CONTINUOUSLY VARIABLE TRANSMISSION ( CVT )..??????

Some people say that you can't teach an old dog new tricks.



But the Continuously variable Transmission (CVT ) , which Leonardo da vinci conceptualized more than 500 years ago is now replacing planetary automatic transmissions in some automobiles , is one old dog that has definitely learned a few new tricks.


SO WHAT DOES THAT CVT MEAN    ???????



CVT is a power transmission system from engine to the driveshaaft with the help of which our vehicles move forward.

Unlike traditional automatic transmissions , CVTs don't have a gearbox with a set number of gears , which means they don't have interlocking toothed wheels.



The most common type of CVT operates on an ingenius pulley system that allows an infinite variability between highest and lowest gears with no discrete steps or shifts.



If you are wondering why the word "gear" still appears in the explanation , remember that a gear refers to a ratio of engine shaft speed to the drive shaft speed.



Although CVTs change this ratio without using a set of gears. 



Today several car manufacturers , including General motors , Audi , Honda and Nissan , are designing their drivetrains around CVTs.


Some vehicles which are using this system are :-  

1.)   Aircrafts ( for electrical power generation

   2.)   Honda Activa                                                                            3.)   Snow vehicles 

4.)    Golf carts   e.t.c.




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WHAT IS A BEARING...??????

Have you ever wondered that how things like inline skate wheels and electronic motors spin so smoothly and quitely ?

The answer can be found in a little machine element called bearing.

The bearing makes many of the machines working possible which we use everyday.

So, A bearing is simply a machine which is used to support the shaft transmitting power and to reduce frictional  losses between machine elements.

As we all know if we have to transmit power to a long distance then we need a long shaft.

In that case we use a bearing to support that shaft to prevent its bending due to its own weight and also to reduce frictional losses.

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SADA BIKE or A SPOKELESS FOLD UP BICYCLE

A bicycle is great for transportation needs , but it takes up a lot of room inside a home.



In smaller living spaces , bike storage can be a tricky thing to figure out.



As a solution to this problem , Italian designer Gianluca Sada , of Sada bike , has come up with an amazing solution for easy bicycle storage developing a spokeless bicycle that folds up like an umbrella.


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