DE10062708A1 - Flame cage for sheathed-element flame glow plugs of Diesel engines is funnel-shaped, of wire mesh, and encloses flame cage - Google Patents

Flame cage for sheathed-element flame glow plugs of Diesel engines is funnel-shaped, of wire mesh, and encloses flame cage

Info

Publication number
DE10062708A1
DE10062708A1 DE10062708A DE10062708A DE10062708A1 DE 10062708 A1 DE10062708 A1 DE 10062708A1 DE 10062708 A DE10062708 A DE 10062708A DE 10062708 A DE10062708 A DE 10062708A DE 10062708 A1 DE10062708 A1 DE 10062708A1
Authority
DE
Germany
Prior art keywords
flame
cage
funnel
wire mesh
suction
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Withdrawn
Application number
DE10062708A
Other languages
German (de)
Inventor
Frank Lantermann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Deutz AG
Original Assignee
Deutz AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Deutz AG filed Critical Deutz AG
Priority to DE10062708A priority Critical patent/DE10062708A1/en
Publication of DE10062708A1 publication Critical patent/DE10062708A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N19/00—Starting aids for combustion engines, not otherwise provided for
    • F02N19/02—Aiding engine start by thermal means, e.g. using lighted wicks
    • F02N19/04—Aiding engine start by thermal means, e.g. using lighted wicks by heating of fluids used in engines
    • F02N19/06—Aiding engine start by thermal means, e.g. using lighted wicks by heating of fluids used in engines by heating of combustion-air by flame generating means, e.g. flame glow-plugs
    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
    • F02M35/10144—Connections of intake ducts to each other or to another device
    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10209—Fluid connections to the air intake system; their arrangement of pipes, valves or the like
    • F02M35/10216—Fuel injectors; Fuel pipes or rails; Fuel pumps or pressure regulators
    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
    • F02M35/10268—Heating, cooling or thermal insulating means
    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
    • F02M35/10281—Means to remove, re-atomise or redistribute condensed fuel; Means to avoid fuel particles from separating from the mixture
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P19/00—Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • 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)
  • Processes For Solid Components From Exhaust (AREA)

Abstract

The flame starting system has a flame glow plug (1) and associated fuel supply (2) in a suction/charging air line (3). The glow plug is enclosed by a flame cage (4), which is fastened to the suction/air line. The cage has a funnel-shaped profile, and consists of wire mesh.

Description

Die Erfindung betrifft eine Flammstartanlage zur Vorwärmung der An­ saugluft für Dieselmotoren, mit einer Flammglühkerze und zugehöri­ ger Kraftstoffzufuhr in der Saug- oder Ladeluftleitung.The invention relates to a flame start system for preheating the suction air for diesel engines, with a flame glow plug and associated Fuel supply in the suction or charge air line.

Als Kaltstarthilfe für Dieselmotoren werden Flammstartanlagen mit Flammglühkerzen verwendet, die in der Saug- oder Ladeluftleitung angeordnet sind. Flammglühkerzen brennen mit dem sich in der An­ saugluft befindenden Sauerstoff. Speziell bei Motoren mit kleinem Hubraum ergibt sich das Problem, dass der verbleibende Sauerstoff­ gehalt der Ansaugluft für die motorische Verbrennung nicht mehr aus­ reicht. Da der Kraftstoff-Durchfluss der Flammglühkerzen nicht belie­ big abgesenkt werden kann (Durchmesser der Drosselbohrung), er­ gibt sich eine Ausführungsgrenze für Flammglühkerzen von etwa 6 ccm/min bei 1,5 bar. Durch eine Absenkung des Kraftstoffdruckes kann der Durchfluss bis zur Entflammungsgrenze reduziert werden. Bei minimaler Flammengröße und deren Sauerstoffverbrauch ergibt sich eine Anwendungsbeschränkung für Motoren mit Hubräume ober­ halb etwa 4 Liter.Flame start systems are also used as a cold start aid for diesel engines Flame glow plugs used in the suction or charge air line are arranged. Flame glow candles burn with the in the An suction air. Especially for small engines Displacement gives rise to the problem that the remaining oxygen content of the intake air for engine combustion no longer enough. Because the fuel flow of the flame glow plugs is not sufficient big can be lowered (diameter of the throttle bore), he there is an execution limit for flame glow plugs of around 6 ccm / min at 1.5 bar. By lowering the fuel pressure the flow can be reduced to the ignition limit. With minimum flame size and their oxygen consumption results there is an application restriction for engines with cubic capacity half about 4 liters.

