DE102007047425A1 - Control valve for a fuel injector - Google Patents
Control valve for a fuel injector Download PDFInfo
- Publication number
- DE102007047425A1 DE102007047425A1 DE200710047425 DE102007047425A DE102007047425A1 DE 102007047425 A1 DE102007047425 A1 DE 102007047425A1 DE 200710047425 DE200710047425 DE 200710047425 DE 102007047425 A DE102007047425 A DE 102007047425A DE 102007047425 A1 DE102007047425 A1 DE 102007047425A1
- Authority
- DE
- Germany
- Prior art keywords
- valve
- membrane
- control valve
- sleeve
- valve sleeve
- 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- Withdrawn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
- F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
- F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
- F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
-
- 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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
- F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
- F02M61/12—Other injectors with elongated valve bodies, i.e. of needle-valve type characterised by the provision of guiding or centring means for valve bodies
-
- 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
- F02M63/0038—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details rotary
-
- 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
- F02M63/004—Sliding valves, e.g. spool valves, i.e. whereby the closing member has a sliding movement along a seat for opening and closing
Abstract
Es wird ein Steuerventil für einen Kraftstoffinjektor mit einem Ventilstück (25) und einer Ventilhülse (26) vorgeschlagen. Die Ventilhülse (26) ist axial beweglich geführt und drückt mit einer Schließkraft gegen einen am Ventilstück (25) ausgebildeten Ventilsitz (30). Die Ventilhülse (26) ist mittels eines in axialer Richtung wirkenden elastischen Fixierelements (50) radial fixiert.A control valve for a fuel injector with a valve piece (25) and a valve sleeve (26) is proposed. The valve sleeve (26) is guided axially movable and presses with a closing force against a valve seat (25) formed valve seat (30). The valve sleeve (26) is radially fixed by means of an elastic fixing element (50) acting in the axial direction.
Description
Die Erfindung betrifft ein kraftausgeglichenes Steuerventil für einen Kraftstoffinjektor einer Brennkraftmaschine mit den Merkmalen des Oberbegriffs des Anspruchs 1.The The invention relates to a force-balanced control valve for a fuel injector of an internal combustion engine having the features of the preamble of claim 1.
Stand der TechnikState of the art
Ein
kraftausgeglichenes Steuerventil für einen Kraftstoffinjektor
ist aus
In
der
Um
den Druckstift am Ventilgehäuse zu positionieren, ist aus
der
Aufgabe der vorliegenden Erfindung ist es, die Ventilhülse in radialer Richtung zu fixieren.task The present invention is to the valve sleeve in radial Direction to fix.
Offenbarung der ErfindungDisclosure of the invention
Die Aufgabe der Erfindung wird mit den kennzeichnenden Merkmalen des Anspruchs 1 gelöst. Das zumindest in axiale Richtung elastische Fixierelement ermöglicht eine radiale Fixierung der Ventilhülse, wodurch die Sitzlinie des Ventilsitzes über die Betriebsdauer des Kraftstoffinjektors unverändert bleibt. Dadurch ist ein dichtes Schließen des Ventilsitzes auch über eine längere Betriebsdauer gewährleistet.The The object of the invention is with the characterizing features of Claim 1 solved. The at least in the axial direction elastic Fixing element allows a radial fixation of the valve sleeve, whereby the seat line of the valve seat over the service life the fuel injector remains unchanged. This is a tight closing of the valve seat also over ensures a longer service life.
Vorteilhafte Weiterbildungen der Erfindung sind durch die Maßnahmen der Unteransprüche möglich.advantageous Further developments of the invention are by the measures the dependent claims possible.
Zweckmäßigerweise ist das Fixierelement als eine Membran ausgebildet, die an einem innen liegenden Abschnitt mit der Ventilhülse und an einem außen liegenden Abschnitt mit einem gehäusefesten Bauteil verbunden ist. Die Fixierung der Membran am außen liegenden Abschnitt erfolgt zwischen dem Ventilstück und einem Gehäuseteil zur Aufnahme des Stellelements oder zwischen dem Injektorkörper und einem Gehäuseteil zur Aufnahme des Stellelements, wobei die Membran zwischen diesen Bauteilen verspannt ist. Zur Ausbildung einer entsprechenden axialen Auslenkung weist die Membran Aussparungen und/oder federnde Stege auf. Durch die Aussparungen kann außerdem der Kraftstoff im Niederduckraum durchströmen, wenn dieser bei geöffnetem Ventilsitz in das Niederruck-/Rücklaufsystem abfließt. Weiterhin kann es zur Verstärkung des axialen Federweges zweckmäßig sein, die Membran mit einer umlaufenden Sigge auszuführen. Die Membran kann aus einem metallischen Material und/oder aus faserverstärkten Kunststoffen besteht.Conveniently, the fixing element is formed as a membrane, which on a inside section with the valve sleeve and on an outside lying section connected to a housing-fixed component is. The fixation of the membrane on the outer section takes place between the valve piece and a housing part for receiving the actuating element or between the injector body and a housing part for receiving the actuating element, wherein the membrane is clamped between these components. For training a corresponding axial deflection, the membrane has recesses and / or resilient webs. In addition, through the recesses can the fuel in Niederduckraum flow through, if this with the valve seat open in the low pressure / return system flows. Furthermore, it can be used to amplify the Axial travel be expedient, the membrane to execute with a circulating Sigge. The membrane can be off a metallic material and / or fiber-reinforced Plastics exists.
Ausführungsbeispieleembodiments
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert.An embodiment of the invention is shown in the drawing and in the following Description explained in more detail.
