EP0709621B1 - Ölbrenner mit Druckluftzerstäuber - Google Patents

Ölbrenner mit Druckluftzerstäuber Download PDF

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Publication number
EP0709621B1
EP0709621B1 EP95830449A EP95830449A EP0709621B1 EP 0709621 B1 EP0709621 B1 EP 0709621B1 EP 95830449 A EP95830449 A EP 95830449A EP 95830449 A EP95830449 A EP 95830449A EP 0709621 B1 EP0709621 B1 EP 0709621B1
Authority
EP
European Patent Office
Prior art keywords
tube
fuel oil
head
atomizing nozzle
air
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
EP95830449A
Other languages
English (en)
French (fr)
Other versions
EP0709621A2 (de
EP0709621A3 (de
Inventor
Marco Monari
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.)
TESS S.A.S. DI TERESA MENARINI & C.
Original Assignee
Tess Sas Di Teresa Menarini & C
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 Tess Sas Di Teresa Menarini & C filed Critical Tess Sas Di Teresa Menarini & C
Publication of EP0709621A2 publication Critical patent/EP0709621A2/de
Publication of EP0709621A3 publication Critical patent/EP0709621A3/de
Application granted granted Critical
Publication of EP0709621B1 publication Critical patent/EP0709621B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F23D11/10—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour
    • F23D11/101—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour medium and fuel meeting before the burner outlet
    • F23D11/105—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour medium and fuel meeting before the burner outlet at least one of the fluids being submitted to a swirling motion

