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06-02-2011, 08:20
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مهندس جديد
 تاريخ التسجيل: 02 2011
المشاركات: 1
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اكثر من 10000 فيديو لشرح كل اجزاء سيارتك
In this article , we will talk about cooling system of the internal compustion engines.The high working temperatures of the internal combustion engine which are the cause of its high efficiency are at the same time a source of great practical difficulty in construction and operation. No known materials are capable of enduring continuously the high temperatures to which the cylinder, piston and valves are subjected while at the same time retaining sufficient strength to withstand the high working loads. The maximum temperature during combustion is approximately the melting point of platinum and the temperature even of the exhaust gases is above that of aluminium. It is thus essential that heat be abstracted from the parts enumerated above at a sufficient rate to prevent a dangerous temperature being reached, for, unfortunately, it is quite impossible to prevent heat entering the metal from the hot gases. The following videos illustrating all you need to know about cooling system 1-Water colling system 2-Air colling system http://www.youtube.com/watch?v=jpkrFwJzLfQ 3-Coolent used in water colling system http://www.youtube.com/watch?v=cbnDHcEPumI http://www.youtube.com/watch?v=BfIoZx8EHRU 4-Cooling system fan http://www.youtube.com/watch?v=Ap7qWYOdYDc 5-Cooling system hoses http://www.youtube.com/watch?v=uaoW27s1WoU 6-Colling system water pump http://www.youtube.com/watch?v=l0BwpPNTyrc 7-Cooling system thermostate http://www.youtube.com/watch?v=0R1zxDu2uVc 8-Cooling system radiator http://www.youtube.com/watch?v=GA7X8RQza0k Thursday, February 3, 2011 Automotive engine Lubrication After you know the main engine components and engine working principle, we will discuss the secondary systems that are essential for engine operation which are: 1-lubrication system 2-cooling system (water cooling and air cooling) 3-fuel supply to engine Each system will be discused in details 1-lubrication system: Lubrication serves the following purpuses: - Reduction of the resistance to relative motion between the surfaces. - Prevention of seizure. - Reduction of the rate of wear of the sliding surfaces. - To carry away the heat generated by the friction. lubrication system history: Early engines had only elementary lubrication systems. Up to the 1920s, some had manual pumps that were actuated intermittently. For others, up to the 1930s, oil was fed by gravity from a tank through a pipe to the crankcase, where it was either piped directly, or passed through ducts in the casting, to the main bearings, the flow generally being manually regulated by a needle valve. Alternatively, it was delivered into the base of the casting, whence it was whipped up by the rotating cranks into a fine mist to lubricate all the other moving parts. The following videos illustrate the lubrication system and its components 1-Dry sump oil tank http://www.youtube.com/watch?v=RryApAqsReM 2-Dry Sumb System http://www.youtube.com/watch?v=2ChufEfcfJw 3-Engine Friction http://www.youtube.com/watch?v=AHJMMO0sBlk 4-Engine oil sumb http://www.youtube.com/watch?v=dSHoZiopYBk 5-Full Pressure lubrication System http://www.youtube.com/watch?v=4ASBASbxfWo 6-Ovelall lubrication System http://www.youtube.com/watch?v=SG66-KraevY 7-oil Addidtives http://www.youtube.com/watch?v=m7BCRtPan_M 8-oil Coolers http://www.youtube.com/watch?v=K7JdeCoWbmA 9-Oil Pick up tube http://www.youtube.com/watch?v=1zUsjmUorbo 10-oil pressure gauges and ligths http://www.youtube.com/watch?v=jdPHRkk_k7Y 11-Pressure relive valves http://www.youtube.com/watch?v=WXQQ_AHM0aE 12-Rotary engine lubrication System http://www.youtube.com/watch?v=udIp9VWIE6E 13-Splash Lubrication http://www.youtube.com/watch?v=udIp9VWIE6E 14-Oil Viscosity http://www.youtube.com/watch?v=LMZjgKZAXlI المصدر: منتدى المهندس كوم كلية الهندسة التعديل الأخير تم بواسطة ღ♥MIMO♥ღ ; 06-02-2011 الساعة 08:50 |
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06-02-2011, 08:53
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#2 |
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مهندس مجتهد
تاريخ التسجيل: 02 2011
المشاركات: 243
شكراً: 3
تم شكره 9 مرة في 7 مشاركة
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رد: اكثر من 10000 فيديو لشرح كل اجزاء سيارتك
Friday, January 14, 2011
All you want to know about your car engine The petrol or oil engine, which is the source of power with which we are immediately concerned, is a form of internal combustion ‘heat engine’, the function of which is to convert potential heat energy contained in the fuel into mechanical work. Engine main components: Cylinder: The ideal form consists of a plain cylindrical barrel in which the piston slides Piston: The usual form of piston for internal combustion engines is an inverted bucket-shape, machined to a close (but free sliding) fit in the cylinder barrel. Gas tightness is secured by means of flexible ‘piston rings’ fitting closely in grooves turned in the upper part of the piston. Connecting rod:The connecting rod transmits the piston load to the crank, causing the latter to turn, thus converting the reciprocating motion of the piston into a rotary motion of the crankshaft. The lower end, or ‘big end’, of the connecting rod turns on the crank pin. Crankshaft: In the great majority of internal combustion engines this is of the double-web type, the crank pin, webs and shaft being usually formed from a solid forging. The shaft turns in two or more main bearings (depending on the number and arrangement of the cylinders) mounted in the main frame or ‘crankcase’ of the engine. Flywheel: At one end the crankshaft carries a heavy flywheel, the function of which is to absorb the variations