JP2006322441A - Flap valve device for high temperature - Google Patents

Flap valve device for high temperature Download PDF

Info

Publication number
JP2006322441A
JP2006322441A JP2005174243A JP2005174243A JP2006322441A JP 2006322441 A JP2006322441 A JP 2006322441A JP 2005174243 A JP2005174243 A JP 2005174243A JP 2005174243 A JP2005174243 A JP 2005174243A JP 2006322441 A JP2006322441 A JP 2006322441A
Authority
JP
Japan
Prior art keywords
valve
side plate
valve body
flow path
valve device
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.)
Withdrawn
Application number
JP2005174243A
Other languages
Japanese (ja)
Inventor
Yoshihiro Tsuchiya
由弘 土屋
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.)
Sango Co Ltd
Original Assignee
Sango Co Ltd
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 Sango Co Ltd filed Critical Sango Co Ltd
Priority to JP2005174243A priority Critical patent/JP2006322441A/en
Publication of JP2006322441A publication Critical patent/JP2006322441A/en
Withdrawn legal-status Critical Current

Links

Images

Landscapes

  • Exhaust Silencers (AREA)
  • Lift Valve (AREA)
  • Multiple-Way Valves (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To improve sealing performance of a flap valve device for high temperatures. <P>SOLUTION: A side plate with small thickness is provided along a valve element so as to be sandwiched between a valve element peripheral part and a valve seat at the time of sliding contact with the valve seat of the valve element. The side plate is sandwiched between the valve element peripheral part and the valve seat to fill in a gap, and leakage of fluid is blocked. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、産業用などの高温流体の配管に用いられる高温用フラップバルブ装置に係る。  The present invention relates to a high-temperature flap valve device used for piping of high-temperature fluid for industrial use.

産業用、特に内燃機関の排気管の上流において流路開閉や切換に用いられる高温用フラップバルブは、高温時におけるバルブ（弁体）の熱変形によって弁座との密着性が悪化し、シール性の確保が困難になるという問題がある。高温でのシール性を確保するため従前より各種の提案がなされているが、その代表例として、特許文献１に記載のフラップバルブ装置が知られている。特許文献１のフラップバルブ装置は、シール面を有する可動弁体を可動支持体で揺動自在に支持し、可動支持体を回動させて可動弁体をシール面に摺接させる構造である。摺接に際して、シール面の弁座に対する角度自由度を与えることで密着性が向上するとされる。  High-temperature flap valves used for industrial use, especially upstream and downstream of the exhaust pipe of an internal combustion engine, for switching and switching the flow path deteriorate due to thermal deformation of the valve (valve body) at high temperatures, and sealing performance There is a problem that it is difficult to secure the system. Various proposals have been made in the past in order to ensure sealing performance at high temperatures. As a typical example, a flap valve device described in Patent Document 1 is known. The flap valve device of Patent Document 1 has a structure in which a movable valve body having a seal surface is supported by a movable support body so as to be swingable, and the movable support body is rotated so that the movable valve body slides on the seal surface. In sliding contact, it is said that adhesion is improved by giving an angular degree of freedom with respect to the valve seat of the seal surface.

また、広義のフラップバルブの一種である高温用バタフライバルブの例として、特許文献２に記載のバタフライバルブ装置が知られている。特許文献２のバタフライバルブ装置は、カラー部を介して弁体に薄板シート部をフローティング支持し、薄板シート部の周縁部を弾性変形させつつ弁座に押圧する構造である。  Moreover, the butterfly valve apparatus of patent document 2 is known as an example of the high temperature butterfly valve which is a kind of flap valve in a broad sense. The butterfly valve device of Patent Document 2 has a structure in which a thin plate sheet portion is floatingly supported on a valve body via a collar portion and pressed against a valve seat while elastically deforming a peripheral portion of the thin plate sheet portion.

