DE1264190B - Shut-off device for round or square air or smoke gas ducts - Google Patents
Shut-off device for round or square air or smoke gas ductsInfo
- Publication number
- DE1264190B DE1264190B DE1962M0054349 DEM0054349A DE1264190B DE 1264190 B DE1264190 B DE 1264190B DE 1962M0054349 DE1962M0054349 DE 1962M0054349 DE M0054349 A DEM0054349 A DE M0054349A DE 1264190 B DE1264190 B DE 1264190B
- Authority
- DE
- Germany
- Prior art keywords
- sealing
- shut
- flap
- sealing strip
- round
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/20—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/20—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member
- F16K1/2007—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member specially adapted operating means therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/20—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member
- F16K1/2021—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member with a plurality of valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/20—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member
- F16K1/2028—Details of bearings for the axis of rotation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/20—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member
- F16K1/2042—Special features or arrangements of the sealing
- F16K1/2057—Special features or arrangements of the sealing the sealing being arranged on the valve seat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L13/00—Construction of valves or dampers for controlling air supply or draught
Description
Absperrvorrichtung für runde oder eckige Luft- oder Rauchgaskanäle Die Erfindung bezieht sich auf eine Absperrvorrichtung für runde oder eckige Luft- oder Rauchgaskanäle, bestehend aus zwei gleichgestalteten, mit ihren Rändern die Abdichtflächen bildenden, über eine Traverse miteinander verbundenen Klappenflügeln, einer umlaufenden Dichtleiste und einem mittigen Abdichtsteg.Shut-off device for round or square air or smoke gas ducts The invention relates to a shut-off device for round or angular air or flue gas ducts, consisting of two identically shaped, with their edges the Flap blades that form sealing surfaces and are connected to one another via a cross-member, a circumferential sealing strip and a central sealing web.
Absperrklappen, deren Betätigungswelle sich in der Ebene der an der Wand des abzudichtenden Kanals befindlichen Abdichtleisten bzw. eines dort gelegenen Dichtsitzes befindet, sind an den Lagerstellen der Welle nur unter großem baulichen Aufwand und dann auch nur in unzureichender Weise dicht zu bekommen. Bei Kanälen kleineren und runden Durchtrittsquerschnittes wurde bisher die Klappenwelle unsymmetrisch zum Kanaldurchgang und außermittig der Klappenebene angeordnet und die Absperrklappe selbst aus einer durchgehenden Platte gefertigt, wobei der Abdichtstreifen ohne Schwierigkeiten längs des Umfanges der Innenwandung des abzudichtenden Kanals in durchgehender Erstreckung verlegt und eine sichere Abdichtung erzielt werden konnte. Solche Absperrvorrichtungen sind aber bei Luft- und Rauchgas-Abzugskanälen großer Abmessung insofern nicht anwendbar, als sich die aus einem durchgehenden Blech od. dgl. gefertigten Klappen wegen ihres großen Ausmaßes infolge der feuerraumseitig einwirkenden beträchtlichen Wärme leicht verziehen und somit eine sichere Abdichtung in Frage gestellt ist.Butterfly valves whose actuating shaft is in the plane of the Wall of the channel to be sealed located sealing strips or one located there Sealing seat is located, are at the bearing points of the shaft only under great structural Effort and then only insufficiently to get tight. With channels Smaller and round passage cross-section so far the valve shaft has been asymmetrical to the duct passage and off-center of the flap plane and the butterfly valve itself made from a continuous plate, with the sealing strip without Difficulties along the circumference of the inner wall of the channel to be sealed in continuous extension and a secure seal could be achieved. Such shut-off devices are, however, larger in the case of air and flue gas exhaust ducts Dimension not applicable insofar as the od from a continuous sheet. Like. Manufactured flaps because of their large size as a result of the firebox side The considerable heat acting on it is easily warped and thus a secure seal is in question.
Es sind ferner Klappenventile bekannt, bei denen in einem gemeinsamen Gehäuse gleichzeitig bewegbare, gleichgestaltete, mit ihren Rändern den Durchflußquerschnitt abdichtende Klappflügel vorgesehen sind, wobei die Sitzflächen aus in einer Ebene liegenden, an der Gehäuseinnenwand verlaufende Dichtleisten und einem mittig dazwischen angeordneten Abdichtsteg bestehen. Hierbei sind die beiden Klappenflügel über eine gemeinsame, auf der Klappenwelle gelagerte Traverse miteinander verbunden. Eine einwandfreie Abdichtung kann aber mit diesen Absperrorganen insofern nicht erzielt werden, als keine verschiebbaren bzw. verstellbaren Dichtsitze vorhanden sind.There are also flap valves known in which in a common Housing simultaneously movable, identically designed, with their edges the flow cross-section sealing folding wings are provided, the seat surfaces in one plane lying sealing strips running on the inside wall of the housing and one in the middle between them arranged sealing web exist. Here are the two flap wings over one common traverse mounted on the valve shaft connected to one another. One However, perfect sealing cannot be achieved with these shut-off devices when there are no displaceable or adjustable sealing seats.
