AET News & Blog
At one time, turbochargers on passenger vehicles were the reserve of the performance enthusiast, designed to help eek out extra power to improve acceleration and top speed – but today, things have changed completely.
With rising fuel prices and increasing concern about the environment, manufacturers have turned to the turbo to help solve the problem, in an effort to improve engine efficiency and reduce the environmental impact of driving.
In this article, we look at the principles behind turbocharging for economy, how things are changing, and what the future holds.
Customers often ask us questions about the differences between turbochargers on diesel and petrol engines, in terms of how they work, and what they are used for.
In this post, we explore the topic, looking at the principles behind turbocharging, the basic differences between diesel and petrol engines, and how this affects the design of turbochargers for each application.
Here, you can see an example of heavy wear and polishing damage caused to a turbine shaft and wheel by a lack of oil, either due to a poor supply, or low oil pressure.
In this example, you can see a turbine shaft and wheel that’s been damaged due to severe oil contamination – notice the built up oil coating both the wheel and the shaft, and the damaged blades on the wheel. On the shaft itself, you can also see where foreign objects in the contaminated oil have caused scoring damage.
Here, you can see a different example of wearing damage to a piston ring seal groove – in this case, the face on the inside of the groove has been worn away, so that it now has a lipped edge.
Oil problems, debris, overspeeding, wear and tear…there are a number of different things that can cause a turbocharger to fail, but catching a problem early can save you a lot of time, money and hassle in the long run.
At AET, we’ve been helping customers with their turbochargers since 1974, and in this post, we explore some of the tell tale signs that your turbo might be on the way out, or in need of urgent repairs/maintenance by one of our turbocharging experts.
This example shows a worn piston ring seal groove – in the image, you can see that the outer edge of the piston ring seal groove is sloping outwards, when it should be straight.
One common question that we often get from customers is why turbochargers perform differently depending on the time of year, temperature and weather. Generally, these customers have noticed a significant drop in performance on hot summer days when compared to cooler spring and autumn nights.
Whilst this is a common trait amongst all turbocharged vehicles, and isn’t anything to worry too much about – in this post, we take a look at why turbochargers produce less power in hot weather, and what you can do about it.
In this image, you can see some moderate corrosion to the piston ring seal area of the turbine shaft – the surface of the metal has become worn, pitted and roughened.
Last month on the blog, we looked at where big automotive brands get their turbochargers, and learnt that the vast majority of the big car companies actually buy in their turbos from other companies.
In this month’s post, we’re going to look at some of these specialist turbocharging companies in a little more detail, exploring the kind of turbos they make, and why they are trusted by the major automotive brands.