EP0030927B1 - Blowing nozzle - Google Patents
Blowing nozzle Download PDFInfo
- 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
Links
Images
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)
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
- Looms (AREA)
- Jet Pumps And Other Pumps (AREA)
- Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
- Paper (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
- Saccharide Compounds (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
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)
Families Citing this family (10)
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 |
CA2981987C (en) | 2015-04-09 | 2022-07-19 | 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)
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 (US20090163788A1-20090625-C00002.png) * | 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)
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 |
-
1979
- 1979-12-12 SE SE7910216A patent/SE7910216L/ not_active Application Discontinuation
-
1980
- 1980-12-10 WO PCT/SE1980/000330 patent/WO1981001669A1/en active IP Right Grant
- 1980-12-10 AU AU65788/80A patent/AU538248B2/en not_active Ceased
- 1980-12-10 AT AT80850187T patent/ATE6406T1/de not_active IP Right Cessation
- 1980-12-10 DE DE8080850187T patent/DE3066775D1/de not_active Expired
- 1980-12-10 JP JP56500201A patent/JPH0130540B2/ja not_active Expired
- 1980-12-10 EP EP80850187A patent/EP0030927B1/en not_active Expired
- 1980-12-10 AU AU6578881A patent/AU6578881A/xx active Pending
-
1981
- 1981-06-10 FI FI811809A patent/FI68769C/fi not_active IP Right Cessation
- 1981-06-17 DK DK266581A patent/DK145655C/da not_active IP Right Cessation
- 1981-08-11 NO NO812724A patent/NO812724L/no unknown
Patent Citations (9)
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 (US20090163788A1-20090625-C00002.png) * | 1975-06-12 | 1976-01-20 |
Also Published As
Publication number | Publication date |
---|---|
DK145655B (da) | 1983-01-17 |
DE3066775D1 (en) | 1984-04-05 |
JPH0130540B2 (US20090163788A1-20090625-C00002.png) | 1989-06-20 |
AU6578881A (en) | 1981-07-06 |
FI68769C (fi) | 1985-11-11 |
FI811809L (fi) | 1981-06-13 |
AU538248B2 (en) | 1984-08-02 |
JPS56501674A (US20090163788A1-20090625-C00002.png) | 1981-11-19 |
DK266581A (da) | 1981-06-25 |
SE7910216L (sv) | 1981-06-13 |
WO1981001669A1 (en) | 1981-06-25 |
NO812724L (no) | 1981-08-11 |
DK145655C (da) | 1983-07-18 |
EP0030927A1 (en) | 1981-06-24 |
ATE6406T1 (de) | 1984-03-15 |
FI68769B (fi) | 1985-07-31 |
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