TW201200715A - Removable filter cartridge for emission reduction devices - Google Patents

Removable filter cartridge for emission reduction devices Download PDF

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Publication number
TW201200715A
TW201200715A TW100108082A TW100108082A TW201200715A TW 201200715 A TW201200715 A TW 201200715A TW 100108082 A TW100108082 A TW 100108082A TW 100108082 A TW100108082 A TW 100108082A TW 201200715 A TW201200715 A TW 201200715A
Authority
TW
Taiwan
Prior art keywords
fiber mat
filter cartridge
segment
inner fiber
removable filter
Prior art date
Application number
TW100108082A
Other languages
Chinese (zh)
Inventor
Brien William J O'
Original Assignee
Sabertec L L C
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 Sabertec L L C filed Critical Sabertec L L C
Publication of TW201200715A publication Critical patent/TW201200715A/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • F01N13/082—Other arrangements or adaptations of exhaust conduits of tailpipe, e.g. with means for mixing air with exhaust for exhaust cooling, dilution or evacuation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/009—Exhaust or silencing apparatus characterised by constructional features having two or more separate purifying devices arranged in series
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • F01N13/085—Other arrangements or adaptations of exhaust conduits having means preventing foreign matter from entering exhaust conduit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
    • F01N13/1844—Mechanical joints
    • F01N13/1855—Mechanical joints the connection being realised by using bolts, screws, rivets or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/022—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
    • F01N3/0226—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous the structure being fibrous
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2330/00—Structure of catalyst support or particle filter
    • F01N2330/02—Metallic plates or honeycombs, e.g. superposed or rolled-up corrugated or otherwise deformed sheet metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2330/00—Structure of catalyst support or particle filter
    • F01N2330/20—Plastics, e.g. polymers, polyester, polyurethane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/30—Removable or rechangeable blocks or cartridges, e.g. for filters
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filtering Materials (AREA)

Abstract

A preferred embodiment of the present invention comprises a removable filter cartridge for emission reduction devices. In one embodiment, the filter cartridge may be inserted into the body of an emission reduction device so that, when the emission reduction device is in operation, at least some of the exhaust gasses passing through the emission reduction device must also pass through at least a portion of the filter cartridge. The filter cartridge may be removed at any time, such as for replacement or cleaning if the filter cartridge becomes dirty or clogged through use. In one embodiment, the filter cartridge includes two fibrous blankets consisting of an outer fibrous blanket that is formed into the shape of a cylinder and an inner fibrous blanket that substantially fits within the cylinder of the outer fibrous blanket.

Description

201200715 六、發明說明： L發明戶斤屬之技術領域1 本發明係有關於用於排放減少裝置之可移式過濾器 匣。 C先前技系好3 發明背景 本發明大體上有關於過濾器匣，且更具體而言，有關 於用於排放減少裝置的可移式過濾器匣。 排放減少裝置可被置於排氣管上以處理從内燃機排放 的廢氣。例如，排放減少裝置可被置於汽車及工業設備之 排氣管的端部。一排放減少裝置可包括一或更多個過濾器 匣。過濾器匣可輔助處理廢氣。可移式之一用於排放減少 裝置的過濾器匣有許多優點，該等優點從以下詳細說明及 附圖將是顯而易見的。 【發明内容】 發明概要 本發明之一較佳實施例包含用於排放減少裝置的一可 移式過濾器匣。在一實施例中，該過濾器匣可被插入一排 放減少裝置之本體中，使得該排放減少裝置在操作中，至 少某些通過該排放減少裝置的廢氣也必須通過至少一部分 的過渡器匣。 在一實施例中，該可移式過濾器匣包括一外纖維氈及 一内纖維氈。該外纖維氈的形狀可能近似於一圓柱體的形 狀且該内纖維氈的形狀可能近似於一圓錐體的形狀。除此 201200715 之外’該圓錐體的窄端可被插入該圓柱體中，使得該内纖 維魅實質上容納在該外纖維氈内。 在一實施例中，該可移式過濾器匣可包括約略為圓柱 形的一外纖維氈及一摺疊的内纖維氈。該内纖維氈可實質 上谷納在該外纖維觀内。 圖式簡單說明 第1圖繪示本發明裝置之一實施例的二纖維氈的一透 視圆； 第2圖繪示本發明裝置之一實施例的一外纖維氈的一 端視圖； 第3圖繪示本發明裝置之另一實施例的一外纖維氈的 一端視圖； 第4圖繪示本發明裝置之一實施例的一内纖維氈的一 透視圖； 第5圖繪示本發明裝置之一實施例的一内纖維氈的一 俯視圖； 第6圖繪示本發明裝置之一實施例的二纖維氈的一端 視圖；以及 第7圖繪示一排放減少裝置内的本發明裝置之一實施 例的一側視圖。 C實施方式3 詳細說明 本發明之一較佳實施例包含用於排放減少裝置的一可 移式過滤器匣。在一實施例中，該過慮器匣可被插入一減 201200715 少排放裝置的本體中’使得排放減少裝置在操作中’至少 某些通過該排放減少裝置的廢氣也必須通過至少一部分的 過濾器匣。