特開２００２−１７４１１９JP 2002-174119 A 特開平８−１２８５３８JP-A-8-128538

しかしながら、特許文献１のフラップバルブ装置においては、摺接時の相対角度が調整され角度ずれが是正されたとしても、各部位の熱歪みや熱膨張による密着性悪化は依然として解決されない。また、構造も複雑であるので、信頼性悪化が懸念されると共にコストも嵩むという問題がある。  However, in the flap valve device of Patent Document 1, even if the relative angle at the time of sliding contact is adjusted and the angle deviation is corrected, adhesion deterioration due to thermal distortion or thermal expansion of each part is still not solved. In addition, since the structure is complicated, there is a problem that the reliability may be deteriorated and the cost is increased.

また、特許文献２のフラップバルブ装置は、特に弁棒が弁体中央に位置するタイプの所謂バタフライバルブ装置であるが、この装置においては薄板シート部の周縁部だけが弁座へ押しつけられるため、強度の低い薄板シート部の周縁部は密着力を発揮し難いとともに、過度の密着力を与えれば容易に弾性域を越えて塑性変形してしまう。特に強度が低下する高温においては、この問題が顕著になる。従って、高温用フラップバルブとして、確実なシール性を保証できないという問題がある。  In addition, the flap valve device of Patent Document 2 is a so-called butterfly valve device in which the valve stem is particularly located at the center of the valve body. In this device, only the peripheral edge of the thin sheet portion is pressed against the valve seat. The peripheral edge portion of the thin sheet sheet portion having low strength is difficult to exert an adhesive force, and if an excessive adhesive force is applied, the peripheral edge portion easily undergoes plastic deformation beyond the elastic region. This problem becomes significant especially at high temperatures where the strength decreases. Therefore, there is a problem that reliable sealing performance cannot be guaranteed as a high-temperature flap valve.

上記課題を解決するため、本発明は請求項１記載のように、弁棒の軸芯周りに回転し弁箱内の流路を開閉する弁体を弁棒に取り付け、全開時に、弁体に沿設した側板の周縁部が弁体の周縁部と弁座によって挟持される高温用フラップバルブ装置とした。  In order to solve the above-mentioned problems, the present invention attaches a valve body to the valve stem that rotates around the shaft core of the valve stem and opens and closes the flow path in the valve box, and when the valve body is fully opened, A high-temperature flap valve device in which the peripheral portion of the side plate provided along the side plate is sandwiched between the peripheral portion of the valve body and the valve seat.

請求項２に記載の発明のように、請求項１に記載の高温用フラップバルブ装置において、少なくとも側板の周縁部は弁体より板厚を小さくするとよい。  As in the invention described in claim 2, in the high-temperature flap valve device described in claim 1, it is preferable that at least the peripheral portion of the side plate has a smaller plate thickness than the valve body.

請求項３に記載の発明のように、請求項１及び請求項２に記載の製造方法において、全開時の弁体および側板より上流の流路内に、流体の変向手段を設けるとよい。  As in the invention described in claim 3, in the manufacturing method described in claims 1 and 2, it is preferable to provide a fluid diverting means in the flow path upstream from the valve body and the side plate when fully opened.

請求項１記載の発明によれば、弁体全閉時には弁体周縁部と弁座の間に側板周縁部が挟持され、側板周縁部が弾性変形して微小隙間を埋めることで流体の流通が阻止されるので、シール性が保たれる。  According to the first aspect of the present invention, when the valve body is fully closed, the side plate peripheral portion is sandwiched between the valve body peripheral portion and the valve seat, and the side plate peripheral portion is elastically deformed to fill a minute gap, thereby allowing fluid to flow. Since it is blocked, the sealing performance is maintained.

請求項２記載の発明によれば、弁体に対して側板が薄いため挟持による弾性変形がし易くなり、一層確実にシール性が保たれる。  According to the invention described in claim 2, since the side plate is thin with respect to the valve body, it is easy to be elastically deformed by clamping, and the sealing performance is more reliably maintained.