Definitions

  • the present invention relates to an air-atomized oil burner.
  • the fuel oil is atomized by steam or pressurized air.
  • One type of air-atomized oil burner as shown for example in US-A- 4 221 558 and EP-A- 0 140 477, consists basically of three coaxial tubes placed one inside the other. The innermost tube has a atomizing nozzle on the end of it which feeds the fuel oil.
  • the middle tube supplies primary air used for atomizing the fuel oil fed by the atomizing nozzle before combustion.
  • the outermost tube supplies secondary or combustion air, that is, the air which enables combustion of the atomized oil to take place.
  • the primary and secondary air can be supplied by the same source to simplify the structure of the burner or, preferably, by two different sources, so that there is more margin for adjustment. This is because the amount of secondary air is a function of the amount of fuel oil required, whilst the amount of primary air, or rather, its pressure, depends less on the amount of fuel oil required.
  • oil atomization has until now been optimized using nozzles with complex shapes and structures and by directing the flow of the primary and secondary air supplies in such a way that they are as parallel as possible to the fuel oil flow in such a way as to mix them effectively and to improve the carrying of the fuel oil by the atomizing fluid, that is, the air or steam.
  • the nozzle and middle tubes were made in the form of a Venturi tube and the nozzle and inner tubes coaxially slidable relative to each other in order to satisfy different operating requirements.
  • the object of the present invention is to provide an air-atomized oil burner that is not only efficient and highly reliable in terms of combustion but also simple in terms of structure.
  • the numeral 1 indicates the air-atomized oil burner disclosed by the present invention.
  • the said oil burner 1 consists of three coaxial tubes 2, 3 and 5 placed one inside the other and an atomizing nozzle 7 keyed to one end of the innermost tube 2, as can be clearly seen in Fig. 1.
  • the innermost tube 2 communicates with fuel oil supply means which feed the fuel oil at a preset, adjustable pressure.
  • the said means are illustrated schematically as a block 40 since they are of known type and do not fall within the scope of the present invention.
  • the middle tube 3 and the outermost tube 5 are both connected to the same source of compressed air, which is illustrated schematically as a second block 41 for the same reason mentioned as regards the fuel oil supply means 40.
  • a closer look at the structure of the burner 1 shows that the innermost tube 2 has keyed at opposite ends of it the atomizing nozzle 7 and an end flange 29 to which one end of the outermost tube 5 is also keyed.
  • the end flange 29 also has one end of the middle tube 3 sealed onto it. That means the end flange 29 acts not only as a spacer but also as a fixing element for tubes 2, 3 and 5.
  • the atomizing nozzle 7 consists of a head 8 and a casing 12 which fits snugly over the head 8.
  • the casing 12 is flanged at 27 with an outer diameter that is substantially the same as the outer diameter of the middle tube 3.
  • the free end of the middle tube 3 is connected to the free end of the outermost tube 5 by means of a tubular union 22 divided into two consecutive sections 23 and 24 which differ in diameter.
  • the smaller diameter tubular section 23 is keyed to the free end of of the middle tube 3 and joined to the larger diameter tubular section 24 through a transverse wall 20 with holes 21 whose axes are parallel to the axis of the union 22.
  • the tubular section 23 Near the transverse wall 20, the tubular section 23 has a plurality of radial holes 19 and, in practice constitutes an extension of the middle tube 3.
  • the tubular section 23 itself has inside it a seat 26 to receive the flange 27 of the casing 12.
  • the seat 26 is open towards the end flange 29 so that the middle tube 3 holds the flange 27 in the seat 26.
  • the tubular section 24 is equipped with a flange 25 to which the free end of the outermost tube 5 is connected.
  • the tubular section 24 also has radial holes 42 and, in conjunction with the outermost tube 5, defines an annular chamber 43.
  • the tubular sections 23 and 24 of the union 22 define two consecutive chambers 44 and 45, respectively, which constitute the combustion chamber of the burner 1, as described below.
  • the disc 30 divides the annular chamber defined by the middle tube 3 and the outermost tube 5 into two consecutive chambers 31 and 32.
