EP0822330B1 - Brennstoffversorgungssystem für Brennkraftmaschinen - Google Patents
Brennstoffversorgungssystem für Brennkraftmaschinen Download PDFInfo
- Publication number
- EP0822330B1 EP0822330B1 EP97105983A EP97105983A EP0822330B1 EP 0822330 B1 EP0822330 B1 EP 0822330B1 EP 97105983 A EP97105983 A EP 97105983A EP 97105983 A EP97105983 A EP 97105983A EP 0822330 B1 EP0822330 B1 EP 0822330B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel
- pressure
- supply system
- fuel pump
- storage capacity
- 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.)
- Expired - Lifetime
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
- F02M37/04—Feeding by means of driven pumps
- F02M37/08—Feeding by means of driven pumps electrically driven
-
- 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
- F02M37/103—Mounting pumps on fuel tanks
Definitions
- the invention relates to a fuel supply system for internal combustion engines according to the Preamble of claim 1.
- a supply device is known in which a between Fuel pump and manifold used pressure switch depending on the Pump outlet pressure switches between conductive and non-conductive and thereby the Fuel pump via a control circuit with different electrical power is supplied when the pump outlet pressure exceeds or exceeds a threshold value of the pressure switch falls below.
- This pressure switch is located outside the fuel tank and has a large one Storage volume on and various connection lines on. Besides a big one
- the space requirement is the disadvantage that fuel leaks into the atmosphere in the event of a leak exit.
- the object of the invention is to create a generic one To design the fuel supply system so that a simplified structure, none Connection lines and also a reduced susceptibility to interference can be achieved.
- Fig. 1 shows schematically an inventive fuel supply system for Internal combustion engines, formed from a fuel pump 1 with electrical connections, which is arranged in a swirl pot 2 of a fuel tank 3 and via a Promotes fuel pressure line 4 to the internal combustion engine.
- a reducing pressure regulator 5 is arranged, its output line 6 with a distributor bar 7 is connected to injection valves of the internal combustion engine.
- the reducing pressure regulator 5 is set so that the reducing pressure is less than one of a pressure switch 8 is regulated / set pressure.
- This pressure switch 8 controls the Power supply to the fuel pump depending on the pump pressure and is with a large storage volume 9 equipped so that the pressure switch 8 a large Has switching hysteresis and opens and at large stored fuel volume small closes.
- the storage volume 9 consists in a known swirl pot 2 arranged in the fuel tank 3, in which the fuel pump 1 is arranged.
- the storage volume 9 is loaded by a spring 10 Piston 11 is limited and the pressure switch 8 as a piston travel switch 12 in the swirl pot 2 is arranged. This eliminates the complicated pressure switch of the prior art Technology.
- the invention provides that the storage volume 9 via an electrical shut-off valve 13 with one of the Fuel pump 1 connected to the fuel pressure line 4 leading to the distributor 7 is. This ensures that the fuel stored in the storage volume 9 turned off internal combustion engine and shutdown valve 13 no longer to the Distribution rail 7 or the injection valves and can get into the combustion chamber if they may be leaking.
- Fig. 2 shows a section of the swirl pot 2 from Fig. 1. It can be seen that the Piston 11 loading spring 10 coaxial with the fuel pump 1 and wrapping it around is arranged, whereby there is a space-saving arrangement.
- roll chamber 2 fuel pump 1 and Storage volume 9 are assembled in a modular design, d. H. here are Storage volume 9, spring 10 and fuel pump 1 by tie bolts screwed together and inserted together in the swirl pot 2.
- This consists of a housing 14, which has a tank cover 16 via holder 15 is connected and is pressed against the tank bottom 18 via springs 17.
- the fuel pump 1 is arranged with a first and a second Pump stage is equipped.
- the first pump stage sucks the fuel out of the tank 3 via a filter 19 and conveys it into a storage chamber 20 which is open at the top is.
- the second pump stage sucks the fuel from the storage chamber 20 and promotes it via the fuel pressure line 4 and the reducing pressure regulator 5 to the mentioned manifold 7 and the injection valves.
- This in the pressure storage chamber 22 is closed by the storage volume against one Spring movable piston 11 changeable.
- the piston travel switch 12 is in the Storage chamber 20 is arranged and is non-contact by the piston 11 or mechanically operated so that it switches 10 when the fuel volume is large opens and closes when small.
- the fuel delivered by the fuel pump 1 arrives via the pressure line 4 the reducing pressure regulator 5 and at the same time via the line 21 and the shut-off valve 13 into the pressure storage chamber 22.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
ein erfindungsgemäßes Brennstoffversorgungssystem,
eine Ausbildung eines Schlingertopfes aus Fig. 1.
