طلب مساعدة فى محركات الاحتراق الداخلي


(system) #1

السلام عليكم

بجد الموقع جامد جدا وانا هدخله على طول ان شاء الله بس انا عندى طلب ياريت حد يساعدنى فيه

انا طالبة فى كلية هندسة قسم مدنى بس عندى مادة من ميكانيكا ومطلوب منى فيها report ومش عارفة اعمله
انا هقولكم ايه المطلوب فيه وياريت حد يساعدنى بالمعلومات دى او حتى بمواقع ع النت ممكن تساعدنى لان انا بحثت كتير ومش لاقية المطلوب بالظبط

compare between different internal combustion engines for

[ol]
[li]fuel types[/li][li]number of cylinders[/li][li]cylinders arrangment[/li][li]cooling system[/li][li]application[/li][li]number of strokes[/ol] [/li]ياريت حد يساعدنى بالمعلومات دى بسرعة وسواء عربى او english


(مهندس احمد غازى) #2

CLASSIFICATION OF INTERNAL COMBUSTION ENGINES

  1. Basic Engine Design:

  2. Reciprocating (a) Single Cylinder
    (b) Multi-cylinder

  3. Rotary: (a) Single Rotor
    b)Multi-rotor

  4. Operating Cycle
    • Otto (For the Conventional SI Engine)
    • Atkinson (For Complete Expansion SI Engine)
    • Miller (For Early or Late Inlet Valve Closing type SI Engine)
    • Diesel (For the Ideal Diesel Engine)
    • Dual (For the Actual Diesel Engine)

3.Working Cycle (Strokes)
1.Four Stroke Cycle:(a) Naturally Aspirated
(b)Supercharged/Turbocharged
2.Two Stroke Cycle: (a) Crankcase Scavenged
(b) Uniflow Scavenged
(i) Inlet valve/Exhaust Port
(ii) Inlet Port/Exhaust Valve
(iii) Inlet and Exhaust Valve

  1. Fuel
    1.Conventional: (a) Crude oil derived (i) Petrol
    (ii) Diesel
    (b) Other sources: (i) Coal
    (ii) Wood (includes bio-mass)
    (iii)Tar Sands
    (iv)Shale

  2. Alternate: (a) Petroleum derived (i) CNG
    (ii) LPG
    (b) Bio-mass Derived (i) Alcohols (methyl and ethyl)
    (ii) Vegetable oils
    (iii) Producer gas and biogas
    (iv) Hydrogen

  3. Blending

  4. Dual fueling

  5. Cooling
    a.Air-Cooled engines use the air
    circulating around the engine to cool
    the internal and external parts. Does not
    use coolant/antifreeze. Used mostly on small
    engines. Examples

    b.Liquid-Cooled engines use a type of
    coolant/antifreeze forced, by the water
    pump, to the hot spots of the engine and
    is allowed to cool within the radiator.
    Used on most large engine

6.Cylinder Arrangements:

The arrangement of the cylinders is

another way to classify engines.

1. In-line: The in-line cylinder

arrangement is where one bank of cylinders
are arranged in a straight line. This
type is on the CAT engines we will be
working on.

2. V-Type: The V-Type has two banks 

of cylinders arranged in a “V” configuration
from 45o to 90o from each other. The most
common types are the V-6 and V-8.

  1. Horizontally Opposed: This type
    has two banks of cylinders arranged 180o
    from each other. Volkswagen, Porsche, and
    small aircraft use this type.

  2. Radial: The radial type is where
    cylinders are arranged in a circle around
    the crankshaft. The most common are used
    in old aircraft.


(system) #3

متشكرة اوى يا بشمهندس
ربنا يجعله فى ميزان حسناتك


(مهندس احمد غازى) #4

اسف جدا على الا ختصار ويمكنك ايضا استخدام هذه المواقع

http://university.arabsbook.com/forum23/thread20668.html


(manasrah) #5

بالنسبة لنظام التبريد cooling system


هذا موقع مفيد جدا وبة الكثير من الشروحات التي تطلبينها