DE10355039A1 - Electric heater for fuel injection valve has an electric element embedded in ceramic and applied to a ceramic rod positioned centrally in the fuel supply duct - Google Patents
Electric heater for fuel injection valve has an electric element embedded in ceramic and applied to a ceramic rod positioned centrally in the fuel supply duct Download PDFInfo
- Publication number
- DE10355039A1 DE10355039A1 DE10355039A DE10355039A DE10355039A1 DE 10355039 A1 DE10355039 A1 DE 10355039A1 DE 10355039 A DE10355039 A DE 10355039A DE 10355039 A DE10355039 A DE 10355039A DE 10355039 A1 DE10355039 A1 DE 10355039A1
- Authority
- DE
- Germany
- Prior art keywords
- fuel injection
- injection valve
- fuel
- ceramic
- valve according
- 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.)
- Granted
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
- F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
- F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
- F02M31/16—Other apparatus for heating fuel
- F02M31/18—Other apparatus for heating fuel to vaporise fuel
-
- 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
- F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
- F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
- F02M31/12—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating electrically
-
- 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
- F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
- F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
- F02M31/16—Other apparatus for heating fuel
-
- 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
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/005—Arrangement of electrical wires and connections, e.g. wire harness, sockets, plugs; Arrangement of electronic control circuits in or on fuel injection apparatus
-
- 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
- F02M53/00—Fuel-injection apparatus characterised by having heating, cooling or thermally-insulating means
- F02M53/04—Injectors with heating, cooling, or thermally-insulating means
- F02M53/06—Injectors with heating, cooling, or thermally-insulating means with fuel-heating means, e.g. for vaporising
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Die Erfindung geht aus von einem Kraftstoffeinspritzventil nach dem Oberbegriff des Anspruchs 1.The The invention is based on a fuel injection valve after Preamble of claim 1.
Bei
einem bekannten Kraftstoffeinspritzventil für fremdgezündete Brennkraftmaschinen (
Ein
ebenfalls bekanntes Kraftstoffeinspritzventil (
Ein
bekanntes Sensorelement für
einen elektrochemischen Messfühler,
insbesondere für
eine Lambdasonde zur Bestimmung der Sauerstoffkonzentration im Abgas
von Brennkraftmaschinen (
Vorteile der ErfindungAdvantages of invention
Das erfindungsgemäße Kraftstoffeinspritzventil mit den Merkmalen des Anspruchs 1 hat den Vorteil, dass durch den Einbau eines Heizelements, das einen bei Lambdasonden bekannten Aufbau aufweist, in das Kraftstoffeinspritzventil eine deutlich verbesserte Heizleistung zur Vorwärmung des Kraftstoffs erreicht wird. Das Heizelement kann auf 100 – 150°C mit einer sehr schnellen Aufheizrampe aufgeheizt werden, so dass es bereits nach 1 bis 1,5 sek. die Betriebstemperatur erreicht. Der vorbeiströmende Kraftstoff wird dadurch rasch erwärmt, wodurch seine Zerstäubung am Austritt des Kraftstoffeinspritzventils sehr viel feiner wird und eine niedrige Abgasemission auch bei Kaltstart sehr schnell erreicht wird. Außerdem wird durch die verbesserte Vorwärmung des Kraftstoffs auch die Startfähigkeit von Brennkraftmaschinen, die mit Kraftstoff betrieben werden, die einen hohen Ethanolgehalt aufweisen, deutlich verbessert. Das Heizelement hat eine hohe Standfestigkeit und ist mit niedrigen Gestehungskosten zu realisieren, so dass die Fertigungskosten des erfindungsgemäßen Kraftstoffeinspritzventils gegenüber den bekannten Kraftstoffeinspritzventilen mit Kraftstoffvorwärmung deutlich reduziert sind.The Fuel injection valve according to the invention with the features of claim 1 has the advantage that by the Installation of a heating element, the one known in lambda probes Structure, in the fuel injection valve, a significantly improved Heating power for preheating of the fuel is achieved. The heating element can be heated to 100 - 150 ° C with a heated up very fast heating ramp, so it already after 1 to 1.5 sec. the operating temperature is reached. The passing fuel is thereby heated rapidly, causing his atomization becomes much finer at the exit of the fuel injector and a low exhaust emission even at cold start very fast is reached. Furthermore is due to the improved preheating of the Fuel also the starting ability of internal combustion engines that are fueled by a high ethanol content, significantly improved. The heating element has a high stability and is low cost realize, so that the manufacturing cost of the fuel injection valve according to the invention across from the well-known fuel injection valves with fuel preheating clearly are reduced.