請求項３記載の発明によれば、全開時に流体が変向手段によって流れを強制的に変えられて弁体及び側板の先端に当たることを防げるので、弁体と側板の間に流体が侵入し側板が振動する懸念が回避される。  According to the third aspect of the invention, when the fluid is fully opened, the flow is forcibly changed by the deflecting means to prevent it from hitting the tip of the valve body and the side plate. The concern of vibrating is avoided.

本発明を実施するための最良の形態を図１乃至図５に示す実施例に基づいて説明する。図１に示すのは第１の実施例の高温用フラップバルブ装置の横断面図であり、流路の全閉状態を現す。弁箱たるケーシング１内を貫通する流路２が形成され、流路２を開閉自在な弁体５の一端部が弁棒８によって軸支されている。弁体５には、より板厚が小さく略同形状の側板６が沿設されているが、軸支部を除き両者は密着固定されてはいない。そして弁体５と側板６は下部を一体的に共通の弁棒８によって軸支されており、弁棒８の軸芯７回りの回転に従って一体回動し、流路２を開閉する。なお、内燃機関の排気系上流部に用いる場合には、弁体、側板ともにステンレス合金等の高耐熱金属材を用いるのが好ましく、板厚例としては弁体がｔ１．０〜２．０ｍｍ程度、側板がｔ０．２〜０．６ｍｍ程度とするのが好ましい。  The best mode for carrying out the present invention will be described based on the embodiment shown in FIGS. FIG. 1 is a cross-sectional view of the high-temperature flap valve device of the first embodiment, showing the fully closed state of the flow path. A flow path 2 that penetrates through the inside of the casing 1 that is a valve box is formed, and one end of a valve body 5 that can freely open and close the flow path 2 is pivotally supported by a valve rod 8. The valve body 5 is provided with a side plate 6 having a smaller plate thickness and substantially the same shape, but they are not firmly fixed except for the shaft support portion. The valve body 5 and the side plate 6 are pivotally supported integrally by a common valve rod 8 at the lower portion, and rotate integrally as the valve rod 8 rotates about the axis 7 to open and close the flow path 2. In addition, when using it for the exhaust system upstream part of an internal combustion engine, it is preferable to use high heat-resistant metal materials, such as a stainless alloy, for a valve body and a side plate, and a valve body is about t1.0-2.0mm as an example of plate | board thickness. The side plate is preferably about t0.2 to 0.6 mm.

ケーシング１の上流部（図の左側）には、２点鎖線で示す上流管９が、下流部（図の右側）には、２点鎖線で示す下流管１０が、それぞれ嵌合固定される。そして高温流体は、上流管９〜流路２〜下流管１０の順に流下する。なお、本実施例では流路２、上流管９、下流管１０ともに円断面となっているが、断面形状は円に限らず任意である。流路２内には、ケーシング１内壁が略環状に突出した弁座３が設けられており、特に弁座３の上流側には環状平面である座面４が形成されている。  An upstream pipe 9 indicated by a two-dot chain line is fitted and fixed to the upstream portion (left side in the figure) of the casing 1, and a downstream pipe 10 indicated by a two-dot chain line is fitted and fixed to the downstream part (right side in the figure). The high-temperature fluid flows down in the order of the upstream pipe 9 to the flow path 2 to the downstream pipe 10. In the present embodiment, the flow path 2, the upstream pipe 9, and the downstream pipe 10 have circular cross sections, but the cross sectional shape is not limited to a circle and is arbitrary. A valve seat 3 in which the inner wall of the casing 1 protrudes in a substantially annular shape is provided in the flow path 2, and in particular, a seat surface 4 that is an annular flat surface is formed on the upstream side of the valve seat 3.