in impulse transmitted to the shaft by the gas and inertia loads and to drive the pistons over the dead points and idle strokes. In motor vehicles the flywheel usually forms one member of the clutch through which the power is transmitted to the road wheels. Previous parts are the main mechanical components of the engine,but in fact there are many systems which grantee that the engine is working properly like lubrication system,cooling system and many ather systems that will be discused later in details Hey,here you are a complete set of videos describe in details all engine components: The 2 strock engine principle and operation http://www.flixya.com/video/4031647/The-2-strock-cycle-engine-operation-principals Cam Shaft function,operation and manufacturing http://www.flixya.com/video/4031649/Cam-shaft-function-operation-and-manufacturing Compustion chamber shape and operation http://www.flixya.com/video/4031650/Compustion-chamber-types-configurations-and-performance Connecting rod function,operation and manufacturing http://www.flixya.com/video/4031654/Connecting-rod-functionoperation-and-manufacturing Cranck shaft function,operation and manufacturing http://www.flixya.com/video/4031655/Cranck-shaft-functionoperation-and-manufacturing Engine block manufactring and operation http://www.flixya.com/video/4031657/Engine-block-manufactring-and-operation ICE cylinder linar operation and function http://www.flixya.com/video/4031659/ICE-Cylinder-linar-operation-and-function ICE sliding bearings types and location http://www.flixya.com/video/4031660/ICE-sliding-bearing-types-and-locations ICE flywheel construction,operation and functions http://www.flixya.com/video/4031662/ICE-fly-whell-constructionoperation-and-functions ICE overhear cam gear train operation and construction http://www.flixya.com/video/4031663/Overhead-camgear-train-system-function-and-operation ICE piston rings operation,function and manufacturing http://www.flixya.com/video/4031665/ICE-piston-rings-operation-manufacturing-and-maintenance Pistons operation,functions and manufacturing http://www.flixya.com/video/4031667/ICE-main-power-sourcepistons-operation-function-and-manufacturing Valves guides installation and machining http://www.flixya.com/video/4031668/ICE-valve-guides-and-how-it-is-overhouled-and-installed ICE valve seats installing and machining http://www.flixya.com/video/4031671/ICE-valve-seats-contact-machining-and-installing Effect of the valve size on the overall performance of the vehicle http://www.flixya.com/video/4031673/Effect-of-ICE-valve-size-on-the-overall-performance-of-the-engine ICE oil seals http://www.flixya.com/video/4031674/Internal-compustion-engines-valve-types-and-maintenance ICE valve seats machining and installation http://www.flixya.com/video/4031678/Inernal-compustion-chambers-vslve-seats-installation Refrence:The Motor Vehicle 13th edition |
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06-02-2011, 08:56
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#3 |
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مهندس مجتهد
تاريخ التسجيل: 02 2011
المشاركات: 243
شكراً: 3
تم شكره 9 مرة في 7 مشاركة
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رد: اكثر من 10000 فيديو لشرح كل اجزاء سيارتك
Do you know the main components of your vehicle?
Hi all of you Let us begin Today we will talk about introduction to your car Do you know what are the components of your car? Your car is a very complicated integrated system This system is devided to many sub systems. The main systems of any vehicle are: 1- Engine:it is the power source of the vehicle 2- Braking system: this system is responsible for stopping and decelerate the vehicle 3- Powertrain:it includes clutch,gearbox,driveline and differential,this system is responsible for transmit engine torque to the tires 4- Tires and suspension systems:responsible to develop sufficient tractive effort and braking and cornering effort and to isolate road input 5- Steering system:steering system is the main difference between road vehicles and trains 6- Body:it is the skeleton which include all previous systems and passengers or goods Each system will be discussed in details And now here you are your first video set This video show you the main components of any vehicle Vehicle main components http://www.flixya.com/video/4031646/Veihcle-main-components-illustration-and-de******************ion And in this video you will see how sheet metal is converted to an amazing car Car manufacturing video part 1 http://www.flixya.com/video/4031638/Complete-Vehicle-mnaufacturing-part-1 car manufacturing video part 2 http://www.flixya.com/video/4031641/Complete-vehicle-manufacturing-part-2 |
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26-03-2011, 10:16
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#4 |
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مهندس جديد
تاريخ التسجيل: 03 2011
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رد: اكثر من 10000 فيديو لشرح كل اجزاء سيارتك
مجهود رائع تشكر عليه وبارك الله فيك اخي الفاضل
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| اجزاء المحرك ... فيديو توضيحي اكثر من رائع لاجزاء المحرك | Avatar | الهندسة الميكانيكية - Mechanical Engineering | 3 | 28-10-2011 10:01 |
| مطلوب مدير مشروع مدني براتب 10000 ريال للعمل بالراجحي بالسعودية -شرط مصري بمصر | مطلوب مدير مشروع ومعماري | الهندسة المعمارية - Architecture | 0 | 24-12-2009 10:42 |
| مطلوب مصمم معماري حديث برابت 4000ري ال مصري-مطلوب خبرة10 سنوات 10000 ريال | مطلوب معمارين خبرات وحديث | الهندسة المدنية - Civil Engineering | 0 | 23-12-2009 03:51 |
| مطلوب مصمم معماري حديث برابت 4000ري ال مصري-مطلوب خبرة10 سنوات 10000 ريال | مطلوب معمارين خبرات وحديث | منتدى الوظائف والتوظيف - Jobs and employment | 0 | 23-12-2009 03:43 |
| ادخل وحمل كروس لشرح اجزاء المحرك بالكاما من شركه lion | م/محمد لطفي | الهندسة الميكانيكية - Mechanical Engineering | 108 | 23-04-2008 09:52 |
