What is a steering damper and what is it for?
28/02/2020
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WHAT IS A HYDRAULIC SHOCK ABSORBER?
We're back with a new post about the world of Offroad. In our previous article, we explained the main  types of shock absorbers that exist, or with which we most frequently encounter. Given your great interest in some shock absorbers, we've thought it would be interesting to do several more in-depth articles on each type of suspension, this way you can find out if the shock absorbers you are currently using are ideal for you, or if you could increase your vehicle's performance with a suspension better suited to your needs.
If you still have doubts about the role shock absorbers play in your vehicle's operation, don't hesitate to stop by our post about What are shock absorbers and what its main functions are before continuing to read.
Now then, let's start with the hydraulic shock absorbers , one of the most common.
How do hydraulic shock absorbers work?
Hydraulic shock absorbers work on the basis of pistons moving through orifices within an oil-filled tube, which generates compression and expansion forces (which is why they heat up with use), allowing the shock absorber to control the vehicle's suspension.
This way, greater comfort, driving quality, handling safety, and vehicle stability are provided.
What characterizes them?
The main characteristics of this type of twin-tube shock absorber that only work with oil and are made up of two chambers. These chambers, which only contain air, allow oil to enter through regulating valves and to pass from one chamber to another according to the movement of the piston rod.
Hydraulic shock absorbers are available with chambers of various diameters ranging from 12mm to 80mm and stroke lengths up to 800mm.
Advantages and disadvantages of hydraulic shock absorbers:
Among the main advantages of hydraulic shock absorbers We found the following:
They just need maintenance
They are not that rigid
They have a sensitive adjustment
They reduce processing times
Among them disadvantages, these include reduced performance on sharp curves and the formation of bubbles when the oil flows from one chamber to another, which hinders the flow.
Difference between hydraulic shock absorbers and gas shock absorbers:
The main differences between the two shock absorbers are their primary component and how they work:
Hydraulics are less rigid than gas ones. However, gas ones that are also hydraulic, in addition to containing air in their chambers, contain nitrogen gas, which changes the characteristics of the shock absorber. This quality allows the oil to return to the chambers more efficiently, thus accelerating tire contact with the ground after terrain irregularities occur and thereby providing greater grip.
The most important factor in choosing one shock absorber over another is to consider how you will use your vehicle. Depending on this, it will be more or less suitable to install one of these components. It is also essential to consult the vehicle's manual to ensure beforehand that the type of shock absorber is appropriate for the vehicle type, in addition to its intended use.
We help you discover How to choose your shock absorbers on our blog post. You know that for any doubts you may have, you can leave us a comment below and we'll be happy to help!
Next month, we’ll dedicate our monthly post to taking an in-depth look at the features of gas shock absorbers.
We hope it was helpful. See you next time!
PARTS OF A HYDRAULIC SHOCK ABSORBER
- Shock absorber body: It is the outer tube of the shock absorber that contains all the internal components.
- Piston A moving component within the shock absorber body that travels up and down. It is connected to the shaft and divides the internal space of the shock absorber into two chambers: an upper and a lower one.
- Stem It is the rod that extends from the piston up through the top of the shock absorber.
- Oil: The shock absorber is filled with a special oil that helps control the piston's movement and provides damping.
- Compression and expansion valve These valves regulate the flow of oil through the piston, controlling the speed at which the shock absorber compresses and extends.
- Spring Some hydraulic dampers have an additional spring to provide resistance and help absorb impacts.
Adjustable shock absorbers are shock absorbers that allow you to modify their damping force.
28/02/2020
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What are air springs?
14/02/2020
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