US3799732A - Burner for liquid fuels - Google Patents

Burner for liquid fuels Download PDF

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Publication number
US3799732A
US3799732A US00287710A US28771072A US3799732A US 3799732 A US3799732 A US 3799732A US 00287710 A US00287710 A US 00287710A US 28771072 A US28771072 A US 28771072A US 3799732 A US3799732 A US 3799732A
Authority
US
United States
Prior art keywords
burner
nozzle
ring member
diameter
terminal cone
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
US00287710A
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English (en)
Inventor
W Brodlin
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.)
WEISHAUPT M GmbH
Original Assignee
WEISHAUPT M 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 WEISHAUPT M GmbH filed Critical WEISHAUPT M GmbH
Application granted granted Critical
Publication of US3799732A publication Critical patent/US3799732A/en
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
    • F23D11/36—Details
    • F23D11/40—Mixing tubes; Burner heads
    • 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

Definitions

  • a ring member is arranged a small distance in front of the nozzle, between it and the mixture distributing member, this ring member having an inside diameter smaller than and an outside diameter larger than the diameter of the terminal cone orifice.
  • the outlet cross-section of the terminal cone of the air supply tube lies in the plane of the pressure atomizer nozzle, that this cross-section is smaller than the diameter of the peripheral contour of the mixture distributing member and/or the cross-section of the surface of this member determined through the peripheral contour, and that this cross-section is dimensioned so that the outflowing air forms a mixture with the fuel at a stream velocity which lies above the flame propagation velocity, and that the openings in the mixture distributing member are shaped like boreholes.
  • a ring member a small distance in front of the orifice of the terminal cone inbetween this cone and the mixture distributing member.
  • the inside diameter of the ring is to be smaller than and its outside diameter larger than the diameter of the terminal core in the region of its orifice.
  • Dynamic tests carried out show that, as a result of this, the air jet emerging from the air nozzle experiences a concentration and thereby a small low pressure zone is produced.
  • This low pressure zone effects an intensification of the mixing of the oil and air of combustion and in this manner permits the formation during the ignition process of an incipient flame already in front of the mixture distributing member. After a few seconds have passed, that is, when the distributing member is warmed up sufficiently, and after switching the ignition device off, the flame is firmly set on the distributing member and visibly burns only from this location.
  • the ring member is suitable to form as an open hollow body, the open side of which faces away from the terminal cone.
  • hot air of combustion is drawn into the gap between the ring and the terminal cone of the air supply tube, and this hot air aids in preparation of the mixture, especially during the ignition stage.
  • the result is avoided that, despite the constriction of the stream with subsequent expansion, oil particles of the air-oil mixture are thrown outwardly.
  • a particularly simple design of the ring member results when the ring member which is shaped as a hollow body has a semi-circular cross-section.
  • the inside diameter of the ring member should be approximately 4 to 6mm smaller than the orifice diameter of the terminal cone and its outside diameter should be approximately 25 to 35 mm larger than its inside diameter.
  • an air supply tube 2 whose conically inwardly tapering truncated terminal cone 3 is formed as an air regulating nozzle.
  • the orifice 4 of this air nozzle lies in the plane of the orifice 5 of the burner nozzle 6 which is arranged coaxially with the air supply tube and respectively also with the terminal cone.
  • the two ignition electrodes provided are designated with reference numeral 7.
  • Coordinated with the burner is a mixture distributing member 8 which is adjustably positioned by means of a holder or the like 9 in a known manner.
  • the mixture distributing member 8 has bore holes 10; it is constructed as a hollow sphere.
  • the terminal cone 3 of the air supply tube 2 which is formed as an air regulating nozzle
  • air coming from a blower is formed into a round, tight air jet which accelerates the injected by drocarbon in the direction of the mixture distributing member in such a way that a complete mixture of the fuelportion with air of combustion portion results at a stream velocity which lies above the flame propagation velocity and such that the so prepared fuel mixture va porizes after ignition andburns behind the mixture distributing member with a blue flame, whereby after switching off the ignition, the fuel mixture does not flow as an ignited mixture through the interval between the orifice of the terminal cone of the air supply tube and the distributing member.
  • the cross-section of the k terminal cone 3 is smaller than the surface of the mixture distributing member 8 determined through the peripheral contour so that the concentrated air jet im pinges upon the outer surface of the mixture distributing member, to the extentthat it does not flow through the openings in this member.
  • the terminal cone of the air supply tube is formed as an air regulating nozzle.
  • a ring member 13 a small distance in front of the orifice 4 of the terminal cone 3 between this cone and the mixture distributing memberS.
  • the ring member 13 may be axially adjusted by a suitable means at 14.
  • the inside diameter d of this ring member is smaller than and its outside diameter d is larger than the diameter d of the terminal cone 3 in the region of its orifice 4.
  • the distance a between the orifice of the terminal cone 3 and the ring member 13 suitably amounts to between 1 and 3 mm; the inside diameter d is approximately 4 to 6 mm smaller than the diameter d of the orifice of the terminal cone 3 and the outside diameter d is approximately 25 to 35 mm larger than the inside diameter d
  • This ring member 13 is designed as an open hollow body with a semi-circular cross-section, the open side of which is turned away from the terminal cone.
  • this borecontaining member can also be provided on its side facing the burner nozzle 6 with a convex recess in the region designated by reference numeral 11 directed towards the inside of the mixture distributing member 8, which recess in addition to the provided boreholes has a middle opening whose diameter is smaller than the diameter of the other boreholes 10 of the distributing member.
  • a burner for liquid fuels comprising l) a pressure atomizer nozzle arranged concentrically within an air supply tube, said air supply tube being provided with an inwardly tapering truncated terminal cone, and (2) a mixture distributing means axially adjustably arranged at an interval in front of the said burner nozzle, said distributing means having a convex outer surface provided with openings opposite said nozzle, the outlet crosssection of the said terminal cone (a) lying in the plane of the atomizer nozzle, (b) being smaller than the diameter of the peripheral contour of the mixture distributing means and/or the cross-section of the surface of said means determined through its peripheral contour and (c) being dimensioned so that the outflowing air forms a mixture with the fuel at a stream velocity which lies above the flame propagation velocity, wherein the improvement comprises a ring member arranged a small distance in front of the orifice of the said terminal cone between the cone and the mixture distributing means, the inside diameter of said ring member being smaller than and its outside diameter being larger than the
  • a burner according to claim 1, wherein the ring member is formed as an open hollow body, the open side of which faces away from the terminal cone.
  • a burner according to claim 2 wherein the hollow body has a semi-circular cross-section 4.
  • a burner according to claim 1 wherein means are provided for axially adjusting the ring member with respect to the terminal cone.

