US3904347A - Combustion apparatus with ultrasonic vibrator - Google Patents

Combustion apparatus with ultrasonic vibrator Download PDF

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Publication number
US3904347A
US3904347A US414417A US41441773A US3904347A US 3904347 A US3904347 A US 3904347A US 414417 A US414417 A US 414417A US 41441773 A US41441773 A US 41441773A US 3904347 A US3904347 A US 3904347A
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US
United States
Prior art keywords
air duct
horn
outer air
swirling vanes
cap
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 - Lifetime
Application number
US414417A
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English (en)
Inventor
Nerumitsu Rokudo
Toshiyuki Ishiguro
Makoto Hori
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
    • B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
    • B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
    • B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
    • B05B17/0623—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers coupled with a vibrating horn
    • B05B17/063—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers coupled with a vibrating horn having an internal channel for supplying the liquid or other fluent material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
    • B01F31/80—Mixing by means of high-frequency vibrations above one kHz, e.g. ultrasonic vibrations
    • B01F31/84—Mixing by means of high-frequency vibrations above one kHz, e.g. ultrasonic vibrations for material continuously moving through a tube, e.g. by deforming the tube
    • B01F31/841—Mixing by means of high-frequency vibrations above one kHz, e.g. ultrasonic vibrations for material continuously moving through a tube, e.g. by deforming the tube with a vibrating element inside the tube
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J19/10—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing sonic or ultrasonic vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
    • B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
    • B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
    • B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
    • B05B17/0623—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers coupled with a vibrating horn
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F23D11/34—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space by ultrasonic means or other kinds of vibrations
    • F23D11/345—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space by ultrasonic means or other kinds of vibrations with vibrating atomiser surfaces

