DE102008041506A1 - Hydraulically controlled dosing valve for high pressure fuel pump of internal combustion engine of motor vehicle, has closing element removed from valve seat during decrease in pressure in control space - Google Patents
Hydraulically controlled dosing valve for high pressure fuel pump of internal combustion engine of motor vehicle, has closing element removed from valve seat during decrease in pressure in control space Download PDFInfo
- Publication number
- DE102008041506A1 DE102008041506A1 DE200810041506 DE102008041506A DE102008041506A1 DE 102008041506 A1 DE102008041506 A1 DE 102008041506A1 DE 200810041506 DE200810041506 DE 200810041506 DE 102008041506 A DE102008041506 A DE 102008041506A DE 102008041506 A1 DE102008041506 A1 DE 102008041506A1
- Authority
- DE
- Germany
- Prior art keywords
- valve
- pressure
- valve seat
- pressure relief
- control room
- 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- Withdrawn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
- 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
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/20—Varying fuel delivery in quantity or timing
-
- 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
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/20—Varying fuel delivery in quantity or timing
- F02M59/36—Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages
-
- 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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
- F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
-
- 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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
- F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
- F02M63/023—Means for varying pressure in common rails
Abstract
Description
Technisches GebietTechnical area
Die Erfindung geht aus von einem hydraulisch geregelten Zumessventil für die Hochdruckkraftstoffpumpe einer Verbrennungskraftmaschine nach der Gattung des Anspruchs 1.The Invention is based on a hydraulically controlled metering valve for the high-pressure fuel pump of an internal combustion engine according to the preamble of claim 1.
Stand der TechnikState of the art
Eine
solche Vorrichtung ist aus der
In Abhängigkeit von der Drehzahl benötigt eine Verbrennungskraftmaschine unterschiedlich große Kraftstoffmengen. Um bei allen Betriebszuständen hinreichende Kraftstoffmengen im Hochdruckkraftstoffspeicher zur Verfügung zu haben, ist die Hochdruckpumpe auf den größtmöglichen Bedarf der zugehörigen Verbrennungskraftmaschine ausgelegt. Dies bedingt allerdings den Nachteil, dass im Teillastbereich unnötig große Kraftstoffmengen in das Hochdruckkraftstoffspeicher gefördert und über das Druckregelventil in den Kraftstofftank zurückgeleitet werden, was energetisch wenig befriedigend ist. Um diesen Nachteil zu vermeiden, wird die der Hochdruckpumpe zugeführte Kraftstoffmenge mit Hilfe der Zumesseinheit in Abhängigkeit vom jeweiligen Bedarf dosiert. Das Druckregelventil und das Zumessventil sind unabhängige, separate Funktionseinheiten. Dies erhöht das Risiko, dass im Hochdruckkraftstoffspeicher ein Überdruck auftritt und dass druckbedingte, mechanische Schäden an dem Hochdruckkraftstoffspeicher, den Verbindungsleitungen und/oder der Zumessventil auftreten können.In Depending on the speed requires an internal combustion engine different amounts of fuel. In all operating conditions Sufficient fuel quantities in the high pressure fuel storage for To have available, the high pressure pump is on the largest possible Need of the associated internal combustion engine designed. However, this requires the disadvantage that unnecessary in the partial load range large amounts of fuel in the high-pressure fuel storage promoted and via the pressure control valve in the Fuel tank to be returned, which energetically little is satisfactory. To avoid this disadvantage, the High-pressure pump supplied amount of fuel using the metering unit dosed depending on the particular requirement. The pressure control valve and the metering valve are independent, separate functional units. This increases the risk of high pressure fuel storage an overpressure occurs and that pressure-related, mechanical Damage to the high-pressure fuel storage, the connecting lines and / or the metering valve can occur.
Offenbarung der ErfindungDisclosure of the invention
Vorteile der ErfindungAdvantages of the invention
Das erfindungsgemäße Zumessventil gemäß Anspruch 1 hat den Vorteil eines vergleichsweise einfachen und robusten Aufbaus. In den abhängigen Ansprüchen sind vorteilhafte Ausgestaltungen und Weiterbildungen der erfindungsgemäßen Vorrichtung angegeben.The Metering valve according to the invention according to claim 1 has the advantage of a comparatively simple and robust construction. In the dependent claims are advantageous Embodiments and developments of the invention Device specified.
Die Ausgestaltung nach Anspruch 2 hat den Vorteil, dass durch einen Überdruck bedingte Schäden im Bereich des Ralls, der Leitungen und des Zumessventils nicht mehr auftreten können.The Embodiment according to claim 2 has the advantage that by an overpressure Conditional damage in the area of the Ralls, the lines and of the metering valve can no longer occur.