依據各種不同的範例實施例，該排放減少裝置 的型態可以是如記載於名稱為「⑽β 6>/五所/撕‘口似」的美國專利公開申請案第 2008/0053068號案中者，該申請案全部内容併入本文作為 參考資料；或如記載於名稱為「加paci 朽/ier」的美國專利第7,731，773號案中者，該專利的全部内 容也併入本文作為參考資料。過濾器匣可隨時移除，諸如， 在使用過程中該過遽器匣變辦或塞滿時移除以更換气、主 理。在一實施例中，該過濾器匣可包含諸如黃色或白色的 淺色材料，使得在該過濾器匣使用過程中所收集的殘餘物 可輕易被發現以實現決定何時更換或清理該過據器匿的目 的。 現在參照第1圖，其繪示本發明裝置之一實施例 J —纖 維氈的一側視圖。在此實施例中，過濾器匣1〇1包括二 一^、哉維 賓毛，由形成約略為一空心圓柱體形狀的一外纖維說1 及〜 質上谷納在外纖維範1 〇2之圓柱體内的一内纖維魅1 〇3系 成。該等纖維氈可由可耐受廢氣之熱度及壓力的任—種材 料製成。範例材料包括一芳香族聚醯胺、一間位芳香埃聚 醯胺、一聚醯胺、一聚苯硫、一對苯_u，4_噁二唑、聚四氟 乙烯及玄武岩中的一或更多者的組合。 在一實施例中，外纖維氈102的表面可利用_保護屏 增強。例如，外纖維氈1〇2的表面可用一保護層來塗 即、覆 201200715 蓋或處理以增強過渡器匣1 0 1的過濾性能或強化外纖維诞 102的結構形狀。在第1圖中，例如，外纖維魅丨〇2的表面被 繪示為被一金屬絲網材料1〇4所覆蓋。一覆蓋物，諸如金屬 絲網材料104，可向外纖維氈1〇2之圓柱形提供結構完整性 而無需明顯增大外纖維氈102對廢氣流1〇8的阻力。在一實 施例中，外纖維鉱1〇2之圓柱體的長度1〇5約為3_9英寸或9.9 公分。在其他實施例中，外纖維氈1〇2之圓柱體的長度1〇5 可能在3.5英寸到4英寸或8.9公分到10.2公分的範圍内。在 一實施例中’外纖維氈102之圓柱體的直徑106約為2 25英 寸或5.7公分。在一實施例中，當内纖維氈1〇3實質上插入 外纖維氈102之圓柱體内時，内纖維氈1〇3延伸到外纖維氈 102外部’超出外纖維氈1〇2約〇5英寸或丨3公分的一長度 107。 現在參照第2圖，其繪示本發明裝置之一實施例的一外 纖維102的一端視圖。在此實施例中，一段外纖維能的二 外側邊緣201折入並縫合202在一起以形成一疊縫而線跡 202在外纖維氈1〇2之圓柱體的内部。雖然該長度的外側邊 緣201在此實施例中被繪示為縫合202在一起，但是可瞭解 到的是其他實施例可包括其他將該等邊緣束缚在一起的方 法，諸如，舉例而言，藉由使用一黏合劑或一黏扣帶。除 此之外，在圖中未示的一替代實施例中，一段外纖維宣毛1 〇2 的二外側邊緣201可折起並束缚在一起以形成一縫合，該縫 合的線跡202在外纖維氈1〇2之圓柱體的外部。在一實施例 中，外纖維氈102的厚度203約為0_125英寸或0.318公分。 201200715 現在參照第3圖’其繪示本發明裝置之另一實施例的一 外纖維鼓102的一端視圖。在此實施例中，一段外纖維飞1 〇2 的二外側邊緣201已重疊並縫合202在一起以形成·一私接 縫。雖然該段的外側邊緣2〇1在此實施例中被綠示為縫人 202在一起，但是可瞭解到的是其他實施例可包括將外側邊 緣201束缚在一起的其他方法。 現在參照第4圖，其繪示本發明裝置之—實施例的一内 纖維魅103的一透視圖。在此實施例中’内纖維魅1〇3已被 捲成或疊成有一窄端401及一寬端402的約略為—圓錐體的 形狀。内纖維氈103可以此一形狀插入外纖維氈1〇2中以形 成過濾器匣101。在一實施例中，内纖維氈1〇3捲撓的方式 為圓錐體窄端401處的内纖維氈1〇3的一外段4〇3與圓錐體 窄端4〇1處的内纖維氈103的一内段404重疊。在一實施例 中，外段403的一部分可被固定到内段404的一部分上。 現在參照第5圖，其繪示本發明裝置之一實施例的一内 纖維s€ 103的一俯視圖。在此實施例中，内纖維範1 被繪 示為展開的。外段403大致由一陰影區域表示且包括一部分 的右邊緣506及一部分的下邊緣502。内段4〇4大致由一交叉 格線區域表示且包括一部分的左邊緣5〇7及一部分的下邊 緣502。在此實施例中，藉由使外段4〇3與内段4〇4重疊使得 外段403朝上一面的一區域與内段404底面上的一區域重 疊，内纖維氈103可被捲成一圓錐體。由於此一捲繞，内纖 維氈103的下邊緣5〇2在該圓錐體的窄端4〇1且内纖維氈1〇3 的上邊緣504在該圓錐體的寬端402。在一實施例中，外段 201200715 403及内段403彼此貼附。在一實施例中，右邊緣506之長度 約為3.9英寸或9.9公分，下邊緣502的長度約為7.5英寸或19 公分，且該内纖維氈的厚度（圖未示）約為0.125英寸或0318 公分。 在此實施例中，内纖維氈103包括一孔505。孔505可用 以將内纖維氈103的一部分固定到一排放減少裝置的本體 上。然而，可瞭解到的是，其他實施例可利用其他方法將 内纖維氈103或過濾器匣101的一部分固定到一排放減少裝 置之本體上而不需包含孔505。 現在參照第6圖，其繪示本發明裝置之一實施例的二纖 維氈的一端視圖。在此實施例中，内纖維氈103已被捲繞或 折疊使得外段403與内段404重疊。除此之外，内纖維氈1〇3 之圓錐體的窄端401已被插入外纖維氈102中。在此實施例 中，内纖維氈103的一部分外段403已被縫合601到外纖維氈 102的一部分圆柱體上。然而，在此實施例中，内纖維氈1〇3 之内段404還未被縫合，且因此，仍能夠在外纖維氈1〇2之 圓柱體内移動。雖然在此實施例中，一部分的外段403已被 縫合601到外纖維氈1〇2之一部分圓柱體上，但是可瞭解到 的是其他實施例可包括用以將該等部分束缚在一起的其他 方法，諸如’舉例而言，藉由使用一黏合劑或一黏扣帶。 在另一實施例中，内纖維氈103之圓錐體之寬端402或接近 寬端的内纖維氈103的一部分可被束缚到外纖維氈102上。 例如’内纖維氈103之右邊緣506及上邊緣504附近的一部分 内纖維氈103可被束缚至外纖維氈1〇2上。 201200715 現在參照第7圖，其繪示一本發明裝置之一實施例在一 排放減少裝置701内的一側視圖。在此實施例中，過濾器匣 101已被置於一排放減少裝置701的本體中。排放減少裝置 701已被附接到一排氣管702的端部且廢氣108被繪示為離 開排氣管702，進入過濾器匣1(H，且離開過濾器匣101及排 放減少裝置701。内纖維氈103位於外纖維氈102内，使得内 纖維氈103之窄端401相對於排放管702位於遠端且寬端402 相對於排放管702位於近端。在此實施例中，如圖所示，内 纖維氈103之窄端401之直徑被繪示為已因廢氣流108的壓 力而被擴大。 熟於此技者將瞭解到的是，本發明並不受限於上文中 所特別繪示及描述之内容且其他實施例可落入後附申請專 利範圍所定義的本發明精神及範圍内。 C圖式簡單說明：！ 第1圖繪示本發明裝置之一實施例的二纖維氈的一透 視圖， 第2圖繪示本發明裝置之一實施例的一外纖維氈的一 端視圖； 第3圖繪示本發明裝置之另一實施例的一外纖維氈的 一端視圖； 第4圖繪示本發明裝置之一實施例的一内纖維氈的一 透視圖； 第5圖繪示本發明裝置之一實施例的一内纖維氈的一 俯視圖； 201200715 第6圖繪示本發明裝置之一實施例的二纖維氈的一端 視圖；以及 第7圖繪示一排放減少裝置内的本發明裝置之一實施 例的一側視圆。 【主要元件符號說明】 101...過濾器匣 402.. •寬端 102...外纖維氈 403" .外段 103...内纖維氈 404.. .内段 104...金屬絲網材料 502·· .下邊緣 105...外纖維氈之圓柱體的長度 504·· ..上邊緣 106...外纖維蜜ί之圓柱體的直徑 505...孔 107...長度 506·. .右邊緣 108...廢氣流/廢氣 507·. .左邊緣 201...外側邊緣 601.. 縫合 202…縫 701...排放減少裝置 203...外纖維氈的厚度 702.. ..排氣管 401…窄端 10201200715 VI. INSTRUCTIONS OF THE INVENTION: Technical Field of the Invention of the Invention The present invention relates to a movable filter for use in a discharge reduction device. BACKGROUND OF THE INVENTION The present invention relates generally to filter cartridges and, more particularly, to removable filter cartridges for use in emission reduction devices. The emission reduction device can be placed on the exhaust pipe to treat the exhaust gas discharged from the internal combustion engine. For example, the emission reduction device can be placed at the end of the exhaust pipe of automotive and industrial equipment. A discharge reduction device can include one or more filter cartridges. The filter 匣 assists in the treatment of exhaust gases. One