EP0074486A1 - Prise d'air à registre coulissant avec un ventilateur actionné par un moteur - Google Patents

Prise d'air à registre coulissant avec un ventilateur actionné par un moteur Download PDF

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Publication number
EP0074486A1
EP0074486A1 EP82106943A EP82106943A EP0074486A1 EP 0074486 A1 EP0074486 A1 EP 0074486A1 EP 82106943 A EP82106943 A EP 82106943A EP 82106943 A EP82106943 A EP 82106943A EP 0074486 A1 EP0074486 A1 EP 0074486A1
Authority
EP
European Patent Office
Prior art keywords
ventilation
control
slide
slider
drive member
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
EP82106943A
Other languages
German (de)
English (en)
Other versions
EP0074486B1 (fr
Inventor
Julius Maus
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.)
Gretsch Unitas GmbH
Gretsch Unitas GmbH Baubeschlaege
Original Assignee
Gretsch Unitas GmbH
Gretsch Unitas GmbH Baubeschlaege
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 Gretsch Unitas GmbH, Gretsch Unitas GmbH Baubeschlaege filed Critical Gretsch Unitas GmbH
Priority to AT82106943T priority Critical patent/ATE18602T1/de
Publication of EP0074486A1 publication Critical patent/EP0074486A1/fr
Application granted granted Critical
Publication of EP0074486B1 publication Critical patent/EP0074486B1/fr
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/0263—Insulation for air ducts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/029—Duct comprising an opening for inspection, e.g. manhole
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/12—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of sliding members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise

Definitions

  • the invention relates to a slide ventilation with a. motor-driven blower, the ventilation slide of which can be moved by means of a drive mechanism.
  • Slider vents of the type mentioned at the outset as well as fanless slider vents in various designs are already known.
  • the variants with blowers have the advantage that, even in relatively windless weather, the space equipped with such a slide ventilation can be quickly and effectively ventilated and / or ventilated.
  • people sensitive to draft feel this strong aeration or ventilation as unpleasant and you usually have only the choice between inadequate or associated with strong draft ventilation.
  • the object of the invention is therefore to develop a slide ventilation according to the preamble of claim 1 so that an effective, but adapted to the needs ventilation is possible.
  • the slide ventilation is designed according to the preamble of claim 1 in accordance with the characterizing part of this claim.
  • the slide ventilation is continuously transferred from the closed position to the fully open position and vice versa via its drive mechanism. Due to the coupling of the drive member according to the invention with an adjusting device for the motor speed of the blower motor, the speed of the blower or fan can now also be changed continuously. Accordingly, the fan runs, for example, when the slide ventilation is half open with a reduced, e.g. half the speed, so that the room can still be adequately ventilated, but a draft effect is not, or at most, hardly observable. At the same time, of course, the air noise is reduced to such an extent that you hardly notice it or at least hardly notice it.
  • a particularly preferred embodiment of the invention is characterized in that the drive member is movably connected to a slider of a potentiometer which is in the circuit of the electrically driven blower motor, the closed slide ventilation of the stationary blower motor and the fully open slide ventilation of the current one, in particular the one with full Speed running fan motor is assigned.
  • a potentiometer instead of a potentiometer, other known electrical or electronic elements with a comparable method of operation can also be used with the same advantage. It is only important that the drive member executes a precisely predetermined back and forth movement when opening and closing the slide ventilation and that this can be used to adjust a potentiometer grinder or another "tap" of an electrical or electronic component.
  • a further development of the invention provides that the drive member is rotatably mounted and its rotary movement can be converted into a displacement movement of the ventilation slide by means of a link control or at least link-like control.
  • Such adjustment mechanisms are already known per se and are characterized by a simple construction, problem-free assembly and robust behavior. They usually also allow the drive to be mounted on the right or left end of the slide ventilation. From this rotation you can now derive the displacement movement of the potentiometer tap in a simple manner, wherein the potentiometer can also have an elongated shape.
  • the sliding contact of the potentiometer is advantageously articulated on a rotatable control element, in particular in the form of a control disk. Depending on the direction of rotation of the latter, the potentiometer sliding contact can be moved back and forth, thus increasing or reducing the blower motor speed.
  • a further variant of the invention provides that the gate control or the like comprises an eccentrically rotating control pin for the ventilation slide and a control slot of the latter which extends transversely to the direction of displacement of the ventilation slide, the ventilation slide being formed in two parts to form a control plate with a control slot.
  • the control plate is connected so that thrust and tensile forces can be transmitted.
  • the possibility of right and left arrangement of the drive is retained.
  • the control slot does not necessarily have to be an elongated hole act, rather it can also be open on one or two opposite sides.
  • a groove formed by strips or similar elevations is also equivalent to a punched-out control slot.
  • Another embodiment of the invention is characterized in that at least the "ventilation slots" of the ventilation slide are formed by a plurality of rows of holes resulting in a group of holes and the control plate has a row of pins which with a row of holes in the ventilation slide, in particular the outer edge of the associated outer "ventilation slot", is coupled. Accordingly, special measures for coupling the control plate are not necessary even when using yard goods and this special design of the ventilation slots, which prevents the entry of insects. For the rest, the latter is advantageously in Slidably mounted guides that serve to guide the ventilation slide. That is why it is equipped with a cranked coupling end that has the row of pins and which laterally overlaps the outermost edge of the ventilation slider.
  • a further embodiment of the invention provides that the control plate has an in particular edge-open, in the direction of displacement extending displacement limiting slot, which together with a stop bolt or the like of the ventilation housing forms a displacement limiting device.
  • a stroke limitation is achieved and, unless otherwise provided for, an exact maintenance of the two end positions of the ventilation slide.
  • this enables the ventilation slide to be attached to an openable, in particular hinged, housing cover without the risk that the ventilation slide can be moved into an unsuitable position for the subsequent coupling with the drive in the so-called cleaning position.
  • two opposing displacement limiting slots are provided, one or the other of which is used depending on the arrangement of the drive on the right or left slide ventilation end.
  • the rotatably mounted control member or the control disk carries a control cam which interacts with an end switch located in the circuit of the blower motor.
  • the assignment can be made, for example, so that the control cam holds the switch in its open position when the slide ventilation is closed and actuates the switching mechanism as soon as the slide ventilation is partially or fully opened.
  • This switch can also be used to advantageously switch a control lamp on and off, which signals whether the drive motor of the fan is completely switched off or on.
  • the ventilation housing can be opened and the blower with the blower motor and the potentiometer and the control member or the control disk are located in a first housing part, while a second, in particular foldable with the first connected housing part, the ventilation slide wearing.
  • this second housing part also has the housing ventilation openings which correspond to those of the ventilation slide with regard to their size and their mutual distance. However, they do not necessarily have to be groups of rows of holes, rather they are preferably rectangular openings.
  • the drive member is mounted on the second housing part and is designed as a twist grip or the like or connected to one in a rotationally fixed manner.
  • the slide ventilation is opened and closed by hand, and the speed of the blower motor depends on the set opening width of the slide ventilation.
  • the free end of the control pin of the link control of the ventilation slide engages in a coupling bore of the control member or the control disk and that this free end is designed as a telescopic member.
  • the free end after closing the Slide ventilation can not enter directly into its guide slot because the correct mutual association g meantime nutritionalgin, then the slide ventilation can still close completely.
  • the telescopic member is then pressed together and the free end of the telescope jumps into its slot at the moment when the rotary handle has been rotated through the required angle in the correct direction of rotation. From this moment, the fan speed can also be changed again using the rotary handle.
  • Another embodiment of the invention is characterized in that the drive member is mounted on the first housing part and at the same time forms the control member or the control disk or is connected to it in a rotationally fixed manner, the control slot of the link-like control being open at both ends and only by two approaches on the one assigned to the drive member Surface of the control plate is formed.
  • the drive member is mounted on the first housing part and at the same time forms the control member or the control disk or is connected to it in a rotationally fixed manner, the control slot of the link-like control being open at both ends and only by two approaches on the one assigned to the drive member Surface of the control plate is formed.
