EP1630405A2 - Système d'alimentation de carburant - Google Patents

Système d'alimentation de carburant Download PDF

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Publication number
EP1630405A2
EP1630405A2 EP20050106801 EP05106801A EP1630405A2 EP 1630405 A2 EP1630405 A2 EP 1630405A2 EP 20050106801 EP20050106801 EP 20050106801 EP 05106801 A EP05106801 A EP 05106801A EP 1630405 A2 EP1630405 A2 EP 1630405A2
Authority
EP
European Patent Office
Prior art keywords
valve
supply system
fuel supply
fuel
mixer
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
Application number
EP20050106801
Other languages
German (de)
English (en)
Other versions
EP1630405A3 (fr
EP1630405B1 (fr
Inventor
Carsten Benzin
Bernd Lienemann
Alexander Sonntag
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aumovio Germany GmbH
Original Assignee
Siemens AG
Continental Automotive Technologies GmbH
Siemens Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG, Continental Automotive Technologies GmbH, Siemens Corp filed Critical Siemens AG
Publication of EP1630405A2 publication Critical patent/EP1630405A2/fr
Publication of EP1630405A3 publication Critical patent/EP1630405A3/fr
Application granted granted Critical
Publication of EP1630405B1 publication Critical patent/EP1630405B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F02M37/0076—Details of the fuel feeding system related to the fuel tank
    • F02M37/0088—Multiple separate fuel tanks or tanks being at least partially partitioned
    • F02M37/0094—Saddle tanks; Tanks having partition walls
    • 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
    • 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
    • F02M37/0047—Layout or arrangement of systems for feeding fuel
    • F02M37/0052—Details on the fuel return circuit; Arrangement of pressure regulators
    • F02M37/0058—Returnless fuel systems, i.e. the fuel return lines are not entering the fuel 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
    • F02M37/04—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
    • 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
    • Y10T137/4673—Plural tanks or compartments with parallel flow
    • 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
    • Y10T137/86131—Plural

