Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
  • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
  • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
  • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
  • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
  • F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
  • F01N3/025—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust
  • F01N3/0253—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust adding fuel to exhaust gases
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01B—BOILING; BOILING APPARATUS ; EVAPORATION; EVAPORATION APPARATUS
  • B01B1/00—Boiling; Boiling apparatus for physical or chemical purposes ; Evaporation in general
  • B01B1/005—Evaporation for physical or chemical purposes; Evaporation apparatus therefor, e.g. evaporation of liquids for gas phase reactions
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
  • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
  • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
  • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
  • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
  • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
  • F01N3/36—Arrangements for supply of additional fuel
• • 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
  • F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
  • F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
  • F02M31/12—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating electrically
  • F02M31/125—Fuel
• • 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
  • F23K5/14—Details thereof
  • F23K5/22—Vaporising devices
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
  • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
  • F01N2610/00—Adding substances to exhaust gases
  • F01N2610/03—Adding substances to exhaust gases the substance being hydrocarbons, e.g. engine fuel
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
  • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
  • F01N2610/00—Adding substances to exhaust gases
  • F01N2610/10—Adding substances to exhaust gases the substance being heated, e.g. by heating tank or supply line of the added substance
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
  • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
  • F01N2610/00—Adding substances to exhaust gases
  • F01N2610/10—Adding substances to exhaust gases the substance being heated, e.g. by heating tank or supply line of the added substance
  • F01N2610/107—Adding substances to exhaust gases the substance being heated, e.g. by heating tank or supply line of the added substance using glow plug heating elements
• • 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
  • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
  • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
  • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
• • 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 a liquid vaporization device, particularly but not exclusively used in the field of motor vehicles to lute against pollution.
• the vaporizer consists of a hollow body 10, generally cylindrical , provided with a fuel injection spraying 1 1, a spark plug 12 and a vaporized fuel outlet 13.
• the cylindrical body 10 is closed at its lower end 14.
• the fuel supply 1 1 consists of a connecting piece 15, having an orifice 16 connected to a fuel supply conduit (not shown), and an injection chamber 17.
• the connection 15 may consist mainly of a spacer 18 fixed to the chamber 17 by a screw 19.
• the fuel is then led into the hollow body 10, using a pipe 20 fixed to said body, and the fuel is vaporized in contact with the spark plug 12.
• the connecting piece 15 can also be incorporated by a classic quick link.
• the vaporizer that has just been described poses problems of size, mechanical strength (for example, vibration resistance problem) and cost of manufacture.
• the present invention provides embodiments of vaporization devices that do not have the disadvantages of the prior art.
• the invention provides a device for vaporizing a liquid, of the type comprising a hollow body (for example of substantially cylindrical shape) having a longitudinal axis and whose inner wall defines an admission chamber. liquid, a candle attached to the hollow body and provided with a heating element opening into said chamber, liquid supply means in said chamber in contact with said heating element, and an outlet of the vaporized liquid.
• said liquid supply means are fixed to said hollow body and positioned substantially along said longitudinal axis.
• Said outlet of the vaporized liquid is advantageously constituted by a discharge conduit having an end fixed to said hollow body substantially facing said heating element.
• said liquid supply means comprise a screw fixed to said hollow body and pierced with a longitudinal channel opening into said chamber and a transverse channel crossing said longitudinal channel, and a conduit. liquid inlet in connection with the transverse channel, the longitudinal axis of said longitudinal channel coinciding with said longitudinal axis of said hollow body.
• said screw is fixed to said hollow body by means of a hollow spacer interposed between the head of the screw and said hollow body, said liquid inlet duct being attached to the spacer.
• sealing means for example two sealing washers, advantageously metallic
• said spacer is interposed between the spacer and, on the one hand, said hollow body and, on the other hand, the head of the screw.