  • the housing of the slide ventilation cannot be closed, because then the Control pin of the drive member abuts one of the two approaches. Only when you have moved the ventilation slider by the necessary amount of correction, the control pin can step between the two approaches, whereby the correct coupling is made and the valve housing can be closed.
  • the two approaches are one behind the other in the direction of movement of the ventilation slide and they are expediently of the same shape and size. If both are at the same distance from the guides of the ventilation slider, this version is suitable for a construction with a right- and left-handed servomotor. However, if this servomotor has only one direction of rotation, the approaches of the control plate are arranged offset to one another perpendicular to the direction of displacement of the ventilation slide in a further embodiment of the invention.
  • security against incorrect coupling after opening the slide ventilation is guaranteed without any problems, ie any hinged cover that may be present cannot be closed if the control pin strikes one of the two approaches offset perpendicular to the direction of displacement of the ventilation slide.
  • the drive or control element can be driven in an advantageous manner in both of the above-mentioned embodiments by means of an electric servomotor, in particular, the limit switch which can be actuated by the control cam also being a switch for the servomotor.
  • the ventilation housing is designed as a soundproof and / or heat-insulated housing. This not only prevents the ingress of outside noise and the formation of a cold bridge in the cold season, but also the transmission of ventilation noise to the inside and impairment of the fan and fan motor when the outside air is particularly cold.
  • the slide ventilation has a heat and sound-insulated ventilation housing 1, which consists essentially of a fixed housing part 2 with an approximately U-shaped cross section and a movable housing part designed as a cover 3, which is expediently a hinged cover. After an inclined wall 4 forming the flow channel is firmly connected to the cover 3, that is to say it can be folded out, the interior 5 of the ventilation housing is readily accessible for cleaning and inspection purposes when the cover 3 is open.
  • the ventilation slide 6 is slidably mounted in the direction of the double arrow 7.
  • the housing ventilation openings 8 which, according to FIG. 1, have the shape of upright rectangular openings.
  • the ventilation openings 9 of the ventilation slide 6 formed from a number of hole groups 10 arranged next to one another, in particular offset in the longitudinal direction. In the exemplary embodiment there are five such rows.
  • the webs 11 between these ventilation openings of the ventilation slide 6 and the housing or the cover 3 are essentially the same size.
  • the ventilation slide is advantageously constructed from two parts, the larger slide part 12, which extends over almost the entire length of the slide ventilation, being a section of so-called yard goods, ie a starting material that is several meters long.
  • the comparatively short part of the ventilation slide forms a control plate 13 with a control slot 14. At its left end in FIG. 6, it carries a row of pins 15, the size and spacing of the pins being matched to the hole size and the hole spacing of the hole groups 10. In this way, a quick and secure non-positive connection of both slide parts is possible.
  • All embodiments of this slide ventilation are equipped with a blower 16 which is driven by a blower motor, not shown.
  • the speed of the blower motor is also controlled by a potentiometer 20 Sliding contact 21 changeable.
  • a drive member 22 (FIG. 3) or 23 (FIG. 4) is at the same time an adjusting member for the motor speed of the blower motor.
  • the opening width of the slide ventilation is determined, ie it can move the ventilation slide from the fully closed to the fully open position and vice versa.
  • a limit switch 24, which is actuated by a cam 25, is expediently used.
  • the contacts in the limit switch and thus the circuit are open when the cam 25 depresses the plunger 26 of the switch.
  • a control lamp 27 can also be located in the circuit of the blower motor. When it lights up, the blower motor rotates at a speed predetermined by the position of the sliding contact 21.
  • the cam 25 not only switches the circuit for the blower motor, but also that of a servomotor, if the ventilation slide is not moved by hand.
  • the drive member 22 is rotatably mounted on the cover 3. It can be turned by means of a handle, not shown, which is external when the ventilation housing is closed, for example a handle, toggle, handwheel or the like be rotated a predetermined amount.
  • the latter is predetermined by the drive mechanism and is determined so that in one rotational end position the ventilation openings of the housing or cover 3 and the ventilation slide 6 are congruent, while in the other end position they are covered by the webs 11 of the other part.
  • a displacement limitation is advantageously achieved by attaching to the control plate 13, that is to say the short part of the ventilation slide 6, a particularly open-ended displacement limitation slot 28 which extends in the displacement direction 7 of the ventilation slide 6 and which cooperates with a stop bolt (not shown), which is inserted into a corresponding hole in the area of the upper housing guide 29 of the cover 3.
  • a displacement limiting slot 28 is also provided in the embodiment of FIG. 6 at the lower end of the control plate 13.
  • a control pin 30 is shown eccentrically on the drive member 22, the free end of which is designed as a telescopic member 31. It passes through the control slot 14 of the control plate 13 and thus forms a link control 32. With its help, the rotary movement of the drive member 22 can be converted into a displacement movement of the ventilation slide 6.
  • the ventilation slide 6 has assumed the shift position provided for this purpose, the telescopic member 31 engages in a bore 33 in one in particular a control member 34 designed as a control disk. Accordingly, the rotary movement of the handle for the ventilation slide adjustment is transmitted to the control member 34 via the plug coupling consisting of the control pin 30 and the bore 33. Because the sliding contact 21 of the potentiometer 20 is connected in an articulated manner to the control member 34, the adjustment of the ventilation slide 6 also causes a displacement of the potentiometer tap.
  • the telescopic member 31 does not align with the bore 33, the cover can still be closed completely. However, the telescopic member 31 is pressed against the resistance of a spring, not shown, in the control pin 30. If the drive member 22 is subsequently rotated in the correct direction and by the required amount, the telescopic member 31 jumps into the bore 33 due to the spring tension as soon as the two are aligned. In this way, it is always guaranteed that a certain opening position of the slide ventilation is assigned to a predetermined potentiometer tap and thus to a precisely determined speed of the fan.
  • the drive member 23 is mounted and closed on the first or fixed housing part 2 immediately formed as a control member 35. It is driven by an electric servomotor 43 and can sit directly on its drive axis. Its control pin 36, which does not require a telescopic member and therefore does not have one, works together with a control slot 37, which is formed by two cube-like extensions 38 and 39 of the control plate 13 and is therefore open at both ends. This control slot 37 and the control pin 36 also form a link control 40 with which the rotary movement of the control member 35 can be converted into a back and forth movement of the ventilation slide 6. However, as I said, the rotary movement is based on a servomotor of a known type and not directly from the hand of an operator.
  • the two approaches 38 and 39 of FIG. 4 lie exactly parallel to one another and this enables the use of a right-hand and left-hand servomotor 43.
  • the two approaches 41 and 42 5 as shown in Fig. 5 perpendicular to the displacement direction of the ventilation slide 6 against each other.
  • These lugs 41, 42 advantageously have an approximately triangular shape in cross section.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Flow Control Members (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP82106943A 1981-09-01 1982-07-31 Prise d'air à registre coulissant avec un ventilateur actionné par un moteur Expired EP0074486B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82106943T ATE18602T1 (de) 1981-09-01 1982-07-31 Schieberlueftung mit einem motorbetriebenen geblaese.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3134515 1981-09-01
DE3134515A DE3134515C3 (de) 1981-09-01 1981-09-01 Schieberlüftung mit einem motorbetriebenen Gebläse

