US3680471A - Ventilation regulating device - Google Patents

Ventilation regulating device Download PDF

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Publication number
US3680471A
US3680471A US3680471DA US3680471A US 3680471 A US3680471 A US 3680471A US 3680471D A US3680471D A US 3680471DA US 3680471 A US3680471 A US 3680471A
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US
United States
Prior art keywords
disc
closed
slitted
control valve
vanes
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
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English (en)
Inventor
Douwe Rosendale
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Individual
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Individual
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Filing date
Publication date
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Publication of US3680471A publication Critical patent/US3680471A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F24F13/08—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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/745—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity the air flow rate increasing with an increase of air-current or wind pressure
    • 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
    • F24F13/18—Air-flow control members, e.g. louvres, grilles, flaps or guide plates specially adapted for insertion in flat panels, e.g. in door or window-pane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7781—With separate connected fluid reactor surface
    • Y10T137/7784—Responsive to change in rate of fluid flow
    • Y10T137/7786—Turbine or swinging vane type reactor

Definitions

  • a ventilating device of this type is characterized by a control valve in the form of a circular disc capable of swinging coaxially between end stops in the casing, one half of which disc, extending over approximately 180, is closed, said disc further comprising a plurality of sector-shaped blades, the central portions of which are turned at a slight angle relative to the plane defined by said firstmentioned disc half, the arrangement of said blades being such that their axial projections on the said plane together cover the other disc half at least substantially, there being connected to said disc adjustable means affecting the activity of the thrust of the air passing through the passage on the positions of the control valve.
  • the device readily responds to the pressure differences prevailing on both sides of the annular casing, and is widely adaptable to greatly varying working conditions. Also, in the farthest closed position of the disc, i.e., the position in which all blades of the disc are behind the division plate, as seen in axial direction of the casing, the effect of the thrust of the fluid flow, which in this position is forcedly deflected beyond the division plate in a direction transversely of the axis of the casing, on the blades turns out to be sufiicient for the valve to be retained in that position.
  • the adjustable sealing plate allows of a simple and easy control of the passage in the annular casing according as the circumstances, and can even be used to seal off the passage completely.
  • the helical spring By slightly turning the end of the bearing part extending through the bearing ring of the division plate, the helical spring can be tensioned to a greater or less extent. As a result of the cooperation between the outer end of the helical spring and the bearing part through the intermediary of a stop, the assembly of the helical spring can be realized in a simple manner and the spring can be readily brought to the desired pretension. Besides the helical spring can be easily replaced, if so desired.
  • a fixing spring secured to the division plate is active upon a row of teeth at the circumference of the rotative bearing part for the control valve.
  • the fixing mechanism is almost entirely hidden from sight behind said division plate.
  • control valve may be provided, in this construction or in place of the helical spring mechanism, with a radially adjustable out-of-balance weight and with a track, spaced from the shaft of the control valve, for an outof-balance ball enclosed within said track, and this in particular when uses are concerned in which during operation the shaft is always in a horizontal position.
  • the ball ensures, by virtue of a suitable arrangement of the ball track, that the farthest closed position of the control valve is not a so-called dead center position.
  • control valve may, of course, also be effected by suitably arranged, magnetically operative provisions.
  • a housing in the shape of a ring which on one end is provided with a stationary partition closing approximately half of the passage through such housing and a control member having an open portion and a closed portion and arranged for rotation coaxially with said ring by the side of said partition.
  • control member is manually adjustable, for which frictional forces have to be overcome at the point where the control member is connected with the housing.
  • the stationary partition is of substantially semi-circular shape. To obtain the desired passage area, the substantially semi-circular control member can be swung in full or in part behind the partition.
  • said control member is journalled for free rotation, is provided with inclined blades separated by slits and is connected with means exerting a force on it, the arrangement being such that .the control member as sumes an angular position against the action of said force, depending on air current pressure resulting from overpressure, acting on the blades on one end of the housing, in which position the slitted portion of the control member comes to lie at least partially behind the closed partition portion.
