Turbine boosting and generating device

Abstract

The invention provides a turbine boosting and generating device. The turbine boosting and generating device comprises a shell, a bearing, a stator, a controller and a rotor, wherein the rotor comprises a gas exhaust turbine, a gas inlet turbine, a shaft and a rotor iron core; and waste gas discharged by an engine drives the gas exhaust turbine and then drives coaxial gas inlet turbine and the rotor iron core to rotate and realize boosting and generation of the supplied gas. The rotor iron core is a four-pole salient pole type structure without excitation source, so that the rotor iron core can be adaptive to high-speed rotation of a waste gas turbine; the rotor is few in poles, small in radial size, quick in response speed, simple in structure and high temperature-resistant; part of an exciting winding winds outwards, so that a good cooling effect is achieved; a generating device is capable of worming in a gas exhaust pipe with high temperatures; and the generating device can be switched to a motor in operation, so that the boosting effect when the engine is in low speed can be improved.

Description

technical field [0001] The invention relates to a turbocharger power generation device, which belongs to the technical field of automobile motors. Background technique [0002] At present, the high-temperature and high-pressure exhaust gas emitted by the engine takes away about 40% of the thermal energy of the fuel, and most engines cannot effectively use this energy. The exhaust gas turbocharging device realizes the utilization of part of the kinetic energy of the exhaust gas, improves the fuel utilization rate of the engine, and is currently being used more and more widely. [0003] However, the exhaust gas turbocharging device has a certain time-lag effect, that is, its speed is low when the engine is just started, and it cannot effectively provide supercharging. Only when the engine speed reaches 2000 rpm, the supercharging effect is more obvious. Therefore, adding an electric motor to the exhaust gas turbine and rapidly increasing the turbine speed at startup can sign...

AI Technical Summary

Problems solved by technology

The invention patent with the application number 200910133401.3: Exhaust gas driven double salient pole generator discloses an exhaust gas driven double salient pole generator. Its structure adopts a typical double salient pole motor structure. Both the permanent magnet and the permanent magnet are located in the slot, so the slot fullness rate is high and heat dissipation is difficult, and the application does not involve the corresponding technology combined with exhaust gas turbocharging

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