EP0030927B1 - Blowing nozzle - Google Patents

Blowing nozzle Download PDF

Info

Publication number
EP0030927B1
EP0030927B1 EP80850187A EP80850187A EP0030927B1 EP 0030927 B1 EP0030927 B1 EP 0030927B1 EP 80850187 A EP80850187 A EP 80850187A EP 80850187 A EP80850187 A EP 80850187A EP 0030927 B1 EP0030927 B1 EP 0030927B1
Authority
EP
European Patent Office
Prior art keywords
blowing
nozzle
openings
flanges
shell surface
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
Application number
EP80850187A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0030927A1 (en
Inventor
Sivert Karlsson
Lennart Olsson
Alf Sätherberg
Claes Tisell
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.)
Foerenade Fabriksverken AB
Original Assignee
Foerenade Fabriksverken AB
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 Foerenade Fabriksverken AB filed Critical Foerenade Fabriksverken AB
Priority to AT80850187T priority Critical patent/ATE6406T1/de
Publication of EP0030927A1 publication Critical patent/EP0030927A1/en
Application granted granted Critical
Publication of EP0030927B1 publication Critical patent/EP0030927B1/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/005—Nozzles or other outlets specially adapted for discharging one or more gases

Definitions

  • the present invention relates to a blowing nozzle for a blowing tool, which nozzle has at least two, preferably more outflow passages, each with a first end adapted to be supplied from the blowing tool with a pressurized gaseous fluid and with a second end comprising a blowing opening adapted to deliver said fluid to an atmosphere surrounding the nozzle, the blowing openings being situated in a shell surface on the nozzle which forms an acute angle with the central axis of the nozzle (US-A-2 893 646).
  • Such nozzles can be applied to a large number of different types of blowing tool.
  • An example of the use of such a blowing tool is the blowing clean of an object, for example a workpiece, with air or another gas, for example during turning and milling.
  • Other examples are cooling, heating and drying and acting on the movement of various parts, for example in automatic machines.
  • the invention as claimed is intended to remedy these drawbacks.
  • This object is achieved by the provision of radial flanges between the blowing openings. In this way the blowing openings are protected against damages while at the same time the flanges serve as partition walls between fluid streams from adjacent blowing openings such that interaction between these fluid streams is avoided at least near the blowing openings.
  • Figure 1 shows a longitudinal section of the nozzle, where a small portion is also shown in side view
  • Figure 2 shows a view from the front of the nozzle.
  • 1 designates a nozzle in general with a nozzle body 2, preferably of metal, adapted to be secured by means of suitable connection, to a blowing tool 3 indicated by broken lines.
  • the blowing tool 3 does not constitute a part of the present invention so that it is not described in detail here.
  • the nozzle body 2 comprises a back portion 4, which becomes narrower in a taper forwards, and the external shell surface 4a of which, which is preferably axially symmetrical, forms the angle a with the central axis 5 of the nozzle. 1.
  • the back portion 4 merges at 6 into an intermediate portion 7 which becomes narrower in a taper forwards and the external shell surface 7a of which, which is preferably axially symmetrical, forms the angle A with the central axis 5 of the nozzle body 1.
  • the angle a is preferably less than 15°. It can even be 0° in which case the shell surface 4a is thus parallel with the central axis 5.
  • the angle f3 is about 20° but can have other values as described in more detail below.
  • the angle P can be greater than, equal to or smaller that the angle a.
  • the intermediate portion 7 merges at the front into a rounded nose portion 8.
  • a cylindrical bore hole 9 is formed in the body 2 and merges at the front into a bore hole 10 which becomes narrower in a taper.
  • the wall of the bore hole 10 is preferably parallel to the shell surface 7a.
  • the bore hole 10 merges at the front into a cylindrical bore hole 11 which ends with a tapered bore hole 12.
  • the bore holes 9 and 10 together form a chamber 13 which is adapted to be supplied from the blowing tool 3 with a pressurized gaseous fluid, the pressure of which is more than 4 bars, preferably about 4-8 bars.
  • the bore holes 11 and 12 constitute a seat for a supporting body, not shown, for a valve, not shown, which is included in the blowing tool and which is adapted to regulate the streams of fluid through the blowing tool. In the forms of embodiment of the invention where such a supporting body does not occur, the bore holes 11 and 12 are absent. Otherwise, in the last- mentioned case, these bore holes would lead to an increased noise level.
  • the ducts 14 extend substantially parallel to the central axis 5 of the nozzle.
  • the entrance to the ducts 14 consists of inlets 15 in the wall of the bore hole 10, while the outlet of the ducts 14 consists of blowing openings 16 in the external shell surface 7a of the intermediate portion 7.
  • the openings 15 and 16 form the angle A with the longitudinal direction of the ducts 14, the openings are ellipsoidal, the major axis of the ellipse being D/sin f3.
  • the openings 15 and 16 have a larger area than the cross-sectional area of the ducts.
  • wing-shaped radial flanges 17 which extend with increasing height from the back end of the body portion 4 to just in front of the openings 16 where the edge of the flanges is rounded at 18. If the angle a is nil, however, the flanges 17 nevertheless have a constant height along the shell surface 4a. In front of the openings 16, the flanges have a height H, which should be greater that the diameter D of the ducts 14, preferably greater than D/sin ⁇ .
  • the openings 16 are protected from damage which might otherwise occur as a result of the orientation and shaping of the blowing openings 16. Such damage can lead to an increased noise level.
  • the presence of the flanges therefore ensures that the low noise level is retained.
  • Another advantage of the flanges 17 is that they serve as a skin protection during the handling of the blowing tool.
  • the flanges 17 may appropriately be made of metallic material but they can also be of plastics, rubber or like material.

