M403555 五、新型說明： 【新型所屬之技術領域】 本創作係與汽車排氣管路有關，更詳而言之，尤指使排氣管可產 生適當迴壓幫助引擎扭力輸出、消除排氣亂流及嗓音之設計。 【先前技術】M403555 V. New description: [New technical field] This creation department is related to automobile exhaust pipe. In more detail, especially the exhaust pipe can generate appropriate back pressure to help the engine torque output and eliminate exhaust turbulence. And the design of the voice. [Prior Art]
内燃機引擎汽車的作動原理，例如四行程的汽油引擎，其設計是 使活塞上下反覆二次，亦即在引擎回轉二次之間做吸氣、壓縮、膨脹、 排氣四種動作，俾將汽油、柴油等石化類燃料混入空氣喷霧，藉火星 塞所產生電氣火花來點火，使燃料在汽缸中點燃爆發，以利用膨脹的 壓力轉變為旋轉力帶動輪軸旋轉傳動。 石化燃料在汽缸中點燃後所造成之廢氣則藉由排氣管等裝置將 其排放至大氣環境中；然而，廢氣排放時所產生之氣體衝擊力量，會 於排氣管内產生衝擊噪音，因此，如第一圖圖面所示，其係為一種習 用的排氣管消音結構’包含有一外管1及一穿設過該外管】内部之内 管2，該外管1及内管2間填充設有消音棉等緩衝_3，且該内管？ 之壁面上設有複數之消音孔4，當廢氣經由排氣管輪送至該内管2入口 處時，一部分之氣體可藉由各消音孔4分散至外管彳及内管2間，藉 以降低廢氣排放之衝擊力量，並藉由該緩衝材料3產生消音吸震之作胃 用，而經過消音吸震後之氣體流至該内管2出口時，會再由各消立孔4 回流之内管2後再一併排出。 此裡為狀消日、，，。構，其内官2係為且迎官狀，僅能依 靠自然之壓力差使部份氣體經由消音孔4分散至緩衝材料3，並 氣體膨脹空間之設計’其所能產生之降壓、緩衝及消音之效果_為、 3 M403555 限。 再者，排氣過程中所產生的迴壓也關係著引擎輸出能力。過低的 迴壓可能造成燃燒火焰直接衝出排氣門，將排氣氣門燒毀，所以必須 有適度的迴壓來抵擋排氣門開啟時所衝出的火焰，而且迴壓若是過 低，亦會造成引擎扭力輸出衰退的反效果。而上述習用之消音結構其 内管2並無迴壓設計，容易有扭力輸出不足之問題。 此外，上述習用之消音結構其排氣流量固定，當引擎高速運轉時， 單位時_排氣量大量增加，料導賴音結構無法順利排氣，而致 使引擎轉速無法提升。 【新型内容】 綜合上開先前技術的缺點，大致上包括習用消音結構之緩衝及消 音效果有限以及迴壓過^^動力輸出不足等缺陷。而鑑於解決上述多項 缺點，本案提出一種改良式消音結構，該消音結構具有可使排放氣體 充分緩衝及消音效果、並可產生足夠迴壓等優點。 本案一種改良式消音結構，其係至少包含有： 外琦，該外筒内係設有兩隔板，藉以將該外筒之内部依序區分 為一第一緩衝空間、一膨脹氣室及一第二緩衝空間； —進氣管，其一端係連通於該外筒外部，另一端係連通至該膨脹 氣至’且該端並具有一口徑縮減之迴壓段；以及， 一排氣管，其一端係連通於該膨脹氣室，另一端係連通至該外筒 外部β 本案達成功效之一，係在於藉由該膨脹氣室之設置’使引擎之廢 氣由進氣官進人該膨脹氣室時，可產生排氣緩衝之效果，以作為急速 排氡之緩衝空間，進而提升引擎馬力；並可藉由氣體膨脹、降壓以減 M403555 低排氣噪音之產生。 本案達成功效之二，該進氣管之迴壓段係可產生一排氣迴壓，以 使提升引擎之輸出扭力。 本案達成功效之三，該排氣管於該膨脹氣室内設有一呈喇八口狀 之引導段，該進氣管之迴壓段與該排氣管之引導段係呈直線狀排列設 置，可有效加強廢氣排出之順暢度，並避免氣體亂流與噪音之產生。 本案達成功效之四，該進氣管相對於該膨脹氣室之管壁上穿設有 複數排氣孔，可加大進氣管之排氣速度，並防止引擎高速運轉時之馬 力流失問題。 【實施方式】 為便於說明本案於上述新型内容一攔中所表示的中心思想，茲以 具體實施例表達。實施例中各種不同物件係按適於例舉說明之比例， 而非按實際元件的比例予以缯製，合先敘明。 如第二圖〜第C9圖圖面所示，本創作〜種改良式消音結構，其係由 一具膨脹氣室之外筒10、一進氣管20以及一排氣管30所組成。 該外筒10係可為一内部中空之直圓營所構成，其兩端係呈封閉 狀’且内部係設有兩概呈平行間隔設置之隔板n、12，該等隔板n、 12上設有一穿孔^、121及複數導流孔112、122，藉以將該外筒 1〇之内部依序區分為-第—緩衝空間14、―膨脹氣室15及一第二緩 衝空間16 ; 該進氣管20係為-中空之直圓管，其口徑小於該外筒1〇，該進 氣官20係設置於該外_ 10其中一封閉端處；進氣管2〇之一端係由該 外筒10之外部穿過該第一緩衝空間14，其另一端係穿過該隔板糾上 之穿孔111 ’以連通於該膨脹氣室14;其中，該進氣管2〇於膨脹氣室 5 L之端Γ係具有，縮減之迴壓段21，且該進氣㈣相對於該第 間14之官壁上穿設有複數消音孔22 ;再者該進氣管扣相 對於膨脹氣室彳5之管壁上亦穿設有複數排氣孔a; 〜:排乱& 30係為-中空之直圓管其口徑亦小於該外筒1〇，該 氣g 30係&於外筒1()相對於該進氣管扣之另一封閉端處排氣管 _之一端係自該膨脹氣室15穿設過該_2之穿孔121，並穿過該 緩衝工間16 ’以連通至該外筒1〇外部；其中該排氣管加相對 於該膨脹氣室15之-端係設有—味增加之引導段31，刻導⑽ 係呈—口徑往舰氣室15内部漸擴之佩時，且該排氣管30相對 於該第二緩衝即6之管虹穿設树朗音孔32 ;再者該進氣 管之迴紐21 _觀管3Q之㈣㈣係呈直雜排列設置， 且該迴紐21與引導段31間係有一間隔距離； 其中’該第-緩衝空間14與第二緩衝空間16内並設有一由消音 棉與白鐵鞋少其巾-種材料所構舰贿料彳7。 明瞭上述本案詳細結構後，以下係針對本案之動作原理逐一詳細 說明： 如第五圖所示，當該進氣管20外露於外筒1〇之一端係可供以管 路連通至將處’俾靖引擎所之廢以丨導至本_肖音結構 内。s廢氣進入該進氣管20内時，一部份之氣體由該迴麼段21與膨 脹氣室15處之消音孔22 ’進入該膨脹氣室15内，由於該膨脹氣室15 之管徑、空間大於進氣管2G，氣體進人該膨脹氣室15後可產生膨脹 降壓之效果，以作為急速排氣之緩衝空間，再加上該迴壓段21與引導 段31間係有-間隔距離，以產生非連貫的開放排氣設計，進一步可提 升引擎輸出馬力、降健氣噪音。且該口徑職之迴紐21可使氣體 M403555 流經時產生-迴動量，藉以使引擎保持一適當之引擎迴壓防止因 引擎迴壓過低導致引擎扭力不足。 另-部份氣體則藉由該等位於第—緩衝空間14處之消音孔22， 進入該第-緩衝㈣14内，並藉由該緩衝材料17吸震、減噪後，再 由隔板11之導流孔112流入該膨脹氣室15内。 再者’由於該引導段31係呈漸擴之制^八口狀，且該進氣管2〇之 迴紐21與該賊管3〇之引導段31係呈直線狀排列設置，可有效引 導廢氣自該排氣管3G排出，使得排氣更為順暢。 如第六圖所示’進氣管2〇相對於膨服氣室15管壁上之該等排氣 孔23自於其與膨脹氧室15係為直接相通，並無任何阻礙設計，可 於引擎高速運轉下而產生大量氣體時，將多餘之氣體直接排送至該膨 服氣室15内’以有效提升該進氣管2〇之流量，不但可避免高速運轉 引擎無法順利排氣之問題，同時可保持一定大小之迴壓，以兼顧引擎 之扭力及轉速輪出。 