200835847 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種引擎導風罩結構，尤私μ 尤知於一種可以更換導 流機構而不需變更導風罩設計之結構。 【先前技術】 按，一般強制氣冷式引擎，如圖一所示， ^ y、’主要係由引擎動力200835847 IX. Description of the Invention: [Technical Field] The present invention relates to an engine air hood structure, and is particularly useful in a structure in which a flow guiding mechanism can be replaced without changing the design of the air hood. [Prior Art] Press, generally forced air-cooled engine, as shown in Figure 1, ^ y, 'mainly powered by the engine
系統1以及一通過引擎動力系統1之冷卻導風罩2所纟成1A 卻導風罩2係將引擎動力系統1包覆，外双令、人 、、絲 卜界之冷卻風係被引擎1 的風扇1 1強制的，經由風扇罩2 3的入nr η 〇 幻入風口21進入導風罩2 内，並藉由該導風罩2的導引，冷卻風得以 ^ |風侍以吹襄引擎1，藉此來 將引擎1所產生之高溫，經由熱交換及埶卓 佚及熱顿伽，縛風罩2 的出風Π 2 2排出，藉此來令引料達到降溫之作用。 然而，引擎1的最高溫度係發生在排氣蜂i 2，而習用導風 罩2並無任何構造，來使外界進入導風罩2的冷卻風可以直接的 吹襄該排氣埠12，由於引料排氣埠12處之高溫，益法有效 的獲得降溫，因此會造成引擎1整體的降溫不均。另、如圖一、 二所示，引擎1於汽缸犯3上沿點火星塞]4周邊設有二冷卻 風通迢13 i，藉由該冷卻風通道i 3 i之設置，期能令部分之 冷卻風進人冷卻風通道131内，藉此來令汽魄3能獲得有 效之降溫’料用導風罩2並無任何構造，來使外界進入導風罩 =冷^可以有效的被導人冷卻風通道i 3丄内。再請參閲圖 一不’㈣界之冷卻風翻料的風扇經由風扇罩2 5 200835847 3的入風口 21冷λ措 進入導風罩2内，導致=罩2内時，由於該冷卻風係呈切線方式 同時風扇！！下半^卻風會撞擊至導風罩2之下方罩體， 卻回吸，使L 諸颇轉縣2之付罩體的冷 _使_鱗2崎—紊舰， = 迴轉會料解2把轉_邮$，& HZ之 的減少，進而降低引幻之冷卻效率。叫2内冷部風 ㈣料無法有效的令引擎w 而會造成引擎；[的降、的降Μ，進 使引擎岐柯嚴重者會 習_ _ = 進聰丨擎1的制壽命縮短。是《、 白用的¥風罩2實有改善之必*。 而仍=Γ知之料導風罩之結構在使用上具有上述之缺失， 驗，針對之處，發明人乃憑藉其多年從事相關行業之經 \丨自知鮮冷卻機構作—研經過多次的試驗盘 t正後，終獲致本發明。 ’、 【發明内容】 本發明之主要目的，乃在提供一種引擎導風罩結構，該導風 糸可將引擎的汽林體與汽缸頭包覆，其特徵在於，該導風罩 之:罩蓋設置有導錢構，料錢構財—本體、—侧邊封塾 底部雌，綱对細、餘_麟，該導流部 2冷職料火星塞，_㈣縣—斜面，該斜面可將冷卻 風轉向至賴’使其均勻冷卻，該輯部可有效防止冷卻風被 6 200835847 風扇回吸；藉由將導流機構予以模組化，並設置於導風罩之 蓋上，當脾之祕麵纽時，鑛針料韻構倾 計，而不需將整個導風I重新設計，不但可留縣有部品，減= 部品之樣式’進而可減少導風罩之製造成本，且藉由該導流機槿 可以消除導風罩過奴㈣，以減少冷卻風之紊流，並達到有效 刀配冷卻氣w S升引擎整體的散熱效果，進*來增進引的蚀 用功效。 便 【實施方式】 為使貴審查員能更易於了解本發明之結構及所能達成之功 效，茲配合圖式說明如後： 該’請參閱圖四所示，本發明之引擎導風罩結構之引擎3， 匕括有曲軸彳目3 ；[、與曲轴箱3丨連結之曲柄軸3 2、架設於曲 轴相31上之汽缸本體3 3、伸置於汽缸本體3 3巾之活塞3 4 口又於a缸本體3 3上之汽缸頭3 5，以及被曲柄轴3 2所帶 ^之冷部風扇3 6。另該汽缸本體3 3及汽缸頭3 5為了增加散 …、之面％ ’會於汽紅本體3 3及汽缸頭3 5上設置複數個間隔排 】之政熱片3 31、3 51 ;當油氣進人燃燒室3 8後，經火星 C\ 點火燃爆，其膨脹之氣體壓力則會產生推力推動活塞3 4 4乍卜 -r- —、下之往復運動，當活塞3 4下降時，進氣閥開啟，引導混 由氣進入燃燒室3 8内燃燒，燃燒後之廢氣則由排氣閥迅速排 並、、、二由排氣埠排出至排氣管（圖中未示出）中。而當引擎1運 7 200835847 作時’曲柄軸32會帶動冷卻 風扇罩4 5的冷卻風入σ 4 i進入f運作，將外界的冷卻風由 Μ缸本體Mi 钱罩4 .麵過導風罩4 之間的冷卻風通路，使冷卻風將汽 ΓΓ35上之物331、351上的熱量（即 心L走’而達到冷卻細體3 3 目 使引擎動力祕3可在正紅作溫歧轉。 次請參_五所示，該導風罩4係罩蓋於謂的汽缸 3與汽缸頭3 5周外，該導風罩杨由上罩蓋“及下罩蓋4 b所構成’該下罩蓋4 b上且古、人” /、有一冷郃風出口42，並開設有供 排氣管（圖式巾㈣）穿_嫩4 4。紅罩蓋4 a開 没有供進錄（圖式中未示出）穿通之進氣穿孔4 3，其中，請 參閱圖六师’峨輪观m流機構5， 該導流機構5具有—本體51、—侧邊封塾5 2及-底部封墊5 3。該本體5 1係為-板體’該本體5丄上設有一導流部5工工、 -轉向部512及阻擋部5!3，該導流部5 i i係平行於該下 罩蓋4b之底部’該轉向部512係為-斜面，該斜面下方延設 有一水平之齡部5 1 2 1，而該輯部5 1 3縣直於下罩签 4 b之底部；該側邊封墊5 2係設置於本體5丄之導流部5工丄 及阻撞部513之侧邊’並具有—凸耳5 2 i，該凸耳5 2工可 供螺固元件S鎖設；該底部封墊5 3係設置於本體5 ^底部， 該底部封整5 3之底面設有可供_元件s i螺設之螺孔5 3 8 200835847 .1 ;其中’該側邊封塾5 2與底部封墊5 3皆設有嵌合槽 . 5 3 2來供本體51喪合。 本發明之導流機構5於實施時，錢將側细郎2 封塾5 3利用篏合槽5 2 2、5 3 2喪合於本體5丄上，再= 合後之導流機構5以螺固元件S、s i螺設於導風罩4之下= 4 b上，組裝後之導流機構5，則如圖七所示。 > 於實施時，請參關四、七、八、九所示，當曲柄轴32冊 動冷卻風扇3 6運轉時，外界的冷卻風將由冷卻風入口么工進^ 導風罩4内，藉由該導流機構5本體5 1Jl方之導流部$ 1 1可 將冷部風導向汽紅頭3 5及火星塞3 7，以降低汽叙頭3 5及火 星塞3 7座體之溫度，而轉向部5丄2之斜面可將冷卻風轉向至 =本體3 3之散熱片3 31，有效的分配冷卻風的氣流，使引 擎3周邊的溫度均料低’該阻擔部5丄3則可有效防止冷卻風 .被風扇3 6回吸，以避轉解4狀冷卻風料足，輕生奈 流。 