DE102019208179A1 - Pump, especially high pressure fuel pump - Google Patents
Pump, especially high pressure fuel pump Download PDFInfo
- Publication number
- DE102019208179A1 DE102019208179A1 DE102019208179.7A DE102019208179A DE102019208179A1 DE 102019208179 A1 DE102019208179 A1 DE 102019208179A1 DE 102019208179 A DE102019208179 A DE 102019208179A DE 102019208179 A1 DE102019208179 A1 DE 102019208179A1
- Authority
- DE
- Germany
- Prior art keywords
- pump
- delivery
- piston
- control device
- inlet
- 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.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/0404—Details or component parts
- F04B1/0408—Pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/0404—Details or component parts
- F04B1/0413—Cams
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/053—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with actuating or actuated elements at the inner ends of the cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/06—Control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B7/00—Piston machines or pumps characterised by having positively-driven valving
- F04B7/0076—Piston machines or pumps characterised by having positively-driven valving the members being actuated by electro-magnetic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
- F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
- F04B9/042—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being cams
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/0404—Details or component parts
- F04B1/0426—Arrangements for pressing the pistons against the actuated cam; Arrangements for connecting the pistons to the actuated cam
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B2205/00—Fluid parameters
- F04B2205/09—Flow through the pump
Abstract
Die Pumpe wenigstens zwei Pumpenelemente (10, 12) auf, die jeweils einen in einer Hubbewegung angetriebenen Pumpenkolben (14, 16) aufweisen, die jeweils einen Pumpenarbeitsraum (30, 32) begrenzen. Die Pumpenarbeitsräume (30, 32) sind über jeweils ein elektrisch betätigbares Einlassventil (34, 36) mit einem Zulauf (38) verbindbar, wobei die Einlassventile (34, 36) durch eine elektronische Steuereinrichtung (52) angesteuert werden und die Einlassventile (34, 36) während des Förderhubs des jeweiligen Pumpenkolbens (14, 16) durch die Steuereinrichtung (52) zur Variation der Fördermenge des jeweiligen Pumpenkolbens (14, 16) ein Schließen der Einlassventile (34, 36) bewirkt werden kann. Die Durchmesser (d1, d2) der wenigstens zwei Pumpenkolben (14, 16) sind unterschiedlich groß. Je nach Fördermengenbedarf der Pumpe wird nur das Pumpenelement (10) mit dem kleinen Kolbendurchmesser oder das Pumpenelement (12) mit dem großen Kolbendurchmesser für die Förderung genutzt oder es werden alle Pumpenelemente (10, 12) zur Förderung genutzt.The pump has at least two pump elements (10, 12), each of which has a pump piston (14, 16) driven in a stroke movement, each delimiting a pump working space (30, 32). The pump working spaces (30, 32) can each be connected to an inlet (38) via an electrically actuated inlet valve (34, 36), the inlet valves (34, 36) being controlled by an electronic control device (52) and the inlet valves (34, 36) during the delivery stroke of the respective pump piston (14, 16) the control device (52) can cause the inlet valves (34, 36) to close in order to vary the delivery rate of the respective pump piston (14, 16). The diameters (d1, d2) of the at least two pump pistons (14, 16) are of different sizes. Depending on the delivery volume required by the pump, only the pump element (10) with the small piston diameter or the pump element (12) with the large piston diameter is used for delivery or all pump elements (10, 12) are used for delivery.
Description
Stand der TechnikState of the art
Die Erfindung geht aus von einer Pumpe, insbesondere Kraftstoffhochdruckpumpe, nach der Gattung des Anspruchs 1.The invention is based on a pump, in particular a high pressure fuel pump, according to the preamble of claim 1.
Eine solche Pumpe in Form einer Kraftstoffhochdruckpumpe ist durch die
Offenbarung der ErfindungDisclosure of the invention
Vorteile der ErfindungAdvantages of the invention
Die erfindungsgemäße Pumpe mit den Merkmalen gemäß Anspruch 1 hat demgegenüber den Vorteil, dass durch die unterschiedlichen Durchmesser der Pumpenkolben eine vergrößerte Flexibilität für das genutzte Fördervolumen vorhanden ist, da entweder nur das Pumpenelement mit dem im Durchmesser kleinen Pumpenkolben oder nur das Pumpenelement mit dem im Durchmesser größeren Pumpenkolben oder alle Pumpenelemente für die Förderung genutzt werden können. Außerdem kann die Belastung des Antriebs der Pumpe weiter verringert werden.The pump according to the invention with the features according to claim 1 has the advantage that due to the different diameters of the pump pistons there is increased flexibility for the delivery volume used, since either only the pump element with the small diameter pump piston or only the pump element with the diameter larger pump pistons or all pump elements can be used for the delivery. In addition, the load on the drive of the pump can be further reduced.
