Otto Cycle Details about Diesel Engine Information

P-V and T-s Diagram for the Otto Cycle.

An Otto cycle is an idealized thermodynamic cycle which describes the functioning of a typical spark ignition reciprocating piston engine.The Otto cycle is constructed out of:

TOP and BOTTOM of the loop:a pair of quasi-parallel adiabatic processes
LEFT and RIGHT sides of the loop: a pair of parallel isomorphic processes

The processes are described by:

1. Process 1-2 is an is entropic compression of the air as the piston moves bottom dead center to top center.

2. Process 2-3 is a constant-volume heat transfer to the air from an external source while the piston is at top center. This process is intended to represent the ignition of the fuel-air mixture and the subsequent burning.

3. Process 3-4 is an is entropic expansion (power stroke).

4. Process 4-1 completes the cycle by a constant-volume in which heat is rejected from the air while the piston is a bottom dead center.

Cycle Analysis :

Processes 1-2 and 3-4 do work on the system but no heat transfer occurs during adiabatic expansion and compression . Processes 2-3and 4-1 are isomorphic therefore heat transfer occurs but no work in done.No work is produced by the system. Four different equations can be derived by neglecting kinetic energy and considering the first law of thermodynamics (energy conservation).

Otto Cycle De

Diesel Cycle Details about Diesel Engine Information

P-V Diagram for the Ideal Diesel Cycle .

p is pressure and v is specific volume. The ideal Diesel cycle follows the following four distinct processes (The color references refer to the color of the line on the diagram.):

1. Process 1 to 2 is is entropic compression of the fluid(blue co lour)
2. Process 2 to 3 is reversible constant pressure heating (red)
3. Process 3 to 4 is isotropic expansion (yellow)
4. Process 4 to 1 is reversible constant volume cooling (green)
5. Work in (Win) is done by the piston compressing the working fluid
6. Heat in (In) is done by the combustion of the fuel
7. Work out (Out) is done by the working fluid expanding on to the piston (this produces usable torque)
8. Heat out (Out) is done by venting the air

Maximum thermal efficiency
The maximum thermal efficiency of a Diesel cycle is dependent on the compression ratio and the cut-off ratio.

Rudolf Diesel was born in Paris in 1858 into a family of German expatriates. He was educated at Munich Polytechnic.Diesel designed many heat engines, including a solar_powered air engine and in 1892 he received patents in Germany, Switzerland, the United Kingdom and field in the United States fo Method of and Apparatus for Converting heat into work.

Working Parts of Engine Details about Diesel Engine Information

Working system and Parts of Diesel Engine.

Rudolf Diesel was born in Paris in 1858 into a family of German expatriates. He was educated at Munich Polytechnic. After graduation he was employed as a refrigerator engineer, but his true love lay in engine design. Diesel designed many heat engines, including a solar-powered air engine. In 1892 he received patents in Germany, Switzerland, the United Kingdom and filed in the United States for "Method of and Apparatus for Converting Heat into Work".

Working parts of an Engine and Name:
Intake valve 2. cylinder 3.Water 4. Piston rings 5. Water Jacket 6.Flywheel 7. Crankshaft 8. Timing Gears 9. Camshaft 10.Spark Plug 11. Exhaust valve.

ICE ( Internal Combustion Engine ) Moving and Stationary parts of engine. There are many parts of engine is Piston, Paton ring, Commenting rod, Crank Shaft, Cam Shaft, Bush and Exhumation Valve, Flywheel, Crankshaft Gear, Crankshaft Gear and this parts of diesel engine is Moving parts. There are stationary parts of ICE ( Internal Combustion Engine ) engine or Diesel engine is Cylinder Block, Cylinder Head, Gasket, Crank Case, Main Bearing, Intake Manifold , Exhaust Manifold and etc.

Details Parts of Engine and List of Engine Parts Name:
Details parts of engine 1. Camshaft 2.Spark plug 3.Valve spring 4.Cam 5.Mixture in 6. Exhaust valve 7. Intake valve 8. Combustion chamber 9. Cylinder block 10. Connecting rod 11. Crankshaft 12. Cooling water 13. Piston 14. Crankcase this name is figure.

Rudolf Diesel was educated at Munich Polytechnic.In 1892 he received patents in Germany, Switzerland, the United Kingdom and filed in the United States for "Method of and Apparatus for Converting Heat into Work".Rudolf Diesel was born in Paris in 1858 into a family of German expatriates

Wankel Engine Work Details about Diesel Engine Information

Wankel Engine Work and Information and Figure.

The Wankel engine (rotary engine ) does not have piston strokes. It operates with same separation of phases as the four-stroke engine with the phase taking place in separate locations in the engine . In thermodynamics terms it follows the Otto engine cycle , so may be thought of as a "four-phase " engine . While it is true that three power strokes typically occur per rotor revolution due to the 3:1 revolution ratio of the rotor to the eccentric shaft, only one power stroke per shaft revolution actually occurs, this engine provides three powerlessness revolution per rotor giving it a greater-to-weight ratio than piston engines. This type of engine is most notably used in the current Mazda RX-8, the earlier RX-7, and other models.