Die Ausgestaltung nach Anspruch 3 hat den Vorteil einer besonders guten Wirksamkeit bei einfachem Aufbau des Überdruckventils.The Embodiment according to claim 3 has the advantage of a particularly good Efficiency with a simple construction of the pressure relief valve.
Zeichnungdrawing
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen:One Embodiment of the invention is in the drawing shown and in the following description in more detail explained. Show it:
Beschreibung der AusführungsbeispieleDescription of the embodiments
In den Figuren bezeichnen übereinstimmende Bezugszeichen funktionell übereinstimmende Gegenstände.In the figures denote matching reference numerals functionally matching Items.
Die
in
Das hydraulisch geregelte Zumessventil
The hydraulically controlled metering valve
Wird
aus dem Hochdruckkraftstoffspeicher
Das
Schließglied
Das
Zumessventil
Der
Steuerkolben
Das
Auslassventil
Bei
einem störungsbedingten Überdruck in dem Hochdruckkraftstoffspeicher
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 19612412 B4A1 [0002] - DE 19612412 B4A1 [0002]
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810041506 DE102008041506A1 (en) | 2008-08-25 | 2008-08-25 | Hydraulically controlled dosing valve for high pressure fuel pump of internal combustion engine of motor vehicle, has closing element removed from valve seat during decrease in pressure in control space |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810041506 DE102008041506A1 (en) | 2008-08-25 | 2008-08-25 | Hydraulically controlled dosing valve for high pressure fuel pump of internal combustion engine of motor vehicle, has closing element removed from valve seat during decrease in pressure in control space |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102008041506A1 true DE102008041506A1 (en) | 2010-03-04 |
Family
ID=41605816
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200810041506 Withdrawn DE102008041506A1 (en) | 2008-08-25 | 2008-08-25 | Hydraulically controlled dosing valve for high pressure fuel pump of internal combustion engine of motor vehicle, has closing element removed from valve seat during decrease in pressure in control space |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102008041506A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012089403A1 (en) * | 2010-12-27 | 2012-07-05 | Robert Bosch Gmbh | Pressure control arrangement of a fuel injection system |
DE102011007182A1 (en) * | 2011-04-12 | 2012-10-18 | Continental Automotive Gmbh | Hydraulic conveying device i.e. fuel pump for storage/injection of fuel in internal combustion engine of car, has volume valve controlling flow of fluid from inlet to pumping element based on pressure prevailing in region of outlet |
EP2835526A1 (en) * | 2013-08-08 | 2015-02-11 | MAN Diesel & Turbo SE | Valve assembly for a fuel supply system and fuel supply system |
WO2016078849A1 (en) * | 2014-11-21 | 2016-05-26 | Robert Bosch Gmbh | Pressure control device, in particular for a high-pressure pump which delivers a fluid |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19612412B4 (en) | 1996-03-28 | 2006-07-06 | Siemens Ag | Control for a pressurized fluid supply system, in particular for the high pressure in a fuel injection system |
-
2008
- 2008-08-25 DE DE200810041506 patent/DE102008041506A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19612412B4 (en) | 1996-03-28 | 2006-07-06 | Siemens Ag | Control for a pressurized fluid supply system, in particular for the high pressure in a fuel injection system |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012089403A1 (en) * | 2010-12-27 | 2012-07-05 | Robert Bosch Gmbh | Pressure control arrangement of a fuel injection system |
DE102011007182A1 (en) * | 2011-04-12 | 2012-10-18 | Continental Automotive Gmbh | Hydraulic conveying device i.e. fuel pump for storage/injection of fuel in internal combustion engine of car, has volume valve controlling flow of fluid from inlet to pumping element based on pressure prevailing in region of outlet |
EP2835526A1 (en) * | 2013-08-08 | 2015-02-11 | MAN Diesel & Turbo SE | Valve assembly for a fuel supply system and fuel supply system |
CN104454277A (en) * | 2013-08-08 | 2015-03-25 | 曼柴油机和涡轮机欧洲股份公司 | Valve assembly for fuel supply system and the fuel supply system |
CN104454277B (en) * | 2013-08-08 | 2019-10-18 | 曼恩能源方案有限公司 | Valve gear and fuel feed system for fuel feed system |
WO2016078849A1 (en) * | 2014-11-21 | 2016-05-26 | Robert Bosch Gmbh | Pressure control device, in particular for a high-pressure pump which delivers a fluid |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20130301 |