Publications (2)

Publication Number Publication Date
EP0074486A1 true EP0074486A1 (fr) 1983-03-23
EP0074486B1 EP0074486B1 (fr) 1986-03-12

Family

ID=6140558

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82106943A Expired EP0074486B1 (fr) 1981-09-01 1982-07-31 Prise d'air à registre coulissant avec un ventilateur actionné par un moteur

Country Status (3)

Country Link
EP (1) EP0074486B1 (fr)
AT (1) ATE18602T1 (fr)
DE (1) DE3134515C3 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0114241A3 (en) * 1983-01-22 1985-10-02 Gretsch-Unitas Gmbh Baubeschlage Ventilation device
EP0772009A1 (fr) * 1995-11-03 1997-05-07 Isover Saint-Gobain Gaine de ventilation et panneau isolant utilisé pour son revêtement
FR2740804A1 (fr) * 1995-11-03 1997-05-09 Saint Gobain Isover Gaine de ventilation et panneau isolant utilise pour son revetement interne
BE1015365A5 (nl) * 2003-02-17 2005-02-01 Renson Paul Mechanische ventilatie-eenheid.
CN106642582A (zh) * 2016-12-27 2017-05-10 张四清 一种空调风量控制系统
CN114483622A (zh) * 2022-01-12 2022-05-13 河南省豫冠安全发展有限公司 一种能有效控制风流的矿井通风结构

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3134515C3 (de) * 1981-09-01 1996-06-13 Gretsch Unitas Gmbh Schieberlüftung mit einem motorbetriebenen Gebläse
DE3908511C3 (de) * 1988-03-15 1998-02-12 Maico Elektroapparate Wandlüfter
DE102017217535A1 (de) * 2017-10-02 2019-04-04 Siemens Aktiengesellschaft Belüftungsanlage, System und Verfahren zum Betreiben einer Belüftungsanlage

