EP3516200A1 - Kraftstofffördereinheit - Google Patents
KraftstofffördereinheitInfo
- Publication number
- EP3516200A1 EP3516200A1 EP17771444.1A EP17771444A EP3516200A1 EP 3516200 A1 EP3516200 A1 EP 3516200A1 EP 17771444 A EP17771444 A EP 17771444A EP 3516200 A1 EP3516200 A1 EP 3516200A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel
- valve
- electric motor
- rotation
- unit according
- 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
- F02M37/04—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
- F02M37/02—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
- F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
- F02M37/0023—Valves in the fuel supply and return system
Definitions
- the invention relates to a fuel delivery unit in a fuel tank with a drivable by an electric motor fuel pump and at least one operated by a fuel jet from the fuel pump driven jet ejector pump to promote fuel, wherein the fuel pump ⁇ is arranged in a swirl pot, which can be filled by the suction jet pump , and wherein the fuel ⁇ pump has a first outlet through which fuel is conveyed to a consumer.
- feed pumps are regularly used to convey the medium stored in the tank. This serves to ⁇ to promote the stored medium to a particular consumer.
- a tank system for storing fuel for the supply of an internal combustion engine as is common, for example, in a large number of motor vehicles.
- feed pumps can be used to promote the stored medium.
- fuel pumps are used for this purpose.
- suction jet pumps are known. Suction jet pumps are based on the principle that a negative pressure is generated by the pumping of a propulsion jet through a suction pipe in the region of a suction point, whereby entrained fuel is entrained in the environment.
- the eductor Benö ⁇ Untitled therefore for your business each have a driving jet which is generated by the delivery of fuel through a further force ⁇ fuel pump.
- combinations of an electrically operated fuel pump with one or more suction jet pumps are widely known.
- the Saugstrahlpumpen serve here, for example, the prefetching of fuel into a swirl pot, from which the electrically operated fuel pump, which are mainly designed as submersible pumps, the fuel dissipates.
- the suction jet pumps are distributed in the tank so that a complete emptying is possible regardless of the particular driving situation and in particular the inclination of the vehicle. This is particularly advantageous in the case of a tank having a plurality of chambers in which, starting at a certain level in the tank, a fluidic connection between the individual chambers is ensured only by the delivery line of the suction jet pumps.
- a disadvantage of the solutions in the prior art is in particular that the suction jet pumps are operated permanently as soon as the electrically operated fuel pump delivers fuel, so as soon as a propulsion jet is conveyed through the ejector.
- the permanent operation of the suction jet pump which is basically not always necessary, as not in any situation the additional counselleisung the ejector is needed is an unnecessary amount of energy ver ⁇ needs.
- the object with regard to the fuel delivery unit is achieved by a fuel delivery unit with the features of claim 1.
- An embodiment of the invention relates to a fuel ⁇ stoff usarii in a fuel tank with a drivable by an electric motor fuel pump and at least one operated by a fuel jet from the fuel pump driven jet ejector pump for conveying fuel, wherein the fuel pump is arranged in a swirl pot, which by the suction jet pump can be filled, and wherein the fuel pump has a first outlet ⁇ , through which fuel is conveyed to a consumer, wherein the fuel pump has a second outlet, wherein the second outlet is quigeb ⁇ bar or closed by a valve.
- the fuel pump has a first outlet through which the oil from the swirl pot through the fuel pump promoted fuel from the tank out to a consumer ⁇ cher can be promoted.
- the consumer is preferably formed by an internal combustion engine.
- Fuel pumps of this type with an outlet are known in the art and available in a variety of ways.
- the fuel pump has a second outlet, through which a partial volume of the fuel pumped by the fuel pump can be discharged. This conveyed partial volume is preferably used to supply a suction jet pump in the tank with a propulsion jet.
- the propulsion jet can be promoted by the ejector fuel, which is conveyed, for example, from the tank into the surge chamber, in which the fuel pump is ⁇ assigned .