Landscapes

  • 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)
  • Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
US00287710A 1971-09-21 1972-09-11 Burner for liquid fuels Expired - Lifetime US3799732A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2147108A DE2147108A1 (de) 1971-09-21 1971-09-21 Brenner fuer fluessige brennstoffe

Publications (1)

Publication Number Publication Date
US3799732A true US3799732A (en) 1974-03-26

Family

ID=5820167

Family Applications (1)

Application Number Title Priority Date Filing Date
US00287710A Expired - Lifetime US3799732A (en) 1971-09-21 1972-09-11 Burner for liquid fuels

Country Status (23)

Country Link
US (1) US3799732A (enrdf_load_stackoverflow)
JP (1) JPS4849033A (enrdf_load_stackoverflow)
AT (1) AT312780B (enrdf_load_stackoverflow)
AU (1) AU445630B2 (enrdf_load_stackoverflow)
BE (1) BE789108R (enrdf_load_stackoverflow)
BG (1) BG21043A4 (enrdf_load_stackoverflow)
BR (1) BR7206549D0 (enrdf_load_stackoverflow)
CA (1) CA956565A (enrdf_load_stackoverflow)
CH (1) CH555513A (enrdf_load_stackoverflow)
DD (1) DD99215A6 (enrdf_load_stackoverflow)
DE (1) DE2147108A1 (enrdf_load_stackoverflow)
ES (1) ES406859A2 (enrdf_load_stackoverflow)
FR (1) FR2154268A6 (enrdf_load_stackoverflow)
GB (1) GB1338973A (enrdf_load_stackoverflow)
HU (1) HU164546B (enrdf_load_stackoverflow)
IE (1) IE36721B1 (enrdf_load_stackoverflow)
IT (1) IT1013531B (enrdf_load_stackoverflow)
LU (1) LU66132A1 (enrdf_load_stackoverflow)
NL (1) NL7212112A (enrdf_load_stackoverflow)
NO (1) NO131142C (enrdf_load_stackoverflow)
PL (1) PL83578B1 (enrdf_load_stackoverflow)
RO (1) RO61902A (enrdf_load_stackoverflow)
ZA (1) ZA726463B (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4021188A (en) * 1973-03-12 1977-05-03 Tokyo Gas Company Limited Burner configurations for staged combustion
US4111642A (en) * 1975-12-01 1978-09-05 Max Weishaupt Gmbh Burner for liquid fuels
US4397631A (en) * 1980-09-08 1983-08-09 The Carlin Company Pre-mix forced draft power gas burner
US4473349A (en) * 1982-05-17 1984-09-25 Akihiko Kumatsu Liquid hydrocarbon fuel combustor
US6485294B2 (en) * 2000-12-20 2002-11-26 Lennox Manufacturing Inc. NOx reduction device
US20100279236A1 (en) * 2009-05-04 2010-11-04 Burn Booster Oy Device for intensifying a flame