而該第二緩衝空間16之緩衝材料17，亦可與排氣管30之消音孔 22配合，藉由該緩衝材料17吸震、減嗓後，再回流至排氣管3〇排氣， 以確實減少排氣之噪音。 雖然本案是以一個最佳實施例做說明，但精於此技藝者能在不脫 離本案精神與範疇下做各種不同形式的改變。以上所舉實施例僅用以 說明本案而已，非用以限制本案之範圍。舉凡不違本案精神所從事的 種種修改或變化’俱屬本案申請專利範圍。 7 M403555 【圖式簡單說明】 第一圖係習用消音結構之立體局部剖面示意圖。 第二圖係本創作之立體外觀示意圖。 第三圖係本創作之立體局部剖面示意圖。 第四圖係本創作之剖面示意圖。 第五圖係本創作之排氣動作示意圖(一）。 第六圖係本創作之排氣動作示意圖(二）。 【主要元件符號說明】 外筒10 隔板11、12 穿孔 111、121 導流孔112、122 第一緩衝空間14 膨脹氣室15 第二緩衝空間16 緩衝材料17 進氣管20 迴壓段21 消音孔22 排氣孔23 排氣管30 引導段31 消音孔32The operating principle of the engine of an internal combustion engine, such as a four-stroke gasoline engine, is designed to make the piston up and down repeatedly, that is, to perform the functions of inhaling, compressing, expanding, and exhausting between the two revolutions of the engine. Petrochemical fuels such as diesel fuel are mixed into the air spray, and the electric spark generated by the spark plug is used to ignite, so that the fuel ignites and bursts in the cylinder, so that the expansion pressure is converted into the rotational force to drive the axle rotation transmission. The exhaust gas caused by the ignition of the fossil fuel in the cylinder is discharged to the atmosphere by means of an exhaust pipe or the like; however, the gas impact force generated by the exhaust gas generates impact noise in the exhaust pipe, therefore, As shown in the first figure, it is a conventional exhaust pipe muffling structure 'including an outer tube 1 and an inner tube 2 that passes through the outer tube. The outer tube 1 and the inner tube 2 Filled with cushioning _3 such as sound-absorbing cotton, and the inner tube? A plurality of sound-absorbing holes 4 are provided on the wall surface. When the exhaust gas is sent to the inlet of the inner tube 2 via the exhaust pipe, a part of the gas can be dispersed between the outer tube and the inner tube 2 by the sound-absorbing holes 4, thereby The impact force of the exhaust gas is reduced, and the cushioning material 3 generates a sound-absorbing and shock-absorbing stomach, and when the gas after the sound-absorbing and shock-absorbing is flown to the outlet of the inner tube 2, the inner tube is recirculated by each of the eliminating holes 4 2 and then discharged together. Here is the day, the day. The structure of the internal official 2 is welcoming and can only rely on the natural pressure difference to disperse part of the gas to the cushioning material 3 via the sound absorbing hole 4, and the design of the gas expansion space can be reduced, buffered and The effect of silence is _, 3 M403555 limit. Moreover, the back pressure generated during the exhaust process is also related to the engine output capability. Too low back pressure may cause the combustion flame to directly rush out of the exhaust valve and burn the exhaust valve, so there must be a moderate back pressure to withstand the flame rushed out when the exhaust valve is opened, and if the back pressure is too low, This will cause the counter-effect of the engine's torque output to decline. The above-mentioned conventional muffling structure has no back pressure design in the inner tube 2, and it is easy to have a problem of insufficient torque output. In