- the second outlet is selectively closed or release of a valve. This allows the ejector pump to be activated or deactivated by releasing or closing the second outlet.
- a propulsion jet can be conveyed through the second outlet, through which one or more ejector pumps can be driven. This is advantageous, for example, to promote fuel from remote areas of the tank towards the intake of the fuel pump.
- multi-chamber tanks or very fissured tanks often do not offer the possibility that the fuel at each level can flow purely by gravity towards the intake of the fuel pump.
- the valve is a mechani cal ⁇ coupling to the electric motor is adjustable by the electric motor.
- actuating the valve via a mechanical coupling with the electric motor By actuating the valve via a mechanical coupling with the electric motor, a particularly simple adjustment of the valve can be achieved. Insbesonde- No additional active components are required which would require a separate power supply or drive. This minimizes the extra work to be done.
- the valve via a coupling to the electric motor or driven by the electric motor shaft is connected, so that the rotational motion of the electric motor to the valve, or the coupling can be transmitted.
- the rotational movement of the electric motor is translated via a gear-like component. As a result, for example, the rotational movement of the electric motor can be translated into a translational movement. Depending on the Ausgestal ⁇ tion of the valve, this may be advantageous.
- Rotary movement for the fuel delivery opposing rotational movement of the fuel pump driving electric motor is variable.
- regular rotational movement is meant the direction of rotation of the electric motor in which the electric motor is rotated to deliver fuel from the tank to a consumer.
- fuel pumps are designed for a defined direction of rotation, so that only fuel is conveyed to the consumer when the electric motor in this
- Rotation is turned.
- electrically commutated motors are used, which can be rotated by a corresponding influence on the electrical exciter field in both directions of rotation.
- the valve can be targeted depending on the direction of rotation of the electric motor angesteu ⁇ ert.
- the valve is movable via a coupling by the electric motor. This is advantageous, since thus the valve can be selectively controlled. in principle would also be an electrically actuated clutch providable, which can be opened and closed via a switching command.
- this would be contrary to the actual inventive idea, as just a simple as possible Betrelinsdorf- ness for the valve is desired, that is preferably provided a mechanical coupling for connecting the valve to the Elect ⁇ romotor.
- the position of the VEN is variable TILs by a reverse rotation of the electric motor from we ⁇ niger than 360 degrees, preferably of less than 180 degrees and more preferably less than 90 degrees.
- the position of the valve is influenced only by a partial rotation of the electric motor in the opposite direction to regulä ⁇ ren rotational direction. This is to prevent that by a prolonged rotation against the regular direction of rotation no more fuel is promoted or even a recovery of the fuel is achieved.
- the operation of the valve should be done quickly, so that a pos ⁇ lichst short Vermosweg is advantageous.
- the time required to make the electric motor rotate in the regular direction after reversing the direction of rotation is shortened because high rotation angles in the opposite direction are not achieved.
- the coupling is made in two parts ⁇ ⁇ , wherein reversed by a reversal of the two Coupling parts against each other about the axis of rotation of the coupling are rotatable, wherein by the rotation of the two coupling parts relative to each other a translational movement of at least one coupling part along the axis of rotation can be generated bar.
- the two coupling parts may for example have two backdrop-like contact surfaces, with which they rest against each other. By a relative movement of the two coupling parts to each other, the rotational movement can be translated into a translational movement. This can play as slide at ⁇ by providing bevels and up rela ⁇ hung as descending path curves on which the coupling parts can be achieved.
- the coupling parts are designed such that they interlock with each other and experience no relative movement to each other when the electric motor is moved in the regular direction of rotation and thus fuel is conveyed.
- the actuation of the valve is avoided, so that it remains in the last set position.
- an open valve ben opened further lead or vice versa a closed valve closed ⁇ lead-ben.
- the translational movement of the at least one coupling part along the rotational axis can be transferred to a valve disk, wherein the second outlet can be opened or closed by the valve disk.