Definitions

  • the invention relates to a fuel supply system for supplying an internal combustion engine of a motor vehicle with two arranged in a fuel tank conveying means for conveying fuel, with a connector for guiding the subsidized by the funding fuel of two, each connected to the funding inlets to an outlet.
  • Such fuel supply systems are used, for example, for motor vehicles with a high power consumption and narrow fuel tanks, where a single funding often insufficient in terms of performance, and are known in practice. Furthermore, such fuel supply systems are used in so-called saddle tanks, in which the fuel tank has two chambers, wherein in the individual chambers additionally suction jet pumps can be arranged, which promote fuel in one or two baffles.
  • the connecting pieces combine a flow of two lines, for example the conveyor units, to a fuel line leading to the internal combustion engine or to one or two suction jet pumps.
  • the connectors of the known fuel supply system are ordinary tees.
  • a disadvantage of the known fuel supply system that, for example, in one of two in-service funding fuel from one of the funding can flow to the switched off funding. This leads to an unnecessary circulation of the fuel and to energy losses in promoting the fuel to the internal combustion engine. In order to avoid this problem, one manages in practice with the fact that between the inlets and the conveying means in each case a check valve is used. However, this leads to a very large construction effort of the fuel supply system.
  • the invention is based on the problem, a fuel supply system of the type mentioned in such a way that an unnecessary overflow of the fuel is avoided via the connector and that the fuel supply system is particularly simple.
  • the connecting piece has a mixer valve and that the mixer valve closes the inlet at the low pressure at a pressure difference between the inlets.
  • the fuel supply system according to the invention requires no additional check valves in the lines leading from the conveyor units to the connector. Therefore, the fuel supply system according to the invention consists of particularly few components to be assembled and is thus constructed particularly simple. Of course, can be connected by connecting several mixer valves more than two funding with a single outlet to connect a single fuel line.
  • connection of the funded by the funding fuel flows designed according to an advantageous embodiment of the invention structurally particularly simple if the inlets each have a valve seat and if between the valve seats, a valve body is movably guided by the pressure in the inlets and if the distance of the valve seats larger is the width of the valve body. To avoid periodically occurring pressure fluctuations, the movement of the valve body can of course be damped.
  • the consumer can be supplied with fuel via both conveying means if, in a middle position of the valve body, both inlets are connected to the outlet between the valve seats. In this way it is ensured that, when the internal combustion engine requires a great deal of fuel, both pumping units can jointly convey fuel.
  • An emptying of a leading to the engine flow line can be avoided according to another advantageous embodiment of the invention, when a check valve is disposed between the mixer valve and the outlet.
  • a control valve is arranged, which connects the outlet with an opening into the fuel tank opening in the pressureless state and in the pressurized state the opening closes.
  • the opening and fuel flows from the mixer valve of the connector to the outlet and thus to the ejector.
  • the control valve prevents fuel from being drawn in via the outlet.
  • the assembly of the fuel supply system according to the invention is particularly simple if the mixer valve is formed with the control valve or the check valve as a structural unit. In this way, the mixer valve with the control valve or with the check valve outside the fuel tank can be preassembled to the structural unit and then use with little effort in the fuel tank.
  • the mixer valve and the control valve or the check valve have a common housing.
  • the mixer valve and / or the control valve and / or the check valve have straight channels for receiving the valve body and that the channels are closed by a closure means.
  • the closure means is formed as a form-fitting connected to the housing cap or plug.
  • the mixer valve designed in accordance with another advantageous embodiment of the invention structurally particularly simple when one of the valve seats of the mixer valve in the Closure means and the other of the valve seats is arranged in the housing.
  • a distribution of the funding in a base load conveyor and a peak load conveyor can be one of the inlets in basic position simply close when the valve body of the mixer valve is biased in a designated position.
  • valve body of the mixer valve is designed as a ball.
  • FIG. 1 shows a fuel tank 1 for a motor vehicle with a fuel supply system for supplying an internal combustion engine 2 with fuel.
  • the fuel tank 1 is formed as a saddle tank with two chambers 3, 3 'and has a filler neck 4.
  • the fuel supply system has two conveyor units 5, 5', each with a swirl pot 6, 6 '.
  • the fuel tank 1 mounting flanges 7, 7' on. Through one of the mounting flanges 7 'one of the conveyor units 5, 5' guided to the internal combustion engine 2 feed line 8 is passed. This is a so-called non-return fuel supply system, in which no fuel unused by the internal combustion engine 2 is returned to the fuel tank 1.