Landscapes

  • Nozzles (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)
  • Looms (AREA)
  • Cleaning In General (AREA)
  • Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Saccharide Compounds (AREA)
  • Paper (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
EP80850187A 1979-12-12 1980-12-10 Blowing nozzle Expired EP0030927B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80850187T ATE6406T1 (de) 1979-12-12 1980-12-10 Blasduese.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE7910216A SE7910216L (sv) 1979-12-12 1979-12-12 Blasmunstycke
SE7910216 1979-12-12

Publications (2)

Publication Number Publication Date
EP0030927A1 EP0030927A1 (en) 1981-06-24
EP0030927B1 true EP0030927B1 (en) 1984-02-29

Family

ID=20339532

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80850187A Expired EP0030927B1 (en) 1979-12-12 1980-12-10 Blowing nozzle

Country Status (10)

Country Link
EP (1) EP0030927B1 (enrdf_load_stackoverflow)
JP (1) JPH0130540B2 (enrdf_load_stackoverflow)
AT (1) ATE6406T1 (enrdf_load_stackoverflow)
AU (2) AU538248B2 (enrdf_load_stackoverflow)
DE (1) DE3066775D1 (enrdf_load_stackoverflow)
DK (1) DK145655C (enrdf_load_stackoverflow)
FI (1) FI68769C (enrdf_load_stackoverflow)
NO (1) NO812724L (enrdf_load_stackoverflow)
SE (1) SE7910216L (enrdf_load_stackoverflow)
WO (1) WO1981001669A1 (enrdf_load_stackoverflow)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE448828B (sv) * 1985-06-07 1987-03-23 Ingemanssons Ingenjorsbyra Ab Munstycke
SE451362B (sv) * 1985-08-09 1987-10-05 Hans Bengt Folke Moss Blasmunstycke
AU1091188A (en) * 1987-05-21 1988-11-24 W.L. Gore & Associates, Inc. Nozzle for gas flow-heated sealing machine
DE4403327A1 (de) * 1994-02-03 1995-08-10 Karl Bauch Reinigungsvorrichtung an mehrachsigen Werkzeugmaschinen
US6137237A (en) 1998-01-13 2000-10-24 Fusion Lighting, Inc. High frequency inductive lamp and power oscillator
DE102010046710A1 (de) * 2010-09-28 2012-03-29 Lucien Masson Pressluftwerkzeug zum Ausblasen
WO2016161498A1 (en) * 2015-04-09 2016-10-13 Nex Flow Air Products Corp. Blowing nozzle
WO2017068613A1 (ja) * 2015-10-21 2017-04-27 株式会社キョクトー エアノズル
IT201600129658A1 (it) * 2016-12-21 2018-06-21 Gabriele Ghidini Ugello silenziato
DE102017202258B3 (de) 2017-02-13 2018-07-26 Ford Global Technologies, Llc Düse zum Ausblasen von Druckluft