本發明齡將導流機構5付模組化，並以螺固元件s、$ 1螺設於導風罩4之下罩蓋4 b上，當引擎3之規格有所更改 時，僅需針對導流機構5予以變更設計，而不需將整個導風罩^ 重新設計，不但可留_有部品，減少部品之樣式，進而可減少 導風罩4之製造成本，且藉由導流機構5之設置，可消除導風罩 4内過大之空間，並將冷卻風作有效之分配，確實減少冷卻風之 9 200835847 紊流，以提升引擎整體的散熱效果，進而來增進引擎的使用功效。 綜上所述，本發明之引擎導風罩結構，藉由於導風罩4上設 置一導流機構，以有效分配冷卻風之氣流，使引擎3能均勻散熱， 以避免引擎3散熱溫度不均造成機件之變形，而可改善習知之缺 失，已較習用者增進功效，顯已具有新穎性及進步性之要件，爰 依法提出發明之申請，祈請貴審查委員之詳鑑，惠賜為准予專 利之審定，至感德便。 【圖式簡單說明】 圖一係習知氣冷式引擎之示意圖。 圖二係引擎汽缸頭冷卻風通道示意圖。 圖三係習知導風罩冷卻風行進示意圖。 圖四係本發明引擎之剖視示意圖。 圖五本發明導風罩之立體分解圖。The system 1 and the cooling air hood 2 of the engine power system 1 are formed into a 1A, but the air hood 2 is used to wrap the engine power system 1 , and the cooling wind system of the outer double, human, and silk circles is used by the engine 1 The fan 11 is forced to enter the air hood 2 via the inlet nr η 〇 入 21 21 of the fan cover 2 3 , and by the guidance of the air hood 2 , the cooling wind is blown The engine 1 is used to discharge the high temperature generated by the engine 1 through the heat exchange, the heat exhaust, and the air outlet 222 of the air hood 2, thereby reducing the temperature of the material. However, the maximum temperature of the engine 1 occurs in the exhaust bee i 2, and the conventional air hood 2 does not have any configuration, so that the outside air entering the air hood 2 can directly blow the exhaust dam 12 due to The high temperature at the exhaust enthalpy 12 is used to effectively reduce the temperature, which will cause the overall temperature of the engine 1 to be uneven. In addition, as shown in FIG. 1 and FIG. 2, the engine 1 is provided with two cooling air passages 13 i along the periphery of the ignition star plug 4 on the cylinder 3, and the setting of the cooling air passage i 3 i can be made. The cooling air enters the cooling air passage 131, thereby enabling the steam raft 3 to obtain an effective cooling. The material hood 2 has no structure to allow the outside to enter the air hood = cold can be effectively guided. The person cools the air channel i 3丄. Referring to Figure 1 again, the cooling fan of the (4) boundary is cooled into the air hood 2 via the air inlet 21 of the fan cover 2 5 200835847 3, resulting in the cooling air system when the cover 2 is inside. Stereo-lined fan at the same time! ! In the lower half, the wind will hit the lower cover of the air hood 2, but suck back, so that the L 诸 颇 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县Reduce the transfer of _mail $, & HZ, and thus reduce the cooling efficiency of the illusion. Called 2 inner cold wind (four) material can not effectively make the engine w and will cause the engine; [falling, lowering, entering the engine 岐 严重 serious people will learn _ _ = Jin Cong 丨 1 system life is shortened. It is "the white hood 2 hood is really necessary to improve*. However, the structure of the windshield that still knows the material has the above-mentioned defects in the use, and the inventors have relied on their many years of experience in the relevant industries to study the fresh cooling mechanism. After the test disc t