of the removable types of filters for the emission reduction device has many advantages which will be apparent from the following detailed description and the accompanying drawings. SUMMARY OF THE INVENTION A preferred embodiment of the present invention includes a removable filter cartridge for a discharge reduction device. In one embodiment, the filter cartridge can be inserted into the body of a discharge reduction device such that, in operation, at least some of the exhaust gas passing through the discharge reduction device must also pass through at least a portion of the transition vessel. In one embodiment, the removable filter cartridge comprises an outer fiber mat and an inner fiber mat. The shape of the outer fiber mat may approximate the shape of a cylinder and the shape of the inner fiber mat may approximate the shape of a cone. In addition to this 201200715, the narrow end of the cone can be inserted into the cylinder such that the inner fiber is substantially contained within the outer fiber mat. In one embodiment, the removable filter cartridge can include an outer fiber mat that is approximately cylindrical and a folded inner fiber mat. The inner fiber mat can be substantially glutinous in the outer fiber view. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view of a second fiber mat of an embodiment of the apparatus of the present invention; Figure 2 is a perspective view of an outer fiber mat of an embodiment of the apparatus of the present invention; An end view of an outer fiber mat showing another embodiment of the apparatus of the present invention; FIG. 4 is a perspective view of an inner fiber mat of an embodiment of the apparatus of the present invention; and FIG. 5 is a view of one of the apparatus of the present invention. A top view of an inner fiber mat of an embodiment; FIG. 6 is an end view of a second fiber mat of an embodiment of the apparatus of the present invention; and FIG. 7 illustrates an embodiment of the apparatus of the present invention in a discharge reducing apparatus a side view. C. Embodiment 3 Detailed Description A preferred embodiment of the present invention includes a removable filter cartridge for a discharge reduction device. In an embodiment, the filter 匣 can be inserted into a body of the less-discharged 201200715 less-discharge device 'so that the emission reduction device is in operation' at least some of the exhaust gas passing through the emission reduction device must also pass through at least a portion of the filter 匣. According to various exemplary embodiments, the type of the emission reduction device may be as described in the U.S. Patent Application Publication No. 2008/0053068, which is entitled "(10)? The entire contents of the application are hereby incorporated by reference herein in its entirety in its entirety in the the the the the the the the the the the the the the the the The filter cartridge can be removed at any time, for example, when the filter is changed or filled during use to replace the gas, the controller. In an embodiment, the filter cartridge may comprise a light colored material such as yellow or white so that the residue collected during use of the filter cartridge can be easily found to determine when to replace or clean the filter. The purpose of hiding. Referring now to Figure 1, a side view of an embodiment of the apparatus of the present invention, J-fiber mat, is illustrated. In this embodiment, the filter 匣1〇1 includes a bismuth, a bismuth, and an outer fiber formed by a shape of a hollow cylinder, and a cylinder of the outer granules of the outer fiber. The inner fiber of the body is 1 〇3. These fiber mats can be made of any material that can withstand the heat and pressure of the exhaust gases. Exemplary materials include an aromatic polyamine, a meta-aryl polyamine, a polyamine, a polyphenylene sulfide, a pair of benzene-u, 4-oxadiazole, polytetrafluoroethylene, and one of basalt. A combination of more or more. In one embodiment, the surface of the outer fiber mat 102 can be reinforced with a protective screen. For example, the surface of the outer fiber mat 1 2 may be coated with a protective layer, covered or treated to enhance the filtration