In den abhängigen Ansprüchen sind vorteilhafte Ausgestaltungen und Weiterbildungen der erfindungsgemäßen Pumpe angegeben. Die Ausbildung gemäß Anspruch 3 ermöglicht eine Anpassung der Fördermenge der Pumpe an einen geringen bis mittleren Fördermengenbedarf und dabei eine weitere Entlastung des Antriebs der Pumpe wenn in Teilen des Betriebsbereichs der Pumpe nur das Pumpenelement mit dem im Durchmesser kleinen Pumpenkolben für die Förderung genutzt wird. Durch den kleineren Durchmesser weist der Pumpenkolben eine geringere Masse auf, was zu einer entsprechenden Verringerung der Belastung des Antriebs führt. Die Ausbildung gemäß Anspruch 4 ermöglicht eine Anpassung der Fördermenge an einen erhöhten Fördermengenbedarf, wobei hier nur ein Pumpenelement für die Förderung genutzt zu werden braucht, was weiterhin eine Entlastung des Antriebs der Pumpe ermöglicht.In the dependent claims, advantageous refinements and developments of the pump according to the invention are specified. The design according to claim 3 enables the delivery rate of the pump to be adapted to a low to medium delivery rate requirement and thereby further relieves the drive of the pump if only the pump element with the small diameter pump piston is used for the delivery in parts of the operating range of the pump. Due to the smaller diameter, the pump piston has a lower mass, which leads to a corresponding reduction in the load on the drive. The embodiment according to claim 4 enables the delivery rate to be adapted to an increased delivery rate requirement, with only one pump element needing to be used for the delivery, which further enables the drive of the pump to be relieved.
Zeichnungdrawing
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen
Beschreibung des AusführungsbeispielsDescription of the embodiment
In
Die Pumpenkolben
Die Einlassventile
Durch die Schließ- bzw. Öffnungsdauer der Einlassventile
Erfindungsgemäß ist vorgesehen, dass der Durchmesser d1 des Pumpenkolbens
In
In
In
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDED 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 of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturPatent literature cited
- DE 102013212302 A1 [0002]DE 102013212302 A1 [0002]
Claims (6)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019208179.7A DE102019208179A1 (en) | 2019-06-05 | 2019-06-05 | Pump, especially high pressure fuel pump |
CN202080041257.5A CN113994090A (en) | 2019-06-05 | 2020-05-07 | Pump, in particular high-pressure fuel pump |
PCT/EP2020/062705 WO2020244882A1 (en) | 2019-06-05 | 2020-05-07 | Pump, in particular a high-pressure fuel pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019208179.7A DE102019208179A1 (en) | 2019-06-05 | 2019-06-05 | Pump, especially high pressure fuel pump |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102019208179A1 true DE102019208179A1 (en) | 2020-12-10 |
Family
ID=70617117
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102019208179.7A Pending DE102019208179A1 (en) | 2019-06-05 | 2019-06-05 | Pump, especially high pressure fuel pump |
Country Status (3)
Country | Link |
---|---|
CN (1) | CN113994090A (en) |
DE (1) | DE102019208179A1 (en) |
WO (1) | WO2020244882A1 (en) |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10355027A1 (en) * | 2003-11-25 | 2005-06-23 | Robert Bosch Gmbh | High-pressure pump, in particular for a fuel injection device of an internal combustion engine |
FR2903456B1 (en) * | 2006-07-07 | 2008-10-17 | Siemens Automotive Hydraulics | TRANSFER PUMP WITH MULTIPLE PISTONS |
JP4672640B2 (en) * | 2006-11-30 | 2011-04-20 | 三菱重工業株式会社 | Engine fuel injection apparatus and operation method |
DE102009003066A1 (en) * | 2009-05-13 | 2010-11-18 | Robert Bosch Gmbh | Piston machine, in particular liquid piston machine |
DE102011011750A1 (en) * | 2011-02-18 | 2012-08-23 | MAE Maschinen- u. Apparatebau Götzen GmbH | Accumulator-free hydraulic drive arrangement for and with a consumer, in particular for presses, and method for operating such an accumulatorless hydraulic drive assembly |
