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EP0118500A1 - Procede et dispositif pour dissoudre un gaz, notamment du bioxyde de carbone dans un combustible liquide, et le distribuer dans l'air de combustion a l'etat sature. - Google Patents

Procede et dispositif pour dissoudre un gaz, notamment du bioxyde de carbone dans un combustible liquide, et le distribuer dans l'air de combustion a l'etat sature.

Info

Publication number
EP0118500A1
EP0118500A1 EP83902808A EP83902808A EP0118500A1 EP 0118500 A1 EP0118500 A1 EP 0118500A1 EP 83902808 A EP83902808 A EP 83902808A EP 83902808 A EP83902808 A EP 83902808A EP 0118500 A1 EP0118500 A1 EP 0118500A1
Authority
EP
European Patent Office
Prior art keywords
fuel
gas
mixing
mixer
pressure
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.)
Granted
Application number
EP83902808A
Other languages
German (de)
English (en)
Other versions
EP0118500B1 (fr
Inventor
Wolfgang Schmidtke
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.)
Wolfgang Schmidtke Te Paderborn Bondsrepubliek Du
Original Assignee
ROMMENHOELLER KOHLENSAEURE
KOHLENSAUREWERKE C G ROMMENHOLLER 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 ROMMENHOELLER KOHLENSAEURE, KOHLENSAUREWERKE C G ROMMENHOLLER GmbH filed Critical ROMMENHOELLER KOHLENSAEURE
Priority to AT83902808T priority Critical patent/ATE30458T1/de
Publication of EP0118500A1 publication Critical patent/EP0118500A1/fr
Application granted granted Critical
Publication of EP0118500B1 publication Critical patent/EP0118500B1/fr
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
    • F02B51/00—Other methods of operating engines involving pretreating of, or adding substances to, combustion air, fuel, or fuel-air mixture of the engines
    • 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
    • F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K5/00—Feeding or distributing other fuel to combustion apparatus
    • F23K5/02—Liquid fuel
    • F23K5/08—Preparation of fuel
    • F23K5/10—Mixing with other fluids
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S261/00—Gas and liquid contact apparatus
    • Y10S261/07—Carbonators

