stepped extension of the mixing channel at the outlet of the mixing channel.
- an additional hydrostatic pressure is provided, which prevents empty conveying of the mixing channel by the propulsion jet.
- the starting time of the suction jet pump until the beginning of the suction is thus approximately the same for all operating states.
- a continuous intake for all operating conditions is ensured.
- the extension of the mixing channel in the additional volume in particular a conical enlargement, allows a better capture and return of the jet of the nozzle in the mixing channel.
- the baffle means has a depression, recess, receptacle or skirt into which the jet of the nozzle strikes, whereby the jet is guided by the baffle back into the mixing channel.
- the recess, recess, receptacle or skirt has an input facing the mixing channel, wherein the impact means extends with its input into the additional volume. In this way it is achieved that less liquid is lost by spraying out of the mixing channel.
- the drawing shows in section a device for conveying fuel with a suction jet pump according to the invention.
- the device for conveying fuel is arranged in a fuel tank 1 and conveys by means of a delivery unit 2, for example a fuel pump, fuel from the fuel tank 1 druckerhöht via a pressure line 3 to an internal combustion engine 4.
- the delivery unit 2 is arranged in a storage pot 5, the the delivery unit 2 holds sufficient fuel so that it can suck in fuel even at low levels in the fuel tank 1 and when accelerating, braking, cornering and / or climbing.
- the storage tank 5 has a pot bottom 6. From the pressure line 3 of the device branches off a tether 9, which drives a suction jet pump 10 for active filling of the storage cup 5.
- a pressure control valve 12 may be provided, which can only 3 fuel flow from the pressure line 3 into the tapping line 9 from a predetermined pressure in the pressure line 3.
- the pressure regulating valve 12 can be replaced by a throttle element 12, which limits the outflow in the treble 9 volume flow.
- a check valve 11 is provided in the pressure line 3, which prevents backflow of fuel and maintains the pressure in the pressure line 3 downstream of the check valve 11 after switching off the delivery unit 2.
- the tapping line 9 can also be supplied with fuel by a return, not shown, of the internal combustion engine 4 or in any other way.
- a pressure relief valve 13 may be provided, which at a predetermined excess pressure in the pressure line 3 in the downstream section of the check valve 11 can escape fuel from the pressure line 3.
- the tapping line 9 opens via an example narrowed jet outlet 14, which may form a nozzle in a suction chamber 15 of the suction jet pump 10 to the suction chamber 15 is followed by a mixing channel 16, which is arranged in an imaginary extension of the beam exit 14, such that a From the jet outlet 14 of the drive line 9 exiting fluid jet via the suction chamber 15 reaches the mixing channel 16 in a straight line.
- the mixing channel 16 extends transversely, for example vertically to the bottom of the pot 6.
- the vertical arrangement of the mixing channel 16 is more space for a streamlined design of the ejector 10, in particular at the end of the mixing channel 16 to - A -
- suction jet pump 10 via the drive line 9 and the beam output 14, a drive current is introduced jet-shaped into the suction chamber 15.
- the propulsion jet of the treble line 9 entrains surrounding fuel from the intake chamber 15 into the mixing channel 16, so that a delivery flow is established via the mixing channel 16 into the storage pot 5.
- the fuel can flow via a suction port 17 of the suction chamber 15 from the fuel tank 1 into the suction chamber 15.
- the suction chamber 15 is formed for example by a cup-shaped receptacle 18 on the bottom of the pot 6, in which the mixing channel 16 is inserted as a separate component. Between the inserted portion of the mixing channel 16 and the receptacle 18, for example, a sealing ring 19 is provided for sealing.
- a suction line 21 is connected, which leads into a remote from the storage tank 5 region of the fuel tank 1.
- the intake pipe 21 is guided, for example, over a saddle 1.1 of the fuel tank 1 and sucks fuel from a region which is separated from the saddle 1.1 by a portion of the fuel tank 1 in which the device according to the invention is arranged with the storage pot 5.
- the mixing channel 16 is arranged in the direction of the longitudinal extent of the storage pot 5, for example perpendicular to the pot bottom 6, and is held in the receptacle 18, wherein the pot lid 27 can fix the mixing channel 16 in the axial direction.
- a baffle 22 is arranged, against which the propulsion jet impinges with unfilled mixing channel 16 and is at least largely returned to the mixing channel 16.
- the invention provides that at the nozzle 14 remote from the output or end portion of the mixing channel 16, an additional volume or reservoir 25 is formed by a radial extension 26 of the mixing channel 16.
