WO2015177185A1 - Chambre de combustion - Google Patents

Chambre de combustion Download PDF

Info

Publication number
WO2015177185A1
WO2015177185A1 PCT/EP2015/061058 EP2015061058W WO2015177185A1 WO 2015177185 A1 WO2015177185 A1 WO 2015177185A1 EP 2015061058 W EP2015061058 W EP 2015061058W WO 2015177185 A1 WO2015177185 A1 WO 2015177185A1
Authority
WO
WIPO (PCT)
Prior art keywords
fuel
combustion chamber
ultrasonic signal
signal generator
fuel nozzle
Prior art date
Application number
PCT/EP2015/061058
Other languages
English (en)
Inventor
Gurkan GUNC
Original Assignee
Robert Bosch Gmbh
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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2015177185A1 publication Critical patent/WO2015177185A1/fr

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
    • F02B51/00—Other methods of operating engines involving pretreating of, or adding substances to, combustion air, fuel, or fuel-air mixture of the engines
    • F02B51/06—Other methods of operating engines involving pretreating of, or adding substances to, combustion air, fuel, or fuel-air mixture of the engines involving rays or sound waves
    • 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
    • F02M27/00—Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means, magnetism, rays, sound waves, or the like
    • F02M27/08—Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means, magnetism, rays, sound waves, or the like by sonic or ultrasonic waves
    • 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
    • F02B3/08—Methods of operating
    • 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
    • F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F02M69/04—Injectors peculiar thereto
    • F02M69/041—Injectors peculiar thereto having vibrating means for atomizing the fuel, e.g. with sonic or ultrasonic vibrations
    • 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

Definitions

  • the present invention relates to combustion chambers of diesel vehicles with direct injection and having ultrasonic signal generator.
  • the aim is to spray fuel in the form of small particles in order to increase efficiency.
  • the holes provided on the fuel nozzle are minimized and pressure is increased.
  • Another method for reducing the fuel into small particles is to send ultrasonic waves to the fuel.
  • ultrasonic signal generators are placed inside the fuel injectors.
  • the vibrations formed during the operation of said ultrasonic signal generators may lead to deterioration and failure of the pieces provided inside the injector.
  • the present invention relates to a combustion chamber embodiment for diesel engines with direct injection, for eliminating the above mentioned disadvantages and for bringing new advantages to the related technical field.
  • the main object of the present invention is to provide a combustion chamber embodiment where the fuel is pulverized by means of ultrasonic waves,
  • the present invention is a combustion chamber embodiment for diesel vehicles having ultrasonic signal generator in order to provide pulverization of the fuel.
  • the ultrasonic signal generator is provided on at least one of cylinder wall and of the piston.
  • at least one ultrasonic signal generator is provided corresponding to each hole provided on the fuel nozzle transferring fuel to the combustion chamber.
  • the ultrasonic signal generator is positioned in the directions of the fuel beams exiting the fuel nozzle.
  • the fuel beam exiting the fuel nozzle and the ultrasonic waves exiting the ultrasonic signal generator move in opposite directions on the same line.
  • combustion chamber (50) embodiment is explained with references to examples without forming any restrictive effect in order to make the subject more understandable.
  • fuel is sprayed through the fuel nozzle (30) to the combustion chamber (50) defined between the cylinder wall (10), the piston (20) and the fuel nozzle (30) in a similar manner to the prior art.
  • At least one ultrasonic signal generator (40) is positioned on the piston (20). Accordingly, the fuel beam (32), sprayed through the fuel nozzle (30), is guided towards the ultrasonic signal generator (40) positioned on the piston (20). In other words, the ultrasonic waves (41), transferred by the ultrasonic signal generator (40) by means of the fuel beam (32), move in opposite directions on the same line, and they penetrate into the fuel beam (32). Thus, the fuel is pulverized.
  • At least one ultrasonic signal generator (40) is positioned inside the cylinder wall (10). Accordingly, the fuel beam (32), sprayed through the fuel nozzle (30), is guided towards the ultrasonic signal generator (40) positioned on the cylinder wall (10). In other words, the ultrasonic waves (32) transferred by the ultrasonic signal generator (30) by means of the fuel beam (32) move in opposite directions on the same line, and they penetrate into the fuel beam (32). Thus, the fuel is pulverized.
  • ultrasonic signal generator (40) corresponding to each hole (31 ) on the fuel nozzle (30) through which fuel exits.
  • ultrasonic waves (41) can be generated in the direction of each fuel beam (32) exiting the fuel nozzle (30).
  • the ultrasonic signal generators (40) are provided on the cylinder wall (10) or on the piston (20), the vibration, which occurs during operation of the ultrasonic signal generator (40), does not give damage to the spraying system.
  • said embodiment can be applied by means of a revision which can be made in the present diesel vehicles with direct injection.
  • the protection scope of the present invention is set forth in the annexed Claims and cannot be restricted to the illustrative disclosures given above, under the detailed description. It is because a person skilled in the relevant art can obviously produce similar embodiments under the light of the foregoing disclosures, without departing from the main principles of the present invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