Bei einer anderen bekannten Flügelklappe sind die Flügel aus einem durchgehenden, mittig gelagerten Bauteil gefertigt, was wiederum den Nachteil des leichten Verziehens durch Wärmeeinwirkung in sich schließt und die einwandfreie Abdichtung in den Sitzen insbesondere deshalb in Frage stellt, weil keinerlei Nachstelleinrichtungen zur Behebung dieses Mangels vorgesehen sind. Der Anmeldung liegt daher die Aufgabe zugrunde, eine Absperrklappe der eingangs genannten Art so auszubilden, daß eine ausreichende Abdichtung in der Schließstellung gewährleistet und eine Einrichtung zum Nachstellen der Dichtungen bei Verzug der Klappenflügel vorhanden ist.In another known butterfly valve, the wings are made of one continuous, centrally mounted component, which in turn has the disadvantage of slight warping due to the action of heat includes and the flawless Sealing in the seats is in particular questionable because there are no adjustment devices are intended to remedy this defect. Registration is therefore the task based on a butterfly valve of the type mentioned in such a way that a Sufficient sealing in the closed position ensured and a facility is available for readjusting the seals if the damper blades are warped.
Diese Aufgabe wird nach der Erfindung dadurch gelöst, daß zur Gewährleistung eines stets einwandfreien Dichtsitzes sowohl die umlaufende Dichtleiste in radialer Richtung verschiebbar ist, als auch die Dichtflächen jedes Klappenflügels gegenüber der umlaufenden Dichtleiste und der Dichtleiste des Abdichtsteges in axialer Durchtrittsrichtung des strömenden Mediums verstellbar ausgebildet sind.This object is achieved according to the invention in that to ensure an always perfect sealing seat as well as the circumferential sealing strip in a radial direction Direction is displaceable, as well as the sealing surfaces of each flap wing opposite the circumferential sealing strip and the sealing strip of the sealing web in the axial direction of passage of the flowing medium are adjustable.
In weiterer Ausgestaltung der Erfindung wird die Verstellung der Klappenflügel in Durchgangsrichtung der Feuergase durch eine in der Traverse vorgesehene Langlochaussparung im Zusammenwirken mit Justierschrauben herbeigeführt. Erfindungsgemäß ist ferner die sich im wesentlichen senkrecht zur Kanalwand erstreckende umlaufende Dichtleiste in dieser Erstreckung durch Langlochbohrungen in Richtung auf die Auflauf- und Abdichtflächen der Klappenflügel verschiebbar ausgebildet.In a further embodiment of the invention, the adjustment of the flap wings in the direction of passage of the fire gases through an elongated hole recess provided in the cross member brought about in cooperation with adjusting screws. According to the invention is also the circumferential sealing strip extending essentially perpendicular to the duct wall in this extension through elongated holes in the direction of the run-up and sealing surfaces the flap wing is designed to be displaceable.
Durch die erfindungsgemäße beidseitige Verstellung, d. h. die Nachstellbarkeit des Dichtsitzes, was also nunmehr durch die nach je einer Richtung hin durchführbare Verschiebbarkeit der Klappenflügel einerseits und der umlaufenden Dichtleiste andererseits ermöglicht ist, ist eine langandauernde Abdichtung selbst bei Nachlassen der einen oder der anderen Abdichtfläche gesichert, da dann die Abdichtwirkung der anderen Abdichtfläche immer noch in Kraft gesetzt werden kann. Dies gilt insbesondere für die Absperrung von Rauchgaskanälen, weil die in diesen geführten Medien oft grobstückige Bestandteile mit sich führen, die sich leicht im Dichtsitz festklemmen und nur durch Nachstellen aus einer anderen Verschieberichtung aus der störenden Lage herausgebracht werden können. Auch ist eine einseitige Abnutzung des Dichtsitzes durch Nachstellbarkeit, d. h. Heranschieben der anderen Dichtfläche in einfacher Weise auszugleichen, so daß die Absperrvorrichtung auch weiterhin ihre Betriebssicherheit erfüllt und bei derartigen Störungen das Auswechseln der gesamten Abdichtorgane noch teerausgezögert werden kann.The inventive bilateral adjustment, d. H. the adjustability of the sealing seat, which is now feasible through the one-way direction Displaceability of the flap wings on the one hand and the circumferential sealing strip on the other is made possible, is a long-lasting seal even when one of them subsides Or the other sealing surface secured, since then the sealing effect of the other Sealing surface can still be put into effect. This is especially true for the shut-off of flue gas ducts, because the media carried in them are often coarse Carry components with them that easily get stuck in the sealing seat and only through Adjustment brought out of the disruptive position from a different displacement direction can be. One-sided wear of the sealing seat due to adjustability is also possible, d. H. To compensate for pushing the other sealing surface in a simple manner, see above that the shut-off device continues to meet its operational safety and at Such faults delayed the replacement of the entire sealing elements can be.
