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
Reciprocating (a) Single Cylinder
(b) Multi-cylinder
Rotary: (a) Single Rotor
b)Multi-rotor
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)
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
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
Blending
Dual fueling
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.
Horizontally Opposed: This type
has two banks of cylinders arranged 180o
from each other. Volkswagen, Porsche, and
small aircraft use this type.
Radial: The radial type is where
cylinders are arranged in a circle around
the crankshaft. The most common are used
in old aircraft.