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There will always be that when you own something when you do not think it would be valuable, but also do not see the value of it, but when you lose it when it come to repentance, but that at the moment when the lateness of the hour, too late for regrets and. I now have such a similar feel. A week-long automotive engine disassembly internship is over, memories of this time, he reluctantly are true. Wanted to be back in a week ago, then put in every day practice as seven hours to 27 hours use. This is true, this internship opportunities for me are too precious a true. In this internship, I learned about auto engines knowledge, are ever at a lesson on what can not be compared. And I once again felt the profound theoretical and practical combination of the need. Teacher because of the arrangement to the engine of our components are Santana 2000 engine. First of all, for the automotive engine theory of knowledge, I understand that: Santana in Germany Volkswagen Ltd. 1982 products. The company entered Shanghai in 1983, to cooperate with the development of our country has been the development of three generations - four generations of production lines, and in 95 years will be Santana 2000 Electronic Fuel injection system into the market. The main parameters of motor vehicles including technical parameters, the basic parameters, engine and chassis parameters parameters. Structure for the JV type engine, the combustion chamber for the ball flat, so that the function of strong squeezing gas area, to reduce fuel consumption and air pollution Valve for overhead camshaft type, camshaft push rod directly. Advantages of simple structure, the inertia of small parts, the system stiffness, and improve the effective engine speed. Valve for the hydraulic rod to mention, the automatic adjustment of valve clearance. Intake system has electric heaters and temperature control the intake valve, you can ensure that a smooth start and shorten the warm-up time. Closed water cooling system uses forced circulation. The basic structure of the modern automobile engine from crank linkage, valve body, transmission system, lubrication system, cooling system, ignition system, start the Department of the composition. Linkage crank engines are energy conversion and transmission of power institutions. Valve bodies are engines of ventilators, ventilation process: on time and turn off the control valve to ensure full combustion gas mixed with gas and emissions. Supply lines are guaranteed to give a total cylinder fresh combustible mixture and export emissions, and in accordance with the different engine operating conditions the supply of different quantity and concentration of combustible gas mixture. 中文翻譯如下：人們總說，當(dāng)你擁有一樣?xùn)|西的時候，你會不覺得的它的珍貴，也看不到它的價值所在，但是當(dāng)你失去它的時候才恍然悔悟，此刻卻以為時已晚，后悔莫及。我現(xiàn)在就有這么一種類似的感受。 為期一周的汽車發(fā)動機拆裝實習(xí)結(jié)束了，回憶這段時光，竟真的是戀戀不舍。恨不得能回到一周前，然后把每天實習(xí)的7個小時當(dāng)成27個小時來用。確實如此，這次實習(xí)的機會對我來說真的是太珍貴了。 在這次實習(xí)中，我學(xué)習(xí)到的關(guān)于汽車發(fā)動機的知識，是在以往任何一節(jié)課上都不能所比擬的。而我也再一次深刻感受到了理論和實踐結(jié)合的必要性。 由于老師的安排，我們組分到的發(fā)動機是桑塔納2000型發(fā)動機。首先，對于汽車發(fā)動機理論知識的學(xué)習(xí)，我了解到： 桑塔納轎車是德國大眾汽車有限公司1982年的產(chǎn)品。該公司于1983年進入上海，同我國進行合作開發(fā)，目前已發(fā)展為三代-四代生產(chǎn)線，并于95年將桑塔納2000電控汽油噴射系統(tǒng)投入市場。 汽車的主要參數(shù)包括技術(shù)參數(shù)、基本參數(shù)、發(fā)動機參數(shù)和底盤 參數(shù)。 發(fā)動機結(jié)構(gòu)為JV型，燃燒室為扁球形，這樣可以則功能強擠氣面積，減低油耗和大氣污染配氣機構(gòu)凸輪軸為頂置式，凸輪軸直接推動連桿。優(yōu)點為結(jié)構(gòu)簡單、零件慣性小、系統(tǒng)剛度大、有效提高發(fā)動機轉(zhuǎn)速。氣門提桿為液壓式，氣門間隙自動調(diào)節(jié)。進氣系統(tǒng)有電加熱器和溫度控制進氣閥，可以確保汽車順利啟動和縮短暖機時間。冷卻系統(tǒng)采用閉式水冷強制循環(huán)。 現(xiàn)代汽車發(fā)動機基本結(jié)構(gòu)由曲柄連桿機構(gòu)、配氣機構(gòu)、傳動系、潤滑系、冷卻系、點火系、啟動系組成。曲柄連桿機構(gòu)是發(fā)動機進行能量轉(zhuǎn)換和傳遞動力的機構(gòu)。配氣機構(gòu)是發(fā)動機的換氣機構(gòu)，換氣過程：控制氣門按時關(guān)閉，保證氣配時充分燃燒混合氣和排放廢氣。供給系是保證向氣缸共給新鮮可燃混合氣和導(dǎo)出廢氣，并按照發(fā)動機不同工況供給不同數(shù)量和濃度的可燃混合氣。 這篇挺好的啊，嘻嘻

回答者：東方I紅哥2016-11-17 00:00