  • the conveyor units are 5, 5 'each electrically driven and each have a precursor 9 and a main stage 10.
  • the main stages 10 promote fuel from the surge chambers 6, 6' via a first connector 11 to the engine 2.
  • the precursors 9 promote fuel from the Swirl pots 6, 6 'via a second connector 12 to in the chambers 3, 3' arranged suction jet pumps 13, 13 '.
  • the Saugstrahlpumpen 13, 13 ' are thereby supplied with fuel as a propellant and promote fuel from the chambers 3, 3' in the surge chambers 6, 6 '.
  • Filters 15 of the main stages 10 are arranged in the surge chambers 6, 6 '.
  • the conveyor units 5, 5 ' can be operated individually or jointly according to the needs of the internal combustion engine 2. With little need of the internal combustion engine 2 to fuel thus one of the conveyor units 5, 5 'is turned off.
  • FIG. 2 shows the first connector 11 of the fuel supply system of Figure 1 in a sectional view.
  • the connecting piece 11 has two inlets 16, 16 ', which are each connected to the main stages 10 of the conveyor units 5, 5' of FIG.
  • the connecting piece 11 has an outlet 17, to which the feed line 8 shown in FIG. 1 and leading to the internal combustion engine 2 can be connected.
  • the connecting piece 11 has a check valve 18 and a mixer valve 19.
  • the check valve 18 has a biased by a spring element 20 against a valve seat 21 valve body 22. If none of the conveyor units 5, 5 'shown in Figure 1 promotes fuel, the spring element 20 presses the valve body 22 against the valve seat 21 and closes the outlet 17. Thus an idling of the flow line 8 is prevented.
  • the valve body 22 of the check valve 18 When a delivery of at least one of the conveyor units 5, 5 ', the valve body 22 of the check valve 18 is pushed away from the valve seat 21 and fuel flows to the outlet 17 of the first connector 11 and thus in the flow line 8.
  • the mixer valve 19 has one between two valve seats 23rd When conveying only one of the conveyor units 5, 5 'of Figure 1, the valve body 24 is pressed against one of the valve seats 23, 23' and thus closes the inlet 16, 16 'of the other Feed unit 5, 5 '. This prevents that from the one conveyor unit 5, 5 'funded fuel through the switched-off other conveyor unit 5, 5' is conveyed back into the fuel tank 1.
  • the first connector 11 has a common housing 25 for the mixer valve 19 and the check valve 18.
  • the mixer valve 19 and the check valve 18 are each sealed with a cap 26, 27.
  • FIG 3 shows the second connector 12 of the fuel supply system of Figure 1, with two inlets 28, 28 'for connecting the precursors 9 of the conveyor units 5, 5' of Figure 1 and an outlet 29, to which the two Saugstrahlpumpen 13, 13 'connect to let.
  • the second connector 12 has a mixer valve 30, which is constructed like the mixer valve 19 of the first valve 11 of Figure 2.
  • the second connection piece 12, seen in the flow direction behind the mixer valve 30, has a control valve 31 with a valve body 33 held away from a valve seat 32 by gravity. From the valve body 33, the control valve 31 has a valve seat 32 leading into the fuel tank 1 Opening 34.
  • valve body 33 When a delivery of at least one of the conveyor units 5, 5 'of the fuel supply system of Figure 1, the valve body 33 is pressed against the valve seat 32 and closes the opening 34. Thus, fuel through the outlet 29 to the illustrated in Figure 1 Saugstrahlpumpen 13, 13 'promoted.
  • both conveyor units 5, 5 'are turned off the valve body 33 of the control valve 31 is pushed by gravity from the valve seat 32 in the position shown. As a result, the outlet 29 is connected to the opening into the fuel tank 1 opening 34. This air enters the lines leading to the suction jet pumps 13, 13 '. A siphon effect, which leads to a suction of fuel would lead through the precursors 9 of the conveyor units 5, 5 ', is thus prevented.
  • FIG. 4 shows a further embodiment of the mixer valve 19, 30 of first or second connecting piece 11, 12, which differs from that of FIGS. 2 and 3 only in that a valve body 35 guided between two valve seats 36, 36 'is dish-shaped. Furthermore, the valve body 35 may be biased by a spring element, for example in the middle position in an embodiment not shown. If the conveying units 5, 5 'from FIG. 1 are divided into a base load conveying unit 5, 5' and a peak load conveying unit 5, 5 ', alternatively the valve body 33 can also act against the valve seat leading to the peak load conveying unit 5, 5' 36, 36 'to be biased. Thus, an inlet 37, 37 'leading to the peak load delivery unit 5, 5' is always closed when the internal combustion engine 2 of FIG. 1 does not require an increased demand for fuel.
  • FIG. 5 shows a further embodiment of the mixer valve 19, 30 for the first or second valve 11, 12 of FIG. 1, with two inlets 38, 38 'in which a channel leading to the control valve 31 from FIG. 3 or the check valve 18 from FIG 39 is passed under one of the inlets 38.
  • a valve body 40 is movably guided between two valve seats 41, 41 '.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Multiple-Way Valves (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Check Valves (AREA)
EP20050106801 2004-08-25 2005-07-25 Système d'alimentation de carburant Expired - Lifetime EP1630405B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200410041203 DE102004041203A1 (de) 2004-08-25 2004-08-25 Kraftstoffversorgungsanlage

