Zero-leakage type Stirling engine

Abstract

A zero-leakage type Stirling engine relates to the technical field of conversion of thermal energy and aims to solve the problems that in the existing combustion motor, the thermal conversion efficiency is low, the combustion is incomplete so as to cause a large number of pollutive gas to be discharged into the air; and in the existing Stirling engine, power / weight ratio is small, sealing is difficult and zero leakage can not be realized. A sealed cavity of the Stirling engine is connected with an external air vent valve, a conduction initial point of the air vent valve is at a part with internal system pressure of the sealed cavity of the Stirling engine is just between a value being equal to an ambient pressure value and a value being rotated for 20 degrees, the conduction angle of the air vent valve is ranged from 5 degrees to 25 degrees, the movable sealing positions of all parts of the Stirling engine and the external air vent port of the air vent valve are all sealed in a closed shell, and the pressure of gas working fluid in the closed shell is 1-300 atmospheric pressure or higher. By the zero-leakage type Stirling engine provided by the invention, combustion thermal energy of fuel can be directly and effectively converted into mechanical energy, zero leakage and huge power / weight ratio can be realized, and the conversion efficiency is ranged from 20 percent to 80 percent.

Description

technical field [0001] The present invention relates to the technical field of converting thermal energy into mechanical energy. Background technique [0002] Existing internal combustion engines are widely used in various fields, of which the number of automotive applications is the largest, which brings a lot of convenience to human life, but its heat / machine conversion efficiency is generally between 20% and 40%, and the remaining 60%. ~80% of the heat energy cannot be used and needs to be discharged to the outside. At the same time, because the fuel cannot be completely burned, the exhaust gas will emit a large amount of polluting gases into the air, causing the air to be seriously polluted. According to statistics, these are the main causes of global warming. one of the reasons. It has brought irreparable loss and destruction to the future living environment of human beings. [0003] The Stirling engine was invented by Stirling in 1816. Stirling engines are unique he...

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to overcome the problems of low heat conversion efficiency (between 20% and 40%) of existing internal combustion engines, incomplete combustion and discharge of a large amount of polluting gases into the air, and the existence of power / weight problems in existing Stirling engines. The ratio is small, and the sealing is difficult to achieve zero leakage, etc.

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