TR2021016517A2 - DUAL ECCENTRIC BUTTERFLY VALVE WITH STEP SHAFT CONSTRUCTION - Google Patents
DUAL ECCENTRIC BUTTERFLY VALVE WITH STEP SHAFT CONSTRUCTIONInfo
- Publication number
- TR2021016517A2 TR2021016517A2 TR2021/016517A TR2021016517A TR2021016517A2 TR 2021016517 A2 TR2021016517 A2 TR 2021016517A2 TR 2021/016517 A TR2021/016517 A TR 2021/016517A TR 2021016517 A TR2021016517 A TR 2021016517A TR 2021016517 A2 TR2021016517 A2 TR 2021016517A2
- Authority
- TR
- Turkey
- Prior art keywords
- butterfly valve
- shaft
- flow
- stepped
- eccentric butterfly
- Prior art date
Links
- 238000010276 construction Methods 0.000 title description 3
- 230000009977 dual effect Effects 0.000 title description 2
- 239000012530 fluid Substances 0.000 claims abstract description 16
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract description 3
- 230000004584 weight gain Effects 0.000 abstract description 2
- 235000019786 weight gain Nutrition 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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
- F16K1/22—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 crossing the valve member, e.g. butterfly valves
- F16K1/224—Details of bearings for the axis of rotation
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
Buluş, sıvı ve gaz boru hatlarında kullanılarak akışkan kontrolü ve ağırlık kazancı sağlayan aynı zamanda akışkana karşı direnci azaltılmış çift eksantrik kelebek vana mil yapısı ile ilgilidir.The invention relates to the double eccentric butterfly valve shaft structure, which provides fluid control and weight gain by using it in liquid and gas pipelines, as well as reduced resistance to fluid.
Description
TARIFNAME KADEMELI MIL YAPISINA SAHIP ÇIFT EKSANTRIK KELEBEK VANA Teknik Alan Bulus, sivi ve gaz, boru hatlarinda kullanilarak akiskan kontrolü ve agirlik kazanci saglayan ayni zamanda akiskana karsi direnci azaltilmis çift eksantrik kelebek vana mil yapisi ile ilgilidir. Önceki Teknik Kelebek vanalar; merkezinden veya eksantrik olarak yataklanmis düz bir klapenin, 90° döndürülmesi ile hatta akisi kesip açan akiskanlarin kontrolünü saglayan vanalardir. El çarki, elektrik, hidrolik veya pnömatik aktüatör olarak farkli tahrik sistemlerine sahiptirler. Hafif olmalari, montaj boylarinin kisaligi, akiskanin nispeten serbest/rahat geçisini saglamalari gibi avantajlarindan dolayi kelebek vanalar sektörde siklikla tercih edilir. Kelebek vana gövde yataklarinda bulunan mil ve bu mil sayesinde açisi ayarlanabilen klape, vananin akisi sinirlayan veya engelleyen hareket eden bilesenleri olmaktadir. Klape, kelebek vana miline sabitlenerek gövde içerisinden çikmasi engellenmekte ve bulundugu konumda çalismasi saglanmaktadir. Mevcut teknikte yer alan klape yapisindan dolayi, akis düzgün bir hiz dagilimi ve sabit bir ivme ile hareket etmemektedir. Dolayisiyla akista vorteksler meydana gelmekte ve akis hattinda titresime yol açmaktadir. Bu durumda ortaya çikan vorteksler klapede ve milde hasar riski yaratmakta ve düzensiz akisa sebep olmaktadir. DESCRIPTION DUAL ECCENTRIC BUTTERFLY VALVE WITH STEP SHAFT CONSTRUCTION Technical Area Fluid control and weight gain using the invention in liquid and gas pipelines Double eccentric butterfly valve with reduced resistance against fluid at the same time providing It's about the shaft structure. Prior Art butterfly valves; a flat plug that is seated centrally or eccentrically, It provides the control of the fluids that cut and open the flow on the line with its 90° rotation. are valves. Different drive as handwheel, electric, hydraulic or pneumatic actuator have systems. They are light, their installation length is short, the fluid butterfly due to their advantages such as providing a relatively free / comfortable passage valves are often preferred in the sector. The shaft in the butterfly valve body bearings and thanks to this shaft, the valve whose angle can be adjusted, restricts the flow of the valve or There are moving components that prevent it. Clapper to butterfly valve stem it is fixed and prevented from coming out of the body and work is provided. Due to the flap structure in the current technique, the flow It does not move with a uniform velocity distribution and a constant acceleration. Therefore Vortices occur in the flow and cause vibration in the flow line. This In this case, the resulting vortices create a risk of damage to the clapper and shaft, and causes irregular flow.
