Researches on a New Type of Rotating Thermic Motor

Abstract

The paper presents the constructive solution and the functioning principle of a new type of rotating motor that integrates an energy cogeneration plant. Mechanical power developed by the motor and the steam flow rate needed for the driving of the rotating motor are computed. Finally, there are determined the constructive and functional parameters of this type of motor, that represents the purpose of a scientific research contract in 2011.

Presentation of some constructive solutions for a rotating machine with profiled rotors

“…-The radius of the pump cylindrical casing (Rc): Rc = 0.05+0.048 = 0.098 m -The speed of the pump will be changed by changing the speed of the three-phase asynchronous motor that drives it. The speed of the pump is limited by the value of the speed of the fluid at the suction of the pump, thus avoiding the phenomenon of discontinuity of the fluid (air voids) [14].…”

“…To calculate the flow rate, the following characteristic dimensions of the rotating volumetric pump must be specified: l = 0.05 [m]; z = 0.048 [m]; Rr = 0.05 [m]; nr =100÷500 [rot⁄min].Obviously, the following must be specified:-The radius of the pump cylindrical casing (Rc): Rc = 0.05+0.048 = 0.098 m -The speed of the pump will be changed by changing the speed of the three-phase asynchronous motor that drives it. The speed of the pump is limited by the value of the speed of the fluid at the suction of the pump, thus avoiding the phenomenon of discontinuity of the fluid (air voids)[14].In the specialized literature[15] it is recommended that the velocity of the water in the suction line to the rotating machine is about 1 [m/s]. As a result, the pump speed will be within the limits of 100 ÷ 500 [rot/min] In order to carry out the research, it is necessary that the speed of the pump can be changed; so, it appears necessary to change the speed of the electric motor driving the pump.The volumetric flow rate variation at different speeds results and can be seen in figure6.…”

Modelagem Dos Sistemas De Admissão De Ar Para Motores Com Tecnologia Flex

“…Corrigimos a fórmula usando um termo nomeado eficiência volumétrica, que computa o distanciamento do motor de uma bomba de gás ideal [6]: …”

Influence of the Rotor Architecture and of the Speed on the Volumetric Efficiency of a New Type of Rotating Volumetric Machine

“…The machine is composed (fig. 1) by two identical rotors (2,5) with a special shape, that rotate with the same speed inside the casings (1,4); the synchronous rotations of the two rotors is provided by a cylindrical gearing composed by two gears with inclined teeth, placed inside or outside the machine. The gear wheels have the same pitch diameters and are placed on the shafts 7 and 9; they provide a rotation motion such that the rotating pistons (6) of the upper rotor can enter in the cavities (10) of the lower rotor.…”

“…1) and half of the height of the rotating piston. Researches made by the authors in the rotating machines field have as a departure point a patent [1].…”