經濟部智慧財產局員工消費合作社印製 44826 7 A7 B7 五、發明説明（!) 【發明所屬之技術領域】 本發明是關於適用於機車之空氣濾淸裝置’係小型且 既可抑制製造成本又降低吸氣音。 【先前技術】 以往已知的引擎用空氣濾淸裝置係有：（1 )可降低 吸氣音的空氣濾淸裝置：（2)日本實公昭6 0 -32373號公報的「內燃機用空氣濾淸裝置」。 茲佐以第7圖，說明上述（1 )的習知技術如下° 第7圖係傳統的空氣濾淸裝置的側面圖：空氣濾淸裝 置1 0 0係由：空氣濾淸裝置外盒1 〇 1 :和從這個空氣 濾淸裝置外盒1 0 1連通到未圖示的化油器的連接管 1 ◦ 2 ;和安裝在這個連接管1 〇 2的外周面之用來降低 空氣被吸入到空氣濾淸裝置外盒1 〇 2時的吸氣音的共鳴 器10 3所構成的裝置。 共鳴器1 0 3係可令空氣在於與連接管1 〇 2相連通 的密閉空間內發生共鳴，因而獲得消音效果的裝置。 此外，前述技術（2 )所揭示的空氣濾淸裝置，則是 如該日本實公昭6 0_ 3 2 3 7 3號公報的第1圖所示， 在於空氣濾淸裝置外盒1 1內，收容著濾心2 i，利用這個 濾心2 i將空氣濾淸裝置外盒1 1內部劃分成未淨化空氣室 A i以及已淨化空氣室B i，並且將與化油器相連通的吸氣 路4 ^連通到該已淨化空氣室B :。 本紙張尺度逋用中画國家橾準（CMS > A4規格（210X297公嫠〉 -4- ---^---^----裝---^----訂------線 (請先聞讀背面之注意事項再卢.本頁) 44826 7 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明説明G ) 【本發明所欲解決之課題】 爲了要降低上述技術（2 )的空氣濾淸裝置的吸氣音 ，有人想到可在於上述技術（2 )的吸氣路4 ，加裝上 述技術（1 )的共鳴器1 0 3。 但是，如果加裝上述共鳴器1 0 3到上述技術（2 ) 的吸氣路的話，則整個空氣濾淸裝置將會變得很大，例如 :欲在於可供安裝零件的空間較少的機車身上安裝上述空 氣濾淸裝置的話，將會因爲共鳴器1 0 3必須具有足以用 來消音的預定體積和形狀，所以空氣濾淸裝置外盒1 1的部 分的形狀將會受到限制，而無法發揮充分的淨化能力。 此外，因爲係在吸氣路4 τ上加裝了另外一個個體的共 鳴器，所以將會增加零件數目和安裝時所需的工數，因而 導致成本的增加。 【用以解決課題之手段】 爲了達成上述目的，本案的第一發明爲：一種機車之 空氣濾淸裝置，係將空氣濾淸裝置外盒內部以濾心劃分成 骯髒側和乾淨側的引擎用空氣濾淸裝置，其特徵爲： 將前述空氣濾淸裝置外盒的乾淨側的空間的一部份隔 間以形成副室，在這個副室係連接著：用以令來自於引擎 的曲軸箱的漏氣回流到引擎之漏氣回收管的出口，以及可 將二次空氣送到引擎的排氣系統的二次空氣供給管的入口 〇 利用濾心將空氣濾淸裝置外盒內隔間成骯髒側與乾淨 ----^---^----裝-------訂------線 (請先聞讀背面之注意事項再攻本頁) 本纸張尺度速用中國菌家榣率（CNS ) A4規格（210X297公釐） -5- A7 B7 五、發明説明) 側，並將這個乾淨側的空間的一部份隔間以形成副室，從 引擎的曲軸箱利用漏氣回收管令漏氣回流到副室，再從副 室利用二次空氣供給管將二次空氣送到引擎的排氣系統。 其結果，副室係可發揮共鳴器的功能，而且可將設有 副室的空氣濾淸裝置外盒製作成小型化*可較爲不受空間 上的限制地將空氣濾淸裝置搭載到機車身上·> 而且，在與傳統的將共鳴器另外個別地設在用來連通 空氣濾淸裝置外盒與化油器的連接管身上的情況進行較之 下，如果是以塑膠來製作空氣濾淸裝置外盒的時候，只要 利用型模僅以一次的射出成型就可以容易製得，因而可以 降低製造成本。 此外，可利用亦可發揮共鳴器功能的副室兼具有：用 來分離漏氣中的機油成分的漏氣回收槽：'以及用來供應二 次空氣的空氣室的功能，因此，可較之將漏氣回收槽以及 空氣室與副室分開設置的情況更加地讓空氣濾淸裝置形成 小型化。 本案的第二發明的特徵爲：在前述副室的一個角落形 成迷宮構造，以將前述漏氣經由這個迷宮構造，送到副室 的中央。 將流進副室內的漏氣經過形成於副室的一個角落的迷 宮構造送到副室的中央。 其結果，漏氣中的液狀機油成分將不會通過迷宮構造 ，可防止機油成分進入到副室的中央。 本案的第三發明的特徵爲：前述濾心係有底圓筒型濾 本紙張尺度逋用中國圃家標準（CNS > A4规格（2丨0X297公釐） ----^----等-- ί請先閲讀背面之注意事項再械.本頁) 訂 線 經濟部智慧財產局員工消費合作社印製 經濟部智慧財產局員工消費合作社印製 ^ 482 6 7 A7 B7 五、發明説明G ) 心，並且將這個濾心的底部突出到前述骯髒側。 如此一來，係可採用傳統的有底圓筒型濾心’並且只 要將空氣濾淸裝置外盒內的濾心安裝部的形狀形成與傳統 的相同的形狀的話’不必採用新設計的濾心即可使用’可 抑制成本的增加。 【發明之實施形態】 茲佐以附圖來說明本發明的實施形態如下。此外’圖 面係以其中的箭頭方向來觀察時的圖面。 第1圖是具備本發明的空氣濾淸裝置的機車的側面圖 。機車1 0係由：頭管1 1 ;和可轉向自如地安裝在這個 頭管1 1的前叉1 2 ;和安裝於這個前叉1 2的下端之前 輪1 3 ;安裝在前叉1 2的上部與其成一體的車把1 4 ; 和延伸在頭管11的後方的車體框15;由安裝在這個車 體框15的下部的引擎16及動力傳遞機構17所組成的 動力單元1 8 ;和從車體框1 5的後部延伸往後輪2 1側 的後避震單元2 2 ;和安裝在車體框1 5的上方的燃料油 箱2 3 ;和配置在這個燃料油箱2 3的後方的坐墊2 4 ; 以及位在這個坐墊2 4的前部下方且安裝在車體框1 5的 側方的空氣濾淸裝置2 5所組成的。 此處，2 7係頭燈：2 8係化油器；2 9係用來連結 空氣濾淸裝置2 5和化油器2 8的連接管；3 1係用來連 接化油器2 8與引擎1 6的吸氣管；3 2係用來將二次空 氣送往引擎1 6的排氣系統的二次空氣供給管；3 3係設 本紙張尺度逋用中國國家橾準（CNS ) A4規格（210X297公嫠） | II^IiTi^ <請先閎讀背面之注$項再迫本頁) 44826 7 A7 A7 _ B7 五、發明説明) 在二次空氣供給管3 2的中途的流量調整閥；3 4係從引 擎1 6的曲軸箱3 5內回收漏氣用的漏氣回收管； 3 6係用來覆蓋住空氣濾淸裝置2 5的側方的側蓋；3 7 係側腳架；3 8係尾燈。 第2圖係顯示出用來連接本發明的空氣濾淸裝置與引 擎的各個路徑之路徑圖。 空氣濾淸裝置2 5係以濾心4 3將空氣濾淸裝置外盒 4 2內部劃分成：作爲骯髒側的濾心前室4 4與作爲乾淨 側的濾心後室4 5 ’且利用分隔壁4 6來將這個濾心後室 4 5的空間予以部分隔間成：設在濾心4 3內的濾心內室 4 7與副室4 8，利用一個開口 4 3 a來連通濾心內室 4 7與副室4 8，並且將副室4 8內部利用由第一凸壁 4 9和第二凸壁5 1所構成的迷宮構造5 2劃分成第一副 室4 8 a和第二副室4 8 b ，使得第一副室4 8 a與第二 副室4 8 b係經由迷宮構造5 2而連通在一起。 所謂「骯髒側（濾心前室4 4 )」係指：供含有塵土 等的外氣流入的空間，而所謂「乾淨側（濾心後室4 5 ) 」係指：骯髒側內的外氣通過濾心4 3而被除掉塵土等之 後的空氣所存在的空間。 此處，53係空氣濾淸裝置外盒42的吸氣口； 54 係當作二次空氣供給管3 2的入口用的吸入口 ： 5 5係當 作漏氣回收管3 4的出口之吐出口； 5 6係連接於引擎 1 6的排氣管：5 7係安裝在排氣管5 6的後端部的消音 管5 7 ; 58係連接在消音管57的後端的尾管：6 1係 本紙張尺度適用中國囤家標準（CNS ) A4規格（210X297公釐） -------^----装-·-I (请先闖讀背面之注意事項再成桊I)Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 44826 7 A7 B7 V. Description of the invention (!) [Technical field to which the invention belongs] The present invention relates to an air filter device suitable for locomotives, which is small in size and can suppress manufacturing costs. Reduce the inspiratory sound. [Prior Art] Conventionally known air filter devices for engines include: (1) an air filter device capable of reducing the intake sound: (2) "Air Filter for Internal Combustion Engines", Japanese Utility Model Publication No. 6 0-32373 Device. " Here is a description of the conventional technique of the above (1) with Fig. 7: Fig. 7 is a side view of a conventional air filter device: The air filter device 100 is made up of: the outer box 1 of the air filter device. 1: Connected to the connection tube 1 of the carburetor (not shown) from the outer box 1 0 1 of the air filter unit; and the connection pipe 1 〇 2 is installed on the outer peripheral surface of the connection pipe 1 to reduce the intake of air The air filter device is a device composed of a resonator 103 for the inspiratory sound at the time of the outer box 102. The resonator 103 is a device that can cause air to resonate in a confined space communicating with the connecting pipe 102, thereby obtaining a noise reduction effect. In addition, the air filter device disclosed in the aforementioned technology (2) is, as shown in FIG. 1 of Japanese Patent Publication No. 6 0_3 2 3 7 3, contained in the outer box 11 of the air filter device. The filter core 2 i is used to use the filter core 2 i to divide the inside of the outer box 11 of the air filter device into an unpurified air chamber A i and a purified air chamber B i, and the suction path communicating with the carburetor 4 ^ is connected to the purified air chamber B :. This paper uses the standard of Chinese painting (CMS > A4 size (210X297) X -4- --- ^ --- ^ ---- pack --- ^ ---- order ---- --Line (please read the precautions on the back first, then Lu. This page) 44826 7 A7 B7 Printed by the Consumers' Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs V. Invention Description G) [Questions to be Solved by the Invention] It is thought that the suction sound of the air filter device of the above-mentioned technology (2) may be located in the suction path 4 of the above-mentioned technology (2), and the resonator 103 of the above-mentioned technology (1) is installed. However, if the above-mentioned technology is installed Resonator 103 to the air intake path of the above technology (2), the entire air filter device will become very large. For example, if the air filter is to be installed on a vehicle body with less space for installing parts In the case of the device, since the resonator 103 must have a predetermined volume and shape sufficient for sound attenuation, the shape of the part of the outer box 11 of the air filter device will be limited, and a sufficient purification capacity cannot be exerted. Because an additional individual resonator is installed on the suction path 4 τ, it will increase zero. The number of parts and the number of labor required for installation lead to an increase in cost. [Means to solve the problem] In order to achieve the above object, the first invention of this case is: an air filter device for a locomotive, which filters air The inside of the device outer box is divided into a dirty side and a clean side engine air filter device by a filter core, which is characterized in that: a part of the compartment on the clean side of the air filter device outer box is formed to form a sub chamber In this sub-chamber are connected: the leakage from the engine's crankcase is returned to the outlet of the engine's leakage recovery pipe, and the secondary air supply that can send the secondary air to the exhaust system of the engine The inlet of the tube. Use the filter core to make the inner compartment of the outer box of the air filter device into a dirty side and clean ---- ^ --- ^ ---- install --------- order ----- -Line (please read the precautions on the back before tapping this page) This paper scale uses the Chinese Mycorrhizal Growth Rate (CNS) A4 specification (210X297 mm) -5- A7 B7 V. Description of the invention), and Partially divide this part of the clean-side space to form a sub-chamber, and use the air leakage recovery pipe from the crankcase of the engine Leak back into the sub-chamber, and then the secondary air to the exhaust system of the engine by the secondary air supply pipe from the secondary chamber. As a result, the sub-chamber system can function as a resonator, and the outer box of the air filter device provided with the sub-chamber can be made compact. * The air filter device can be mounted on the locomotive without being restricted by space. The body > Compared with the traditional case where the resonator is separately provided on the connecting pipe connecting the outer box of the air filter device and the carburetor, if the air filter is made of plastic When the device outer box is used, it can be easily manufactured by using only one injection molding using a mold, thereby reducing manufacturing costs. In addition, a sub chamber that can also function as a resonator can be used. It also has a leak recovery tank to separate the oil component in the leak, and a function of an air chamber for supplying secondary air. The fact that the air leakage recovery tank and the air chamber are separately provided from the auxiliary chamber further reduces the size of the air filter device. The second invention of the present invention is characterized in that a labyrinth structure is formed at one corner of the auxiliary chamber, so that the leaked air is sent to the center of the auxiliary chamber through the labyrinth structure. The leaked air flowing into the sub-chamber is sent to the center of the sub-chamber through a labyrinth structure formed in one corner of the sub-chamber. As a result, the liquid oil component in the leak will not pass through the labyrinth structure, and the oil component can be prevented from entering the center of the subchamber. The third invention of the present case is characterized in that: the aforementioned filter core is a bottomed cylindrical filter paper, and the standard of the Chinese gardener (CNS > A4 (2 丨 0X297 mm)) ---- ^ ---- Wait-please read the precautions on the back before reworking. This page) Printed by the Consumers ’Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs Printed by the Employees’ Cooperatives of the Intellectual Property Bureau of the Ministry of Economy ^ 482 6 7 A7 B7 V. Invention Description G ) Heart and project the bottom of this filter to the aforementioned dirty side. In this way, a conventional bottomed cylindrical filter element can be used, and as long as the shape of the filter mounting portion in the outer box of the air filter device is the same as the conventional shape, it is not necessary to use a newly designed filter element. Ready to use 'can suppress the increase in cost. [Embodiment of the Invention] The following describes the embodiment of the present invention with reference to the drawings. In addition, the 'view' is a view when viewed in the direction of the arrow. FIG. 1 is a side view of a locomotive provided with an air filter device of the present invention. The locomotive 10 is composed of: a head pipe 1 1; and a front fork 1 2 which can be steered freely mounted on the head pipe 1 1; and a front wheel 1 3 installed on the lower end of the front fork 12; and a front fork 1 2 The upper part of which is integrated with a handlebar 1 4; and a body frame 15 extending behind the head pipe 11; a power unit 18 composed of an engine 16 and a power transmission mechanism 17 installed at the lower part of the body frame 15 ; And a rear suspension unit 2 2 extending from the rear of the vehicle body frame 15 to the rear wheel 21 side; and a fuel tank 2 3 installed above the vehicle body frame 15; and a fuel tank 23 disposed in this fuel tank 23 A rear seat cushion 2 4; and an air filter device 25 located below the front of the seat cushion 4 and installed at the side of the body frame 15. Here, the 2 7 series headlights: 2 8 series carburetor; 2 9 series are used to connect the air filter device 2 5 and the carburetor 2 8 connecting pipe; 3 1 series are used to connect the carburetor 2 8 and Suction pipe for engine 16; 32 is the secondary air supply pipe used to send the secondary air to the exhaust system of engine 16; 3 3 is set to this paper size, using China National Standard (CNS) A4 Specifications （210X297 公 嫠） | II ^ IiTi ^ < Please read the note on the back before pressing this page) 44826 7 A7 A7 _ B7 V. Description of the invention) The flow rate in the middle of the secondary air supply pipe 3 2 Adjusting valve; 3 4 is a leakage recovery pipe for recovering air leakage from the crankcase 3 5 of the engine 16; 3 6 is a side cover for covering the side of the air filter device 2 5; 3 7 is the side Tripod; 3 8 series tail lights. Fig. 2 is a path diagram showing various paths for connecting the air filter device and the engine of the present invention. The air filter device 2 5 is a filter core 4 3 which divides the interior of the air filter device outer box 4 2 into: a dirty filter front chamber 4 4 and a clean filter back chamber 4 5 ′. The partition wall 46 is used to partially partition the space of the filter back chamber 45 into the filter chamber 4 7 and the auxiliary chamber 4 8 provided in the filter 4 3, and an opening 4 3 a is used to communicate with the filter. Intracardiac chamber 4 7 and auxiliary chamber 4 8, and the interior of auxiliary chamber 4 8 is divided into first auxiliary chamber 4 8 a by a labyrinth structure 5 2 composed of first convex wall 49 and second convex wall 51. The second sub-chamber 4 8 b is such that the first sub-chamber 4 8 a and the second sub-chamber 4 8 b communicate with each other via the labyrinth structure 5 2. The so-called "dirty side (front filter chamber 4 4)" refers to the space where outside air containing dust and other air flows in, and the so-called "clean side (rear filter chamber 4 5)" refers to the space inside the dirty side The space where the outside air passes through the filter 43 and the dust and the like are removed. Here, 53 is the suction port of the outer box 42 of the air filter device; 54 is the suction port used as the inlet of the secondary air supply pipe 32; 5 5 is used as the spit of the leaky recovery pipe 34; Outlet; 5 6 series exhaust pipe connected to the engine 16: 5 7 series silencer pipe 5 7 installed at the rear end of the exhaust pipe 5 6; 58 series tail pipe connected to the rear end of the silencer 57: 6 1 The size of this paper is applicable to China Store Standard (CNS) A4 specification (210X297mm) ------- ^ ---- pack- · -I (please read the precautions on the back first to become 桊 I)
.1T 線 經濟部智慧財產局員工消費合作社印製 448267 經濟部智慧財產局員工消費合作社印製 A7 ______B7_ 五、發明説明) 連接於排氣管5 6的二次空氣供給管3 2的吐出口； 6 2 係與引擎1 6的曲軸箱3 5連接的漏氣回收管3 4的吸入 □。 第3圖係本發明的空氣濾淸裝置的側面圖，係顯示將 空氣濾淸裝置2 5的蓋子拆開後的狀態。 空氣濾淸裝置2 5係在於空氣濾淸裝置外盒4 2的後 部安裝有一個吸氣口 5 3，在空氣濾淸裝置外盒4 2內收 容著濾心4 3，在空氣濾淸裝置外盒4 2的前部設有一個 由側面觀察時呈現長圓形狀的副室4 8。此外，6 4係用 來覆蓋住副室4 8的側方的副室外蓋；6 5 ' 6 5係用來 將副室外蓋6 4安裝到空氣濾淸裝置外盒4 2上的小螺絲 〇 第4圖係第3圖中沿著4一 4線的斷面圖，空氣濾淸 裝置2 5係由：空氣濾淸裝置外盒4 2 ;和濾心4 3 ;和 利用分隔壁4 6將濾心後室4 5的一部份隔間而成的副室 4 8 :和用來覆蓋住副室4 8的側方的副室外蓋6 4 ;和 用來覆蓋空氣濾淸裝置外盒4 2的側方的蓋子6 6所組成 的。 濾心4 3係呈有底圓筒狀的圓筒型的濾心，將該圓筒 之呈開口的一端部安裝到副室4 8的分隔壁4 7上，並且 將濾心4 3內部連通到副室4 8內部。 副室4 8係連通於安裝在分隔壁4 6的前方的連接管 2 9° 由以上的說明可知，本實施例係利用瀘心4 3將空氣 -------^----裝：-------訂------線 {請先閲讀背面之注^^項再城本頁} 本紙張尺度適用中國國家橾準（CNS > A4規格（210X297公釐） -9 - ^48267 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明説明6 ) 濾淸裝置外盒4 2內部劃分成骯髒側和乾淨側的引擎用空 氣濾淸裝置2 5 ，將空氣濾淸裝置外盒4 2的乾淨側的空 間的一部份予以隔間，以形成具有降低吸氣音的共鳴器的 作用之副室4 8，所以可將形成有副室4 8的空氣濾淸裝 置外盒4 2製作成小型化，所以可較爲不受空間上的限制 地將空氣濾淸裝置2 5搭載到機車10 (請參考第1圖） 身上。 又，在於與傳統的將共鳴器另外個別地設在.用來連通 空氣濾淸裝置外盒與化油器的連接管身上的情況進行較之 下，以塑膠來製作空氣濾淸裝置外盒4 2的話，只要利用 型模僅以一次的射出成型就可以容易製得，因而可以降低 製造成本。 因此，不僅可使得空氣濾淸裝置2 5製作成小型化以 及降低製造成本，又可降低吸氣音。 此外，空氣濾淸裝置2 5，係將濾心4 3採用有底圓 筒型濾心，並且將這個濾心4 3的底部突出到骯髒側也就 是濾心前室4 4內，所以係可採用傳統的有底圓筒型濾心 ，並且只要將空氣濾淸裝置外盒4 2內的濾心安裝部也就 是分隔壁4 7的形狀形成與傳統的相同的形狀的話，不必 採用新設計的濾心即可使用，可抑制成本的增加。 第5圖係第3圓中沿著5 — 5線的斷面圖。空氣濾淸 裝置外盒4 2係具備：設在副室4 8的下部的第一凸壁 4 9 :和設在第一凸壁4 9的上方的吸入管6 7 :和設在 第一凸壁4 9的下方之吐出管6 8。 -------^----------ir------0 (請先聞讀背面之注意事項再威本頁) 本紙張尺度適用中國國家標準（CNS } A4規格（2丨OX297公釐） -10- 267 A7 B7 ^、發明説明& ) {請先閲讀背面之注意事項再婊本頁) 吸入管6 7係用來連接二次空氣供給管3 2的吸入口 5 4 ’吐出管6 8係用來連接漏氣回收管4 8 (請參考第 3圖）的吐出口 55 (請參考第3圖）的。 副室外蓋6 4係具有：延伸到副室4 8內的第一凸壁 4 9附近，並在副室4 8的一個角落形成迷宮構造5 2的 第二凸壁5 1。 茲由以上的說明可知，係將用來構成迷宮構造5 2的 第二凸壁5 1設在副室外蓋6 4，所以可很容易分別形成 第〜凸壁4 9以及第二凸壁5 1。 又’安裝副室外蓋6 4到空氣濾淸裝置外盒4 2時， 係利用小螺絲6 5、6 5可很容易安裝，而且只要將副室 外蓋6 4安裝到空氣濾淸裝置外盒4 2身上即可很容易就 形成迷宮構造5 2。 以下將說明上述的空氣濾淸裝置的作用。 首先，佐以第2圖說明聯繫著空氣濾淸裝置2 5以及 引擎1 6的各路徑中的空氣、漏氣 '排氣氣體的流動情形.1T printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 448267 printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 ______B7_ V. Description of the invention) The outlet of the secondary air supply pipe 32 connected to the exhaust pipe 5 6; 6 2 is the suction □ of the leak air recovery pipe 34 connected to the crankcase 35 of the engine 16. Fig. 3 is a side view of the air filter device of the present invention, and shows a state where the cover of the air filter device 25 is removed. The air filter device 2 5 is an air inlet 5 3 installed at the rear of the outer box 4 2 of the air filter device. A filter core 4 3 is housed in the outer box 4 2 of the air filter device. The front part of the box 42 is provided with a sub-chamber 4 8 which has an oblong shape when viewed from the side. In addition, 6 4 is a sub-outdoor cover for covering the side of the sub-chamber 48; 6 5 '6 5 is a small screw for attaching the sub-outdoor cover 6 4 to the outer box 4 2 of the air filter device. Figure 4 is a sectional view taken along line 4-4 in Figure 3, and the air filter device 25 is composed of: the outer box 4 2 of the air filter device; and the filter core 4 3; Sub-chamber 4 8 formed by a part of the compartment of the rear filter chamber 4 5: and a sub-outdoor cover 6 4 for covering the side of the sub-chamber 4 8; and an outer box 4 for covering the air filter device 2 is composed of the side cover 6 6. The filter element 4 3 is a cylindrical filter element having a bottomed cylindrical shape. The open end of the cylinder is attached to the partition wall 4 7 of the sub chamber 4 8, and the filter element 4 3 is communicated inside. To the interior of the auxiliary room 4-8. The auxiliary chamber 4 8 is connected to the connecting pipe 2 9 ° installed in front of the partition wall 4 6. As can be seen from the above description, this embodiment uses the core 4 3 to air ------- Packing: ------- Order ------ line {Please read the note on the back ^^ item before this page} This paper size applies to Chinese national standards (CNS > A4 size (210X297 mm) ) -9-^ 48267 Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Invention Description 6) Filter box outer box 4 2 The interior is divided into dirty side and clean side engine air filter unit 2 5, A part of the space on the clean side of the air filter device outer box 4 2 is compartmented to form a sub chamber 4 8 having a resonance function of reducing the inhalation sound, so that the sub chamber 4 8 can be formed. The air filter device outer box 4 2 is made compact, so that the air filter device 2 5 can be mounted on the locomotive 10 (see FIG. 1) without being restricted by space. In addition, it is compared with the traditional case in which the resonator is separately installed on the connecting pipe of the outer box of the air filter device and the carburetor, and the outer box 4 of the air filter device is made of plastic. If 2 is used, the mold can be easily produced by only one shot injection molding, so the manufacturing cost can be reduced. Therefore, not only the air filter device 25 can be miniaturized and the manufacturing cost can be reduced, but also the intake sound can be reduced. In addition, the air filter unit 25 uses a bottomed cylindrical filter element 4 3, and the bottom of the filter element 4 3 is protruded to the dirty side, that is, the front chamber 4 4 of the filter element. A traditional bottomed cylindrical filter can be used, and as long as the shape of the filter mounting part, that is, the partition wall 4 7 in the outer box 4 2 of the air filter device is formed into the same shape as the traditional one, no new design is necessary. Filter can be used, which can suppress the increase in cost. Figure 5 is a sectional view taken along line 5-5 in the third circle. The outer box 4 2 of the air filter device is provided with a first convex wall 4 9 provided in the lower portion of the sub-chamber 48 and a suction pipe 6 7 provided above the first convex wall 49. The spout tube 6 8 below the wall 4 9. ------- ^ ---------- ir ------ 0 (Please read the precautions on the back first, and then authorize this page) This paper size applies Chinese National Standard (CNS) A4 specification (2 丨 OX297mm) -10- 267 A7 B7 ^ Invention &) {Please read the precautions on the back before clicking this page) Suction pipe 6 7 is used to connect the secondary air supply pipe 3 2 The suction port 5 4 ′ and the discharge pipe 6 8 are used for connecting the leaking recovery pipe 4 8 (please refer to FIG. 3) and the outlet 55 (please refer to FIG. 3). The auxiliary outdoor cover 6 4 has a second convex wall 51 that extends into the vicinity of the first convex wall 49 in the auxiliary room 48 and forms a labyrinth structure 5 2 at one corner of the auxiliary room 48. It can be seen from the above description that the second convex wall 5 1 for forming the labyrinth structure 5 2 is provided on the sub-outdoor cover 6 4. Therefore, the first to fourth convex walls 49 and the second convex wall 5 1 can be easily formed separately. . When attaching the sub-outdoor cover 6 4 to the air filter device outer box 4 2, it can be easily installed by using small screws 6 5 and 65, and as long as the sub-outdoor cover 6 4 is installed in the air filter device outer box 4 2 can easily form a maze structure 5 2. The function of the air filter device described above will be described below. First, with reference to FIG. 2, the flow of the exhaust gas and the air leakage in each path connecting the air filter device 25 and the engine 16 will be described.
C 經濟部智竓財產局員工消費合作社印製 首先，外氣（圖中以中空箭頭所示者）係從空氣濾淸 裝置2 5的吸氣口 5 3流進入空氣濾淸裝置外盒4 2的濾 心前室4 4，通過濾心4 3時，外氣中所含的塵土等將會 被除去，然後才流進入濾心內室4 7。 濾心內室4 7內的空氣係通過開口 4 3 a流入副室 4 8內，從這個副室4 8內，主要是通過連接管2 9而到 達化油器2 8，並且經過吸氣管3 1與燃料一起流進引擎 本紙張尺度適用中國國家標準（CNS ) A4规格（2!0><297公釐） -11 - 448267 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明説明（9 ) 16之未圖示的燃燒室。 然後’上述空氣係與燃料一起燃燒後，通過排氣管 56、消音管57 '尾管58而排放到外部。 又，副室4 8內的空氣的一部份，會從副室4 8的第 —副室4 8 b的上方的吸入口 5 4流入二次空氣供給管 3 2內，其流量受到流量調整閥3 3所調整之後，再從二 次空氣供給管3 2的吐出口 6 1流入排氣管5 6內。此一 結果，排氣管5 6內的排氣氣體內所含的H C、. NO等的 成分將受到空氣所氧化後，通過消音管5 7、尾管5 8而 排放到外部。 引擎1 6運轉中，從燃燒室流入曲軸箱3 5內的燃燒 氣體的一部份將會與曲軸箱3 5內霧狀油氣混合在一起， 而成爲漏氣。 這種漏氣將因爲曲軸箱3 5內的壓力而如圖中的虛線 箭頭所示般地，通過於漏氣回收管3 4內，而從吐出口 5 5流入副室4 8的第一副室4 8 a內。 第一副室4 8 a內的漏氣將會通過迷宮構造5 2內， 而流入第二副室4 8 b內，然後，通過連接管2 9、化油 器、吸氣管3 1而流入引擎1 6的燃燒室內，經過燃燒後 變成排氣氣體，從尾管5 8排出到外部。 茲由以上說明可知，漏氣回收管3 4的吐出口和二次 空氣供給管3 2的吸入口 5 4係連接在副室4 8 ，所以可 利用具有共鳴器功能的副室4 8兼具有：用來分離漏氣中 的機油成分的漏氣回收槽：以及用來供應二次空氣的空氣 ^^?T.^ (请先W讀背面之注意事項再奸，本頁) 本紙張尺度適用中國圉家梂準（CNS > A4规格（210X297公釐） -12- 4482 6 7 A7 B7 五、發明説明（to ) 室的功能，因此’可較之將漏氣回收槽以及空氣室與副室 分開設置的情況更加地讓空氣濾淸裝置形成小型化。 接下來，說明空氣濾淸裝置2 5的副室4 8的作用。 第6圖（a )〜（c )係說明本發明中的副室的作用 的說明圖。 第6圖（a )中，當漏氣流進入副室4 8的第一副室 4 8 a內的話，漏氣中所包含的氣體成分以及已經成爲霧 狀的機油成分，將會通過迷宮構造5 2內，也就是第一凸 壁4 9與第二凸壁5 1之間的間隙，而流入第二副室4 8 b內。 此外，漏氣中所包含的液狀的機油成分F，則是被阻 隔在迷宮構造5 2而累積在第一副室48 a的底部。 第6圖（b)中，累積在第一副室48a的底部的機 油成分F，將會從設在空氣濾淸裝置外盒4 2的下部的吐 出管6 8流到吐出口 5 5 ，回到引擎1 6的曲軸箱3 5內 α 此時，吐出管6 8係將其內面下部平滑地連接到第一 副室4 8 a的下面，而且將其前端朝下側傾斜達到α角度 ，因此，可很容易從第一副室4 8 a內將機油成分F排出 去，所以不必特別在於第一副室4 8 a設置洩油孔。 第6圖（c )中，例如：引擎1 6停止運轉，且爲了 停放機車而使用了側腳架時，因爲是在於機車的側腳架這 一側設置著副室外蓋6 4，所以空氣濾淸裝置外盒4 2將 會傾斜達到；S角度，機油成分F將會累積在靠空氣濾淸裝 本紙張尺度適用中國國家標率（CNS ) Α4規格（210X297公釐） ---：---：----------V------痒 (请先Μ讀背面之注意事項再#*本頁) 經濟部智慧財產局員工消費合作社印製 -13- 經濟部智慧財產局員工消費合作社印製 448267 at B7 五、發明説明（11 ) 置外盒4 2的副室外蓋6 4這一側設置的吐出管的吐出孔 6 8 a這一側。此一結果，可讓機油成分F更確實地流回 到引擎1 6。 茲由以上的說明可知，因爲係在副室4 8的一個角落 形成迷宫構造5 2，所以從吐出管6 8噴出的漏氣中所含 的液狀機油成分將不會通過迷宮構造5 2，而能夠防止機 油成分進入到副室4 8的中央也就是第二副室4 8 b內。 因此，可從二次空氣供給管3 2的吸入口 5 4吸入不 含液狀機油成分的空氣，因而可提高排氣管5 6內的排氣 氣體的淨化能力。 又，藉由將漏氣回收管3 4 (請參考第1圖）的吐出 口 5 5 (請參考第二圖）連接到副室48的下部，將二次 空氣供給管3 2的吸入口 5 4連接到副室4 8的上部，而 得以將漏氣從位於副室4 8的近乎中央的連接管2 9的吸 入口吸入，並且使得該漏氣不會流入二次空氣供給管3 2 ，只讓已經通過濾心4 3 (請參考第4圖）後的不含塵土 等的空氣流入二次空氣供給管3 2。 此外，本發明雖然係採用第4圖所示般的有底圓筒狀 的濾心，但是本發明並不侷限於此，亦可採用平板狀的濾 心。這種情況下，與前述濾心內室4 7相對應的空間係配 置在平板狀濾心的側方的濾心側室，在於空氣濾淸裝置外 盒4 2內，係沿著空氣的流動方向，依序排列著濾心前室 :平板狀濾心；濾心側室：副室4 8。 ---^---:----裝；-------訂------線 (請先閲讀背面之注意事項再护.本頁) 本紙張尺度適用中國國家標準（CNS ) A4规格（210 X 297公釐） -14- A7 B7 五、發明説明（12 ) 【發明之效果】 本發明根據上述結構係可發揮以下的效果。 本案的第一發明的機車之空氣濾淸裝置，係將空氣濾 淸裝置外盒的乾淨側的空間的一部份分隔以形成副室，所 以副室可發揮共鳴器的功能，可將形成有副室的空氣濾淸 裝置外盒製作成小型化，所以可較爲不受空間上的限制地 將空氣濾淸裝置搭載到機車身上。 而且，在與傳統的將共鳴器另外個別地設在用來連通 空氣濾淸裝置外盒與化油器的連接管身上的情況進行較之 下，以塑膠來製作空氣濾淸裝置外盒的話，只要利用型模 僅以一次的射出成型就可以容易製得，因而可以降低製造 成本。 因此，不僅可使得空氣濾淸裝置製作成小型化以及降 低製造成本，又可降低吸氣音。 此外，漏氣回收管的出口和二次空氣供給管的入口係 連接在副室，所以可利用具有共鳴器功能的副室兼具有： 用來分離漏氣中的機油成分的漏氣回收槽；以及用來供應 二次空氣的空氣室的功能，因此，可較之將漏氣回收槽以 及空氣室與副室分開設置的情況更加地讓空氣濾淸裝置形 成小型化。 本案的第二發明的機車之空氣濾淸裝置係在副室的一 個角落形成迷宮構造，所以漏氣中所含的液狀機油成分將 不會通過迷宮構造，而能夠防止機油成分進入到副室的中 央。 本紙張尺度遑用中國國家梯準（CNi ) Λ4規格（210X297公釐） (請先閲讀背面之注$項再铲.本頁) 裝· 訂 經濟部智慧財產局員工消費合作社印製 d4B2l〇 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明説明（13 ) 本案的第三發明的機車之空氣濾淸裝置，係將濾心採 用有底圓筒型濾心，並且將這個濾心的底部突出到骯髒側 ，所以係可採用傳統的有底圓筒型濾心，並且只要將空氣 濾淸裝置外盒內的濾心安裝部的形狀形成與傳統的相同的 形狀的話，不必採用新設計的濾心即可使用，可抑制成本 的增加。 【圖面之簡單說明】 第1圖是具備本發明的空氣濾淸裝置的機車的側面圖 〇 第2圖聯繫本發明的空氣濾淸裝置與引擎的各路徑的 通路圖。 第3圖係本發明的空氣濾淸裝置的側面圖。 第4圖係第3圖中沿著4一4線的斷面圖。 第5圖係第3圖中沿著5—5線的斷面圖。 第6圖（a )〜（c )係說明本發明中的副室的作用 的說明圖。 第7圖係傳統的空氣濾淸裝置的側面圖。 【圖號說明】 1 0 :機車 1 6 :引擎 ,2 5 :空氣濾淸裝置 V - 乂 3 2 :二次空氣供給管 本紙張尺度適用中國躅家標準（CNS ) Α4规格（210X297公釐） -----^----¾-------ΐτ------^ (請先閲讀背面之注意Ϋ項再Μ本頁} -16- ^ ^ 8 ^ ο ( A7 B7 五、發明説明“） 4 3 3 4 4 4 4 4 8 2 4 5 4 5 5 5 置 心心 口口 管 裝 濾濾 入出 收 淸 { 'ί 造吸吐 回箱爐 側側 構{{ 氣軸氣心髒淨室宮口 口 漏曲空濾骯乾副迷入出 盒 外 室室 前後 I----J----^—— {請先閲讀背面之注意事項再ii 本頁) 訂 線 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS ) Α4规格（2丨0Χ297公釐） -17-C Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs First, the outside air (shown by the hollow arrow in the figure) flows from the suction port 5 of the air filter device 2 5 into the outer box of the air filter device 4 2 The anterior filter chamber 4 4 passes through the filter chamber 4 3, and the dust and the like contained in the outside air will be removed before flowing into the filter chamber 4 7. The air in the inner chamber of the filter core 4 7 flows into the auxiliary chamber 4 8 through the opening 4 3 a. From this auxiliary chamber 4 8, it mainly reaches the carburetor 2 8 through the connecting pipe 29 and passes through the suction pipe. 3 1 Flow into the engine with fuel This paper is in accordance with Chinese National Standard (CNS) A4 specifications (2! 0 > < 297 mm) -11-448267 Printed by the Consumers ’Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 5. The combustion chamber (not shown) of (9) 16 is explained. Then, the above-mentioned air system is combusted with fuel, and then discharged to the outside through an exhaust pipe 56, a muffler pipe 57 'and a tail pipe 58. In addition, a part of the air in the sub-chamber 4 8 flows into the secondary air supply pipe 32 from the suction port 5 4 above the first sub-chamber 4 8 b of the sub-chamber 4 8, and the flow rate is adjusted by the flow rate. After the valve 33 is adjusted, it flows into the exhaust pipe 56 from the discharge port 61 of the secondary air supply pipe 32. As a result, components such as H C and. NO contained in the exhaust gas in the exhaust pipe 56 will be oxidized by the air, and then discharged to the outside through the muffler pipe 57 and the tail pipe 5 8. When the engine 16 is running, a part of the combustion gas flowing from the combustion chamber into the crankcase 35 will be mixed with the misty oil and gas in the crankcase 35 and become a leak. Due to the pressure in the crankcase 35, this leak will pass through the leak recovery pipe 34 as shown by the dashed arrow in the figure, and flow from the outlet 5 5 into the first sub-chamber 4 8 Room 4 8 a. The leaked air in the first auxiliary chamber 4 8 a will pass through the labyrinth structure 5 2 and flow into the second auxiliary chamber 4 8 b, and then flow through the connecting pipe 29, the carburetor, and the suction pipe 31. The combustion chamber of the engine 16 becomes exhaust gas after being combusted, and is discharged from the tail pipe 58 to the outside. It can be seen from the above description that the discharge port of the leak recovery pipe 34 and the suction port 5 4 of the secondary air supply pipe 32 are connected to the sub chamber 4 8, so the sub chamber 4 8 having a resonator function can be used as well. There are: Leakage recovery tanks to separate the oil components in the leaked air: and air to supply the secondary air ^^? T. ^ (Please read the precautions on the reverse side first, then this page) Applicable to China Standards (CNS > A4 (210X297mm) -12- 4482 6 7 A7 B7 V. Function of the invention (to) chamber, so it can be compared to the leak recovery tank and the air chamber and When the auxiliary chambers are provided separately, the size of the air filter device is further reduced. Next, the functions of the auxiliary chambers 4 to 8 of the air filter device 25 will be described. FIGS. 6 (a) to (c) illustrate the present invention. An explanatory diagram of the function of the auxiliary chamber. In Fig. 6 (a), when the leaked air enters the first auxiliary chamber 4 8 a of the auxiliary chamber 48, the gas components contained in the leaked air and the mist has become The oil composition will pass through the labyrinth structure 5 2, that is, the gap between the first convex wall 49 and the second convex wall 51. And flows into the second auxiliary chamber 4 8 b. In addition, the liquid oil component F contained in the leak is blocked in the labyrinth structure 5 2 and accumulated at the bottom of the first auxiliary chamber 48 a. 6 In the figure (b), the oil component F accumulated in the bottom of the first auxiliary chamber 48a will flow from the discharge pipe 6 8 provided at the lower part of the outer box 4 2 of the air filter device to the discharge outlet 5 5 and return to the engine. 16 inside the crankcase 3 5 α At this time, the discharge pipe 6 8 series smoothly connects the lower part of the inner surface to the lower side of the first auxiliary chamber 4 8 a, and tilts its front end downward to the angle α, so The oil component F can be easily discharged from the first auxiliary chamber 4 8 a, so it is not necessary to provide a drain hole in the first auxiliary chamber 4 8 a. In Fig. 6 (c), for example, the engine 16 is stopped. When the side stand is used to park the locomotive, the sub-outdoor cover 6 4 is set on the side stand of the locomotive, so the outer box 4 2 of the air filter device will be tilted to reach S angle, the oil Component F will accumulate in air filters. This paper is sized for China National Standards (CNS) A4 (210X297 mm)- -: ---: ---------- V ------ Itching (Please read the precautions on the back before # * this page) Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs- 13- Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 448267 at B7 V. Description of the invention (11) The outer cover 6 of the outer box 4 2 is located on the side of the discharge hole 6 8 a of the discharge pipe. As a result, the oil component F can flow back to the engine 16 more surely. As can be seen from the above description, the labyrinth structure 5 2 is formed at one corner of the auxiliary chamber 4 8, so the sprayed from the discharge pipe 6 8 The liquid engine oil component contained in the leak will not pass through the labyrinth structure 52, and can prevent the engine oil component from entering the center of the sub chamber 48, that is, the second sub chamber 4 8 b. Therefore, the air containing no liquid engine oil component can be sucked from the suction port 54 of the secondary air supply pipe 32, and the exhaust gas purification ability in the exhaust pipe 56 can be improved. In addition, by connecting the outlet 5 5 (please refer to the second figure) of the leak air recovery pipe 3 4 (see the first figure) to the lower part of the sub chamber 48, the suction port 5 of the secondary air supply pipe 3 2 is connected. 4 is connected to the upper part of the sub-chamber 48, so that the leaked air can be sucked in from the suction port of the connection pipe 29 which is located at the center of the sub-chamber 4 8 and the leaked air does not flow into the secondary air supply pipe 3 2, Only the air that has passed through the filter element 4 3 (refer to Fig. 4) without dust or the like flows into the secondary air supply pipe 3 2. In addition, although the present invention uses a bottomed cylindrical filter element as shown in Fig. 4, the present invention is not limited to this, and a flat filter element may be used. In this case, the space corresponding to the above-mentioned filter inner chamber 47 is a filter-side chamber disposed to the side of the flat filter core, and is located in the air filter device outer box 4 2 along the air flow direction. An anterior filter chamber is arranged in order: a flat filter chamber; a side chamber of the filter chamber is an auxiliary chamber 48. --- ^ ---: ---- installation; ------- order ------ line (please read the precautions on the back before protecting. This page) This paper size applies to Chinese national standards (CNS) A4 specification (210 X 297 mm) -14- A7 B7 V. Description of the invention (12) [Effects of the invention] The present invention can exert the following effects according to the above structure. The air filter device for a locomotive according to the first invention of the present case is to partition a part of the space on the clean side of the outer box of the air filter device to form a sub-chamber. Therefore, the sub-chamber can function as a resonator and can form the sub-chamber. The outer box of the air filter device in the sub-chamber is made compact, so that the air filter device can be mounted on the vehicle body without being restricted by space. In addition, compared with the case where a conventional resonator is separately provided on the connecting pipe for connecting the outer box of the air filter device and the carburetor, if the outer box of the air filter device is made of plastic, As long as the mold is used for only one injection molding, it can be easily manufactured, and thus the manufacturing cost can be reduced. Therefore, not only can the air filter device be made compact and the manufacturing cost can be reduced, but also the intake sound can be reduced. In addition, the outlet of the leak recovery pipe and the inlet of the secondary air supply pipe are connected to the auxiliary chamber, so the auxiliary chamber having a resonator function can also be used: The leak recovery tank for separating the oil component in the leak ; And the function of an air chamber for supplying secondary air, the size of the air filter device can be made smaller than the case where the leak recovery tank and the air chamber are separately provided from the auxiliary chamber. The air filter device for a locomotive according to the second invention of the present invention forms a labyrinth structure at one corner of the auxiliary room, so the liquid oil component contained in the leak will not pass through the labyrinth structure, and the oil component can be prevented from entering the auxiliary room. The center. The size of this paper uses the Chinese National Standard (CNi) Λ4 specification (210X297 mm) (Please read the note on the back before shovel. This page) Binding and printing printed by d4B2l0A7 of the Intellectual Property Bureau Staff Consumer Cooperatives B7 Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. 5. Description of the invention (13) The air filter device for the locomotive of the third invention in this case is a bottomed cylindrical filter, and the filter The bottom protrudes to the dirty side, so a traditional bottomed cylindrical filter can be used. As long as the shape of the filter mounting part in the outer box of the air filter unit is the same as the traditional one, it is not necessary to use a new one. The designed filter can be used immediately, which can suppress the increase in cost. [Brief description of the drawing] Fig. 1 is a side view of a locomotive equipped with the air filter device of the present invention. Fig. 2 is a path diagram connecting each path of the air filter device and the engine of the present invention. Fig. 3 is a side view of an air filter device of the present invention. Figure 4 is a sectional view taken along line 4-4 in Figure 3. Figure 5 is a sectional view taken along line 5-5 in Figure 3. Figs. 6 (a) to (c) are explanatory diagrams for explaining the function of the subchamber in the present invention. Fig. 7 is a side view of a conventional air filter device. [Illustration of drawing number] 1 0: Locomotive 1 6: Engine, 2 5: Air filter unit V-乂 3 2: Secondary air supply pipe This paper size is applicable to China National Standard (CNS) Α4 specification (210X297 mm) ----- ^ ---- ¾ ------- ΐτ ------ ^ (Please read the note on the back first and then this page} -16- ^ ^ 8 ^ ο (A7 B7 V. Description of the invention ") 4 3 3 4 4 4 4 4 8 2 4 5 4 5 5 5 Centered mouth opening tube filter filter in and out collection {'ί Make suction and return to the furnace side structure {{气 轴Qi heart clean room Miyaguchi mouth leak air filter Dirty deputy before and after entering and exiting the outer chamber of the box I ---- J ---- ^ —— {Please read the precautions on the back before this page) Ministry of Economic Affairs The paper size printed by the Intellectual Property Bureau employee consumer cooperative is applicable to the Chinese National Standard (CNS) Α4 specification (2 丨 0 × 297 mm) -17-