Mevcut teknikte, klape mil yataklarina yerlestirilen miller, klape formunda bir çikinti olusturmaktadir. Kelebek vana akis hatti içerisinde karsilikli yer alan bu mil yatak çikintilarinin bulundugu bölgelerde, vana akis kesit alani daralmaktadir. In the current art, the shafts placed in the damper shaft bearings are made of a disc in the form of a disc. creates a protrusion. This shaft is located opposite each other in the butterfly valve flow line. In areas with bearing protrusions, the valve flow cross-sectional area is narrowed.
Kelebek vanalarda bulunan gövde yataklari millerin akiskan basincina karsi hasar almasini önlemekte ve hidrodinamik klapeyi yerinde tutmasini saglamaktadir. Akis ve akiskan basinci nedeniyle olusan tüm kuvvetler miller araciligiyla gövde yataklarina iletilmektedir. Body bearings in butterfly valves are damaged by the fluid pressure of the shafts. It prevents it from getting stuck and keeps the hydrodynamic flap in place. Flow and all forces due to fluid pressure through the shaft transmitted to their beds.
Tüm bunlarla beraber, mevcut tekniklerde klape formlarinda yapilan gelistirmelerde mil yapilari klape çikintilari içinde tek boyutlu olarak tercih edilmistir. Önceki tekniklerde kullanilan millerin sebep oldugu klape çikintilari, akis kesit alanini küçülterek yüksek basinç kayip degerlerine neden olmaktadir. Mevcut teknikler arastirilarak akis katsayisi ile akis direnci degerlerinin karsilastirilmasi yapilmistir. In addition to all these, in the current techniques, the flaps made in the form of In developments, the shaft structures are preferred as one-dimensional within the valve protrusions. has been made. Bucket protrusions caused by shafts used in previous techniques, flow It causes high pressure loss values by reducing the cross-sectional area. Available Comparing the flow coefficient and flow resistance values by researching the techniques has been made.
Sonuç olarak yeni bir mil yapisinin, mevcut teknikte var olan klape formunu gelistirebilecegi ve yukarida belirtilen problemlerin çözümüne katki saglayabilecegi öngörülmüstür. Mevcut mil yapilarinin yetersizligi, ilgili teknik alanda bir Ar-Ge çalismasi yapilmasini zorunlu kilmistir. As a result, a new shaft structure replaces the flap form existing in the current art. can develop and contribute to the solution of the above-mentioned problems. is foreseen. The inadequacy of the existing shaft structures led to an R&D in the relevant technical field. made it necessary to do the work.
Bulusun Amaci Bulus, yukarida bahsedilen problemlerin hepsini ayni anda çözmekte olup, vana teknolojilerinde gelistirilebilecek alanlarin kisitli olmasi sebebiyle, klape mil yatagini küçültmek amaciyla mil yapisini degistirip, çapi klapenin merkezine dogru giderek azalan mil yapisi gelistirerek yenilikçi bir bakis olmaktadir. Purpose of the Invention The invention solves all of the above-mentioned problems at the same time, and the valve Due to the limited areas that can be developed in technology, the damper shaft change the shaft structure in order to reduce the bearing and move the diameter towards the center of the disc. It takes an innovative view by developing a gradually decreasing shaft structure.
Bulus amaci, mevcut kelebek vanalarda kullanilan mil yapisindan dolayi olusan klape çikintilarinin küçültülmesi ve akis alaninin arttirilmasi ile ilgili olmaktadir. The aim of the invention is the shaft structure used in the existing butterfly valves. It is related to reducing the valve protrusions and increasing the flow area.