performance of the transition 匣 10 1 or to strengthen the structural shape of the outer fiber 102. In Fig. 1, for example, the surface of the outer fiber charm 2 is shown as being covered by a wire mesh material 1〇4. A cover, such as wire mesh material 104, provides structural integrity to the outer fiber felt 1 2 cylindrical shape without significantly increasing the resistance of the outer fiber mat 102 to the exhaust stream 1 〇 8. In one embodiment, the length of the cylinder of the outer fiber 鉱1〇2 is about 3-9 inches or 9.9 cm. In other embodiments, the length of the cylinder of the outer fiber mat 1 2 may be in the range of 3.5 inches to 4 inches or 8.9 cm to 10.2 cm. In one embodiment, the cylinder 106 of the outer fiber mat 102 has a diameter 106 of about 2 25 inches or 5.7 centimeters. In one embodiment, when the inner fiber mat 1〇3 is substantially inserted into the cylinder of the outer fiber mat 102, the inner fiber mat 1〇3 extends to the outside of the outer fiber mat 102' beyond the outer fiber mat 1〇2 about 〇5 A length of 107 inches or inches of 公3 cm. Referring now to Figure 2, there is shown an end view of an outer fiber 102 of one embodiment of the apparatus of the present invention. In this embodiment, the outer side edges 201 of a length of outer fiber are folded and stitched together 202 to form a stack of seams and the stitches 202 are inside the cylinder of the outer fiber mat 1〇2. While the outer edge 201 of the length is illustrated in this embodiment as stitching 202 together, it will be appreciated that other embodiments may include other methods of tying the edges together, such as, for example, borrowing Use a binder or a Velcro tape. In addition, in an alternative embodiment not shown, a second outer edge 201 of a length of outer fiber bristles 1 〇 2 can be folded up and bound together to form a stitch, the stitched stitch 202 being in the outer fiber The outer part of the cylinder of the felt 1〇2. In one embodiment, the outer fiber mat 102 has a thickness 203 of about 0-125 inches or 0.318 centimeters. 201200715 Referring now to Figure 3, there is shown an end view of an outer fiber drum 102 of another embodiment of the apparatus of the present invention. In this embodiment, the two outer edges 201 of a length of outer fiber fly 1 〇 2 have been overlapped and stitched 202 together to form a private seam. While the outer edge 2〇1 of the segment is shown green in the embodiment as the seam 202, it will be appreciated that other embodiments may include other methods of tethering the outer edge 201 together. Referring now to Figure 4, there is shown a perspective view of an inner fiber charm 103 of an embodiment of the apparatus of the present invention. In this embodiment, the inner fiber glare 1 〇 3 has been wound or laminated into a roughly-conical shape having a narrow end 401 and a wide end 402. The inner fiber mat 103 can be inserted into the outer fiber mat 1 2 in this shape to form the filter crucible 101. In one embodiment, the inner fiber mat 1〇3 is wound by an outer section 4〇3 of the inner fiber mat 1〇3 at the narrow end 401 of the cone and an inner fiber mat at the narrow end 4〇1 of the cone. An inner segment 404 of 103 overlaps. In an embodiment, a portion of the outer segment 403 can be secured to a portion of the inner segment 404. Referring now to Figure 5, there is shown a top plan view of an inner fiber s € 103 of one embodiment of the apparatus of the present invention. In this embodiment, the inner fiber 1 is shown as being unfolded. The outer segment 403 is generally indicated by a shaded region and includes a portion of the right edge 506 and a portion of the lower edge 502. The inner section 4〇4 is generally represented by a cross-hatched area and includes a portion of the left edge 5〇7 and a portion of the lower edge 502. In this embodiment, the inner fiber mat 103 can be rolled into one by overlapping the outer portion 4〇3 with the inner portion 4〇4 such that an area of the upper side of the outer section 403 overlaps with an area of the bottom surface of the inner section 404. Cone. Due to this winding, the lower edge 5〇2 of the inner fiber felt 103 is at the narrow end 4〇1 of the cone and the