Making air vane motor

15 January, 2018 | Videos

In our new project, which is a motor that moves with the energy of the air, the pleasure that we receive during this project is double as besides the joy we got during making it, there is also the joy of recycling a system which is non-functional anymore.  This happened when we collected pieces from a broken air conditioning compressor taken from a car and from that we made a pneumatic motor, which can be used in our future projects.

The type of motor that we made is called ‘air vane motor’ and it can be used in various pneumatic tools and systems. Firstly, we started making it by taking the rotor of an old compressor as well as the vanes, which were divided right in the middle in order to enable the rotor to spin within the cylinder. We, also took the bearing of the old compressor to enhance the concept of recycling. 

Then, we turned two aluminium papers sized 100 mm in diameter and 50 mm in thickness to make them the place where the bearings and the o-rings will be placed so that the rotor to be rotated without making any noise, and to achieve a smooth move and keep the air inside the machine when it’s activated. Further, a cylinder was placed between the two aluminium papers that was taken by a tube that is used for making hydraulic pistons and it has great preciseness and smooth internal surface to make the vanes of the rotor slide smoothly on the walls of the cylinder keeping the air inside. 

The cylinder was placed at the centre of the two aluminium papers while the nests of the bearings were made 9mm away from the centre. Therefore, the rotor of the motor is located off centre in relation to the cylinder as a result on the one point of the rotor, the vanes are completely closed while at the exact opposite side of it, the vanes are completely open. In this way, when the air is inserted to the cylinder it pushes the vanes that are completely open and when the rotor spins, the air is exerted from the cylinder as a result we managed to have constant air provision. This procedure happens constantly so the spinning is constant as well.

Finally, there are two holes on the cylinder that work as the insertion and the exertion and they can work in reverse in order to change the torque of the motor’s spinning. Certainly, this functional motor was not just made to present its functionality but also to show to the public how it works. Also, we are aware of the fact that if we used vanes made of carbon fibre, a lighter rotor and many other things would increase the performance of this motor. Although, we should highlight that at 8 bars, the particular motor reached an exertion in about 3000rpm and a sufficient torque and compared to the amount of money that we spent to make it, we are sure that it worth every minute of the procedure of creating it.

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