Zero-leakage external combustion heat engine

Abstract

The invention discloses a zero-leakage external combustion heat engine, which relates to the technical field of heat energy conversion and solves the problems that the thermal conversion efficiency of the traditional internal-combustion engine is low and combustion is imperfect and the traditional Stirling engine has high cost, smaller ratio of power / weight and is difficult to seal, thus, zero-leakage cannot be realized due to the existence of an expansion chamber, a compression chamber, a heater, a cooling chamber, a regenerator and the like . The gas-guide cylinder cavity of the zero-leakage external combustion heat engine is communicated with the upper part of the work applying cylinder cavity to form a sealed cavity which is connected with an external ventilating valve. The conductive starting point of the ventilating valve is determined in such a way that the gas-guide piston moves between the previous 20 degrees and the next 20 degrees at the top end of the high temperature end of the gas-guide cylinder cavity. The conductive angle of the ventilating valve ranges from 5 degrees to 30 degrees. All mobile sealing positions and the external ventilating ends of the ventilating valve are sealed in a sealed shell. The invention has the advantages of converting combustion heat energy of fuel directly to efficient mechanical energy, thereby realizing zero-leakage and super ratio of power / weight with the conversion efficiency of 20-80%.

Description

technical field [0001] The 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, among which the number of automotive applications is the largest, which brings a lot of convenience to human life, but its heat / engine 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 outside. At the same time, because the fuel cannot be completely burned, the exhaust gas will emit a large amount of polluting gas into the air, which will seriously pollute the air. According to statistics, these are the main causes of global warming. one of the reasons. It has brought irreparable loss and damage to the future living environment of human beings. [0003] The Stirling engine was invented by Stirling in 1816. Stirling engines are unique heat engines in that their ...

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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 existing Stirling engines also have expansion chambers, Compression chambers, heaters, cooling chambers, regenerators, etc. are expensive, have a low power / weight ratio, and are difficult to seal to achieve zero leakage, etc.

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