DE102014217388A1 - High-pressure fuel pump, in particular for a fuel injection device of an internal combustion engine - Google Patents
High-pressure fuel pump, in particular for a fuel injection device of an internal combustion engine Download PDFInfo
- Publication number
- DE102014217388A1 DE102014217388A1 DE102014217388.4A DE102014217388A DE102014217388A1 DE 102014217388 A1 DE102014217388 A1 DE 102014217388A1 DE 102014217388 A DE102014217388 A DE 102014217388A DE 102014217388 A1 DE102014217388 A1 DE 102014217388A1
- Authority
- DE
- Germany
- Prior art keywords
- pump
- cylinder bore
- space
- fuel
- sealing ring
- 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- Withdrawn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
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
- 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
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
- F02M59/442—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston means preventing fuel leakage around pump plunger, e.g. fluid barriers
-
- 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
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
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- 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
- F02M63/0012—Valves
- F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
- F02M63/0054—Check 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
- 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
- F04B1/0452—Distribution members, e.g. valves
-
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/90—Selection of particular materials
- F02M2200/9015—Elastomeric or plastic materials
Abstract
Die Pumpe weist wenigstens ein Pumpenelement (10) auf, das wiederum einen in einer Hubbewegung angetriebenen Pumpenkolben (12) aufweist, der in einer Zylinderbohrung (18) eines Gehäuseteils (20) der Pumpe verschiebbar geführt ist und in dieser einen Pumpenarbeitsraum (22) begrenzt. Der Pumpenkolben (12) ragt mit seinem dem Pumpenarbeitsraum (22) abgewandten Ende aus der Zylinderbohrung (18) herausragt. Das Gehäuseteil (20) weist einen den dem Pumpenarbeitsraum (22) abgewandten Endbereich der Zylinderbohrung (18) umgebenden zumindest annähernd zylinderförmigen Abschnitt (50) auf. Auf dem aus der Zylinderbohrung (18) ragenden Endbereich des Pumpenkolbens (12) ist ein Dichtring (52) angeordnet, der mit seinem Innenumfang mit einer Dichtlippe (54) am Pumpenkolben (12) anliegt. Der Dichtring (52) ist in einer den aus der Zylinderbohrung (18) ragenden Endbereich des Pumpenkolbens (12) umgebenden Aufnahme (58, 60) des Pumpengehäuseteils (20) angeordnet, wobei durch den Dichtring (52) und das Pumpengehäuseteil (20) zur Zylinderbohrung (18) hin ein Raum (74; 76) begrenzt ist, der mit einem Kraftstoffzulauf (26) verbunden ist. Der Kraftstoffzulauf (26) verläuft durch den Raum (74; 76), so dass in den Raum (74; 76) gelangender Leckagekraftstoff durch die Strömung im Kraftstoffzulauf (26) aus dem Raum (74; 76) abgeleitet wird.The pump has at least one pump element (10), which in turn has a pump piston (12) driven in a lifting movement, which is displaceably guided in a cylinder bore (18) of a housing part (20) of the pump and defines a pump working chamber (22) in said pump , The pump piston (12) projects with its end facing away from the pump working space (22) from the cylinder bore (18) protrudes. The housing part (20) has an at least approximately cylindrical section (50) surrounding the end of the cylinder bore (18) remote from the pump working space (22). On the from the cylinder bore (18) projecting end portion of the pump piston (12) a sealing ring (52) is arranged, which rests with its inner circumference with a sealing lip (54) on the pump piston (12). The sealing ring (52) is arranged in a receiving from the cylinder bore (18) projecting end portion of the pump piston (12) receiving (58, 60) of the pump housing part (20), wherein by the sealing ring (52) and the pump housing part (20) for Cylinder bore (18) towards a space (74, 76) is limited, which is connected to a fuel inlet (26). The fuel inlet (26) passes through the space (74; 76) so that leakage fuel entering the space (74; 76) is drained from the space (74; 76) by the flow in the fuel inlet (26).
Description
Die Erfindung geht aus von einer Kraftstoffhochdruckpumpe, insbesondere für eine Kraftstoffeinspritzeinrichtung einer Brennkraftmaschine nach der Gattung des Anspruchs 1. The invention relates to a high-pressure fuel pump, in particular for a fuel injection device of an internal combustion engine according to the preamble of claim 1.