Durch die in den weiteren Ansprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen des im Anspruch 1 angegebenen Kraftstoffeinspritzventils möglich.By in the further claims listed activities are advantageous developments and improvements of the claim 1 specified fuel injection valve possible.
Gemäß einer bevorzugten Ausführungsform der Erfindung ist dem Ventilgehäuse eine Verlängerungs- oder Distanzhülse mit einem Kraftstoff-Zuführkanal vorgesetzt und das Heizelement koaxial im Kraftstoff-Zuführkanal angeordnet. Distanzhülsen werden zur geometrischen Anpassung der Kraftstoffeinspritzventile an unterschiedliche Einbauverhältnisse und zur Verbindung mit einem Kraftstoffverteiler verwendet, wobei die Länge der Distanzhülsen individuell zugeschnitten werden. Die Anordnung des Heizelements innerhalb der Distanzhülse, und zwar direkt in dessen Kraftstoff-Zuführkanal, hat den Vorteil, dass der Kraftstoff direkt und über eine größere Fließstrecke hinweg mit dem Heizelement in Wärmekontakt ist und dadurch schnell und gleichmäßig erwärmt wird. Darüber hinaus bietet der Einbau des Heizelements in die Distanzhülse den Vorteil, dass am Kraftstoffeinspritzventil selbst keine Änderungen vorgenommen werden müssen und der Einbau des Heizelements in die Distanzhülse im Gegensatz zur Integration in das Ventilgehäuse völlig unproblematisch ist, da in der Distanzhülse – anders als im Ventilgehäuse – ausreichend Einbauraum vorhanden ist.According to one preferred embodiment of Invention is the valve housing an extension or spacer sleeve with a fuel supply channel preset and the heating element coaxial in the fuel supply passage arranged. Spacers are for the geometric adjustment of the fuel injection valves to different installation conditions and used for connection to a fuel rail, wherein the length the spacer sleeves be tailored individually. The arrangement of the heating element within the spacer sleeve, and directly in the fuel supply channel, has the advantage that the fuel directly and over a larger flow path away with the heating element in thermal contact is and thereby heated quickly and evenly. Furthermore the installation of the heating element in the spacer sleeve offers the Advantage that made no changes to the fuel injector itself Need to become and the installation of the heating element in the spacer sleeve as opposed to integration in the valve body completely unproblematic is, as in the spacer sleeve - unlike in the valve body - sufficient Installation space is available.