そして、流路２の全閉時においては、弁体５と側板６の各周縁部が全周に亘って座面４へ押し付けられて、流体をシールする。このとき、側板６の周縁部は弁体５の周縁部によって強く押され、その反力として座面４からも強く押し返され、結果、弁体５と座面４によって強固に挟持されることになる。従って、高剛性の弁体５及び弁座３に対して相対的に低剛性の側板６は、両者の表面形状になつくよう微視的な弾性変形を余儀なくされる。この変形によって側板６と弁体５及び側板６と弁座３の接触面間の微小隙間が埋められる。即ち、側板５は実質的なシール体として機能し、流体の洩れを遮断可能となる。  When the flow path 2 is fully closed, the peripheral portions of the valve body 5 and the side plate 6 are pressed against the seat surface 4 over the entire circumference to seal the fluid. At this time, the peripheral edge portion of the side plate 6 is strongly pressed by the peripheral edge portion of the valve body 5 and is also strongly pressed back from the seat surface 4 as a reaction force, and as a result, is firmly held between the valve body 5 and the seat surface 4. become. Therefore, the relatively rigid side plate 6 relative to the highly rigid valve body 5 and the valve seat 3 is forced to undergo microscopic elastic deformation so as to be in the shape of both surfaces. By this deformation, the minute gaps between the contact surfaces of the side plate 6 and the valve body 5 and between the side plate 6 and the valve seat 3 are filled. That is, the side plate 5 functions as a substantial seal body and can block fluid leakage.

２点鎖線で示す弁体５及び側板６は、流路の全開状態である。両者とも一端部を図示しないネジによって弁軸８へ固設されており、図示しない駆動手段による弁棒８の強制回動に従い弁棒８は軸芯７回りに回転し、弁体５と側板６は一体的に回動する。弁体５及び側板６は、弁棒８への取り付け部を除いては物理的な相互固定はされておらず、微小な隙間を保って重なっている状態（沿設）である。なお、流体の加振により薄板である側板６の振動発生が懸念される場合には、部分的にスポット溶接等で弁体５と側板６を固定しても良いが、シール面に影響しないように配慮が必要である。同様な配慮で、側板６の不要部分である非シール面を切除（肉抜き）しても構わない。  The valve body 5 and the side plate 6 indicated by a two-dot chain line are in a fully open state of the flow path. In both cases, one end is fixed to the valve shaft 8 by a screw (not shown), and the valve rod 8 rotates around the shaft core 7 in accordance with the forced rotation of the valve rod 8 by a driving means (not shown). Rotate integrally. The valve body 5 and the side plate 6 are not physically fixed except for the attachment portion to the valve stem 8, and are in a state of being overlapped with a minute gap (alongside). If there is a concern about vibration of the side plate 6 which is a thin plate due to vibration of the fluid, the valve body 5 and the side plate 6 may be partially fixed by spot welding or the like, but the sealing surface is not affected. Consideration is necessary. With the same consideration, the non-seal surface, which is an unnecessary part of the side plate 6, may be cut off (thickened).

図２に示すのは第２の実施例の高温用フラップバルブ装置の横断面図であり、全閉状態を現す。弁箱たるケーシング２１内を貫通する流路２２が形成され、流路２２を開閉自在な弁体２５下端部が弁棒２８によって軸支されている。弁体２５には、より板厚が小さく略同形状の側板２６が沿設されているが、軸支部を除き両者は密着固定されてはいない。そして第１の実施例と同様、全閉時においては側板２６が弁体２５と弁座２３（座面２４）に挟持され、確実なシールが実現される。  FIG. 2 is a cross-sectional view of the high-temperature flap valve device of the second embodiment, showing the fully closed state. A flow path 22 that penetrates through the inside of the casing 21 that is a valve box is formed, and a lower end of a valve body 25 that can freely open and close the flow path 22 is pivotally supported by a valve rod 28. The valve body 25 is provided with a side plate 26 having a smaller plate thickness and substantially the same shape, but the two are not firmly fixed except for the shaft support portion. As in the first embodiment, when fully closed, the side plate 26 is sandwiched between the valve body 25 and the valve seat 23 (seat surface 24), and a reliable seal is realized.