Der Erfindung liegt die Aufgabe zugrunde, eine Flammstartanlage nach dem Oberbegriff des Anspruchs 1 so zu verbessern, dass diese auch an Motoren mit kleineren Hubräumen sicher eingesetzt werden kann. The invention has for its object a flame start system to improve according to the preamble of claim 1 so that this can also be used safely on engines with smaller displacements can.  

Erfindungsgemäß wird diese Aufgabe dadurch gelöst, dass die Flammglühkerze von einem Flammenkäfig umgeben ist.According to the invention this object is achieved in that the Flame glow plug is surrounded by a flame cage.

Durch den Flammenkäfig wird das starke Hineinbrennen der Flamme in die sauerstoffhaltige Ansaugluft verhindert, da diese stabil im Flammenkäfig gehalten ist und nur den Sauerstoff verbrennt, der mit dem Ansaugluftstrom durch den Käfig geführt wird.Through the flame cage is the strong burning of the flame prevented in the oxygen-containing intake air, since it is stable in the Flame cage is held and only burns the oxygen that comes with the intake air flow is led through the cage.

Zweckmäßigerweise ist der Flammenkäfig an der Saug- oder Lade­ luftleitung befestigt.The flame cage is expediently on the suction or drawer air line attached.

In bevorzugter Ausführungsform ist der Flammenkäfig im Schnitt trichterförmig ausgebildet.In a preferred embodiment, the flame cage is in section funnel-shaped.

Bevorzugt besteht der Flammenkäfig aus einem Drahtgewebe.The flame cage preferably consists of a wire mesh.

Der Flammenkäfig muss folgende Bedingungen erfüllen:
The flame cage must meet the following conditions:

  • - Die Maschenweite des Drahtgewebes muss so abgestimmt sein, dass einerseits die für die Verbrennung benötigte Luft in den Käfig eintreten kann und andererseits die Flamme nicht hindurchbren­ nen kann.- The mesh size of the wire mesh must be coordinated that on the one hand the air needed for combustion in the cage can occur and on the other hand the flame does not burn through can.
  • - Die Geometrie des Käfigs muss so ausgeführt sein, dass eine si­ chere Flammenausbreitung möglich ist und der Strömungswider­ stand nicht zu groß ist.- The geometry of the cage must be designed so that a si Chere flame spread is possible and the flow resistance was not too big.
  • - Der Flammenkäfig muss sicher in der Saug- oder Ladeluftleitung befestigt sein und die Flammglühkerze vollständig umschließen.- The flame cage must be secure in the suction or charge air line be attached and completely enclose the flame glow plug.
  • - Für den Flammenkäfig muss ein geeignetes Material verwendet werden, welches temperaturbeständig, korrosionsbeständig und eine ausreichende mechanische Festigkeit aufweist.- A suitable material must be used for the flame cage which are temperature-resistant, corrosion-resistant and has sufficient mechanical strength.

Weitere Merkmale der Erfindung ergeben sich aus der Beschreibung des nachfolgenden erfindungsgemäßen Ausführungsbeispiels und der zugehörigen Figuren.Further features of the invention result from the description of the following embodiment of the invention and the associated figures.

Fig. 1 zeigt eine erfindungsgemäße Flammstartanlage mit einer Flammglühkerze 1 in einer Saug- oder Ladeluftleitung 3. Mit dem Be­ zugszeichen 2 ist der Anschlussflansch für die Kraftstoffzufuhr an der Flammglühkerze 1 bezeichnet. Der elektrische Anschluss erfolgt über den Stecker bzw. die Klemme 5. Fig. 1 shows a flame starting system according to the invention with a flame glow plug 1 in a suction or charge air line 3. With the reference numeral 2 , the connecting flange for the fuel supply to the flame glow plug 1 is designated. The electrical connection is made via the plug or terminal 5 .

Die Flammglühkerze 1 ist von einem Flammenkäfig 4 vollständig um­ geben, wobei der Flammenkäfig 4 aus einem Drahtgewebe besteht. Hierdurch wird das starke Hineinbrennen der Flamme in die Ansaug­ luft vermieden.The flame glow plug 1 is completely by a flame cage 4 , whereby the flame cage 4 consists of a wire mesh. This avoids the strong burning of the flame into the intake air.