addition, the above-mentioned conventional muffling structure has a fixed exhaust flow rate. When the engine is running at a high speed, the amount of exhaust gas per unit time is greatly increased, and the material guide structure cannot be smoothly exhausted, so that the engine speed cannot be increased. [New content] The shortcomings of the prior art are comprehensively integrated, which generally includes the buffering and muffling effects of the conventional muffling structure and the defects of back pressure and insufficient power output. In view of solving the above-mentioned plurality of shortcomings, the present invention proposes an improved muffling structure which has the advantages of sufficient buffering and silencing effect of exhaust gas, and sufficient back pressure. An improved sound absorbing structure of the present invention comprises at least: a outer baffle, wherein the outer cylinder is provided with two partitions, whereby the inner portion of the outer cylinder is sequentially divided into a first buffer space, an expansion air chamber and a a second buffer space; - an intake pipe having one end connected to the outside of the outer cylinder, the other end being connected to the expansion gas to the 'and the end having a reduced diameter back pressure section; and, an exhaust pipe, One end of the system is connected to the expansion chamber, and the other end is connected to the outside of the outer cylinder. One of the functions achieved by the expansion chamber is that the exhaust gas of the engine is introduced into the air by the intake officer. In the room, the effect of the exhaust buffer can be generated as a buffer space for rapid drainage, thereby improving the engine horsepower; and the gas can be expanded and depressurized to reduce the low exhaust noise of M403555. The second effect of the case is that the back pressure section of the intake pipe can generate an exhaust back pressure to increase the output torque of the engine. In the third case of the present invention, the exhaust pipe is provided with a guiding section in the shape of a bar shape, and the back pressure section of the intake pipe and the guiding section of the exhaust pipe are arranged in a straight line. Effectively enhance the smoothness of exhaust gas discharge and avoid the turbulence and noise generation of gas. In the fourth case of the present invention, the intake pipe is provided with a plurality of vent holes on the wall of the expansion plenum to increase the exhaust velocity of the intake pipe and prevent the horsepower loss during high-speed operation of the engine. [Embodiment] In order to facilitate the explanation of the central idea expressed in the above novel content, the present invention is expressed by a specific embodiment. The various items in the embodiments are in the proportions exemplified by the description and not in the proportion of the actual elements. As shown in the second to the C9 drawings, the present invention is an improved muffling structure composed of an expansion chamber outer cylinder 10, an intake pipe 20, and an exhaust pipe 30. The outer cylinder 10 can be an inner hollow