  • the disc 30 has a plurality of slots 33, has a substantially bowl-shaped cross section and contains an annular shutter 34 also fitted to the middle tube 3 and having a series of slots 35.
  • the slots 35 coincide in number and size with the slots 33.
  • the angular position of the annular shutter 34 with respect to the dividing disc 30 may be adjusted from a position in which the slots 33 and 35 are not aligned with each other to one in which they are completely aligned, that is to say, from a position in which the slots 33 in the disc 30 are closed to a position in which they are fully open.
  • the angular position of the annular shutter 34 therefore determines the secondary air flow 6 from the chamber 31 to the chamber 32 towards the union 22.
  • the middle tube 3 and the outermost tube 5 have apertures 36 and 37 through which air is fed at low pressure, for example 1000 mm H 2 O and at ambient temperature.
  • the apertures 36 and 37 are coaxial so that the air supplied to the burner 1 at aperture 37 flows directly into the innermost tube 3 before occupying the chamber 31 thanks also to the dividing disc 30 and the shutter 34 which increases the pressure drop of the secondary air 6.
  • the head 8 of the atomizing nozzle 7 consists basically of two consecutive sections, one of which 9 is cylindrical and the other 11 conical.
  • the cylindrical section 9 is equipped with a small end flange 38 and a plurality of grooves 10 terminating at the conical section 11.
  • the grooves 10 extend at an angle with respect to the longitudinal axis of the head 8.
  • the grooves 10 may be helical.
  • the conical section 11 has feed holes 17 in it, which communicate with the innermost tube 2 and which feed fuel oil.
  • the feed holes 17 may be made in the conical section 11, as shown in Figs. 1 and 4, or they may be made in the grooves 10 in the cylindrical section 9, as shown in Fig. 5.
  • the feed holes 17 are substantially perpendicular to the direction of the primary air supply 4 in contact with the head 8.
  • the head 8 is housed inside the axial hole 13 in the casing 12.
  • the axial hole 13 is divided into three consecutive sections 39, 14 and 13 corresponding, respectively, to the end flange 38, to the cylindrical section 9 and to the conical section 11 of the head 8.
  • the section 39 constitutes a seat for the end flange 38 and the cylindrical section 14 is slightly longer than the corresponding cylindrical section 9 of the head 8.
  • the conical section 11 of the head 8 and the truncated cone section 15 of the axial hole 13 are not in contact with each other but define an atomization chamber 16 into which the grooves 10 and the feed holes 17 lead.
  • the cross section of the grooves 10 is larger than that of the atomization chamber 16 so that the primary air 4 that is fed into the atomization chamber 16 through the grooves is subjected to a considerable increase in pressure and speed.
  • the path followed by the primary air 4 flowing through the grooves 10 is such as to generate a vortex which strikes the fuel oil as it drips out of the feed holes 17 and exerts a sucking action which further atomizes the fuel oil.
  • the atomization chamber 16 leads into the tubular section 23 of the union 22 through the end section 18 of the casing 12 whose axial hole 13, or orifice, has a small diameter.
  • the minimum axial dimension of the atomization chamber 16 is determined by the flange 38 when it is as far in the seat 39 as it can go.
  • the feed holes 17 are substantially perpendicular to the grooves 10 through which the primary air 4 flows, whilst in Fig. 4, the direction of the primary air flowing along the grooves 10 into the atomization chamber 16 is tangential to the conical section 11. In both cases, therefore, the feed holes 17 are made in such a way as to be substantially perpendicular to the direction of the primary air flow 4 so as to achieve the aforesaid turbulence to better atomize the fuel oil.
  • the feed holes 17 lead into the atomization chamber 16 in directions that are substantially perpendicular to the surface of the conical section 11 of the head 8 and, therefore, the directions in which the fuel oil and the primary air 4 are fed into the atomization chamber 16 are substantially perpendicular to each other.
  • the radial holes 19 are made in a plane substantially tangent to the end of the casing 12 facing the tubular section 23: in this way, the directions of the atomized fuel oil flow and of the secondary air flow 6 are also substantially perpendicular to each other. The same applies to the atomized fuel oil and the secondary air 6 fed through holes 42 of the tubular section 24.