upper edge 504 of the inner fiber mat 1〇3 is at the wide end 402 of the cone. In an embodiment, the outer segment 201200715 403 and the inner segment 403 are attached to each other. In one embodiment, the right edge 506 has a length of about 3.9 inches or 9.9 centimeters, the lower edge 502 has a length of about 7.5 inches or 19 centimeters, and the inner fiber mat has a thickness (not shown) of about 0.125 inches or 0318. Centimeters. In this embodiment, the inner fiber mat 103 includes a hole 505. Aperture 505 can be used to secure a portion of inner fiber mat 103 to the body of a discharge reduction device. However, it will be appreciated that other embodiments may utilize other methods to secure a portion of the inner fiber mat 103 or filter cartridge 101 to the body of a discharge reduction device without the need for apertures 505. Referring now to Figure 6, there is shown an end view of a two-fiber mat of one embodiment of the apparatus of the present invention. In this embodiment, the inner fiber mat 103 has been wound or folded such that the outer segment 403 overlaps the inner segment 404. In addition to this, the narrow end 401 of the cone of the inner fiber mat 1〇3 has been inserted into the outer fiber mat 102. In this embodiment, a portion of the outer section 403 of the inner fiber mat 103 has been stitched 601 to a portion of the cylinder of the outer fiber mat 102. However, in this embodiment, the inner section 404 of the inner fiber mat 1〇3 has not been sewn, and therefore, can still move within the cylinder of the outer fiber mat 1〇2. Although in this embodiment a portion of the outer segment 403 has been stitched 601 to a portion of the outer fiber mat 1 〇 2 cylinder, it will be appreciated that other embodiments may include tethering the portions together. Other methods, such as 'for example, by using a binder or a fastening strip. In another embodiment, the wide end 402 of the cone of the inner fiber mat 103 or a portion of the inner fiber mat 103 near the wide end may be bound to the outer fiber mat 102. For example, the right edge 506 of the inner fiber mat 103 and a portion of the inner fiber mat 103 near the upper edge 504 can be bound to the outer fiber mat 1 2 . 201200715 Referring now to Figure 7, a side view of an embodiment of an apparatus of the present invention in a discharge reduction device 701 is illustrated. In this embodiment, the filter cartridge 101 has been placed in the body of a discharge reduction device 701. The emission reduction device 701 has been attached to the end of an exhaust pipe 702 and the exhaust gas 108 is depicted as exiting the exhaust pipe 702, entering the filter crucible 1 (H, and exiting the filter crucible 101 and the emission reduction device 701). The inner fiber mat 103 is positioned within the outer fiber mat 102 such that the narrow end 401 of the inner fiber mat 103 is distally located relative to the discharge tube 702 and the wide end 402 is proximally opposite the discharge tube 702. In this embodiment, as shown The diameter of the narrow end 401 of the inner fiber mat 103 is shown as having been enlarged by the pressure of the exhaust stream 108. It will be appreciated by those skilled in the art that the present invention is not limited to the above. The contents of the present invention and other embodiments may be within the spirit and scope of the present invention as defined by the appended claims. Brief Description of the Drawings: Figure 1 shows a two-fiber mat of one embodiment of the apparatus of the present invention. 1 is a perspective view of an outer fiber mat of an embodiment of the apparatus of the present invention; and FIG. 3 is an end view of an outer fiber mat of another embodiment of the apparatus of the present invention; The figure shows an inner fiber felt of an embodiment of the device of the present invention. a perspective view; FIG. 5 is a top plan view of an inner fiber mat of an embodiment of the apparatus of the present invention; 201200715 FIG. 6 is an end view of a second fiber mat of an embodiment of the apparatus of the present invention; and FIG. A side view circle of an embodiment of the device of the present invention in a discharge reducing device is shown. [Main component symbol description] 101...Filter 匣 402.. • Wide end 102... outer fiber felt 403" . Outer section 103... inner fiber mat 404.. inner section 104... wire mesh material 502··. lower edge 105... outer fiber felt cylinder length 504··. upper edge 106. The outer diameter of the outer diameter of the cylinder is 505... hole 107...length 506·.. right edge 108...exhaust flow/exhaust gas 507·. left edge 201...outer edge 601.. Sewing 202...slot 701...emission reduction device 203...thickness of outer fiber mat 702.....exhaust pipe 401...narrow end 10

