Romania's State Office for Trademarks and Patents has awarded an inventor's patent to Romanian Emil Tarnavean of Targu Mures after being satisfied that his invention, the rotary piston, is a technological world first.
Tarnavean, a 1983 graduate of the Bucharest Faculty of Automatics, came up with an invention after four years of intense work, an invention that could revolutionise many industries, including the automotive industry.
Tarnavean, a 1983 graduate of the Bucharest Faculty of Automatics, came up with an invention after four years of intense work, an invention that could revolutionise many industries, including the automotive industry.
The inventor claims that the rotary piston eliminates the traditional crank-connecting rod system, while providing the same revolution efficiency, reaching very high revolution cycles, eliminating vibrations and coming for a smaller price than the price for a four -stroke engine. The new device can transmit the couple, a force that is currently generated with the aid of the crank-connecting rod system, through rotational or circular movements.
Tarnavean says that automobile transmission is currently obtainable with axis and toothed wheels but his invention can generate transmission hydraulically. He explains that a piston will be attached to the engine , acting as a pump, while another piston will be attached to the wheel, acting as a hydraulic motor , whereas a liquid will circulate between the two pistons through a flexible cable, without the need to use axis and toothed wheels.
'This could be the end of internal combustion engines, which will be replaced with a burner, the same as in a thermal heating system. The burner will move the rotary piston, which can be operated with diesel fuel, petrol or alcohol, without the need for sparking plugs or compression. The invention could also be used in gear boxes.
Currently, three gears are possible with the aid of three toothed wheels , but with the aid of three rotary pistons there could be 13 gears, and with four, no less than 40. The mechanism will completely eliminate vibrations. It can be used after the pattern of a turbine system and for the manufacturing of ceramic engines,' says Tarnavean.
The inventor explains that attempts at a rotary engine have already been made in the world, and one of the most known outcomes is the Wankel engine by Mazda.
The inventor explains that attempts at a rotary engine have already been made in the world, and one of the most known outcomes is the Wankel engine by Mazda.
'The problem is the Wankel engine is a joke compared with my piston. The piston in the case of the Wankel is triangular in shape, with sides curving inside, that rotates on an axis within an oval shape. When rotating, the axis moves and oscillates, but more than 3,200 rotations per cycle are hard to achieve, a limitation that is no longer valid as far as my piston is concerned,' says Tarnavean.
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