Bulusun Detayli Açiklamasi Bulus konusu çift eksantrik kelebek vana sistemine ait sekiller asagidaki gibidir; Sekil - 1 Çift Eksantrik Kelebek Vana Kapali Izometrik Genel Görünüsü Sekil - 2 Çift Eksantrik Kelebek Vana Açik Izometrik Kismi Kesit Görünüsü Sekil - 3 Çift Eksantrik Kelebek Vana Akis Kesiti Görünüsü Sekil - 4 Çift Eksantrik Kelebek Vana Izometrik Kesit Görünüsü Sekil - 5 Çift Eksantrik Kelebek Vana Kesit Detay Görünüsü Sekil - 6 Çift Eksantrik Kelebek Vanada Yataklarin Kesit Görünüsü Sekil- 7 Sizdirmazlik Lastigi Ve Baski Çemberinin Yakin Izometrik Kesit Görünüsü Sekil - 8 Kademeli Mil Yapisi Görünüsü Referans Numaralari: . Çift Eksantrik Kelebek Vana .Hidrodinamik Klape . Kademeli Mil . Yataklar .Sizdirmazlik Lastigi . Baski Çemberi Sekil- 3' de çapi, klapenin merkezine dogru giderek azalan bulus konusu mil yapisi görünmektedir. Asagida detayli anlatimi verilen bahsedilen mil yapisinin kademeli mil (3) olarak anlatimi yapilmaktadir. (Sekil - 8) Sekil - 1' de sivi ve gaz boru hatlarinda kullanilan ve akiskan kontrolünü saglayan kelebek vana (1) görülmektedir. Kelebek vana (1) en genel haliyle; gövde (2), klape (3) ve millerden (4) meydana gelmektedir. Yeni teknik mil tasariminda, geleneksel kelebek vanalarda bulunan ve akisi olumsuz yönde etkileyen klape çikintilarinin etkilerini minimuma indirmek için, en az iki kademe içeren mil yapisi gelistirilmistir. Bu gelistirme neticesinde, ayni mukavemet kriterleri saglanarak kademeli mil yapisi sayesinde klape çikintilari küçültülmüstür. Bahsedilen hidrodinamik klapenin (3), gövde (2) içindeki konumu Sekil - 3 ve Sekil - 5' te görülen kademeli miller (4) araciligi ile saglanmaktadir. Bu sayede hidrodimaik klape (3) bulundugu konumda gövde içinde fonksiyonel hareketlerine uygun bir sekilde çalismaktadir. Bahsedilen kademeli miller (4) büyükten baslayarak çapi git gide küçülen en az bir kademe içermektedir. Kademeli millerin (4) özel kademeli yapisi sayesinde klapenin çikinti yüksekligi azaltilarak hidrodinamik özelligi gelistirilen hidrodinamik klape (3) akisa minimum direnç göstermekte olup, akis etkinligini artirmaktadir. Böylece kademeli mil (4) ve hidrodinamik klape (3) uyumu sayesinde parçalarin birlestigi bölgenin yüksekligi azaltilmis olup, bulusumuz akis katsayisini olumlu yönde gelistirmektedir. Detailed Description of the Invention The figures of the double eccentric butterfly valve system, which is the subject of the invention, are as follows; Figure - 1 Pair of Eccentric Butterfly Valve Closed Isometric General View Figure - 2 Double Eccentric Butterfly Valve Open Isometric Partial Section View Figure - 3 Pair Eccentric Butterfly Valve Flow Section View Figure - 4 Double Eccentric Butterfly Valve Isometric Section View Figure - 5 Double Eccentric Butterfly Valve Section Detail View Figure - Sectional View of Seats in 6 Double Eccentric Butterfly Valves Figure- 7 Close Isometric Section View of the Sealing Rubber and Pressure Circle Figure - 8 Step Shaft Structure View Reference Numbers: . Double Eccentric Butterfly Valve .Hydrodynamic Valve . Stepped Spindle . Beds .Sealing Rubber . Pressure Circle In Figure 3, the inventive shaft structure, the diameter of which decreases gradually towards the center of the damper. it seems. The gradual structure of the mentioned shaft structure, which is detailed below, It is explained as shaft (3). (Figure - 8) Figure - 1 is used in liquid and gas pipelines and provides fluid control. butterfly valve (1) is shown. Butterfly valve (1) in its most general form; body (2), consists of flap (3) and shafts (4). In the new technical shaft design, flap in conventional butterfly valves that adversely affects the flow Shaft construction with at least two stages to minimize the effects of protrusions developed. As a result of this development, by providing the same strength criteria, Thanks to the stepped shaft structure, the valve protrusions are reduced. Said The position of the hydrodynamic flap (3) inside the body (2) is shown in Figure - 3 and Figure - 5 It is provided by the stepped shafts (4) shown. In this way, hydrodimaic The flap (3) is in a position suitable for its functional movements in the body. it works in a way. The mentioned stepped shafts (4) go in diameter starting from the larger contains at least one tier that gets smaller and smaller. Special stepped shafts (4) Thanks to its structure, the damper's protrusion height is reduced and its hydrodynamic feature The developed hydrodynamic damper (3) shows minimum resistance to flow and the flow increases its effectiveness. Thus, the stepped shaft (4) and the hydrodynamic flap (3) Thanks to its harmony, the height of the area where the parts meet has been reduced, Our invention improves the flow coefficient positively.