Definitions

  • An inner air duct is located within the Osaka Japan outer air duct coaxially thereof between the front portion of said horn and said outer air duct.
  • Inner vanes 1 Filedi 9, 1973 or air swirling vanes are located within said inner air [2]] Appl Na: 414,417 duet.
  • Outer vanes or air swirling vanes are located be tween said inner and outer air ducts.
  • An outwardly diverging frustoconical cap is attached to the from open [30] Foreign Application Priority Data end of the outer air duct.
  • the front portion of the Nov. 17, 1972 Japan 47-1 15816 Cons-Shaped p is radially inwardly I0 define center opening; the tips of the inner air swirling vanes [52] US.
  • the present invention relates to a combustion appa ratus with a horn which is vibrated by an ultrasonic vibrator for atomizing liquid fuel, the kinetic energies of atomized fuel particles are insufficient to propel them forcefully out of the apparatus so that they start to fall immediately from the atomizing surface of the horn. Consequently air is blown from the back of the horn to scatter the atomized fuel particles in the forward direction.
  • inner and outer air swirling vanes are located around the front end portion of the horn so as to swirl the air flows, and an outwardly diverging frustoconical cap is attached to the open front end of an outer air duct to control a flame pattern.
  • the ratio of the angle 8 between the outer and inner vanes and the axis of the horn to an angle 9 or oblique angle between the tapered portion of the frustoconical cap and the axis of the horn. and the ratio of the diameter D of a center opening of the cap to the length L in the axial direction thereof are not within predetermined ranges, incomplete combustion results.
  • the tips of the inner air swirling vanes are separated from each other and spaced apart from the front end portion of the fuel atomizing horn to define an air passage therebetween; the ratio of the angles 0, minus and 6 is being between 3/10 and l; and the ratio between the diameter D of the center opening of the cap and the length L of the cap is between 1.25 and 3 so that complete combustion may be ensured.
  • FIG. 1 is a sectional view of a combustion apparatus in accordance with the present invention
  • FiG. 2A is a fragmentary view thereof illustrating the fuel-air mixing section
  • FIG. 2B is a side view thereof
  • FIG. 2C is a view illustrating vanes or air swirling vanes thereof
  • FIG. 3 is a view used for the explanation of the mode of dispersion of atomized fuel particles
  • FIG. 4 is a perspective view of an inner air duct with inner air swirling vanes
  • FIG. 5 is a graph used for the explanation of the combustions when the angles e and 6 indicated in FIGS. 2A and 2B are varied;
  • FIGS. 6A and 6B are views used for the explanation of air and atomized fuel particle flows
  • FIG. 7A to FIG. 70 are views used for the explanation of the combustions when the ratio between a diameter of a center opening of a cap and a length thereof is varied.
  • FIG. 8 is a graph illustrating the combustion conditions shown in FIGv 7A to FIG. 7D.
  • FIG. I the left end of a large-diameter air duct l communicates with the discharge port of a blower (not shown) while the other end is connected to an outer air duct 2 with a tapered portion 20.
  • An inner air duct 3 is supported by a plurality of brackets 31) within the outer air duct 2 coaxially thereof.
  • An ul trasonic vibrator 4 is attached to a horn 5 which is adapted to amplify the ultrasonic vibration.
  • the horn 5 is supported coaxially of the outer air duct 2 by a plurality of brackets or legs 7 which are fixed to the nodal point of the horn 5 and the vibrator 4.
  • a plurality of air swirling vanes 9 are extended inwardly from the inner surface of the inner air duct 3, and the free ends of these air swirling vanes 9 define an annular space between them and the horn 5 so as to flow air along the outer surface of the horn 5.
  • the vanes 9 are extended in such a way that they are tangent to the outer circular boundary of the annular space 30.
  • Between the outer air duct 2 and the inner air duct 3 are disposed equiangularly a plurality of tangential air swirling vanes 8 which are tangential to the inner air duct 3 as best shown in FIG. 28.
  • fuel supply from a fuel tank (not shown) to the horn 5 through a fuel feed pipe I] is controlled by a fuel flow regulator 10.
  • a fuel supply passage 12 is extended along the axis of the horn 5 to flow the fuel supplied from the fuel feed pipe II to a fuel atomizing surface at the free end of the horn 5.
  • An ultrasonic frequency generator 14 is connected through lead lines I3 to a coil 13a mounted on the ultrasonic vibrator 4 to cause the latter to vibrate at ultrasonic frequencies.
  • a frustoconical cap 15 consisting of an outwardly diverged or tapered portion 15a and an opening restricting portion 16, which is radially inwardly bent from the outer edge of the tapered portion 150.
  • Fuel whose flow is controlled by the fuel flow regulator 10 is supplied to the atomizing surface 5a at the free end of the horn S, and fuel forms a thin film over the atomizing surface 5a due to the surface tension and viscosity of the fuel.