Publications (3)

Publication Number Publication Date
EP1630405A2 true EP1630405A2 (fr) 2006-03-01
EP1630405A3 EP1630405A3 (fr) 2011-10-12
EP1630405B1 EP1630405B1 (fr) 2013-04-24

Family

ID=34978942

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20050106801 Expired - Lifetime EP1630405B1 (fr) 2004-08-25 2005-07-25 Système d'alimentation de carburant

Country Status (3)

Country Link
US (1) US7222609B2 (fr)
EP (1) EP1630405B1 (fr)
DE (1) DE102004041203A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008058498B4 (de) * 2008-11-24 2021-09-16 Andreas Stihl Ag & Co. Kg Kraftstoffsystem eines handgeführten Arbeitsgerätes
CN102782298A (zh) * 2010-01-08 2012-11-14 费德罗-莫格尔公司 带有整体低压提升泵的蒸汽分离器
US10197023B2 (en) * 2016-11-17 2019-02-05 Ford Global Technologies, Llc Saddle fuel tank
KR102311668B1 (ko) * 2017-09-21 2021-10-13 현대자동차주식회사 이종연료탱크용 선택적 연료조절장치

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2821972A (en) 1956-01-05 1958-02-04 New Prod Corp System for emptying a plurality of tanks and shuttle valve therefor
EP0979939A2 (fr) 1998-08-10 2000-02-16 Mannesmann VDO Aktiengesellschaft Système d'alimentation en carburant

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US3972343A (en) * 1974-11-13 1976-08-03 Parker-Hannifin Corporation Shuttle valve
US4286624A (en) * 1980-02-25 1981-09-01 Eivind Clausen Fluid handling systems & multi-positionable valving arrangements for the use therein
US4860714A (en) * 1986-08-20 1989-08-29 Whitehead Engineered Products, Inc. In-tank fuel pump assembly for fuel-injected engines
US4951699A (en) * 1989-11-06 1990-08-28 Chrysler Corporation Fuel transfer system with aspirator
US5361742A (en) * 1993-02-08 1994-11-08 Walbro Corporation Fuel pump manifold
US5331994A (en) * 1993-04-13 1994-07-26 Bryan Iii John F Fuel additive dispensing system
DE4335858B9 (de) * 1993-10-21 2007-09-20 Siemens Ag Kraftstoff-Fördereinrichtung für eine Brennkraftmaschine
US5732684A (en) * 1994-09-22 1998-03-31 Ford Global Technologies, Inc. Automotive fuel delivery system with pressure actuated auxiliary fuel pump
DE19932356B4 (de) * 1998-08-10 2010-03-18 Continental Automotive Gmbh Kraftstoffversorgungsanlage
US6283142B1 (en) * 2000-02-04 2001-09-04 Robert Bosch Corporation Dual fuel delivery module system for bifurcated automotive fuel tanks
US6553973B1 (en) * 2000-05-25 2003-04-29 Delphi Technologies, Inc. Fuel tank cover and filter assembly for fuel tank
US6371153B1 (en) * 2001-03-16 2002-04-16 Robert Bosch Corporation Dual fuel delivery module system for multi-chambered or multiple automotive fuel tanks
FR2834006B1 (fr) * 2001-12-20 2004-04-16 Marwal Systems Dispositif embarque d'alimentation en carburant pour vehicule automobile
US6845782B2 (en) * 2002-10-11 2005-01-25 International Truck Intellectual Property Company, Llc Multiple tank circulating fuel system
DE10318050A1 (de) * 2003-04-17 2004-11-04 Siemens Ag Kraftstoffbehälter
DE10327320A1 (de) * 2003-06-16 2005-01-27 Siemens Ag Kraftstoffversorgungsanlage
US7069913B1 (en) * 2005-08-18 2006-07-04 Ti Group Automotive Systems, L.L.C. Fuel delivery system for a combustion engine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2821972A (en) 1956-01-05 1958-02-04 New Prod Corp System for emptying a plurality of tanks and shuttle valve therefor
EP0979939A2 (fr) 1998-08-10 2000-02-16 Mannesmann VDO Aktiengesellschaft Système d'alimentation en carburant

Also Published As

Publication number Publication date
EP1630405A3 (fr) 2011-10-12
US7222609B2 (en) 2007-05-29
DE102004041203A1 (de) 2006-03-09
US20060060250A1 (en) 2006-03-23
EP1630405B1 (fr) 2013-04-24

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