Selon un mode de réalisation, la présente invention concerne une chambre de combustion (50) destinée à des véhicules diesel, et comprenant un générateur de signaux ultrasonores (40) afin d'assurer la pulvérisation du combustible, caractérisée en ce que le générateur de signaux ultrasonores (40) est présent sur la paroi de cylindre (10) et/ou le piston (20).
PCT/EP2015/061058 2014-05-21 2015-05-20 Chambre de combustion WO2015177185A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2014/05669 2014-05-21
TR201405669 2014-05-21

Publications (1)

Publication Number Publication Date
WO2015177185A1 true WO2015177185A1 (fr) 2015-11-26

Family

ID=53191672

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2015/061058 WO2015177185A1 (fr) 2014-05-21 2015-05-20 Chambre de combustion

Country Status (1)

Country Link
WO (1) WO2015177185A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1054838A (fr) * 1951-02-05 1954-02-15 Daimler Benz Ag Moteur à combustion interne
DE958789C (de) * 1952-07-06 1957-02-21 Daimler Benz Ag Brennkraftmaschine mit Gemischregelung und mit Fremdzuendung des Gemisches
JPH0828275A (ja) * 1994-07-12 1996-01-30 Mitsubishi Heavy Ind Ltd 直接噴射式ディーゼル機関のピストン
US6450154B1 (en) * 2001-10-04 2002-09-17 Caterpillar Method for creating a homogeneous fuel charge in the combustion chamber through the use of ultrasound spray breakup
WO2008000096A1 (fr) * 2006-06-30 2008-01-03 Litens Automotive Partnership Procédé et système de modification et de régulation de combustion
DE102007003051A1 (de) * 2007-01-20 2008-07-24 Daimler Ag Kraftstoffzerstäuber

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1054838A (fr) * 1951-02-05 1954-02-15 Daimler Benz Ag Moteur à combustion interne
DE958789C (de) * 1952-07-06 1957-02-21 Daimler Benz Ag Brennkraftmaschine mit Gemischregelung und mit Fremdzuendung des Gemisches
JPH0828275A (ja) * 1994-07-12 1996-01-30 Mitsubishi Heavy Ind Ltd 直接噴射式ディーゼル機関のピストン
US6450154B1 (en) * 2001-10-04 2002-09-17 Caterpillar Method for creating a homogeneous fuel charge in the combustion chamber through the use of ultrasound spray breakup
WO2008000096A1 (fr) * 2006-06-30 2008-01-03 Litens Automotive Partnership Procédé et système de modification et de régulation de combustion
DE102007003051A1 (de) * 2007-01-20 2008-07-24 Daimler Ag Kraftstoffzerstäuber

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