  • a thin fuel film formed upon the atomizing surface 5a is broken into finely divided particles due to the ultrasonic vibration of the horn 5, and the finely divided or atomized fuel particles are scattered forwardly from the atomizing surface 5a.
  • the atomization of fuel only by the ultrasonic vibration of the horn 5 results in a densely concentrated zone a in FIG.
  • the blower (not shown) is provided to force the atomized fuel particles to scatter forwardly from the atomizing surface by the air passing through the large diameter air duct 1 and the outer air duct 2. Furthermore, according to the present invention, the outer and inner air swirling vanes 8 and 9 and the cap 15 are provided to form the optimum ignition zone.
  • air which reaches the smalldiameter section of the outer air duct 2 is divided into the air flow A passing through the annular space between the horn 5 and the tips of the vanes 9, the air flow B passing through the inner air duct 3 and the air flow C passing through the annular space between the outer and inner air ducts 2 and 3.
  • the air flow A passing through the annular space 3a serves to force the atomized fuel particles away from the atomizing surface a.
  • the air flow B passing through the inner air duct 3 is swirled by the air swirling vanes 9 and joined to the air flow A passing through the annular space 30 thereby swirling and mixing the atomized fuel particles with air.
  • the air flow B further serves to force the atomized fuel particles away from the atomizing surface 5a.
  • the free ends of the air swirling vanes 3 in the inner air duct 3 are not brought into contact with the outer surface of the horn 5 but instead terminate at a slight distance therefrom. thereby defining the annular space 30,
  • the air flow passing through the annular space 3a is therefore not separated from the air flow passing through the inner air duct 3 and the fuel and air are well mixed with each other. Therefore there is produced no vortex which adversely affects the mixing of the atomized fuel particles with air.
  • the atomized fuel particles dispersed away from the swirling air flow consisting of the air flow A passing through the annular space 3a and the air flow B passing through the inner air duct 2 may be swirled by the swirling air flow C passing through the space between the outer and inner air ducts 2 and 3 so that the atomized fuel particles may be well mixed with air.
  • the atomized fuel particles In order to attain the optimum combustion, the atomized fuel particles must be uniformly distributed in air, and a suitable ignition zone must be formed in a suitable pattern and at a suitable location so that the normal combustion may be continued. For this purpose, the velocities and the direction of swirling of the air flows must be so determined as to form such optimum ignition zone. If the velocity of the air flow A passing through the annular space 3a is too great, the velocity of atomized fuel particles in the direction of the axis of the horn exceeds the combustion speed, resulting in leaping flames.
  • the outwardly diverging cap a is attached to the open end of the outer air duct 2, and the relation between the angle between the tapered mrtion 15a and the axis of the horn 5 and the angle of the outer air swirling vanes 8 is so determined as to satisfy some conditions to be described in more detail hereinafter.
  • the angle between the outer and inner air swirling vanes 8 and 9 and the axis of the inner air duct 3 is designated by 6,
  • angle of the tapered portion 15a of the cap 15 with respect to the axis thereof is designated by 6
  • these angles 6, and 6 are correlated as shown in FIG. 5.
  • the straight line Y is expressed y 3 2 IO i and the straight line Y, is given by
  • the P area enclosed by the straight line Y, and the 6, axis indicates a noncombustion area.
  • the 0 area between the straight lines Y, and Y indicates a complete combustion area, and the R area enclosed by the straight line Y and the 9 axis indicates an incomplete combustion area.
  • the air flow is indicated by the solid lines while the directions of the drift of atomized fuel particles are indicated by the broken lines.
  • the condition shown in FIG. 6A corresponds to the P area in FIG. 5 and the condition shown in FIG. 6B, the R area.
  • the angle 0 is too small with respect to the angle 6,, so that atomized fuel particles are forced to impinge against the inner wall of the cap 15 by the strong swirling air flows within the cap 15.
  • the impinged atomized fuel particles turn into liquid fuel which is carried out forwardly by the air flow, thus resulting in incomplete combustion.
  • the angle 6 is too small, the radial component of the swirling air flow is reduced while the axial component is increased, so that the air flow will not expand in the radial direction as indicated by the solid lines in FIG. 6A in front of the cap 15.