  • the effect of the turbulence generated by the air and fuel oil flowing perpendicularly to each other at the different points as described above is firstly to more effectively atomize the fuel oil and, secondly, to better mix the atomized fuel oil with the secondary air 6.
  • the flange 27 has grooves 28 made at an angle to the axis of the middle tube 3 and enabling the secondary air 6 to be fed in directions perpendicular to the radial holes 19 in such a way as to increase the turbulence.
  • the burner 1 can be easily adjusted in a wide range by varying the flow rate of fuel oil and air.
  • the reduced flow of air to the burner 1 does not reduce efficiency because the air is fed directly into the middle tube 3 through apertures 37 and 36 where most of it becomes primary air 4 flowing along the grooves 10 and a small part of it becomes secondary air 6 flowing along the grooves 28.
  • the primary air 4 reaches a certain pressure within the middle tube 3, the air in excess starts occupying the chamber 31 and then the chamber 32 and from there into the union 22 through the radial holes 19, the holes 21 and the radial holes 42.
  • the primary air 4 is subjected to a first increase in pressure and speed as it passes from the middle tube 3 to the grooves 10 and to a second similar increase in pressure and speed as it passes from the grooves 10 to the atomization chamber 16.
  • the primary air 4 generates a vortex which strikes the fuel oil fed by the feed holes 17 and finely atomizes it.
  • the atomized fuel oil flows out through the orifice 18 of the casing 12 along the axis of the union 22 inside which it meets the secondary air 6 fed through the radial holes 19.
  • the flame generated will depend on the amount of fuel oil supplied through the feed holes 17 and will be directed along the axis of tubes 2, 3 and 5.
  • the flame occupies the central part of the chamber 44.
  • the flame tends to occupy the entire chamber 44 and gradually also the chamber 45 through the holes 21 and the radial holes 42.
  • flow regulator means 46 are envisaged in the head 8 to prevent low flow rates from causing the fuel oil to flow through the feed holes 17 discontinuously on account of the distance between the feed holes and the supply means 40 and on account of the small inner diameter of the innermost tube 2.
  • the flow regulator means 46 consist of a single-acting minimum pressure valve 47, which by approximately adjusting the flow rate and pressure of the fuel oil to a value greater than necessary, keeps the flow rate through the feed holes 17 at the required level.
  • Valve 47 is of a known type and consists of a shutter 48 kept in the closed position by appropriate elastic means 50.
  • the shutter 48 may be spherical (see Fig. 4) or in the shape of truncated cone (see Fig. 5).
  • the elastic means 50 for example a helical spring, may also be located inside the head 8 (see Fig. 4) or, as shown in Fig. 5, may be fitted to the outside of the innermost tube 2 at a point far from the head 8 and far from the flame generated by the atomized fuel oil fed through the atomizing nozzle 7.
  • the spring 50 operates on the shutter 48 through a control rod 49 which slides freely within the innermost tube 2. This configuration makes it possible to obtain a regular flow rate even when the operating temperature of the atomizing nozzle 7 is so high as to vary the setting of a spring 50 located inside the head 8.
  • the structure of the burner 1 is therefore very simple, thanks also to the absence of moving parts, and is capable of satisfying diverse requirements.
  • atomization has been significantly improved using air at low pressure from a single source 41 and only by modifying the geometry of the paths it follows.
  • a particularly important feature is the union 22 which, in practice, defines the geometry of the most important part of the combustion chamber, that is, the part of the combustion chamber near the atomizing nozzle 7, where the flame is generated.
  • combustion chamber 44 is divided into two parts, namely chambers 44 and 45, varying in diameter makes it possible to limit the size of the combustion chamber itself in accordance with the size of the flame, that is, according to the supply of fuel and air.
  • the flame is small and combustion is restricted to the chamber 44 which is smaller in diameter.
  • the secondary air 6 flows at a low speed, it is fed in the proximity of the orifice 18 through which the atomized oil is fed.
  • the flame gets larger and the combustion extends to the chamber 45, which is larger in diameter.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Nozzles For Spraying Of Liquid Fuel (AREA)