is positive, the invention is finally obtained. The main object of the present invention is to provide an engine air hood structure which can cover a steam forest body and a cylinder head of an engine, wherein the air hood is: a cover The cover is provided with a guiding structure, and the money is constructed to be wealth--the body, the side is sealed at the bottom of the female, the pair is fine, the remaining _ lin, the diversion part 2 is cold-filled with a spark, and the _(four) county-slope, the slope can be The cooling wind turns to Lai' to make it evenly cooled, and the part can effectively prevent the cooling air from being sucked back by the fan of 200835847; by modularizing the guiding mechanism and setting it on the cover of the air guiding hood, when the spleen When the secret surface is New Zealand, the mineral needle material has a rhyme structure, and it is not necessary to redesign the entire air guide I, not only can the county have a part, but the style of the part can reduce the manufacturing cost of the windshield, and by The deflector can eliminate the air hood over the slave (4) to reduce the turbulence of the cooling air, and achieve the effective heat dissipation effect of the effective knife-cooling gas w S liter engine, and improve the effect of the etch. [Embodiment] In order to make it easier for the examiner to understand the structure of the present invention and the achievable effects, the following description will be given with reference to the following: Please refer to FIG. 4 for the structure of the engine hood of the present invention. The engine 3 includes a crankshaft eye 3; [, a crankshaft 3 coupled to the crankcase 3丨, a cylinder body 3 erected on the crankshaft phase 31, and a piston extending to the cylinder body 3 3 The port is again on the cylinder head 35 of the cylinder body 3 3, and the cold section fan 36 which is carried by the crankshaft 3 2 . In addition, the cylinder body 3 3 and the cylinder head 35 are provided with a plurality of spacers on the steam red body 3 3 and the cylinder head 3 5 in order to increase the amount of the surface. After the oil and gas enters the combustion chamber 3 8 and is ignited by the spark of CX, the gas pressure of the expansion will generate thrust to push the piston 3 4 4 - -r--, the next reciprocating motion, when the piston 34 falls, The intake valve is opened to guide the mixed gas into the combustion chamber 38 to be combusted, and the exhausted gas is quickly exhausted by the exhaust valve, and discharged from the exhaust port to the exhaust pipe (not shown). . When the engine 1 is 7 200835847, the crankshaft 32 will drive the cooling fan cover 45 to the cooling air inlet σ 4 i to enter the f operation, and the external cooling air will be covered by the cylinder body Mi. 4 between the cooling air passages, so that the cooling wind will heat the heat on the objects 331, 351 on the steam 35 (ie, the heart L goes 'to reach the cooling fine body 3 3 mesh to make the engine power secret 3 can