Zeichnungdrawing
Die Erfindung ist anhand eines in der Zeichnung dargestellten Ausführungsbeispiels im folgenden näher beschrieben. Es zeigen:The Invention is based on an embodiment shown in the drawing closer in the following described. Show it:
Beschreibung des Ausführungsbeispielsdescription of the embodiment
Das
in
Zur
schnellen Vorwärmung
des aus dem Kraftstoffeinspritzventil ausgespritzten Kraftstoffs
auf ca. 100 – 150°C, die wesentlich
zur Verbesserung der Kraftstoffzerstäubung und damit zur Reduzierung von
Abgasemissionen beiträgt,
ist im Kraftstoff-Zuführkanal
Das
in
Bei
dem in
Claims (10)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10355039.9A DE10355039B4 (en) | 2003-11-25 | 2003-11-25 | Fuel injection valve |
BRPI0405136-0A BRPI0405136B1 (en) | 2003-11-25 | 2004-11-23 | FUEL INJECTOR VALVE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10355039.9A DE10355039B4 (en) | 2003-11-25 | 2003-11-25 | Fuel injection valve |
Publications (2)
Publication Number | Publication Date |
---|---|
DE10355039A1 true DE10355039A1 (en) | 2005-06-23 |
DE10355039B4 DE10355039B4 (en) | 2017-09-14 |
Family
ID=34609271
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE10355039.9A Expired - Fee Related DE10355039B4 (en) | 2003-11-25 | 2003-11-25 | Fuel injection valve |
Country Status (2)
Country | Link |
---|---|
BR (1) | BRPI0405136B1 (en) |
DE (1) | DE10355039B4 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2311571A3 (en) * | 2009-10-15 | 2013-05-22 | BorgWarner BERU Systems GmbH | Electrically heated spray nozzle |
CN104033301A (en) * | 2013-03-06 | 2014-09-10 | Dr.Ing.h.c.F.保时捷股份公司 | Heatable injector for fuel injection in an internal combustion engine |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2057972C3 (en) * | 1970-11-25 | 1975-06-26 | Robert Bosch Gmbh, 7000 Stuttgart | Cold start fuel injection device designed for spark ignition internal combustion engines |
US6102303A (en) * | 1996-03-29 | 2000-08-15 | Siemens Automotive Corporation | Fuel injector with internal heater |
US5758826A (en) * | 1996-03-29 | 1998-06-02 | Siemens Automotive Corporation | Fuel injector with internal heater |
DE19629589B4 (en) * | 1996-07-23 | 2007-08-30 | Robert Bosch Gmbh | Fuel injector |
DE19803562B4 (en) * | 1998-01-30 | 2011-06-01 | Robert Bosch Gmbh | sensor element |
DE10004313B4 (en) * | 2000-02-01 | 2005-02-10 | Robert Bosch Gmbh | Diesel fuel injector |
-
2003
- 2003-11-25 DE DE10355039.9A patent/DE10355039B4/en not_active Expired - Fee Related
-
2004
- 2004-11-23 BR BRPI0405136-0A patent/BRPI0405136B1/en not_active IP Right Cessation
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2311571A3 (en) * | 2009-10-15 | 2013-05-22 | BorgWarner BERU Systems GmbH | Electrically heated spray nozzle |
CN104033301A (en) * | 2013-03-06 | 2014-09-10 | Dr.Ing.h.c.F.保时捷股份公司 | Heatable injector for fuel injection in an internal combustion engine |
DE102013102219A1 (en) * | 2013-03-06 | 2014-09-11 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Heatable injector for fuel injection in an internal combustion engine |
US8955766B2 (en) | 2013-03-06 | 2015-02-17 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Heatable injector for fuel injection in an internal combustion engine |
CN104033301B (en) * | 2013-03-06 | 2016-08-24 | Dr.Ing.h.c.F.保时捷股份公司 | In explosive motor for fuel injection can heated injectors |
DE102013102219B4 (en) | 2013-03-06 | 2020-08-06 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Heated injector for fuel injection in an internal combustion engine |
Also Published As
Publication number | Publication date |
---|---|
DE10355039B4 (en) | 2017-09-14 |
BRPI0405136A (en) | 2005-07-19 |
BRPI0405136B1 (en) | 2018-05-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
R084 | Declaration of willingness to licence |
Effective date: 20110516 Effective date: 20110706 |
|
R079 | Amendment of ipc main class |
Free format text: PREVIOUS MAIN CLASS: F02M0057000000 Ipc: F02M0053060000 |
|
R016 | Response to examination communication | ||
R018 | Grant decision by examination section/examining division | ||
R020 | Patent grant now final | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |