201124613 六、發明說明： 【發明所屬之技術領域】 本發明係關於燃氣引擎調節器之改良。 【先前技術】 習知上’諸如LPG的液化氣體被使用作爲用於液化氣 體引擎之燃料。在液化氣體的汽化之時，焦油係自氣體而 分離’且產生不良影響在配置於燃料通道之組件上。例如 ’焦油附著於諸如隔膜之橡膠部份，其劣化橡膠部份，附 著於燃料噴口，其堵塞該等孔，以及附著於閥，其使該等 閥不當定位在閥座上。爲避免此種及其它問題，技術被建 議以自氣化燃料分離並收集焦油，如以下文件得知，例如 ，日本實用新型公開案第S53 - 1 60526號（專利文件1)、 日本專利審查後公告第S59-7022號（專利文件2)、日本 專利審查後公告第S59-22063號（專利文件3)、日本專 利審查後公告第S63-8 3 09號（專利文件4 )及日本專利先 行公開申請案第20〇7-64〇36號（專利文件5)。 專利文件1揭示具有隔板之汽化器，該隔板將汽化器 的內側隔成上汽化室及下焦油室。汽化室內側包括複雜結 構。在引入汽化室之液化氣體的汽化之時，焦油係自氣體 分離且經由形成於隔板之通孔來收集於焦油室中。專利文 件2及專利文件3揭不相似配置。 於下溫度環境中，很可能的是，未汽化的液化氣體接 觸分離的焦油，以及焦油熔入未液化氣體且一起向下游流_ t b? -5- 201124613 動。爲防止此情況，專利文件4揭示一配置，其中燃料通 道切換板被提供用於自使用在低溫之燃料供應通道切換至 使用於高溫之燃料供應通道，以防止分離的焦油在低溫時 接觸且熔入未汽化的液化燃料氣體。 專利文件5揭示具有過濾器之移除裝置，該過濾器係 配置在汽化器的上游之燃料管線上，用於移除含於液化氣 體之樹膠材質。 汽化器的內部之複雜結構的設置導致不合意的大型配 置，如專利文件1、專利文件2及專利文件3。一般人可 能想到將複雜結構提供於空間受限之小型一般用途，而該 引擎難以模製。再者，焦油易於累積於合成配置中，以及 大量壓力流失可能發生。 於專利文件4的配置中，由於用於焦油分離及收集之 板的設置，用於焦油分離與收集之結構係複雜的。於專利 文件5的配置中，當過濾器係小時，網孔可能被樹膠堵塞 ，其需要經常維護操作。當大型過濾器被利用以避免經常 維護操作時，樹膠移除裝置變大。 於專利文件1至4的配置中，引擎冷卻水被循環至各 別汽化器以促進液化氣體燃料的汽化且自氣化燃料有效率 地分離。例如，此種配置係難以應用至小型一般用途引擎 ，因爲一般用途引擎通常是氣冷式，以及引擎熱的有效利 用係難以達成。因此，有替代結構之需求，該結構可被利 用於此種引擎，用於自其氣化燃料有效地分離及收集。 201124613 【發明內容】 因此，本發明的目的在於提供一種氣化引擎調節器， 其不僅可應用於小型一般用途引擎，而且是小型簡單的構 造，以及可自氣化燃料有效率地分離及收集焦油並防止該 焦油向下流動。 依據本發明，提供一種氣化引擎調節器，其適合於配 置在用於自燃料供應源而供應液化氣體燃料至燃氣引擎之 燃料供應通道中，用於使轉成氣體形式之該液化氣體燃料 減壓，該調節器包含：減壓室其界定於該調節器的內部， 且具有該液化氣體燃料進入所經過之氣體入口及該液化氣 體燃料排出所經過之氣體出口，該氣體入口係設置在該減 壓室的一端側，該氣體出口係設在自該一端側經由空間橫 向隔開之相對端側；及隔壁，其以圍繞該氣體出口之方式 而配置，且具有與該氣體出口相通之氣體通道，該氣體通 道具有配置在該氣體入口的上部之氣體通道入口。 起因於液化氣體燃料的汽化之氣化燃料經由氣體入口 流入減壓室，且通過該空間抵達配置在氣體入口的上方之 氣體通道的通道入口。然後，氣化燃料經由通道入口進入 氣體通道，且經由與氣體通道相通之氣體出口排出以向下 流動。 在液化氣體燃料的汽化之時自液化氣體燃料分離之焦 油經由氣體入口流入減壓室，藉由重力滴穿該空間且累積 在調節器的底部。 氣體入口及氣體出口係分別地配置在減壓室的一端及 201124613 相對端，該二端大大地隔開。再者，與氣體出口相通之氣 體通道的通道入口係配置在氣體入口的上方或更高。因此 ，經由氣體入口流入減壓室之焦油幾乎不可能抵達在氣體 出口。亦變得可能的是，使焦油易於由重力滴穿該空間且 容易收集。 因此，上述配置使習用配置所需之複雜結構、過濾^ 及通道切換裝置，且甚至於難以利用其中所產生的熱之小 型通用引擎中而達到焦油的有效分離與收集，以防止焦、油 自燃料供應系統的下游流動。 於較佳形式，氣化引擎調節器另包含：呈溝槽的形式 之垂直通道，其設置於該隔壁與該減壓室的周壁之間，用 於允許自該液化氣體燃料分離之焦油的通過。依據通道或 溝槽，附著於減壓室的周壁之焦油被防止進入氣體出口且 因此在可在預先被收集時免於向下流動。 合意的是，氣化引擎調節器另包含：壓力調節閥，用 於開/關該氣體入口；調節器槓桿，其單元地安裝至該壓 力調節閥；隔膜，用於覆蓋該減壓室的上端開口，該調節 器槓桿具有位在接近該壓力調節閥的部份之樞軸，且連接 至位在遠離該壓力調節閥的部份之隔膜；隔膜止動部，其 配置成接近該氣體入口且高於該氣體入口，用於限制該隔 膜朝向該減壓室的移動；及肋部，其延伸在該隔膜止動部 及隔壁之間。依據該肋部，焦油被防止進入氣體出口，且 因此在當時可被收集之時免於向下流動。 肋部可包括設在該隔壁78延續的位置之斷流部，用 -8- 201124613 於導引該焦油以沿者該斷流部流動。 【實施方式】 現在參照圖1，燃料供應設備1 〇包含：小氣缸12 ’ 充塡有例如’液化丁烷氣體作爲液化氣體燃料且容納於缸 殼11中；手動旋塞13，固定地配置於缸殻11中，用於切 換在出自氣缸之液化氣體燃料的流動與燃料流動的截斷之 間；汽化器1 6，用於利用產生於燃氣引擎1 4之熱將液化 热體燃料（液化丁垸）轉換成氣化燃料（丁院氣體），截 斷閥1 7，用於允許在汽化器1 6氣化之燃料在燃氣引擎操 作時的循環，以及用於阻擋氣化燃料在引擎未操作時的流 動：主調節器18，與截斷閥17 —體形成，用於使氣化燃 料減壓至預定壓力；及次調節器21，用於使主調節器18 所減壓之氣化燃料進一步減壓至大氣壓力。 次調節器2 1所減壓之氣化燃料被供應至混合器22， 混合器22在此處與空氣混合。合成的氣體/燃料混合物係 經由燃氣引擎的進氣口 14a而帶入燃燒室14b。. 參照號碼25至27標示燃料管線。負壓管線28使截 斷閥1 7與燃氣引擎1 4的曲軸箱1 4c相通。負壓係於燃氣 引擎的操作期間產生於曲軸箱Me內，且使截斷閥1 7開 啓。當燃氣引擎未操作時’無負壓產生在曲軸箱內且因此 截斷閥17保持關閉。截斷閥17及主調節器18 —起提供 與截斷閥結合的調節器單元3 0。 如圖2所示’截斷閥結合的調節器單元3 0包括二個 • 9 - 201124613 相鄰的塊件31、3 2，用於覆蓋一塊件3 1的側開口之蓋 3 3、用於覆蓋另一塊件3 2的側開口之罩件3 4、及安裝 塊件32的下部之杯件36。 截斷閥17包含：第一隔膜41，堅固定在塊件31及 件33之間；支撐板42，用於支撐第一隔膜41的內表面 桿件43安裝至支撐板42的中部；螺旋彈簧44，用於推 第一隔膜41及支撐板42朝向蓋件33;第二隔膜45， 接至可移動地通過塊件31之桿件43的末端；及截斷閥 部46，以與桿件43的末端對置關係來配置在塊件3 2上 塊件3 1包括凹部3 1 a，其與第一隔膜4 1結合地界 經由負壓管線28與燃氣引擎的曲軸箱l4c (見圖1)相 之負壓室48。相通管51係安裝在蓋件33上，用於使形 在蓋件33及第一隔膜41之間的大氣室52與大氣相通。 截斷閥體部46包含：閥座53，接合於形成於塊件 之下橫向通道32a ;支撐件54，用於支撐閥座53 ;閥 ，通過分別形成於閥座53及支撐件54之通孔53a、54a 及彈簧57，設置在閥支撐件54及閥56的一端之間，用 推動閥56於其關閉方向。 閥56包括設在其一端用於支撐彈簧57之彈簧支撐 56a、設在其相對端之閥頭56b、及用於連接彈簧支撐 56a及閥頭5 6b之連桿56c。 閥頭56b係藉由彈簧57頂著閥座53的回彈性而推 。於該圖中，閥頭5 6b被定位以關閉燃料通道6 1。也就 說，截斷閥1 7被關閉。 件 至 蓋 t 動 附 體 〇 定 通 成 3 2 56 » 於 部 部 動 是 -10- 201124613 燃料通道61包含：中央室63，形成於塊件31、32的 配合面且與汽化器16相通（見圖1);通孔53a、54a; 下橫向通道32a，閥頭56b的—部份容納於其中；垂直通 道32d，其一端連接至下橫向通道32a;及上橫向通道32e ，與垂直通道32d的相對端相通。上橫向通道32e係經由 未顯示之通道與設於主調節器18之減壓室64相通。 主調節器18包含：第三隔膜65堅固地固定於塊件32 與罩件34之間；壓板66’設在第三隔膜65的外表面上； 彈簧67 ’用於經由壓板66頂著形成於塊件32的止動部 32g來推動第三隔膜65;及杯件36。杯件36被用於在氣 體燃料通過儲存減壓室64時與氣化燃料一起流下之焦油 〇 藉由因此結合的截斷閥17及主調節器18，不再需要 連接截斷閥17及主調節器18之管線，藉此減少所需組件 的數量，並提供小型且精密之截斷閥結合的調節器。用於 配置管線之人工時變得不需要。組件數量及人工時的減少 導致生產成本的降低。 現參照圖3’其顯示具有第一構造的減壓室64之主調 節器1 8的側視圖。氣體入口 7丨係在減壓室M的—端形 成於塊件32，而氣體出口 72係在減壓室M的相對端而形 成於塊件32°氣體入口 71及氣體出口 72被配置成水平對 準。 t S ] 上與下隔膜止動部74、76係設於圍繞氣體入口 71之 入口側壁73，用於限制第三隔膜6 5的移動（見圖2 ) ^ -11 - 201124613 隔壁78係形成於以圍繞氣體出口 72之方式配置在氣體出 口 72周圍之出口側壁77。氣體通道81垂直地延伸穿過隔 壁78，且與氣體出口 72相通。參照81a標示設在氣體通 道81的頂端之氣體通道入口。參照81b標示設在氣體通 道81的底端之氣體通道出口。氣體通道入口 81a係配置 在氣體出口 72的上方’且位在比氣體入口 71更高的位準 〇 隔壁78係設置遠離減壓室64的圓形周壁84。具有溝 槽形式之垂直長通道85設在隔壁78及周壁84之間，用 於允許自氣化燃料分離之焦油的通道。以此配置，在周壁 84的汽化之時自氣化燃料分離之焦油及附著至周壁84的 上部，例如，被防止自移動超過至隔壁78以及向下游流 動通過氣體出口 72。 參照號碼86標示界定在氣體入口 ή及氣體出口 72 之間之空間，也就是說’在入口側壁73及包括隔壁7 8之 出口側壁77間。當焦油流過氣體入口 71進入減壓室64 時’焦油向下滴穿空間86進入杯件36(圖2)，且累積 於杯件3 6中。 現在轉到圖4，孔口 91係設在氣體入口 71。軸91係 安裝至入口側壁73’調節器槓桿93樞轉地支撐在軸91。 壓力調節閥94係安裝至調節器槓桿93的一端，用於開啓 /關閉孔口 91的開口。調節器桿96係安裝至調節器槓桿 93的相對端’調節器桿96隨後安裝至壓板66。 因此’當第三隔膜65及壓板66與減壓室64內側之 -12- .201124613 壓力一致地移動時，調節器槓桿9 3繞著軸9 2擺動因此開 及關調節閥94。 隔壁78的端表面78a係位於比隔膜止動部74及76 的端表面更深之塊件3 2的一部份（圖3 )。蓋板9 7係設 在減壓室64及隔壁78的端表面78a之間，用於覆蓋朝向 罩件3 4開啓之氣體通道8 1的開口。 回到圖3’蓋板97係經由公螺栓（未顯示）安裝至出 口側壁77以整個覆蓋端表面78a。參照號碼773標示用於 螺紋收納公螺栓之母螺拴。如圖4所示，氣體通道入口 8la (見圖3)及氣體通道出口 81b採取設於隔壁78的端 表面78a之溝槽的形式。甚至隔壁78被蓋板97關閉時， 液化氣體燃料可流經氣體通道入口 8 1 a，以及氣體通道8 ! 自氣體出口 72排出。 接著將參照圖5A及5B說明主調節器18的操作。 如圖5 A的白箭頭所示，流經氣體入口 7 1進入減壓室 64之氣化燃料移至隔壁78且流經氣體通道入口 8丨&至氣 體通道-81 ’自氣體出口 72流出然後流向次調節器21 (見 圖2 )。 流經氣體入口 71至減壓室64之焦油藉由重力落下穿 過空間86°當部份的焦油101經由氣體通道入口 81a進入 氣體通道8 1時’例如，該焦油部份以微滴的形式掉落， 且經由氣體通道出口 81b排入空間86，並因此被防止自氣 體出口 7 2流出。 接著參照圖5B ’落穿減壓室64內的空間86之焦油^ 201124613 微滴通過形成於減壓室64的周壁84之通孔，且累積於杯 件36。 現在參照圖6，其解說具有第二構造的減壓室之主調 節器的側視圖。圍繞氣體出口 72之隔壁1 1 1係設置成自 減壓室64的周壁84朝向氣體入口 71而突出。內室入口 Ilia及內室出口 111b係設在隔壁111的上與下部，內室 入口 111a及內室出口 111b與減壓室64及界定於隔壁111 的內部之內室112相通。 內室112朝向圖式的觀察者而開啓。內室入口 111a 及內室出口 111b包含形成於隔壁111的端表面之溝槽。 參照號碼113標示安裝至出口側壁77以便整個覆蓋內室 Π 2的開口之蓋板。 接著，參照圖7，其解說具有第三構造的減壓室之主 調節器的側視圖。圍繞氣體出口 72之隔壁1 2 1係設置成 自減壓室64的周壁84而突出，且具有側壁121a及下壁 121b。內室入口 121c及內室出口 121ci係設在側壁121a 及下壁121b，且與減壓室及界定於隔壁121之內室122相 通。 內室122朝向圖式的觀察者而敞開。內室入口 121c 及內室出口 121d包含形成於隔壁121的端表面之溝槽。 參照號碼1 23標示安裝至出口側壁77以便整個覆蓋內室 122的開口之蓋板。 藉由使隔壁1 2 1的側壁1 2 1 a形成來垂直延伸，如圖 所示，黏至周壁8 4的頂部之焦油在側壁1 2 1 a向下流至側 -14- .201124613 壁121a的下端，且滴入空間86。結果，焦油不太可能 由內室入口 121c進入內室122。 接著，參照圖8’其顯示具有第四構造的減壓室之 調節器的側視圖。弧形肋部1 3 1係以凸出方式形成在塊 上，且自上隔膜止動部74延伸至隔壁78。肋部131包 形成在隔壁7 8延續的位置之斷流部1 3 1 a。 當氣化燃料流出經由氣體入口 71而進入減壓室64 ，氣化燃料係朝向隔壁7 8導引在肋部1 3 1上方，如白 箭頭所示，其使燃料易於經由氣體通道入口 8 1 a進入氣 通道81。 在被肋部1 3 1阻擋時，經由氣體入口 7丨流入減壓 64之焦油101幾乎不能移動超過至隔壁78的氣體通道 口 81a。當焦油101移至肋部131上方、通過肋部131 上表面1 3 1 b且移至隔壁7 8時，例如，焦油1 〇 1經由斷 部1 3 1 a流至隔壁7 8的內表面7 8 a上，且最後自隔壁滴 空間8 6。結果，變得可能可靠地防止焦油1 〇丨經由氣體 口 72向下游流動。 總結以上所述’本發明提供主調節器1 8，如圖1至 所示’其將被配置於燃料供應通道中，用於自小氣缸 作爲燃料供應源而供應液化氣體燃料至燃氣引擎1 4，以 低變成氣體形式之液化氣體燃料的壓力。主調節器1 8 括內部界定的減壓室64，其依序包括液化氣體燃料進入 氣體入口 71及氣體燃料流出的氣體出口 72。氣體入口 係配置在減壓室64的一端或側，而氣體出口 72係與氣 經 主 件 括 時 色 體 室 入 的 流 入 出 3 12 降 包 之 7 1 體[S ] -15- 201124613 入口 7 1相對地設置在減壓室6 4的相對側，其中有空間§ 6 插置在氣體入口 71及氣體出口 72之間。隔壁78係配置 成圍繞氣體出口 72，且設有氣體通道81以便與氣體出口 72相通。氣體通道81的氣體通道入口 81a係配置在氣體 入口 71的上部。因此，氣體入口 7 Γ及氣體出口 72係相 互分開很大。再者，氣體通道入口 81a·定位在氣體入口 71 的上部。結果，經由氣體入口 71流入減壓室64之焦油幾 乎不能抵達氣體出口 72。再者’焦油係藉由重力導引以滴 穿空間8 3，因此致能焦油的收集。 如自以上所述可隨時領悟到，本發明配置提供不具如 過去所用之複雜結構的簡單焦油分離/收集結構、過濾器 及通道切換裝置。本發明焦油分離/收集結構甚至可有效 作用於小型通用引擎，其中難以利用所產生的熱且可防止 焦油流至燃料供應設備1 0的下游。 應注意到，與圖8相關地，肋部1 3 1已被說明，延伸 在上隔膜止動部7 4及隔壁7 8之間，而肋部1 3 1可被替代 地設置以延伸在圖6的隔膜止動部74及隔壁1 1 1之間。 【圖式簡單說明】 圖1係顯示利用依據本發明的主調節器之燃氣引擎燃 料供應設備的系統圖。 圖2係解說與截斷閥結合且具有第一構造的減壓室之 調節器的剖面圖。 圖3係沿著圖2的線3 - 3所取之剖面圖。 -16 - 201124613 圖4係沿者圖3的線4 - 4所取之剖面圖。 圖5A及5B係解說主調節器的操作之示意圖。 圖6係解說具有第二構造的減壓室之主調節器的側視 圖。 圖7係解說具有第三構造的減壓室之主調節器的側視 圖。 圖8係解說具有第四構造的減壓室之主調節器的側視 圖。 【主要元件符號說明】 1 〇 :燃料供應設備 1 1 :缸殼 1 2 :小氣缸 13 :手動旋塞 14 :燃氣引擎 1 4a :進氣口 .14b :燃燒室 14c :曲軸箱 1 6 :汽化器 1 7 :截斷閥 1 8 :主調節器 2 1 :次調節器 22 :混合器 2 5 :燃料管線 s -17- 201124613 2 6 :燃料管線 2 7 :燃料管線 2 8 :負壓管線 3 0 :截斷閥結合的調節器單元 3 1 :塊件 3 1 a :凹部 3 2 :塊件 3 2 a :下橫向通道 32d :垂直通道 3 2 g :止動部 3 2 e :上橫向通道 3 3 :蓋件 3 4 :罩件 3 6 :杯件 4 1 :第一隔膜 _ 4 2 :支撐板 43 :桿件 44 :螺旋彈簧 45 :第二隔膜 46 :截斷閥體部 5 1 :相通管 5 2 :大氣室 5 3 :閥座 5 3 a :通孔 -18- 201124613 54 :支撐件 5 4 a :通孔 5 6 :閥 56a :彈簧支撐部 5 6 b :閥頭 56c :連桿 5 7 :彈簧 6 1 :燃料通道 63 :中央室 64 :減壓室 6 5 :第三隔膜 6 6 :壓板 6 7 :彈簧 71 :氣體入口 72 :氣體出口 7 3 :入口側壁 74 :上隔膜止動部 76 :下隔膜止動部 7 7 :出口側壁 7 7 a :母螺栓 7 8 :隔壁 7 8 a :端表面 81 :氣體通道 8 1 a :氣體通道入口 -19 201124613 81b :氣體通道出口 8 4 :圓形周壁 85 :垂直長通道 86 :空間 91 :孑L 口 92 :軸 93 :調節器槓桿 94 :壓力調節閥 96 :調節器桿 9 7 :蓋板 1 〇 1 :焦油 1 1 1 :隔壁 1 1 1 a :內室入口 1 1 lb :內室出口 1 1 2 :內室 1 13 :蓋板 1 2 1 :隔壁 1 2 1 a :側壁 1 2 1 b :下壁 121c :內室入口 1 2 1 d :內室出口 1 22 :內室 1 2 3 :蓋板 1 3 1 :弧形肋部 -20 201124613 1 3 1 a :斷流部 1 3 1 b :上表面 -21201124613 VI. Description of the Invention: TECHNICAL FIELD OF THE INVENTION The present invention relates to improvements in gas engine regulators. [Prior Art] Conventionally, a liquefied gas such as LPG is used as a fuel for a liquefied gas engine. At the time of vaporization of the liquefied gas, the tar is separated from the gas' and adversely affects the components disposed on the fuel passage. For example, the tar adheres to a rubber portion such as a diaphragm that degrades the rubber portion, attaches to the fuel nozzle, blocks the holes, and adheres to the valve, which improperly positions the valves on the valve seat. In order to avoid this