If ever auomobile engineering goona change its technology

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SUMMARY

The discussion centers on the pressure of the piston during the suction stroke in internal combustion engines, specifically addressing vacuum levels. A typical vacuum value is around 20 inches, which can lead to pumping losses. While some auxiliary components can utilize this vacuum, it is generally detrimental. Turbocharged and supercharged engines maintain constant manifold pressure, eliminating vacuum, and diesel engines do not experience vacuum at all. The conversation also raises questions about the necessity for changes in automotive technology.

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  • Understanding of internal combustion engine mechanics
  • Knowledge of vacuum pressure measurements in automotive applications
  • Familiarity with turbocharging and supercharging technologies
  • Basic principles of diesel engine operation
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prashan
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whats the pressure of piston in suction stroke...and if we increase it could we get more benifit
 
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prashan said:
whats the pressure of piston in suction stroke...and if we increase it could we get more benifit
If you mean the vacuum value, then this should be around 20 inches and it's harmful actually and is referred to as pumping losses
nevertheless, there are some auxiliary components that utilize some of this vacuum, but this vacuum could be generated with an external device (e.g pump) therefor eliminating the harmful effects.

the vacuum inside the engine results from the restricted air flow by the butterfly that is partially closed
In a turbocharged/ supercharged engine there will be a constant pressure through the manifold which eliminates the vacuum from it altogether, also note that diesel engines don't experience vacuum at all

However, what "technology" excatly do you refer to and why should it be changed ?
 
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