straight round camp, the two ends of which are closed and the inner part is provided with two partitions n, 12 arranged in parallel, and the partitions n, 12 A perforation ^, 121 and a plurality of diversion holes 112, 122 are provided, so that the inside of the outer cylinder 1 is sequentially divided into a - first buffer space 14, an expansion gas chamber 15 and a second buffer space 16; The intake pipe 20 is a hollow straight pipe having a smaller diameter than the outer cylinder 1 , and the intake member 20 is disposed at one of the closed ends of the outer _ 10; The outer portion of the outer cylinder 10 passes through the first buffer space 14, and the other end thereof passes through the perforation 111' of the partition plate to communicate with the expansion air chamber 14; wherein the air inlet tube 2 is disposed in the expansion air chamber The end of the 5 L has a reduced back pressure section 21, and the intake air (four) is provided with a plurality of sound-absorbing holes 22 with respect to the official wall of the first space 14; and the intake pipe buckle is opposite to the expansion air chamber The wall of the 彳5 is also provided with a plurality of venting holes a; ～: 排排& 30 is a hollow straight tube whose caliber is also smaller than the outer cylinder 1〇, the gas g 30 series & Canister 1() One end of the exhaust pipe at the other closed end of the intake pipe buckle passes through the through hole 121 of the _2 from the expansion plenum 15 and passes through the buffering station 16' to communicate to the outside The outer side of the cylinder 1 is provided; wherein the exhaust pipe is provided with a guiding section 31 with an increased taste with respect to the end of the expanding air chamber 15, and the engraving (10) is a caliber to the inside of the naval chamber 15 And the exhaust pipe 30 is perpendicular to the second buffer, that is, the pipe of the pipe 6 is provided with a tree sound hole 32; and the (4) (four) of the return pipe 21 of the intake pipe is arranged in a straight line, and The returning point 21 and the guiding section 31 are spaced apart from each other; wherein the 'the first buffering space 14 and the second buffering space 16 are provided with a shackle of cotton and white iron shoes. 7. After clarifying the detailed structure of the above case, the following is a detailed description of the action principle of the present case: As shown in the fifth figure, when the intake pipe 20 is exposed at one end of the outer cylinder 1 可供, it can be connected to the pipe by the pipe. The appetite of the Jingjing engine is guided to the _Xiaoyin structure. When the exhaust gas enters the intake pipe 20, a part of the gas enters the expansion gas chamber 15 from the returning section 21 and the sound-absorbing hole 22' at the expansion gas chamber 15, due to the diameter of the expansion gas chamber 15. The space is larger than the intake pipe 2G, and the gas enters the expansion air chamber 15 to generate an effect of expanding and lowering the pressure, so as to serve as a buffer space for the rapid exhaust, and the back pressure section 21 and the guiding section 31 are coupled with - Separate