Yapilan hesaplamali akiskanlar dinamigi analiz sonuçlari neticesinde bahsi geçen, kademeli mil (4) ve hidrodinamik klape (3) sayesinde akis katsayisinin olumlu yönde gelistirildigi görülmüstür. DN 1000 ve DN 200 çaplari için 3 boyutlu modellemeleri yapilan, hidrodinamik klape (3) ve kademeli millerin (4) hesaplamali akiskanlar dinamigi analizleri sonucunda, akis katsayisi Kv degerlerinde DN 1000 için %80 ve üzeri, DN 200 için %95 ve üzeri iyilestirme oldugu hesaplanmistir. Bu analiz sonuçlarinin, mevcut kelebek vanalarda ölçülen akis katsayisi degerlerini geçerek en yüksek akis katsayisi degerlerine ulastigi tespit edilmistir. As a result of the computational fluid dynamics analysis results, positive flow coefficient thanks to the stepped shaft (4) and the hydrodynamic damper (3). was seen to be developed in this direction. 3D for DN 1000 and DN 200 diameters calculations of the hydrodynamic damper (3) and stepped shafts (4) for which As a result of the fluid dynamics analysis, the flow coefficient Kv values are DN 1000. It has been calculated that there is an improvement of 80% and above for DN 200 and 95% and above for DN 200. This The analysis results show the flow coefficient values measured in the existing butterfly valves. It has been determined that it reaches the highest flow coefficient values.
Sekil- 2' de görülen kademeli mil (4) yapisina sahip çift eksantrik kelebek vanada, kademeli millerin (4) ve baski çemberinin (7) genel konumu görülmektedir. In double eccentric butterfly valve with stepped shaft (4) structure seen in Figure-2, The general position of the stepped shafts (4) and the compression ring (7) is shown.
Bahsedilen baski çemberi (7), gövdenin (2) iç kesiminde klape üzerinde konumlandirilmistir. Sekil- 2 ' de görülen hidrodinamik klape (3), bahsedilen vana gövdesinin (2) ortasina, kademeli miller (4) sayesinde konumlandirilmaktadir. Said pressure circle (7) is located on the flap in the inner part of the body (2). is positioned. The hydrodynamic flap (3) seen in Figure-2, the said valve It is positioned in the middle of its body (2) by means of stepped shafts (4).
Kelebek vana sistemi içerisine yerlestirilmis kademeli miller (4), akisi sinirlama ya da engelleme görevinde olan klapenin (3) açisal hareketini saglamaktadir. Stepped shafts (4) built into the butterfly valve system, limit the flow or It also provides the angular movement of the flap (3), which is in the function of preventing it.
Bahsedilen kademeli miller (4) ile yataklarin (5) arasindaki sürtünmenin minimize edilmesi; bahsedilen kademeli millerin (4) malzeme seçimiyle ve bahsedilen yataklarin (5) malzeme seçimleri ile kendinden yaglamali olarak hazirlanmasiyla elde edilmektedir. The friction between the mentioned stepped shafts (4) and the bearings (5) is minimized. to be made; with the material selection of said stepped shafts (4) and said with self-lubricating preparation of the bearings (5) with material selections is obtained.