- an additional hydrostatic pressure is provided which prevents ejection of the fuel from the mixing channel 16.
- the extension of the mixing channel 16 takes place in the radial direction with respect to the longitudinal extent of the mixing channel 16.
- the wall of the additional volume 25 is angled relative to the wall of the adjacent remaining mixing channel 16 such that an angle between the two sections oc, the unequal is zero.
- the extension of the mixing channel 16 is for example stepped, stepped, shoulder-shaped, conical or similar.
- Below the additional volume 25 or upstream of the additional volume 25 may be provided as a diffuser executed section 30 of the mixing channel 16, which widens in the flow direction.
- the baffle 22 is designed like a cap or cap and covers the frontal output of the mixing channel 16 from.
- the baffle 22 is integrally formed according to the embodiment of a lid 27 of the storage pot 5, but may also be a separate part.
- the mixing channel 16 extends with its additional volume 25, for example, up to or close to an edge 5.1 of the storage pot 5, so that the highest possible hydrostatic pressure in the mixing channel 16 can be built.
- the baffle 22 has a recess, recess, receptacle or skirt 28 into which the jet of the nozzle 14 strikes, at least when the mixing channel 16 is empty.
- This depression, recess, receptacle or skirt 28 is, for example, cylindrical, channel-shaped, cup-shaped or blind-hole-shaped.
- the recess, recess, receptacle or skirt 28 has an input facing the mixing channel 16, wherein the baffle 22 extends with its input into the additional volume 25. That way
- the recess, recess, receptacle or skirt 28 of the baffle 22 is arranged, for example, concentric with the beam exit 14.
- the baffle 22 has at its end facing away from the entrance to a bottom 29, which may be, for example, conical, dome-shaped, partially spherical, curved or flat.
- the bottom 29 of the baffle 22 may be arranged perpendicular to the propulsion jet of the nozzle 14 or obliquely thereto.
- the additional volume 25 has at its upper end portion at least one circumferential opening 32 for the escape of fuel into the storage cup 5. Between the wall of the Additional volume 25 and the baffle 22 an annular gap 33 is formed so that fuel via the annular gap 33 and the at least one peripheral opening 32 can flow into the storage pot 5. For optimum efficiency, the flow cross-section in the annular gap 33 and the flow cross-section of all peripheral openings 32 are to be the same or larger than the flow cross-section at the outlet of the diffuser 30.
- a second suction jet pump not shown, which sucks fuel from the immediate vicinity of the storage pot 5 and promotes the storage pot 5.
- the mixing channel of this second suction jet pump can be arranged horizontally or vertically to the bottom of the pot 6 of the storage cup 5.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200910002299 DE102009002299A1 (de) | 2009-04-09 | 2009-04-09 | Vorrichtung zum Fördern von Kraftstoff |
| PCT/EP2010/052824 WO2010115668A1 (de) | 2009-04-09 | 2010-03-05 | Vorrichtung zum fördern von kraftstoff |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2417345A1 true EP2417345A1 (de) | 2012-02-15 |
| EP2417345B1 EP2417345B1 (de) | 2015-01-14 |
Family
ID=42199651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20100708518 Not-in-force EP2417345B1 (de) | 2009-04-09 | 2010-03-05 | Vorrichtung zum fördern von kraftstoff |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US8590563B2 (de) |
| EP (1) | EP2417345B1 (de) |
| CN (1) | CN102388215B (de) |
| DE (1) | DE102009002299A1 (de) |
| WO (1) | WO2010115668A1 (de) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9416759B2 (en) | 2012-05-16 | 2016-08-16 | Robert Bosch Gmbh | Fuel feed device with integrated vertical ejector pump |