Claims (10)

  1. Ölbrenner mit Druckluftzerstäuber vom Typ bestehend aus drei koaxialen Rohren (2, 3, 5), welche eines in dem anderen angeordnet sind, und von denen das innen liegende (2) das Brennöl zuführt, das mittlere (3) die Primär- oder Zerstäuberluft (4) und das aussen liegende (5) die Sekundär- oder Verbrennungsluft (6), und aus einer Zerstäuberdüse (7), angebracht an dem Ende des innen liegenden Rohres (2), wobei das mittlere Rohr (3) und das aussen liegende Rohr (5) durch die gleiche Niederdruckluftquelle gespeist sind und die Zerstäuberdüse (7) aus einem Kopf (8) besteht, aufgezogen auf das eine Ende des innen liegenden Rohres (2) und enthaltend zwei aufeinanderfolgende Abschnitte, das heisst eine zylindrischen Abschnitt (9) mit Rillen (10), die sich im Verhältnis zu der Achse des Kopfes (8) selbst in einem Winkel erstrecken, und ein konischer Abschnitt (11), der sich von dem zylindrischen Abschnitt (9) aus verjüngt, wobei die Zerstäuberdüse (7) ebenfalls aus einem Gehäuse (12) besteht, welches das genannte mittlere Rohr (3) verschliesst und welches eine axiale Bohrung (13) aufweist, die in zwei aufeinanderfolgenden Abschnitten gearbeitet ist, das heisst einem zylindrischen (14) und einem stumpfkegelförmig ausgebildeten (15), entsprechend jeweils dem zylindrischen Abschnitt (9) und dem konischen Abschnitt (11) des Kopfes (8), wobei letzterer bündig in das Gehäuse (12) eingesetzt und mit seinem konischen Abschnitt (11) in einem kurzen Abstand zu dem stumpfkegelförmigen Abschnitt (15) der axialen Bohrung (13) angeordnet ist, so dass eine Zerstäubungskammer (16) beschrieben wird, in welcher die Rillen (10) des zylindrischen Abschnittes (9) des Kopfes (8) münden, wobei letzterer ebenfalls Zuführbohrungen (17) für das Brennöl enthält, die mit dem genannten innen liegenden Rohr (2) in Verbindung stehen und im wesentlichen lotrecht zu der Richtung des sich im Kontakt mit dem Kopf (8) befindlichen Primärluftstromes (4) verlaufen, wobei die genannte Zerstäubungskammer (16) durch einen Abschnitt von kleinem Durchmesser oder eine Öffnung (18) des Gehäuses (12) in das mittlere Rohr (3) führt, und zwar gerade oberhalb oder in der Nähe einer Anzahl von radialen Bohrungen (19), die in das mittlere Rohr (3) eingearbeitet sind, wobei unterhalb der radialen Bohrungen (19) eine querverlaufende Wand (20) mit Bohrungen (21), deren Achsen parallel zu den übereinstimmenden Achsen der genannten Rohre (2, 3, 5) verlaufen, zwischen dem mittleren Rohr (3) und dem äusseren Rohr (5) vorgesehen ist.
  2. Ölbrenner nach Patentanspruch 1, dadurch gekennzeichnet, dass das mittlere Rohr (3) an das äussere Rohr (5) an dem der Zerstäuberdüse (7) entsprechenden Ende über eine Verbindung (22) angeschlossen ist, letztere bestehend aus zwei zylindrischen, rohrförmigen Abschnitten (23, 24), die koaxial zueinander verlaufen, sich im Durchmesser unterscheiden und durch eine querverlaufende Wand miteinander verbunden sind, welche mit der genannten querverlaufenden Wand (20) übereinstimmt, wobei der rohrförmige Abschnitt (23) mit dem kleineren Durchmesser eine Verlängerung des mittleren Rohres (3) bildet, mit den genannten radialen Bohrungen (19) versehen ist und in seinem Inneren die genannte Zerstäuberdüse (7) aufnimmt, und wobei der rohrförmige Abschnitt (24) mit dem grösseren Durchmesser an seinem freien Ende mit einem Flansch (25) versehen ist, welcher diesen verschliesst und ihn mit dem entsprechenden Ende des äusseren Rohres (5) verbindet und eine Anzahl von zweiten radialen Bohrungen (42) aufweist; wobei der genannte kleinere rohrförmige Abschnitt (23) eine Kammer (44) beschreibt, welche durch die ersten radialen Bohrungen (19) mit Sekundärluft (6) gespeist wird und die Zerstäuberdüse (7) enthält; und wobei der genannte grössere rohrförmige Abschnitt (24) eine Kammer (45) beschreibt, welche durch die zweiten radialen Bohrungen (42) und durch die Bohrungen (21) in der querverlaufenden Wand (20) mit Sekundärluft (6) gespeist wird.
  3. Ölbrenner nach Patentanspruch 2, dadurch gekennzeichnet, dass die genannten Zuführbohrungen (17) für das Brennöl in den konischen Abschnitt (11) des Kopfes (8) eingearbeitet sind.
  4. Ölbrenner nach Patentanspruch 2, dadurch gekennzeichnet, dass die genannten Zuführbohrungen (17) für das Brennöl in die Rillen (10) des zylindrischen Abschnittes (9) des Kopfes (8) eingearbeitet sind.
  5. Ölbrenner nach Patentanspruch 2, dadurch gekennzeichnet, dass der den kleineren Durchmesser aufweisende rohrförmige Abschnitt (23) der Verbindung (22) an seinem freien Ende einen Sitz (26) aufweist, welcher die genannte Zerstäuberdüse (7) aufnimmt, und mit dem genannten freien Ende auf das entsprechende Ende des mittleren Rohres (3) aufgezogen ist, so dass er ein axiales Befestigungselement für die Zerstäuberdüse (7) bildet.
  6. Ölbrenner nach Patentanspruch 1, dadurch gekennzeichnet, dass im Inneren des genannten Kopfes (8) und zwischen dem innen liegenden Rohr (2) und den Zuführbohrungen (17) für das Brennöl Durchflussregler (46) vorgesehen sind, dazu bestimmt, die Durchflussleistung des Brennöls zu steuern.
  7. Ölbrenner nach Patentanspruch 6, dadurch gekennzeichnet, dass die genannten Durchflussregler (46) aus einem einstellbaren, einfachwirkenden Mindestdruckventil (47) bestehen.
  8. Ölbrenner nach Patentanspruch 7, dadurch gekennzeichnet, dass das genannte einfachwirkende Mindesdruckventil (47) aus einem Verschluss (48) besteht, welcher das innen liegende Rohr (2) verschliesst und mit einer Antriebsstange (49) versehen ist, welche frei im Inneren des innen liegenden Rohres (2) gleitet und der Wirkung von elastischen Mitteln (50) ausgesetzt ist, die entfernt von dem genannten Kopf (8) und von der Flamme angeordnet sind und arbeiten, die von dem aus der Zerstäuberdüse (7) austretenden zerstäubten Brennöl erzeugt worden ist.
  9. Ölbrenner nach Patentanspruch 1, dadurch gekennzeichnet, dass das Gehäuse (12) der Zerstäuberdüse (7) mit einem Flansch (27) zum Befestigen des genannten Gehäuses (12) ausgestattet ist, und zwar mit wenigstens einer Rille (28), die zwischen den Flächen des genannten Flansches (27) eingearbeitet ist und sich im Verhältnis zu der Achse des Flansches selbst in einem Winkel erstreckt.
  10. Ölbrenner nach Patentanspruch 1, dadurch gekennzeichnet, dass das genannte mittlere Rohr (3) und das genannte äussere Rohr (5) durch die gleiche Luft mit niederem Druck und Raumtemperatur gespeist werden.
EP95830449A 1994-10-31 1995-10-26 Ölbrenner mit Druckluftzerstäuber Expired - Lifetime EP0709621B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBO940477 1994-10-31
ITBO940477A IT1274087B (it) 1994-10-31 1994-10-31 Bruciatore ad olio con polverizzazione ad aria