ケーシング２１の下方には、全開時に弁体２５が収容される凹みである収納部３０が、流路２２に臨んで形成されている。２点鎖線で示される全開時において、弁体２５と側板２６は収納部３０内に収納される。ケーシング２１は第１実施例とは異なる矩形断面（図示せず）の筒状体であり、収納部３０は矩形の底面部に段差２９を介して形成されておりその深さは弁体２５の上側に来る側板２６上表面が流路２２面と略一致する程度である。  Under the casing 21, a storage portion 30, which is a recess in which the valve body 25 is stored when fully opened, is formed facing the flow path 22. When fully opened as indicated by a two-dot chain line, the valve element 25 and the side plate 26 are accommodated in the accommodating portion 30. The casing 21 is a cylindrical body having a rectangular cross section (not shown) different from that of the first embodiment, and the storage portion 30 is formed on the bottom surface portion of the rectangle via a step 29, and the depth of the storage portion 30 is that of the valve body 25. The upper surface of the side plate 26 that is on the upper side is approximately the same as the surface of the flow path 22.

このように構成されたので、全開時においては上流から流下する高温流体が直接弁体２５及び側板２６の前端面に当接しない。そのため、弁体２５と側板２６の前面隙間から流体が流入して低剛性の側板２６を振動させるのを防止できる。  With this configuration, the high temperature fluid flowing down from the upstream does not directly contact the front end surfaces of the valve body 25 and the side plate 26 when fully opened. Therefore, it is possible to prevent the fluid from flowing in through the front gap between the valve body 25 and the side plate 26 and causing the low-rigidity side plate 26 to vibrate.

図３に示すのは第３の実施例の高温用フラップバルブ装置の横断面図であり、全開状態を現す。ケーシング３１内に弁体３３及び側板３４が、弁棒３５によって軸支されている。そして、弁体３３及び側板３４より上流のケーシング３１底面には、導風板３２が固定されている。導風板３２は、略Ｓ字断面を有し弁体３３の幅に亘って奥行方向（紙面表裏方向）に延在する板材であり、他部品同様、高耐熱金属材料で造られていることが望ましい。導風板３２は、第２の実施例と同様、上流から流下する高温流体が直接弁体３３及び側板３４の上流端面に当接しないように、流体の流れを積極的に図の上方へ変向する変向手段であって、弁体２５と側板２６の合計厚さよりも高い（図の上方）位置まで延出していることが望ましい。なお、変向手段としての導風板形状はこれに限らず、変向機能があれば形状は任意である。また、変向手段をケーシングと一体形成しても構わない。  FIG. 3 is a cross-sectional view of the high-temperature flap valve device of the third embodiment, showing the fully opened state. A valve body 33 and a side plate 34 are pivotally supported in the casing 31 by a valve rod 35. An air guide plate 32 is fixed to the bottom surface of the casing 31 upstream from the valve body 33 and the side plate 34. The air guide plate 32 is a plate material having a substantially S-shaped cross section and extending in the depth direction (front and back direction in the drawing) across the width of the valve element 33, and is made of a high heat resistant metal material like other parts. Is desirable. As in the second embodiment, the air guide plate 32 actively changes the fluid flow upward in the drawing so that the high-temperature fluid flowing down from the upstream side does not directly contact the upstream end surfaces of the valve body 33 and the side plate 34. It is desirable that the turning means is directed to a position higher than the total thickness of the valve body 25 and the side plate 26 (upward in the drawing). The shape of the wind guide plate as the direction changing means is not limited to this, and the shape is arbitrary as long as it has a direction changing function. Further, the turning means may be integrally formed with the casing.