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB434973A (en) * 1934-05-22 1935-09-12 Smith Bernard Improvements in or relating to exhaust silencers for internal combustion engines
GB441764A (en) * 1934-03-22 1936-01-20 Einar Olof Eugen Tyden Silencer for internal combustion engines
DE869721C (de) * 1949-08-14 1953-03-05 Frankfurter Maschb Ag Vorm Pok Aufbohren der Sicherheitsbohrungen von Kesselstehbolzen
US2893646A (en) * 1958-10-07 1959-07-07 Charles C Batts Fluid spray nozzle
DE2135298A1 (de) * 1971-07-15 1973-03-15 Daimler Benz Ag Druckluftduese fuer reinigungszwecke
US3744723A (en) * 1969-06-05 1973-07-10 D Davis Pipe cleaning nozzle
US3770211A (en) * 1971-11-03 1973-11-06 Gen Electric Gas distributor for casting mold manufacture
USB586215I5 (enrdf_load_stackoverflow) * 1975-06-12 1976-01-20
US3951171A (en) * 1971-07-15 1976-04-20 Gibel Stephen J Self-pressure regulating air ejector

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2917244A (en) * 1957-08-29 1959-12-15 Ralph L Gould Safety air gun
US2936158A (en) * 1958-12-24 1960-05-10 Kentile Inc Heat exchange rolls
DE2162930A1 (de) * 1971-12-17 1973-06-28 Krautzberger & Co Arbeitsduese fuer mit unter druck stehendem arbeits- bzw. traegermedium, insbesondere druckluft, arbeitende blas- bzw. spritzvorrichtungen
US4050632A (en) * 1976-09-15 1977-09-27 Gad-Jets, Inc. Low noise air nozzle
DE2644625A1 (de) * 1976-10-02 1978-04-06 Eutectic Corp Flamm-spritzpistole
JPS5662664A (en) * 1979-10-25 1981-05-28 Kuroki Kogyosho:Kk Roll for transfer of hot metal piece

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB441764A (en) * 1934-03-22 1936-01-20 Einar Olof Eugen Tyden Silencer for internal combustion engines
GB434973A (en) * 1934-05-22 1935-09-12 Smith Bernard Improvements in or relating to exhaust silencers for internal combustion engines
DE869721C (de) * 1949-08-14 1953-03-05 Frankfurter Maschb Ag Vorm Pok Aufbohren der Sicherheitsbohrungen von Kesselstehbolzen
US2893646A (en) * 1958-10-07 1959-07-07 Charles C Batts Fluid spray nozzle
US3744723A (en) * 1969-06-05 1973-07-10 D Davis Pipe cleaning nozzle
DE2135298A1 (de) * 1971-07-15 1973-03-15 Daimler Benz Ag Druckluftduese fuer reinigungszwecke
US3951171A (en) * 1971-07-15 1976-04-20 Gibel Stephen J Self-pressure regulating air ejector
US3770211A (en) * 1971-11-03 1973-11-06 Gen Electric Gas distributor for casting mold manufacture
USB586215I5 (enrdf_load_stackoverflow) * 1975-06-12 1976-01-20

Also Published As

Publication number Publication date
JPH0130540B2 (enrdf_load_stackoverflow) 1989-06-20
JPS56501674A (enrdf_load_stackoverflow) 1981-11-19
EP0030927A1 (en) 1981-06-24
DK145655C (da) 1983-07-18
AU6578881A (en) 1981-07-06
FI68769C (fi) 1985-11-11
FI811809L (fi) 1981-06-13
DK266581A (da) 1981-06-25
DE3066775D1 (en) 1984-04-05
FI68769B (fi) 1985-07-31
NO812724L (no) 1981-08-11
AU538248B2 (en) 1984-08-02
DK145655B (da) 1983-01-17
WO1981001669A1 (en) 1981-06-25
SE7910216L (sv) 1981-06-13
ATE6406T1 (de) 1984-03-15

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