and other problems, the technology is proposed to separate and collect tar from self-gasified fuel, as described in the following documents, for example, Japanese Utility Model Publication No. S53-1 60526 (Patent Document 1), after Japanese Patent Examination Announcement No. S59-7022 (Patent Document 2), Japanese Patent Examination Announcement No. S59-22063 (Patent Document 3), Japanese Patent Examination Announcement No. S63-8 3 09 (Patent Document 4) and Japanese Patent First Disclosure Application No. 20〇7-64〇36 (Patent Document 5). Patent Document 1 discloses a vaporizer having a partition that partitions the inside of the vaporizer into an upper vaporization chamber and a lower tar chamber. The interior of the vaporization chamber includes a complex structure. At the time of introduction of the vaporization of the liquefied gas in the vaporization chamber, the tar is separated from the gas and collected in the tar chamber through the through holes formed in the separator. Patent Document 2 and Patent Document 3 disclose dissimilar configurations. In the lower temperature environment, it is likely that the unvaporized liquefied gas contacts the separated tar, and the tar is melted into the unliquefied gas and flows together downstream _ t b? -5 - 201124613. In order to prevent this, Patent Document 4 discloses a configuration in which a fuel passage switching plate is provided for switching from a low-temperature fuel supply passage to a fuel supply passage for use at a high temperature to prevent the separated tar from contacting and melting at a low temperature. Into the liquefied fuel gas that is not vaporized. Patent Document 5 discloses a removal device having a filter disposed on a fuel line upstream of a vaporizer for removing a gum material contained in a liquefied gas. The complicated structure of the interior of the carburetor results in an undesirably large configuration such as Patent Document 1, Patent Document 2, and Patent Document 3. The average person may think of providing complex structures in small, general-purpose applications where space is limited and the engine is difficult to mold. Furthermore, tar tends to accumulate in the synthetic configuration, and a large amount of pressure loss can occur. In the configuration of Patent Document 4, the structure for tar separation and collection is complicated due to the arrangement of the plates for tar separation and collection. In the configuration of Patent Document 5, when the filter is small, the mesh may be clogged with gum, which requires frequent maintenance operations. The gum removal device becomes larger when large filters are utilized to avoid frequent maintenance operations. In the configurations of Patent Documents 1 to 4, engine cooling water is circulated to the respective vaporizers to promote vaporization of the liquefied gas fuel and efficiently separate from the gasification fuel. For example, such a configuration is difficult to apply to small general purpose engines because general purpose engines are typically air cooled and the efficient use of engine heat is difficult to achieve. Therefore, there is a need for an alternative structure that can be utilized in such an engine for efficient separation and collection from its vaporized fuel. SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a gasification engine regulator that can be applied not only to small general-purpose engines, but also to a small and simple construction, and that can efficiently separate and collect tar from a gasified fuel. And prevent the tar from flowing downwards. According to the present invention, there is provided a gasification engine regulator adapted to be disposed in a fuel supply passage for supplying liquefied gas fuel from a fuel supply source to a gas engine for converting the liquefied gas fuel into a gaseous form Under reduced pressure, the regulator includes: a decompression chamber defined inside the regulator, and having a gas inlet through which the liquefied gas fuel enters and a gas outlet through which the liquefied gas fuel is discharged, the gas inlet is disposed at One end side of the decompression chamber, the gas outlet is disposed on an opposite end side laterally spaced from the one end side via a space; and a partition wall disposed to surround the gas outlet and having a communication with the gas outlet A gas passage having a gas passage inlet disposed at an upper portion of the gas inlet. The vaporized fuel resulting from the vaporization of the liquefied gas fuel flows into the decompression chamber through the gas inlet, and passes through the space to the passage inlet of the gas passage disposed above the gas inlet. Then, the vaporized fuel enters the gas passage via the passage inlet, and is discharged downward through the gas outlet communicating with the gas passage. The tar separated from the liquefied gas fuel at the time of vaporization of the liquefied gas fuel flows into the decompression chamber through the gas inlet, dripping through the space by gravity and accumulating at the bottom of the regulator. The gas inlet and the gas outlet are respectively disposed at one end of the decompression chamber and the opposite end of 201124613, and the two ends are largely separated. Further, the passage inlet of the gas passage communicating with the gas outlet is disposed above the gas inlet or higher. Therefore, the tar flowing into the decompression chamber through the gas inlet is almost impossible to reach the gas outlet. It has also become possible to make the tar easy to drip through the space by gravity and to collect easily. Therefore, the above configuration enables the complex structure, the filter and the channel switching device required for the conventional configuration, and even the small common engine which is difficult to utilize the heat generated therein to achieve effective separation and collection of the tar to prevent coke and oil The downstream of the fuel supply system flows. In a preferred form, the gasification engine regulator further comprises: a vertical passage in the form of a groove disposed between the partition wall and the peripheral wall of the decompression chamber for allowing passage of tar separated from the liquefied gas fuel . Depending on the passage or the groove, the tar attached to the peripheral wall of the decompression chamber is prevented from entering the gas outlet and thus is prevented from flowing downward when it is previously collected. Desirably, the gasification engine regulator further includes: a pressure regulating valve for opening/closing the gas inlet; a regulator lever unit mounted to the pressure regulating valve; and a diaphragm for covering an upper end of the decompression chamber An opening having a pivot located in a portion proximate the pressure regulating valve and coupled to a diaphragm positioned away from the pressure regulating valve; a diaphragm stop configured to be adjacent the gas inlet and Above the gas inlet, for restricting movement of the diaphragm toward the decompression chamber; and a rib extending between the diaphragm stop and the partition wall. Depending on the ribs, the tar is prevented from entering the gas outlet and is therefore protected from downward flow when it can be collected at the time. The rib may include a shut-off portion provided at a position where the partition wall 78 continues, and the tar is guided by -8-201124613 to flow along the cut-off portion. [Embodiment] Referring now to Figure 1, a fuel supply apparatus 1 includes a small cylinder 12' filled with, for example, 'liquefied butane gas as a liquefied gas fuel and housed in a cylinder casing 11; a manual cock 13 fixedly disposed in the cylinder In the casing 11, for switching between the flow of the liquefied gas fuel from the cylinder and the cutoff of the fuel flow; the carburetor 16 for liquefying the hot body fuel (liquefied butadiene) by the heat generated from the gas engine 14 Converted into a gasification fuel (Dingyuan gas), a shut-off valve 17 for allowing circulation of the fuel vaporized by the vaporizer 16 during operation of the gas engine, and for blocking the flow of the vaporized fuel when the engine is not operating a main regulator 18 formed integrally with the shut-off valve 17 for depressurizing the vaporized fuel to a predetermined pressure, and a secondary regulator 21 for further decompressing the decompressed gasification fuel of the main regulator 18 to Atmospheric pressure. The vaporized fuel decompressed by the secondary regulator 21 is supplied to a mixer 22 where it is mixed with air. The combined gas/fuel mixture is brought into the combustion chamber 14b via the gas inlet 14a of the gas engine. Reference numerals 25 to 27 designate the fuel line. The negative pressure line 28 communicates the shutoff valve 17 with the crankcase 14c of the gas