DE102013206025A1 (en) * | 2013-03-07 | 2014-09-11 | Robert Bosch Gmbh | High pressure pump for a fuel injection system |
DE102013212302A1 (en) | 2013-06-26 | 2014-12-31 | Robert Bosch Gmbh | High pressure pump and fuel injection system with a high pressure pump |
DE102014225982A1 (en) * | 2014-12-16 | 2016-06-16 | Robert Bosch Gmbh | Pump, in particular high-pressure fuel pump |
GB2549746B (en) * | 2016-04-27 | 2020-04-01 | Delphi Tech Ip Ltd | High pressure fuel pump |
GB2564686B (en) * | 2017-07-19 | 2019-12-25 | Delphi Tech Ip Ltd | Multi-head-pump for diesel injection equipment |
-
2019
- 2019-06-05 DE DE102019208179.7A patent/DE102019208179A1/en active Pending
-
2020
- 2020-05-07 WO PCT/EP2020/062705 patent/WO2020244882A1/en active Application Filing
- 2020-05-07 CN CN202080041257.5A patent/CN113994090A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
WO2020244882A1 (en) | 2020-12-10 |
CN113994090A (en) | 2022-01-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE4401074B4 (en) | Pump arrangement, in particular for conveying fuel from a reservoir to an internal combustion engine | |
EP1119704B1 (en) | Pump arrangement for providing fuel at high pressure | |
DE102005022661A1 (en) | Fluid pump e.g. fuel-high pressure pump, for use in fuel system of internal combustion engine, has volume control valve that includes valve mechanism arranged parallel to another valve mechanism in fluidic manner | |
DE102007010502A1 (en) | High-pressure fuel pump for internal-combustion engine, has pumping element for extracting fuel of suction pipe into pressure pipe, where pressure relief valve and throttle unit are connected in series in discharge line | |
DE10024268A1 (en) | Petrol fuel injection system is pressurized by converter connected to hydraulic oil system controlling engine valves | |
EP1392962B1 (en) | Fuel injection device with pressure translation device and pressure translation device | |
EP1273797B1 (en) | Fuel injection device | |
DE102008001890A1 (en) | High-pressure pump i.e. radial or tandem piston pump, for fuel i.e. diesel, injection system of air compressed, self ignition internal combustion engine, has aligning element for aligning tappet body in orientation at area | |
DE102008040452A1 (en) | High pressure pump for fuel injection device, particularly common rail injection system for injecting fuel into combustion chamber of internal combustion engine, has compressor chamber that is connected to storage space | |
DE102015213322A1 (en) | Fuel injection system | |
DE102019208179A1 (en) | Pump, especially high pressure fuel pump | |
DE102008000711A1 (en) | high pressure pump | |
DE102014211472A1 (en) | Fluid pump | |
DE102018201742A1 (en) | Fuel delivery device for cryogenic fuels | |
EP1203882A2 (en) | Injector | |
DE102018217677A1 (en) | Device for influencing, in particular reducing pressure pulsations in a hydraulic system | |
WO2001042651A1 (en) | Radial piston pump | |
EP1798415B1 (en) | High pressure pump | |
DE19946842C2 (en) | high pressure pump | |
DE10305011A1 (en) | High-pressure pump for an internal combustion engine's fuel injection device has a drive shaft to rotate on bearings in a casing | |
DE102007030224A1 (en) | Fuel pump, particularly for fuel system of internal combustion engine, has two valve units, which are coupled with each other that movement of former valve unit in opening direction produces closing movement of latter valve unit | |
DE102008041393A1 (en) | Fuel system for internal combustion engine, has fuel pump connector with pump body with common rail, to which multiple injectors are connected | |
DE102022201334A1 (en) | Pump, in particular high-pressure fuel pump | |
DE102013215953A1 (en) | high pressure pump | |
DE102016213035A1 (en) | Fuel delivery device for an internal combustion engine |