Wankel Engine is an internal combustion engine. The Mazda Wankel engines (a type of rotary combustion engine ) are family of car engines derived from experiments in the early 1960s by flis Wankel , a German engineer . Over the years, displacement has been increased and turbocharging has been added.

Wanked engines can be classified by their geometric size in terms of radius ( rotor center to tip distance , also the median stator radius) and depth ( rotor thickness) , and offset ( crank throw ,eccentricity , also 1/4 the difference between stators major and minor axes. Displacement is 3√3radius·offset·depth, multiplied with the number of rotors (note that this only counts a single face of each rotor as the entire rotor's displacement, and is of course incorrect as there are three faces, equivalent to three piston faces, per rotor, i.e. equivalent to a three cylinder radial piston motor per rotor).

In auto racing, the displacement of a Wankel engine is usually doubled for classing purposes. This is of course a marketing ploy and wrong. Using only a single face per rotor instead of three results in the nominal displacement being a third of actual. For calculating taxes in Japan, the displacement of Wankel engines is defined as the equivalent of 1.5 times the nominal displacement, so the 1300 cc 13B engines are taxed as 1950 cc, whereas the actual displacement is 3900 cc.

When Wankel engines became commonplace in motor sport events, this created the problem of correcting the representation of each engine's displacement as provided by the manufacturer, for the benefit of competition. Rather than force the majority of participants (driving piston engine cars) to half their quoted displacement (likely resulting in confusion), most racing organizations simply decided to double the quoted displacement of Wankel engines.

4-Stroke Work Details about Diesel Engine Information

Four Stroke ( 4-stroke) Diesel Engine Working System.

Otto cycle or Four stroke diesel cycle same and there are four stroke is Intake, Compression, Power, Exhaust.AS their implies, four-stroke internal combustion engines have four basic steps their repeat with every two revolutions of the engines.

1. Intake Stroke.

2. Compression Stroke.

3. Power Stroke.

4. Exhaust Stroke.


1. Intake Stroke:The first stroke of the internal combustion engine is also know as the suction stroke because the piston moves to the maximum volume position (downward detection in the cylinder). The inlet valve puns as a result of piston movement, and the vaporized fuel mixture enters the combustion chamber. The inlet valve closes at the end of this stroke.

2. Compression Stroke: In this stroke, both valves are closed and the piston its movement to the minimum volume position (upward detection in the cylinder) and compresses the fuel mixture. During the compression processes, pressure, temperature and the density of the fuel mixture increases.

3. Power stroke: When the piston reaches the minimum volume position, the spark plug ignites the fuel mixture and burns. The fuel produces power that is transmitted to the crank shaft mechanism.

4. Exhaust stroke: In the end of the power stroke, the exhaust valve opens. During this stroke, the piston starts its movement in the minimum volume position. The open exhaust valve allows the exhaust gases to escape the cylinder. At the end of this stroke, the exhaust valve closes, the inlet valve opens, and the sequence repeats in the next cycle. Four-stroke engines require two revolutions.

Many engines overlap these steps in time; jet engines do all steps simultaneously at different parts of the engines. Internal combustion engines require ignition of the mixture either by spark ignition or compression ignition .

I.C Details about Diesel Engine Infomation

The internal combustion engine (or ICE ) is quite different from external combustion engine .I.C or Internal Combustion Engine is an engine in which the combustion of a fuel (normally a fossil fuel) occurs with an oxidizer in a combustion chamber. In an internal combustion engine, the expansion of the high-temperature and high-pressure gasses produced by combustion apply direct force to some component of the engine.

The engine was developed by Rudolf Diesel in 1893. Rudolf Diesel was born in Paris in 1858 into a family of German expatiate sand he was educated at Munich Polytechnic. A Diesel engine is an internal combustion engine that uses the heat of compression to initiate ignition to burn burn the fuel, which is injected into the combustion chamber. This is in contrast to spark_ignition engines such as a petrol engine (gasoline engine ) or gas engine (using a gaseous fuel as opposed to gasoline) and which uses a spark plug to ignite an air fuel mixture.


The term INTERNAL COMBUSTION ENGINE usually refers to an engine which combustion is intermittent, such as the more familiar Four_stroke and Two_stroke piston engines, along with variants, such as the six-stroke piston engine and the Wankel rotary engine. Gas turbines, Jet engines and most rocket engines, each of which are internal combustion engines use continues combustion engines on the same principle as previously describe.

A large number of different designs for I C Es have been developed and built, with a variety of different strengths and weaknesses. There are many stationary applications the strength of internal engines is dominate as a power supply for cars, aircraft and boats.