engine 14. The negative pressure is generated in the crankcase Me during operation of the gas engine and causes the shutoff valve 17 to open. When the gas engine is not operating, no negative pressure is generated in the crankcase and thus the shutoff valve 17 remains closed. The shut-off valve 17 and the main regulator 18 together provide a regulator unit 30 that is coupled to the shut-off valve. As shown in Fig. 2, the 'cut-off valve-incorporated regulator unit 30 includes two 9-201124613 adjacent block members 31, 3 2 for covering a side opening cover 3 of a piece 31, for covering A cover member 34 of the other side of the piece 32 and a cup 36 of the lower portion of the block member 32. The shutoff valve 17 includes: a first diaphragm 41 fixedly secured between the block member 31 and the member 33; a support plate 42 for supporting the inner surface rod member 43 of the first diaphragm 41 to be mounted to the middle portion of the support plate 42; the coil spring 44 For pushing the first diaphragm 41 and the support plate 42 toward the cover member 33; the second diaphragm 45 is connected to the end of the rod member 43 that is movably passed through the block member 31; and the valve portion 46 is cut off to be in contact with the rod member 43 The end piece is disposed on the block member 3 2 and the block member 3 1 includes a recess 3 1 a which is combined with the first diaphragm 41 to pass through the vacuum line 28 to the crankcase 12c of the gas engine (see Fig. 1). The negative pressure chamber 48. The communication tube 51 is attached to the cover member 33 for allowing the atmospheric chamber 52 formed between the cover member 33 and the first diaphragm 41 to communicate with the atmosphere. The shutoff valve body portion 46 includes a valve seat 53 that is engaged with a lateral passage 32a formed under the block member, a support member 54 for supporting the valve seat 53, and a valve that passes through the through hole formed in the valve seat 53 and the support member 54, respectively. 53a, 54a and a spring 57 are disposed between the valve support member 54 and one end of the valve 56 in the closing direction thereof by the push valve 56. The valve 56 includes a spring support 56a provided at one end thereof for supporting the spring 57, a valve head 56b provided at the opposite end thereof, and a link 56c for connecting the spring support 56a and the valve head 56b. The valve head 56b is pushed by the springback of the spring 57 against the valve seat 53. In this figure, the valve head 56b is positioned to close the fuel passage 61. That is, the shutoff valve 17 is closed. From the piece to the cover t, the moving body is set to 3 2 56 » The part is -10- 201124613 The fuel passage 61 comprises: a central chamber 63 formed on the mating faces of the blocks 31, 32 and communicating with the carburetor 16 (see Figure 1); through holes 53a, 54a; lower transverse passage 32a, the portion of the valve head 56b is received therein; vertical passage 32d, one end of which is connected to the lower transverse passage 32a; and the upper transverse passage 32e, and the vertical passage 32d The opposite end is connected. The upper lateral passage 32e communicates with the decompression chamber 64 provided in the main regulator 18 via a passage not shown. The main regulator 18 includes: a third diaphragm 65 is firmly fixed between the block member 32 and the cover member 34; a pressure plate 66' is provided on the outer surface of the third diaphragm 65; and a spring 67' is formed for being pressed against the pressure plate 66 The stopper portion 32g of the block member 32 pushes the third diaphragm 65; and the cup member 36. The cup member 36 is used for the tar that flows down with the vaporized fuel when the gaseous fuel passes through the storage decompression chamber 64. By the combination of the shut-off valve 17 and the main regulator 18, it is no longer necessary to connect the shut-off valve 17 and the main regulator. The 18 line, thereby reducing the number of components required, and providing a small and sophisticated shut-off valve combined regulator. It is not necessary to configure the labor of the pipeline. The reduction in the number of components and labor costs leads to a reduction in production costs. Referring now to Figure 3', a side view of the main regulator 18 having the decompression chamber 64 of the first configuration is shown. The gas inlet 