EP0017869A1 - Ventilateur monté pivotant - Google Patents

Ventilateur monté pivotant Download PDF

Info

Publication number
EP0017869A1
EP0017869A1 EP80101807A EP80101807A EP0017869A1 EP 0017869 A1 EP0017869 A1 EP 0017869A1 EP 80101807 A EP80101807 A EP 80101807A EP 80101807 A EP80101807 A EP 80101807A EP 0017869 A1 EP0017869 A1 EP 0017869A1
Authority
EP
European Patent Office
Prior art keywords
rudder blade
axial fan
control flap
air flow
bend
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.)
Granted
Application number
EP80101807A
Other languages
German (de)
English (en)
Other versions
EP0017869B1 (fr
Inventor
Manfred Leisenberg
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0017869A1 publication Critical patent/EP0017869A1/fr
Application granted granted Critical
Publication of EP0017869B1 publication Critical patent/EP0017869B1/fr
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F04D25/10—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provisions for automatically changing direction of output air
    • F04D25/105—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provisions for automatically changing direction of output air by changing rotor axis direction, e.g. oscillating fans

Definitions

  • the invention relates to an axial fan which is pivotally mounted about a vertical axis and has a rudder blade which projects parallel to the latter and projects into the air flow and is adjustably held on the side facing the fan wheel.
  • axial fan of this type is known from DE-PS 11 14 977 and has proven itself in practice.
  • the rudder blade is designed as a flat surface, so that with a small adjustment, a large blowing surface is required in order to effect sufficient rotation of the fan. If, on the other hand, the rudder blade is adjusted too far, the fan rotates too quickly so that vibrations can occur on the brackets. With this configuration of the rudder blade, it is also possible that the fan, provided that the rudder blade adjusts perpendicularly to the propeller surface, no longer performs any rotational movement.
  • the known axial fan since a plurality of adjustable louvre flaps arranged one above the other, which are inserted in the direction of flow behind the rudder blade in the fan housing, are provided for deflecting the air flow upwards or downwards, the known axial fan also has a very large axial extension so that it rotates a large amount of free space is required.
  • the aim here is to ensure that the speed of rotation of the fan about the vertical axis can be set extremely precisely without difficulty in accordance with the respective conditions, so that speeds of rotation that are too high can be avoided with certainty. Furthermore, it should be excluded that its rotation stops at all. Furthermore, the axial length compared to the known design should be significantly reduced without affecting the deflection of the air flow up or down.
  • this is achieved with an axial fan of the aforementioned type in that the rudder blade is bent off one or more times to one side in the direction of flow of the air flow or is laterally bent.
  • the lateral bend or bend at the free end of the rudder blade which extends over approximately 2/5 of its width, the bend being inclined in a simple manner as a plane at an angle of approximately 20 ° to 45 ° to the rudder blade Bending can be formed.
  • a control flap which is preferably perpendicular to the rudder blade and in the middle, should advantageously be provided, which should be equipped with a clearance, with incisions or the like in which the rudder blade engages in order to adjust the rotational speed of the axial fan.
  • the incorporated in the control flap cutout for receiving the rudder blade is expediently form of a slot, one side perpendicular to the pivot axis of the control flap and the other side at an angle of up to 30 0 inclined extending to the axially perpendicular section.
  • the axial fan designed according to the invention is not only very simple in terms of its design and therefore economical to produce with respect to the component causing the rotation and deflection of the air flow, but also very reliable and versatile, especially for drying ceramic moldings . If the fan blade of the fan is bent or bent in the direction of flow of the air flow generated by the fan wheel, it is ensured that sufficient torque is always generated, even with the rudder blade oriented perpendicular to the fan wheel, by which the fan is set in rotation . The air flow acting on the bend does this in a reliable manner. And by tilting the rudder blade, the speed of rotation can be increased without any problems, whereby sensitive speed control is also possible based on a minimum speed, which is generated when the rudder blade is in the vertical position and thus only when the crank is applied.
  • a single control flap is provided and that for the deflection of the air stream up or down the other only, in which the rudder blade is engaged, is not given to only a very short length and the rotational circle diameter of the inventively embodied A y iallbounders is considerably smaller than in the prior art embodiment , but it is certainly also excluded that the rotational speed increases too much.
  • the rudder blade guided in the control flap can only be adjusted within limits, so that incorrect settings are not possible.
  • the construction effort required to create an axial fan, the speed of rotation and the direction of the air flow can be easily adjusted in the short term, and which therefore allows easy drying and gentle drying without the occurrence of dead corners, is extremely low, nevertheless high operational reliability guaranteed.
  • the fan designed according to the proposal can therefore be used in a particularly advantageous manner in drying plants for drying ceramic moldings.
  • the axial fan denoted by 1 in FIGS. 1 and 2 is rotatably mounted on a stand 2 about the vertical axis 7 and essentially consists of a fan wheel 3, which is non-rotatably on the output shaft 5 of an electric motor 4, which is provided with a counterweight 6 is arranged.
  • the fan wheel 3 is surrounded by a housing 8 and is covered by a protective grille 9.
  • a rudder blade 11 is used, which can be pivoted about the axis 12, which likewise runs perpendicularly.
  • the pivotable mounting of the rudder blade 11 is accomplished here by means of screws 14 which pass through the housing 8 and are screwed into eyes 13 attached to the rudder blade 11.
  • the rudder blade 11 is cranked so that a sufficient moment is always generated in order to set the axial fan 1 in rotation by the air flow A.
  • this is provided at its free end with a bevel 15, which is at an angle dl of z. B. 30 ° to the rudder blade 11 inclined. Even if the rudder blade 11 is perpendicular to the fan wheel 3, the bevel 15 is thus acted on, so that the axial fan 1 always rotates about the axis 7 when the fan wheel 3 is switched on.
  • the speed of rotation of the axial fan 1 can be adapted and varied according to the respective requirements.
  • grids 16 can be attached to the fan housing 8, into which the rudder blade 11 can be locked in predetermined angular positions.
  • a control flap 21 is also provided in the axial fan 1, which is also pivotable, and is attached to the fan housing 3 about the axis 22. Screws 24, which pass through the fan housing 3 and are screwed into a shaft 23 fastened to the control flap 21, are again used for this purpose.
  • the air flow A of the axial fan 1 can in this way more or less up or down to z. B. to be dried moldings to be directed.
  • the control flap 21 is further equipped with a recess 25, which is designed as a slot, one wall 26 of which is perpendicular to the fan wheel 3 and the other wall 27 at an angle / 3 of z. B. 20 ° to the wall 26.
  • a recess 25 which is designed as a slot, one wall 26 of which is perpendicular to the fan wheel 3 and the other wall 27 at an angle / 3 of z. B. 20 ° to the wall 26.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP80101807A 1979-04-19 1980-04-03 Ventilateur monté pivotant Expired EP0017869B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19792915822 DE2915822A1 (de) 1979-04-19 1979-04-19 Axialluefter
DE2915822 1979-04-19