Publications (3)

Publication Number Publication Date
EP0709621A2 EP0709621A2 (de) 1996-05-01
EP0709621A3 EP0709621A3 (de) 1998-02-04
EP0709621B1 true EP0709621B1 (de) 2000-04-05

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Application Number Title Priority Date Filing Date
EP95830449A Expired - Lifetime EP0709621B1 (de) 1994-10-31 1995-10-26 Ölbrenner mit Druckluftzerstäuber

Country Status (4)

Country Link
EP (1) EP0709621B1 (de)
DE (1) DE69516081T2 (de)
ES (1) ES2147277T3 (de)
IT (1) IT1274087B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ308898B6 (cs) * 2020-12-22 2021-08-11 Vysoké Učení Technické V Brně Olejový hořák s vnější atomizací kapalného paliva

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2875584B1 (fr) * 2004-09-23 2009-10-30 Snecma Moteurs Sa Injecteur a effervescence pour systeme aeromecanique d'injection air/carburant dans une chambre de combustion de turbomachine
CN110657428B (zh) * 2019-11-04 2024-10-25 泉州阿泰机械有限公司 一种沥青搅拌站用低氮燃烧器
CN119957905B (zh) * 2025-02-28 2025-11-18 宜春绿泉新能源科技有限公司 一种喷头雾化器及炉头装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4221558A (en) * 1978-02-21 1980-09-09 Selas Corporation Of America Burner for use with oil or gas
US4595143A (en) * 1983-07-20 1986-06-17 Parker-Hannifin Corporation Air swirl nozzle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ308898B6 (cs) * 2020-12-22 2021-08-11 Vysoké Učení Technické V Brně Olejový hořák s vnější atomizací kapalného paliva

Also Published As

Publication number Publication date
ES2147277T3 (es) 2000-09-01
IT1274087B (it) 1997-07-15
ITBO940477A1 (it) 1996-05-01
ITBO940477A0 (it) 1994-10-31
DE69516081T2 (de) 2000-09-14
EP0709621A2 (de) 1996-05-01
EP0709621A3 (de) 1998-02-04
DE69516081D1 (de) 2000-05-11

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