TWM299776U - Two-stage engine exhaust reduction device - Google Patents

Two-stage engine exhaust reduction device Download PDF

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Publication number
TWM299776U
TWM299776U TW95202264U TW95202264U TWM299776U TW M299776 U TWM299776 U TW M299776U TW 95202264 U TW95202264 U TW 95202264U TW 95202264 U TW95202264 U TW 95202264U TW M299776 U TWM299776 U TW M299776U
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Taiwan
Prior art keywords
catalyst
nozzle
engine
exhaust gas
exhaust
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TW95202264U
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Chinese (zh)
Inventor
Jr-Shing Liu
Shu-Ren Yu
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Jr-Shing Liu
Shu-Ren Yu
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Application filed by Jr-Shing Liu, Shu-Ren Yu filed Critical Jr-Shing Liu
Priority to TW95202264U priority Critical patent/TWM299776U/en
Publication of TWM299776U publication Critical patent/TWM299776U/en

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Description

M299776 八、新型說明: 【新型所屬之技彳标領域】 王μ仅八降低機車引 氣裝置’尤指-種可控制排氣管之二擎:放: 量,藉由觸媒有效淨化引擎排放廢氣,並 管安裝蜂巢觸媒所造成引擎馬力的損t 則貝排乳 【先前技#f】 按’ -般習者如中華民國專利公 09310317G號之「在機車排氣管内提昇觸媒淨化^ 化物的方法」,如第8圖所示,係在引擎排氣端6所掏 接的排氣管道60、61内配置有至少一只前段的還原型 觸媒7及至少-只後段的氧化型觸媒8,並將二次空 氣導入於排氣管道6〇、61内,藉以進行下列步驟: (1)進行還原反應··利用至少披覆有铑金(Rh)之前 段的還原型_ 7淨化來自引擎排氣端6排人排氣管 道60内的前段廢氣,將空燃比(A/F)$147之前段廢 氣中的氮氧化物(N0X)還原成無㈣氮氣(n2)及^氣 (〇2); (2)導入二次空氣··於二次空氣導入口 62以引擎 負壓或以電動泵自外界強制導入二次空氣於上述還原 型觸媒7後方的排氣管道61内,供給足量氧氣(〇2)進 入後#又廢氣中,以提高後段廢氣的空燃比(Α/ρ)> 14/7 ; M299776 / (2)進仃氧化反應:利用至少披覆有鉑(pt)及鈀(pd) 之後&的氧化型觸媒8淨化來自上述的後段廢氣,將 空燃比(A/F)>14·7之後段廢氣中殘留的-氧化碳(C0) 及碳氫化合物(HC)氧化成無害的二氧化碳(c〇2)及水 (Ηβ),並排放上述廢氣至外界。 雖然上述之習用排氣管内提昇觸媒淨化氮氧化 :但疋由於該二次空氣導入口時係以引擎負壓或 以!強制導入二次空氣;而單純以引擎負壓導入 常!造成空氣量之不足,而使該氧化型 At .、:/、仵大1之空氣進行較佳之後段廢氣淨化功 二:以電動栗導入二次空氣時,雖可改善空氣量不 位晉、\ c加裝電動料不僅要另外安排其設置之 梦雷=必須提供—外部電力供電動泵使用,導致加 及唯癸成本提高、結構複雜,且電㈣之組裝 及維修不易專缺點。 【新型内容】 2作之主要目的係在於,可藉由第—單向止 閥、喷鳴(N〇zzie)及第一。0 ;乐—早向止回閥配合第一、二 媒,而可控制排氣管之二 一 右妗凃几2丨微 人工乱進虱 垔,猎由觸 排放廢t,纟簡償魏^裝蜂巢j 媒所造成引擎馬力的損失。 女我蜂巢) M299776 為達上述之目的,本創作係一種兩段 引擎排放廢氣裝置,係可設置於機車51擎之排氣总 Ϊ二包Π一:設置於排氣管上且與該排氣管連通: f 一早向止回閥’· -與排氣管連通且設置於鄰近第一 閥觸:之第一觸媒;一與排氣管連通且設置 第一側之喷嘴,該嘴嘴上係連通設有一 第-早向止回閥;以及至少―與排氣管連通且 鄰近噴嘴一側之第二觸媒。 又; 【實施方式】 請參閱『第U圖』所示,係本創作 示忍圖。如圖所示:本創作係-種兩段式降低 擎排放廢氣裝置,係可設置於機車引擎5之排氣管51 上,其係由一第一單向止回閥 、 鳴(N〇zzle)3以及至少一第二 、 噴 氣管51之二次*氣進老士旦」所構成,可控制摒 m㈣觸財效淨化引¥ 擎::::失並且補償排氣管安裝蜂一 —上述所提之第-單向止回闊J係設置於上 =二,^_管51連通,並 U間1上叹置有一調整部11。 觸媒2係與該排氣管51連通,且設置於鄰 述第一單向止回閥1之-側,而該第-觸媒2至 M299776 少被覆有铑(Rh)、鉑(Pt)及鈀(Pd)至少其中之一,第一 單向止回閥1導入二次空氣,可同時淨化引擎5廢氣 中部分之一氧化碳(C0)及碳氫化合物(Hc),氧化成無 害的二氧化碳(C〇2)及水(H2〇),並可同時淨化引擎5 廢氣中之氮氧化物(ΝΟχ) ’還原成無害的氮氣及氧 氣(〇2),或是氮氧化物(N0X)直接與一氧化碳(c〇)及碳 氮化合物(HC)進行氧化還原反應,轉換成無害的氮氣 (N2)、二氧化碳(C〇2)及水(H2〇),所以第一觸媒2作為 氧化及還原觸媒之用。 該喷嘴(N〇ZZle)3係與該排氣管51連通,且設置 於鄰近上述第一觸媒2之一側,而該喷嘴(N〇zzle)°3上 係連通設有一第二單向止回閥3卜該第二單向止回閥 31係設置有一調整部311。 該第二觸媒4係與該排氣管51連通,且設置於鄰 近上述喷嘴3之一側,該第二觸媒4至少被覆有鉑㈣ 或飽(Pd)其中之可淨化引擎5廢氣中之—氧化碳 (C〇)及碳氫化合物(HC),氧化成無害的二氧化碳(C〇2) = _),作為氧化觸媒之用。如是,藉由上述之結 構構成—全新之兩段輕域車引擎排放廢氣裝置。 音圖::第ίβ圖』所示,係本創作之另-架構示 藤a ^所7F •本創作係一種兩段式降低機車引擎 係可設置於機車5丨擎5之排氣管” “孔S 51係連接第一觸媒2、嘴嘴(N〇ZZJe)3 M299776 以及至少一第二觸媒4,進而 低機車引擎排放廢氣裝£。 、另—全新兩段式降 規茶閱『第2及第3圖 ^ 噴嘴之剖面狀態示意圖及本創:二:分別為本創作 示意圖。如圖所示:本創作之喑::噴嘴之剖面狀態 別朝開口設置一擴口部32、3 Θ部之二端係分M299776 VIII, new description: [New technology belongs to the field of technical standards] Wang μ only eight to reduce the locomotive air bleed device 'especially - the second type of controllable exhaust pipe: put: volume, effective purification of engine emissions by catalyst Exhaust gas, and the damage of the engine horsepower caused by the installation of honeycomb catalysts, then the milk is discharged. [Previous technique #f] According to the general practitioner, such as the Republic of China Patent No. 09310317G, "Improve the catalyst in the exhaust pipe of the locomotive ^ As shown in Fig. 8, at least one front stage reduction catalyst 7 and at least a rear stage oxidation type are disposed