7 is formed at the end of the decompression chamber M at the end of the block 32, and the gas outlet 72 is formed at the opposite end of the decompression chamber M to form a block 32. The gas inlet 71 and the gas outlet 72 are arranged horizontally. alignment. t S ] The upper and lower diaphragm stops 74, 76 are disposed at the inlet side wall 73 surrounding the gas inlet 71 for restricting the movement of the third diaphragm 65 (see Fig. 2) ^ -11 - 201124613 The partition 78 is formed in The outlet side wall 77 around the gas outlet 72 is disposed around the gas outlet 72. The gas passage 81 extends vertically through the partition wall 78 and communicates with the gas outlet 72. The gas passage inlet provided at the top end of the gas passage 81 is indicated by reference to 81a. The gas passage outlet provided at the bottom end of the gas passage 81 is indicated by reference numeral 81b. The gas passage inlet 81a is disposed above the gas outlet 72 and is positioned at a higher level than the gas inlet 71. The partition wall 78 is provided with a circular peripheral wall 84 away from the decompression chamber 64. A vertical long passage 85 having a grooved form is provided between the partition wall 78 and the peripheral wall 84 for passage of tar which allows separation of the self-gasified fuel. With this configuration, the tar separated from the vaporized fuel at the time of vaporization of the peripheral wall 84 and the upper portion attached to the peripheral wall 84 are prevented from moving beyond the partition wall 78 and flowing downstream through the gas outlet 72, for example. Reference numeral 86 designates a space defined between the gas inlet port and the gas outlet port 72, that is, between the inlet side wall 73 and the outlet side wall 77 including the partition wall 78. As the tar flows through the gas inlet 71 into the decompression chamber 64, the tar drops down through the space 86 into the cup 36 (Fig. 2) and accumulates in the cup 36. Turning now to Figure 4, orifice 91 is provided at gas inlet 71. The shaft 91 is mounted to the inlet side wall 73' and the adjuster lever 93 is pivotally supported on the shaft 91. A pressure regulating valve 94 is attached to one end of the regulator lever 93 for opening/closing the opening of the orifice 91. The adjuster lever 96 is mounted to the opposite end of the adjuster lever 93. The adjuster lever 96 is then mounted to the pressure plate 66. Therefore, when the third diaphragm 65 and the pressure plate 66 move in unison with the pressure of -12-.201124613 inside the decompression chamber 64, the regulator lever 93 swings about the shaft 9 2 to open and close the regulating valve 94. The end surface 78a of the partition wall 78 is located at a portion of the block member 3 2 which is deeper than the end surfaces of the diaphragm stopper portions 74 and 76 (Fig. 3). A cover plate 7 is provided between the decompression chamber 64 and the end surface 78a of the partition wall 78 for covering the opening of the gas passage 81 opened toward the cover member 34. Returning to Fig. 3', the cover plate 97 is attached to the outlet side wall 77 via a male bolt (not shown) to entirely cover the end surface 78a. Reference numeral 773 indicates a female thread for threading the male bolt. As shown in Fig. 4, the gas passage inlet 8la (see Fig. 3) and the gas passage outlet 81b take the form of a groove provided at the end surface 78a of the partition wall 78. Even when the partition wall 78 is closed by the cover plate 97, the liquefied gas fuel can flow through the gas passage inlet 8 1 a, and the gas passage 8 ! is discharged from the gas outlet 72. Next, the operation of the main regulator 18 will be described with reference to Figs. 5A and 5B. As indicated by the white arrows in Fig. 5A, the vaporized fuel flowing through the gas inlet 71 into the decompression chamber 64 is moved to the partition wall 78 and flows through the gas passage inlet 8 & to the gas passage -81 'flow from the gas outlet 72. It then flows to the secondary regulator 21 (see Figure 2). The tar flowing through the gas inlet 71 to the decompression chamber 64 is dropped by gravity by the space 86. When a portion of the tar 101 enters the gas passage 81 through the gas passage inlet 81a, 'for example, the tar portion is in the form of droplets It is dropped and discharged into the space 86 via the gas passage outlet 81b, and is thus prevented from