| US11008987B2 (en) * | 2013-02-26 | 2021-05-18 | Walbro Llc | Venturi fluid pump with outlet flow controller |
| US9758923B2 (en) | 2015-03-19 | 2017-09-12 | Nike, Inc. | Portable steaming system for articles of footwear |
| DE102015221225A1 (de) * | 2015-10-29 | 2017-05-04 | Ti Automotive Technology Center Gmbh | Kraftstoffbehälter mit Zusatzreservevolumen |
| JP2017210899A (ja) * | 2016-05-24 | 2017-11-30 | 愛三工業株式会社 | 燃料通路構造 |
| DE102017207106B4 (de) | 2017-04-27 | 2022-06-15 | Vitesco Technologies GmbH | Kraftstofffördersystem zur Verwendung in einem Fahrzeug |
| DE102018201117B3 (de) * | 2018-01-24 | 2019-07-04 | Ford Global Technologies, Llc | Baugruppe für ein Fahrzeug, insbesondere Hybridelektrofahrzeug und Fahrzeug, insbesondere Hybridelektrofahrzeug |
| JP6869917B2 (ja) * | 2018-03-28 | 2021-05-12 | 愛三工業株式会社 | 燃料供給装置 |
| US11434931B2 (en) * | 2020-09-23 | 2022-09-06 | Delphi Technologies Ip Limited | Fuel system having a valve upstream of a jet pump |
| CN114130737B (zh) * | 2021-11-12 | 2022-09-13 | 安徽日竞控制技术有限公司 | 一种便于切换清洗剂的清洗机 |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4285770A (en) * | 1979-07-12 | 1981-08-25 | General Electric Company | Jet pump with labyrinth seal |
| DE4219516A1 (de) | 1992-06-13 | 1993-12-16 | Bosch Gmbh Robert | Kraftstofftank mit einem in diesem angeordneten Behälter |
| DE4432968C2 (de) * | 1994-09-16 | 2000-05-25 | Mannesmann Vdo Ag | Kraftstoff-Fördereinrichtung |
| FR2753658B1 (fr) * | 1996-09-26 | 1998-12-11 | Dispositif de puisage de carburant pour reservoir de vehicules automobiles | |
| DE19961923A1 (de) | 1999-12-22 | 2001-07-05 | Bosch Gmbh Robert | Kraftstofffördermodul für Kraftfahrzeuge |
| DE10003748A1 (de) | 2000-01-28 | 2001-08-30 | Bosch Gmbh Robert | Kraftstoffversorgungssystem für Brennkraftmaschinen mit verbesserter Befüllung der Kraftstoffleitung |
| US6505644B2 (en) | 2000-06-09 | 2003-01-14 | Delphi Technologies, Inc. | Dual barrel jet fuel pump assembly for a fuel tank |
| FR2816890B1 (fr) * | 2000-11-20 | 2003-05-16 | Inergy Automotive Systems | Reservoir a carburant de vehicule automobile |
| DE10060293A1 (de) * | 2000-12-05 | 2002-06-06 | Bosch Gmbh Robert | Vorrichtung zum Fördern von Kraftstoff aus einem Vorratsbehälter zu einer Brennkraftmaschine |
| GB2375086B (en) * | 2001-05-05 | 2004-10-20 | Visteon Global Tech Inc | In-tank fuel supply unit |
| EP1302354A1 (de) * | 2001-10-12 | 2003-04-16 | Visteon Global Technologies, Inc. | Kraftstofffördereinrichtung |
| US6679226B2 (en) * | 2001-11-30 | 2004-01-20 | Delphi Technologies, Inc. | Fuel sensor system |
| DE10319660B4 (de) * | 2003-05-02 | 2018-04-19 | Robert Bosch Gmbh | Vorrichtung zum Fördern von Kraftstoff aus einem Vorratsbehälter zu einer Brennkraftmaschine |
| DE10327523A1 (de) * | 2003-06-17 | 2005-01-13 | Siemens Ag | Zur Montage in einem Kraftstoffbehälter vorgesehene Fördereinheit |
| DE10342081B4 (de) * | 2003-09-10 | 2006-08-10 | Siemens Ag | Kraftstoffbehälter für ein Kraftfahrzeug |
-
2009
- 2009-04-09 DE DE200910002299 patent/DE102009002299A1/de not_active Withdrawn
-
2010
- 2010-03-05 CN CN201080015695.0A patent/CN102388215B/zh not_active Expired - Fee Related
- 2010-03-05 US US13/259,276 patent/US8590563B2/en not_active Expired - Fee Related
- 2010-03-05 EP EP20100708518 patent/EP2417345B1/de not_active Not-in-force
- 2010-03-05 WO PCT/EP2010/052824 patent/WO2010115668A1/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2010115668A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2010115668A1 (de) | 2010-10-14 |
| CN102388215B (zh) | 2014-05-07 |
| EP2417345B1 (de) | 2015-01-14 |
| US8590563B2 (en) | 2013-11-26 |
| DE102009002299A1 (de) | 2010-10-14 |
| CN102388215A (zh) | 2012-03-21 |
| US20120018019A1 (en) | 2012-01-26 |
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