in the exhaust ducts 60, 61 to which the engine exhaust end 6 is connected. The catalyst 8 is introduced into the exhaust ducts 6A and 61, and the following steps are performed: (1) Performing a reduction reaction··Reducing type using at least the preceding stage of the sheet metal (Rh) _ 7 Purifying the front exhaust gas from the exhaust pipe 60 of the exhaust pipe of the engine exhausting, reducing the nitrogen oxides (N0X) in the exhaust gas before the air-fuel ratio (A/F) $147 to no (four) nitrogen (n2) and gas ( 〇2); (2) Introducing secondary air · at the secondary air inlet 62 with engine negative pressure or with electric pump The outside air is forced to introduce secondary air into the exhaust duct 61 behind the reducing catalyst 7, and a sufficient amount of oxygen (〇2) is supplied into the exhaust gas to increase the air-fuel ratio (Α/ρ) of the exhaust gas in the latter stage. 14/7 ; M299776 / (2) Oxidation reaction: The oxidizing catalyst 8 coated with at least platinum (pt) and palladium (pd) is used to purify the exhaust gas from the above stage, and the air-fuel ratio (A/) F) The residual carbon monoxide (C0) and hydrocarbon (HC) remaining in the exhaust gas after 14·7 are oxidized into harmless carbon dioxide (c〇2) and water (Ηβ), and the exhaust gas is discharged to the outside. Although the above-mentioned conventional use of the exhaust pipe in the exhaust pipe to purify the nitrogen oxidation: However, due to the secondary air inlet, the engine is negatively pressurized or forced to introduce the secondary air; Insufficient amount of air is caused, and the air of the oxidized type At., :/, and 仵1 is preferably subjected to the exhaust gas purification work of the second stage: when the electric air is introduced into the secondary air, although the amount of air can be improved, \ c Adding electric material not only has to arrange the setting of its own dream mine = must provide - external power supply and power pump use, resulting in increased cost and complex structure, and the assembly and maintenance of electricity (4) is not easy to specialize. [New content] The main purpose of the two is to use the first one-way check valve, the squirting sound (N〇zzie) and the first. 0; Le - early check valve with the first and second media, and can control the exhaust pipe of the second right 妗 几 几 丨 丨 丨 丨 丨 丨 几 几 几 几 猎 猎 猎 猎 猎 猎 猎 猎 猎 猎 猎 猎 猎 猎 猎 猎 猎 猎 猎The loss of engine horsepower caused by the installation of the hive j media. Female I Hive) M299776 For the above purpose, this creation is a two-stage engine exhaust system that can be installed on the locomotive 51 engine's exhaust gas Ϊ two packs: one on the exhaust pipe and the exhaust Pipe communication: f early to the check valve '· - communicating with the exhaust pipe and disposed adjacent to the first valve: the first catalyst; a nozzle communicating with the exhaust pipe and providing the first side, the nozzle A first-early check valve is connected to the communication; and at least a second catalyst that is in communication with the exhaust pipe and adjacent to one side of the nozzle. [Embodiment] Please refer to the "U-picture" for the creation of the picture. As shown in the figure: This creation department is a two-stage reduction engine exhaust system, which can be installed on the exhaust pipe 51 of the locomotive engine 5, which is composed of a first one-way check valve, and sounds (N〇zzle ) 3 and at least one second, the second part of the jet pipe 51 * gas into the old priest", can control 摒m (four) touch the effect of purification purification engine:::: loss and compensation of the exhaust pipe installation bee one - the above The first one-way check wide J series is set on the upper=two, the ^_tube 51 is connected, and the U-zone 1 is provided with an adjustment portion 11. The catalyst 2 is in communication with the exhaust pipe 51 and is disposed on the side of the first one-way check valve 1 , and the first catalysts 2 to M299776 are less covered with rhenium (Rh) and platinum (Pt). And at least one of palladium (Pd), the first one-way check valve 1 introduces secondary air, and simultaneously purifies carbon monoxide (C0) and hydrocarbon (Hc), which are part of the exhaust gas of the engine 5, and oxidizes into harmless carbon dioxide ( C〇2) and water (H2〇), and simultaneously purify the nitrogen oxides (ΝΟχ) in the exhaust gas of the engine 5 to reduce to harmless nitrogen and oxygen (〇2), or nitrogen oxides (N0X) directly with carbon monoxide (c〇) and carbonitrides (HC) undergo oxidation-reduction reactions and are converted into harmless nitrogen (N2), carbon dioxide (C〇2) and water (H2〇), so the first catalyst 2 acts as an oxidation and reduction catalyst. Use. The nozzle (N〇ZZle) 3 is in communication with the exhaust pipe 51, and is disposed adjacent to one side of the first catalyst 2, and the nozzle (N〇zzle)°3 is connected to be provided with a second one-way. The check valve 3 is provided with an adjustment portion 311. The second catalyst 4 is in communication with the exhaust pipe 51 and is disposed adjacent to one side of the nozzle 3, and the second catalyst 4 is covered with at least platinum (four) or saturated (Pd) among the exhaust gases of the purifying engine 5 Carbon monoxide (C〇) and hydrocarbon (HC) are oxidized to harmless carbon dioxide (C〇2) = _) for use as an oxidation catalyst. If so, it consists of the above-mentioned structure - the new two-stage light-duty vehicle engine exhaust system. The sound map:: 第 β 图 , , , , , , , 本 本 本 架构 架构 架构 架构 架构 架构 架构 架构 • • • • • • • • • • • • • • • • • • • • • • • • • • • • • The hole S 51 is connected to the first catalyst 2, the nozzle (N〇ZZJe) 3 M299776 and the at least one second catalyst 4, so that the low locomotive engine discharges the exhaust gas. And another - the new two-stage degraded tea read "2nd and 3rd drawings ^ Schematic diagram of the profile of the nozzle and this creation: 2: respectively, the schematic diagram of the creation. As shown in the figure: The outline of this creation:: the profile state of the nozzle. Do not set a flared part 32, 3

之連接處係具有一較窄之頭部34,:::口_部卢、33 閥31可依所需連通設置於 —單向止回 …為之内部二端係分別:置3_之:二處。另該嘴嘴 〜管S35a、36a,使該擴…== 嘴k二開口,並於二管趙35a、36^ :朝嘴 流道部37a,使哕第-| ^ 十應處形成一 通。 使°亥第一早向止回閥3U流道部…連 …:,目* 4圖』所示’係本創作 悲不忍圖。如圖所示:當本創作 :用狀 於機車引擎5之排氣管51上,當 二係可設置 孫剎田Η丨敬c I ^擎5排出廢氣時, 口 Ρ" $氣口衝力產生的負壓開啟第-單向止 :闊二’使該第一單向止回…入較少之新鮮二次 ㈣α/Μ14.7),使該引擎5廢氣與少量之 2 ;Λ空氣流經作為氧化及還原觸媒用之第-觸媒 而错由第-觸媒2上之雜h)、物)及把㈣至 中之-,可同時淨化引擎5廢氣中部分之 碳(co)及碳氫化合物(HC),氧化成無害的二氧化碳 M299776 (C02)及水(H20),並可同時淨化引擎5廢氣中之氮氧 化物(N0X),還原成無害的氮氣(N2)及氧氣(02),或是 氮氧化物(NOx)直接與一氧化碳(CO)及碳氫化合物 (HC)進行氧化還原反應,轉換成無害的氮氣(Ν2)、二 氧化碳(C〇2)及水(Η20),之後使廢氣中尚未淨化之一 氧化碳(C0)及碳氫化合物(HC)往喷嘴3處流動,利用 氣流流動配合二擴口部32、33及頸部34產生的負壓The connection has a narrower head 34,:::port_lu, 33 valve 31 can be set in accordance with the required connection - one-way check ... for the internal two-end system: set 3_: Two places. In addition, the nozzles - tubes S35a, 36a, so that the expansion ... = = mouth k two openings, and in the second tube Zhao 35a, 36 ^: toward the mouth flow channel portion 37a, so that the first -| ^ ten should form a pass. Let the first sunrise of the ° Hai to the 3U flow channel of the check valve ... ..., the head of the figure * 4 "This is a sorrowful picture. As shown in the figure: When this creation: used on the exhaust pipe 51 of the locomotive engine 5, when the second line can be set up, the Sun Yat-sen, the I c c I ^ 5 5 exhaust gas, the mouth Ρ " $ mouth impulse generated Negative pressure opens the first one-way stop: wide two' makes the first one-way check... into less fresh secondary (four) α / Μ 14.7), so that the engine 5 exhaust gas with a small amount of 2; The first-catalyst for oxidizing and reducing the catalyst is mis-synthesized by the first catalyst 2, and the (four) to the middle, and the carbon (co) and carbon in the exhaust gas of the engine 5 can be simultaneously purified. The hydrogen compound (HC) is oxidized into harmless carbon dioxide M299776 (C02) and water (H20), and simultaneously purifies the nitrogen oxides (N0X) in the exhaust gas of the engine 5 to be reduced to harmless nitrogen (N2) and oxygen (02). , or nitrogen oxides (NOx) directly react with carbon monoxide (CO) and hydrocarbons (HC) to convert to harmless nitrogen (Ν2), carbon dioxide (C〇2) and water (Η20), and then One of the exhaust gas has not been purified, and carbon monoxide (C0) and hydrocarbon (HC) flow to the nozzle 3, and the air flow is used to match the two flared portions 32, 33 and the neck. 34 negative pressure generated

開啟第二單向止回閥31,導入較多之新鮮二次空氣(空 燃比A/F> 14.7),使該廢氣中尚未淨化之一氧化碳 (C0)及碳虱化合物(HC) ’配合大量之新鮮二次空氣流 經作為氧化觸媒用之第二觸媒4,而藉由第二觸媒4 之鉑(Pt)或鈀(Pd)至少其中之一,淨化引擎5廢氣中之 一氧化碳(C0)及碳氫化合物(HC),氧化成無害的二氧 化碳(C〇2)及水(H2〇),並可依實際使用時之所需於第 二觸媒4後方增設另一或一以上之第二觸媒乜,使該 引擎5廢氣中之殘餘-氧化碳(c〇)、碳氫化合物 及氣氧化物(N0X),再次經過淨化,以達到有效淨化 擎5排放廢氣之功效。 —立闻w 不本創作^二使用狀 悲不思圖。如圖所示:本創作於實際使 第二觸媒4與排氣管51連通’並設置 U將 止回間1之後側’而將第一觸媒2與 早向 並設置於鄰近上述嘴嘴3之後側;當引擎5排出連廢通氣 M299776 時,係利用引擎5出氣口衝力產生的負壓開啟第一單 向止回閥1 ,使該第一單向止回閥!藉由調整部n之 調整而導入較多之新鮮二次空氣(空燃比A/f > 14.7),使該廢氣中之一氧化碳((:〇)及碳氫化合物 (HC),配合大量之新鮮二次空氣流經作為氧化觸媒用 之第二觸媒4,而藉由第二觸媒4之鉑(pt)或鈀(Pd)至 少其中之一,淨化引擎5排放廢氣中之一氧化碳(c〇) 及碳氫化合物(HC),氧化成無害的二氧化碳(c〇2)及水 (H2〇) ’之後使廢氣中尚未淨化之一氧化碳(C0)、碳氫 化合物(HC)及氮氧化物(ΝΟχ)往喷嘴(N〇zzle)3處流 動’利用氣流流動配合二擴口部32、33及頸部34產 生的負壓開啟第二單向止回閥31藉由調整該調整部 311導入適量之新鮮二次空氣(空燃比a/F$ 14·7),使 該尚未淨化一氧化碳(co)、碳氫化合物(HC)及氮氧化 物(N0X)與適量之新鮮二次空氣流經作為還原及氧化 觸媒用之第一觸媒2,而藉由第一觸媒2上之鍺(Rh)、 鉑(Pt)及鈀(Pd)至少其中之一,可同時淨化引擎5廢氣 中尚未淨化完之一氧化碳(C0)及碳氫化合物(HC),氧 化成無害的^一^乳化碳(C〇2)及水(H2〇),並可同時淨化 引擎5廢氣中之氮氧化物(ΝΟχ),還原成無害的氮氣 (N2)及氧氣(〇2) ’或是氮氧化物(n〇x)直接與_氧化碳 (C0)及碳氫化合物(HC)進行氧化還原反應,轉換成無 害的氮氣(NO、二氧化碳(C〇2)及水(HA),以達到有效 淨化引擎5廢氣之功效。 M299776 清參閱『第6圖』所示,传太名 & 一 係本創作之第三使用狀 悲不思圖。如圖所示:本創作於實際使用日寺,係可將 第一觸媒2與排氣管51連通,並設置於鄰近第一單向 止回閥i之後側,再將另-第_觸媒2與排氣管51連 通,並設置於鄰近上述喷嘴(N〇zzle)3之後側;♦引擎 5排出廢氣時,係利用引擎5出氣口衝力產生^負壓 開啟第一單向止回冑1,使該第一單向止回閥i導入 大,之新鮮二次空氣(空燃& A/F>14.7),使該引擎5 廢乳與大量之新鮮二:欠空氣流經作為氧化及還原觸媒 用之第一觸媒2,而藉由第一觸媒2上之铑(Rh)、鉑(pt) 及鈀(Pd)至少其中之一,可同時淨化引擎5廢氣中大 部分之一氧化碳(C0)及碳氫化合物(HC),氧化成無害 的二氧化碳(C〇2)及水出2〇),並可同時淨化引擎5廢 氣中部份之氮氧化物(N0X),還原成無害的氮氣及 氧氣(〇2),或是部份氮氧化物(Ν〇χ)直接與一氧化碳 (C0)及碳氫化合物(HC)進行氧化還原反應,轉換成無 。的氮氣(Ν2)、一乳化石反(c〇2)及水(η20),之後使尚未 完全淨化之廢氣往喷嘴(N〇ZZle)3處流動,利用氣流流 動配合二擴口部32、33及頸部34產生的負壓開啟第 二單向止回閥31導入適量之新鮮二次空氣(空燃比 A/F$ 14.7),使該尚未淨化完一氧化碳(co)、碳氫化 合物(HC)及氮氧化物(ΝΟχ)與適量之新鮮空氣流經作 為還原及氧化觸媒用之第一觸媒2,而再次藉由第一 觸媒2上之铑(Rh)、鉑(pt)及鈀(Pd)至少其中之一,淨 12 M299776 , 化引擎5廢氣中尚未淨化完之一氧化碳(C〇)及碳氫化 合物(HC),氧化成無害的二氧化碳(c〇2)及水(仏〇), 並可同時淨化引擎5廢氣中之氮氧化物(N〇x),還原成 無害的氮氣(NO及氧氣(ο。,或是氮氧化物(Ν〇χ)直接 與一氧化碳(C0)及碳氫化合物(HC)進行氧化還原反 應,轉換成無害的氮氣(NO、二氧化碳(c〇2)及水 (40) ’以達到有效淨化引擎5廢氣之功效。 _ 凊參閱『第7圖』所示,係本創作之第四使用狀 悲不意圖。如圖所示:本創作亦可運用於雙排以上排 氣管51a之引擎5a,同樣可係利用引擎化出氣口衝力 產生的負壓開啟二個或連接組合成一個第一單向止回 閥1 ,使第一單向止回閥丨導入較少之新鮮空氣(空燃 比A/F$ 14·7) ’分別通過其一側之第一觸媒2、2a, 同時淨化引擎5a廢氣中部分之一氧化碳(c〇)及碳氫 化合物(HC),氧化成無害的二氧化碳(c〇2)及水 • (H2〇),並可同時淨化引擎5a廢氣中之氮氧化物 (N0X),還原成無害的氮氣(N2)及氧氣(〇2),或是氮氧 化物(Ν0Χ)直接與部分之一氧化碳(c〇)及碳氫化合物 (HC)進行氧化還原反應,轉換成無害的氮氣(n2)、二 氧化碳(C〇2)及水(H2〇),之後使廢氣中尚未淨化之一 氧化碳(C0)及碳氫化合物(HC)往喷嘴(N〇zzle)3處流 動’利用第二單向止回閥31,導入較多之新鮮二次空 氣(空燃比A/F> 14.7),藉由第二觸媒4淨化引擎5a 13 M299776 廢氣中之一氧化碳(CO)及碳氫化合物(HC),氧化成無 害的一氧化碳(C〇2)及水(H2〇),並可依實際使用時之 所需於第二觸媒4後方增設另一或一以上之第二觸媒 4a,使該引擎5a廢氣中之殘餘一氧化碳(c〇)、碳氫化 合物(HC)及氮氧化物(ΝΟχ),再次經過淨化,以達到有 效淨化引擎5a廢氣之功效。 本創作亦可僅使用一單向止回閥,其結構包括有 一第一觸媒,該第一觸媒係與該排氣管連通;一噴嘴, 該喷嘴係與該排氣管連通,且設置於鄰近上述第一觸 媒之一側,而該喷嘴上係連通設有一單向止回閥第 二觸媒’該第二觸媒係與該排氣管連通,且 近上述噴嘴之一側。 、鄰 杯丄尸斤述 ,φ +^,F呵仅式降低機車引擎排放廢氣 裝置可有,改善習用之種種缺點,可藉由第一單=The second one-way check valve 31 is opened, and a large amount of fresh secondary air (air-fuel ratio A/F > 14.7) is introduced to make a large amount of carbon monoxide (C0) and carbonium compound (HC) ' The fresh secondary air flows through the second catalyst 4 as an oxidation catalyst, and at least one of platinum (Pt) or palladium (Pd) of the second catalyst 4 purifies one of the carbon oxides in the exhaust gas of the engine 5 (C0) And hydrocarbons (HC), oxidized into harmless carbon dioxide (C〇2) and water (H2〇), and may be added to one or more of the second catalyst 4 as needed in actual use. The second catalyst 使 causes the residual carbon monoxide (c〇), hydrocarbons and gas oxide (N0X) in the exhaust gas of the engine 5 to be purified again to achieve the effect of effectively purifying the exhaust gas of the engine 5. - Li Wen w not this creation ^ two use of the situation is not thinking. As shown in the figure: the present invention actually connects the second catalyst 4 to the exhaust pipe 51 and sets U to the rear side of the check room 1 and sets the first catalyst 2 to the early mouth and adjacent to the mouth. 3 rear side; when the engine 5 discharges the exhaust ventilation M299776, the first one-way check valve 1 is opened by the negative pressure generated by the engine 5 outlet pressure, so that the first one-way check valve! By introducing a large amount of fresh secondary air (air-fuel ratio A/f > 14.7) by adjustment of the adjustment unit n, one of the exhaust gases ((: 〇) and hydrocarbon (HC) is mixed with a large amount of fresh The secondary air flows through the second catalyst 4 as an oxidation catalyst, and the purification engine 5 discharges one of the carbon oxides in the exhaust gas by at least one of platinum (pt) or palladium (Pd) of the second catalyst 4. 〇) and hydrocarbons (HC), oxidized to harmless carbon dioxide (c〇2) and water (H2〇)' after the exhaust gas has not been purified, such as carbon monoxide (C0), hydrocarbons (HC) and nitrogen oxides ( ΝΟχ) Flowing toward the nozzle (N〇zzle) 3 'Using the air flow to match the negative pressure generated by the two flared portions 32, 33 and the neck portion 34 to open the second one-way check valve 31 by adjusting the adjustment portion 311 to introduce an appropriate amount The fresh secondary air (air-fuel ratio a/F$ 14·7) causes the unpurified carbon monoxide (co), hydrocarbon (HC) and nitrogen oxides (N0X) to flow with the appropriate amount of fresh secondary air as a reduction And the first catalyst 2 for the oxidation catalyst, and at least the rhodium (Rh), platinum (Pt) and palladium (Pd) on the first catalyst 2 One of them can simultaneously purify carbon monoxide (C0) and hydrocarbon (HC) which have not been purified in the exhaust gas of the engine 5, and oxidize into harmless emulsified carbon (C〇2) and water (H2〇). At the same time, the nitrogen oxides (ΝΟχ) in the exhaust gas of the engine 5 are purified, and reduced to harmless nitrogen (N2) and oxygen (〇2) ' or nitrogen oxides (n〇x) directly with _ oxidized carbon (C0) and hydrocarbon The compound (HC) undergoes a redox reaction and is converted into harmless nitrogen (NO, carbon dioxide (C〇2) and water (HA) to achieve the effect of effectively purifying the exhaust gas of the engine 5. M299776 is as shown in Fig. 6 The name of the second name & The first use of this creation is sad. As shown in the figure: The original use of the Japanese temple, the first catalyst 2 can be connected to the exhaust pipe 51, and set in Adjacent to the rear side of the first one-way check valve i, the other -the catalyst 2 is connected to the exhaust pipe 51 and disposed adjacent to the rear side of the nozzle (N〇zzle) 3; Using the engine 5 outlet port impulse to generate a negative pressure to open the first one-way check 胄 1, so that the first one-way check valve i is introduced, Fresh secondary air (air-fired & A/F > 14.7), the engine 5 waste milk and a large amount of fresh two: under-air flow through the first catalyst 2 for oxidation and reduction catalyst, by At least one of rhodium (Rh), platinum (pt) and palladium (Pd) on the first catalyst 2 can simultaneously purify most of the carbon monoxide (C0) and hydrocarbon (HC) in the exhaust gas of the engine 5, and