Technical newsletter

EureTechFlash aims to demystify new technologies and make them transparent, to stimulate You as a professional repairer to keep pace with technology.

Lubricants and Fluids

29.06.2022
Internal combustion engines make it possible to transform the energy generated by combustion into mechanical work. To produce movement, they have a large number of moving parts subjected to high loads and temperatures.
During operation, the moving parts rub against each other. This friction generates heat and causes wear in the components, leading to excessive play, breakages or even seizures between them.
To prevent this, lubrication systems are used in the engine, creating a fi lm between the moving components that reduces the friction and the prob-lems it can generate. The fl uid used for lubrication is engine oil.
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Ride Control: Tires

29.06.2022
The tyre is a component with a toroidal shape and made from rubber, which is used on the wheels of a variety of vehicles and machinery. It consists of a mainly rubber covering containing air which supports the vehicle and its load.
Today, most passenger vehicle tyres, as well as those on lorries, are radials and therefore composed of an elastic tyre tread, a practically inextensible belt and a radially oriented arch structure over an inflated membrane and some beads, also inextensible, which are coupled to another rigid element which is the rim. There is another type of tyre known as the diagonal or bias-ply tyre, used mainly in lorries.
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Ride Control: Braking

29.06.2022
The braking system is the set of components whose function is to reduce the speed of a moving vehicle or stop
it in a stable, quick and effective way, or to keep it stationary if it has already been stopped.
The braking effect involves converting kinetic energy into heat energy. In vehicles, a fixed surface is applied
(pads or shoes) against another moving surface (disc or drum). The friction between these two surfaces restrains
the rotation of the moving part, and converts the movement’s kinetic energy into heat and dissipates
it into the atmosphere by radiation.
If the heat generated during braking is not dissipated
effectively, the braking devices (fluid and pads/discs or
shoes/drum) suffer thermal stress which reduces their
effectiveness, the braking effect fades and the braking
distance increases.
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Ride Control: Suspension

29.06.2022
THE SUSPENSION SYSTEM FORMS PART OF THE VEHICLE’S ACTIVE SAFETY. IT IS RESPONSIBLE FOR ENSURING THE COMFORT OF THE OCCUPANTS BY PREVENTING OSCILLATIONS IN THE GROUND BEING TRANSMITTED TO THE BODY. IT ALSO ENSURES THAT THE WHEELS REMAIN IN CONTACT WITH THE GROUND SO DYNAMIC CONTROL OF THE VEHICLE CAN BE MAINTAINED.
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Climate Control

29.06.2022
THE SYSTEMS USED IN A CAR TO RAISE OR LOWER THE TEMPERATURE IN THE PASSENGER CABIN ARE BASED ON HEAT TRANS-MISSION BY MEANS OF HEAT EXCHANGERS, WHICH ARE CROSSED BY FRESH OR RECIRCULATED AIR BEFORE PASSING TO THE PASSENGER CABIN THROUGH ITS DUCTS.
THE REACTION TIME OF A DRIVER DEPENDS ON HIS OR HER COMFORT LEVEL, ONE OF THE MOST INFLUENTIAL FACTORS IN THIS RESPECT IS BODY TEMPERATURE.
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