- the second outlet can thus be released or closed in a simple manner, as a result of which the delivery of fuel to the suction jet pump for generating a propulsion jet can be started or ended.
- the valve disk has a latching, wherein the valve disk is fixed in the respective position by the latching, which has been caused by the translatory movement of the at least one coupling part.
- the locking is advantageous to allow the persistence of the valve ⁇ plate in a position so that the valve will remain either open or closed.
- One possible locking mechanism for example, provides barbs which engage in recesses provided for this purpose when the valve disk is moved. Through a combination of translational motion with a rotating motion that the latching is released again by example ⁇ , the barb against the recesses are rotated, and the valve disc is then fed to a smooth inner surface of the channel in which the valve disc can be achieved, transla ⁇ torisch can be moved towards the clutch or away from the clutch.
- the principle works similar to a latching, as it is known, for example from pens ⁇ be.
- valve disk in a of ⁇ fenen position and in a closed position and in each case by a rotational movement of the electric motor entge ⁇ gen the regular direction of rotation allow a displacement of the valve disk between these two positions.
- valve disk by the same rotational movement of the electric motor can be moved to both the closed position and the open position.
- valve disk is moved for example from one of the two positions by a first rotational movement of the electric motor against the regular direction of rotation in the second position and is securely locked there and by a second rotational movement of the electric motor in the same ⁇ che Direction is released from the second position and pushed back to the first position.
- the valve disc remains in a rotational movement of the electric motor in the regular direction of rotation in its respective position.
- FIG. 1 is a schematic hydraulic circuit diagram of a fuel pump according to the invention with an electric motor, two outlets, a valve and a clutch,
- Fig. 2 is a schematic diagram of the valve and the coupling with which the valve is connected to the electric motor, and
- FIG. 3 shows a sectional view through a fuel pump with two outlets, wherein one of the outlets can be closed by a valve connected to the electric motor by means of a coupling.
- FIG. 1 shows a hydraulic circuit diagram of a fuel pump according to the invention.
- the outlets AI and A2 designate the outlets of the fuel pump.
- the outlet AI leads to the consumer, such as the internal combustion engine, which is downstream of the fuel pump.
- the outlet A2 leads to one or more suction jet pumps, which can be supplied with a propulsion jet through the outlet A2.
- the outlet A2 can be released by the valve VI or completely closed.
- the outlet A2 nachge ⁇ switched ejector pump can thus be activated or deactivated by the conveyed for generating a propulsion jet fuel through the valve VI can flow or not.
- the electric motor Ml drives the pump stage PI of the fuel pump. Via a clutch Kl, the valve VI is also connected to the electric motor Ml and can be moved by the electric motor Ml.
- the clutch Cl is such that the valve VI is not moved along a direction of rotation of Elektromo ⁇ gate Ml, but on the other hand can be moved from the open position to the closed along the counter-sensed direction of rotation of the electric motor Ml or vice versa closed from the position can be moved into the open.
- the electric motor Ml is electrically connected to the power source El. By changing the polarity of the excitation field of the sense of rotation of the electric motor Ml can be changed ⁇ changed, whereby it rotates in either a clockwise or counterclockwise.
- FIG. 2 shows a schematic view of the clutch Kl of the fuel pump of Figure 1.
- the clutch Kl is formed in the embodiment of Figure 1 by two coupling parts 1 and 2.
- the coupling part 1 is connected to the output shaft of the electric motor Ml and is thus rotated in accordance with the rotational movement of the electromobility ⁇ tors Ml.
- the coupling part 2 is connected to the valve plate 3 of the valve VI and continues to be applied to the coupling part 1. If the coupling part 1 is rotated by the electric motor M1 opposite to the regular direction of rotation for operation of the fuel pump, the coupling part 1 is rotated relative to the coupling part 2.
- the design of the coupling parts 1 and 2 thus produces a translational movement along the axis of rotation towards the valve VI, whereby the valve disk 3 is displaced translationally.
