DE19519390A1 - Double direct injector for diesel engines - Google Patents

Double direct injector for diesel engines

Info

Publication number
DE19519390A1
DE19519390A1 DE19519390A DE19519390A DE19519390A1 DE 19519390 A1 DE19519390 A1 DE 19519390A1 DE 19519390 A DE19519390 A DE 19519390A DE 19519390 A DE19519390 A DE 19519390A DE 19519390 A1 DE19519390 A1 DE 19519390A1
Authority
DE
Germany
Prior art keywords
injection
combustion chamber
double
fuel
diesel engines
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Withdrawn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
DE19519390A
Other languages
German (de)
Inventor
Heinz Keinert
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19519390A priority Critical patent/DE19519390A1/en
Publication of DE19519390A1 publication Critical patent/DE19519390A1/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Withdrawn legal-status Critical Current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
    • 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
    • F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
    • 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
    • F02B19/14—Engines characterised by precombustion chambers with compression 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
    • 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
    • F02B23/0663—Details related to the fuel injector or the fuel spray having multiple injectors per combustion chamber
    • 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
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/14—Direct injection into combustion chamber
    • 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

Abstract

The fuel mixt. injection is of double, direct type. The injection jets collide in the combustion chamber, due to the double arrangement of the injection nozzles in opposite configuration in the combustion chamber. The injection energy or the impact force is such as to provide a very fine fuel atomising and intensive swirling with the full vol. of compressed air. The accelerated mixt. formation and reduction of ignition delay reduce carbon deposition.

Description

Aufgrund seines Arbeitsprinzips kann der Dieselmotor auf eine Einspritzanlage nicht verzichten.Because of its working principle, the diesel engine can do not do without an injection system.

Man unterscheidet die direkte und die indirekte Einspritzmethode.A distinction is made between direct and indirect Injection method.

Nach neuestem Stand der Technik bevorzugt man, aufgrund der besseren Verbrauchswerte, mehr und mehr die direkte Einspritzung.State-of-the-art technology is preferred because of of better consumption values, more and more direct Injection.

Dabei kommen Mehrlochdüsen zur Anwendung mit bis zu zwölf Düsenbohrungen.Multi-hole nozzles are used with up to twelve nozzle holes.

Die Gemischaufbereitung hat sich dadurch zwar gebessert, obwohl sich der Brennraum immer noch in fette und magere Gemischzonen aufteilt.The mixture preparation has improved, although the combustion chamber is still in fat and lean Splits mixture zones.

Die, für eine optimale Verbrennung, erforderliche gleichmäßige Verteilung des Kraftstoffes in der Brennkammer findet auch bei der Mehrlochdüse nur unzureichend statt.The necessary for optimal combustion even distribution of fuel in the The combustion chamber is also only found in the multi-hole nozzle inadequate instead.

Die Doppeldirekteinspritzung bietet hierfür die beste Voraussetzung.The double direct injection offers the best prerequisite.

Claims (1)

Die Doppeldirekteinspritzung ist dadurch gekennzeichnet, daß die Einspritzungen im Brennraum aufeinanderprallen durch die zweifache Anordnung der Einspritzdüsen, die sich im Brennraum gegenüberstehen. Die Einspritzenergie bzw. Aufprallwucht führt zur allerfeinsten Zerstäubung des Kraftstoffes und zur intensivsten Verwirbelung mit der gesamten komprimierten Luft. Dies hat eine wesentlich reinere Verbrennung zur Folge gegenüber der herkömmlichen einfachen Methode. Die beschleunigte Gemischbildung mit der Verkürzung des Zündverzuges verringern das dieseltypische Risiko der Rußbildung. Der Motor wird sparsamer im Verbrauch.The double direct injection is characterized in that the injections in the combustion chamber collide due to the double arrangement of the injection nozzles that face each other in the combustion chamber. The injection energy or impact force leads to the finest atomization of the fuel and to the most intensive swirling with the entire compressed air. This results in a much cleaner combustion compared to the conventional simple method. The accelerated mixture formation with the shortening of the ignition delay reduce the typical diesel risk of soot formation. The engine becomes more economical in consumption.
DE19519390A 1995-05-26 1995-05-26 Double direct injector for diesel engines Withdrawn DE19519390A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19519390A DE19519390A1 (en) 1995-05-26 1995-05-26 Double direct injector for diesel engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19519390A DE19519390A1 (en) 1995-05-26 1995-05-26 Double direct injector for diesel engines

