Automobile exhaust waste heat recycling and charging device based on pulse tube generator

Abstract

The invention relates to an automobile exhaust waste heat recycling and charging device based on a pulse tube generator. The device comprises an expansion machine (1) capable of recovering work, a pulse tube generator thermal head (2), a heat exchange system (3) and a rectifying system (4), wherein the heat exchange system (3) takes heat from high-temperature exhaust gas and then release heat at the room temperature end; through the simple harmonic motion of a piston of the expansion machine (1) capable of recovering work, the transmission of acoustical power from one high-temperature end to another high-temperature end and the recycling process of a working medium in the expansion machine (1) and the pulse tube generator thermal head (2) is completed, so that electricity power is generated by the piston motion of the expansion machine (1) to complete the process of electricity generation, thus being capable of charging automobile storage batteries though the rectifying system (4). Compared with the prior art, the automobile exhaust waste heat recycling and charging device based on the pulse tube generator has the advantages that thermal energy is recycled to provide power to an automobile while thermal pollution of the automobile is reduced, so that a positive circulation of energy saving and emission reduction inside the automobile is realized; in addition, no movement component is arranged at the high-temperance, no high-precision matching requirement is imposed, and the machining difficulty is low, thus being capable of improving reliability of a system and feasibilityof processing and manufacturing.

Description

technical field [0001] The invention relates to a waste heat power generation device, in particular to an automobile exhaust waste heat recovery charging device based on a pulse tube generator. Background technique [0002] The energy released by fuel combustion is converted into mechanical energy by the internal combustion engine, accounting for only about one-third of the total energy, and most of it is taken away by vehicle exhaust and released into the atmosphere. On the one hand, the emission of a large amount of greenhouse gases has caused environmental pollution, and on the other hand, a large amount of heat has been discharged without utilization, resulting in a waste of energy. If we can make full use of the waste heat of vehicles and convert part of it into electric energy or vehicle kinetic energy, it will not only improve energy utilization, reduce vehicle energy consumption, increase vehicle mileage, but also reduce oil consumption, reduce greenhouse gas emissio...

AI Technical Summary

Problems solved by technology

[0003] However, due to the low grade of waste heat from automobile exhaust and the particularity of the automobile itself, most of the current waste heat recovery devices for automobile exhaust are in the laboratory stage, with their own shortcomings, and it is difficult to put them into practical use: the thermal efficiency of semiconductor thermoelectric power generation is low, and the long-term operation is reliable Poor performance; Abandoned turbocharging has a huge impact on vehicle exhaust emissions; Rankine cycle has complex structure and huge size; Stirling generator requires high machining accuracy, difficult assembly, and complicated movement

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