DE723802C - Device for cooling injection nozzles - Google Patents

Device for cooling injection nozzles

Info

Publication number
DE723802C
DE723802C DEO24685D DEO0024685D DE723802C DE 723802 C DE723802 C DE 723802C DE O24685 D DEO24685 D DE O24685D DE O0024685 D DEO0024685 D DE O0024685D DE 723802 C DE723802 C DE 723802C
Authority
DE
Germany
Prior art keywords
air
injection nozzles
cooling
outside air
machine
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
DEO24685D
Other languages
German (de)
Inventor
Friedrich Wilhelm
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.)
OESTERR SAURERWERKE AG
Original Assignee
OESTERR SAURERWERKE 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 OESTERR SAURERWERKE AG filed Critical OESTERR SAURERWERKE AG
Priority to DEO24685D priority Critical patent/DE723802C/en
Application granted granted Critical
Publication of DE723802C publication Critical patent/DE723802C/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
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0645—Details related to the fuel injector or the fuel spray
    • F02B23/066—Details related to the fuel injector or the fuel spray the injector being located substantially off-set from the cylinder centre axis
    • 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
    • F01P1/00—Air cooling
    • F01P1/06—Arrangements for cooling other engine or machine parts
    • F01P1/10—Arrangements for cooling other engine or machine parts for cooling fuel injectors or sparking-plugs
    • 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
    • F02B19/00—Engines characterised by precombustion chambers
    • 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
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • 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
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0675—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston the combustion space being substantially spherical, hemispherical, ellipsoid or parabolic
    • 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
    • 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
    • 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
    • F02M53/08—Injectors with heating, cooling, or thermally-insulating means with air cooling
    • 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
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0618—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston having in-cylinder means to influence the charge motion
    • F02B23/0621—Squish flow
    • 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
    • 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)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Description

Einrichtung zum Kühlen von Einspritzdüsen Die Wärmebelastung von Einspritzdüsen, die mit ihren empfindlichsten Teilen unmittelbar in den Brennraum ragen, wo Temperaturen bis zooo° C herrschen, ist außerordentlich hoch.Device for cooling injection nozzles The heat load on injection nozzles, which with their most sensitive parts protrude directly into the combustion chamber, where temperatures up to zooo ° C is extremely high.

Es sind bereits Ausführungen bekanntgeworden, insbesondere für langsam laufende Einspritzbrennkraftmaschinen, bei denen Flüssigkeitskühlung für die Einspritzdüsen angewendet wird.There are already versions known, especially for slow running internal combustion engines with liquid cooling for the injection nozzles is applied.

Bei rasch laufenden Motoren, besonders bei Fahrzeugdieselmotoren mit kleinen Gesamtabmessungen der Maschine und gedrängter Bauart der Einspritzdüsen, ist dieser Weg nicht gangbar. Ein unmittelbares Bespülen der Einspritzdüsen über einen mehr oder minder großen Teil der Länge des Düsenschaftes durch flüssige Kühlmittel ist aus dem Grunde nicht anwendbar, weil in diesem Falle der etwa notwendig werdende Ausbau einer Einspritzdüse das teilweise Ablassen des Kühlmittels aus der Maschine erfordern würde. Außer der Flüssigkeitskühlung ist auch die Kühlung der Düsen durch Luft an sich bereits bekanntgeworden, ebenso ist es allgemein bekannt, Kühlrippen anzublasen, d. h. sie im Wege eines Luftstromes anzuordnen. Die Wirkung der bekannten Luftkühlung wird gesteigert, und die genannten Nachteile der mit flüssigen Kühlmitteln betriebenen Kühleinrichtungen werden gemäß der Erfindung dadurch vermieden, daß, die Einspritzdüsen in dem Weg eines Luftstromes angeordnet sind, welcher der Maschine aus der Außenluft durch einen im Zylinderkopf vorgesehenen besonderen Kanal oder den Einströmkanal für die Ladeluft zugeführt wird.With fast running engines, especially with vehicle diesel engines small overall dimensions of the machine and compact design of the injection nozzles, this path is not feasible. An immediate flushing of the injectors over a more or less large part of the length of the nozzle shaft by liquid coolant is not applicable for the reason that in this case the one that may become necessary Removal of an injection nozzle and partial drainage of the coolant from the machine would require. In addition to the liquid cooling, the nozzles are also cooled Air has already become known per se, as is generally known cooling fins to blow, d. H. to arrange them in the way of an air stream. The effect of the well-known Air cooling is increased, and the disadvantages mentioned with liquid coolants operated cooling devices are avoided according to the invention in that, the injection nozzles are arranged in the path of an air flow which the engine from the outside air through a special duct provided in the cylinder head or the inflow channel for the charge air is supplied.