In der Zeichnung ist die Erfindung beispielsweise und in schematischen Darstellungen veranschaulicht, und zwar zeigt F i g. 1 einen Querschnitt durch die neue Vorrichtung in Schließstellung und F i g. 2 eine Draufsicht gemäß F i g. 1, während F i g. 3 in verkleinerter und vereinfachter Darstellung die geöffnete Absperrvorrichtung veranschaulicht.In the drawing, the invention is exemplified and in schematic Illustrations illustrated, namely, FIG. 1 shows a cross section through the new device in the closed position and F i g. 2 is a plan view according to FIG. 1, while F i g. 3 shows the opened shut-off device in a reduced and simplified representation illustrated.
In den F i g. 1 bis 3 ist mit 1 die Wand eines abzusperrenden Luft- oder Rauchgaskanals benannt, in welchen in zweckmäßiger und an sich bekannter Weise mittels Flansche ein Gehäuse 2 eingebaut ist, das den Mechanismus der Absperrvorrichtung aufnimmt. Diese' Vorrichtung besteht aus einer oder mehreren Traversen 3, die um die asymmetrisch zum Dichtsitz und zur Dichtebene liegende Welle 4 zur Betätigung der Absperrklappen schwenkbar und im Gehäuse 2 gelagert ist. Auf den Klappenflügeln 5 und 6, deren Ränder als Auflauf- und Abdichtflächen 7, 8 ausgebildet sind, sind paarweise Lagerböcke 9 angeordnet. Zwischen je zwei Lagerböcken 9 eines Klappenflügels 5 bzw. 6 greift ein Arm der Traverse 3, deren jeder Arm eine Langlochaussparung 10 aufweist, durch das ein Bolzen 11 geführt ist, der in je zwei benachbarten Lagerböcken 9 gelagert ist, und durch eine durch den Klappenflügel5 bzw. 6 hindurchgeführte Stellschraube 12 in seiner Lage festgehalten werden kann. Zu beiden Seiten dieser Stellschraube 12 jeder Lagerbockeinheit befindet sich je eine Justierschraube 13, 14, so daß nach deren Verstellung eine Ausrichtung der Klappenflügel5 , bzw. 6 zu dem Dichtsitz der Absperrvorrichtung vorgenommen werden kann.In the F i g. 1 to 3 is denoted by 1, the wall of an air or smoke gas duct to be shut off, in which a housing 2 is installed in an expedient and known manner by means of flanges, which houses the mechanism of the shut-off device. This' device consists of one or more cross members 3, which can be pivoted about the shaft 4, which is asymmetrical to the sealing seat and to the sealing plane, for actuating the shut-off flaps and is mounted in the housing 2. Bearing blocks 9 are arranged in pairs on the flap wings 5 and 6, the edges of which are designed as run-up and sealing surfaces 7, 8. An arm of the traverse 3, each arm of which has an elongated hole recess 10 through which a bolt 11 is guided, which is supported in two adjacent bearing blocks 9, and one through the flap wing 5, engages between two bearing blocks 9 of a flap wing 5 or 6 or 6 passed through adjusting screw 12 can be held in its position. On both sides of this adjusting screw 12 of each bearing block unit there is an adjusting screw 13, 14, so that after they have been adjusted, the flap wings 5 and 6 can be aligned with the sealing seat of the shut-off device.
Zwischen dem Gehäuse 2 und einem weiteren Flansch 15, der mit der Kanalwand 1 durch Schweißen oder anderweitig verbunden sein kann, befindet ; sich die Dichtleiste 16, deren Verstellung mittels einer Langlochbohrung 17 für jede Kanalwandseite für den Fall möglich ist, daß jede dieser Dichtleisten ein Bauteil darstellt und die Dichtleisten sich an den Kanalecken überlappen.Between the housing 2 and another flange 15, which is connected to the Channel wall 1 can be connected by welding or otherwise, is located; themselves the sealing strip 16, whose adjustment by means of an elongated hole 17 for each Channel wall side is possible in the event that each of these sealing strips is a component represents and the sealing strips overlap at the duct corners.