Definitions

  • the invention relates to a method for distributing liquid fuel in combustion air, to which the fuel is mixed via a carburetor or injector.
  • the object is achieved in that in the fuel gas, preferably air and / or carbon dioxide at such a solution pressure / temperature condition, in which a higher solubility of the gas than under the mixed pressure / temperature state of the combustion air during the admixture is given in such a quantity ratio that the saturation quantity ratio at the mixed pressure / temperature condition is exceeded and this solution is fed to the gasifier or injector.
  • the method can be used for both explosion-type and continuous combustion systems. Depending on the application, different gas-fuel solutions can be used particularly advantageously.
  • Fuel is saturated under a pressure of several atmospheres.
  • a changeover or mixed operation with different o gases e.g. B. carbon dioxide
  • o gases e.g. B. carbon dioxide
  • the use of carbon dioxide can also be increased relatively under difficult operating conditions in which there is a tendency to knock 5.
  • the device for dissolving the gas is a closed unit which can be inserted in a simple manner into the fuel line.
  • the device is controlled on the basis of internally obtained criteria of the fuel flow and the saturation achieved. 5
  • the control criterion of the fuel metering is advantageously used for controlling the device for saturation.
  • a device for performing the method and the insertion in known combustion engines and systems is shown in Figures 1 to 7.
  • Fig. 1 shows a schematic representation of a device for dissolving gases in the fuel
  • Fig. 2 shows an alternative mixer to the system of Fig. 1;
  • Fig. 3 shows a further mixer for the plant of Fig. 1;
  • Fig. 4 shows the connection of the device
  • Fig. 5 shows the connection of the device of Fig. 1 to an injector engine
  • Fig. 6 shows the connection of the device of Fig. 1 to a heating burner
  • Fig. 7 shows the connection of the device of FIG. 1 to a jet engine.
  • the device for dissolving gases in fuels which is shown in FIG. 1, consists of an injector mixer 11, the nozzle 12 of which is supplied with the fuel via line 13.
  • the nozzle 12 is surrounded by a mixing chamber 311 into which the gas, here Compressed air or carbon dioxide is supplied via line 31.
  • a vertical cylindrical tube 15 Connected to the mixer 11 is a vertical cylindrical tube 15, in which the gas bubbles dissolve in the fuel in a swirl section 163.
  • the tube 15 is expediently dimensioned such that the height h of the swirl section 163 corresponds approximately to twice the diameter d and, at maximum fuel throughput, the gas bubbles have practically completely dissolved when the upper region is reached. Undissolved gas collects in the mixing dome 16l above the upper end of the pipe 15.
  • a housing 16 extends downward from the mixing dome 161, concentrically to the pipe 15, the diameter of which is selected such that in the discharge path 164 between the housing 16 and the pipe 15, the sinking speed of the fuel at maximum throughput is less than the rate of rise of the remaining gas bubbles which may still be present.
  • the fuel line 17 is connected, which leads to the so-called carburetor or the injection devices.
  • the housing 16 is made of glass or at least partially of glass.
  • the fuel is conveyed from the tank 40 with the pump 41 via a filter 42 in a known manner and under pressure through a fuel line 17.
  • connection 171a to which connection 17ld (FIGS. 4 to 7) is connected in known motors and combustion systems, the device with connection 171b and 171c is inserted, a check valve 44 being expediently installed in the lines 17 and 13 , so that the pressure in the housing 16 is always maintained in order to maintain the state of saturation of the fuel.
  • the carbon dioxide is fed from a pressure bottle 20 via a reducing valve 21 to a mixing line 26, and on the other hand, compressed air is filled into a storage container 22 with the compressor 23 and also fed to the mixing line 26 via a reducing valve 25 '. 5
  • a compressed air system is e.g. B. already in trucks, already available * Because of the relatively low air requirement, it is sufficient for a passenger car to load a reservoir each time with a compressor; or a small, separate compressor can be provided.
  • a manometer 27 is used to monitor the pressure in the mixing line 26.
  • the valve 28 opens the mixing line 26 to the metering device 29 by means of an operating signal, from which the check valve 30 opens the valve
  • Line 31 leads to the mixer 11.
  • their functions can also be carried out integrated in special components.
  • a separate valve 28 can be omitted in the inoperative state.
  • the storage container 22 can fall if a special compressor 23 which is always running is provided. If this is controllable, it can also take over the function of the dosing device 29.
  • the Dosungs ⁇ setting can be done once, z. B. on the basis of the observed bubble resolution before reaching the mixing dome 161.
  • the observation can also be carried out by a pressure meter 46 or a gas bubble sensor, e.g. B. a float or, as shown, a light barrier 50.51, which also offers the possibility of automatically regulating the dosage.
  • the signal line 461 or 511 is fed to a control device R and its signal is compared with a predetermined value, which corresponds to the presence of a small bubble flow compared to the bubble flow at the outlet of the mixer 11, and the metering device from the difference signal 29 controlled via line 291.
  • a return line 7 from the mixing dome 16l 5 via a further metering device 45 to the tank 40.
  • This metering device 45 is opened when a gas bubble that is large relative to normal operation has collected in the mixing dome 161, which is done automatically by means of line 451 by comparing the signal of the light barrier 50.5 " 1 with a correspondingly high comparison value.
  • the control of the gas volume flow can also be carried out by specifying a metering signal on the input lines 6 ⁇ b, 64b of the control device R, to which the said difference signal of the control deviation is added, provided that control is additionally provided.
  • FIG. 2 shows an alternative embodiment of the mixer 111, which is equipped with a sintered candle 314, through the pores of which the gas enters the mixing chamber 312 in fine bubbles.
  • the sintered body could also be provided flat on the bottom of the tube 15, through which the fuel enters laterally.
  • the mixer 112 which consists of a known static mixer, the mixing chamber 313 of which the gas and the fuel are supplied.
  • the selection between the different mixers 11, 111, 112 is expediently made in accordance with the pairing of the selected gas and the fuel and their properties, in particular with regard to contamination or clogging of the pores or nozzle.
  • the mixing ability is a selection criterion in the event of very different throughputs.
  • FIGS. 2 and 3 o The connections of the devices according to FIGS. 2 and 3 o are designated in accordance with those in FIG. 1.
  • the gas is generally dissolved in a
  • FIG. 4 shows how the device is inserted into a diesel engine 63.
  • the solution of diesel oil and air or carbon dioxide saturated at about 10 atmospheres is fed to the injection pump 60, from where it reaches the combustion chamber 62 through the injection nozzle 61. Since the compressed air, which may be additionally heated by the cylinder walls, has a high temperature, the solubility of the gas is exceeded despite the high pressure, and the solution is finely nebulized by the escaping gas. As a result, the cold start property in particular is significantly improved, and saturation with the readily soluble carbon dioxide is therefore recommended at the start. When the engine is warm, saturation with air is sufficient to improve the efficiency and reduce the harmful exhaust gases and soot formation.
  • valves 21 and 25 for carbon dioxide 5 and compressed air are advantageously reversed.
  • the control of the metering device 29 is fed directly via a signal line 60b from the metering control line 6 ⁇ a to the injection pump 60 a control signal from the control device R or the metering device 29.
  • OMP be set to an even lower air excess than in known engines of this type, which leads to a further increase in efficiency and a reduction in pollutant emissions.
  • the control signal for the metering device 29 occurs through the control signal of the fuel quantity divider; which is taken from line 64a via line 64b.
  • FIG. 6 A heating burner is shown in FIG. 6, in whose fuel line the device for dissolving gas is arranged upstream of the controlled valve 70. As soon as the pressurized solution from the burner nozzle 71 enters the combustion air, the fuel is finely divided by the released gas and mixed with the air flow. This effect is intensified by the retroreflection from the flame zone 73 into the mixing zone 731, since the heating releases further gas which separates the droplets again. 5
  • a flammable gas e.g. B, hydrogen, natural gas or propane gas can be dissolved in the fuel.
  • FIG. 7 shows a jet engine 83, in the fuel supply line of which the device for dissolving gas is inserted. Since the supply pressure of the nozzles 81 * is relatively high, a large amount of gas can be dissolved ge in the fuel and a substantial improvement in Ver ⁇ distribution of fuel during the residence time in the mixing zone 81 can be achieved. The radiant heat that comes from the flame zone 82 into the mixing zone 81 also contributes to this, which causes the fuel droplets to be divided again by the release of gas. A practically soot-free combustion and an increase in efficiency is achieved.
  • Carbon dioxide is particularly suitable for saturating the fuel because of its high solubility, and also a combustible gas because of its good ignitability, which largely prevents engine exposure.
  • the signals for controlling the metering of the gas flow and the corresponding control device can be configured electronically, mechanically, pneumatically, etc., depending on the metering devices given for the fuel.
  • the time pulses that serve to control the injection are also expediently used to control the metering device when using an electromagnetically controllable valve.
  • this rotation acts directly or via a cam on a mechanically acting metering device.
  • the rotation by a sensor, for. B. a potentiometer converted into an electrical signal and fed to an electronic control or regulating device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