Es zeigen:It demonstrate:
Der
den
Der
Ventilkörper
Das
Steuerventil
Das
Stellelement
Die
Ventilhülse
Beim
Ausführungsbeispiel in
Weitere
Ausführungsformen der Membran
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
- - EP 1612403 A1 [0002, 0003] - EP 1612403 A1 [0002, 0003]
- - DE 102006021736 [0003] - DE 102006021736 [0003]
- - DE 102006053128 [0004] - DE 102006053128 [0004]
Claims (7)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200710047425 DE102007047425A1 (en) | 2007-10-04 | 2007-10-04 | Control valve for a fuel injector |
PCT/EP2008/062331 WO2009043717A1 (en) | 2007-10-04 | 2008-09-17 | Control valve for a fuel injector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200710047425 DE102007047425A1 (en) | 2007-10-04 | 2007-10-04 | Control valve for a fuel injector |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102007047425A1 true DE102007047425A1 (en) | 2009-04-09 |
Family
ID=40352348
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200710047425 Withdrawn DE102007047425A1 (en) | 2007-10-04 | 2007-10-04 | Control valve for a fuel injector |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE102007047425A1 (en) |
WO (1) | WO2009043717A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011032770A1 (en) * | 2009-09-18 | 2011-03-24 | Robert Bosch Gmbh | Injector |
WO2011042239A1 (en) * | 2009-10-05 | 2011-04-14 | Robert Bosch Gmbh | Injector |
DE102011078564A1 (en) | 2011-07-04 | 2013-01-10 | Robert Bosch Gmbh | Control valve for a fuel injector and fuel injector |
DE102013211855A1 (en) | 2013-06-21 | 2014-12-24 | Robert Bosch Gmbh | Control valve for a fuel injector |
WO2015058929A1 (en) * | 2013-10-23 | 2015-04-30 | Robert Bosch Gmbh | Fuel injector |
DE102015203515A1 (en) * | 2015-02-27 | 2016-09-01 | Robert Bosch Gmbh | Partial pressure compensated pressure control valve for a high-pressure accumulator |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008040161A1 (en) * | 2008-07-04 | 2010-01-07 | Robert Bosch Gmbh | Solenoid valve for a fuel injector and fuel injector |
GB201513309D0 (en) * | 2015-07-29 | 2015-09-09 | Delphi Int Operations Lux Srl | Fuel injector |
CN217926124U (en) * | 2022-09-28 | 2022-11-29 | 中国船舶集团有限公司第七一一研究所 | Electronic control oil injector and internal combustion engine |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1612403A1 (en) | 2004-06-30 | 2006-01-04 | C.R.F. Societa' Consortile per Azioni | Servo valve for controlling an internal combustion engine fuel injector |
DE102006021736A1 (en) | 2006-05-10 | 2007-11-15 | Robert Bosch Gmbh | Fuel injector with pressure compensated control valve |
DE102006053128A1 (en) | 2006-11-10 | 2008-05-15 | Robert Bosch Gmbh | Injector for injecting fuel |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2936425A1 (en) * | 1979-09-08 | 1981-04-02 | Robert Bosch Gmbh, 7000 Stuttgart | ELECTROMAGNETICALLY ACTUABLE FUEL INJECTION VALVE |
DE2936853A1 (en) * | 1979-09-12 | 1981-04-02 | Robert Bosch Gmbh, 7000 Stuttgart | ELECTROMAGNETICALLY ACTUABLE VALVE |
DE102007018472A1 (en) * | 2007-04-19 | 2008-10-23 | Robert Bosch Gmbh | Fuel injector with solenoid valve |
-
2007
- 2007-10-04 DE DE200710047425 patent/DE102007047425A1/en not_active Withdrawn
-
2008
- 2008-09-17 WO PCT/EP2008/062331 patent/WO2009043717A1/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1612403A1 (en) | 2004-06-30 | 2006-01-04 | C.R.F. Societa' Consortile per Azioni | Servo valve for controlling an internal combustion engine fuel injector |
DE102006021736A1 (en) | 2006-05-10 | 2007-11-15 | Robert Bosch Gmbh | Fuel injector with pressure compensated control valve |
DE102006053128A1 (en) | 2006-11-10 | 2008-05-15 | Robert Bosch Gmbh | Injector for injecting fuel |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011032770A1 (en) * | 2009-09-18 | 2011-03-24 | Robert Bosch Gmbh | Injector |
WO2011042239A1 (en) * | 2009-10-05 | 2011-04-14 | Robert Bosch Gmbh | Injector |
DE102011078564A1 (en) | 2011-07-04 | 2013-01-10 | Robert Bosch Gmbh | Control valve for a fuel injector and fuel injector |
WO2013004457A1 (en) | 2011-07-04 | 2013-01-10 | Robert Bosch Gmbh | Control valve for a fuel injector and fuel injector |
DE102013211855A1 (en) | 2013-06-21 | 2014-12-24 | Robert Bosch Gmbh | Control valve for a fuel injector |
EP2816219A1 (en) | 2013-06-21 | 2014-12-24 | Robert Bosch Gmbh | Control valve for a fuel injector |
WO2015058929A1 (en) * | 2013-10-23 | 2015-04-30 | Robert Bosch Gmbh | Fuel injector |
DE102015203515A1 (en) * | 2015-02-27 | 2016-09-01 | Robert Bosch Gmbh | Partial pressure compensated pressure control valve for a high-pressure accumulator |
Also Published As
Publication number | Publication date |
---|---|
WO2009043717A1 (en) | 2009-04-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R012 | Request for examination validly filed |
Effective date: 20140327 |
|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |