Exhaust stroke meaning

The exhaust stroke is the fourth stroke of a four-stroke engine, where the spent fuel-air mixture is pushed out of the cylinder.


Exhaust stroke definitions

Word backwards tsuahxe ekorts
Part of speech Noun
Syllabic division ex-haust stroke
Plural The plural of the word exhaust stroke is exhaust strokes.
Total letters 13
Vogais (4) e,a,u,o
Consonants (6) x,h,s,t,r,k

The exhaust stroke is a crucial part of the four-stroke combustion cycle in an internal combustion engine. It is the stage where the burned fuel-air mixture is expelled from the cylinder after combustion has occurred.

During the exhaust stroke, the exhaust valve opens while the piston moves back up the cylinder. This upward motion forces the spent gases out through the exhaust valve and into the exhaust system of the vehicle.

Importance of Exhaust Stroke

The exhaust stroke is essential for the efficient operation of the engine. By expelling the burned gases, it clears the way for fresh air and fuel to enter the cylinder during the intake stroke. This process helps maintain proper combustion and optimum engine performance.

Exhaust Valve Timing

Proper timing of the exhaust valve opening and closing is crucial for the engine to function correctly. It ensures that the combustion by-products are efficiently removed from the cylinder without interfering with the intake of fresh air and fuel.

Exhaust System

The exhaust stroke is closely related to the exhaust system of the vehicle. The exhaust system includes components such as the exhaust manifold, catalytic converter, muffler, and tailpipe. These parts work together to remove the harmful gases produced during combustion and reduce noise from the exhaust process.

Overall, the exhaust stroke plays a vital role in the combustion process of an internal combustion engine by expelling the burned gases and making way for the intake of fresh air and fuel. Proper timing and functioning of the exhaust stroke are essential for the engine to operate efficiently and maintain optimum performance.


Exhaust stroke Examples

  1. During the exhaust stroke, the piston pushes the burned gases out of the cylinder.
  2. The exhaust stroke plays a crucial role in the operation of a four-stroke engine.
  3. In an internal combustion engine, the exhaust stroke helps expel waste gases from the combustion chamber.
  4. Understanding the exhaust stroke is essential for proper engine maintenance.
  5. The exhaust stroke occurs after the power stroke in the engine cycle.
  6. A correctly timed exhaust stroke helps optimize engine performance.
  7. The exhaust stroke is part of the process that generates power in an engine.
  8. Proper valve timing is necessary for an efficient exhaust stroke.
  9. Mechanics need to be familiar with the exhaust stroke to diagnose engine issues.
  10. The exhaust stroke must be completed before the intake stroke can begin.


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  • Updated 06/05/2024 - 08:35:53