Abb. z zeigt einen Längsschnitt durch den oberen Teil des Zylinders und den Zylinderkopf mit parallel zur Zylinderachse liegender Einspritzdüse: Abb. a veranschaulicht einen Längsschnitt durch die gleiche Einrichtung, bei welcher jedoch die Düsenachse gegen die Zylinderachse geneigt ist. In Abb. i ist i die Einspritzdüse, welche im Zylinderkopf 2 in paralleler Lage zur Zylinderachse angeordnet ist. Gemäß der Erfindung sind bei diesem Ausführungsbeispiel um die Einspritzdüse .ein oder mehrere Hohlräume 3 angeordnet, die durch eine oder mehrere Öffnungen q. einerseits mit der Außenluft und andererseits durch eine oder mehrere Öffnungen 5 mit dem Kanal 6 des Einlafaventils verbunden sind, so daß infolge des im Einlaßkanal während des Ansaughubes herrschenden Unterdruckes Kühlluft in der Richtung des Pfeiles p durch die Kanäle 4. in die Hohlräume 3 und durch die Kanäle 5 in den Einlaßkanal6 übertritt.Fig. Z shows a longitudinal section through the upper part of the cylinder and the cylinder head with the injection nozzle lying parallel to the cylinder axis: Fig. a illustrates a longitudinal section through the same device in which however, the nozzle axis is inclined relative to the cylinder axis. In fig. i is i the injection nozzle, which is in the cylinder head 2 in a parallel position to the cylinder axis is arranged. According to the invention, in this embodiment are around the injection nozzle .One or more cavities 3 arranged through one or more openings q. on the one hand with the outside air and on the other hand through one or more openings 5 are connected to the channel 6 of the inlet valve, so that as a result of the in the inlet channel cooling air prevailing during the intake stroke in the direction of the arrow p through the channels 4 into the cavities 3 and through the channels 5 into the inlet channel 6 transgresses.

In Abb. 2 sind die gleichen Teile mit den gleichen Bezugszeichen bezeichnet.In Fig. 2, the same parts are denoted by the same reference numerals.

Auch hier findet in ähnlicher Weise wie bei der Einrichtung nach Abb. i während des Saughubes der Maschine eine kräftige Kühlung der Einspritzdüse statt.Here, too, in a manner similar to the setup according to Fig. i vigorous cooling of the injection nozzle takes place during the suction stroke of the machine.

Es ist ohne den Rahmen der Erfindung zu verlassen auch möglich, gemäß der Erfindung die Einspritzdüse entweder als Ganzes oder zweckmäßigerweise nur mit einem Teil ihrer Umfläche in den Weg eines Luftstromes anzuordnen, welcher der Maschine aus der Außenluft durch den Einströmkanal für die Ladeluft zugeführt wird.It is also possible according to FIG of the invention, the injection nozzle either as a whole or expediently only with to arrange a part of its surrounding area in the path of an air flow which the machine is supplied from the outside air through the inlet duct for the charge air.

Claims (3)