  • the angle 6 is too large with respect to the angle 6,, so that atomized fuel particles are not imparted with sufficient energies to strike against the inner wall of the cap IS even though they are swirled within the cap 15. Therefore, the quantity of unburnt atomized fuel particles is decreased, but the atomized fuel particles are not mixed with the air in the proximity of the boundary of the swirling air flow. In other words, the air discharged from the cap is not sufficiently mixed with atomized fuel particles, thus resulting in the incomplete combustion.
  • angles of the outer and inner air swirling vanes 8 and 9 have been described as being equal to each other, but they may be different.
  • FIGS. 7A 7D show the correlation when both the length L and the diameter D are smaller. Since the swirling air flow is not sufficiently attenuated or damped within the cap 15 and the diameter D is small, the air flow discharged out of the cap suddenly expands in a radial direction, thus resulting in a ball-shaped flame. Since the axial component of the energy of the swirling air flow is smaller than the radial component, air cannot sufficiently penetrate into a body of atomized fuel particles so that sufficient mixing between the air and atomized fuel particles cannot be attained, thus resulting in the incomplete combustion.
  • the length L is longer and the diameter D is smaller so that the air flow discharged out of the cap 15 is unduly reduced.
  • the air flow fluctuates with the result of blow-off."
  • the diameter D is too small, atomized fuel particles strike against the inner surface of the opening reducing portion 16 and turn into liquid fuel, thus resulting in incomplete combustion.
  • the length L is longer and the diameter D is also greater so that the radial component is excessively attenuated while the axial component is in creased, thus resulting in an extraordinarily long flame with a small cross section.
  • the axial component is decreased so that the mixing of atomized fuel particles with air cannot be carried out in a satisfactory manner. As a result, incomplete combustion occurs and soot is produced from the end of the flame.
  • the combustion conditions described hereinbefore with reference to FIGS. 7A 7D are illustrated in FIG. 8 for the sake of comparison.
  • the hatched area denotes the ratio between the angies 6 and 6 the ratio between the length L and the diameter D which ensure the optimum combustion. That is, the optimum ratio of the angle 9 to the angle 9 minus 10 is between 3/10 and unity when the ratio D/L is varied within the optimum range between 1.25 and 3.
  • the hatched area indicates a range in which 8 /6 minus l0 3/10 to l and 13/1. L25 to 3.
  • the regions or areas indicated by FIG. 7A. 7B. 7C and 7D in P16. 8 show the areas or regions where the combustions as shown in FIGS. 7A, 7B, 7C and 7D occur respectively.
  • a combustion apparatus of the type comprising an outer air duct with a liquid fuel atomizing horn which is vibrated by an ultrasonic vibrator housed within said outer air duct coaxially thereof,
  • an inner air duct located within said outer air duct coaxialiy thereof between the front portion of said horn and said outer air duct.
  • inner air swirling vanes located within said inner air duct, outer air swirling vanes located within said inner and outer air ducts.
  • the radially inner ends of said inner air swirling vanes are spaced apart from each other and are spaced from said horn to define a space between said horn and said inner air swirling vanes, whereby the spaces between said inner air swirling vanes are open to said space between said horn and inner swirling vanes, and the radially outer ends of said swirling vanes are on the inner peripheral wall of said inner air duct,
  • 6 is the angle between said inner and outer air swirling vanes and the axis of said horn and 6 is the angle between the tapered portion of said cap and said axis of said horn.
  • a combustion apparatus as defined in claim 2 wherein 6 45, 8 20, D mm and L 25 mm.
  • a combustion apparatus of the type comprising an outer air duct with a liquid fuel atomizing horn which is vibrated by an ultrasonic vibrator housed within said outer air duct coaxially thereof.
  • outer air swirling vanes located between said inner and outer air ducts and an outwardly diverging coneshaped cap attached to the front end of said outer air duct, the front por tion of said cone-shaped cap being radially inwardly bent to define a center opening,
  • the radially inner ends of said inner air swirling vanes are spaced apart from each other and are spaced from said horn to define a space between said horn and said inner air swirling vanes, whereby the spaces between said inner air swirling vanes are open to said space between said horn and inner swirling vanes, and the radially outer ends of said inner swirling vanes are on the inner peripheral wall of said inner air duct.
  • the ratio of the diameter D of said center opening of said cap to the length L in the axial direction between the open end of said outer air duct and the front end of said cap being between 1.25 and 3.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
US414417A 1972-11-17 1973-11-09 Combustion apparatus with ultrasonic vibrator Expired - Lifetime US3904347A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47115816A JPS529855B2 (de) 1972-11-17 1972-11-17