Mevcut tekniklerde kullanilan mil yapilarinin düz sekilde yuvaya yerlesmesi ve daha kalin bir yapida olmasi, klape ve mil agirliginin artmasina sebep olup, bu durum vana sistemlerinde sikintilarin görülmesine neden olmaktadir. Bulus konusu olan kademeli milin (4) özellestirilmis yapisi, bahsedilen kademeli milin (4) akis debisinden herhangi bir hasar görmemesini saglarken, kelebek vana kullanimini da uzun ömürlü kilmaktadir. Placing the shaft structures used in existing techniques straight into the slot and The fact that it has a thick structure causes the clapper and shaft weight to increase, and this situation causes troubles in valve systems. subject of the invention the customized structure of the stepped shaft (4), the flow of said stepped shaft (4) While ensuring that it is not damaged by the flow rate, it also ensures the use of butterfly valves. makes it long lasting.
Bulus konusu kelebek vana sisteminde kullanilan bahsedilen hidrodinamik klape (3) akista meydana gelen titresimleri ortadan kaldirmaktadir. Bu sayede daha düzenli bir akis saglanmaktadir. Said hydrodynamic flap used in the butterfly valve system which is the subject of the invention (3) eliminates the vibrations that occur in the flow. In this way, more A regular flow is ensured.
Sekil - 5 ve Sekil - 6' da görülen, bahsedilen gövdeye (2) tahrik tarafi ve karsi tarafindan konumlandirilmis en az birer adet olan yataklar (5), kelebek vana sisteminde bahsedilen kademeli millerin (4) akiskan basincina karsi egilmesini önlemektedir. Bahsedilen yataklar (5), ayni zamanda akiskan basinci sebebiyle olusan kuvvetleri de tasimaktadir. The drive side and opposite to the body (2) seen in Figure - 5 and Figure - 6 bearings (5), at least one each positioned by the butterfly valve the stepped shafts (4) mentioned in the system are bent against the fluid pressure. prevents. Said bearings (5) are also due to fluid pressure. It also carries the resulting forces.
Bahsedilen yataklar (5) ve bahsedilen kademeli millerin (4) malzemeleri, alternatif malzeme kullanimina olanak saglayarak, üretimi sinirlandirmamaktadir. The materials of said bearings (5) and said stepped shafts (4) are alternative It does not limit the production by allowing the use of materials.
Sekil - 7' de ayrintili olarak görülen sizdirmazlik lastigi (6) yapisi, kelebek vana sisteminde sizdirmazligi saglamaktadir. Bahsedilen sizdirmazlik lastigi (6), bahsedilen klapenin (3) etrafini tam tur dolanacak sekilde konumlandirilmistir. The sealing rubber (6) structure shown in detail in Figure - 7, the butterfly valve It provides tightness in the system. Said sealing rubber (6), it is positioned in such a way that it goes around the said flap (3) completely.
Bahsedilen sizdirmazlik lastigi (6) bahsedilen baski çemberiyle (7) ve bahsedilen hidrodinamik klapeyle (3) birlikte sizdirmazlik bölgesini olusturmaktadir. Said sealing rubber (6) is combined with said pressure ring (7) and said sealing rubber (6) together with the hydrodynamic flap (3), it forms the sealing zone.
Bahsedilen sizdirmazlik bölgesi elemanlarinin bahsedilen gövdedeki (2) yerine tam olarak yerlesmesi saglanmis olup, kelebek vananin akis hattindaki kullaniminda, akiskanlar sebebiyle ortaya çikabilecek sizdirmalarin da önüne geçilmektedir. Placement of said sealing zone elements in said body (2) It has been ensured that it is placed as Leakages that may occur due to fluids are also prevented.