distances to create a non-coherent open exhaust design that further enhances engine output horsepower and noise reduction. And the calibre of the calibre 21 can generate a return-return amount when the gas M403555 flows, so that the engine maintains an appropriate engine back pressure to prevent the engine from being under-torque due to low engine back pressure. The other part of the gas enters the first buffer (four) 14 by the silencing holes 22 located at the first buffer space 14, and is shock-absorbing and noise-reduced by the buffer material 17, and then guided by the partition 11. The flow holes 112 flow into the expansion gas chamber 15. Furthermore, since the guiding section 31 is in the form of a diverging system, the returning section 21 of the intake pipe 2 and the guiding section 31 of the thief pipe 3 are linearly arranged, which can effectively guide The exhaust gas is discharged from the exhaust pipe 3G, so that the exhaust gas is smoother. As shown in the sixth figure, the "intake pipe 2" is directly connected to the expansion venting chamber 15 from the venting opening 23 of the wall of the inflation plenum 15 without any hindrance design. When a large amount of gas is generated under high-speed operation, the excess gas is directly discharged into the expansion air chamber 15 to effectively increase the flow rate of the intake pipe 2, thereby avoiding the problem that the high-speed running engine cannot be smoothly exhausted. It can maintain a certain amount of back pressure to take into account the torque of the engine and the rotation speed. The buffer material 17 of the second buffer space 16 can also cooperate with the sound absorbing hole 22 of the exhaust pipe 30, and the buffer material 17 absorbs and reduces the enthalpy, and then flows back to the exhaust pipe 3 to exhaust. Reduce the noise of the exhaust. Although the present case is illustrated by a preferred embodiment, those skilled in the art can make various forms of changes without departing from the spirit and scope of the case. The above embodiments are only used to illustrate the present case and are not intended to limit the scope of the present invention. Any modification or change that is not in violation of the spirit of the case is the scope of patent application in this case. 7 M403555 [Simple description of the diagram] The first diagram is a three-dimensional partial cross-sectional view of the conventional silencing structure. The second picture is a three-dimensional appearance of the creation. The third figure is a three-dimensional partial cross-sectional view of the creation. The fourth picture is a schematic cross-section of the creation. The fifth picture is a schematic diagram of the exhaust operation of this creation (1). The sixth picture is a schematic diagram of the exhaust operation of this creation (2). [Description of main components] Outer cylinder 10 Separator 11, 12 Perforation 111, 121 Diversion hole 112, 122 First buffer space 14 Expansion chamber 15 Second buffer space 16 Buffer material 17 Intake tube 20 Back pressure section 21 Silencer Hole 22 vent hole 23 exhaust pipe 30 guide section 31 silencer hole 32