DE743329C - Cooling of the injection valves in fuel injection engines operated with heavy fuel - Google Patents

Cooling of the injection valves in fuel injection engines operated with heavy fuel

Info

Publication number
DE743329C
DE743329C DEK158114D DEK0158114D DE743329C DE 743329 C DE743329 C DE 743329C DE K158114 D DEK158114 D DE K158114D DE K0158114 D DEK0158114 D DE K0158114D DE 743329 C DE743329 C DE 743329C
Authority
DE
Germany
Prior art keywords
cooling
fuel
injection
injection valves
engines operated
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.)
Expired
Application number
DEK158114D
Other languages
German (de)
Inventor
Dr-Ing Thomas Schmidt
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.)
Kloeckner Humboldt Deutz AG
Original Assignee
Kloeckner Humboldt 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 Kloeckner Humboldt Deutz AG filed Critical Kloeckner Humboldt Deutz AG
Priority to DEK158114D priority Critical patent/DE743329C/en
Application granted granted Critical
Publication of DE743329C publication Critical patent/DE743329C/en
Expired legal-status Critical Current

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
    • F02M53/00—Fuel-injection apparatus characterised by having heating, cooling or thermally-insulating means
    • F02M53/04—Injectors with heating, cooling, or thermally-insulating means
    • F02M53/043—Injectors with heating, cooling, or thermally-insulating means with cooling means other than air cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/12—Arrangements for cooling other engine or machine parts
    • F01P3/16—Arrangements for cooling other engine or machine parts for cooling fuel injectors or sparking-plugs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P2003/005—Liquid cooling the liquid being fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2050/00—Applications
    • F01P2050/02—Marine engines
    • F01P2050/06—Marine engines using liquid-to-liquid heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
    • F01P7/165—Controlling of coolant flow the coolant being liquid by thermostatic control characterised by systems with two or more loops
    • 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
    • F02M2700/00—Supplying, feeding or preparing air, fuel, fuel air mixtures or auxiliary fluids for a combustion engine; Use of exhaust gas; Compressors for piston engines
    • F02M2700/07—Nozzles and injectors with controllable fuel supply
    • F02M2700/077—Injectors having cooling or heating means

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)

Description

Kühlung der Einspritzventile bei mit Schweröl betriebenen Einspritzbrennkraftmaschinen Die Erfindung betrifft eine Kühlung der Einspritzventile mit einem im Kreislauf durch ihre Kühlräume über einen Rückkühler geführten Kühlmittel, z. B. Gasöl, bei Einspritzbrennkraftmaschinen. Die Erfindung besteht darin. daß der Rückkühler für das Kühlmittel der Einspritzventile im Kühlwasserstrom der Maschine hinter dem Austritt desselben aus den Kühlräumen angeordnet ist. -Durch diese Anordnung des Rückkühlers wird ein besonderer Kühlmittelstrom für denselben erspart. Gleichzeitig wird erreicht, daß die Mindesttemperatur der Einspritzventile nicht unter die des Kühlwassers der Maschine sinkt, so da.ß bei mit Schwerölen betriebenen Maschinen die Einspritzventile auch bei Leerlaufbetrieb mit Sicherheit auf einer Temperatur gehalten werden, bei der das; Schweröl die für einen einwandfreien Betrieb erforderliche Dünnflüssigkeit aufweist.Cooling of the injection valves in internal combustion engines operated with heavy fuel oil The invention relates to a cooling of the injection valves with one in the circuit coolant passed through their cold rooms via a recooler, e.g. B. gas oil Internal combustion engines. The invention consists in this. that the dry cooler for the coolant of the injection valves in the cooling water flow of the machine downstream of the outlet the same is arranged from the cold stores. -By this arrangement of the dry cooler a special coolant flow for the same is saved. At the same time it is achieved that the minimum temperature of the injectors does not fall below that of the cooling water of the The machine sinks, so that the injection valves in machines operated with heavy fuel oils can be kept at a certain temperature even when idling the that; Heavy oil is the thin liquid required for proper operation having.

In der Zeichnung ist ein Ausführungsbeispiel des Erfindungsgegenstandes planmäßig dargestellt.The drawing shows an exemplary embodiment of the subject matter of the invention shown as planned.

Die Brennstoffeinspritzventile ,a1 bis at sind in an sich bekannter Weise mit ihren Kühlräumen in seinen Kühlkreislauf b eingeschaltet. Das Kühlmittel, vorzugsweise Gasöl, -wird in dem Kreislauf b durch eine Pumpe c umgewälzt und gelangt; nachdem es die Einspritzventile durchströmt hat, in einen Rückkühler d. Der Rückkühler d ist im Kühl.--vasserstrom der Maschine/ hinter dem Austritte desselben aus den Kühlräumen angeordnet, so daß also das Kühlmittel für die Einspritzventile von dem Maschinenkühlwasser rückgekühlt -wird. Da, der Kühlwasserumlauf der Maschine meistens wärmeempfindlich geregelt wird oder ständiger Aufsicht unterliegt, um das Kühlwasser auf der für einen wirtschaftlichen Betrieb der Maschine erforderlichen Temperatur von 6o bis 8o' zu halten, so ist gleichzeitig gewährleistet, daß auch: die Einspritzventile keine niedrigere Temperatur annehmen können, was beim Betrieb der Maschine mit Schweröl insofern vorteilhaft ist, als dasselbe auch bei längerem Leerlaufbetrieb innerhalb des Einspritzventils nicht zähflüssig werden und das Ventil verkleben kann.The fuel injection valves a1 to at are switched on in a manner known per se with their cooling chambers in its cooling circuit b. The coolant, preferably gas oil, is circulated and arrives in circuit b by a pump c; after it has flowed through the injection valves, into a dry cooler d. The recooler d is arranged in the cooling water flow of the machine / behind its outlet from the cooling chambers, so that the coolant for the injection valves is recooled by the machine cooling water. Since the cooling water circulation of the machine is usually regulated in a heat-sensitive manner or is subject to constant supervision in order to keep the cooling water at the temperature of 6o to 8o 'required for economical operation of the machine, it is ensured at the same time that: the injection valves do not assume a lower temperature can, which is advantageous when the machine is operated with heavy fuel oil, as it cannot become viscous within the injection valve and the valve can stick together even during prolonged idling operation.