be turned in positive red As shown in FIG. 5, the air hood 4 is covered by the cylinder 3 and the cylinder head 35, and the air hood is composed of the upper cover "and the lower cover 4b". The lower cover 4 b and the ancient, the person " /, has a cold hurricane outlet 42 , and is provided with an exhaust pipe (pattern towel (4)) to wear _ tender 4 4. The red cover 4 a is not available for entry ( The air intake perforation 4 3 is not shown in the drawings, wherein, please refer to the figure of the sixth division, the m-flow mechanism 5, the flow guiding mechanism 5 has a body 51, a side seal 5 2 and - The bottom cover pad 53. The body 51 is a plate body. The body 5 is provided with a flow guiding portion 5, a steering portion 512 and a blocking portion 5! 3, and the flow guiding portion 5 ii is parallel to The bottom of the lower cover 4b' the steering The 512 is a beveled surface, and a horizontal portion 5 1 2 1 is extended below the inclined surface, and the portion 5 1 3 is straight to the bottom of the lower cover 4 b; the side seal 52 is disposed on the body The side of the deflector 5 and the side of the blocking portion 513 'has a lug 5 2 i, the lug 5 2 can be locked by the screwing element S; the bottom gland 5 3 is set At the bottom of the body 5 ^, the bottom surface of the bottom seal 5 3 is provided with a screw hole 5 3 8 200835847 . 1 for the element Si to be screwed; wherein the side seal 5 2 and the bottom seal 5 3 are provided There is a fitting groove. 5 3 2 is used to fuse the body 51. When the flow guiding mechanism 5 of the present invention is implemented, the money will be side-by-side 2 sealing 塾 5 3 using the mixing groove 5 2 2, 5 3 2 The flow guiding mechanism 5 is screwed on the underside of the air hood 4 = 4 b, and the assembled flow guiding mechanism 5 is as shown in FIG. 7 . > In the implementation, please refer to the four, seven, eight, and nine. When the crankshaft 32 moves the cooling fan 36, the external cooling air will be injected into the windshield 4 by the cooling air inlet. The flow guiding portion $1 1 of the main body 5 1J1 of the flow guiding mechanism 5 can be cold The wind guides the steam red head 3 5 and the spark plug 3 7 to reduce the temperature of the steam head 3 5 and the Mars plug 3 7 body, and the inclined surface of the turning portion 5 丄 2 can turn the cooling wind to the heat sink of the body 3 3 3 31. Effectively distribute the airflow of the cooling air so that the temperature around the engine 3 is low. The blocking part 5丄3 can effectively prevent the cooling air. It is sucked back by the fan 36 to avoid the cooling of the 4-shaped cooling wind. The invention is characterized in that the flow guiding mechanism 5 is modularized, and the screwing elements s, $1 are screwed on the cover 4 b under the air hood 4, when the specifications of the engine 3 are When the change is made, it is only necessary to change the design of the flow guiding mechanism 5, and the entire air guiding cover is not required to be