oxidize it into Harmless carbon dioxide (C〇2) and water out of 2〇), and can simultaneously purify part of the nitrogen oxides (N0X) in the exhaust gas of engine 5, reducing to harmless nitrogen and oxygen (〇2), or part of nitrogen The oxide (Ν〇χ) is directly oxidized and reduced with carbon monoxide (C0) and hydrocarbon (HC) to be converted to none. Nitrogen (Ν2), an emulsified stone counter (c〇2), and water (η20), and then the exhaust gas that has not been completely purified flows toward the nozzle (N〇ZZle) 3, and flows through the two flared portions 32, 33 by the air flow. And the negative pressure generated by the neck 34 opens the second one-way check valve 31 to introduce an appropriate amount of fresh secondary air (air-fuel ratio A/F$14.7) so that the carbon monoxide (co) and hydrocarbon (HC) have not been purified. And nitrogen oxides (ΝΟχ) and an appropriate amount of fresh air flow through the first catalyst 2 as a reduction and oxidation catalyst, and again by the rhodium (Rh), platinum (pt) and palladium on the first catalyst 2. (Pd) At least one of them, net 12 M299776, has not been purified from carbon monoxide (C〇) and hydrocarbons (HC) in the exhaust gas of the engine 5, oxidized into harmless carbon dioxide (c〇2) and water (仏〇) At the same time, the nitrogen oxides (N〇x) in the exhaust gas of the engine 5 can be purified and reduced to harmless nitrogen (NO and oxygen (or, or nitrogen oxides (Ν〇χ) directly with carbon monoxide (C0) and carbon). The hydrogen compound (HC) undergoes a redox reaction and is converted into harmless nitrogen (NO, carbon dioxide (c〇2) and water (40)' The effect of effectively purifying the exhaust gas of the engine 5 is achieved. _ 凊 See “Fig. 7”, which is the fourth use of this creation. It is as shown in the figure: This creation can also be applied to the exhaust pipe 51a above double row. The engine 5a can also be opened by the negative pressure generated by the engine outlet pressure or combined to form a first one-way check valve 1 so that the first one-way check valve 丨 introduces less fresh air ( The air-fuel ratio A/F$ 14·7) 'is passed through the first catalyst 2, 2a on one side, and simultaneously oxidizes carbon (c〇) and hydrocarbon (HC) in the exhaust gas of the engine 5a to be harmless. Carbon dioxide (c〇2) and water (H2〇), and simultaneously purify nitrogen oxides (N0X) in the exhaust gas of engine 5a, and reduce them to harmless nitrogen (N2) and oxygen (〇2), or nitrogen oxides. (Ν0Χ) directly undergoes redox reaction with a part of carbon monoxide (c〇) and hydrocarbon (HC), and converts into harmless nitrogen (n2), carbon dioxide (C〇2) and water (H2〇), and then makes it in the exhaust gas. One of the carbon monoxide (C0) and hydrocarbon (HC) have not been purified and flowed to the nozzle (N〇zzle) 3 'Using the second one-way check valve 31, introducing a large amount of fresh secondary air (air-fuel ratio A/F > 14.7), purifying one of the exhaust gases (CO) and carbon in the exhaust gas of the engine 5a 13 M299776 by the second catalyst 4 The hydrogen compound (HC) is oxidized to harmless carbon monoxide (C〇2) and water (H2〇), and another one or more second catalysts may be added after the second catalyst 4 as needed in actual use. 4a, the residual carbon monoxide (c), hydrocarbon (HC) and nitrogen oxides (ΝΟχ) in the exhaust gas of the engine 5a are purified again to achieve the effect of effectively purifying the exhaust gas of the engine 5a. The present invention may also use only one one-way check valve, the structure including a first catalyst, the first catalyst is in communication with the exhaust pipe; a nozzle, the nozzle is connected to the exhaust pipe, and is disposed Adjacent to one side of the first catalyst, the nozzle is connected to a one-way check valve. The second catalyst is connected to the exhaust pipe and is adjacent to one side of the nozzle. , neighboring cups, corpse corpse, φ + ^, F ah only reduce the locomotive engine exhaust gas device can have, improve the various shortcomings of the use, can be by the first single =

口閥、喷嘴及第二單向止回閥配合第―、二觸媒 ::制排孔官之一次空氣進氣流量,有效、 =更::達到使用時之穩定性,進而使本:: 之產生旎更進步、更實用、 个別作 已符合創作專利申請之要件,,使用者之所須,確 羑依法提出專利申請。 惟以上所述者,僅為本創作之較 當不能以此限定本創作實施之範圍.故“列而已’ 申請專利1 ’凡依本創作 .内合所作之簡單的等效變 14 M299776 化與修飾,皆應仍屬本創作專利涵蓋之範圍内The port valve, the nozzle and the second one-way check valve cooperate with the first and second catalysts: the primary air intake flow rate of the row of holes, effective, = more:: to achieve stability during use, and thus make this: The production is more progressive, more practical, and the individual works have met the requirements for the creation of a patent application. The user is required to make a patent application according to law. However, the above mentioned, only the scope of this creation can not limit the scope of the implementation of this creation. Therefore, "listed only" patent application 1 'Following this creation. The simple equivalent of the internal combination 14 M299776 Modifications shall remain within the scope of this creation patent.

15 M299776 【圖式簡單說明】 第1A圖,係本創 ^ 於丄 夂基本架構示意圖。 m創作之另-架構示意圓。 ’:創作噴嘴(Nozzle)之剖面狀態示意圖 々 係本創作另一噴嘴之剖面狀態示意圖。 第4圖係、本創作之第一使用狀態示意圖。 第5圖’係本創作之第二使用狀態示意圖。15 M299776 [Simple description of the diagram] Figure 1A is a schematic diagram of the basic structure of the original creation of Yu Yu. m creation of another - architecture schematic circle. ’: Schematic diagram of the profile state of the Nozzle 々 This is a schematic diagram of the profile of another nozzle. Figure 4 is a schematic diagram of the first use state of the creation. Figure 5 is a schematic diagram of the second state of use of the present creation.

第6圖’係本創作之第三使用狀態示意圖。 第7圖’係本創作之第四使用狀態示意圖。 第8圖,係習用之使用狀態示意圖。 【主要元件符號說明】 (本創作部分) 第一單向止回閥1 調整部11 第一觸媒2、2a 喷嘴(Nozzle)3、3a 第二單向止回閥3 1 調整部3 11 擴口部32、33 頸部34 管體 35a、36a 擴口部 351a、361a 流道部37a 16 M299776 第二觸媒4、4a 引擎5、5a 排氣管51、51a (習用部分) 引擎排氣端6 排氣管道60、61 二次空氣導入口 62 還原型觸媒7 • 氧化型觸媒8Figure 6 is a schematic diagram of the third state of use of the present creation. Figure 7 is a schematic diagram of the fourth state of use of the present creation. Fig. 8 is a schematic view showing the state of use of the conventional use. [Description of main component symbols] (This creation part) First one-way check valve 1 Adjustment part 11 First catalyst 2, 2a Nozzle 3, 3a Second one-way check valve 3 1 Adjustment part 3 11 Mouth 32, 33 Neck 34 Tube body 35a, 36a Flared portion 351a, 361a Flow path portion 37a 16 M299776 Second catalyst 4, 4a Engine 5, 5a Exhaust pipe 51, 51a (conventional part) Engine exhaust end 6 Exhaust pipe 60, 61 Secondary air inlet 62 Reduced catalyst 7 • Oxidized catalyst 8

Claims (1)

M299776 九、申請專利範園: 一種兩段式降低機車引擎排放廢氣裝 機車引擎之排氣管上,其包括有:置於 …一第一單向止回閥,該第一單向止回閥係設置於 上述排氣管上,且與該排氣管連通; 一第一觸媒,該第一觸媒係與該排氣管連通,且 设置於鄰近上述第一單向止回閥之一側; 一喷嘴(Nozzle),該喷嘴係與該排氣管連通,且 設置於鄰近上述第—觸媒之—側,而該喷嘴上係連通 δ 又有一第二單向止回閥;以及 至 >、第一觸媒,該第二觸媒係與該排氣管連 通,且設置於鄰近上述喷嘴之一侧。 2·依申請專利範圍第Μ項所述之兩段式降低機車引擎 排放廢氣裝置,其中,該第一單向止回閥係可設置有 一調整部。 3.依申凊專利範圍第1項所述之兩段式降低機車引擎 排放廢氣裝置,其中,該第一觸媒被覆有铑(Rh)'鉑 (Pt)或鈀(Pd),可同時淨化引擎廢氣中部分之一氧化 碳(C0)及碳氫化合物(HC),氧化成無害的二氧化碳 (C〇2)及水(H2〇) ’並可同時淨化引擎廢氣中之氮氧化 物(ΝΟχ),還原成無害的氮氣(N2)及氧氣(〇2),或是氮 氧化物(Ν0Χ)直接與一氧化碳(c〇)及碳氫化合物(Hc) 進行氧化還原反應,轉換成無害的氮氣(n2)、二氧化 M299776 碳(C〇2)及水(H2〇),作為氧化及還原觸媒之用 4.依申請專利範圍帛丨項所述之兩段式降低機 排放廢氣襄置,其中,該喷嘴内部之二端係分別2 口设置一擴口部,而該二擴口部之連接處係具 二 窄之頸部。 ’、’、頁一較 5. 依申請專利範圍第丨項所述之兩段式降低機 排放廢氣裝置,其中,該喷嘴之内部:端係分別 一具有擴口部之管體,使該擴口部朝噴嘴之二開口, 並於一官體對應處形成一流道部,使該第二 閥與流道部連通。 ° 6. 依申請專利範㈣i項所述之兩段式降低機車引 排放廢氣裝置,其中,該第二單向止回間係可設置有 一調整部。 另 7. 依申料·㈣丨項所述之兩段式降低機車引擎 排放廢氣裝置,其中,該第二觸媒至少被覆有麵⑼ 或纪㈣,可淨化引擎廢氣中之一氧化碳(c〇)及碳氮 化合物(HC),氧化成無害的二氧化碳(C〇2)及水 (H2〇),作為氧化觸媒之用。 8. -種兩段式降低機車弓丨擎排放廢氣裝置,係可設置於 機車引擎之排氣管上,其包括有: -第-觸媒,該第—觸媒係與該排氣管連通; 喷嘴(Nozzle) Ή嘴係與該排氣管連通,且 M299776 設置於鄰近上述第一觸媒之一側,而該喷嘴上係連通 設有一單向止回閥;以及 至少一第二觸媒,該第二觸媒係與該排氣管連 通,且設置於鄰近上述喷嘴之一側。