Claims (1)

201200715 七、申請專利範圍： L —種用於一排放減少裝置的可移式過濾器匣，其包含： 一外纖維氈；及 —内纖維氈； 其中該外纖維氈約略為一圓柱體的形狀； 其中該内纖維氈約略為一圓錐體的形狀；且 其中該圓錐體的一窄端可被插入該圓柱體中，使得 5亥内纖維氈實質上容納在該外纖維氈内。 2.如申請專利範圍第1項所述之可移式過濾器匣，其中該 外纖維氈及該内纖維氈中至少一者包括以下一或多個 的一組合：一芳香族聚醯胺、一間位芳香族聚醯胺、一 聚醯胺、一聚苯硫、一對苯— H4-噁二唑 '聚四氟乙烯 及玄武岩。 3·如申請專利範圍第丨項所述之可移式過濾器匣，其中該 外纖維氈及該内纖維氈中至少一者包括一淺色材料。 4·如申請專利範圍第丨項所述之可移式過濾器匣，其中該 外纖維氈的至少一部分表面用一保護層塗佈、覆蓋或處 理。 5·如申請專利範圍第1項所述之可移式過濾器匣，其中該 外纖維範之至少一部分表面覆蓋一金屬絲網材料。 6.如申請專利範圍第1項所述之可移式過濾器匣，其中該 外纖維氈之長度介於8.9公分與10.2公分之間。 7·如申請專利範圍第1項所述之可移式過濾器匣，其中該 圓柱體之直徑約為5.7公分。 201200715 8.如申4專利㈣第㈣所述之可移式過濾Μ，其中該 段外纖維&的二外側邊緣已被束缚在一起。 9·如申w專利圍第！項所述之可移式過滤器㊣，其中該 段外纖維S€的二外側邊緣已被束缚在—起，使得該等束 4在一起的外側邊緣延伸在該外纖維氈之該圓柱體内 部。 10. 如申請專利範圍第i項所述之可移式過渡器匣其中該 外纖維氈及該内纖維氈中至少一者的厚度約為0 318公 分。 11. 如申請專利範圍第〖項所述之可移式過濾器匣其中該 段外纖維氈的二外側邊緣重疊且被束缚在一起。 12. 如申請專利範圍第丨項所述之可移式過濾器匣，其中該 内纖維氈的一外段與該内纖維氈的一内段重疊。 13. 如申請專利範圍第1項所述之可移式過濾器匣，其中該 内纖維氈的一外段及一内段在該窄端彼此束缚。 14. 如申請專利範圍第1項所述之可移式過濾器匣，其中該 内纖維鼓之該圓錐形藉由捲繞該内纖維魏的一外段及 一内段使得該外段與該内段重疊而形成。 15. 如申請專利範圍第1項所述之可移式過濾器匣，其中該 内纖維f毛之s玄圓錐形藉由捲繞該内纖維鼓的一外段與 該内纖維氈的一内段使得該外段與該内段重疊且該外 段及該内段的一部分彼此束缚而形成。 16. 如申請專利範圍第1項所述之可移式過濾器匣，其中該 内纖維氈包括一孔用以將該内纖維氈的一部分固定至 12 201200715 5亥排放減少裝置。 17·如申請專利範圍第！項所述之可移式過遽龍，其中一 部分之該内纖維氈被束缚至一部分之該外纖維氈。 18. 如申請專利範圍第i項所述之可移式過遽器匿，其中該 内纖維鼓的-外段的一部分被束缚至該外纖維畫毛的一 4分上且該内纖維氈的一内段的一部分能夠在該外纖 維氈内移動。 19. 如申請專利範圍第】項所述之可移式過據器匿，其中該 過據器匣容納在賴放減少裝置内，使得㈣纖維鼓之 5亥窄端相對於一排氣管位於遠端且該内纖維氈之該寬 端相對於該排氣管位於近端。 20·如申請專利範圍第i項所述之可移式過濾器匿，其中該 窄端之直徑可隨曝露於廢氣流之壓力而增大。 21·-種用於-排放減少裝置的可移式過渡隨，其包含： 一外纖維氈；及 —内纖維鼓； 其中该外纖維氈為圓柱形且該内纖維氈被摺疊且 貫質上容納在該外纖維鼓内。 22·如申請專利範m第21項所述之可移式财隨，其中該 外纖維$€及該内纖雜中至少—者包括以下—或多個 的—組合：一芳香族聚醯胺、—間位芳香族聚酿胺、一 聚酿月女、-聚苯硫、—對苯·惡二唾 '聚四氣乙稀 及玄武岩。 如申6月專利範圍第21項所述之可移式過渡器g，其中該 13 201200715 外纖維熟及該内纖維中至少一者包括一淺色材料。 24. 如申請專利範圍第21項所述之可移式過滤器匣，其中該 外纖維魏之至少一部分表面用一保護層塗佈、覆蓋或處 理。 25. 如申請專利範圍第21項所述之可移式過濾器匣，其中該 外纖維熟之至少一部分表面覆蓋一金屬絲網材料。 26. 如申請專利範圍第21項所述之可移式過濾器匣，其中該 外纖維氈之長度介於8.9公分與10.2公分之間。 27. 如申請專利範圍第21項所述之可移式過濾器匣，其中該 外纖維氈之該圆柱體形狀之直徑約為5.7公分。 28. 如申請專利範圍第21項所述之可移式過濾器匣，其中該 段外纖維氈的二外側邊緣已被束缚在一起。 29. 如申請專利範圍第21項所述之可移式過濾器匣，其中該 段外纖維氈的二外側邊緣已被束缚在一起，使得該等束 缚在一起的外側邊緣延伸在該外纖維氈之該圓柱體内 部° 30. 如申請專利範圍第21項所述之可移式過濾器匣，其中該 外纖維氈及該内纖維氈中至少一者的厚度約為0.318公 分。 31. 如申請專利範圍第21項所述之可移式過濾器匣，其中該 段外纖維氈的二外側邊緣重疊且被束缚在一起。 32. 如申請專利範圍第21項所述之可移式過濾器匣，其中該 内纖維氈的一外段與該内纖維氈的一内段重疊。 33. 如申請專利範圍第21項所述之可移式過濾器匣，其中該 14 201200715 内纖維氈的一外段及該内纖維氈的一内段彼此束缚。 34. 如申請專利範圍第21項所述之可移式過濾器匣，其中該 内纖維氈藉由使該内纖維氈的一外段與該内纖維氈的 一内段重疊而交疊。 35. 如申請專利範圍第21項所述之可移式過濾器匣，其中該 内纖維氈藉由使該内纖維氈的一外段與該内纖維氈的 一内段重疊而交疊且其中該内纖維氈之一部分外段及 該内纖維氈之一部分内段彼此束缚。 36. 如申請專利範圍第21項所述之可移式過濾器匣，其中該 内纖維氈包括一孔用以將一部分的該内纖維氈固定至 該排放減少裝置。 37. 如申請專利範圍第21項所述之可移式過濾器匣，其中一 部分的該内纖維氈被束缚至一部分之該外纖維氈。 38. 如申請專利範圍第21項所述之可移式過濾器匣，其中該 内纖維氈的一外段的一部分被束缚至該外纖維氈的一 部分，且該内纖維氈的一内段的一部分能夠在該外纖維 盲毛内移動。 39. 如申請專利範圍第21項所述之可移式過濾器匣，其中該 内纖維氈大體為有一窄端及一寬端的圓錐形。 40. 如申請專利範圍第21項所述之可移式過濾器匣，其中該 内纖維氈大體為有一窄端及一寬端的圓錐形且其中該 過濾器匣容納在該排放減少裝置内，使得該内纖維氈之 該窄端相對於一排氣管位於遠端且該内纖維氈之該寬 端相對於該排氣管位於近端。 15 201200715 41.如申請專利範圍第21項所述之可移式過濾器匣，其中該 内纖維氈大體為有一窄端及一寬端的圓錐形，其中該過 濾器匣容納在該排放減少裝置内，使得該内纖維氈之該 窄端相對於一排氣管位於遠端且該内纖維氈之該寬端 相對於該排氣管位於近端，且其中該窄端之直徑可隨著 曝露於廢氣流之壓力而增大。 16201200715 VII. Patent application scope: L - a movable filter cartridge for a discharge reducing device, comprising: an outer fiber mat; and an inner fiber mat; wherein the outer fiber felt is approximately in the shape of a cylinder Wherein the inner fiber mat is approximately in the shape of a cone; and wherein a narrow end of the cone can be inserted into the cylinder such that the fiber mat within 5 ha is substantially contained within the outer fiber mat. 2. The removable filter cartridge of claim 1, wherein at least one of the outer fiber mat and the inner fiber mat comprises a combination of one or more of the following: an aromatic polyamine, An aromatic polyamine, a polyamine, a polyphenylene sulfide, a pair of benzene-H4-oxadiazole' polytetrafluoroethylene and basalt. 