図４に示すのは第４の実施例の高温用フラップバルブ装置の横断面図であり、全開状態を現す。ケーシング３６内に弁体３７及び側板３８が、弁棒３９によって軸支されている。そして、側板３８の上流先端は下方に折り曲げられてカバー部４０を形成している。カバー部４０の存在によって、上流から流下する高温流体が弁体３７と側板３８との前面隙間に流入するのを防止でき、低剛性の側板２６が振動するのを回避できる。  FIG. 4 is a cross-sectional view of the high-temperature flap valve device of the fourth embodiment, showing the fully opened state. A valve element 37 and a side plate 38 are pivotally supported in the casing 36 by a valve rod 39. The upstream tip of the side plate 38 is bent downward to form the cover portion 40. Due to the presence of the cover portion 40, it is possible to prevent the high-temperature fluid flowing down from the upstream from flowing into the front gap between the valve element 37 and the side plate 38, and to avoid the vibration of the low-rigidity side plate 26.

図５に示すのは第５の実施例の高温用フラップバルブ装置の横断面図である。上記実施例とは異なり、２つの下流路を選択する所謂３方弁である。ケーシング４１は、１本の上流枝管４２と２本の下流枝管４３及び４４からなり、それらの内部に夫々流路４５、４６４７を有する。また、上流枝管４２には２点鎖線で示した上流管５４が、下流枝管４３には同下流管５５が、下流枝管４４には同下流管５６が、夫々嵌合固定される。下流側流路４６、４７内には、夫々弁座４８、４９が設けられており、弁体５０及び側板５１、５２が摺接可能である。下流側流路４６と４７の合流部には弁棒５３が軸支されており、弁棒５３の回転によって、弁体５０及び側板５１，５２が一体的に回動される。  FIG. 5 is a cross-sectional view of the high-temperature flap valve device of the fifth embodiment. Unlike the above embodiment, it is a so-called three-way valve that selects two lower flow paths. The casing 41 includes one upstream branch pipe 42 and two downstream branch pipes 43 and 44, and has flow paths 45 and 4647, respectively, inside thereof. The upstream branch pipe 42 is fitted and fixed with an upstream pipe 54 indicated by a two-dot chain line, the downstream branch pipe 43 with the downstream pipe 55, and the downstream branch pipe 44 with the downstream pipe 56. Valve seats 48 and 49 are provided in the downstream flow paths 46 and 47, respectively, and the valve body 50 and the side plates 51 and 52 can be slidably contacted. A valve rod 53 is pivotally supported at the junction of the downstream flow paths 46 and 47, and the valve body 50 and the side plates 51 and 52 are integrally rotated by the rotation of the valve rod 53.

弁体５０の両側面には、上述の各実施例と同要領で側板５１と５２が一体的に沿設されている。そして、流路４５と流路４７を連通させたい場合には、弁体５０は左回りに回動し側板５１と弁座４８を摺接させる。一方、流路４５と流路４６を連通させたい場合には弁体５０は右回りに回動し側板５２と弁座４９を摺接させる。このように、複数の流路を選択する多方弁においても、本発明は適宜援用可能である。もちろん、多方弁においても、第２の実施例における収納部や、第３の実施例における変向手段や、第３の実施例におけるカバー部を、適宜援用して構わない。  Side plates 51 and 52 are integrally provided on both side surfaces of the valve body 50 in the same manner as the above-described embodiments. When the flow path 45 and the flow path 47 are desired to communicate with each other, the valve body 50 rotates counterclockwise to bring the side plate 51 and the valve seat 48 into sliding contact. On the other hand, when it is desired to make the flow path 45 and the flow path 46 communicate with each other, the valve body 50 rotates clockwise to bring the side plate 52 and the valve seat 49 into sliding contact. Thus, the present invention can be used as appropriate even in a multi-way valve that selects a plurality of flow paths. Of course, also in the multi-way valve, the storage portion in the second embodiment, the turning means in the third embodiment, and the cover portion in the third embodiment may be used as appropriate.