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US (1) US3904347A (de)
JP (1) JPS529855B2 (de)
AT (1) AT348644B (de)
BE (1) BE807466A (de)
CA (1) CA988838A (de)
CH (1) CH578711A5 (de)
DE (1) DE2356863C2 (de)
DK (1) DK139322B (de)
FR (1) FR2208505A5 (de)
GB (1) GB1452502A (de)
IT (1) IT999416B (de)
NL (1) NL170457C (de)
NO (1) NO136224C (de)
ZA (1) ZA738715B (de)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4081233A (en) * 1975-06-19 1978-03-28 Matsushita Electric Industrial Co., Ltd. Combustion device
US4123481A (en) * 1975-02-21 1978-10-31 Wilhelm Herold Device for carburetion of liquid fuels
DE3112339A1 (de) * 1980-04-12 1982-02-25 Battelle-Institut E.V., 6000 Frankfurt "vorrichtung zur zerstaeubung von fluessigkeiten"
US4337896A (en) * 1979-06-08 1982-07-06 Sono-Tek Corporation Ultrasonic fuel atomizer
US4344402A (en) * 1976-10-29 1982-08-17 Child Francis W Fuel supply system
US4344404A (en) * 1976-10-29 1982-08-17 Child Francis W Fuel supply system
US4344403A (en) * 1976-10-29 1982-08-17 Child Frances W Fuel supply system
US4466571A (en) * 1981-06-24 1984-08-21 Muehlbauer Reinhard High-pressure liquid injection system
US4912920A (en) * 1989-02-02 1990-04-03 Toa Nenryo Kogyo Kabushiki Kaisha Ultrasonic burner system for regenerating a filter
DE9111204U1 (de) * 1991-09-10 1991-11-07 Stahl, Werner, 88662 Überlingen Vorrichtung zum Zerstäuben eines Wirkstoffs
US20040187226A1 (en) * 2002-04-26 2004-09-30 Hansruedi Muerner Agents for oxidatively dying keratin fibers
US20060026964A1 (en) * 2003-10-14 2006-02-09 Robert Bland Catalytic combustion system and method
US20080295502A1 (en) * 2007-05-31 2008-12-04 Cox Glenn B Regeneration device purged with combustion air flow
US20100213273A1 (en) * 2007-09-21 2010-08-26 Spraying Systems Co. Ultrasonic atomizing nozzle with variable fan-spray feature
US20100258648A1 (en) * 2007-11-19 2010-10-14 Spraying Systems Co. Ultrasonic atomizing nozzle with cone-spray feature
US20140338781A1 (en) * 2013-05-20 2014-11-20 Steere Enterprises, Inc Swirl vane air duct cuff assembly and method of manufacture
CN113898947A (zh) * 2021-11-15 2022-01-07 中国计量大学 一种燃气燃烧器