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS566730Y2 (enrdf_load_stackoverflow) * 1974-03-05 1981-02-14
JPS50134129U (enrdf_load_stackoverflow) * 1974-04-19 1975-11-05
DE3630206A1 (de) * 1985-09-06 1987-03-19 Fuji Electric Co Ltd Tintenstrahldruckkopf
FR2741424B1 (fr) * 1995-11-17 1998-01-02 Schlumberger Services Petrol Bruleur a faible pollution, pour essais de puits petroliers

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3212556A (en) * 1962-03-16 1965-10-19 Johansson Ernest Oil vaporizing device for oil burners
US3223141A (en) * 1962-10-08 1965-12-14 Sinclair Research Inc Liquid fuel burner with combustion aid
US3385527A (en) * 1965-12-15 1968-05-28 Montrose K. Drewry Oil burner head
US3693887A (en) * 1969-11-17 1972-09-26 Wilhelm Genannt Willi Brodlin Method and apparatus for gasifying liquid fuels and effecting a complete combustion thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3212556A (en) * 1962-03-16 1965-10-19 Johansson Ernest Oil vaporizing device for oil burners
US3223141A (en) * 1962-10-08 1965-12-14 Sinclair Research Inc Liquid fuel burner with combustion aid
US3385527A (en) * 1965-12-15 1968-05-28 Montrose K. Drewry Oil burner head
US3693887A (en) * 1969-11-17 1972-09-26 Wilhelm Genannt Willi Brodlin Method and apparatus for gasifying liquid fuels and effecting a complete combustion thereof

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4021188A (en) * 1973-03-12 1977-05-03 Tokyo Gas Company Limited Burner configurations for staged combustion
US4111642A (en) * 1975-12-01 1978-09-05 Max Weishaupt Gmbh Burner for liquid fuels
US4397631A (en) * 1980-09-08 1983-08-09 The Carlin Company Pre-mix forced draft power gas burner
US4473349A (en) * 1982-05-17 1984-09-25 Akihiko Kumatsu Liquid hydrocarbon fuel combustor
US6485294B2 (en) * 2000-12-20 2002-11-26 Lennox Manufacturing Inc. NOx reduction device
US20100279236A1 (en) * 2009-05-04 2010-11-04 Burn Booster Oy Device for intensifying a flame
US8277214B2 (en) * 2009-05-04 2012-10-02 Burn Booster Oy Device for intensifying a flame

Also Published As

Publication number Publication date
ZA726463B (en) 1973-06-27
RO61902A (enrdf_load_stackoverflow) 1977-07-15
AT312780B (de) 1974-01-25
IT1013531B (it) 1977-03-30
BE789108R (fr) 1973-01-15
NL7212112A (enrdf_load_stackoverflow) 1973-03-23
AU4605372A (en) 1974-02-28
IE36721B1 (en) 1977-02-02
HU164546B (enrdf_load_stackoverflow) 1974-02-28
PL83578B1 (enrdf_load_stackoverflow) 1975-12-31
LU66132A1 (enrdf_load_stackoverflow) 1973-01-17
IE36721L (en) 1973-03-21
FR2154268A6 (enrdf_load_stackoverflow) 1973-05-04
JPS4849033A (enrdf_load_stackoverflow) 1973-07-11
BR7206549D0 (pt) 1973-09-20
NO131142B (enrdf_load_stackoverflow) 1974-12-30
DD99215A6 (enrdf_load_stackoverflow) 1973-07-20
ES406859A2 (es) 1975-10-01
DE2147108A1 (de) 1973-04-05
AU445630B2 (en) 1974-02-28
GB1338973A (en) 1973-11-28
NO131142C (enrdf_load_stackoverflow) 1975-04-09
BG21043A4 (bg) 1976-01-20
CH555513A (de) 1974-10-31
CA956565A (en) 1974-10-22

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