• said hollow body comprises a nozzle aligned with said longitudinal axis and said liquid supply means comprise a quick-connect piece that can be connected to said tip.
• a seal is advantageously interposed between said tip and said quick-connect piece.
• FIG. 1 shows (in 3D) an embodiment of a vaporizer currently used in the automotive industry
• Figures 2 and 3 illustrate a first embodiment of the invention, respectively in 3D and in longitudinal section, and
• Figures 4 and 5 illustrate a second embodiment of the invention, respectively in 3D and in longitudinal section.
• the vaporizers that will be described relate to the vaporization of a liquid in general, but more particularly the vaporization of the fuel of a heat engine, such as gas oil.
• the embodiment shown in 3D in Figure 2 comprises a hollow body 21 of substantially cylindrical shape, a candle 22 screwed to the hollow body and can be connected to a source of electric current
• means 23 for supplying the liquid to be vaporized comprising a liquid inlet duct 24, a spacer 25 and a screw 26.
• the device also comprises a discharge conduit 29 of the vaporized liquid.
• the spark plug has a heating element 30 located in the hollow body and that the exhaust pipe 29, which is provided with an outlet orifice 31 of the vaporized liquid, is situated substantially opposite the heating element 30.
• the inner wall of the hollow body 21 defines a chamber 32 for admitting the liquid.
• the spacer 25, having in section a banjo shape, is hollow and is traversed by the screw 26.
• the inlet conduit of the liquid 24 is fixed (for example screwed) to the tail or handle of the banjo or spacer 25.
• the hollow body 21 has a longitudinal axis of symmetry 33.
• the screw 26 is pierced by a longitudinal channel 34, located substantially in the longitudinal axis 33 of the hollow body 21 and a transverse channel 35, substantially perpendicular to the longitudinal channel 34.
• the latter opens into the hollow body 21 facing the inlet chamber 32.
• the transverse channel 35 is located in the extension of the inlet conduit 24.
• the sealing washer 27 is placed between the hollow body 21 and the spacer 25; the sealing washer 28 is placed between the spacer 25 and the head of the screw 26.
• the spacer 25, the screw 26 and the sealing washers 27 and 28 are advantageously metallic so as to be able to withstand without damage the temperatures elevated up to 700 0 C.
• the hollow body 21 is generally metallic.
• FIG. 4 Another embodiment is shown in 3D ( Figure 4) and in section ( Figure 5). It differs from the embodiment of FIGS. 2 and 3 by the means for feeding the liquid to be vaporized.
• the substantially identical elements are therefore a hollow body 41 of substantially cylindrical shape, an exhaust duct 42 with an orifice 43 for discharging the vaporized liquid, and a spark plug 44 with a heating element 45.
• the hollow body 41 has a longitudinal axis of symmetry 46 and ends in this embodiment with a nozzle 47 constituting the maie part of a connection.
• the means for supplying the liquid to be vaporized are in the form of a quick link fitting into a female part 48 of the feed means 49.
• the part 48 has substantially the shape of a hollow cylinder bent at 90 degrees, the interior of the part 48 forming a channel 50 for supplying the liquid to be vaporized into the chamber 51 for the admission of the liquid.
• the channel 50 has substantially the shape of a hollow cylinder whose longitudinal axis 52 coincides with the longitudinal axis 45 of the hollow body 41.
• the piece 48 terminates at one of its ends by a conduit 53 connecting to a pipe (not shown) for supplying the liquid to be sprayed.
• Room 48 can take different forms; that shown in Figure 5 comprises resilient fingers (or claws) 54 provided with notches 55 in which can be housed an annular flange 56 located on the endpiece 47 so as to disengageably connect the end piece 47 and the workpiece 48.
• a lip seal (or an O-ring) 57 seals between the nozzle 47 and the piece 48.
• the latter ends with a longitudinal stop 58 bearing on a shoulder 59 of the hollow body 41.
• the piece 48 may be metallic or plastic. However, if it is desired that the device withstands high temperatures up to 700O, the part 48 and the seal 57 are advantageously metallic.
• the liquid to be vaporized enters the chamber 51 through the channel 50, is sprayed in contact with the heating element 45 of the candle 44 and exits in the form of steam through the orifice 43 of the outlet duct 42.
• the vaporizer is used to raise the temperature of the exhaust gas of a motor vehicle equipped with a particle filter, the outlet orifice 31 or
• the hollow body containing the heating element can be made by forming from a tube.
• the possibility of making the device entirely of metal makes it possible to withstand relatively high temperatures.

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• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Health & Medical Sciences (AREA)
• Toxicology (AREA)
• Exhaust Gas After Treatment (AREA)
• Air-Conditioning For Vehicles (AREA)

Applications Claiming Priority (2)

Publications (1)

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ID=39362271

Family Applications (1)

Country Status (3)

Families Citing this family (1)

Family Cites Families (14)

• 2007
  • 2007-09-26 FR FR0757874A patent/FR2921276B1/fr not_active Expired - Fee Related
• 2008
  • 2008-09-03 WO PCT/FR2008/051568 patent/WO2009044038A2/fr not_active Ceased
  • 2008-09-03 EP EP08835944A patent/EP2191111A2/de not_active Withdrawn

Non-Patent Citations (1)

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