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51150741A (en) * 1975-06-19 1976-12-24 Matsushita Electric Ind Co Ltd A combus tion equipment

Citations (4)

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US3200873A (en) * 1962-06-04 1965-08-17 Exxon Research Engineering Co Ultrasonic burner
US3255804A (en) * 1963-08-15 1966-06-14 Exxon Research Engineering Co Ultrasonic vaporizing oil burner
US3275059A (en) * 1965-05-10 1966-09-27 Little Inc A Nozzle system and fuel oil burner incorporating it
US3796536A (en) * 1971-04-26 1974-03-12 Matsushita Electric Ind Co Ltd Liquid fuel burner

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1440237A (en) * 1972-07-04 1976-06-23 Matsushita Electric Ind Co Ltd Fuel burners

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3200873A (en) * 1962-06-04 1965-08-17 Exxon Research Engineering Co Ultrasonic burner
US3255804A (en) * 1963-08-15 1966-06-14 Exxon Research Engineering Co Ultrasonic vaporizing oil burner
US3275059A (en) * 1965-05-10 1966-09-27 Little Inc A Nozzle system and fuel oil burner incorporating it
US3796536A (en) * 1971-04-26 1974-03-12 Matsushita Electric Ind Co Ltd Liquid fuel burner

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4123481A (en) * 1975-02-21 1978-10-31 Wilhelm Herold Device for carburetion of liquid fuels
US4081233A (en) * 1975-06-19 1978-03-28 Matsushita Electric Industrial Co., Ltd. Combustion device
US4344402A (en) * 1976-10-29 1982-08-17 Child Francis W Fuel supply system
US4344404A (en) * 1976-10-29 1982-08-17 Child Francis W Fuel supply system
US4344403A (en) * 1976-10-29 1982-08-17 Child Frances W Fuel supply system
US4337896A (en) * 1979-06-08 1982-07-06 Sono-Tek Corporation Ultrasonic fuel atomizer
DE3112339A1 (de) * 1980-04-12 1982-02-25 Battelle-Institut E.V., 6000 Frankfurt "vorrichtung zur zerstaeubung von fluessigkeiten"
US4466571A (en) * 1981-06-24 1984-08-21 Muehlbauer Reinhard High-pressure liquid injection system
US4912920A (en) * 1989-02-02 1990-04-03 Toa Nenryo Kogyo Kabushiki Kaisha Ultrasonic burner system for regenerating a filter
DE9111204U1 (de) * 1991-09-10 1991-11-07 Stahl, Werner, 88662 Überlingen Vorrichtung zum Zerstäuben eines Wirkstoffs
US5224651A (en) * 1991-09-10 1993-07-06 Werner Stahl Apparatus for atomizing an active substance
US20040187226A1 (en) * 2002-04-26 2004-09-30 Hansruedi Muerner Agents for oxidatively dying keratin fibers
US20060026964A1 (en) * 2003-10-14 2006-02-09 Robert Bland Catalytic combustion system and method
US7096671B2 (en) * 2003-10-14 2006-08-29 Siemens Westinghouse Power Corporation Catalytic combustion system and method
US20080295502A1 (en) * 2007-05-31 2008-12-04 Cox Glenn B Regeneration device purged with combustion air flow
US7926262B2 (en) * 2007-05-31 2011-04-19 Caterpillar Inc. Regeneration device purged with combustion air flow
US20100213273A1 (en) * 2007-09-21 2010-08-26 Spraying Systems Co. Ultrasonic atomizing nozzle with variable fan-spray feature
US8297530B2 (en) * 2007-09-21 2012-10-30 Spraying Systems Co. Ultrasonic atomizing nozzle with variable fan-spray feature
US20100258648A1 (en) * 2007-11-19 2010-10-14 Spraying Systems Co. Ultrasonic atomizing nozzle with cone-spray feature
US8613400B2 (en) * 2007-11-19 2013-12-24 Spraying Systems Co. Ultrasonic atomizing nozzle with cone-spray feature
US20140338781A1 (en) * 2013-05-20 2014-11-20 Steere Enterprises, Inc Swirl vane air duct cuff assembly and method of manufacture
US9228542B2 (en) * 2013-05-20 2016-01-05 Steere Enterprises, Inc. Swirl vane air duct cuff assembly and method of manufacture
CN113898947A (zh) * 2021-11-15 2022-01-07 中国计量大学 一种燃气燃烧器
CN113898947B (zh) * 2021-11-15 2022-11-18 中国计量大学 一种燃气燃烧器

Also Published As

Publication number Publication date
DK139322B (da) 1979-01-29
IT999416B (it) 1976-02-20
JPS4972724A (de) 1974-07-13
AU6234173A (en) 1975-05-15
NL170457B (nl) 1982-06-01
DK139322C (de) 1979-07-02
FR2208505A5 (de) 1974-06-21
NO136224C (no) 1977-08-03
CH578711A5 (de) 1976-08-13
JPS529855B2 (de) 1977-03-18
GB1452502A (en) 1976-10-13
NL170457C (nl) 1982-11-01
DE2356863A1 (de) 1974-06-06
ATA962773A (de) 1978-07-15
BE807466A (fr) 1974-03-15
DE2356863C2 (de) 1983-12-29
NO136224B (de) 1977-04-25
CA988838A (en) 1976-05-11
NL7315765A (de) 1974-05-21
ZA738715B (en) 1974-10-30
AT348644B (de) 1979-02-26

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