以上、本発明の実施例を説明してきたが、本発明は上述の実施例に限られるものではなく、本発明の趣旨を逸脱しない範囲の設計変更があっても、本発明に包含される。そして、適用対象は、広義のフラップバルブであって弁棒が弁中央に位置する所謂バタフライバルブにも及ぶ。また、内燃機関の排気管用に限定するものではなく、汎用エンジンや据置式燃焼装置等、あらゆる高温ガス発生装置の配管に用いるフラップバルブ装置に適用可能である。  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and design changes within a range not departing from the gist of the present invention are also included in the present invention. The object of application also extends to a so-called butterfly valve which is a flap valve in a broad sense and whose valve stem is located at the center of the valve. Further, the present invention is not limited to an exhaust pipe of an internal combustion engine, and can be applied to a flap valve device used for piping of any high-temperature gas generator such as a general-purpose engine or a stationary combustion device.

第１の実施例を示す横断面図。The cross-sectional view showing the first embodiment. 第２の実施例を示す横断面図。The cross-sectional view showing a second embodiment. 第３の実施例を示す横断面図。The cross-sectional view showing a third embodiment. 第４の実施例を示す横断面図。A cross-sectional view showing a fourth embodiment. 第５の実施例を示す横断面図。The cross-sectional view showing a fifth embodiment.

符号の説明Explanation of symbols

１，２１，３１，３６，４１ ケーシング
２，２２，４５，４６，４７ 流路
３，２３，４８，４９ 弁座
４，２４ 座面
５，２５，３３，３７，５０ 弁体
６，２６，３４，３８，５１，５２ 側板
７ 軸芯
８，２８，３５，３９，５３ 弁棒
９，５４ 上流管
１０，５５，５６ 下流管
２９ 段差
３０ 収納部
３２ 導風板
４０ カバー部1, 21, 31, 36, 41 Casing 2, 22, 45, 46, 47 Flow path 3, 23, 48, 49 Valve seat 4, 24 Seat surface 5, 25, 33, 37, 50 Valve body 6, 26, 34, 38, 51, 52 Side plate 7 Axle core 8, 28, 35, 39, 53 Valve stem 9, 54 Upstream pipe 10, 55, 56 Downstream pipe 29 Step 30 Storage part 32 Air guide plate 40 Cover part

Claims (3)

弁棒の軸芯周りに回転し弁箱内の流路を開閉する弁体を弁棒に取り付け、
全閉時に、前記弁体に沿設した側板の周縁部が前記弁体の周縁部と前記弁座によって挟持されることを特徴とする高温用フラップバルブ装置。A valve body that rotates around the axis of the valve stem and opens and closes the flow path in the valve box is attached to the valve stem.
A flap valve device for high temperature, wherein a peripheral edge of a side plate provided along the valve body is sandwiched between the peripheral edge of the valve body and the valve seat when fully closed. 少なくとも前記側板の周縁部は前記弁体より板厚が小さいことを特徴とする請求項１記載の高温用フラップバルブ装置。  The flap valve device for high temperature according to claim 1, wherein at least a peripheral portion of the side plate has a plate thickness smaller than that of the valve body. 全開時における前記弁体及び側板より上流の前記流路に、流体の変向手段を設けたことを特徴とする請求項１及び請求項２記載の高温用フラップバルブ装置。  The high-temperature flap valve device according to claim 1 or 2, wherein a fluid diverting means is provided in the flow path upstream of the valve body and the side plate when fully opened.
JP2005174243A 2005-05-18 2005-05-18 Flap valve device for high temperature Withdrawn JP2006322441A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005174243A JP2006322441A (en) 2005-05-18 2005-05-18 Flap valve device for high temperature

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005174243A JP2006322441A (en) 2005-05-18 2005-05-18 Flap valve device for high temperature

Publications (1)

Publication Number Publication Date
JP2006322441A true JP2006322441A (en) 2006-11-30

Family

ID=37542297

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005174243A Withdrawn JP2006322441A (en) 2005-05-18 2005-05-18 Flap valve device for high temperature

Country Status (1)