3. The removable filter cartridge of claim 3, wherein at least one of the outer fiber mat and the inner fiber mat comprises a light colored material. 4. The removable filter cartridge of claim 2, wherein at least a portion of the surface of the outer fiber mat is coated, covered or treated with a protective layer. 5. The removable filter cartridge of claim 1, wherein at least a portion of the surface of the outer fiber is covered with a wire mesh material. 6. The removable filter cartridge of claim 1, wherein the outer fiber mat has a length of between 8.9 cm and 10.2 cm. 7. The movable filter cartridge of claim 1, wherein the cylinder has a diameter of about 5.7 cm. 201200715 8. The movable filter cartridge of (4), wherein the outer edges of the outer fibers & are bound together. 9·If you apply for patent w The movable filter of the item is positive, wherein the outer edges of the outer fibers S are bound together such that the outer edges of the bundles 4 together extend inside the cylinder of the outer fiber mat . 10. The transferable transition device of claim i, wherein at least one of the outer fiber mat and the inner fiber mat has a thickness of about 0 318 cm. 11. The movable filter of claim 1, wherein the outer outer edges of the outer fiber mat overlap and are bound together. 12. The removable filter cartridge of claim 2, wherein an outer segment of the inner fiber mat overlaps an inner segment of the inner fiber mat. 13. The removable filter cartridge of claim 1, wherein an outer segment and an inner segment of the inner fiber mat are bound to each other at the narrow end. 14. The movable filter cartridge of claim 1, wherein the conical shape of the inner fiber drum is such that the outer segment and the outer segment are wound by winding an outer segment and an inner segment of the inner fiber The inner segments are formed by overlapping. 15. The movable filter cartridge of claim 1, wherein the inner fiber f s stellate conical shape is obtained by winding an outer segment of the inner fiber drum and one inner fiber mat The segment is formed such that the outer segment overlaps the inner segment and the outer segment and a portion of the inner segment are bound to each other. 16. The removable filter cartridge of claim 1, wherein the inner fiber mat includes a hole for securing a portion of the inner fiber mat to the 12 201200715 5 emission reduction device. 17·If you apply for a patent scope! The movable fiber tampon described in the section, wherein a portion of the inner fiber mat is bound to a portion of the outer fiber mat. 18. The portable filter of claim i, wherein a portion of the outer portion of the inner fiber drum is bound to a quarter of the outer fiber bristles and the inner fiber felt A portion of an inner segment is movable within the outer fiber mat. 19. The movable instrument according to claim 7, wherein the filter cartridge is housed in the drip reduction device such that (4) the narrow end of the fiber drum is located relative to an exhaust pipe The distal end and the wide end of the inner fiber mat is located at a proximal end relative to the exhaust pipe. 20. The removable filter of claim i, wherein the diameter of the narrow end increases with exposure to the pressure of the exhaust stream. 21·- a movable transition for a discharge reduction device comprising: an outer fiber mat; and an inner fiber drum; wherein the outer fiber mat is cylindrical and the inner fiber mat is folded and permeated It is housed in the outer fiber drum. 22. The portable financial method of claim 21, wherein the outer fiber $ and at least one of the inner fibers comprises the following - or a plurality of combinations: an aromatic polyamine , - meta-aromatic polyamine, a poly-branched moon, - polyphenyl sulphide, - benzene, dysentery, polytetraethylene and basalt. The movable transition device g of claim 21, wherein the at least one of the outer fibers and the inner fibers comprise a light colored material. 24. The removable filter cartridge of claim 21, wherein at least a portion of the surface of the outer fiber is coated, covered or treated with a protective layer. 