Bei Maschinen mit Durchflußkühlung wird der Rückkühler d immer hinter dem Kühlwasseraustritt aus der Maschine angeordnet. Bei Maschinen mit einem geschlossenen Kühl--vasserumlauf kann der Rückkühler auch an einer "anderen Stelle des Umlaufes angeordnet sein, z. B. vor dem Eintritt des Kühlwassers in die Maschine, weil auch die Temperatur des rückgekühlten Maschinenkühlwasser snoch genügend über der Temperatur liegt, bei der das Sch-veröl zähflüssig wird.In machines with throughflow cooling, the dry cooler d is always behind the cooling water outlet from the machine. For machines with a closed The recooler can also circulate cooling water at a "different point in the circuit be arranged, e.g. B. before the entry of the cooling water into the machine, because too the temperature of the recooled machine cooling water is still sufficiently above the temperature where the Sch-veröl becomes viscous.

Claims (1)

PATENTANSPRUCH: Kühlung der Einspritzventile mit einem im Kreislauf durch ihre Kühlräume geführten Kühlmittel bei mit Schweröl betriebenen Einspritzbrennkraftmaschirnen, dadurch gekennzeichnet, da.ß die von dem Kühlmittel aufgenommene Wärme in einem im Kühl-vasserstrom der Maschine hinter dem Austritt (e) aus den Kühlräumen angeordneten Rückkühler (d) abgegeben wird. Zur Abgrenzung des Erfindungsgegenstandes vom Stande der Technik sind im Erteilungsverfahren folgende Druckschriften in Betracht gezogen -worden: britische Patentschriften .... Nr. 262 130, 489 681; USA.-Patentschiift ....... Nr. 2 o6; 42 1. PATENT CLAIM: Cooling of the injection valves with a coolant circulated through their cooling chambers in the case of injection combustion engines operated with heavy oil, characterized in that the heat absorbed by the coolant is arranged in the cooling water flow of the machine behind the outlet (e) from the cooling chambers Dry cooler (d) is delivered. To distinguish the subject matter of the invention from the state of the art, the following documents were considered in the grant procedure: British patents .... No. 262 130, 489 681; USA.-Patentschiift ....... No. 2 o6; 42 1.
DEK158114D 1940-07-16 1940-07-16 Cooling of the injection valves in fuel injection engines operated with heavy fuel Expired DE743329C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK158114D DE743329C (en) 1940-07-16 1940-07-16 Cooling of the injection valves in fuel injection engines operated with heavy fuel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK158114D DE743329C (en) 1940-07-16 1940-07-16 Cooling of the injection valves in fuel injection engines operated with heavy fuel

Publications (1)

Publication Number Publication Date
DE743329C true DE743329C (en) 1943-12-23

Family

ID=7253825

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK158114D Expired DE743329C (en) 1940-07-16 1940-07-16 Cooling of the injection valves in fuel injection engines operated with heavy fuel

Country Status (1)

Country Link
DE (1) DE743329C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4829939A (en) * 1986-11-24 1989-05-16 Volvo Car B.V. Cooling system for a turbo-compressor
US8434457B2 (en) 2010-06-29 2013-05-07 Caterpillar Inc. System and method for cooling fuel injectors

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB262130A (en) * 1925-11-26 1927-06-30 Motorenfabrik Deutz Ag Improvements relating to injection nozzles for diesel engines
US2067421A (en) * 1933-05-29 1937-01-12 Reo Motor Car Co Cooling apparatus
GB489681A (en) * 1936-08-14 1938-08-02 Walther Voith Improvements in or relating to the cooling of hydraulic power transmitters on vehicles

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB262130A (en) * 1925-11-26 1927-06-30 Motorenfabrik Deutz Ag Improvements relating to injection nozzles for diesel engines
US2067421A (en) * 1933-05-29 1937-01-12 Reo Motor Car Co Cooling apparatus
GB489681A (en) * 1936-08-14 1938-08-02 Walther Voith Improvements in or relating to the cooling of hydraulic power transmitters on vehicles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4829939A (en) * 1986-11-24 1989-05-16 Volvo Car B.V. Cooling system for a turbo-compressor
US8434457B2 (en) 2010-06-29 2013-05-07 Caterpillar Inc. System and method for cooling fuel injectors

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