Erfindungsgemäß ist nun vorgesehen, daß das Speichervolumen 9 in einem bekannten, im Brennstofftank 3 angeordneten Schlingertopf 2 besteht, in dem die Brennstoffpumpe 1 angeordnet ist.
Claims (6)
- Brennstoffversorgungssystem für Brennkraftmaschinen, gebildet aus Brennstoffpumpe (1), Druckschalter (8) und Verteilerleiste (7) mit Einspritzventilen, wobei der mit Speichervolumen (9) ausgestattete Druckschalter (8) die Leistungszufuhr zur Brennstoffpumpe (1) in Abhängigkeit vom Speichervolumen (9) steuert und der Druckschalter (8) bei großem gespeicherten Brennstoffvolumen öffnet und bei kleinem schließt, dadurch gekennzeichnet, daß das Speichervolumen (9) in einem bekannten, im Brennstofftank (3) angeordneten Schlingertopf (2) vorgesehen ist, in dem die Brennstoffpumpe (1) angeordnet ist.
- Brennstoffversorgungssystem nach Anspruch 1, dadurch gekennzeichnet, daß das Speichervolumen (9) durch einen von einer Feder (10) belasteten Kolben (11) begrenzt ist und der Druckschalter (8) als Kolbenwegschalter (12) ausgebildet und im Schlingertopf (2) angeordnet ist.
- Brennstoffversorgungssystem nach Anspruch 2, dadurch gekennzeichnet, daß das Speichervolumen (9) über ein elektrisches Abschaltventil (13) mit einer von der Brennstoffpumpe (1) zu der Verteilerleiste (7) führenden Brennstoffdruckleitung (4) verbunden ist.
- Brennstoffversorgungssystem nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß die den Kolben (11) belastende Feder (10) koaxial zur Brennstoffpumpe (1) und diese umschlingend angeordnet ist.
- Brennstoffversorgungssystem nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß Schlingertopf (2), Brennstoffpumpe (1) und Speichervolumen (9) in modularer Bauweise zusammengefügt sind.
- Brennstoffversorgungssystem nach Anspruch 5, dadurch gekennzeichnet, daß Speichervolumen (9), Feder (10) und Brennstoffpumpe (1) durch Zugankerschrauben miteinander verschraubt und gemeinsam in den Schlingertopf (2) eingesetzt sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19627579 | 1996-07-09 | ||
DE19627579A DE19627579A1 (de) | 1996-07-09 | 1996-07-09 | Brennstoffversorgungssystem für Brennkraftmaschinen |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0822330A2 EP0822330A2 (de) | 1998-02-04 |
EP0822330A3 EP0822330A3 (de) | 1998-03-18 |
EP0822330B1 true EP0822330B1 (de) | 2001-05-30 |
Family
ID=7799305
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97105983A Expired - Lifetime EP0822330B1 (de) | 1996-07-09 | 1997-04-11 | Brennstoffversorgungssystem für Brennkraftmaschinen |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0822330B1 (de) |
DE (2) | DE19627579A1 (de) |
ES (1) | ES2157496T3 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20040028626A (ko) * | 2001-07-25 | 2004-04-03 | 로베르트 보쉬 게엠베하 | 차량용 연료 공급 장치 |
JP2003083194A (ja) * | 2001-09-12 | 2003-03-19 | Mikuni Adec Corp | インタンク式電磁燃料ポンプ |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29509774U1 (de) * | 1995-03-23 | 1995-09-14 | Pierburg Gmbh, 41460 Neuss | Brennstoffversorgungssystem für Brennkraftmaschinen |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5044344A (en) * | 1989-10-16 | 1991-09-03 | Walbro Corporation | Pressure-responsive fuel delivery system |
FR2695964B1 (fr) * | 1992-09-24 | 1995-07-21 | Walbro Corp | Circuit de distribution de carburant pour moteur a combustion interne. |
-
1996
- 1996-07-09 DE DE19627579A patent/DE19627579A1/de not_active Withdrawn
-
1997
- 1997-04-11 EP EP97105983A patent/EP0822330B1/de not_active Expired - Lifetime
- 1997-04-11 ES ES97105983T patent/ES2157496T3/es not_active Expired - Lifetime
- 1997-04-11 DE DE59703650T patent/DE59703650D1/de not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29509774U1 (de) * | 1995-03-23 | 1995-09-14 | Pierburg Gmbh, 41460 Neuss | Brennstoffversorgungssystem für Brennkraftmaschinen |
Also Published As
Publication number | Publication date |
---|---|
ES2157496T3 (es) | 2001-08-16 |
EP0822330A2 (de) | 1998-02-04 |
DE19627579A1 (de) | 1998-01-15 |
EP0822330A3 (de) | 1998-03-18 |
DE59703650D1 (de) | 2001-07-05 |
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