PATENTANSPRÜCHE: i. Einrichtung zum Kühlen von Einspritzdüsen, insbesondere für rasch laufende Einspritzbrennkraftmaschinen, bei welcher die Einspritzdüsen in dem Weg eines Luftstromes angeordnet sind, dadurch gekennzeichnet, daß; dieser der Maschine aus der Außenluft durch einen im Zylinderkopf (2) vorgesehenen Kanal zugeführt wird. PATENT CLAIMS: i. Device for cooling injection nozzles, in particular for high-speed internal combustion engines with injection nozzles placed in the path of an air stream, characterized in that; this the machine from the outside air through a duct provided in the cylinder head (2) is fed. 2. Einrichtung nach Anspruch i, dadurch gekennzeichnet, daß um die Einspritzdüse (i) ein oder mehrere Hohlräume (3) angeordnet sind, die durch eine oder mehrere Öffnungen (.4) einerseits mit der Außenluft und andererseits durch eine oder mehrere Öffnungen (5) mit dem Kanal (6) des Einlaßventils verbunden sind, derart, dafä infolge des im Einlaßkanal herrschenden Unterdruckes Kühlluft der Einspritzdüse entlang in den Einla.ßkanal übertritt (Abb. i und 2-). 2. Device according to claim i, characterized in that one or more cavities (3) are arranged around the injection nozzle (i), which through one or more openings (.4) on the one hand with the outside air and on the other hand through one or more openings (5 ) are connected to the channel (6) of the inlet valve in such a way that, as a result of the negative pressure prevailing in the inlet channel, cooling air passes along the injection nozzle into the inlet channel (Figs. i and 2-). 3. Einrichtung nach Anspruch i, dadurch gekennzeichnet, daß die Einspritzdüsen in dein Weg eines Luftstromes angeordnet sind, welcher der Maschine aus der Außenluft durch den Einströmkanal für die Ladeluft zugeführt wird.3. Establishment according to claim i, characterized in that the injection nozzles in your way one Air flow are arranged, which the machine from the outside air through the inflow duct for the charge air is supplied.
DEO24685D 1940-08-31 1940-08-31 Device for cooling injection nozzles Expired DE723802C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEO24685D DE723802C (en) 1940-08-31 1940-08-31 Device for cooling injection nozzles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEO24685D DE723802C (en) 1940-08-31 1940-08-31 Device for cooling injection nozzles

Publications (1)

Publication Number Publication Date
DE723802C true DE723802C (en) 1942-08-11

Family

ID=7356223

Family Applications (1)

Application Number Title Priority Date Filing Date
DEO24685D Expired DE723802C (en) 1940-08-31 1940-08-31 Device for cooling injection nozzles

Country Status (1)

Country Link
DE (1) DE723802C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1099789B (en) * 1952-04-16 1961-02-16 Gen Motors Corp Mixture-compressing, externally ignited internal combustion engine
DE19809175A1 (en) * 1998-03-04 1999-09-09 Schaeffler Waelzlager Ohg IC engine with solenoid valve unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1099789B (en) * 1952-04-16 1961-02-16 Gen Motors Corp Mixture-compressing, externally ignited internal combustion engine
DE19809175A1 (en) * 1998-03-04 1999-09-09 Schaeffler Waelzlager Ohg IC engine with solenoid valve unit

Similar Documents

Publication Publication Date Title
DE409919C (en) Two-stroke internal combustion engine with two opposing cylinders
DE723802C (en) Device for cooling injection nozzles
DE1300738B (en) Gas exchange system for internal combustion engines
EP0223767B1 (en) Two-stroke internal-combustion engine
DE862690C (en) Cooling air duct on the cylinder head of air-cooled internal combustion engines with an adjoining room
DE736047C (en) Four-stroke, self-igniting, air-compressing internal combustion engine
DE862076C (en) Air-cooled internal combustion engine with an adjoining room in the cylinder head
DE846635C (en) Fuel injector
DE711136C (en) Two-stroke twin-piston internal combustion engine
DE624323C (en) Valveless fuel injection engine
DE554118C (en) Cylinders for internal combustion engines with air-cooled coolants
DE572678C (en) Piston cooling for two-stroke engines with fan
DE454473C (en) Slot flushing device for two-stroke diesel engines, especially slow runners
DE564842C (en) Device for piston crown cooling of two-stroke internal combustion engines
DE504946C (en) Cylinders of internal combustion engines with air-cooled cooling pads
DE357333C (en) Device for air cooling the exhaust of explosion engines, especially for aircraft
DE667508C (en) Air-compressing injection internal combustion engine with self-ignition and a spherical or oval-shaped combustion chamber arranged in the cylinder head around the cylinder axis
DE859982C (en) Air-cooled internal combustion engine with an adjoining room in the cylinder head
DE692384C (en) Flushing channel arrangement for multi-cylinder two-stroke internal combustion engines
DE717080C (en) Rotary valve control for multi-cylinder engines
DE743417C (en) High-speed two-stroke internal combustion engine
DE903519C (en) Rotary valve for internal combustion engines, especially for motor vehicles
AT244109B (en) Cylinder head cooling for air-cooled gasoline or diesel internal combustion engines
AT224978B (en) Air-compressing, self-igniting internal combustion engine, in particular diesel engine
DE667397C (en) Air-cooled internal combustion engine for motor vehicles