I have imposed a ban on myself not to enter the world of the internally cooled engine, but I have to break it, because of some questions that most often arise in people who want to understand the theory.

A small preface: In order for an internally cooled engine to work, we need to create its cold part. We have the hot part - It is given to us by nature (the heat of the environment). We need a temperature difference between the hot and cold part (Carnot), and we will have to create a cold part - We do not have it. It is "expensive", we "pay" for it. And once created, we have to keep it cold.

It is often concluded that we will inevitably lose the cold part due to waste heat and heat exchange with the environment

What do we do to preserve the cold part:

1. Thermal insulation

2. Heat redistribution system - We transfer heat from the cold to the warm part

3. We convert most of the heat into mechanical energy so that the resulting power is greater than the power required for the operation of the heat redistribution system

In the thermally insulated part of the internally cooled engine, heat is converted into mechanical energy. This is how we preserve the cold part.

 

Svetozar the Cold