The stroke volume is a part of the working space of the cylinder in a reciprocating internal combustion engine, which is defined by the piston's bottom and top dead centers. Simply put, the stroke volume is the volume the piston fills during its stroke.

However, as many people mistakenly think, the stroke volume does not mean the engine's total displacement. It only indicates the volume of the cylinder's working space defined by the piston's bottom and top dead centers. Above the top dead center of the piston, there is a space called compression space or compression volume…

The engine compression test is a method by which accurate information about the condition of the engine is determined. By measuring compression pressures, it is possible to detect leaks in the combustion chamber of individual cylinders.

Leaks in the combustion chamber adversely affect the entire operation of the engine, its performance, fuel consumption, engine oil consumption, the number of emissions produced, and more.

Loss of power over time is inevitable for every single internal combustion engine. But what is the cause, and how to prevent these problems in the first place?

We have prepared an article to answer this question - we will look at the possible causes of the loss of performance and how they can be eliminated.

The compression ratio is one of the basic characteristics of a piston combustion engine, which indicates the cylinder volume ratio between the piston in the bottom and the piston in the top dead center.

The compression ratio is thus the ratio of the entire working volume of the cylinder to the volume of the compression space. In other words, the ratio between the volume of the mixture sucked into the cylinder and the volume of the mixture compressed in the cylinder.

Piston rings are part of a piston combustion engine and separate the combustion chamber from the crankcase. In addition, they also serve to define the clearance between the piston and the cylinder.

In this article, we'll take a quick look at the function of piston rings, their breakdown, and what a worn piston ring can cause.