When I was a kid, I always used to think, is there a need of clutch ? what does it do exactly ? & as a kid I was able to imagine the working of brakes & how does the speed increase but I was never able to understand clutches ! It was truly a satisfying moment for me when I was completely able to understand clutches. So here it is, today we’ll see everything you need to know about Clutches ! more “How car clutches work ? | Parts, function & types !”
With great power, comes great BRAKES
that was just my honest attempt to make you laugh 😀
Well, that is what I think about brakes. If you have a car with a powerful engine which could run fast as a cheetah but doesn’t have enough powerful brakes to stop it OR control it, you better sell it ASAP 😛 .
So today in here, we’ll see what are brakes & the types of brakes ! more “What are Brakes ? | Types of Brakes (animations)”
Very few are lucky enough to take a ride in a Chopper & I am happy to be one of them ! Anyway, helicopters are indeed one of the most interesting machines from which I know so far. Subjects like flight mechanics & helicopter dynamics are not for weak hearted ones; they are seriously challenging to study ! Well keeping those complex calculations, equations & relations aside, lets at least know how helicopters work, fly & are steered ! more “How helicopters work, fly & turn (Animation) ?”
Rotary/gnome engines were used to power aircrafts during WW-I & radial engines during WW-II. Then came the era of jet engines which completely revolutionized the aviation technology ! Jet engines were very much efficient & powerful than those used during World wars ! The power jet engines deliver is so high that an airplane weighing hundreds of tons lifts off the ground with such ease. How are they capable of producing so much of power/thrust ?
So lets not waste our time & have a look on how do jet engines work ? more “How do Gas turbines or Jet engines work ?”
Earlier in the Engines section we saw how 4 stroke & 2 stroke engines work ! We might like to give a thought on which is better one OR which has more advantages. So in this article we are going to discuss about the differences, advantages & disadvantages of 4 stroke & 2 stroke engine. more “Differences, Advantages & Disadvantages of 4 stroke vs 2 stroke engine”
These are the most basic engines used in cars & bikes i.e Four stroke cycle petrol engine OR 4 stroke engine(often called). It is very easy to understand until & unless you wanna do all the thermodynamic calculations & all that stuff ! more “How does a 4 stroke engine work ?”
In my previous article we saw about how trains turn on curved tracks. Well in automobiles, we can’t use the same principle for turning around a corner as our cars don’t run on tracks. So we cannot design our tires as the train wheels. At the beginning of auto industry, only one rear wheel was driven by the engine. But if only one wheel was driven by the engine, it had to all the work & also it couldn’t maintain a good grip on the road.
So if we drive or supply power to both the wheels, the outer wheel had to cover more distance than the inner one while taking a turn. This is why we need differential – to drive both the wheels at different speeds!
Construction of differential :-
The standard differential mainly consists of 3 parts –
1. The pinion gear
2. The ring gear &
3. The spider gear
The pinion gear transfers the power from engine to the ring gear.The spider gear lies at the inner edge of the ring gear.The spider gear is free to rotate on 2 axes-
1. along with the rotation of ring gear &
2. on its own axis(spin)
Also the spider gear is connected to two more side gears.
Working of Differential :-
So, first the power is transferred from engine’s drive shaft to pinion gear, since the pinion gear & ring gear are meshed, power flows to ring gear.As the spider gear is connected with the ring gear, power flows to it. Finally from the spider gear, power gets transferred to both the side gears.
–When the vehicle moves straight, the spider gear doesn’t spin & will make BOTH the side gears rotate at same speed.
–When the vehicle moves on a curve road, the spider gear itself spins & either of the side gears move slower or faster than other one.Which will be faster & which will be slower is decided by the turn.
Make sure you watch the video. I assure you a 100% guarantee of understanding the whole thing.
Here is a demonstration in the most simplest way ever possible…!
you can jump to 1:56 if you want to skip the boring part.
Limited Slip Differential –
Limited Slip Differentials or LSDs are the most modern and complicated type differentials used today in automobiles.
The biggest disadvantage of ordinary differential is when a slip condition occurs only on one wheel. The differential transmits all the power to the one which has the least resistance. This wastes too much power. Along with that, it doesn’t help the car get out of the slip condition. This is where LSDs come into action.
Limited slip differential limits the amount of torque or power transmission on one wheel and transmits it to the other wheel. This is done via adding a pre-loaded spring or clutch packs.
Types of Limited slip differentials –
- Fixed value
- Torque sensitive
- Speed sensitive &
- Electronically controlled
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