redesigned, and not only the parts can be left, the parts are reduced, and the manufacturing cost of the air guiding cover 4 can be reduced. Moreover, by the arrangement of the flow guiding mechanism 5, the excessive space in the air guiding hood 4 can be eliminated, and the cooling air can be effectively distributed, and the turbulence of the cooling wind 9 200835847 can be surely reduced to improve the heat dissipation effect of the engine as a whole. Improve the efficiency of the engine. In summary, the engine air hood structure of the present invention is provided with a flow guiding mechanism on the air guiding hood 4 to effectively distribute the airflow of the cooling air, so that the engine 3 can uniformly dissipate heat, thereby avoiding uneven heat dissipation temperature of the engine 3. Causes the deformation of the machine parts, and can improve the lack of conventional knowledge. It has improved the efficacy compared with the conventional users. It has become a novelty and progressive element, and the application for invention is filed according to law, and the detailed review of the review committee is invited. Approved for the examination of patents, to the sense of virtue. [Simple diagram of the diagram] Figure 1 is a schematic diagram of a conventional air-cooled engine. Figure 2 is a schematic diagram of the engine cylinder head cooling air passage. Figure 3 is a schematic diagram of the conventional windshield cooling wind travel. Figure 4 is a schematic cross-sectional view of the engine of the present invention. Figure 5 is an exploded perspective view of the air duct of the present invention.
圖六係本發明導流機構之立體分解圖。 圖七、八、九係本發明冷卻風行進示意圖 【主要元件符號說明】 1 2排氣蜂 131冷卻風通道 15汽紅本體 2 2出風〇 1引擎動力系統11風扇 1 3汽缸頭 4火星塞 2導風罩 21入風口 2 3風扇罩 1 200835847 3引擎 4導風罩 5導流機構Figure 6 is an exploded perspective view of the flow guiding mechanism of the present invention. Figure 7, eight, nine is the schematic diagram of the cooling wind travel of the present invention [main component symbol description] 1 2 exhaust bee 131 cooling air passage 15 steam red body 2 2 air outlet 1 engine power system 11 fan 1 3 cylinder head 4 spark plug 2 air duct cover 21 air inlet 2 3 fan cover 1 200835847 3 engine 4 air duct 5 guide mechanism
3 1曲軸箱 3 3汽缸本體 3 4活塞 3 51散熱片 3 7火星塞 3 9冷卻風通道 4 a上罩蓋 4 1冷卻風入口 4 3進氣穿孔 4 5風扇罩 5 1本體 512轉向部 513阻擋部 5 2 1凸耳 5 3底部封墊 5 3 2嵌合槽 3 2曲柄軸 3 31散熱片 3 5汽缸頭 3 6冷卻風扇 3 8燃燒室 4b下罩蓋 4 2冷卻風出口 44排氣穿孔 511導流部 5121嵌合部 5 2侧邊封墊 5 2 2嵌合槽 5 3 1螺孔 A奮流區 S、S1螺固元件 113 1 crankcase 3 3 cylinder body 3 4 piston 3 51 heat sink 3 7 spark plug 3 9 cooling air passage 4 a upper cover 4 1 cooling air inlet 4 3 intake perforation 4 5 fan cover 5 1 body 512 turning portion 513 Block 5 2 1 lug 5 3 bottom pad 5 3 2 fitting groove 3 2 crank shaft 3 31 heat sink 3 5 cylinder head 3 6 cooling fan 3 8 combustion chamber 4b lower cover 4 2 cooling air outlet 44 exhaust Perforation 511 flow guiding portion 5121 fitting portion 5 2 side sealing pad 5 2 2 fitting groove 5 3 1 screw hole A struggling region S, S1 screwing member 11