Publications (2)

Publication Number Publication Date
EP0017869A1 true EP0017869A1 (fr) 1980-10-29
EP0017869B1 EP0017869B1 (fr) 1983-01-12

Family

ID=6068718

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80101807A Expired EP0017869B1 (fr) 1979-04-19 1980-04-03 Ventilateur monté pivotant

Country Status (3)

Country Link
EP (1) EP0017869B1 (fr)
DE (2) DE2915822A1 (fr)
DK (1) DK166280A (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU596884B2 (en) * 1988-01-20 1990-05-17 Ahn, Young Jun Electric fan apparatus
KR100971350B1 (ko) * 2005-11-16 2010-07-20 시티알 매뉴팩쳐링 인더스트리즈 리미티드 변압기 콘서베이터 차단 밸브
CN105114343A (zh) * 2015-07-22 2015-12-02 中山火炬职业技术学院 智能转向空调扇及其控制方法
CN106402006A (zh) * 2016-11-18 2017-02-15 广西大学 一种智能电风扇
CN106438425A (zh) * 2016-11-18 2017-02-22 广西大学 一种自动调节电风扇
WO2022160844A1 (fr) * 2021-01-26 2022-08-04 珠海格力电器股份有限公司 Structure de soufflage d'air et ventilateur

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE375666C (de) * 1923-05-16 Hoppe & Schatte Vorm B R Oskar Kreisender Ventilator
US1596806A (en) * 1925-03-10 1926-08-17 Ciller Luis Electric fan
DE897901C (de) * 1951-06-20 1953-11-26 Siemens Ag Schwenkfaecher mit selbsttaetiger Umsteuerung
DE1114977B (de) * 1960-12-05 1961-10-12 Manfred Leisenberg Um eine senkrechte Achse schwenkbarer Axialluefter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE375666C (de) * 1923-05-16 Hoppe & Schatte Vorm B R Oskar Kreisender Ventilator
US1596806A (en) * 1925-03-10 1926-08-17 Ciller Luis Electric fan
DE897901C (de) * 1951-06-20 1953-11-26 Siemens Ag Schwenkfaecher mit selbsttaetiger Umsteuerung
DE1114977B (de) * 1960-12-05 1961-10-12 Manfred Leisenberg Um eine senkrechte Achse schwenkbarer Axialluefter

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU596884B2 (en) * 1988-01-20 1990-05-17 Ahn, Young Jun Electric fan apparatus
KR100971350B1 (ko) * 2005-11-16 2010-07-20 시티알 매뉴팩쳐링 인더스트리즈 리미티드 변압기 콘서베이터 차단 밸브
CN105114343A (zh) * 2015-07-22 2015-12-02 中山火炬职业技术学院 智能转向空调扇及其控制方法
CN106402006A (zh) * 2016-11-18 2017-02-15 广西大学 一种智能电风扇
CN106438425A (zh) * 2016-11-18 2017-02-22 广西大学 一种自动调节电风扇
WO2022160844A1 (fr) * 2021-01-26 2022-08-04 珠海格力电器股份有限公司 Structure de soufflage d'air et ventilateur

Also Published As

Publication number Publication date
DE3061576D1 (en) 1983-02-17
DE2915822A1 (de) 1980-10-23
DK166280A (da) 1980-10-20
EP0017869B1 (fr) 1983-01-12

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