flowing out of the gas outlet 72. Next, referring to Fig. 5B', the tar of the space 86 in the decompression chamber 64 is passed through the through hole formed in the peripheral wall 84 of the decompression chamber 64, and accumulated in the cup 36. Referring now to Figure 6, a side view of a main regulator having a decompression chamber of a second configuration is illustrated. The partition wall 1 1 1 surrounding the gas outlet 72 is provided to protrude from the peripheral wall 84 of the decompression chamber 64 toward the gas inlet 71. The inner chamber inlet Ilia and the inner chamber outlet 111b are provided in the upper and lower portions of the partition wall 111, and the inner chamber inlet 111a and the inner chamber outlet 111b communicate with the decompression chamber 64 and the inner chamber 112 defined inside the partition wall 111. The inner chamber 112 opens toward the viewer of the drawing. The inner chamber inlet 111a and the inner chamber outlet 111b include grooves formed on the end surface of the partition wall 111. Reference numeral 113 designates a cover plate that is attached to the outlet side wall 77 so as to cover the entire opening of the inner chamber Π 2 . Next, referring to Fig. 7, a side view of the main regulator of the decompression chamber having the third configuration will be explained. The partition wall 1 2 1 surrounding the gas outlet 72 is provided to protrude from the peripheral wall 84 of the decompression chamber 64, and has a side wall 121a and a lower wall 121b. The inner chamber inlet 121c and the inner chamber outlet 121ci are provided in the side wall 121a and the lower wall 121b, and communicate with the decompression chamber and the inner chamber 122 defined by the partition wall 121. The inner chamber 122 is open toward the viewer of the drawing. The inner chamber inlet 121c and the inner chamber outlet 121d include grooves formed in the end surface of the partition wall 121. Reference numeral 1 23 designates a cover plate that is attached to the outlet side wall 77 so as to cover the entire opening of the inner chamber 122. By vertically forming the side wall 1 2 1 a of the partition wall 1 2 1 , as shown, the tar sticking to the top of the peripheral wall 84 flows down the side wall 1 2 1 a to the side 14-.201124613 wall 121a The lower end is dropped into the space 86. As a result, tar is less likely to enter the inner chamber 122 from the inner chamber inlet 121c. Next, a side view of the regulator having the decompression chamber of the fourth configuration is shown with reference to Fig. 8'. The curved ribs 133 are formed on the block in a convex manner and extend from the upper diaphragm stop portion 74 to the partition wall 78. The rib 131 is formed in a cutout portion 13 1 a formed at a position where the partition wall 78 continues. When the vaporized fuel exits through the gas inlet 71 into the decompression chamber 64, the vaporized fuel is directed over the ribs 113 from the partition wall 78, as indicated by the white arrow, which facilitates fuel flow through the gas passage inlet 8 1 a enters the gas passage 81. When blocked by the ribs 133, the tar 101 flowing into the decompression 64 via the gas inlet 7 几乎 hardly moves beyond the gas passage opening 81a of the partition wall 78. When the tar 101 moves over the rib 131, passes through the upper surface 13 1 b of the rib 131 and moves to the partition 7 8 , for example, the tar 1 〇 1 flows to the inner surface 7 of the partition 7 8 via the broken portion 1 3 1 a . 8 a, and finally the space 8 6 from the partition wall. As a result, it becomes possible to reliably prevent the tar 1 流动 from flowing downstream via the gas port 72. Summarizing the above, the present invention provides a main regulator 18, as shown in FIGS. 1 to 2, which will be disposed in a fuel supply passage for supplying liquefied gas fuel from a small cylinder as a fuel supply source to the gas engine 1 4. The pressure of the liquefied gas fuel in the form of a low gas. The main regulator 18 includes an internally defined decompression chamber 64 that sequentially includes a liquefied gas fuel entering the gas inlet 71 and a gas outlet 72 from which the gaseous fuel flows. The gas inlet is disposed at one end or side of the decompression chamber 64, and the gas outlet 72 is connected to the gas inlet and outlet chambers of the main body, and the inlet of the color chamber is 7 1 body [S ] -15- 201124613 inlet 7 1 is disposed opposite to the opposite side of the decompression chamber 64, with a space § 6 interposed between the gas inlet 71 and the gas outlet 72. The partition wall 78 is configured to surround the gas outlet 72 and is provided with a gas passage 81 to communicate with the gas outlet 72. The gas passage inlet 81a of the gas passage 81 is disposed at the upper portion of the gas inlet 71. Therefore, the gas inlet 7 气体 and the gas outlet 72 are largely separated from each other. Further, the gas passage inlet 81a is positioned at the upper portion of the gas inlet 71. As a result, the tar flowing into the decompression chamber 64 via the gas inlet 71 hardly reaches the gas outlet 72. Furthermore, the tar is guided by gravity to drip through the space 83, thus enabling the collection of tar. As can be appreciated from the foregoing, the present invention provides a simple tar separation/collection structure, filter and channel switching device that does not have the complex structure as used in the past. The tar separation/collection structure of the present invention can be effectively applied even to a small general-purpose engine in which it is difficult to utilize the generated heat and prevent the tar from flowing downstream of the fuel supply device 10. It should be noted that, in connection with Fig. 8, the ribs 133 have been described extending between the upper diaphragm stop portion 74 and the partition wall 718, and the ribs 133 may alternatively be provided to extend in the figure. 6 between the diaphragm stop portion 74 and the partition wall 1 1 1 . BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a system diagram showing a gas engine fuel supply apparatus using a main regulator according to the present invention. Fig. 2 is a cross-sectional view showing a regulator of a decompression chamber having a first configuration combined with a shutoff valve. Figure 3 is a cross-sectional view taken along line 3-3 of Figure 2. -16 - 201124613 Figure 4 is a cross-sectional view taken along line 4 - 4 of Figure 3. 5A and 5B are schematic views illustrating the operation of the main regulator. Fig. 6 is a side elevational view showing the main regulator of the decompression chamber having the second configuration. Fig. 7 is a side elevational view showing the main regulator of the decompression chamber having the third configuration. Fig. 8 is a side elevational view showing the main regulator of the decompression chamber having the fourth configuration. [Main component symbol description] 1 〇: Fuel supply equipment 1 1 : Cylinder housing 1 2 : Small cylinder 13 : Manual cock 14 : Gas engine 1 4a : Air inlet . 14b : Combustion chamber 14c : Crankcase 1 6 : Vaporizer 1 7 : cut-off valve 1 8 : main regulator 2 1 : secondary regulator 22 : mixer 2 5 : fuel line s -17- 201124613 2 6 : fuel line 2 7 : fuel line 2 8 : negative pressure line 3 0 : The shut-off valve combined regulator unit 3 1 : block 3 1 a : recess 3 2 : block 3 2 a : lower transverse passage 32d: vertical passage 3 2 g : stop 3 2 e : upper transverse passage 3 3 : Cover member 3 4 : cover member 3 6 : cup member 4 1 : first diaphragm _ 4 2 : support plate 43 : rod member 44 : coil spring 45 : second diaphragm 46 : cut-off valve body portion 5 1 : communication tube 5 2 : Atmospheric chamber 5 3 : Seat 5 3 a : Through hole -18- 201124613 54 : Support 5 4 a : Through hole 5 6 : Valve 56a : Spring support 5 6 b : Valve head 56c : Connecting rod 5 7 : Spring 6 1 : fuel passage 63 : central chamber 64 : decompression chamber 6 5 : third diaphragm 6 6 : pressure plate 6 7 : spring 71 : gas inlet 72 : gas outlet 7 3 : inlet side wall 74 : upper diaphragm stop 76 : lower diaphragm stop 7 7 : outlet side wall 7 7 a : female bolt 7 8 : partition wall 7 8 a : end surface 81 : gas passage 8 1 a : gas passage inlet -19 201124613 81b : gas passage outlet 8 4 : circular peripheral wall 85 : vertical long passage 86 : space 91 :孑L port 92: shaft 93: adjuster lever 94: pressure regulating valve 96: adjuster lever 9 7 : cover 1 〇 1 : tar 1 1 1 : partition 1 1 1 a : inner chamber inlet 1 1 lb : inner chamber Outlet 1 1 2 : inner chamber 1 13 : cover plate 1 2 1 : partition wall 1 2 1 a : side wall 1 2 1 b : lower wall 121c : inner chamber inlet 1 2 1 d : inner chamber outlet 1 22 : inner chamber 1 2 3: cover plate 1 3 1 : curved rib -20 201124613 1 3 1 a : cut-off portion 1 3 1 b : upper surface - 21