  • the size of the out-of-balance weight can be selected to suit particular cases of use. Instead, it is also possible, with a given minimum out-of-balance weight, to add one or more additional out-of-balance weights.
  • the successive blades of the control member may be disposed in at least substantially overlapping relationship as viewed in axial direction, that is to say, that the projections of the slits between the successive blades, on the plane perpendicular to the axis of rotation, have a width approaching zero value.
  • control member may be subdivided into a plurality of sectors each having an equal number of blades, the successive blades of pairs of opposite sectors being interconnected by imperforate cross-walls, and the blades of the intermediate sectors having the open passage-slits formed between them.
  • the partition over the non-closed half may be constituted by at least one pair of portions extending over diametrically opposite circle sectors and each consisting of a plurality of concentric ring segments oriented at an angle to the axis of the housing.
  • said ring-segments at diametrically opposite positions may be inclined in the same direction.
  • FIG. 1 is a front elevation of the device, as seen from the room;
  • FIG. 2 is a vertical section taken along the line IIII in FIG. 1, with elevational view;
  • FIG. 3 is a rear elevation of the control valve
  • FIG. 4 is a vertical section taken along the line IV- IV in FIG. 3, with elevational view of the control valve;
  • FIG. 5 is a vertical cross-sectional elevation of a ventilator according to the invention.
  • FIG. 6 is a view from the right in FIG. 5 of the control member
  • FIG. 7 is a diagrammatic cross-sectional view on the line VII-VII of FIG. 6;
  • FIG. 8 is a view from the left in FIG. 5 of the housing and showing the partition.
  • the control valve 4 is further provided with a hub 7 which has a shaft 8 extending therethrough and so mounted therein as to be locked against rotation, one end of said shaft being mounted for rotation in a central bearing part of the gridiron 3, the other end in a separate cylindrical bearing part 9 which fits rotatively in a bearing ring 10 formed on the plate 2.
  • a row of teeth 11 formed on the bearing part 9 with which teeth the suitably formed ends of the two legs of an essentially V- shaped spring 12 are in engagement, said spring being attached to the plate 2 adjacent 13.
  • the sealing plate can be rotated from its open position, shown in FIG. 1, into the upper half of the casing, which is cleared by the plate 2, the grooves 15 and 17 functioning as guides for the plate.
  • the head of the bearing part 9, away from the room, has a circular space 22 for accommodating a helical spring 23, the inner winding of which is clamped about the left-hand end, as seen in FIG. 2, of the shaft 8, and the outwardly curved, hooked end of the outer winding abuts against a stop, not shown in the drawings, at the outer circumference of the accommodation 22.
  • a helical spring 23 By rotation of the bearing part 9 by means of the said key, the outer winding of the helical spring, upon assembly, can be positioned against the stop in the accommodating space and tensioned.
  • the pre-tension of the helical spring to be set in this way depends on the local situation and conditions under which the ventilating device must work.
  • control valve 4 will act on the control valve 4 in a rotary sense opposite to a current of air acting on the blades 6 in the direction of the arrow A (FIG. 2), so that said control valve can adjust itself rotatively about its shaft 8 according to the intensity of the air current.
  • a sleeve 24 Projecting from the central bearing part of the gridiron 3 into the casing is a sleeve 24 substantially enclosing the hub 7 and forming an end abutment at 25 for the stops, not shown, on the hub 7 for the two extreme positions of rotation to be occupied by the control valve 4.
  • One of these extreme positions is the position shown in FIG. 1, the other one the position in which the valve has turned through substantially 180 and the blades 6 have arrived behind the plate 2. In this position, too, a strong air current may yet be active on the blades in the direction of the arrow A in FIG. 2, because the air current is curved down over the upper edge of the plate 2.
  • the closed half of the valve is further provided with a vertical slot 27 along which an out-of-balance weight 28 for the control valve can be fixed by a clamping screw 29.
  • a channel-like accommodation track of a cross-sectional shape as shown in FIG. 3, and more clearly in FIG. 4.
  • a ball 31 movable in said track 30 avoids a dead center position of the valve 4.
  • the ventilating device according to this invention is very widely adaptable to all kinds of working conditions greatly varying in each individual case.
  • the embodiment shown relates to the use of the instant device in a suitable opening in a window pane or wall panel 32 (FIG. 2), the attachment being effected by means of a two-part counterframe 34 fixed by screws 33.
  • the device according to this invention may be typically applied to a ventilating system for a building with a vertical shaft, at the top of which a fan is operative, and with horizontal branches in the various stories and rooms.
  • the device according to this invention is further typically used for the self-regulation of the ventilation in vehicles.
  • the ventilator generally designated by reference numeral 36 in FIG. 5, consists essentially of a housing having an annular outer peripheral wall 37, with a partition 38 therein on one end thereof, said partition being integral with the wall 37, a hollow pin 39 extending into the housing from the center of the partition, as well as a control member 40 which, essentially consisting of a plurality of blades 41, has the form of a fan; fixed with a snap connection in a hub 42 on the control member 40 is a loose sleeve 43.