M299776 IX. Application for Patent Park: A two-stage exhaust pipe for reducing the exhaust engine of a locomotive engine, including: a first one-way check valve, the first one-way check valve The first catalyst is connected to the exhaust pipe and disposed adjacent to the first one-way check valve a nozzle (Nozzle), the nozzle is in communication with the exhaust pipe, and is disposed adjacent to the side of the first catalyst, and the nozzle is connected to δ and has a second one-way check valve; >, a first catalyst, the second catalyst is in communication with the exhaust pipe, and is disposed adjacent to one side of the nozzle. 2. The two-stage lower locomotive engine exhaust gas exhausting device according to the scope of the patent application, wherein the first one-way check valve is provided with an adjusting portion. 3. The two-stage reduction locomotive engine exhaust gas device according to claim 1, wherein the first catalyst is coated with rhodium (Ph) or platinum (Pd), which can be simultaneously purified. One part of the engine exhaust gas, carbon monoxide (C0) and hydrocarbon (HC), is oxidized into harmless carbon dioxide (C〇2) and water (H2〇) and can simultaneously purify nitrogen oxides (ΝΟχ) in the engine exhaust gas. Into the harmless nitrogen (N2) and oxygen (〇2), or nitrogen oxides (Ν0Χ) directly with carbon monoxide (c〇) and hydrocarbons (Hc) redox reaction, converted to harmless nitrogen (n2), Dioxide M299776 carbon (C〇2) and water (H2〇), used as oxidation and reduction catalysts. 4. Two-stage reducer exhaust gas exhausting device according to the scope of the patent application, wherein the nozzle The inner two ends are respectively provided with a flared portion at two ports, and the joint of the two flared portions has a narrow neck portion. ', ', page one is 5. The two-stage reducer exhaust gas device according to the scope of the patent application scope, wherein the inside of the nozzle: the end is respectively a pipe body having a flared portion, so that the expansion The mouth opens toward the second nozzle, and a first-class road portion is formed at a corresponding position of the official body, so that the second valve communicates with the flow path portion. ° 6. Reduce the locomotive exhaust emission device according to the two-stage type described in the application patent (4) item i, wherein the second one-way check interval may be provided with an adjustment portion. 7. The two-stage reduction locomotive engine exhaust system according to the application (4), wherein the second catalyst is at least coated with a surface (9) or (4), which can purify one of the carbon dioxide (c〇) in the exhaust gas of the engine. And carbonitrides (HC), oxidized into harmless carbon dioxide (C〇2) and water (H2〇), used as an oxidation catalyst. 8. A two-stage reduction locomotive bow engine exhaust exhaust device, which can be disposed on an exhaust pipe of a locomotive engine, comprising: - a first catalyst, the first catalyst is connected to the exhaust pipe Nozzle (nozzle) is connected to the exhaust pipe, and M299776 is disposed adjacent to one side of the first catalyst, and the nozzle is connected with a one-way check valve; and at least one second catalyst The second catalyst is in communication with the exhaust pipe and disposed adjacent to one side of the nozzle. 2020
TW95202264U 2006-02-09 2006-02-09 Two-stage engine exhaust reduction device TWM299776U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI449572B (en) * 2006-11-29 2014-08-21 Umicore Shokubai Japan Co Ltd Oxidation catalyst and the oxidation catalyst using an exhaust gas purification system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI449572B (en) * 2006-11-29 2014-08-21 Umicore Shokubai Japan Co Ltd Oxidation catalyst and the oxidation catalyst using an exhaust gas purification system

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