Translation and analysis of words by ChatGPT artificial intelligence
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steam off! - translation to russian
![Schematic [[Indicator diagram]] of pressure in a steam locomotive cylinder. The pressure in the cylinder declines after cutoff as the steam pushes the piston down its bore](https://commons.wikimedia.org/wiki/Special:FilePath/Indicator diagram steam admission.svg?width=200 "Schematic [[Indicator diagram]] of pressure in a steam locomotive cylinder. The pressure in the cylinder declines after cutoff as the steam pushes the piston down its bore")
![Fireless steam locomotive]]<br>Despite the resemblance to a boiler, note the lack of a chimney and also how the cylinders are at the cab end, not the chimney end.](https://commons.wikimedia.org/wiki/Special:FilePath/Dampfspeicherlok Genthin Henkel Werk.jpg?width=200 "Fireless steam locomotive]]<br>Despite the resemblance to a boiler, note the lack of a chimney and also how the cylinders are at the cab end, not the chimney end.")
![diagram]] for steam](https://commons.wikimedia.org/wiki/Special:FilePath/HS-Wasserdampf engl.png?width=200 "diagram]] for steam")
Definition
Wikipedia
In a steam engine, cutoff is the point in the piston stroke at which the inlet valve is closed. On a steam locomotive, the cutoff is controlled by the reversing gear.
The point at which the inlet valve closes and stops the entry of steam into the cylinder from the boiler plays a crucial role in the control of a steam engine. Once the valve has closed, steam trapped in the cylinder expands adiabatically. The steam pressure drops as it expands. A late cutoff delivers full steam pressure to move the piston through its entire stroke, for maximum start-up forces. But, since there will still be unexploited pressure in the cylinder at the end of the stroke, this is achieved at the expense of engine efficiency. In this situation the steam will still have considerable pressure remaining when it is exhausted resulting in the characteristic “chuff chuff” sound of a steam engine. An early cutoff has greater thermodynamic efficiency but results in a lower Mean effective pressure so less average force on the piston and is used for running the engine at higher speeds.