  • This sleeve 43 forms together with a bushing 44, inserted in it in reverse position, a cavity accommodating two series of balls 45 and 46, by means of which the control member is freely rotatable on a ball bushing 47 mounted on the hollow pin 39 formed on the partition.
  • the rotation of the control member is limited to 180, namely, to the left and to the right from the position shown in FIGS. 5, 6 and 8, owing to the dog 48 extending from the sleeve 43 having an abutment against two stops 49 extending from the partition 38 at some distance from the hollow pin, as shown in broken lines in FIGS. 5 and 8.
  • the partition 38 consists of alternating entirely closed circle quadrants 50 and upper and lower quadrants 51, each constituted by a plurality of concentric ring segments inclined outwardly and downwardly and having a cross-sectional configuration as shown in FIG. 8.
  • FIGS. 6 and 7 illustrate the construction of the fanshaped control member: the sector-shaped blades which, relative to the plane perpendicular to the axis XX of the ventilator 36, are inclined about a radius, as shown in FIG. 7, define successive passage slits 52 between them over the quadrants, which in the position of the control member 40 correspond with the ring segment quadrants 51 of the partition 38.
  • the other sector-shaped blades 41 i.e., in the quadrants of the control member corresponding with the closed quadrants of the partition in the position shown, are successively interconnected by imperforate crosswalls 53.
  • the control member assumes a position as shown under the influence of an out-of-balance weight 54 accommodated in a receptacle 55 of the control member, said weight taking the form of a pin which is a clamping fit in receptacle 55. If so desired, this pin 54 may be replaced by a lighter or heavier one, according to the contemplated functioning in the particular case in which the ventilator is used.
  • the device may be mounted in a panel or glass pane by means of a groove formed at the circumference of peripheral wall 37 between circumferential ribs, using a suitable packing of suitable rubber or plastics material.
  • a ventilation regulating device comprising an air passage formed in an annular casing, one half of said passage at one end of the annulus being closed by a division plate extending over approximately the other half being scalable by means of a substantially semi-circular disc-like sealing plate in a transverse plane beside said division plate, said sealing plate being coaxial with said casing and rotatably mounted therein, characterized by a control valve in the form of a circular disc capable of swinging coaxially between end stops in the casing, one half of which disc, extending over approximately 180, is closed, said disc further comprising a plurality of sector-shaped blades, the central portions of which are turned at a slight angle relative to the plane defined by said first-mentioned disc half, the arrangement of said blades being such that their axial projections on the said plane together cover the other disc half at least substantially, there being connected to said disc adjustable means affecting the activity of the thrust of the air passing through the passage on the positions of the control valve.
  • control valve is provided with a radially adjustable out-ofbalance weight and with a track, spaced from the shaft of the control valve, for an out-of-balance ball enclosed within said track.
  • a ventilator comprising a first disc fixable to a wall, a control member including a second disc coaxially rotatably supported by said first disc, said discs each having an axially slitted area and an axially closed surface area, said slitted and closed surface areas forming respective slitted and ,closed sectors circumferentially alternatingly and substantially equally divided, said second disc being rotatable with respect to said first disc between a first position and a second position, in said first position each slitted sector of said second disc being axially substantially coincident with a slitted sector of said first disc, in said second position each slitted sector of said second disc being axially substantially coincident with a closed sector of said first disc, said slitted area of said second disc being provided with spaced inclined vanes extending radially with respect to the axis of rotation, on rotation of said second disc in one direction of rotation the leading radial edges of said vanes moving axially spaced from but close to said first disc
  • a ventilator according to claim 5 characterized in that the successive control member vanes are disposed in at least substantially overlapping relationship as viewed in ax'al direction.
  • a ventilator characterized in that the control member is subdivided into a plurality of sectors each having an equal number of vanes, the successive vanes of pairs of opposite sectors being interconnected by imperforate cross-walls, and the vanes of the intermediate sectors having the open passageslits formed between them.
  • a ventilator characterized in that a partition is provided over the non-closed half which is constituted by at least one pair of portions extending over diametrically opposite circle sectors and each consisting of a plurality of concentric ring segments oriented at an angle to the axis of the housing.
  • a ventilator according to claim 8 characterized in that the ring segments at diametrically opposite positions are inclined in the same direction.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Air-Flow Control Members (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
  • Air-Conditioning For Vehicles (AREA)
US3680471D 1967-12-18 1970-08-28 Ventilation regulating device Expired - Lifetime US3680471A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6717235A NL6717235A (enrdf_load_stackoverflow) 1967-12-18 1967-12-18