- the coupling parts 1 and 2 can be designed for this purpose, for example, ⁇ like a backdrop and have slopes.
- the coupling part 2 is transmitted to at least part of the rotational movement of the coupling part 1 on the valve disk 3.
- the valve disk 3 has a latching device 4 formed by barbs, by means of which the valve disk 3 can be fixed in the housing 5, which forms the outlet A2.
- the housing 5 may for this purpose have recesses into which the barbs can engage. By turning the valve disk 3 out of the latched position, the barbs can be released from the recesses and the valve disk 3 can be moved in a translatory and rotational manner relative to the housing 5.
- valve disk 3 is supported by the spring 6 relative to the housing 5, whereby the return movement of the valve disk is supported towards the clutch Kl. Without a rotational movement of the electric motor M1 contrary to the regular direction of rotation the valve plate 3 remains in its last position either in the open or in the closed state. The position of the valve VI is thus completely determined by the rotation ⁇ movement of the electric motor Ml.
- FIG. 3 shows a section through a fuel pump 7 with the two outlets AI and A2 at the upper end.
- the outlet A2 can be released and closed via the valve VI already shown in FIGS. 1 and 2.
- the structure known from FIG. 2 is integrated into the fuel pump 7 above the electric motor M1.
- the reference numerals of Figure 3 are consistent with those of Figure 2, as long as identical elements are shown.
- FIG. 3 shows a possible exemplary embodiment for a fuel pump for a fuel delivery unit according to the invention.
- the fuel pump 7 has, like a conventional fuel pump, at the lower end portion of a suction port through which it can suck the fuel from its environment.
- the fuel is then conveyed upwards by the fuel pump and, in the exemplary embodiment of FIG. 3, is discharged through the outlet A1 and depending on the opening state of the valve VI through the outlet A2.
- the embodiments of Figures 1 to 3 have insbeson ⁇ particular any limiting character and for illustrative purposes only of the inventive concept.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Reciprocating Pumps (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Feeding And Controlling Fuel (AREA)
- Jet Pumps And Other Pumps (AREA)
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016218294.3A DE102016218294B3 (de) | 2016-09-23 | 2016-09-23 | Kraftstofffördereinheit |
| PCT/EP2017/073897 WO2018055032A1 (de) | 2016-09-23 | 2017-09-21 | Kraftstofffördereinheit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3516200A1 true EP3516200A1 (de) | 2019-07-31 |
| EP3516200B1 EP3516200B1 (de) | 2020-08-19 |
Family
ID=59923454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17771444.1A Active EP3516200B1 (de) | 2016-09-23 | 2017-09-21 | Kraftstofffördereinheit |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US10808659B2 (de) |
| EP (1) | EP3516200B1 (de) |
| JP (1) | JP6861805B2 (de) |
| KR (1) | KR102196141B1 (de) |
| CN (1) | CN109863295B (de) |
| DE (1) | DE102016218294B3 (de) |
| WO (1) | WO2018055032A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016218294B3 (de) | 2016-09-23 | 2018-03-08 | Continental Automotive Gmbh | Kraftstofffördereinheit |
