High temperature and high speed exhaust gas turbine motor generator

Abstract

The invention discloses a high temperature and high speed exhaust turbine motor generator and belongs to the field of automobile engineering. The high temperature and high speed exhaust turbine motorgenerator comprises shafts, exhaust turbines, excitation windings, an excitation core, excitation poles, a rotor core, armature windings, armature poles, an armature core and the like. The high temperature and high speed exhaust turbine motor generator is characterized by that the armature core and the excitation core are located at two sides of the axial direction of the rotor core; a plurality of uniformly distributed fan-shaped through holes are set on the circumference of the rotor core; four fan-shaped convex excitation poles are uniformly distributed at the side of the excitation core facing the rotor core; sixth fan-shaped convex armature poles are uniformly distributed at the side of the armature core facing the rotor core; the excitation winding is wound on two adjacent excitationpoles; and the centralized armature winding is wound on each armature pole. According to the technology provided by the invention, the rotation inertia of the rotor core is relatively low and the pole number of a stator and a rotor is relatively low, so high speed rotation can be realized; and the high temperature and high speed exhaust turbine motor generator can be operated as a motor and alsocan be operated as a generator, so the high temperature and high speed exhaust turbine motor generator is very suitable for being used as the exhaust turbine motor generator.

Description

technical field [0001] The invention relates to a high-temperature and high-speed exhaust gas turbine electric generator, which belongs to the field of automobile engineering. Background technique [0002] At present, 25% to 40% of the total energy of fuel combustion in the cylinder of the automobile engine is converted into effective work, and the remaining 60% to 75% are lost, of which 25% to 35% is taken away by waste energy. Waste energy recovery has Practical significance. Most automotive alternators are alternators driven by pulleys, and the efficiency of the alternator is about 50%. Therefore, the total efficiency of the engine driving the generator to generate electricity is only about 17.5%. This is far less than the power generation efficiency of a turbo generator. Therefore, using the exhaust gas discharged from the engine to directly drive the generator to generate electricity can effectively utilize the characteristics of high power generation efficiency of t...

AI Technical Summary

Problems solved by technology

The permanent magnet rotor used in the above patent application motor cannot adapt to the high temperature and high speed operating environment where the exhaust gas turbine is located.

Images