Country Link
JP (1) JP2006322441A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008215258A (en) * 2007-03-06 2008-09-18 Toyota Motor Corp Intake device for internal combustion engine
WO2010120438A2 (en) * 2009-04-16 2010-10-21 Tenneco Automotive Operating Company Inc. Method of installing rotatable flapper valve to an interior of a conduit
KR101144427B1 (en) 2010-07-13 2012-05-11 주식회사 라니 a return manifold connecter for a room heating apparatus
US8215103B2 (en) 2007-03-16 2012-07-10 Tenneco Automotive Operating Company Inc. Snap-action valve for exhaust system
US8353153B2 (en) 2010-02-25 2013-01-15 Tenneco Automotive Operating Company Inc. Snapper valve for hot end systems with burners
CN117704080A (en) * 2024-02-06 2024-03-15 中国空气动力研究与发展中心空天技术研究所 Labyrinth dynamic seal movable joint

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008215258A (en) * 2007-03-06 2008-09-18 Toyota Motor Corp Intake device for internal combustion engine
JP4485541B2 (en) * 2007-03-06 2010-06-23 トヨタ自動車株式会社 Intake device for internal combustion engine
US8215103B2 (en) 2007-03-16 2012-07-10 Tenneco Automotive Operating Company Inc. Snap-action valve for exhaust system
WO2010120438A2 (en) * 2009-04-16 2010-10-21 Tenneco Automotive Operating Company Inc. Method of installing rotatable flapper valve to an interior of a conduit
WO2010120438A3 (en) * 2009-04-16 2011-01-20 Tenneco Automotive Operating Company Inc. Method of installing rotatable flapper valve to an interior of a conduit
US8353153B2 (en) 2010-02-25 2013-01-15 Tenneco Automotive Operating Company Inc. Snapper valve for hot end systems with burners
KR101144427B1 (en) 2010-07-13 2012-05-11 주식회사 라니 a return manifold connecter for a room heating apparatus
CN117704080A (en) * 2024-02-06 2024-03-15 中国空气动力研究与发展中心空天技术研究所 Labyrinth dynamic seal movable joint
CN117704080B (en) * 2024-02-06 2024-04-05 中国空气动力研究与发展中心空天技术研究所 Labyrinth dynamic seal movable joint

Similar Documents

Publication Publication Date Title
JP2006322441A (en) Flap valve device for high temperature
JP2002089257A (en) Valve for control muffler and valve element assembling method of valve for control muffler
JP2014520993A (en) Valve device for controlling the exhaust gas flow of an internal combustion engine
JP2010242962A (en) Valve device
JP2018503030A (en) Valve device for automobile
WO2017131085A1 (en) Valve device and waste heat recovery system
JP2010501051A (en) Anti-sticking throttle valve for weak force
JP4578923B2 (en) Pipe opening and closing structure
JP6701436B2 (en) Butterfly valve and exhaust gas recirculation valve
JP6239615B2 (en) Engine control valve with improved seal
JPWO2013008268A1 (en) Valve shaft seal structure
JP2011179479A (en) Intake valve device
JP2006009602A (en) Exhaust gas passage opening/closing device and exhaust emission control device
CN213775558U (en) Exhaust valve, exhaust pipe line and vehicle
JP2015524527A (en) Engine control valve with improved operation
JP5063582B2 (en) Intake module
KR20090081663A (en) Swing butterfly damper
JP2010053924A (en) Heat insulating member and heat insulated tank
JP2006291719A (en) Valve for controlled muffler
JP2006118471A (en) Shaft structure of exhaust control valve
JP2006257969A (en) Exhaust system of internal combustion engine
JP2023081726A (en) valve assembly
JPH08303260A (en) Butterfly valve device for exhaust brake
JPH07259586A (en) Control valve device for exhaust system
WO2017154204A1 (en) Valve device

Legal Events

Date Code Title Description
A300 Withdrawal of application because of no request for examination

Free format text: JAPANESE INTERMEDIATE CODE: A300

Effective date: 20080805