Eine solche Kraftstoffhochdruckpumpe und eine Kraftstoffeinspritzeinrichtung ist durch die
Offenbarung der ErfindungDisclosure of the invention
Vorteile der ErfindungAdvantages of the invention
Die erfindungsgemäße Kraftstoffhochdruckpumpe mit den Merkmalen gemäß Anspruch 1 hat demgegenüber den Vorteil, dass die thermische Belastung des Dichtrings verringert ist, da der Raum ständig von Kraftstoff durchströmt ist und somit eventuell in den Raum gelangender Leckagekraftstoff zusammen mit dem durch den Kraftstoffzulauf strömenden Kraftstoff abgeführt wird. The high-pressure fuel pump according to the invention with the features of claim 1 has the advantage that the thermal load of the sealing ring is reduced, since the room is constantly flowed through by fuel and thus possibly reaching into the room leakage fuel is discharged together with the fuel flowing through the fuel inlet.
In den abhängigen Ansprüchen sind vorteilhafte Ausgestaltungen und Weiterbildungen der erfindungsgemäßen Kraftstoffhochdruckpumpe angegeben. Die Ausbildung gemäß Anspruch bietet den Vorteil, dass kein zusätzlicher Kraftstoffzulauf erforderlich ist. Durch die Ausbildung gemäß Anspruch 3 und insbesondere Anspruch 4 ist eine wirkungsvolle Durchströmung des gesamten Raums sichergestellt. Die Ausbildung gemäß Anspruch 6 ermöglicht eine ständige Durchströmung des Raums und damit eine Kühlung des Dichtelements unabhängig von der Kraftstoffförderung des Pumpenelements. In the dependent claims advantageous refinements and developments of the high-pressure fuel pump according to the invention are given. The embodiment according to claim offers the advantage that no additional fuel supply is required. Due to the design according to claim 3 and in particular claim 4 an effective flow through the entire space is ensured. The embodiment of claim 6 allows a constant flow through the space and thus cooling of the sealing element regardless of the fuel delivery of the pump element.
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 Pumpe weist ein Pumpengehäuse auf, das mehrteilig ausgebildet sein kann. Der Pumpenkolben
Der Pumpenkolben
Es ist ein Dichtring
Der Abschnitt
Der Dichtring
Zwischen der der Ringschulter
Erfindungsgemäß ist vorgesehen, dass ein Kraftstoffzulauf
Zusätzlich kann vorgesehen sein, dass von dem zweiten Zulaufabschnitt
Durch die Anlage des Außenmantels des Dichtrings
Beim Betrieb der Pumpe wird durch den Pumpenkolben
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES 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 of the documents listed by the applicant has been 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 PatentliteraturCited patent literature
- DE 102009000859 A1 [0002] DE 102009000859 A1 [0002]
Claims (7)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014217388.4A DE102014217388A1 (en) | 2014-09-01 | 2014-09-01 | High-pressure fuel pump, in particular for a fuel injection device of an internal combustion engine |
PCT/EP2015/066025 WO2016034316A1 (en) | 2014-09-01 | 2015-07-14 | High-pressure fuel pump, in particular for a fuel injection device of an internal combustion engine |
CN201580046931.8A CN106662062B (en) | 2014-09-01 | 2015-07-14 | High-pressure fuel pump, particularly for the fuel injection device of internal combustion engine |
KR1020177008956A KR20170044754A (en) | 2014-09-01 | 2015-07-14 | High-pressure fuel pump, in particular for a fuel injection device of an internal combustion engine |
JP2017511616A JP2017529485A (en) | 2014-09-01 | 2015-07-14 | High pressure fuel pump for internal combustion engines, especially for fuel injection devices |
EP15738071.8A EP3189227B1 (en) | 2014-09-01 | 2015-07-14 | High-pressure fuel pump, in particular for a fuel injection device of an internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014217388.4A DE102014217388A1 (en) | 2014-09-01 | 2014-09-01 | High-pressure fuel pump, in particular for a fuel injection device of an internal combustion engine |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102014217388A1 true DE102014217388A1 (en) | 2016-03-03 |
Family
ID=53546624
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102014217388.4A Withdrawn DE102014217388A1 (en) | 2014-09-01 | 2014-09-01 | High-pressure fuel pump, in particular for a fuel injection device of an internal combustion engine |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP3189227B1 (en) |