Bulus konusu, bahsedilen gövdede (2) yataklanmis, bahsedilen kademeli mil (4) sayesinde, bahsedilen hidrodinamik klapenin (3), bahsedilen gövdenin (2) her iki ucundan da bahsedilen gövdede (2) yer alan yuvalara tutturulmasiyla olusturulmustur. Bahsedilen kademeli millerin (4) yerinden kaymamasi, bahsedilen gövde (2) üzerinde yer alan her iki yanda da en az birer adet mevcut olan yataklari (5) sayesinde saglanmaktadir. Bahsedilen kademeli miller (4) bahsedilen yataklara (5) tam olarak oturmaktadir. Bahsedilen kademeli mil (4) yapisinin, bahsedilen gövdeye (2) oturmasini saglayan bahsedilen yataklar (5) malzeme yapisi sayesinde pürüzlülük degerini azaltmakta olup, akiskanlara karsi direnç artirilmaktadir. Bahsedilen yataklarin (5) üretim malzemeleri, alternatif malzeme kullanimina olanak saglayarak, üretimi sinirlandirmamaktadir. The subject of the invention is the said stepped shaft (4), which is supported in the said body (2). Thanks to this, said hydrodynamic damper (3) is connected to both sides of said body (2). by attaching it to the slots in the body (2) mentioned at the end of it. has been created. The mentioned stepped shafts (4) do not slip out of place, There is at least one on both sides of the said body (2). It is provided by its bearings (5). Mentioned stepped shafts (4) fits the said bearings (5) exactly. The mentioned stepped shaft (4) said bearings (5) that allow its structure to fit into said body (2) Thanks to its material structure, it reduces the roughness value and is resistant to fluids. resistance is increased. Production materials of the mentioned bearings (5), alternative It does not limit the production by allowing the use of materials.
Bahsedilen sizdirmazlik lastigi (6) ve bahsedilen baski çemberi (7) ise gövdenin iç kismini tamamen çevreleyerek kelebek vana sistemini tamamlamaktadir. Said sealing rubber (6) and said pressure circle (7) are inside the body. It completes the butterfly valve system by completely surrounding the part of the valve.
Yukarida anlatilan, bahsedilen mil yapisi, alternatif malzeme kullanimina olanak saglayarak üretimi sinirlandirmamakta olup, konik ya da kademeli olarak yapilmaktadir.The above-mentioned shaft structure allows the use of alternative materials. It does not limit the production by providing is being done.
Claims (3)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TR2021/016517A TR2021016517A2 (en) | 2021-10-22 | 2021-10-22 | DUAL ECCENTRIC BUTTERFLY VALVE WITH STEP SHAFT CONSTRUCTION |
| PCT/TR2022/050159 WO2023069039A1 (en) | 2021-10-22 | 2022-02-22 | Double eccentric butterfly valve with stepped shaft structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TR2021/016517A TR2021016517A2 (en) | 2021-10-22 | 2021-10-22 | DUAL ECCENTRIC BUTTERFLY VALVE WITH STEP SHAFT CONSTRUCTION |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TR2021016517A2 true TR2021016517A2 (en) | 2021-11-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TR2021/016517A TR2021016517A2 (en) | 2021-10-22 | 2021-10-22 | DUAL ECCENTRIC BUTTERFLY VALVE WITH STEP SHAFT CONSTRUCTION |
Country Status (2)
| Country | Link |
|---|---|
| TR (1) | TR2021016517A2 (en) |
| WO (1) | WO2023069039A1 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3784157A (en) * | 1972-05-15 | 1974-01-08 | Fmc Corp | Butterfly valve stem seal energizer |
| US4214731A (en) * | 1977-04-01 | 1980-07-29 | Kubota Ltd. | Butterfly valve |
| FR2692622B1 (en) * | 1992-06-17 | 1994-09-16 | Solex | Rotary throttle member for internal combustion engine power supply installation and throttle body including application. |
| DE19848440A1 (en) * | 1998-10-21 | 2000-04-27 | Mann & Hummel Filter | Injection molded valve flap for valve mechanism has compensation for shrinkage provided by elastic flap edge |
-
2021
- 2021-10-22 TR TR2021/016517A patent/TR2021016517A2/en unknown
-
2022
- 2022-02-22 WO PCT/TR2022/050159 patent/WO2023069039A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023069039A1 (en) | 2023-04-27 |
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