Bureaucrats, forumadmin, Administrators
257
edits
Changes
Difference Between Diesel Engine And Petrol Engine (edit)
Revision as of 07:18, 6 March 2015
, 07:18, 6 March 2015Created page with "Both petrol and diesel engines have the same mechanism. Both of them can be two-stroke or four-stroke , both have a cylinder , a piston , a piston pin , a connecting rod , a c..."
Both petrol and diesel engines have the same mechanism. Both of them can be two-stroke or four-stroke , both have a cylinder , a piston , a piston pin , a connecting rod , a crank and a crank shaft but there are many differences between the two
<tab sep=bar head=top class=diff>
'''Diesel Engine''' | '''Petrol Engine'''
The mechanism of diesel engine involves that only air is supplied into the cylinder which is compressed during the compression strokes . At the end of the compression the air reaches to a very high temperature and fuel is injected in the form of fine spray by a nozzle. | The mechanism of petrol engines involves that a mixture of air and petrol is injected into the cylinder . The mixture is produced by the carburetor . This mixture is compressed inside the cylinder during compression stroke . After the compression , a spark plug produces a spark that leads to combustion of the mixture .
Compression Ratio in diesel engine is as high as 24 | Compression Ratio in petrol engines is below 12 . It is due to the phenomenon of knocking .
Due to higher compression ratio peak pressure is higher so , heavier components (cylinder , piston , connecting rod , crank) are required in diesel engine | Components are comparatively lighter in petrol engines.
Diesel Engine works on the Diesel Cycle | Petrol Engines work on the Otto Cycle.
Diesel engines are practically more efficient because they work at higher compression ratios | However , Otto Cycle is more efficient than Diesel Cycle for a given compression ratio but due to its low compression ratio it becomes practically less efficient .
</tab>
[[Category:Engineering|Difference Between Diesel Engine And Petrol Engine]]
<tab sep=bar head=top class=diff>
'''Diesel Engine''' | '''Petrol Engine'''
The mechanism of diesel engine involves that only air is supplied into the cylinder which is compressed during the compression strokes . At the end of the compression the air reaches to a very high temperature and fuel is injected in the form of fine spray by a nozzle. | The mechanism of petrol engines involves that a mixture of air and petrol is injected into the cylinder . The mixture is produced by the carburetor . This mixture is compressed inside the cylinder during compression stroke . After the compression , a spark plug produces a spark that leads to combustion of the mixture .
Compression Ratio in diesel engine is as high as 24 | Compression Ratio in petrol engines is below 12 . It is due to the phenomenon of knocking .
Due to higher compression ratio peak pressure is higher so , heavier components (cylinder , piston , connecting rod , crank) are required in diesel engine | Components are comparatively lighter in petrol engines.
Diesel Engine works on the Diesel Cycle | Petrol Engines work on the Otto Cycle.
Diesel engines are practically more efficient because they work at higher compression ratios | However , Otto Cycle is more efficient than Diesel Cycle for a given compression ratio but due to its low compression ratio it becomes practically less efficient .
</tab>
[[Category:Engineering|Difference Between Diesel Engine And Petrol Engine]]