JP (1) | JP2017529485A (en) |
KR (1) | KR20170044754A (en) |
CN (1) | CN106662062B (en) |
DE (1) | DE102014217388A1 (en) |
WO (1) | WO2016034316A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016114148A1 (en) * | 2016-08-01 | 2018-02-01 | L'orange Gmbh | High pressure pump, in particular for fuel injection |
IT201700065545A1 (en) * | 2017-06-13 | 2018-12-13 | Bosch Gmbh Robert | PUMP UNIT FOR FUEL SUPPLY TO AN INTERNAL COMBUSTION ENGINE |
IT201700098475A1 (en) * | 2017-09-01 | 2019-03-01 | Bosch Gmbh Robert | PUMP UNIT FOR FUEL SUPPLY TO AN INTERNAL COMBUSTION ENGINE |
WO2021239785A1 (en) * | 2020-05-29 | 2021-12-02 | Liebherr-Components Deggendorf Gmbh | High-pressure pump |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009000859A1 (en) | 2009-02-13 | 2010-08-19 | Robert Bosch Gmbh | Fuel high pressure pump for use as plug-in pump for conveying fuel for common rail fuel injection system of internal combustion engine, has safety ring inserted into annular ring and projecting over annular ring in relaxed condition |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4215000B2 (en) * | 2005-01-19 | 2009-01-28 | 株式会社デンソー | High pressure pump |
JP5002351B2 (en) * | 2007-06-28 | 2012-08-15 | 本田技研工業株式会社 | Scooter type vehicle |
US7677872B2 (en) * | 2007-09-07 | 2010-03-16 | Gm Global Technology Operations, Inc. | Low back-flow pulsation fuel injection pump |
DE102008040452A1 (en) * | 2008-07-16 | 2010-01-21 | Robert Bosch Gmbh | 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 |
DE102008042649B4 (en) * | 2008-10-07 | 2017-07-27 | Robert Bosch Gmbh | Plug-in pump with integrated low-pressure pump |
US7827967B2 (en) * | 2008-10-23 | 2010-11-09 | Gm Global Technology Operations, Inc. | Low noise fuel pump with variable pressure regulation |
JP5321432B2 (en) * | 2009-12-03 | 2013-10-23 | 株式会社デンソー | Fuel supply device |
DE102010039211A1 (en) * | 2010-08-11 | 2012-02-16 | Robert Bosch Gmbh | Fuel injection system for internal combustion engine, has high-pressure pump comprising working area covered by pump cylinder head, where fuel is compressed in working area by pump piston actuated over roller plunger of pump camshaft |
JP5288058B1 (en) * | 2011-09-06 | 2013-09-11 | トヨタ自動車株式会社 | Fuel pump and fuel supply system for internal combustion engine |
DE102012218552B4 (en) * | 2012-10-11 | 2016-03-24 | Continental Automotive Gmbh | pump |
-
2014
- 2014-09-01 DE DE102014217388.4A patent/DE102014217388A1/en not_active Withdrawn
-
2015
- 2015-07-14 EP EP15738071.8A patent/EP3189227B1/en active Active
- 2015-07-14 JP JP2017511616A patent/JP2017529485A/en active Pending
- 2015-07-14 WO PCT/EP2015/066025 patent/WO2016034316A1/en active Application Filing
- 2015-07-14 CN CN201580046931.8A patent/CN106662062B/en active Active
- 2015-07-14 KR KR1020177008956A patent/KR20170044754A/en unknown
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009000859A1 (en) | 2009-02-13 | 2010-08-19 | Robert Bosch Gmbh | Fuel high pressure pump for use as plug-in pump for conveying fuel for common rail fuel injection system of internal combustion engine, has safety ring inserted into annular ring and projecting over annular ring in relaxed condition |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016114148A1 (en) * | 2016-08-01 | 2018-02-01 | L'orange Gmbh | High pressure pump, in particular for fuel injection |
IT201700065545A1 (en) * | 2017-06-13 | 2018-12-13 | Bosch Gmbh Robert | PUMP UNIT FOR FUEL SUPPLY TO AN INTERNAL COMBUSTION ENGINE |
IT201700098475A1 (en) * | 2017-09-01 | 2019-03-01 | Bosch Gmbh Robert | PUMP UNIT FOR FUEL SUPPLY TO AN INTERNAL COMBUSTION ENGINE |
WO2021239785A1 (en) * | 2020-05-29 | 2021-12-02 | Liebherr-Components Deggendorf Gmbh | High-pressure pump |
Also Published As
Publication number | Publication date |
---|---|
EP3189227A1 (en) | 2017-07-12 |
KR20170044754A (en) | 2017-04-25 |
JP2017529485A (en) | 2017-10-05 |
WO2016034316A1 (en) | 2016-03-10 |
CN106662062B (en) | 2019-07-26 |
CN106662062A (en) | 2017-05-10 |
EP3189227B1 (en) | 2019-02-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R005 | Application deemed withdrawn due to failure to request examination |