What is a car?

self-propelled machine
self-propelled machine

Car is self-propelled machine (from word “self-propel”). A modern motor car consists of several thousand various units, details and parts.

Dear friends, can you imagine an ordinary supermarket trolley?  Is it real, that it`s moving itself? Of course, it is not true. Because the man pushes a supermarket trolley with help special handle. A self-propelled car is such machine that engine moves.

selg-propelled machine

Car consists of different parts, components, mechanisms and systems. Articles will have some technical terms, which you should know. It opens door you technical language.

Detail – this is a small separate part of several thousand other car details. It consists of a single piece of material. Your toy is consist of different details. too.

Component combines some details. Bolts are using to connect details.

Mechanism is a device that can transmit motion, transform energy, or change speed (for example transmission).

Car like Kids car

There are inertial cars, it move inertial mechanism, like your toys.


Unit – it is connection set of several devices for performance one task.

Engine system   – there are some of parts, which are united with one general function. For example:
engine cooling system, engine oil system, engine fuel system,
engine ignition system, engine starting system.

Car body construction

The car body – is the main and most expensive part of a car. It can be carrying structure or some of it structural element.

Engine construction

The engine – is the heart of a car. It`s energy source without it car moving can`t be real.

Suspension construction

The chassis combines transmission, running gear, vehicle steering mechanisms.

transmission construction

Transmission transmits moment of torsion from crankshaft to drive wheels change the size and direction of it.

Author: delfi

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