| DE102021200838B4 (de) | 2021-01-29 | 2023-01-26 | Vitesco Technologies GmbH | Kraftstoffpumpe und Kraftstofffördereinheit mit einer derartigen Kraftstoffpumpe |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5525048A (en) * | 1993-12-15 | 1996-06-11 | Walbro Corporation | Cantilever armature mount for fuel pumps |
| US5452701A (en) * | 1994-05-23 | 1995-09-26 | Walbro Corporation | Turbine fuel pump with fuel jet |
| DE19843318C5 (de) | 1998-09-22 | 2007-03-08 | Siemens Ag | Kraftstofffördereinheit |
| DE19914269A1 (de) | 1999-03-29 | 2000-10-19 | Bosch Gmbh Robert | Kupplung und Kraftstoffförderpumpe mit Kupplung |
| JP3764296B2 (ja) * | 1999-05-25 | 2006-04-05 | 愛三工業株式会社 | 燃料供給装置 |
| US6591859B2 (en) * | 2001-12-14 | 2003-07-15 | Ming-Hsiu Shih | Ball valve |
| DE10215652A1 (de) | 2002-04-09 | 2003-11-06 | Siemens Ag | Kraftstofffördereinheit für ein Kraftfahrzeug |
| US7159614B2 (en) * | 2002-12-31 | 2007-01-09 | Hamilton Sundstrand | Assembly for in-line valve actuation and indication |
| US7353807B2 (en) * | 2005-04-19 | 2008-04-08 | Ti Group Automotive Systems, L.L.C. | Jet pump assembly of a fuel system for a combustion engine |
| DE102006024456A1 (de) | 2006-05-24 | 2007-11-29 | Siemens Ag | Saugstrahlpumpe |
| JP2008121454A (ja) * | 2006-11-09 | 2008-05-29 | Aisan Ind Co Ltd | 燃料供給装置 |
| DE102007039861A1 (de) | 2007-08-23 | 2009-02-26 | Robert Bosch Gmbh | Kraftstoffsatteltank und Verfahren zum Betrieb eines Kraftstofffördersystems in einem Kraftstoffsatteltank |
| JP2009144542A (ja) * | 2007-12-12 | 2009-07-02 | Aisan Ind Co Ltd | 燃料供給装置 |
| DE102008054380A1 (de) * | 2008-12-08 | 2010-06-10 | Robert Bosch Gmbh | Vorrichtung zur Kraftstoffversorgung einer Brennkraftmaschine |
| JP2011122563A (ja) * | 2009-12-14 | 2011-06-23 | Denso Corp | 燃料ポンプ |
| EP2912356A1 (de) * | 2012-10-25 | 2015-09-02 | Pyroban Limited | Ankeranordnung für ein magnetventil |
| JP6086696B2 (ja) * | 2012-11-01 | 2017-03-01 | 愛三工業株式会社 | 燃料供給装置 |
| US20140338752A1 (en) * | 2013-05-14 | 2014-11-20 | Delphi Technologies, Inc. | Fuel supply system and method for operating |
| DE102014225315A1 (de) * | 2014-12-09 | 2016-06-09 | Robert Bosch Gmbh | Krafstofffördereinrichtung |
| DE102016218294B3 (de) | 2016-09-23 | 2018-03-08 | Continental Automotive Gmbh | Kraftstofffördereinheit |
-
2016
- 2016-09-23 DE DE102016218294.3A patent/DE102016218294B3/de not_active Expired - Fee Related
-
2017
- 2017-09-21 KR KR1020197011097A patent/KR102196141B1/ko active Active
- 2017-09-21 US US16/336,051 patent/US10808659B2/en active Active
- 2017-09-21 JP JP2019515796A patent/JP6861805B2/ja active Active
- 2017-09-21 EP EP17771444.1A patent/EP3516200B1/de active Active
- 2017-09-21 WO PCT/EP2017/073897 patent/WO2018055032A1/de not_active Ceased
- 2017-09-21 CN CN201780051729.3A patent/CN109863295B/zh active Active
Also Published As
| Publication number | Publication date |
|---|---|
| US10808659B2 (en) | 2020-10-20 |
| JP2019529780A (ja) | 2019-10-17 |
| EP3516200B1 (de) | 2020-08-19 |
| DE102016218294B3 (de) | 2018-03-08 |
| JP6861805B2 (ja) | 2021-04-21 |
| WO2018055032A1 (de) | 2018-03-29 |
| KR102196141B1 (ko) | 2020-12-29 |
| US20190226435A1 (en) | 2019-07-25 |
| CN109863295A (zh) | 2019-06-07 |
| KR20190047726A (ko) | 2019-05-08 |
| CN109863295B (zh) | 2021-07-16 |
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