Le procédé et dispositif permet de dissoudre un gaz, notamment du bioxyde de carbone ou de l'air comprimé, dans un combustible liquide dans des conditions de pression et de températures telles que lors de l'introduction de la solution saturée dans l'air de combustion celle-ci se disperse de façon fine et homogène. Le combustible est introduit dans le mélangeur (11) au moyen d'une pompe (41), le gaz est amené au moyen d'un dispositif de dosage (29). Le mélangeur (11) comporte une chambre tourbillonnaire (163), un dôme (161) de mélange et un conduit d'évacuation (164) qui alimente en solution dépourvue de bulles le carburateur ou injecteur d'un moteur à combustion ou d'une chambre de combustion. Le dispositif de dosage (29) intervient en fonction de la consommation de combustible et de la quantité de gaz mesurée dans le dôme de mélange (161) par un manomètre (46) ou un photosenseur (51).
EP83902808A 1982-09-04 1983-08-31 Procede et dispositif pour dissoudre un gaz, notamment du bioxyde de carbone dans un combustible liquide, et le distribuer dans l'air de combustion a l'etat sature Expired EP0118500B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83902808T ATE30458T1 (de) 1982-09-04 1983-08-31 Verfahren und vorrichtung zur loesung von gas, insbesondere kohlendioxid in fluessigem brennstoff und dessen verteilung in verbrennungsluft im uebersaettigtem zustand.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3232938A DE3232938C2 (de) 1982-09-04 1982-09-04 Verfahren und Vorrichtung zur Lösung von Gas, insbesondere Kohlendioxid in flüssigem Brennstoff und dessen Verteilung in Verbrennungsluft in übersättigtem Zustand
DE3232938 1982-09-04

Publications (2)

Publication Number Publication Date
EP0118500A1 true EP0118500A1 (fr) 1984-09-19
EP0118500B1 EP0118500B1 (fr) 1987-10-28

Family

ID=6172487

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83902808A Expired EP0118500B1 (fr) 1982-09-04 1983-08-31 Procede et dispositif pour dissoudre un gaz, notamment du bioxyde de carbone dans un combustible liquide, et le distribuer dans l'air de combustion a l'etat sature

Country Status (5)

Country Link
US (1) US4596210A (fr)
EP (1) EP0118500B1 (fr)
JP (1) JPS59501553A (fr)
DE (1) DE3232938C2 (fr)
WO (1) WO1984000996A1 (fr)

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US6607698B1 (en) * 1997-08-15 2003-08-19 Therox, Inc. Method for generalized extracorporeal support
RU2141053C1 (ru) * 1997-09-24 1999-11-10 Александр Алексеевич Нода Система питания двигателя внутреннего сгорания
AU2002300172B2 (en) * 1998-06-24 2004-12-02 N.V. Kema Device for compressing a gaseous medium and systems comprising such device
US6602467B1 (en) 1998-07-24 2003-08-05 Therox, Inc. Apparatus and method for blood oxygenation
AU2832100A (en) * 1999-02-24 2000-09-14 N.V. Kema Combustion unit for combusting a liquid fuel and a power generating system comprising such combustion unit
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PT1155225E (pt) 1999-02-24 2004-01-30 Kema Nv Unidade de combustao para inflamar um combustivel liquido e um sistema gerador de potencia compreendendo uma tal unidade de combustao
US6387324B1 (en) 1999-09-30 2002-05-14 Therox, Inc. Apparatus and method for blood oxygenation
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US6890482B2 (en) 1999-09-30 2005-05-10 Therox, Inc. Apparatus for blood oxygenation
DE60031706T2 (de) * 1999-09-30 2007-09-06 Therox, Inc., Irvine Vorrichtung zur blutoxygenierung
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Also Published As

Publication number Publication date
WO1984000996A1 (fr) 1984-03-15
DE3232938A1 (de) 1984-03-15
US4596210A (en) 1986-06-24
JPH0429870B2 (fr) 1992-05-20
DE3232938C2 (de) 1984-06-28
EP0118500B1 (fr) 1987-10-28
JPS59501553A (ja) 1984-08-30

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