Publications (1)

Publication Number Publication Date
DE19519390A1 true DE19519390A1 (en) 1996-07-11

Family

ID=7762962

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19519390A Withdrawn DE19519390A1 (en) 1995-05-26 1995-05-26 Double direct injector for diesel engines

Country Status (1)

Country Link
DE (1) DE19519390A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60977C (en) * E. CAPITAINE in Eilenburg Device for the formation of petroleum dust in gas machines
DE3629437A1 (en) * 1986-08-29 1988-03-03 Elsbett L FUEL INJECTION FOR PISTON COMBUSTION ENGINE WITH SEVERAL INJECTORS

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60977C (en) * E. CAPITAINE in Eilenburg Device for the formation of petroleum dust in gas machines
DE3629437A1 (en) * 1986-08-29 1988-03-03 Elsbett L FUEL INJECTION FOR PISTON COMBUSTION ENGINE WITH SEVERAL INJECTORS

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP 62-223455 A.,In: Patents Abstracts of Japan, M-677,March 16,1988,Vol.12,No. 83 *

Similar Documents

Publication Publication Date Title
GB2127097A (en) I c engine fuel injector with air ejector
DE69909748T2 (en) COMBINED DIESEL STEAM CYCLING MACHINE
DE2324325B2 (en) Internal combustion engine with fuel injection into a prechamber or swirl chamber
DE3003411A1 (en) INJECTION AND MIXTURE FORMING METHOD AND DEVICE FOR CARRYING OUT THE SAME
EP0433868A1 (en) Combustion chamber for a gas turbine engine with air-supported nozzles for the atomization of fuel
DE19519390A1 (en) Double direct injector for diesel engines
JPS5549566A (en) Mixture feeding apparatus for interval combustion engine
DE3112617A1 (en) CHAMBER DEVICE WITH SHOCKWAVE SPRAYING
DE4404899A1 (en) Dual fuel IC engine ignition system
SE8203342L (en) IC engine with fuel injection - has specified angles between injection channel pairs to direct vapours to opposite sides of chamber
DE481152C (en) Heavy oil engine with jet atomization of the fuel in a compression chamber cut off by the working cylinder
DE3151293A1 (en) FUEL INJECTION SYSTEM FOR DIRECT FUEL INJECTION IN COMBUSTION ENGINES
DE3415905C2 (en)
DE867327C (en) Mixture-compressing two-stroke engine with internal mixture formation and external ignition
GB1499671A (en) Liquid atomising head
DE966933C (en) Pre-chamber diesel engine
AT391740B (en) Internal combustion engine operated with hydrogen
AT113915B (en) Heavy oil power engine with jet atomization of the fuel in a compression space constricted by the working cylinder.
DE10027452A1 (en) Direct fuel/air injection, for an IC motor, directs a cylindrical fuel jet stream at a recess in the piston head to be deflected in droplets to form a wall film for evaporation, giving improved performance on a part loading
DE458236C (en) Igniter for ignition chamber equal pressure machines
DE3140403A1 (en) METHOD AND DEVICE FOR IMPROVING THE COMBUSTION LEVEL OF A FUEL-AIR MIXTURE
DE596483C (en) Method for producing a combustion mixture for internal combustion engines
DE966393C (en) Injection engine with self-ignition
DE393657C (en) Injection internal combustion engine with a displacer seated on the piston
SU1377441A1 (en) Pintle-type atomizer

Legal Events

Date Code Title Description
OAV Applicant agreed to the publication of the unexamined application as to paragraph 31 lit. 2 z1
OR8 Request for search as to paragraph 43 lit. 1 sentence 1 patent law
8105 Search report available
8122 Nonbinding interest in granting licences declared
8110 Request for examination paragraph 44
8139 Disposal/non-payment of the annual fee