Der Flammenkäfig 4 ist im Schnitt trichterförmig ausgebildet, damit sich die Flamme im Inneren des Flammenkäfigs 4 sicher ausbreiten kann und der Flammenkäfig 4 möglichst wenig Platz in der Saug- oder Ladeluftleitung 3 benötigt.The flame cage 4 is funnel-shaped in section so that the flame can spread safely inside the flame cage 4 and the flame cage 4 requires as little space as possible in the suction or charge air line 3 .

Befestigt ist der Flammenkäfig 4 an der Saug- oder Ladeluftleitung 3 bzw. an einer eingebauten Flanschverbindung.The flame cage 4 is attached to the suction or charge air line 3 or to an installed flange connection.

Fig. 2 zeigt den Flammenkäfig 4 als Einzelteil mit seiner im Schnitt trichterförmigen oder konischen Ausbildung, wobei an seinem oberen der Flammglühkerze 1 zugewandten Ende ein Befestigungsflansch 6 mit zwei Bohrungen zur Verankerung angeordnet ist. Das untere En­ de 7 des Flammenkäfigs 4 ist offen, d. h. dort ist kein Drahtgewebe angeordnet. Fig. 2 shows the flame cage 4 as an individual part with its funnel-shaped or conical design in section, wherein at its upper end facing the flame glow plug 1 a mounting flange 6 is arranged with two holes for anchoring. The lower En de 7 of the flame cage 4 is open, that is, no wire mesh is arranged there.

Claims (4)

1. Flammstartanlage zur Vorwärmung der Ansaugluft für Dieselmoto­ ren, mit einer Flammglühkerze (1) und zugehöriger Kraftstoffzufuhr (2) in der Saug- oder Ladeluftleitung (3), dadurch gekennzeichnet, dass die Flammglühkerze (1) von einem Flammenkäfig (4) umgeben ist.1. Flame start system for preheating the intake air for diesel engines, with a flame glow plug ( 1 ) and associated fuel supply ( 2 ) in the suction or charge air line ( 3 ), characterized in that the flame glow plug ( 1 ) is surrounded by a flame cage ( 4 ) , 2. Flammstartanlage nach Anspruch 1, dadurch gekennzeichnet, dass der Flammenkäfig (4) an der Saug- oder Ladeluftleitung (3) befestigt ist.2. Flame start system according to claim 1, characterized in that the flame cage ( 4 ) on the suction or charge air line ( 3 ) is attached. 3. Flammstartanlage nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Flammenkäfig (4) im Schnitt trich­ terförmig ausgebildet ist.3. Flame start system according to claim 1 or 2, characterized in that the flame cage ( 4 ) is formed in the shape of a funnel. 4. Flammstartanlage nach Anspruch 3, dadurch gekennzeichnet, dass der Flammenkäfig (4) aus einem Drahtgewebe besteht.4. Flame start system according to claim 3, characterized in that the flame cage ( 4 ) consists of a wire mesh.
DE10062708A 2000-12-15 2000-12-15 Flame cage for sheathed-element flame glow plugs of Diesel engines is funnel-shaped, of wire mesh, and encloses flame cage Withdrawn DE10062708A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE10062708A DE10062708A1 (en) 2000-12-15 2000-12-15 Flame cage for sheathed-element flame glow plugs of Diesel engines is funnel-shaped, of wire mesh, and encloses flame cage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10062708A DE10062708A1 (en) 2000-12-15 2000-12-15 Flame cage for sheathed-element flame glow plugs of Diesel engines is funnel-shaped, of wire mesh, and encloses flame cage

Publications (1)

Publication Number Publication Date
DE10062708A1 true DE10062708A1 (en) 2002-06-20

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DE10062708A Withdrawn DE10062708A1 (en) 2000-12-15 2000-12-15 Flame cage for sheathed-element flame glow plugs of Diesel engines is funnel-shaped, of wire mesh, and encloses flame cage

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Country Link
DE (1) DE10062708A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013075562A1 (en) * 2011-11-24 2013-05-30 深圳市新光里科技有限公司 Wind-warmed fuel oil volatilizing heater

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1526773B1 (en) * 1966-10-12 1972-07-06 Beru Werk Ruprecht Gmbh Co A GLOW PLUG

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1526773B1 (en) * 1966-10-12 1972-07-06 Beru Werk Ruprecht Gmbh Co A GLOW PLUG

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
MTZ - Motortechnische Zeitschrift 52, 1991, 10, S.516 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013075562A1 (en) * 2011-11-24 2013-05-30 深圳市新光里科技有限公司 Wind-warmed fuel oil volatilizing heater

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8139 Disposal/non-payment of the annual fee