Publications (1)

Publication Number Publication Date
US3680471A true US3680471A (en) 1972-08-01

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ID=19802017

Family Applications (1)

Application Number Title Priority Date Filing Date
US3680471D Expired - Lifetime US3680471A (en) 1967-12-18 1970-08-28 Ventilation regulating device

Country Status (9)

Country Link
US (1) US3680471A (enrdf_load_stackoverflow)
JP (1) JPS4821611B1 (enrdf_load_stackoverflow)
AT (1) AT290798B (enrdf_load_stackoverflow)
BE (1) BE725544A (enrdf_load_stackoverflow)
DE (1) DE1813683B2 (enrdf_load_stackoverflow)
FR (1) FR1595234A (enrdf_load_stackoverflow)
GB (1) GB1252150A (enrdf_load_stackoverflow)
IE (1) IE33078B1 (enrdf_load_stackoverflow)
NL (1) NL6717235A (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5664375A (en) * 1994-03-28 1997-09-09 Canplas Industries, Ltd. Exterior building product device
US20060272231A1 (en) * 2005-05-05 2006-12-07 Tapco International Corporation Housing assembly
US20080160896A1 (en) * 2005-06-13 2008-07-03 Stealthdrive, Inc. In-Plane Airflow Circulation Contingency and Control System
US20130299207A1 (en) * 2012-05-10 2013-11-14 Black & Decker, Inc. Power tool cooling
US20140273784A1 (en) * 2013-03-13 2014-09-18 Ford Global Technologies, Llc Air extractor to reduce closing effort

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19954162C1 (de) * 1999-11-10 2001-06-28 Ltg Ag Luftauslass
CN104265138B (zh) * 2014-08-05 2016-01-20 中国北车集团大连机车车辆有限公司 铁路机车通风百叶窗

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6820A (en) * 1849-10-23 Self-adjusting valve for regulating the admission of air to fan-blowers
US917300A (en) * 1908-05-07 1909-04-06 Pittsburg Appliance Company Fluid-pressure controller.
US2911002A (en) * 1955-11-02 1959-11-03 Svenska Flaektfabriken Ab Flow governor
US3556134A (en) * 1967-01-05 1971-01-19 Serva Soc Fluid flow regulator for use in the ventilation ducts of dwellings

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6820A (en) * 1849-10-23 Self-adjusting valve for regulating the admission of air to fan-blowers
US917300A (en) * 1908-05-07 1909-04-06 Pittsburg Appliance Company Fluid-pressure controller.
US2911002A (en) * 1955-11-02 1959-11-03 Svenska Flaektfabriken Ab Flow governor
US3556134A (en) * 1967-01-05 1971-01-19 Serva Soc Fluid flow regulator for use in the ventilation ducts of dwellings

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5664375A (en) * 1994-03-28 1997-09-09 Canplas Industries, Ltd. Exterior building product device
US20060272231A1 (en) * 2005-05-05 2006-12-07 Tapco International Corporation Housing assembly
US7610726B2 (en) * 2005-05-05 2009-11-03 Tapco International Corporation Housing assembly
US20100000166A1 (en) * 2005-05-05 2010-01-07 Tapco International Corporation Housing assembly
US7930858B2 (en) 2005-05-05 2011-04-26 Tapco International Corporation Housing assembly
US8240093B2 (en) 2005-05-05 2012-08-14 Tapco International Corporation Housing assembly
US20080160896A1 (en) * 2005-06-13 2008-07-03 Stealthdrive, Inc. In-Plane Airflow Circulation Contingency and Control System
US8066559B2 (en) * 2005-06-13 2011-11-29 Stealthdrive, Inc. In-plane airflow circulation contingency and control system
US20130299207A1 (en) * 2012-05-10 2013-11-14 Black & Decker, Inc. Power tool cooling
US20140273784A1 (en) * 2013-03-13 2014-09-18 Ford Global Technologies, Llc Air extractor to reduce closing effort

Also Published As

Publication number Publication date
NL6717235A (enrdf_load_stackoverflow) 1969-06-20
BE725544A (enrdf_load_stackoverflow) 1969-05-29
IE33078B1 (en) 1974-03-20
GB1252150A (enrdf_load_stackoverflow) 1971-11-03
DE1813683B2 (de) 1972-11-30
AT290798B (de) 1971-06-25
FR1595234A (enrdf_load_stackoverflow) 1970-06-08
DE1813683A1 (de) 1970-04-02
IE33078L (en) 1969-06-18
JPS4821611B1 (enrdf_load_stackoverflow) 1973-06-29

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