25. The removable filter cartridge of claim 21, wherein at least a portion of the surface of the outer fiber is covered with a wire mesh material. 26. The removable filter cartridge of claim 21, wherein the outer fiber mat has a length of between 8.9 cm and 10.2 cm. 27. The removable filter cartridge of claim 21, wherein the cylindrical shape of the outer fiber mat has a diameter of about 5.7 cm. 28. The removable filter cartridge of claim 21, wherein the outer outer edges of the outer fiber mat have been bound together. 29. The removable filter cartridge of claim 21, wherein the outer outer edges of the outer fibrous mat have been tethered together such that the outer edges of the bound together extend over the outer fibrous mat The movable filter cartridge of claim 21, wherein at least one of the outer fiber mat and the inner fiber mat has a thickness of about 0.318 cm. 31. The removable filter cartridge of claim 21, wherein the outer outer edges of the outer fiber mat overlap and are bound together. 32. The removable filter cartridge of claim 21, wherein an outer segment of the inner fiber mat overlaps an inner segment of the inner fiber mat. 33. The removable filter cartridge of claim 21, wherein an outer segment of the fiber mat in the inner layer of the 2012 201215 and an inner segment of the inner fiber mat are bound to each other. 34. The removable filter cartridge of claim 21, wherein the inner fiber mat overlaps by overlapping an outer segment of the inner fiber mat with an inner segment of the inner fiber mat. 35. The removable filter cartridge of claim 21, wherein the inner fiber mat overlaps by overlapping an outer segment of the inner fiber mat with an inner segment of the inner fiber mat The outer portion of one of the inner fiber mats and the inner portion of one of the inner fiber mats are bound to each other. 36. The removable filter cartridge of claim 21, wherein the inner fiber mat includes a hole for securing a portion of the inner fiber mat to the discharge reducing device. 37. The removable filter cartridge of claim 21, wherein a portion of the inner fiber mat is bound to a portion of the outer fiber mat. 38. The removable filter cartridge of claim 21, wherein a portion of an outer segment of the inner fiber mat is bound to a portion of the outer fiber mat and an inner segment of the inner fiber mat A portion can move within the outer fiber blind hair. 39. The removable filter cartridge of claim 21, wherein the inner fiber mat has a generally conical shape with a narrow end and a wide end. 40. The removable filter cartridge of claim 21, wherein the inner fiber mat is substantially conical with a narrow end and a wide end and wherein the filter cartridge is housed within the emission reduction device such that The narrow end of the inner fiber mat is located distally relative to an exhaust tube and the wide end of the inner fiber mat is proximally opposite the exhaust tube. The movable filter cartridge of claim 21, wherein the inner fiber mat is substantially conical with a narrow end and a wide end, wherein the filter cartridge is housed in the discharge reducing device Having the narrow end of the inner fiber mat at a distal end relative to an exhaust tube and the wide end of the inner fiber mat being proximally positioned relative to the exhaust tube, and wherein the narrow end is diametrically contiguous with The pressure of the exhaust gas flow increases. 16
TW100108082A 2010-03-11 2011-03-10 Removable filter cartridge for emission reduction devices TW201200715A (en)

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Publication number Priority date Publication date Assignee Title
US3675398A (en) * 1970-10-15 1972-07-11 Lawrence P Giarrizzo Exhaust filter attachment
US3871850A (en) * 1973-03-20 1975-03-18 Ethyl Corp Filter element
GB2424599A (en) * 2005-03-29 2006-10-04 Andrew Buchan Whyte An exhaust filter
US7523605B2 (en) * 2005-10-19 2009-04-28 Whitaker Corey D Air filter for a tail pipe
KR20090009233A (en) 2006-05-03 2009-01-22 사버테크 엘.엘.씨. Emission Reduction Devices and Emission Reduction Methods
US7905321B2 (en) * 2007-02-12 2011-03-15 Ballard Iii Ebbin C Inserts for engine exhaust systems

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