Mittels eines in der Kanalmitte angeordneten Abdichtsteges 18 ist erfindungsgemäß eine weitere Dichtleiste 19 vorgesehen, die sich senkrecht zum Durchtritt des abzusperrenden Mediums, und zwar nach beiden Seiten in Richtung auf die einander gegenüberliegenden Auflauf- und Abdichtflächen der Klappenflügel 5 und 6 erstreckt und in der Ebene der umlaufenden Dichtleisten liegt.By means of a sealing web 18 arranged in the middle of the channel according to the invention a further sealing strip 19 is provided which is perpendicular to the passage of the medium to be shut off, namely on both sides in the direction of each other opposite run-up and sealing surfaces of the flap wings 5 and 6 extends and lies in the plane of the circumferential sealing strips.
Je nach der Größe des Kanaldurchtrittsquerschnittes können die Klappenflügel5 und 6 je ein Paar Lagerböcke 9 oder sogar zwei Lagerbockpaare aufweisen.Depending on the size of the passage cross section, the flap wings5 and 6 each have a pair of bearing blocks 9 or even two pairs of bearing blocks.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1962M0054349 DE1264190B (en) | 1962-09-29 | 1962-09-29 | Shut-off device for round or square air or smoke gas ducts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1962M0054349 DE1264190B (en) | 1962-09-29 | 1962-09-29 | Shut-off device for round or square air or smoke gas ducts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1264190B true DE1264190B (en) | 1968-03-21 |
Family
ID=7307990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1962M0054349 Pending DE1264190B (en) | 1962-09-29 | 1962-09-29 | Shut-off device for round or square air or smoke gas ducts |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1264190B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2813776A1 (en) * | 1978-03-30 | 1979-10-04 | Piller Kg Anton | FLAP VALVE |
| FR2424456A1 (en) * | 1978-04-24 | 1979-11-23 | Sulzer Ag | TRAFFIC INTERRUPTION BODY IN A CANAL |
| EP0111576A1 (en) * | 1982-12-16 | 1984-06-27 | RAS Rohrleitungs-, Apparate- und Stahlbaugesellschaft mbH & Co. KG | Cut-off valve for hot gas, in particular flue gas |
| EP2749761A1 (en) * | 2012-12-28 | 2014-07-02 | Volkswagen Aktiengesellschaft | Valve in a fluid line of a combustion engine for adjusting a fluid mass flow and combustion engine |
| WO2021108915A1 (en) * | 2019-12-04 | 2021-06-10 | Stormwell Inc. | Rotary valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE63912C (en) * | J. PlLET in Lüttich, Belgien, Nr. 27 Rue Nysten | Twin valves | ||
| US2496635A (en) * | 1944-02-09 | 1950-02-07 | Arthur L Ocheltree | Valve construction and control |
| US2946554A (en) * | 1956-06-13 | 1960-07-26 | Desomatic Products Inc | Butterfly valve |
| US3030069A (en) * | 1961-02-03 | 1962-04-17 | Firewel Company Inc | High pressure butterfly valve |
-
1962
- 1962-09-29 DE DE1962M0054349 patent/DE1264190B/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE63912C (en) * | J. PlLET in Lüttich, Belgien, Nr. 27 Rue Nysten | Twin valves | ||
| US2496635A (en) * | 1944-02-09 | 1950-02-07 | Arthur L Ocheltree | Valve construction and control |
| US2946554A (en) * | 1956-06-13 | 1960-07-26 | Desomatic Products Inc | Butterfly valve |
| US3030069A (en) * | 1961-02-03 | 1962-04-17 | Firewel Company Inc | High pressure butterfly valve |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2813776A1 (en) * | 1978-03-30 | 1979-10-04 | Piller Kg Anton | FLAP VALVE |
| FR2424456A1 (en) * | 1978-04-24 | 1979-11-23 | Sulzer Ag | TRAFFIC INTERRUPTION BODY IN A CANAL |
| EP0111576A1 (en) * | 1982-12-16 | 1984-06-27 | RAS Rohrleitungs-, Apparate- und Stahlbaugesellschaft mbH & Co. KG | Cut-off valve for hot gas, in particular flue gas |
| EP2749761A1 (en) * | 2012-12-28 | 2014-07-02 | Volkswagen Aktiengesellschaft | Valve in a fluid line of a combustion engine for adjusting a fluid mass flow and combustion engine |
| DE102012025367A1 (en) * | 2012-12-28 | 2014-07-03 | Volkswagen Ag | Valve for adjusting a fluid mass flow |
| WO2021108915A1 (en) * | 2019-12-04 | 2021-06-10 | Stormwell Inc. | Rotary valve |
| EP4070001A4 (en) * | 2019-12-04 | 2023-12-13 | Stormwell Inc. | Rotary valve |
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