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB783757A (en) * 1955-02-25 1957-09-25 Daimler Benz Ag Improvements relating to ventilation systems for motor vehicles
FR1344040A (fr) * 1963-01-09 1963-11-22 Dispositif d'aération notamment pour fenêtres ou portes
GB965744A (en) * 1959-07-28 1964-08-06 Colchester Woods Improvements in and relating to ventilating fans
FR1377858A (fr) * 1963-12-20 1964-11-06 Boulton & Paul Ltd Dispositif d'aération
DE2555930B2 (de) * 1975-12-12 1979-12-13 Gretsch-Unitas Gmbh Baubeschlagfabrik, 7257 Ditzingen Schalldämmende Lüftungsvorrichtung
EP0032207A1 (fr) * 1980-01-12 1981-07-22 Gretsch-Unitas GmbH Baubeschlagfabrik Aération réglable à coulisse

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB594165A (en) * 1944-07-12 1947-11-04 Electrolux Ab Improvements in or relating to electrically driven fans
US3363536A (en) * 1966-10-10 1968-01-16 Tempmaster Corp Thermostatic control assembly for air conditioning systems
US3703205A (en) * 1970-05-15 1972-11-21 James A Verden Blower-speed regulator for forced-air heating systems
DE2110861C3 (de) * 1971-03-08 1980-01-10 Gretsch-Unitas Gmbh Baubeschlagfabrik, 7000 Stuttgart Schieberlüftung
DE2725457C2 (de) * 1977-06-04 1983-12-15 Johnson Service Co., Milwaukee, Wis. Verfahren zum Regeln der Luftzufuhr in belüfteten Räumen und Vorrichtung zur Durchführung des Verfahrens
DE2919682A1 (de) * 1979-05-16 1980-11-20 Siegenia Frank Kg Lueftungsvorrichtung fuer den einbau in fenster und/oder in andere wandoeffnungen von gebaeuden
DE3134515C3 (de) * 1981-09-01 1996-06-13 Gretsch Unitas Gmbh Schieberlüftung mit einem motorbetriebenen Gebläse

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB783757A (en) * 1955-02-25 1957-09-25 Daimler Benz Ag Improvements relating to ventilation systems for motor vehicles
GB965744A (en) * 1959-07-28 1964-08-06 Colchester Woods Improvements in and relating to ventilating fans
FR1344040A (fr) * 1963-01-09 1963-11-22 Dispositif d'aération notamment pour fenêtres ou portes
FR1377858A (fr) * 1963-12-20 1964-11-06 Boulton & Paul Ltd Dispositif d'aération
DE2555930B2 (de) * 1975-12-12 1979-12-13 Gretsch-Unitas Gmbh Baubeschlagfabrik, 7257 Ditzingen Schalldämmende Lüftungsvorrichtung
EP0032207A1 (fr) * 1980-01-12 1981-07-22 Gretsch-Unitas GmbH Baubeschlagfabrik Aération réglable à coulisse

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0114241A3 (en) * 1983-01-22 1985-10-02 Gretsch-Unitas Gmbh Baubeschlage Ventilation device
EP0772009A1 (fr) * 1995-11-03 1997-05-07 Isover Saint-Gobain Gaine de ventilation et panneau isolant utilisé pour son revêtement
FR2740804A1 (fr) * 1995-11-03 1997-05-09 Saint Gobain Isover Gaine de ventilation et panneau isolant utilise pour son revetement interne
BE1015365A5 (nl) * 2003-02-17 2005-02-01 Renson Paul Mechanische ventilatie-eenheid.
CN106642582A (zh) * 2016-12-27 2017-05-10 张四清 一种空调风量控制系统
CN114483622A (zh) * 2022-01-12 2022-05-13 河南省豫冠安全发展有限公司 一种能有效控制风流的矿井通风结构
CN114483622B (zh) * 2022-01-12 2023-08-11 河南省豫冠安全发展有限公司 一种能有效控制风流的矿井通风结构

Also Published As

Publication number Publication date
DE3134515A1 (de) 1983-03-17
DE3134515C3 (de) 1996-06-13
DE3134515C2 (fr) 1989-09-14
ATE18602T1 (de) 1986-03-15
EP0074486B1 (fr) 1986-03-12

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